Furniture with adjustable angle of seat cushion

Abstract

The application relates to a furniture capable of adjusting the inclination angle of a seat cushion, belonging to the furniture field, aiming at the problem that the fatigue improvement effect of the existing furniture is poor by only adjusting the backrest angle, and the furniture capable of adjusting the inclination angle of a seat cushion comprises a first support frame and a second support frame, a seat cushion is arranged on the first support frame, the front end of the first support frame is hinged to the second support frame through a pin, the rear end of the first support frame is provided with a sheet-shaped piece, the top end of the sheet-shaped piece is movable relative to the first support frame, the bottom end of the sheet-shaped piece moves along the second support frame, the middle section of the sheet-shaped piece is limited by a first limiting pin arranged on the second support frame, the sheet-shaped piece can swing around the first limiting pin, the first support frame is lifted or lowered, and the up-down swinging of the first support frame is realized. When the sheet-shaped piece is forced, the sheet-shaped piece swings around the first limiting pin, the top of the sheet-shaped piece drives the first support frame to be lifted or lowered, the up-down swinging of the first support frame is realized, and the adjustment of the inclination angle is realized.

Description

Technical Field

[0001] This utility model belongs to the field of furniture, and specifically relates to a piece of furniture with an adjustable seat cushion tilt angle. Background Technology

[0002] Existing sofas, chairs, and sofa beds typically feature seat cushions that support the user, but these are usually fixed at a fixed angle and often cannot be adjusted. This non-adjustable structure affects comfort: users cannot adjust the angle according to their posture habits (such as leaning back or forward), causing the lower back and back to be under constant pressure, easily leading to fatigue. This lack of comfort is even more pronounced when prolonged sitting is required. Therefore, improvements to existing furniture structures are needed. Current furniture often uses adjustable backrest angles to address fatigue, employing connecting mechanisms to support the backrest. However, when relaxing, the backrest experiences greater pressure, and if the connecting mechanism is poorly designed, it can easily become stuck, causing the adjustment to fail. Utility Model Content

[0003] To address the problem that existing furniture, which only improves fatigue by adjusting the backrest angle, is not very effective, this invention provides a piece of furniture with an adjustable seat cushion tilt angle, which improves the comfort of using the furniture by adjusting the seat cushion angle.

[0004] The technical solution adopted by this utility model is as follows: A piece of furniture with an adjustable seat cushion tilt angle includes a first support frame and a second support frame. The first support frame is provided with a seat cushion. The front end of the first support frame is hinged to the second support frame by a pin. The rear end of the first support frame is provided with a sheet-like component. The top end of the sheet-like component is movable with the first support frame. The bottom end of the sheet-like component moves back and forth along the second support frame. The middle section of the sheet-like component is limited by a first limiting pin set in the second support frame. The sheet-like component can swing around the first limiting pin to raise or lower the first support frame.

[0005] When the sheet-like component is subjected to force, it swings around the first limiting pin, causing the top of the sheet-like component to lift or lower the first support frame, thereby realizing the up-and-down swing of the first support frame and thus adjusting the tilt angle.

[0006] When subjected to force, the rear end of the first support frame may be subjected to external force first, causing the sheet-like component to move, or the bottom end of the sheet-like component may be subjected to force first, causing the rear end of the first support frame to be raised or lowered, thereby achieving the purpose of adjusting the tilt angle.

[0007] Furthermore, the sheet-like component is provided with an elongated hole along its length, and the first limiting pin is inserted into the elongated hole. The top and bottom ends of the sheet-like component are connected to the first support frame and the second support frame, respectively. The sheet-like component is a movable part that swings around the limiting member, remaining in an upright or inclined state, thereby providing vertical support when the first support frame is raised or oblique support when the first support frame is lowered.

[0008] Furthermore, the top of the sheet-like component has a pulley, the first support frame is provided with a groove, the groove is arranged along the front-rear direction of the first support frame, and the pulley is disposed in the groove.

[0009] Furthermore, the bottom end of the sheet-like component is connected to a protruding second limiting pin, and the second support frame is provided with a limiting groove along the front-rear direction of the second support frame. The second limiting pin is constrained by the limiting groove. The limiting groove restricts the movement direction of the second limiting pin.

[0010] Furthermore, a sliding rod is provided within the limiting groove, with both ends of the sliding rod bent to form two linkage ends. The second limiting pin is connected to the sliding rod, and a limiting hole is provided within the limiting groove, through which the linkage ends pass. The limiting hole limits the forward and backward movement distance of the sliding rod.

[0011] Furthermore, the limiting hole is provided along the front-rear direction of the second support frame. The limiting hole and the limiting groove are oriented in the same direction, so that the slide rod will not get stuck when moving in the limiting groove, ensuring smooth and easy movement.

[0012] Furthermore, the second support frame is also provided with a return spring, which is linked with the second limit pin to provide return power for the sheet-like component.

[0013] Furthermore, a push-pull frame that can move back and forth along the second support frame is provided below the second support frame. The push-pull frame is linked with the slide rod by touching two linkage ends.

[0014] Furthermore, the bottom of the push-pull frame is equipped with rollers. The rollers can reduce the resistance when the push-pull frame moves, ensuring that the push-pull frame moves smoothly and easily.

[0015] The beneficial effects of this utility model are as follows: This application is a piece of furniture with an adjustable seat cushion tilt angle. One end of the first support frame with the seat cushion is provided with a first limiting pin, and the other end is connected to the second support frame through a plate-like member. When subjected to external force, the plate-like member swings around the first limiting pin, causing the top of the plate-like member to lift or lower the first support frame, thereby realizing the up-and-down swing of the first support frame and thus achieving the adjustment of the tilt angle. Attached Figure Description

[0016] Figure 1 This is a side view of the furniture with an adjustable seat cushion tilt angle, as shown in the embodiment. Figure 2 A schematic diagram of the overall structure of the furniture with an adjustable seat cushion tilt angle, as shown in the embodiment; Figure 3 This is a schematic diagram of the limiting groove structure; Figure 4 This is a schematic diagram of the slide bar structure; Figure 5 This is a schematic diagram of the sheet-like component. Among them, 1-first support frame; 11-seat cushion; 12-pin; 13-slide groove; 2-second support frame; 21-first limiting pin; 22-limiting groove; 221-limiting hole; 23-slide rod; 231-linkage end; 24-return spring; 3-plate-shaped piece; 31-elongated hole; 32-pulley; 33-second limiting pin; 4-push-pull frame; 41-roller. Detailed Implementation

[0017] The technical solutions of the embodiments of this utility model will be explained and described below with reference to the accompanying drawings. However, the following embodiments are only preferred embodiments of this utility model and not all of them. Other embodiments obtained by those skilled in the art based on the embodiments in the implementation methods without creative effort are all within the protection scope of this utility model.

[0018] A type of furniture with an adjustable seat cushion tilt angle, such as Figures 1 to 5 As shown, it includes a first support frame 1 and a second support frame 2. The first support frame 1 is provided with a cushion 11. The front end of the first support frame 1 is hinged to the second support frame 2 by a pin 12. The rear end of the first support frame 1 is provided with a sheet-like member 3. The top end of the sheet-like member 3 is movable with the first support frame 1. The bottom end of the sheet-like member 3 moves back and forth along the second support frame 2. The middle section of the sheet-like member 3 is limited by a first limiting pin 21 set in the second support frame 2. The sheet-like member 3 can swing around the first limiting pin 21 to raise or lower the first support frame 1.

[0019] When the sheet-like part 3 is subjected to force, it swings around the first limiting pin 21, causing the top of the sheet-like part 3 to lift or lower the first support frame 1, thereby realizing the up-and-down swing of the first support frame 1 and thus adjusting the tilt angle.

[0020] The sheet-like component 3 has an elongated hole 31, which is arranged along the length of the sheet-like component 3. The first limiting pin 21 is inserted into the elongated hole 31. The top and bottom ends of the sheet-like component 3 are connected to the first support frame 1 and the second support frame 2, respectively. The sheet-like component 3 is a movable part that swings around the first limiting pin 21, and is in an upright or inclined state, thereby providing vertical support when the first support frame 1 is raised or oblique support when the first support frame 1 is lowered.

[0021] The top of the sheet-like component 3 has a pulley 32, and the first support frame 1 is provided with a sliding groove 13. The sliding groove 13 is arranged along the front-back direction of the first support frame 1, and the pulley 32 is disposed in the sliding groove 13.

[0022] The bottom end of the sheet-like component 3 is connected to a protruding second limiting pin 33. The second support frame 2 is provided with a limiting groove 22 along the front-rear direction of the second support frame 2. The second limiting pin 33 is constrained by the limiting groove 22. The limiting groove 22 restricts the movement direction of the second limiting pin 33.

[0023] A sliding rod 23 is provided within the limiting groove 22. The two ends of the sliding rod 23 are bent to form two linkage ends 231. The second limiting pin 33 is connected to the sliding rod 23. A limiting hole 221 is provided within the limiting groove 22, and the linkage ends 231 pass through the limiting hole 221. The limiting hole 221 limits the forward and backward movement distance of the sliding rod 23. The limiting hole 221 is located along the forward and backward direction of the second support frame 2.

[0024] A first limiting pin 21, connected to the first support frame 1, serves as a fixed shaft and is positioned within an elongated hole 31 at the middle section of the sheet-like component 3. When the sheet-like component 3 moves, the elongated hole 31 slides around the first limiting pin 21. When the sheet-like component 3 has a large tilt angle (i.e., the top and bottom ends of the sheet-like component 3 are far apart in the vertical direction), the first support frame 1 can be lowered. When the sheet-like component 3 has a small tilt angle (i.e., the top and bottom ends of the sheet-like component 3 are close together in the vertical direction), the first support frame 1 can be lowered. When the frame 1 is lifted, during the movement of the sheet-like part 3, the pulley 32 at its top moves back and forth along the sliding groove 13 on the first support frame 1. The second limiting pin 33 at the bottom is connected to the sliding rod 23. The back and forth movement of the sliding rod 23 is limited by the length of the limiting hole 221, and thus the movement distance of the bottom end of the sheet-like part 3 is also limited. During the movement, the movement of the middle section and the bottom end of the sheet-like part 3 is limited. Therefore, the pulley 32 at the top of the sheet-like part 3 will not easily come out of the limiting groove 22, thus ensuring the stability of the structure.

[0025] The second support frame 2 is also equipped with a return spring 24, which is linked with the second limiting pin 33 to provide return force for the sheet-like component 3. When the sheet-like component 3 supports the first support frame 1, the entire structure is in an unstable state. The return spring 24 can pull the sheet-like component 3 and provide a certain resistance, so that the sheet-like component 3 provides a stable triangular support when supported. In this way, even if the first support frame 1 is in the supported state, the force on its rear end will not easily cause the first support frame 1 to fall back.

[0026] Below the second support frame 2, there is a push-pull frame 4 that can move back and forth along the second support frame 2. The push-pull frame 4 is linked to the slide rod 23 by touching two linkage ends 231. The bottom of the push-pull frame 4 is provided with rollers 41. The push-pull frame 4 can be equipped with a storage box with storage function, or it can be a lifting frame that can be combined with the second support frame 2 to form a sofa bed. In this embodiment, it is preferred to be a lifting frame that can be assembled into a sofa bed. In order to reduce the difficulty and resistance of pulling out, rollers 41 are provided at the bottom of the push-pull frame 4. When the push-pull frame 4 is pulled out from the bottom of the second support frame 2, it will touch the linkage end 231 of the slide rod 23 on the front side, pulling the slide rod 23 forward, thereby driving the bottom end of the sheet-like part 3 to move forward. The top end of the sheet-like part 3 will support the first support. When the frame 1 is lifted, the rear end and the front end of the first support frame 1 are at the same height. When the push-pull frame 4 is completely retracted to the bottom of the second support frame 2, it will touch the linkage end 231 of the slide rod 23 on the rear side, pulling the slide rod 23 backward, which in turn drives the bottom end of the plate 3 to move backward. The top end of the plate 3 releases the first support frame 1, so that the rear end of the first support frame 1 is lower than the front end of the first support frame 1. In this way, the push-pull frame 4 and the first support frame 1 form a linkage structure, which is convenient to control.

[0027] The above description is merely a specific embodiment of this utility model, but the protection scope of this utility model is not limited thereto. Those skilled in the art should understand that this utility model includes, but is not limited to, the content described in the accompanying drawings and the specific embodiments above. Any modifications that do not depart from the functional and structural principles of this utility model will be included within the scope of the claims.

Claims

1. A type of furniture with an adjustable seat cushion tilt angle, characterized in that, The system includes a first support frame (1) and a second support frame (2). The first support frame (1) is provided with a cushion (11). The front end of the first support frame (1) is hinged to the second support frame (2) by a pin (12). The rear end of the first support frame (1) is provided with a sheet (3). The top end of the sheet (3) is movable with the first support frame (1). The bottom end of the sheet (3) moves back and forth along the second support frame (2). The middle section of the sheet (3) is limited by a first limiting pin (21) provided on the second support frame (2). The sheet (3) can swing around the first limiting pin (21) to raise or lower the first support frame (1).

2. The furniture with an adjustable seat cushion tilt angle according to claim 1, characterized in that, The sheet-like part (3) is provided with an elongated hole (31), which is arranged along the length direction of the sheet-like part (3), and the first limiting pin (21) is inserted into the elongated hole (31).

3. The furniture with an adjustable seat cushion tilt angle according to claim 1, characterized in that, The top of the sheet-like part (3) has a pulley (32), and the first support frame (1) is provided with a groove (13). The groove (13) is arranged along the front and rear direction of the first support frame (1), and the pulley (32) is arranged in the groove (13).

4. The furniture with an adjustable seat cushion tilt angle according to claim 1, characterized in that, The bottom end of the sheet (3) is connected to a protruding second limiting pin (33), and the second support frame (2) is provided with a limiting groove (22) along the front and rear direction of the second support frame (2), and the second limiting pin (33) is limited by the limiting groove (22).

5. The furniture with an adjustable seat cushion tilt angle according to claim 4, characterized in that, The limiting groove (22) is provided with a sliding rod (23), the two ends of the sliding rod (23) are bent to form two linkage ends, the second limiting pin (33) is connected to the sliding rod (23), the limiting groove (22) is provided with a limiting hole, and the linkage end passes through the limiting hole.

6. The furniture with an adjustable seat cushion tilt angle according to claim 5, characterized in that, The limiting hole is set along the front and rear direction of the second support frame (2).

7. The furniture with an adjustable seat cushion tilt angle according to claim 5, characterized in that, The second support frame (2) is also provided with a return spring (24), which is linked with the second limit pin (33).

8. The furniture with an adjustable seat cushion tilt angle according to claim 5, characterized in that, Below the second support frame (2) is a push-pull frame (4) that can move back and forth along the second support frame (2). The push-pull frame (4) is linked with the slide rod (23) by touching two linkage ends.

9. The furniture with an adjustable seat cushion tilt angle according to claim 8, characterized in that, The bottom of the push-pull bracket (4) is provided with rollers (41).

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