A sofa chair with tilting function

Abstract

The utility model provides a sofa chair with inclination function, including base, be equipped with the seat board on the base, be equipped with the backrest on the base and be located seat board one side rotation, be equipped with two pivot on the base rotation, the end part of seat board and backrest is close to each other respectively fixed in two pivot, such setting can effectively make seat board and backrest rotate on the base, the pivot makes through the bearing and base rotation connection, the handrail board is equipped on the base and is located backrest both sides, the handrail board, seat board and backrest all install the support sponge, improve the comfort degree when using. This application has the advantage that the comfort degree is higher when leaning back and lying.

Description

Technical Field

[0001] This utility model relates to the field of sofa and chair design technology, and in particular to a sofa and chair with a tilting function. Background Technology

[0002] Sofas and chairs are primarily seating furniture, and they typically offer a higher level of comfort compared to other types of chairs.

[0003] The prior art, such as the utility model patent with publication number CN218279123U entitled "A Sofa Chair", includes a backrest and a seat, which are installed together, as well as an auxiliary standing mechanism, an armrest mechanism, and an electronic device support mechanism.

[0004] Similar to the sofa chairs mentioned above, although they have a backrest tilting function, when the backrest is tilted at a certain angle, the change in the user's back support position can easily cause the user's body to slide down after the backrest is tilted, resulting in discomfort such as the lower back being unsupported and insufficient leg support, which seriously affects the comfort of lying down. Utility Model Content

[0005] To address the shortcomings of existing technologies, this utility model provides a sofa chair with a tilting function, which solves the technical problem that existing sofa chairs, when the backrest is tilted, easily cause the user's body to slide down, affecting the comfort of lying down.

[0006] The above-mentioned technical objective of this utility model is achieved through the following technical solution: A sofa chair with a tilting function includes a base, a seat rotatably mounted on the base, a backrest rotatably mounted on the base and located on one side of the seat, a tilting component hinged on the base and located on the side of the backrest facing away from the seat, a lifting member located on the bottom of the base and located on the side of the seat away from the backrest, and a drive motor mounted on the base for driving the tilting component to tilt the backrest and simultaneously driving the lifting member to lift the seat.

[0007] The present invention is further configured such that: two rotating shafts are rotatably provided on the base, and the ends of the seat plate and the backrest plate that are close to each other are respectively fixed on the two rotating shafts.

[0008] The present invention is further configured such that: the tilting component includes a tilting frame and a driving block; the tilting frame is hinged to the side of the backrest facing away from the seat; one end of the driving block is hinged to the side of the tilting frame away from the backrest; a horizontal connecting block is slidably passed through the base; one end of the connecting block is fixedly connected to the driving block; a rack is provided on one side of the connecting block; a vertical driving rod is rotatably provided on the base; and a gear that meshes with the rack is fixedly provided on the driving rod.

[0009] The present invention is further configured such that: a worm gear is rotatably provided on the base, a worm wheel is fixedly provided on the drive rod, a first pulley is provided on the output end of the drive motor and the worm gear respectively, and a first belt is sleeved between the two first pulleys.

[0010] The present invention is further configured such that: the lifting member includes a fixed rod and a cam, the fixed rod is rotatably mounted on the base, the cam is fixed on the fixed rod, and the side wall of the cam slides against the bottom of the seat plate.

[0011] The present invention is further configured such that: a second pulley is provided between the output end of the drive motor and the fixed rod, and a second belt is sleeved between the two second pulleys.

[0012] The present invention is further provided with armrests on both sides of the base and the backrest.

[0013] Compared to the beneficial effects achieved by existing technologies: This application achieves synchronized movement of the backrest tilting and the seat lifting by using a single drive motor to control the tilting component and the lifting component. This design ensures that when the user activates the tilting function, the tilting of the backrest provides support for the back and head, while the timely lifting of the front of the seat effectively supports the thighs and prevents the body from sliding down the seat. This ensures that the human body is always evenly and stably supported during the transition from a sitting to a lying position, effectively improving the comfort of lying down and the overall user experience of the product. Attached Figure Description

[0014] Figure 1 This is a schematic cross-sectional view of the overall structure of this utility model. Figure 2 for Figure 1 Enlarged schematic diagram of the structure at point A; Figure 3 for Figure 1 Enlarged schematic diagram of the structure at point B.

[0015] In the above attached figures: 1. Base; 2. Seat plate; 3. Backrest plate; 4. Drive motor; 5. Rotating shaft; 6. Inclined frame; 7. Drive block; 8. Connecting block; 9. Rack; 10. Drive rod; 11. Gear; 12. Worm gear; 13. Worm wheel; 14. First pulley; 15. First belt; 16. Fixed rod; 17. Cam; 18. Second pulley; 19. Second belt; 20. Armrest plate. Detailed Implementation

[0016] The technical solution of this utility model will be further described below with reference to the accompanying drawings and embodiments.

[0017] Example: Reference Figures 1-3This application discloses a reclining sofa chair, comprising a base 1, a seat 2 rotatably mounted on the base 1, and a backrest 3 rotatably mounted on the base 1 and located on one side of the seat 2. Two pivots 5 are rotatably mounted on the base 1, and the ends of the seat 2 and backrest 3 close to each other are fixed to the two pivots 5. This arrangement effectively allows the seat 2 and backrest 3 to rotate on the base 1. The pivots 5 are rotatably connected to the base 1 via bearings. Armrests 20 are provided on both sides of the backrest on the base 1. Supporting foam is installed on the armrests 20, the seat 2, and the backrest 3 to improve comfort during use.

[0018] like Figure 1 and Figure 2 As shown, a tilting assembly is hinged to the base 1 on the side of the backrest 3 facing away from the seat 2. The tilting assembly includes a tilting frame 6 and a long, narrow drive block 7. The tilting frame 6 is hinged to the side of the backrest 3 facing away from the seat 2 and is C-shaped, with both ends connected to one side of the backrest 3. One end of the drive block 7 is hinged to the side of the tilting frame 6 away from the backrest 3. All the hinges are connected via a shaft and a rotatable bearing on the shaft. A horizontal, long, narrow connecting block 8 slides through the base 1. One end of the connecting block 8 is fixed to the drive block 7. A rack 9 is provided on one side of the connecting block 8. A vertical drive rod 10 is rotatably mounted on the base 1, and a gear 11 that meshes with the rack 9 is fixed on the drive rod 10. The rotation of the drive rod 10 and gear 11 drives the rack 9 and connecting block 8 to slide horizontally on the base 1, further moving the tilting frame 6 and the backing plate 3, causing the backing plate 3 to rotate and tilt along the shaft 5. Multiple sets of drive rods 10 and connecting blocks 8 can be used to make the backing plate 3 more stable when tilted. A drive motor 4 is provided on the base 1, and a worm gear 12 is rotatably mounted on the base 1. A worm wheel 13 is fixed on the drive rod 10. First pulleys 14 are respectively provided on the output end of the drive motor 4 and the worm gear 12, and a first belt 15 is fitted between the two first pulleys 14. This arrangement effectively drives the worm gear 12 to rotate via the drive motor 4, the first pulleys 14, and the first belt 15, further driving the worm wheel 13 and the drive rod 10 to rotate. The reverse locking principle between the worm wheel 13 and the worm gear 12 also effectively prevents the backing plate 3 from rotating without the drive of the drive motor 4.

[0019] like Figure 1 and Figure 3As shown, a lifting member is provided on the bottom of the base 1, on the side of the seat 2 away from the backrest 3. The lifting member includes a fixed rod 16 and a cam 17. The fixed rod 16 is rotatably mounted on the base 1 via a bearing, and the cam 17 is fixed to the fixed rod 16. The side wall of the cam 17 slides against the bottom of the seat 2. A second pulley 18 is provided between the output end of the drive motor 4 and the fixed rod 16, and a second belt 19 is sleeved between the two second pulleys 18. This arrangement can effectively drive the fixed rod 16 to rotate through the drive motor 4, the two second pulleys 18, and the second belt 19, and lift the seat 2 through the cam 17. The drive motor 4 can be controlled by installing relevant control components on the sofa chair.

[0020] Working principle: When the drive motor 4 is started, the worm gear 12 is driven to rotate via the first pulley 14 and the first belt 15, which in turn drives the meshing worm wheel 13 to rotate, thereby causing the vertical drive rod 10 and its gear 11 to rotate. The gear 11 meshes with the rack 9 on the side of the connecting block 8, converting the rotational motion into the horizontal linear motion of the connecting block 8. The connecting block 8 pushes the drive block 7, which in turn pulls the backrest 3 via the tilting frame 6, causing it to tilt backward around its own axis of rotation 5. At the same time, the fixed rod 16 and its cam 17 are driven to rotate via the second pulley 18 and the second belt 19. During the rotation, the outer contour of the cam 17 gradually rises and slides against the bottom of the seat plate 2, thereby forcing the seat plate 2 to rotate around its own axis of rotation 5, thus lifting the front end. This simultaneously achieves the backward tilting of the backrest 3 and the upward lifting of the front of the seat plate 2, allowing the user to smoothly and comfortably transition from a sitting posture to a reclining posture.

[0021] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model and are not intended to limit it. Although this utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of this utility model without departing from the spirit and scope of the technical solutions of this utility model, and all such modifications or substitutions should be covered within the scope of the claims of this utility model.

Claims

1. A sofa chair with a tilting function, comprising a base (1), characterized in that: A seat plate (2) is rotatably provided on the base (1). A backrest plate (3) is rotatably provided on the base (1) and on one side of the seat plate (2). An tilting component is hinged on the base (1) and on the side of the backrest plate (3) facing away from the seat plate (2). A lifting component is provided at the bottom of the base (1) and on the side of the seat plate (2) away from the backrest plate (3). A drive motor (4) is provided on the base (1) for driving the tilting component to tilt the backrest plate (3) and simultaneously driving the lifting component to lift the seat plate (2).

2. A sofa chair with a tilting function according to claim 1, characterized in that: The base (1) is provided with two rotating shafts (5), and the ends of the seat plate (2) and the backrest plate (3) that are close to each other are respectively fixed on the two rotating shafts (5).

3. A sofa chair with a tilting function according to claim 1, characterized in that: The tilting assembly includes a tilting frame (6) and a drive block (7). The tilting frame (6) is hinged to the side of the backrest (3) facing away from the seat plate (2). One end of the drive block (7) is hinged to the side of the tilting frame (6) away from the backrest (3). A horizontal connecting block (8) is slidably passed through the base (1). One end of the connecting block (8) is fixedly connected to the drive block (7). A rack (9) is provided on one side of the connecting block (8). A vertical drive rod (10) is rotatably provided on the base (1). A gear (11) that meshes with the rack (9) is fixed on the drive rod (10).

4. A sofa chair with a tilting function according to claim 3, characterized in that: A worm gear (12) is rotatably mounted on the base (1), a worm wheel (13) is fixedly mounted on the drive rod (10), and a first pulley (14) is respectively mounted on the output end of the drive motor (4) and the worm gear (12). A first belt (15) is sleeved between the two first pulleys (14).

5. A sofa chair with a tilting function according to claim 1, characterized in that: The lifting component includes a fixed rod (16) and a cam (17). The fixed rod (16) is rotatably mounted on the base (1), and the cam (17) is fixed on the fixed rod (16). The side wall of the cam (17) slides against the bottom of the seat plate (2).

6. A sofa chair with a tilting function according to claim 5, characterized in that: The output end of the drive motor (4) and the fixed rod (16) are respectively provided with a second pulley (18), and a second belt (19) is sleeved between the two second pulleys (18).

7. A sofa chair with a tilting function according to claim 1, characterized in that: Armrests (20) are provided on both sides of the base (1) and the backrest.

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