A multi-functional chair

Abstract

The utility model relates to furniture field especially is concerned about a kind of multifunctional chair.The utility model provides a kind of multifunctional chair, including chair and cushion etc., and the upper side of chair is equipped with cushion.By setting up multiple flexible film pressure sensors in cushion and backrest air bag, chair has the ability of real-time sensing user sitting posture state, weight distribution and back pressure change, provides data basis for intelligent adjustment, simultaneously, microcontroller as intelligent decision core, can analyze sensor data, automatically identify the body shape characteristics and attitude change (such as forward-leaning work or leaning back rest), and generate corresponding adjustment instruction, realize the fundamental change from "passive bearing" to "active adaptation";Through the collaborative work of motor, screw rod and guide rod, motor output shaft drives screw rod to rotate, and the movable frame is moved along the guide rod by screw rod, and the movable frame pushes backrest to move steplessly and linearly, realize the automatic, continuous adjustment of backrest angle and position.

Description

Technical Field

[0001] This utility model relates to the field of furniture, and more particularly to a multifunctional chair. Background Technology

[0002] A multifunctional chair is a type of seating that integrates multiple functions or transforms into different forms, designed to meet the diverse needs of users in different scenarios. It transcends the single function of a traditional chair—"sitting"—and achieves more uses through structural design, material selection, or additional components.

[0003] Existing ordinary chairs have significant technical limitations in terms of functionality and intelligence, making it difficult to meet the comprehensive needs of modern users for health, comfort, and efficiency. First, traditional chairs generally lack sensing capabilities and do not have any sensor systems, making it impossible to monitor the user's sitting posture, weight distribution, or spinal stress in real time. This results in their support function being completely static and "blind," unable to respond to individual differences or changes in posture. Second, their structural design is either highly fixed or has extremely limited adjustment functions. Backrest angle, seat depth, lumbar support, and headrest position usually require manual adjustment, with few adjustment levels and cumbersome operation. Once set, they cannot automatically adapt to dynamic changes in the user's posture (such as from leaning forward to resting), which can easily cause the lumbar spine to be unsupported, ischial tuberosities to be compressed, or cervical spine fatigue. Long-term use can easily lead to musculoskeletal diseases.

[0004] To address the issues raised above, a multifunctional chair is needed. Utility Model Content

[0005] To overcome the shortcomings of lacking sensing capabilities and having no sensor system, thus failing to monitor the user's posture, weight distribution, or spinal stress in real time, this utility model provides a multifunctional chair.

[0006] The technical solution of this utility model is as follows: A multifunctional chair, comprising a chair, a seat cushion, an airbag, a flexible thin-film pressure sensor, a mounting plate, a microcontroller, a connecting plate, a lead screw, a motor, a guide rod, a moving frame, a backrest, and an air pump. The upper side of the chair is provided with a seat cushion, and multiple flexible thin-film pressure sensors are installed inside the seat cushion. The mounting plate is connected to the rear side of the chair. A microcontroller is installed on the right side of the mounting plate. A connecting plate is connected to the front side of the mounting plate. A motor is installed on the front left side of the connecting plate. The output shaft of the motor passes through the connecting plate and is connected to a lead screw. A guide rod is connected to the rear right side of the connecting plate. A moving frame is slidably connected to the lead screw. The moving frame slides with the guide rod. A backrest is connected to the front side of the moving frame. An airbag is provided on the lower front side of the backrest. Multiple flexible thin-film pressure sensors are also installed inside the airbag. An air pump is installed on the moving frame.

[0007] Preferably, the backrest also includes a connecting frame, a sliding plate, a pivot, and a headrest. The connecting frame is connected to the backrest side, the sliding plate is slidably connected inside the connecting frame, the pivot is rotatably connected to the upper side of the sliding plate, and the headrest is provided on the pivot.

[0008] Preferably, it also includes a first protective shell, which is provided on the right side of the mounting plate.

[0009] Preferably, a second protective shell is also included, with the second protective shell located on the left side in front of the connecting plate.

[0010] Preferably, a third protective shell is also included, which is provided on the movable frame.

[0011] Preferably, the sliding plate is provided with a limiting block.

[0012] The beneficial effects of this invention are as follows: By setting multiple flexible thin-film pressure sensors in the airbags of the seat cushion and backrest, the chair has the ability to sense the user's sitting posture, weight distribution, and back pressure changes in real time, providing a data foundation for intelligent adjustment. At the same time, the microcontroller, as the core of intelligent decision-making, can analyze sensor data, automatically identify the user's body shape characteristics and posture changes (such as leaning forward to work or leaning back to rest), and generate corresponding adjustment commands, realizing a fundamental shift from "passive bearing" to "active adaptation." Through the coordinated work of the motor, lead screw, and guide rod, the motor output shaft drives the lead screw to rotate, the lead screw drives the moving frame to move along the guide rod, and the moving frame pushes the backrest to move in a stepless linear manner, realizing automatic and continuous adjustment of the backrest angle and position. Meanwhile, the air pump inflates and deflates the airbags according to the microcontroller's commands, dynamically adjusting the support strength and fit of the lumbar support, effectively relieving lumbar spine pressure and avoiding muscle fatigue and spinal injury caused by insufficient support. Attached Figure Description

[0013] Figure 1 This is a three-dimensional structural diagram of the present invention.

[0014] Figure 2 This is a three-dimensional structural diagram of the mounting plate, movable frame, and backrest components of this utility model.

[0015] Figure 3 This is a cross-sectional view of the seat cushion and airbag of this utility model.

[0016] Figure 4 This is a three-dimensional structural diagram of the first protective shell, second protective shell, and third protective shell components of this utility model.

[0017] Figure 5 This is a three-dimensional structural diagram of the microcontroller, connecting plate, and lead screw components of this utility model.

[0018] Figure 6This is a three-dimensional structural diagram of the sliding plate, rotating shaft, and headrest components of this utility model.

[0019] Explanation of reference numerals in the attached drawings: 1: Chair, 2: Seat cushion, 3: Airbag, 4: Flexible thin-film pressure sensor, 5: Mounting plate, 6: Microcontroller, 7: Connecting plate, 8: Lead screw, 801: Motor, 9: Guide rod, 10: Moving frame, 11: Backrest, 12: Air pump, 13: Connecting frame, 14: Sliding plate, 15: Rotating shaft, 16: Headrest, 17: First protective shell, 18: Second protective shell, 19: Third protective shell. Detailed Implementation

[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0021] Example: A multifunctional chair, such as Figures 1-6As shown, the system includes a chair 1, a seat cushion 2, an airbag 3, a flexible thin-film pressure sensor 4, a mounting plate 5, a microcontroller 6, a connecting plate 7, a lead screw 8, a motor 801, a guide rod 9, a moving frame 10, a backrest 11, an air pump 12, a connecting frame 13, a sliding plate 14, a rotating shaft 15, a headrest 16, a first protective shell 17, a second protective shell 18, and a third protective shell 19. The chair 1 has a seat cushion 2 on its upper side. Multiple flexible thin-film pressure sensors 4 are installed inside the seat cushion 2. These sensors are used to sense and collect the user's weight distribution, center of gravity, and lumbar spine area in real time and non-invasively. The chair 1 has pressure data from a flexible thin-film pressure sensor 4. A mounting plate 5 is connected to the rear of the chair 1. A microcontroller 6 is mounted on the right side of the mounting plate 5. The microcontroller 6 receives data from the flexible thin-film pressure sensor 4, analyzes and processes it, and determines the user's body shape, posture, and spinal condition. A connecting plate 7 is connected to the front of the mounting plate 5. A motor 801 is mounted on the front left side of the connecting plate 7. The output shaft of the motor 801 passes through the connecting plate 7 and is connected to a lead screw 8. A guide rod 9 is connected to the rear right side of the connecting plate 7. The guide rod 9 provides linear guidance for the movable frame 10. The movable frame 10 is slidably connected to the lead screw 8, and the movable frame 10 slides in conjunction with the guide rod 9. The mobile frame 10 has a backrest 11 connected to its front side, which provides support for the user's back. An airbag 3 is located on the lower front side of the backrest 11, and multiple flexible thin-film pressure sensors 4 are installed inside the airbag 3. An air pump 12 is installed on the mobile frame 10, controlled by a microcontroller 6. The air pump 12 inflates or deflates the airbag 3 according to instructions to dynamically adjust the degree of inflation of the airbag 3, thereby changing the support force for the user's lower back. A connecting frame 13 is connected to the rear side of the backrest 11, and a sliding plate 14 is slidably connected within the connecting frame 13. A limit block is provided on the sliding plate 14, and a rotatable connection is made to the upper side of the sliding plate 14. A rotating shaft 15 is provided with a headrest 16, which provides support for the user's head and neck. A first protective shell 17 is provided on the right side of the mounting plate 5. The first protective shell 17 is located outside the microcontroller 6 and is used to protect the microcontroller 6. A second protective shell 18 is provided on the front left side of the connecting plate 7. The second protective shell 18 is located outside the motor 801 and is used to protect the motor 801. A third protective shell 19 is provided on the moving frame 10. The third protective shell 19 is located outside the air pump 12 and is used to protect the air pump 12.

[0022] When a user sits on the multi-functional chair 1, multiple flexible thin-film pressure sensors 4 and a microcontroller 6 automatically activate. Subsequently, the flexible thin-film pressure sensors 4 within the seat cushion 2 begin to sense the weight and pressure distribution of the human body. Simultaneously, the flexible thin-film pressure sensors 4 within the airbag 3 also collect data on the force distribution in the lumbar region and transmit this crucial physiological data in real time to the core microcontroller 6. The microcontroller 6 quickly analyzes the received signals, determining the user's body shape, center of gravity, and spinal support status, and generates corresponding adjustment commands accordingly. To achieve automatic adjustment of the backrest angle 11, the motor 801 automatically starts, and the output shaft of the motor 801 drives the lead screw 8 to rotate. During the process, the lead screw 8 drives the moving frame 10 to slide smoothly back and forth along the guide rod 9, thereby pushing the entire backrest 11 to perform stepless adjustment of forward or backward tilting, ensuring that the user's back receives the most suitable support angle. At the same time, the microcontroller 6 controls the air pump 12 to work according to the lumbar spine pressure data, dynamically adjusting the expansion degree of the airbag 3 by inflating or deflating it, so that the lumbar support force always conforms to the user's physiological curve, effectively relieving fatigue caused by prolonged sitting. While the backrest 11 changes angle, it will drive the connecting frame 13 and the sliding plate 14 to move. Then, the user rests their head on the headrest 16. Under the action of gravity, the headrest 16 rotates along the pivot 15, thereby adapting to different head and neck postures of different users in multiple dimensions.

[0023] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A multi-functional chair, characterized by comprising The chair (1) includes a seat (2), an airbag (3), a flexible thin-film pressure sensor (4), a mounting plate (5), a microcontroller (6), a connecting plate (7), a lead screw (8), a motor (801), a guide rod (9), a moving frame (10), a backrest (11), and an air pump (12). The seat (2) is located on the upper side of the chair (1). Multiple flexible thin-film pressure sensors (4) are installed inside the seat (2). The mounting plate (5) is installed on the rear side of the chair (1). A microcontroller (6) is installed on the right side of the mounting plate (5). A front-mounted component is fixedly connected to the mounting plate (5). A connecting plate (7) is provided. A motor (801) is installed on the front left side of the connecting plate (7). The output shaft of the motor (801) passes through the connecting plate (7) and is connected to a lead screw (8). A guide rod (9) is provided on the rear right side of the connecting plate (7). A movable frame (10) is slidably connected on the lead screw (8). The movable frame (10) and the guide rod (9) are slidably engaged. A backrest (11) is provided on the front side of the movable frame (10). An airbag (3) is provided on the lower front side of the backrest (11). Multiple flexible thin film pressure sensors (4) are also installed inside the airbag (3). An air pump (12) is installed on the movable frame (10).

2. A multi-functional chair as claimed in claim 1, wherein, It also includes a connecting frame (13), a sliding plate (14), a pivot (15) and a headrest (16). The connecting frame (13) is fixedly connected to the backrest (11). The sliding plate (14) is slidably connected inside the connecting frame (13). The pivot (15) is rotatably connected to the upper side of the sliding plate (14). The headrest (16) is provided on the pivot (15).

3. A multifunctional chair as described in claim 2, characterized in that, It also includes a first protective shell (17), which is connected to the right side of the mounting plate (5).

4. A multifunctional chair as described in claim 3, characterized in that, It also includes a second protective shell (18), which is connected to the front left side of the connecting plate (7).

5. A multifunctional chair as described in claim 4, characterized in that, It also includes a third protective shell (19), which is connected to the mobile frame (10).

6. A multifunctional chair as described in claim 5, characterized in that, The sliding plate (14) is provided with a limit block.

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