An age-friendly sofa with a support structure

Abstract

This invention provides an age-friendly sofa with an assistive lifting structure, comprising a main frame, a seat cushion, and a backrest. Two armrests are mounted on the upper side of the main frame, with the back of each armrest fixedly connected to a U-shaped connecting plate. The U-shaped connecting plate is located on the back of the backrest, and a lead screw is connected to the U-shaped connecting plate. The lead screw is mounted on the back of the backrest and connected to the output shaft of a servo motor. Handrails are installed inside each armrest, with a first raise button and a first lower button installed at the front end of each armrest, and a second raise button and a second lower button installed at the lower end of each handrail. This invention expands the lifting height by controlling the armrests in two stages, effectively assisting the elderly in getting up. It makes standing up easy and reduces the fatigue experienced by the elderly when getting off the sofa.

Description

Technical Field

[0001] This utility model relates to the field of furniture, and in particular to an age-friendly sofa with a support structure. Background Technology

[0002] A sofa is a type of furniture, a multi-seat chair with upholstery and armrests. Originating in Western countries, it was later introduced to Asia and became a key element of Western-style décor and modern home design. The frame is made of wood or steel, lined with cotton or other foam materials, making it generally comfortable.

[0003] In existing technologies, there are usually two ways for the elderly to get up from the sofa: one is to use their hands to support their knees and stand up by using their leg strength; the other is to use their hands to support themselves on the sofa armrests and then stand up by using their arm strength. Because the elderly are old and their joints are aging, they need to exert a lot of effort to stand up from the sofa, which is difficult and tiring.

[0004] Therefore, there is a need for an age-friendly sofa with a lifting mechanism to help the elderly get up from the sofa. Utility Model Content

[0005] The present invention aims to provide an age-friendly sofa with a support structure to overcome or at least partially solve the above-mentioned problems.

[0006] To achieve the above objectives, the technical solution of this utility model is specifically implemented as follows:

[0007] This utility model provides an age-friendly sofa with a lifting structure, including a main frame, a seat cushion, and a backrest. The seat cushion is installed at the inner bottom of the main frame, and the backrest is installed at the inner rear of the main frame. Two armrests are provided on the upper side of the main frame, and the two armrests are located on the left and right sides of the backrest, respectively. The back of the armrests is fixedly connected to a U-shaped connecting plate, and the U-shaped connecting plate is located on the back of the backrest. A lead screw is connected to the U-shaped connecting plate, and the lead screw is installed on the back of the backrest and connected to the output shaft of a servo motor.

[0008] The armrest arm is equipped with a handle bar, and a first up button and a first down button are respectively installed at the front end of the armrest arm. A second up button and a second down button are respectively installed at the lower end of the handle bar. The first up button, the first down button, the second up button and the second down button are all connected to the control terminal through wires, and the control terminal is connected to the servo motor through wires.

[0009] As a further embodiment of this utility model, a handle groove is provided on the lower side of the armrest, and the handle rod is fixedly installed in the handle groove.

[0010] As a further embodiment of this utility model, a guide rail is also fixedly installed on the back of the backrest, and the U-shaped connecting plate is slidably connected to the backrest through the guide rail.

[0011] As a further embodiment of this utility model, a bearing seat is also fixedly installed on the back of the backrest, and the bearing shaft is rotatably connected to the upper and lower ends of the lead screw through the bearing. The servo motor is fixedly installed at the lower end of the bearing seat, and its output shaft is connected to the lead screw.

[0012] As a further embodiment of this utility model, the U-shaped connecting plate is fixedly connected to the two handrails by bolts.

[0013] As a further embodiment of this utility model, the handle bar has a hole inside for the wire to pass through.

[0014] This utility model provides an age-friendly sofa with an assistive lifting structure. Its advantages are: by controlling the armrests to raise and lower in two stages, the height of the lifting is expanded, which effectively assists the elderly to stand up. It is convenient and easy for the elderly to stand up, reducing the fatigue of the elderly when getting up from the sofa. Moreover, the built-in design also ensures the overall aesthetics of the sofa. It is simple to operate and highly efficient to use. Attached Figure Description

[0015] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0016] Figure 1 This is a schematic diagram of the structure of this utility model.

[0017] Figure 2 This is a rear view of the present invention.

[0018] Figure 3 This is a cross-sectional view of the present invention.

[0019] Figure 4 This utility model Figure 3 A magnified structural diagram of point A in the middle.

[0020] Figure 5 This is a block diagram illustrating the working principle of this utility model.

[0021] In the diagram: 1. Main frame; 2. Seat cushion; 3. Backrest; 4. Armrest; 5. First up button; 6. First down button; 7. U-shaped connecting plate; 8. Control terminal; 9. Servo motor; 10. Guide rail; 11. Lead screw; 12. Handle bar; 13. Second up button; 14. Second down button; 41. Handle groove. Detailed Implementation

[0022] Exemplary embodiments of the present disclosure will now be described in more detail with reference to the accompanying drawings. While exemplary embodiments of the present disclosure are shown in the drawings, it should be understood that the present disclosure may be implemented in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the disclosure to those skilled in the art.

[0023] See Figure 1-5 This utility model provides an age-friendly sofa with a lifting structure, including a main frame 1, a seat cushion 2, and a backrest 3. The seat cushion 2 is installed at the inner bottom of the main frame 1, and the backrest 3 is installed at the inner rear of the main frame 1. Two armrests 4 are provided on the upper side of the main frame 1, and the two armrests 4 are located on the left and right sides of the backrest 3, respectively. The back of the armrests is fixedly connected to a U-shaped connecting plate 7, and the U-shaped connecting plate 7 is set on the back of the backrest 3. A lead screw 11 is connected to the U-shaped connecting plate 7, and the lead screw 11 is installed on the back of the backrest 3 and connected to the output shaft of a servo motor 9.

[0024] The armrest 4 has a handle bar 12 installed inside, and a first up button 5 and a first down button 6 are installed at the front end of the armrest 4. A second up button 13 and a second down button 14 are installed at the lower end of the handle bar 12. The first up button 5, the first down button 6, the second up button 13 and the second down button 14 are all connected to the control terminal 8 through wires, and the control terminal 8 is connected to the servo motor 9 through wires.

[0025] The lower side of the armrest 4 is provided with a handle groove 41, and the handle bar 12 is fixedly installed in the handle groove 41. This achieves the purpose of the built-in design of the handle bar 12, ensuring the overall aesthetics of the sofa and making it convenient for the elderly to put their hands into the handle groove 41 and hold the handle bar 12.

[0026] A guide rail 10 is also fixedly installed on the back of the backrest 3. The U-shaped connecting plate 7 is slidably connected to the backrest 3 through the guide rail 10, which facilitates the movement of the U-shaped connecting plate 7.

[0027] A bearing seat is also fixedly installed on the back of the backrest 3, and the bearing shaft is rotatably connected to the upper and lower ends of the lead screw 11 through the bearing. The servo motor 9 is fixedly installed at the lower end of the bearing seat, and its output shaft is connected to the lead screw 11, which facilitates limiting the lead screw 11 and fixing the servo motor 9, thereby driving the lead screw 11 to rotate through the operation of the servo motor 9.

[0028] The U-shaped connecting plate 7 is fixedly connected to the two handrails 4 by bolts, thus connecting the U-shaped connecting plate 7 and the handrails 4 together, so that the handrails 4 can be raised and lowered synchronously by raising and lowering the U-shaped connecting plate 7.

[0029] The handle 12 has a hole inside for the wire to pass through, so that the control terminal 8 can be connected to the first up button 5, the first down button 6, the second up button 13 and the second down button 14 respectively via the wire.

[0030] In use, this invention first sets a first ascending range 'a' (a > 0) inside the control terminal 8, controlled by the first ascending button 5 and the first descending button 6. Then, a second ascending range 'b' (b ≥ a) is set. Before operation, an external power supply powers the control terminal 8 and the servo motor 9. When an elderly person needs to get up from the sofa, they support themselves with both hands on the two armrests 4 and press the first ascending button 5. The control terminal 8 then controls the servo motor 9, which drives the lead screw 11 to rotate. Under the action of the ball bearing nut pair, the U-shaped connecting plate 7 moves upward along the guide rail 10 and the lead screw 11, simultaneously moving the two armrests 4 upward. This upward movement of the armrests 4 supports the elderly person. If the elderly person cannot stand up by relying on the first stage of the handrail 4's upward movement, they can hold the two handle bars 12 with both hands and press the second upward button 13 to control the servo motor 9 to rotate a second time, thereby driving the handrail 4 to move upward a second time. At this time, the upward movement of the handrail 4 will help the elderly person's arms and upper body to stand up. If the upward movement is too high, the handrail 4 can be lowered by pressing the second downward button 14. By separating the thumbs from the second upward button 13 and the second downward button 14, the servo motor 9 can be stopped to ensure that the handrail 4 stops moving. After the elderly person stands up, the handrail 4 is lowered to height a by pressing the second downward button 14, and the handrail 4 is reset by pressing the first downward button 6.

[0031] The above are merely embodiments of this application and are not intended to limit the scope of this application. Various modifications and variations can be made to this application by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the scope of the claims of this application.

Claims

1. An age-friendly sofa with a support structure, comprising a main frame (1), a seat cushion (2), and a backrest (3), wherein the seat cushion (2) is installed at the inner bottom of the main frame (1), and the backrest (3) is installed at the inner rear of the main frame (1), characterized in that, The main frame (1) has two armrests (4) on its upper side, and the two armrests (4) are located on the left and right sides of the backrest (3) respectively. The back of the armrest is fixedly connected to the U-shaped connecting plate (7), and the U-shaped connecting plate (7) is set on the back of the backrest (3). A lead screw (11) is connected to the U-shaped connecting plate (7). The lead screw (11) is installed on the back of the backrest (3), and the lead screw (11) is connected to the output shaft of the servo motor (9). The armrest (4) is equipped with a handle bar (12), and a first up button (5) and a first down button (6) are respectively installed at the front end of the armrest (4). A second up button (13) and a second down button (14) are respectively installed at the lower end of the handle bar (12). The first up button (5), the first down button (6), the second up button (13) and the second down button (14) are all connected to the control terminal (8) through wires, and the control terminal (8) is connected to the servo motor (9) through wires.

2. The age-friendly sofa with a support structure according to claim 1, characterized in that, The lower side of the armrest (4) is provided with a handle groove (41), and the handle bar (12) is fixedly installed in the handle groove (41).

3. The age-friendly sofa with a support structure according to claim 1, characterized in that, The backrest (3) is also fixedly mounted with a guide rail (10), and the U-shaped connecting plate (7) is slidably connected to the backrest (3) through the guide rail (10).

4. The age-friendly sofa with a support structure according to claim 1, characterized in that, The back of the backrest (3) is also fixedly installed with a bearing seat, and the bearing shaft is rotatably connected to the upper and lower ends of the lead screw (11) through the bearing. The servo motor (9) is fixedly installed at the lower end of the bearing seat, and the output shaft of the servo motor (9) is connected to the lead screw (11).

5. An age-friendly sofa with a support structure according to claim 1, characterized in that, The U-shaped connecting plate (7) is fixedly connected to the two handrails (4) by bolts.

6. An age-friendly sofa with a support structure according to claim 1, characterized in that, The handle (12) has a hole inside for the wire to pass through.

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