A multi-purpose furniture chair

Abstract

The utility model relates to furniture technology field discloses a multipurpose furniture chair, including support leg, the support leg top fixedly connected with the cushion, the cushion surface is provided with switching subassembly, switching subassembly includes the rotary shaft swing connection in the one side of cushion, the back cushion fixedly connected in the rotary shaft surface, the utility model discloses through rotary shaft drive gear synchronous rotation, through the meshing transmission with the toothed plate, will rotary motion convert into linear motion, and via connecting rod mechanism drive leg support synchronous unfolding or folding, this single -action trigger multi -component linkage design, completely changed traditional multi -step operation mode, make from the sitting posture to the lying posture form conversion can be done in one breath, this not only greatly promoted the fluency and operation convenience of switching process, significantly improved user experience, can let the user more when needing to rest, quickly, save the effort and obtain a complete lying support, quickly respond its rest demand.

Description

Technical Field

[0001] This utility model relates to the field of furniture technology, and in particular to a multi-purpose furniture chair. Background Technology

[0002] Chairs are common seating furniture in daily life, usually composed of multiple parts, designed to provide users with a comfortable sitting experience. Their basic structure typically includes a seat cushion, backrest, leg support, and armrests. The seat cushion provides support and comfort, the backrest supports the back, the leg support ensures the chair's stability, and the armrests provide additional support or convenience. Chairs are made of a variety of materials, such as wood, metal, plastic, fabric, and leather, and their design styles vary depending on their intended use.

[0003] Existing furniture chairs still have some problems during use. For example, although some products have the function of switching between different modes to adapt to different usage needs, such as switching between sitting and reclining positions, there are still some problems in actual use. For example, the mode switching process usually requires step-by-step operation, which is cumbersome and inconvenient. This step-by-step mode switching method not only increases the difficulty of operation for users, but may also lead to a non-smooth experience during the transition and fail to respond quickly to the user's needs.

[0004] To address these issues, we offer a multi-purpose furniture chair. Utility Model Content

[0005] The technical problem to be solved by this utility model is that the existing technology has the disadvantage of not being able to quickly and easily switch the form of furniture chairs. Therefore, we propose a multi-purpose furniture chair.

[0006] To achieve the above objectives, this application adopts the following technical solution: a multi-purpose furniture chair, including legs, with a seat cushion fixedly connected to the top of the legs; a switching component is provided on the surface of the seat cushion, the switching component including a rotating shaft movably connected to one side of the seat cushion, a backrest fixedly connected to the surface of the rotating shaft, a leg support provided on one side of the bottom of the seat cushion, a toothed plate slidably connected to the other side of the bottom of the seat cushion, and a connecting rod movably connected to one side of the toothed plate, one end of the connecting rod being movably connected to the bottom of one side of the leg support, the switching component being used to switch the form of the furniture chair; a limiting component is provided in the inner cavity of the seat cushion, the limiting component including a sliding rod fixedly connected to one side of the inner cavity of the seat cushion, a sliding sleeve slidably connected to the surface of the sliding rod, and limiting inserts fixedly connected to both sides of the sliding sleeve, the limiting component being used to lock the angle of the backrest.

[0007] Preferably, gears are fixedly connected to both sides of the surface of the rotary shaft, the gears mesh with the gear plate, and one side of the gear surface contacts the side of the limiting insert.

[0008] Preferably, the bottom sides of the seat cushion are fixedly connected to limit frames, and one side of the toothed plate surface is slidably connected to the inner cavity of the limit frame.

[0009] Preferably, a groove is provided on one side of the seat cushion, and a push handle is fixedly connected to one side of the sliding sleeve, with the surface of the push handle slidably connected to the inner cavity of the groove.

[0010] Preferably, a spring is fitted onto the surface of the slide rod, and one end of the spring is fixedly connected to one side of the slide sleeve.

[0011] Preferably, a pivot is movably connected to one side of the bottom of the seat cushion, and the surface of the pivot is fixedly connected to one side of the leg support.

[0012] Preferably, the seat cushion has uprights fixedly connected to both sides of the top, and an armrest is movably connected to one end of each upright.

[0013] The technical effects and advantages of this utility model are as follows:

[0014] 1. This utility model uses a rotating shaft to drive the gear to rotate synchronously. Through the meshing transmission with the gear plate, the rotational motion is converted into linear motion, and the leg support is driven to expand or retract synchronously via a linkage mechanism. This single-action triggering multi-component linkage design completely changes the traditional multi-step operation mode, making the transformation from sitting to lying position seamless. This not only greatly improves the smoothness and convenience of the switching process and significantly improves the user experience, but also allows users to quickly and effortlessly obtain a complete lying support when they need to rest, rapidly responding to their rest needs.

[0015] 2. This utility model utilizes a spring-preloaded sliding sleeve mechanism to ensure that the limiting insert can be tightly engaged in the gear teeth, achieving a secure lock on the rotating shaft. This precisely fixes the cushion angle and prevents safety hazards caused by accidental rebound of the cushion during use. Simultaneously, the limiting mechanism provides an intuitive and convenient one-handed unlocking operation via a sliding groove on the side of the seat cushion, allowing users to adjust their posture without bending over or performing complex movements. This balanced design of stability and convenience not only extends the product's lifespan but also makes it suitable for elderly users with mobility issues or for use in dimly lit environments, expanding the applicability of furniture chairs. Attached Figure Description

[0016] The disclosure of this utility model is illustrated with reference to the accompanying drawings. It should be understood that the drawings are for illustrative purposes only and are not intended to limit the scope of protection of this utility model. In the drawings, the same reference numerals are used to refer to the same parts:

[0017] Figure 1 A three-dimensional multi-purpose furniture chair Figure 1 .

[0018] Figure 2 A three-dimensional multi-purpose furniture chair Figure 2 .

[0019] Figure 3 This is a schematic diagram of the surface structure of the swivel shaft in a multi-purpose furniture chair.

[0020] Figure 4 An exploded view of the surface structure of the swivel shaft in a multi-purpose furniture chair.

[0021] Figure 5 An exploded view of the surface structure of the slide bar in a multi-purpose furniture chair.

[0022] Legend: 1. Support leg; 2. Seat cushion; 3. Rotary shaft; 4. Backrest cushion; 5. Leg support; 6. Gear plate; 7. Connecting rod; 8. Slide rod; 9. Slide sleeve; 10. Limiting insert; 11. Gear; 12. Limiting frame; 13. Slide groove; 14. Hand handle; 15. Spring; 16. Upright pole; 17. Armrest. Detailed Implementation

[0023] Based on the technical solution of this utility model, without changing the essential spirit of this utility model, those skilled in the art can propose various interchangeable structural methods and implementation methods. Therefore, the following detailed embodiments and accompanying drawings are merely illustrative descriptions of the technical solution of this utility model, and should not be regarded as the entirety of this utility model or as a limitation or restriction of the technical solution of this utility model.

[0024] Example 1

[0025] Please see Figures 1-5 This utility model is a multi-purpose furniture chair, including a support leg 1, with a seat cushion 2 fixedly connected to the top of the support leg 1; a switching component is provided on the surface of the seat cushion 2, the switching component includes a rotating shaft 3 movably connected to one side of the seat cushion 2, a backrest 4 fixedly connected to the surface of the rotating shaft 3, a leg support 5 provided on one side of the bottom of the seat cushion 2, a toothed plate 6 slidably connected to the other side of the bottom of the seat cushion 2, and a connecting rod 7 movably connected to one side of the toothed plate 6, one end of the connecting rod 7 being movably connected to the bottom of one side of the leg support 5, the switching component is used to switch the form of the furniture chair; a limiting component is provided in the inner cavity of the seat cushion 2, the limiting component includes a sliding rod 8 fixedly connected to one side of the inner cavity of the seat cushion 2, a sliding sleeve 9 slidably connected to the surface of the sliding rod 8, and limiting inserts 10 fixedly connected to both sides of the sliding sleeve 9, the limiting component is used to lock the angle of the backrest 4.

[0026] Specifically: The bottom and top of the support leg 1 are provided with a tapered structure to increase the contact area with the ground and improve the stability of the furniture chair. Through the elastic rotating shaft 3, the backrest 4 can automatically return to its original position when switching from a reclining to a sitting position. When the backrest 4 tilts backward, the internal structure can rotate the leg support 5 to support the legs. The toothed plate 6 moves due to the rotation of the gear 11, thereby using the connecting rod 7 to drive the leg support 5 to rotate. A limiting groove is opened on one side of the inner cavity of the seat cushion 2. The two sides of the inner cavity of the limiting groove are respectively attached to the two sides of the sliding sleeve 9 and the limiting groove is connected to the side of the sliding groove 13. The limiting insert 10 can engage the teeth on the surface of the gear 11 to limit the position of the backrest 4.

[0027] Example 2

[0028] Please see Figures 1-5 Based on embodiment 1, gears 11 are fixedly connected to both sides of the surface of the rotating shaft 3. The gears 11 mesh with the toothed plate 6. One side of the surface of the gear 11 contacts the side of the limiting insert 10. Limiting frames 12 are fixedly connected to both sides of the bottom of the seat cushion 2. One side of the surface of the toothed plate 6 is slidably connected to the inner cavity of the limiting frame 12. A sliding groove 13 is opened on one side of the seat cushion 2. A push handle 14 is fixedly connected to one side of the sliding sleeve 9. The surface of the push handle 14 is slidably connected to the inner cavity of the sliding groove 13. A spring 15 is sleeved on the surface of the sliding rod 8. One end of the spring 15 is fixedly connected to one side of the sliding sleeve 9. A rotating shaft is movably connected to one side of the bottom of the seat cushion 2. The surface of the rotating shaft is fixedly connected to one side of the leg support 5. Uprights 16 are fixedly connected to both sides of the top of the seat cushion 2. An armrest 17 is movably connected to one end of the uprights 16.

[0029] Specifically: Gear 11 rotates due to the tilt of cushion 4, thereby driving tooth plate 6 to move. Limiting frame 12 can limit the movement of tooth plate 6 and support tooth plate 6. The two tooth plates 6 are connected by a connecting strip to stabilize tooth plate 6. The push handle 14 makes it easy for users to switch modes when sitting or lying on the furniture chair. The upright 16 and armrest 17 make it convenient for users to place their arms.

[0030] Working principle: When the user adjusts the backrest 4 backward, the gears 11 fixed at both ends of the rotating shaft 3 rotate synchronously. The rotation of the gears 11 drives the meshing toothed plate 6 to slide steadily backward along the limiting frame 12 at the bottom of the seat cushion 2. The movement of the toothed plate 6 transmits power through the connecting rod 7 movably connected to one side, pushing the leg support 5 to unfold outward around its bottom rotating shaft, thus achieving a smooth transition from a sitting to a reclining position. Before adjusting the angle of the backrest 4, the push handle 14 must be pushed by hand to overcome the elasticity of the spring 15, causing the limiting insert 10 to disengage from the gear 11. At this time, the limiting component inside the seat cushion 2 releases the lock on the rotating shaft 3, allowing angle adjustment. Pushing the sliding sleeve 9 and the limiting inserts 10 fixed on both sides always tends to move towards the gear 11. When the backrest 4 is adjusted to the desired angle, release the push handle 14. This allows the limiting insert 10 to automatically engage with the gear 11 under the force of the spring 15, forming a mechanical interlock. This effectively prevents the backrest 4 from accidentally rotating or shaking during use, ensuring stability and safety in the reclining position. When it is necessary to return to a sitting position, the user only needs to push the push handle 14 along the slide groove 13 with one hand. The push handle 14 drives the slide sleeve 9 to compress the spring 15 and causes the limiting insert 10 to exit from the gear 11, releasing the lock on the rotating shaft 3. At this time, the backrest 4 resets under the drive of the rotating shaft 3, the gear 11 rotates in the opposite direction, driving the toothed plate 6 to move forward, and then pulling the leg support 5 inward synchronously through the connecting rod 7, finally restoring the chair to its initial sitting position and completing the entire form switching cycle.

[0031] The technical scope of this utility model is not limited to the content described above. Those skilled in the art can make various modifications and variations to the above embodiments without departing from the technical concept of this utility model, and all such modifications and variations should fall within the protection scope of this utility model.

Claims

1. A multi-purpose furniture chair, comprising legs (1), characterized in that; A seat cushion (2) is fixedly connected to the top of the support leg (1); The surface of the seat cushion (2) is provided with a switching component, which includes a rotating shaft (3) movably connected to one side of the seat cushion (2), a backrest (4) fixedly connected to the surface of the rotating shaft (3), a leg support (5) provided on one side of the bottom of the seat cushion (2), a toothed plate (6) slidably connected to the other side of the bottom of the seat cushion (2), and a connecting rod (7) movably connected to one side of the toothed plate (6). One end of the connecting rod (7) is movably connected to the bottom of one side of the leg support (5). The switching component is used to switch the form of the furniture chair. The inner cavity of the cushion (2) is provided with a limiting component, which includes a slide rod (8) fixedly connected to one side of the inner cavity of the cushion (2), a slide sleeve (9) slidably connected to the surface of the slide rod (8), and a limiting insert (10) fixedly connected to both sides of the slide sleeve (9). The limiting component is used to lock the angle of the backrest (4).

2. The multi-purpose furniture chair according to claim 1, characterized in that: Gears (11) are fixedly connected to both sides of the surface of the rotary shaft (3). The gears (11) mesh with the toothed plate (6). One side of the surface of the gears (11) contacts the side of the limiting insert (10).

3. A multi-purpose furniture chair according to claim 1, characterized in that: The bottom sides of the cushion (2) are fixedly connected to the limiting frame (12), and one side of the toothed plate (6) is slidably connected to the inner cavity of the limiting frame (12).

4. A multi-purpose furniture chair according to claim 1, characterized in that: The seat cushion (2) has a groove (13) on one side, and a push handle (14) is fixedly connected to one side of the sliding sleeve (9). The surface of the push handle (14) is slidably connected to the inner cavity of the groove (13).

5. A multi-purpose furniture chair according to claim 1, characterized in that: A spring (15) is fitted on the surface of the slide rod (8), and one end of the spring (15) is fixedly connected to one side of the slide sleeve (9).

6. A multi-purpose furniture chair according to claim 1, characterized in that: The bottom side of the seat cushion (2) is movably connected to a pivot, and the surface of the pivot is fixedly connected to one side of the leg support (5).

7. A multi-purpose furniture chair according to claim 1, characterized in that: The seat cushion (2) has uprights (16) fixedly connected to both sides of the top, and an armrest (17) is movably connected to one end of the uprights (16).

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