Zero-gravity multifunctional sofa iron stand

Abstract

The utility model relates to the technical field of sofa iron stands, and discloses a zero-gravity multifunctional sofa iron stand which comprises a parallel base plate, transverse plates are fixedly installed on the inner side surfaces of the two ends of the parallel base plate through bolts, and middle supporting plates are fixed to the outer walls of the middles of the transverse plates through bolts. The outer wall of the top end of the middle supporting plate is connected with a transverse frame through a rotating shaft, the outer wall of one end of the parallel base plate is connected with a back end supporting plate through a rotating shaft, and one end of the transverse frame is connected with a back end transverse pipe through angle iron and a rotating shaft. The zero-gravity multifunctional sofa iron stand is provided with the foot end transverse pipe and the back end connecting transverse pipe, and the sofa iron stand reaches a zero-gravity posture by assisting the rotated back end supporting plate and foot end supporting plate through telescopic adjustment of the foot end electric telescopic rod and the back end electric telescopic rod; and meanwhile, through limiting control of the limiting columns, the foot end electric telescopic rods and the back end electric telescopic rods, the comfort degree and safety of the iron stand in the using process are improved.

Description

Technical Field

[0001] This utility model relates to the field of sofa frame technology, specifically a zero-gravity multifunctional sofa frame. Background Technology

[0002] The sofa frame is a crucial component of a sofa, primarily used to support and secure its structure and parts. It is typically made of metal, such as iron or alloys, offering high strength and durability. While serving as a supporting structure and fixing component, it also incorporates adjustment features within the sofa. To enhance sofa comfort, sofa frames with zero-gravity functionality have been introduced to the market, providing a superior user experience.

[0003] A search revealed a zero-gravity sofa frame with publication number CN222853497U, comprising a base frame, an extension assembly, and a drive assembly. This design simplifies the sofa frame structure, reduces manufacturing difficulty, and saves production costs. However, the drive structure and extension mechanism of this sofa frame are relatively complex, and the single-motor structure can easily lead to a decrease in comfort and safety when users use the sofa frame. Therefore, we propose a zero-gravity multifunctional sofa frame. Utility Model Content

[0004] The purpose of this utility model is to provide a zero-gravity multifunctional sofa frame to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a zero-gravity multifunctional sofa frame, comprising:

[0006] A parallel substrate has horizontal plates bolted to its inner surfaces at both ends. A central support plate is bolted to the outer wall of the middle section of the horizontal plates. A crossbeam is connected to the top outer wall of the central support plate via a pivot. A back support plate is connected to the outer wall of one end of the parallel substrate via a pivot. A back cross tube is connected to one end of the crossbeam via an angle iron and a pivot. A lower bracket is bolted to the outer wall of one side of the middle section of the back cross tube. A foot-mounted electric telescopic rod is mounted to the inner side of the lower end of the lower bracket via a pivot. The telescopic end of the foot-mounted electric telescopic rod is connected to a foot-mounted... A horizontal tube is provided, and the foot end horizontal tube is installed on the inner wall of the end of the horizontal frame away from the back end horizontal tube via a pivot and angle iron. The inner surface of the parallel base plate near the foot end horizontal tube is equipped with a back end electric telescopic rod via a pivot. The inner wall of the end of the horizontal frame near the back end support plate is connected to a back end triangular support plate via a pivot. The inner surface of the middle part of the back end triangular support plate is connected to a back end connecting plate with an L-shaped end face structure via a pivot. The other end of the back end connecting plate is fixed to a back end connecting horizontal tube by bolts, and the telescopic end of the back end electric telescopic rod is connected to the lower middle part of the back end connecting horizontal tube via a pivot.

[0007] Furthermore, the inner wall of the end of the cross frame away from the back triangular support plate is connected to the first foot arm via a pivot, and the foot horizontal tube is connected to the middle inner wall of the first foot arm via a pivot. The other end of the first foot arm is connected to the second foot arm via a pivot, and the other end of the second foot arm is connected to the foot support plate via a pivot. The outer wall of the end of the cross frame near the first foot arm is connected to the third foot arm via a pivot, and the other end of the third foot arm is connected to the fourth foot arm via a pivot. The fourth foot arm is connected to the lower surface of one end of the foot support plate via a pivot. A limit post is fixed to the middle inner surface of the third foot arm.

[0008] Furthermore, the horizontal plate is symmetrically arranged about the central axis of the parallel substrate, and the horizontal frame is rotatably connected to the horizontal plate through the middle support plate. The foot-end electric telescopic rod is rotatably connected to the horizontal plate through the lower bracket, the back horizontal tube and the back support plate. At the same time, the foot-end horizontal tube is telescopically connected to the back horizontal tube through the foot-end electric telescopic rod.

[0009] Furthermore, the back-end connecting horizontal tube forms a telescopic connection with the parallel base plate through the back-end electric telescopic rod, and the back-end triangular support plate forms a rotatable connection with the cross frame through the back-end connecting plate, the back-end connecting horizontal tube, and the back-end electric telescopic rod.

[0010] Furthermore, the foot support plate is rotatably connected to the crossbar via the second foot arm, the first foot arm, and the foot tube, and the foot tube is rotatably connected to the first foot arm via the telescopic end of the foot electric telescopic rod.

[0011] Furthermore, the third rotating arm at the foot end is rotatably connected to the cross frame via the fourth rotating arm at the foot end and the foot end support plate, and the third rotating arm at the foot end is engaged with the second rotating arm at the foot end via the limiting post.

[0012] Compared with the prior art, the beneficial effects of this utility model are:

[0013] This zero-gravity multi-functional sofa frame is equipped with a foot end horizontal tube and a back end connecting horizontal tube. Through the extension and retraction adjustment of the foot end electric telescopic rod and the back end electric telescopic rod, the back end support plate and the foot end support plate after rotation help the sofa frame to achieve a zero-gravity posture. At the same time, the frame is controlled by limit posts, foot end electric telescopic rods and back end electric telescopic rods to improve the comfort and safety of the frame during use. Attached Figure Description

[0014] Fig. 1 This is a schematic diagram of the retracted iron frame structure of this utility model;

[0015] Fig. 2 This is a schematic diagram of the unfolded structure of the iron frame legs of this utility model;

[0016] Fig. 3 This is a schematic diagram of the structure of the iron frame of this utility model with both the back end and the foot end unfolded.

[0017] In the diagram: 1. Parallel base plate; 2. Horizontal plate; 3. Middle support plate; 4. Horizontal frame; 5. Back support plate; 6. Back horizontal tube; 7. Lower hanging frame; 8. Foot-end electric telescopic rod; 9. Foot-end horizontal tube; 10. Foot-end first swing arm; 11. Foot-end second swing arm; 12. Foot support plate; 13. Foot-end third swing arm; 14. Foot-end fourth swing arm; 15. Back electric telescopic rod; 16. Back triangular support plate; 17. Back connecting plate; 18. Back connecting horizontal tube; 19. Limiting post. Detailed Implementation

[0018] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0019] This utility model provides an improved zero-gravity multifunctional sofa frame. Please refer to [link / reference]. Figs. 1-3The system includes: a parallel base plate 1, with horizontal plates 2 bolted to the inner surfaces of both ends of the parallel base plate 1. The horizontal plates 2 are symmetrically positioned about the central axis of the parallel base plate 1. The horizontal plates 2 and the parallel base plate 1 serve as the bottom support structure for the sofa frame, ensuring its stable placement. A central support plate 3 is bolted to the outer wall of the middle section of the horizontal plate 2. A horizontal frame 4 is connected to the outer wall of the top of the central support plate 3 via a pivot. The horizontal frame 4 is rotatably connected to the horizontal plate 2 via the central support plate 3. The pivot allows for smooth rotation between the connecting components. One end of the outer wall of the parallel base plate 1 is connected to a horizontal support plate 4 via a pivot. A back support plate 5 is connected to the shaft. One end of the cross frame 4 is connected to a back horizontal tube 6 via an angle iron and a pivot. A lower bracket 7 is bolted to the outer wall of one side of the middle of the back horizontal tube 6. A foot-end electric telescopic rod 8 is installed on the inner side of the lower end of the lower bracket 7 via a pivot. The foot-end electric telescopic rod 8 is rotatably connected to the cross frame 2 via the lower bracket 7, the back horizontal tube 6, and the back support plate 5. The telescopic end of the foot-end electric telescopic rod 8 is connected to a foot-end horizontal tube 9 via a pivot. The foot-end horizontal tube 9 is installed on the inner wall of the end of the cross frame 4 away from the back horizontal tube 6 via a pivot and an angle iron. The foot-end horizontal tube 9 is connected to the foot end... The electric telescopic rod 8 and the back end horizontal tube 6 form a telescopic connection. The back end electric telescopic rod 15 is installed on the inner surface of the end of the parallel base plate 1 near the foot end horizontal tube 9 through a pivot. The back end triangular support plate 16 is connected to the inner wall of the end of the cross frame 4 near the back end support plate 5 through a pivot. The back end triangular support plate 16 is rotatably connected to the cross frame 4 through the back end connecting plate 17, the back end connecting horizontal tube 18 and the back end electric telescopic rod 15. The back end triangular support plate 16 is adjusted by the telescopic extension of the back end electric telescopic rod 15. By rotating to a certain angle, the back end of the sofa iron frame can achieve a zero-gravity state. The inner surface of the middle part of the back end triangular support plate 16 is connected to the back end connecting plate 17 with an L-shaped end face structure via a pivot. The other end of the back end connecting plate 17 is fixed to the back end connecting horizontal tube 18 by bolts. The telescopic end of the back end electric telescopic rod 15 is connected to the lower surface of the middle part of the back end connecting horizontal tube 18 via a pivot. The back end connecting horizontal tube 18 forms a telescopic connection with the parallel base plate 1 through the back end electric telescopic rod 15. The back end connecting horizontal tube 18 is used to rotate and adjust in coordination with the movement of the back end triangular support plate 16, so that the back end triangular support plate 16 can stably maintain a zero-gravity state after adjustment.

[0020] Please see Figs. 1-2A zero-gravity multifunctional sofa frame includes: a first foot arm 10 connected to the inner wall of the end of the cross frame 4 away from the back triangular support plate 16 via a pivot, and a foot end horizontal tube 9 connected to the middle inner wall of the first foot end horizontal arm 10 via a pivot, and the foot end horizontal tube 9 is rotatably connected to the first foot end horizontal arm 10 via the telescopic end of the foot end electric telescopic rod 8; the other end of the first foot end horizontal arm 10 is connected to a second foot end horizontal arm 11 via a pivot, and the other end of the second foot end horizontal arm 11 is connected to a foot end support plate 12 via a pivot, the foot end support plate 12 is rotatably connected to the cross frame 4 via the second foot end horizontal arm 11, the first foot end horizontal arm 10, and the foot end horizontal tube 9; and a third foot end horizontal arm 10 connected to the outer wall of the cross frame 4 near the first foot end horizontal arm 10 via a pivot. The third foot arm 13 has a pivot at one end, which is connected to a fourth foot arm 14. The third foot arm 13 is rotatably connected to the cross frame 4 via the fourth foot arm 14 and the foot support plate 12. The fourth foot arm 14 is connected to the lower surface of one end of the foot support plate 12 via a pivot. A limit post 19 is fixed to the inner surface of the middle part of the third foot arm 13. The third foot arm 13 is engaged with the second foot arm 11 via the limit post 19. The limit post 19 is used to limit the rotation angle of the foot support plate 12 to prevent the foot support plate 12 from deflecting too much and affecting the user experience of the sofa frame, and to prevent the foot support plate 12 from rotating too much and injuring the user or the sofa.

[0021] Working Principle: For this type of zero-gravity multi-functional sofa frame, the parallel base plate 1 and the horizontal plate 2 are used to maintain structural stability at the bottom of the frame. The middle support plate 3 is used to adjust and stabilize the upper horizontal frame 4 in the middle of the horizontal plate 2. The horizontal frame 4 connects the back support plate 5, the back triangular support plate 16, the first foot arm 10, and the third foot arm 13 in the sofa frame. It is connected via the electric telescopic rod 8 at the foot end and the electric telescopic rod 15 at the back end (model: Jiazhini-). The rotation adjustment of the foot end horizontal tube 9 and back end horizontal tube 6 (DDTG13) allows the sofa frame to transform into a zero-gravity posture through shape conversion. The electric telescopic rod has a stroke control function, facilitating stable extension and retraction length adjustment. Subsequently, when the foot end electric telescopic rod 8 is adjusted at its extension end, the extension end of the foot end electric telescopic rod 8 drives the first foot end rotating arm 10, the second foot end rotating arm 11, the third foot end rotating arm 13, and the fourth foot end rotating arm 14 to rotate. Under the control and limitation of the limit post 19 and the stroke limit of the extension end of the foot end electric telescopic rod 8, the foot... The end support plate 12 can remain stable after rotating to a suitable angle, providing a better foot support experience and safety. Finally, when the back end electric telescopic rod 15 retracts at the telescopic end, it drives the back end connecting crossbar, the back end connecting plate 17 and the back end triangular support plate 16 to rotate simultaneously, so that the back end triangular support plate 16 is in a tilted state, providing a better back reclining experience. At the same time, it drives the back end crossbar 6 to rotate further, so that the foot support can be adjusted accordingly to achieve a zero-gravity posture mode. Through this sofa frame, the sofa provides a stable zero-gravity posture experience and safety.

[0022] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A zero-gravity multi-functional sofa frame, characterized in that, include: A parallel substrate (1) has horizontal plates (2) fixed to its inner surfaces at both ends by bolts. A middle support plate (3) is fixed to the outer wall of the middle part of the horizontal plate (2) by bolts. A cross frame (4) is connected to the outer wall of the top of the middle support plate (3) by a pivot. A back support plate (5) is connected to the outer wall of one end of the parallel substrate (1) by a pivot. A back cross tube (6) is connected to one end of the cross frame (4) by an angle iron and a pivot. A lower bracket (7) is fixed to the outer wall of one side of the middle part of the back cross tube (6) by bolts. A foot-end electric telescopic rod (8) is installed on the inner side of the lower end of the lower bracket (7) by a pivot. The telescopic end of the foot-end electric telescopic rod (8) is connected to the foot-end cross tube (9) by a pivot. The foot end horizontal tube (9) is installed on the inner wall of the end of the cross frame (4) away from the back end horizontal tube (6) via a pivot and angle iron. The inner surface of the parallel base plate (1) near the foot end horizontal tube (9) is equipped with a back end electric telescopic rod (15) via a pivot. The inner wall of the end of the cross frame (4) near the back end support plate (5) is connected to a back end triangular support plate (16) via a pivot. The inner surface of the middle part of the back end triangular support plate (16) is connected to a back end connecting plate (17) with an L-shaped end face structure via a pivot. The other end of the back end connecting plate (17) is fixed to a back end connecting horizontal tube (18) by bolts. The telescopic end of the back end electric telescopic rod (15) is connected to the lower surface of the middle part of the back end connecting horizontal tube (18) via a pivot.

2. The zero-gravity multifunctional sofa frame according to claim 1, characterized in that: The inner wall of the end of the cross frame (4) away from the back triangular support plate (16) is connected to the first foot arm (10) via a pivot, and the foot horizontal tube (9) is connected to the middle inner wall of the first foot arm (10) via a pivot. The other end of the first foot arm (10) is connected to the second foot arm (11) via a pivot. The other end of the second foot arm (11) is connected to the foot support plate (12) via a pivot. The outer wall of the end of the cross frame (4) near the first foot arm (10) is connected to the third foot arm (13) via a pivot. The other end of the third foot arm (13) is connected to the fourth foot arm (14) via a pivot. The fourth foot arm (14) is connected to the lower surface of one end of the foot support plate (12) via a pivot. The middle inner surface of the third foot arm (13) is fixed with a limit post (19).

3. The zero-gravity multifunctional sofa frame according to claim 1, characterized in that: The horizontal plate (2) is symmetrically arranged about the central axis of the parallel base plate (1), and the horizontal frame (4) is rotatably connected to the horizontal plate (2) through the middle support plate (3). The foot end electric telescopic rod (8) is rotatably connected to the horizontal plate (2) through the lower bracket (7), the back end horizontal tube (6) and the back end support plate (5). At the same time, the foot end horizontal tube (9) is telescopically connected to the foot end electric telescopic rod (8) and the back end horizontal tube (6).

4. The zero-gravity multifunctional sofa frame according to claim 1, characterized in that: The back end connecting horizontal tube (18) forms a telescopic connection with the parallel base plate (1) through the back end electric telescopic rod (15), and the back end triangular support plate (16) forms a rotatable connection with the cross frame (4) through the back end connecting plate (17), the back end connecting horizontal tube (18) and the back end electric telescopic rod (15).

5. The zero-gravity multifunctional sofa frame according to claim 2, characterized in that: The foot support plate (12) is rotatably connected to the cross frame (4) through the second foot swing arm (11), the first foot swing arm (10) and the foot horizontal tube (9), and the foot horizontal tube (9) is rotatably connected to the first foot swing arm (10) through the telescopic end of the foot electric telescopic rod (8).

6. The zero-gravity multifunctional sofa frame according to claim 2, characterized in that: The third rotating arm (13) at the foot end is rotatably connected to the cross frame (4) through the fourth rotating arm (14) at the foot end and the foot end support plate (12), and the third rotating arm (13) at the foot end is engaged with the second rotating arm (11) at the foot end through the limiting post (19).

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