Left-back driving structure of ergonomic sofa

Abstract

The utility model discloses an ergonomic sofa back-leaning driving structure which comprises a bottom frame, and the bottom frame is used for placing a sofa; the moving device is used for moving the backrest; the adjusting device is fixedly connected to the surface of the backrest and is used for adjusting the sofa; the utility model relates to the technical field of sofas. The device is provided with a moving device, according to different distances between a human body and a backrest, a moving seat on the backrest is pushed by the back of the human body, so that a ball rod on the moving seat drives a sliding block to slide in the inner wall of a guide rail, and the sliding block stops sliding until the position of a person sitting on the sofa is not changed; the compression spring drives the ball rod on the sliding block to slide, so that the ball rod drives the backrest on the movable seat to reset, the distance between the human body and the sofa backrest is adjusted, the human body and the sofa backrest are tightly attached, use by personnel is facilitated, and the purpose of leaning backwards is achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of sofas, in particular to a reclining driving structure of an ergonomic sofa. Background Art

[0002] Ergonomics is a science about the coordination between technology and people. It has often appeared on the promotional pages of furniture companies in recent years. People-oriented is the core of ergonomics in sofa design, that is, the design of sofas must have three basic principles: comfort, functionality and safety. The ergonomic concept in sofa design requires that the person using the product be the starting point of product design, and that the product's appearance, color, performance, etc. are designed around the human body. The ergonomic sofa reclining drive structure can be used to adjust the human sitting posture and relieve human fatigue.

[0003] However, in the prior art, when a person uses the conventional ergonomic sofa reclining drive structure, the sofa cushion sinks to different degrees when the person reclines, resulting in different distances between the person and the backrest. If the distance between the backrest and the person is not adjusted in time, the comfort of the person using the sofa will be affected. Utility Model Content

[0004] In view of the deficiencies in the prior art, the technical solution adopted by the utility model to solve the technical problems is: an ergonomic sofa reclining drive structure, comprising a base frame, the base frame is used to place the sofa; the outer surface of the moving device is rotatably connected to a backrest, and the moving device is used to move the backrest; the adjusting device is fixedly connected to the surface of the backrest, and the adjusting device is used to adjust the sofa; the moving device comprises a moving seat, the outer surface of the moving seat is rotatably connected to the outer surface of the backrest, the outer surface of the moving seat is fixedly connected to a ball rod, the outer surface of the ball rod is slidably connected to a guide rail, the outer surface of the guide rail is fixedly connected to the inner surface of the support plate, the base frame is fixed to the ground, a person sits on the cushion on the support plate, and pushes the moving seat on the backrest through the back of the human body, so that the ball rod on the moving seat drives the slider to slide in the inner wall of the guide rail.

[0005] Preferably, a support plate is fixedly connected to the upper surface of the base frame, a seat cushion is fixedly connected to the inner surface of the support plate, an outer surface of the seat cushion is fixedly connected to the outer surface of the moving device, the outer surface of the moving device is rotatably connected to the outer surface of the backrest, and the outer surface of the backrest is fixedly connected to the outer surface of the adjusting device. According to the different depths of the seat cushion sunk by the person, the distance between the human body and the backrest is different, and the close fit between the human body and the sofa backrest is adjusted by the moving device.

[0006] Preferably, a folding rod is fixedly connected to the inner surface of the base frame, a tension spring is fixedly connected to the outer surface of the folding rod, a matching rod is fixedly connected to the upper surface of the tension spring, the outer surface of the folding rod is fixedly connected to the outer surface of the backrest, a sliding groove is provided in the wall of the folding rod, the inner wall of the sliding groove is slidably connected to the outer wall of the matching rod, when the human body leans back on the sofa and presses the backrest downward, the backrest drives the matching rod on the folding rod to slide in the sliding groove, so that the backrest moves with the person, and the backrest is reset by the tension spring, so that the backrest can be restored to its original appearance after use.

[0007] Preferably, the inner wall of the guide rail is slidably connected with a slider, the outer surface of the slider contacts the outer surface of the ball rod, the outer surface of the slider is fixedly connected with a compression spring, the outer surface of the compression spring is slidably connected to the inner surface of the guide rail, the outer surface of the movable seat is fixedly connected with a winding wheel, the outer surface of the winding wheel is rotatably connected with a rubber plate, and when the movable seat moves, the movable seat drives the winding wheel to flatten the rubber plate, and the flattened rubber plate has a buffering effect on the seat cushion. The slider stops sliding after the position of the person sitting on the sofa remains unchanged, and the slider compresses the compression spring in the guide rail. When the human body leaves the seat cushion, the compression spring drives the ball rod on the slider to slide, so that the ball rod drives the backrest on the movable seat to reset, which is convenient for people to use.

[0008] Preferably, the adjustment device includes a connecting box, the outer surface of the connecting box is fixedly connected to the outer surface of the backrest, the outer surface of the connecting box is rotatably connected to a toothed ring, the outer surface of the toothed ring is meshed with a spur gear, and the outer surface of the spur gear is fixedly connected to a pillow. By rotating the toothed ring in the connecting box, the toothed ring on the adjustment device drives the pillow on the spur gear to rotate, thereby achieving adjustment of different rotation angles of the pillow and increasing the comfort of the sofa.

[0009] The beneficial effects of the utility model are as follows:

[0010] 1. The utility model provides a moving device. When a person sits on a cushion on a support plate, the person pushes the moving seat on the backrest through the back of the person according to the different distances between the person and the backrest, so that the ball bar on the moving seat drives the slider to slide in the inner wall of the guide rail until the position of the person sitting on the sofa remains unchanged, and the slider stops sliding. When the person leaves the cushion, the compression spring drives the ball bar on the slider to slide, so that the ball bar drives the backrest on the moving seat to reset, thereby adjusting the distance between the person and the sofa backrest, so that the person and the sofa backrest fit closely, which is convenient for the person to use.

[0011] 2. The utility model is provided with an adjustment device. When a human body leans back on the sofa, the backrest is pressed downward, and the backrest drives the matching rod on the folding rod to slide in the slide groove, so that the backrest moves with the person. By rotating the toothed ring in the connecting box, the toothed ring drives the pillow on the spur gear to rotate, thereby adjusting the pillow to different rotation angles and improving the comfort of the sofa. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is the front view of the utility model;

[0013] Figure 2 It is a cross-sectional view of the utility model;

[0014] Figure 3 It is a schematic diagram of the structure of the backrest and its exterior of the utility model;

[0015] Figure 4 It is a schematic diagram of the structure of the mobile device of the utility model and its exterior;

[0016] Figure 5 It is a schematic diagram of the structure of the utility model at A;

[0017] Figure 6 It is a structural schematic diagram of the regulating device of the utility model.

[0018] In the figure: 1. base frame; 2. support plate; 3. seat cushion; 4. moving device; 5. backrest; 6. adjustment device; 7. folding rod; 8. tension spring; 9. matching rod; 10. slide groove; 11. moving seat; 12. ball rod; 13. guide rail; 14. slider; 15. compression spring; 16. winding wheel; 17. rubber plate; 18. connecting box; 19. tooth ring; 20. spur gear; 21. pillow. DETAILED DESCRIPTION

[0019] The present invention is further described in detail below in conjunction with the accompanying drawings and specific embodiments. The embodiments of the present invention are provided for the purpose of illustration and description, and are not intended to be exhaustive or to limit the present invention to the disclosed forms. Many modifications and variations are obvious to those of ordinary skill in the art. The embodiments are selected and described in order to better illustrate the principles and practical applications of the present invention, and to enable those of ordinary skill in the art to understand the present invention and design various embodiments with various modifications suitable for specific purposes. Example

[0020] See also Figure 1 - Figure 6The utility model provides a technical solution: an ergonomic sofa reclining drive structure, comprising a base frame 1, the base frame 1 is used to place the sofa; the outer surface of a moving device 4 is fixedly connected with a backrest 5, the moving device 4 is used to move the backrest; an adjusting device 6 is fixedly connected to the surface of the backrest 5, the adjusting device 6 is used to adjust the sofa; the moving device 4 comprises a moving seat 11, the outer surface of the moving seat 11 is rotatably connected to the outer surface of the backrest 5, the outer surface of the moving seat 11 is fixedly connected with a ball rod 12, the outer surface of the ball rod 12 is slidably connected with a guide rail 13, the outer surface of the guide rail 13 is fixedly connected to the inner surface of a support plate 2, the upper surface of the base frame 1 is fixedly connected with a support plate 2, the inner surface of the support plate 2 is fixedly connected with a seat cushion 3, the outer surface of the seat cushion 3 is fixedly connected to the outer surface of the moving device 4, the outer surface of the moving device 4 is rotatably connected to the outer surface of the backrest 5, the outer surface of the backrest 5 is fixedly connected to the outer surface of the adjusting device 6, the inner surface of the base frame 1 is fixedly connected with a folding rod 7, the outer surface of the folding rod 7 is fixedly connected with a tension spring 8, and the upper surface of the tension spring 8 is fixedly connected with a matching rod 9

[0021] The outer surface of the folding rod 7 is fixedly connected to the outer surface of the backrest 5, a slide groove 10 is opened in the wall of the folding rod 7, the inner wall of the slide groove 10 is slidably connected to the outer wall of the matching rod 9, the inner wall of the guide rail 13 is slidably connected with a slider 14, the outer surface of the slider 14 contacts the outer surface of the ball rod 12, the outer surface of the slider 14 is fixedly connected with a compression spring 15, the outer surface of the compression spring 15 is slidably connected to the inner surface of the guide rail 13, the outer surface of the movable seat 11 is fixedly connected with a winding wheel 16, the outer surface of the winding wheel 16 is rotatably connected with a rubber plate 17, the adjusting device 6 includes a connecting box 18, the outer surface of the connecting box 18 is fixedly connected to the outer surface of the backrest 5, the outer surface of the connecting box 18 is rotatably connected with a toothed ring 19, the outer surface of the toothed ring 19 is meshed with a spur gear 20, and the outer surface of the spur gear 20 is fixedly connected with a pillow 21.

[0022] Working principle:

[0023] When in use, the base frame 1 is fixed on the ground, and a person sits on the cushion 3 on the support plate 2. The distance between the human body and the backrest 5 is different according to the depth of the person's depression of the cushion 3. The close fit between the human body and the sofa backrest 5 is adjusted by the moving device 4. The moving seat 11 on the backrest 5 is pushed by the back of the human body, so that the ball rod 12 on the moving seat 11 drives the slider 14 to slide in the inner wall of the guide rail 13 until the position of the person sitting on the sofa remains unchanged. The slider 14 stops sliding, and the slider 14 compresses the compression spring 15 in the guide rail 13. When the human body leaves the cushion 3, the compression spring 15 drives the ball rod 12 on the slider 14 to slide, so that the ball rod 12 drives the backrest 5 on the moving seat 11 to reset;

[0024] When the movable seat 11 moves, the movable seat 11 drives the winding wheel 16 to flatten the rubber sheet 17. The flattened rubber sheet 17 has a buffering effect on the seat cushion 3. When the human body leans back on the sofa, the backrest 5 is pressed downward, and the backrest 5 drives the matching rod 9 on the folding rod 7 to slide in the slide groove 10, so that the backrest 5 moves with the person. The backrest 5 is reset by the tension spring 8, so that the backrest 5 can be restored to its original state after use. In addition, by rotating the toothed ring 19 in the connecting box 18, the toothed ring 19 on the adjusting device 6 drives the pillow 21 on the spur gear 20 to rotate.

[0025] Obviously, the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field and related fields without creative work should fall within the scope of protection of the present invention. Structures, devices and operating methods not specifically described and explained in the present invention shall be implemented according to conventional means in the field unless otherwise specified and limited.

Claims

1. An ergonomic sofa reclining drive structure, comprising: A bottom frame (1), wherein the bottom frame (1) is used to place the sofa; A moving device (4), the outer surface of the moving device (4) being rotatably connected to a backrest (5), and the moving device (4) being used to move the backrest (5); An adjusting device (6), the adjusting device (6) being fixedly connected to the surface of the backrest (5), and the adjusting device (6) being used to adjust the sofa; It is characterized in that The moving device (4) comprises a moving seat (11), the outer surface of the moving seat (11) being rotatably connected to the outer surface of the backrest (5), the outer surface of the moving seat (11) being fixedly connected to a ball rod (12), the outer surface of the ball rod (12) being slidably connected to a guide rail (13), and the outer surface of the guide rail (13) being fixedly connected to the inner surface of the support plate (2).

2. The ergonomic sofa reclining drive structure according to claim 1, characterized in that: The upper surface of the base frame (1) is fixedly connected to a support plate (2), the inner surface of the support plate (2) is fixedly connected to a seat cushion (3), the outer surface of the seat cushion (3) is fixedly connected to the outer surface of a moving device (4), the outer surface of the moving device (4) is rotatably connected to the outer surface of a backrest (5), and the outer surface of the backrest (5) is fixedly connected to the outer surface of an adjustment device (6).

3. The ergonomic sofa reclining drive structure according to claim 2, characterized in that: A folding rod (7) is fixedly connected to the inner surface of the base frame (1), a tension spring (8) is fixedly connected to the outer surface of the folding rod (7), and a matching rod (9) is fixedly connected to the upper surface of the tension spring (8).

4. The ergonomic sofa reclining drive structure according to claim 3, characterized in that: The outer surface of the folding rod (7) is fixedly connected to the outer surface of the backrest (5), a sliding groove (10) is provided in the wall of the folding rod (7), and the inner wall of the sliding groove (10) is slidably connected to the outer wall of the matching rod (9).

5. The ergonomic sofa reclining drive structure according to claim 1, characterized in that: The inner wall of the guide rail (13) is slidably connected to a slider (14), the outer surface of the slider (14) contacts the outer surface of the club (12), the outer surface of the slider (14) is fixedly connected to a compression spring (15), the outer surface of the compression spring (15) is slidably connected to the inner surface of the guide rail (13), the outer surface of the movable seat (11) is fixedly connected to a winding wheel (16), and the outer surface of the winding wheel (16) is rotatably connected to a rubber plate (17).

6. The ergonomic sofa reclining drive structure according to claim 1, characterized in that: The adjustment device (6) comprises a connection box (18), the outer surface of the connection box (18) being fixedly connected to the outer surface of the backrest (5), the outer surface of the connection box (18) being rotatably connected to a toothed ring (19), the outer surface of the toothed ring (19) being meshed with a spur gear (20), and the outer surface of the spur gear (20) being fixedly connected to a pillow (21).

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