A frame structure for an electric sofa with an assistive standing function

Abstract

This utility model relates to the field of electric sofa technology and discloses a frame structure for an electric sofa with an auxiliary standing function. The structure includes a base frame and a fixed base. A mounting seat one is fixedly installed on the base frame. A push rod sleeve is rotatably installed at the end of the mounting seat one away from the base frame. A movable push rod is slidably connected to the inner edge of the push rod sleeve. A second mounting seat is rotatably installed at the end of the movable push rod away from the push rod sleeve. This frame structure for an electric sofa with an auxiliary standing function connects two second adjusting rods on both sides via a fixed rod to prevent lateral deformation and enhance the overall frame rigidity. The standing frame is lifted upwards by the movable push rod and adjusting rods, helping the user's legs to stand up. The footrest simultaneously supports the feet, preventing the feet from dangling in the air when standing. Furthermore, the auxiliary standing function can be achieved with a single motor, avoiding a more complex structure that would lead to higher costs, facilitating subsequent maintenance and replacement, and reducing production costs.

Description

Technical Field

[0001] This utility model relates to the field of electric sofa technology, specifically to a frame structure for an electric sofa with an auxiliary standing function. Background Technology

[0002] Sofas, as a common type of furniture, not only meet people's daily rest needs but also play an important role in enhancing comfort in home life. As modern people's demands for quality of life continue to rise, especially in the pursuit of a healthy lifestyle, functional sofas have gradually become a market hotspot. In order to meet people's needs in various scenarios, these sofas can not only be electrically adjusted but also have an assistive standing function, which can greatly improve the user experience and quality of life.

[0003] Chinese Utility Model Patent Publication No. CN221129344U discloses a seat frame and an electric sofa using the same frame. The specification of the seat frame and the electric sofa using the same frame discloses that a first electric push rod pushes the guide rod to slide to the bottom of the arc-shaped hole, causing the left and right support rods to tilt forward simultaneously. While the seat frame of this utility model has a forward tilting function and its structure is simple and stable, the use of multiple motors to adjust the angle of the frame and footrest in both the seat frame and the electric sofa using the same frame can lead to higher costs and a more complex overall structure, resulting in higher maintenance costs and hindering widespread adoption. Summary of the Invention

[0004] The technical problem to be solved by this utility model is to provide a frame structure for an electric sofa with an auxiliary standing function. It can effectively solve the problem that in the prior art, the angle adjustment of the frame and footrest is achieved by multiple motors, which easily leads to high cost, complex overall structure, and high subsequent maintenance cost, thus making it inconvenient to promote and use.

[0005] The technical solution adopted by this utility model is: a frame structure for an electric sofa with an auxiliary standing function, including a base frame and a fixed seat. A mounting seat one is fixedly installed on the base frame. A push rod sleeve is rotatably installed at the end of the mounting seat one away from the base frame. A movable push rod is slidably connected to the inner edge of the push rod sleeve. A mounting seat two is rotatably installed at the end of the movable push rod away from the push rod sleeve. A fixed frame is fixedly installed at the end of the mounting seat two away from the movable push rod. A first adjusting rod and a second adjusting rod are rotatably installed at the end of the fixed seat away from the base frame. A connecting block is fixedly installed at the end of the fixed frame near the base frame.

[0006] Preferably, a lead screw motor is fixedly mounted at one end of the push rod sleeve near the mounting base, and the output end of the lead screw motor is adapted to the movable push rod.

[0007] With the above technical solution, when the lead screw motor is started, the rotation of its output shaft is driven by the lead screw nut structure, which in turn drives the movable push rod to extend and retract axially along the push rod sleeve. This pushes the mounting base and the fixed frame, thereby lifting the lifting frame and achieving the auxiliary lifting function. The lead screw transmission has high precision and can control the extension and retraction stroke of the movable push rod. Furthermore, the motor drive is stable and can provide continuous and controllable thrust, avoiding jamming or sudden shaking during the lifting process and improving safety.

[0008] Preferably, a groove is provided on the outer edge of the push rod sleeve, and the push rod sleeve is slidably connected to the movable push rod through the groove.

[0009] Through the above technical solution, by adapting the contour of the slide groove to the outer wall of the moving push rod, when the moving push rod extends and retracts under the drive of the lead screw motor, the slide groove can prevent the moving push rod from rotating or shaking, ensuring that it moves in a straight line, reducing friction and wear between the moving push rod and the push rod sleeve, extending the service life of the components, and the stable sliding trajectory ensures the movement direction of the fixed frame and the lifting frame, avoiding structural jamming caused by offset.

[0010] Preferably, the end of the first adjusting rod away from the fixed base is rotatably connected to the connecting block, and the end of the second adjusting rod away from the fixed base is rotatably installed to the connecting block.

[0011] Through the above technical solution, and through the design of the first and second adjusting rods, when the moving push rod pushes the fixed frame, the connecting block moves with the fixed frame, causing the first and second adjusting rods to rotate around the fixed seat. The two form a triangular support, distributing the thrust to the fixed seat and the base frame, while simultaneously raising the lifting frame. The multi-link structure disperses the force, avoiding deformation caused by excessive load on a single point. Furthermore, the rotating adjusting rods can adaptively adjust with the lifting angle, ensuring a smooth lifting process.

[0012] Preferably, the fixed seat has a triangular cross-section, and the fixed seat, the first adjusting rod, the connecting block, and the second adjusting rod together form a parallelogram shape.

[0013] The above technical solution uses a triangular structure for the fixed seat. Because triangles have strong stability, they can stably withstand thrust as the fulcrum for the adjustment rod. Furthermore, the upper and lower bottom edges and the two sides of the parallelogram-shaped structure form a rigid frame, which can evenly distribute the pressure from the user's weight when standing up, improve the overall load-bearing stability of the structure, adapt to the usage needs of users of different weights, and avoid unilateral tilting, thus extending the service life of the frame.

[0014] Preferably, there are two identical fixed seats, first adjusting rods, connecting blocks, and second adjusting rods, and the two fixed seats, first adjusting rods, connecting blocks, and second adjusting rods are symmetrically distributed about the center line of the base frame.

[0015] The above technical solution ensures balanced force on both sides of the standing frame through a symmetrical layout. When the moving push rod pushes the fixed frame, the adjusting rods on both sides rotate synchronously, avoiding frame displacement or twisting caused by force on one side. This ensures the stability of the standing process, prevents the user's body from tilting, and the double-sided support reinforcement structure further enhances safety during use.

[0016] Preferably, a fixing rod is fixedly installed between the second adjusting rods, a lifting frame is provided at the end of the fixing frame away from the base frame, a foot support is provided at the end of the lifting frame away from the fixing frame, and a fixing foot is fixedly installed at the end of the base frame away from the fixing seat.

[0017] The above technical solution connects the second adjustment rods on both sides with a fixed rod to prevent lateral deformation and enhance the rigidity of the overall frame. The lifting frame is lifted upward by the moving push rod and the adjustment rod, which helps the user's legs to stand up. The footrest supports the feet at the same time to prevent the feet from dangling when standing up. The fixed feet increase the contact area between the base frame and the ground to prevent the sofa from sliding when standing up.

[0018] Compared with the prior art, this utility model provides a frame structure for an electric sofa with an auxiliary standing function, which has the following beneficial effects: 1. This electric sofa uses a frame structure with an auxiliary standing function. Through the design of the first and second adjustment rods, when the moving push rod pushes the fixed frame, the connecting block moves with the fixed frame, causing the first and second adjustment rods to rotate around the fixed seat. The two form a triangular support, distributing the pushing force to the fixed seat and the base frame, while raising the standing frame. The multi-link structure disperses the force, avoiding deformation caused by excessive load on a single point. In addition, the rotating adjustment rod can adaptively adjust with the standing angle to ensure a smooth standing process. 2. This electric sofa uses a frame structure with an auxiliary standing function. It is connected to the second adjustment rods on both sides by a fixed rod to prevent lateral deformation and enhance the rigidity of the overall frame. The standing frame is lifted upward by the moving push rod and the adjustment rod, which helps the user's legs to stand up. The footrest supports the feet at the same time to prevent the feet from hanging in the air when standing up. The auxiliary standing function can be achieved by a single motor, avoiding a more complex structure that would lead to higher costs. It is also easier to maintain and replace, and reduces production costs. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the three-dimensional structure of the present invention. Figure 1 ; Figure 2This is a schematic diagram of the three-dimensional structure of the present invention. Figure 2 ; Figure 3 This is a schematic diagram of the first state structure of this utility model; Figure 4 This is a schematic diagram of the mounting base 2 and the fixing frame of this utility model. Figure 1 ; Figure 5 This is a schematic diagram of the mounting base 2 and the fixing frame of this utility model. Figure 2 ; Figure 6 This is a schematic diagram of the second state structure of this utility model.

[0020] The components include: 1. Base frame; 2. Fixed feet; 3. Mounting seat one; 4. Push rod sleeve; 5. Screw motor; 6. Slide groove; 7. Moving push rod; 8. Mounting seat two; 9. Fixed frame; 10. Fixed seat; 11. First adjusting rod; 12. Connecting block; 13. Second adjusting rod; 14. Fixed rod; 15. Lifting frame; 16. Foot support. Detailed Implementation

[0021] 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.

[0022] Example 1: As Figure 1-6 As shown, the present invention provides a frame structure for an electric sofa with an auxiliary standing function, including a base frame 1 and a fixed seat 10. A mounting seat 3 is fixedly installed on the base frame 1. A push rod sleeve 4 is rotatably installed at the end of the mounting seat 3 away from the base frame 1. A movable push rod 7 is slidably connected to the inner edge of the push rod sleeve 4. A mounting seat 8 is rotatably installed at the end of the movable push rod 7 away from the push rod sleeve 4. A fixed frame 9 is fixedly installed at the end of the mounting seat 8 away from the movable push rod 7. A first adjusting rod 11 and a second adjusting rod 13 are rotatably installed at the end of the fixed seat 10 away from the base frame 1. A connecting block 12 is fixedly installed at the end of the fixed frame 9 near the base frame 1.

[0023] Specifically, a lead screw motor 5 is fixedly installed at one end of the push rod sleeve 4 near the mounting base 3. The output end of the lead screw motor 5 is adapted to the movable push rod 7. The advantage is that when the lead screw motor 5 is started, the rotation of its output shaft is driven by the lead screw nut structure, which is built into the movable push rod 7, to extend and retract along the axial direction of the push rod sleeve 4. This pushes the mounting base 8 and the fixed frame 9, thereby lifting the lifting frame 15 and realizing the auxiliary lifting function. The lead screw transmission has high precision and can control the extension and retraction stroke of the movable push rod 7. In addition, the motor drive is stable and can provide continuous and controllable thrust, avoiding jamming or sudden shaking during the lifting process and improving the safety of use.

[0024] Specifically, a groove 6 is provided on the outer edge of the push rod sleeve 4. The push rod sleeve 4 is slidably connected to the movable push rod 7 through the groove 6. The advantage is that, by adapting the contour of the groove 6 to the outer wall of the movable push rod 7, when the movable push rod 7 is extended and retracted under the drive of the lead screw motor 5, the groove 6 can prevent the movable push rod 7 from rotating or shaking, ensuring that it moves in a straight line, reducing friction and wear between the movable push rod 7 and the push rod sleeve 4, extending the service life of the components, and the stable sliding trajectory ensures the movement direction of the fixed frame 9 and the lifting frame 15, avoiding structural jamming caused by offset.

[0025] Specifically, the end of the first adjusting rod 11 away from the fixed base 10 is rotatably connected to the connecting block 12, and the end of the second adjusting rod 13 away from the fixed base 10 is rotatably installed to the connecting block 12. The advantage is that, through the design of the first adjusting rod 11 and the second adjusting rod 13, when the moving push rod 7 pushes the fixed frame 9, the connecting block 12 moves with the fixed frame 9, causing the first adjusting rod 11 and the second adjusting rod 13 to rotate around the fixed base 10. The two form a triangular support, distributing the thrust to the fixed base 10 and the base frame 1, while simultaneously raising the lifting frame 15. The force is distributed through the multi-link structure, avoiding deformation caused by excessive single-point load. Furthermore, the rotatably connected adjusting rod can adaptively adjust with the lifting angle, ensuring a smooth lifting process.

[0026] Example 2: Figure 2-6 As shown, this is an improvement on the previous embodiment.

[0027] Specifically, the fixed base 10 has a triangular cross-section. The fixed base 10, the first adjusting rod 11, the connecting block 12, and the second adjusting rod 13 together form a parallelogram shape. The advantage is that the triangular cross-section of the fixed base 10 has strong stability and can stably withstand the thrust as the rotation fulcrum of the adjusting rod. Furthermore, the upper and lower bases and the two sides of the parallelogram shape form a rigid frame, which can evenly distribute the pressure from the user's weight when standing up, improve the overall load-bearing stability of the structure, adapt to the usage needs of users of different weights, and at the same time avoid unilateral tilting and extend the service life of the frame.

[0028] Specifically, there are two identical fixed seats 10, first adjusting rods 11, connecting blocks 12, and second adjusting rods 13. The two fixed seats 10, first adjusting rods 11, connecting blocks 12, and second adjusting rods 13 are symmetrically distributed about the center line of the base frame 1. The advantage is that the symmetrical layout makes the force on both sides of the standing frame 15 balanced. When the moving push rod 7 pushes the fixed frame 9, the adjusting rods on both sides rotate synchronously, avoiding the frame offset or twisting caused by the force on one side. This ensures the stability of the standing process, prevents the user's body from tilting, and the double-sided support reinforcement structure can further improve the safety during use.

[0029] Specifically, a fixing rod 14 is fixedly installed between the second adjusting rods 13, a lifting frame 15 is provided at the end of the fixing frame 9 away from the base frame 1, a foot support 16 is provided at the end of the lifting frame 15 away from the fixing frame 9, and a fixing foot 2 is fixedly installed at the end of the base frame 1 away from the fixing seat 10. The advantages are that the second adjusting rods 13 on both sides are connected by the fixing rod 14 to prevent them from deforming laterally, thereby enhancing the rigidity of the overall frame. Furthermore, the lifting frame 15 is lifted upward by the moving push rod 7 and the adjusting rod, which helps the user's legs to stand up. The footrest 16 supports the feet simultaneously, preventing the feet from dangling when standing up. The fixing foot 2 increases the contact area between the base frame 1 and the ground, preventing the sofa from sliding when standing up.

[0030] Working Principle: During use, when the lead screw motor 5 is started, the rotation of its output shaft, through the lead screw nut structure, drives the movable push rod 7, which is built into the movable push rod 7, to extend and retract axially along the push rod sleeve 4. This, in turn, pushes the mounting base 2 8 and the fixed frame 9, causing the lifting frame 15 to lift, thus achieving the auxiliary lifting function. The lead screw transmission has high precision and can control the extension and retraction stroke of the movable push rod 7. Furthermore, the motor drive is stable and can provide continuous and controllable thrust, avoiding jamming or sudden shaking during the lifting process, thereby improving safety. The contour of the sliding groove 6 is adapted to the outer wall of the movable push rod 7. When the movable push rod 7 extends and retracts under the drive of the lead screw motor 5, the sliding groove 6 can prevent… The movable push rod 7 rotates or wobbles, ensuring its linear movement, reducing friction and wear between the movable push rod 7 and the push rod sleeve 4, extending the service life of the components, and ensuring the stable sliding trajectory ensures the movement direction of the fixed frame 9 and the lifting frame 15, avoiding structural jamming due to offset. Through the design of the first adjusting rod 11 and the second adjusting rod 13, when the movable push rod 7 pushes the fixed frame 9, the connecting block 12 moves with the fixed frame 9, driving the first adjusting rod 11 and the second adjusting rod 13 to rotate around the fixed seat 10. The two form a triangular support, distributing the thrust to the fixed seat 10 and the base frame 1, while simultaneously lifting the lifting frame 15. Through the multi-link structure, the force is distributed... The design distributes stress evenly, preventing deformation caused by excessive load on a single point. The adjustable rod, with its rotating connection, adaptively adjusts to the standing angle, ensuring a smooth rising process. The fixed base 10 has a triangular cross-section, which provides strong stability and serves as the fulcrum for the adjustable rod's rotation, stably bearing the thrust. Furthermore, the parallelogram-shaped structure's top and bottom edges, along with the two sides, form a rigid frame that evenly distributes the user's weight during standing, improving the overall structural stability and adapting to users of different weights. This also prevents unilateral tilting, extending the frame's lifespan. The symmetrical layout ensures even stress distribution on both sides of the standing frame 15. When the moving push rod 7 pushes the fixed frame 9, the adjusting rods on both sides rotate synchronously to avoid the frame shift or twisting caused by unilateral force, ensuring the stability of the standing process and preventing the user's body from tilting. The double-sided support reinforcement structure further improves the safety during use. The fixed rod 14 connects the second adjusting rods 13 on both sides to prevent lateral deformation and enhance the overall frame rigidity. The standing frame 15 is lifted upward under the drive of the moving push rod 7 and the adjusting rod, which helps the user's legs to stand up. The footrest 16 supports the feet synchronously to prevent the feet from dangling when standing up. The fixed foot 2 increases the contact area between the base frame 1 and the ground to prevent the sofa from sliding when standing up.

[0031] 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 framework structure with an auxiliary rising function for an electric sofa, comprising a base frame (1) and a fixed seat (10), characterized in that: Mounting seat 1 (3) is fixedly installed on the base frame (1). A push rod sleeve (4) is rotatably installed at the end of mounting seat 1 (3) away from the base frame (1). A movable push rod (7) is slidably connected at the inner edge of the push rod sleeve (4). Mounting seat 2 (8) is rotatably installed at the end of the movable push rod (7) away from the push rod sleeve (4). A fixing frame (9) is fixedly installed at the end of mounting seat 2 (8) away from the movable push rod (7). A first adjusting rod (11) and a second adjusting rod (13) are rotatably installed at the end of the fixing seat (10) away from the base frame (1). A connecting block (12) is fixedly installed at the end of the fixing frame (9) close to the base frame (1).

2. The framework structure with an auxiliary standing-up function for an electric sofa according to claim 1, characterized in that: The push rod sleeve (4) is fixedly mounted with a lead screw motor (5) at one end near the mounting base (3), and the output end of the lead screw motor (5) is adapted to the moving push rod (7).

3. The framework structure with an auxiliary standing-up function for an electric sofa according to claim 1, characterized in that: The push rod sleeve (4) has a groove (6) on its outer edge, and the push rod sleeve (4) is slidably connected to the movable push rod (7) through the groove (6).

4. The framework structure with an auxiliary standing-up function for an electric sofa according to claim 1, characterized in that: The end of the first adjusting rod (11) away from the fixed seat (10) is rotatably connected to the connecting block (12), and the end of the second adjusting rod (13) away from the fixed seat (10) is rotatably installed to the connecting block (12).

5. The framework structure with an auxiliary standing-up function for an electric sofa according to claim 4, characterized in that: The fixed seat (10) has a triangular cross-section, and the fixed seat (10), the first adjusting rod (11), the connecting block (12), and the second adjusting rod (13) together form a parallelogram shape.

6. The framework structure with an auxiliary standing-up function for an electric sofa according to claim 1, characterized in that: The fixed seat (10), the first adjusting rod (11), the connecting block (12), and the second adjusting rod (13) are all provided in two identical units, and the two fixed seats (10), the first adjusting rod (11), the connecting block (12), and the second adjusting rod (13) are symmetrically distributed about the center line of the base frame (1).

7. The framework structure with an auxiliary standing-up function for an electric sofa according to claim 1, characterized in that: A fixing rod (14) is fixedly installed between the second adjusting rods (13). A lifting frame (15) is provided at the end of the fixing frame (9) away from the base frame (1). A foot support (16) is provided at the end of the lifting frame (15) away from the fixing frame (9). A fixing foot (2) is fixedly installed at the end of the base frame (1) away from the fixing seat (10).

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