Intelligent sports seat with multidirectional sitting posture changing function

Abstract

The utility model relates to the technical field of seats, in particular to an intelligent sports seat with a multidirectional sitting posture changing function, which comprises a support frame, a cross-shaped movement mechanism, a controller, a telescopic transmission rod, a universal joint, a joint bearing, a chassis and a cushion, the supporting frame is hollow, an opening is formed in the top, and a bearing is arranged in the opening. The cross-shaped movement mechanism is arranged in the supporting frame, a universal joint is arranged on the upper surface of the cross-shaped movement mechanism, one end of a telescopic transmission rod is arranged in the universal joint, the other end of the telescopic transmission rod penetrates through a joint bearing to be connected with a chassis, and a cushion is arranged on the chassis. Through accurate control of the cross-shaped movement mechanism, multi-dimensional swing of the trunk part of a user can be achieved in a sitting posture or a supine state, muscle tension caused by long-time sitting is effectively relieved, and abdominal movement is promoted; the structure is simple in design, reliable in component connection and convenient to manufacture and maintain; the application of the universal joint enhances the flexibility and comfort of the seat, so that the swing is more stable and natural.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of chairs, in particular to an intelligent exercise chair with multi-directional sitting posture changing function. BACKGROUND

[0002] Sedentary behavior is a common unhealthy behavior in modern life. Survey data shows that more than 40% of office workers spend more than 8 hours a day sitting. Sedentary behavior can cause a series of health hazards, such as increasing the risk of ischemic heart disease, diabetes, colorectal cancer and premature death. Back pain is the most common problem of adult health, and more than 80% of people experience back pain in their lifetime, of which more than 20% are chronic back pain, which is the main cause of disability burden in the Chinese population. Prolonged sitting can reduce the strength and endurance of the lumbar muscles, leading to muscle atrophy and joint stiffness, increasing the risk of lumbar strain, back pain and herniated disc. Research has found that prolonged sitting can increase the risk of back pain in 24% of adults. As the number of people sitting increases, how to reduce the harm of sitting and reduce the risk of back pain through simple means is one of the problems to be solved.

[0003] Exercise can reduce the harm of sitting, increase back flexibility, reduce back muscle strain, and relieve back pain. However, due to various restrictions such as work, it is difficult to achieve intermittent exercise. Research has found that whole-body vibration and abdominal local vibration training can improve bone density, lumbar muscles and lumbar proprioception, and relieve back pain. However, activities require special equipment and places, and cannot be integrated into normal work and life scenarios. In order to apply it to the work and life scenario, those skilled in the art have made many studies, for example, utility model patent CN214433118U discloses an office exercise chair, which integrates a heating mechanism and a joint plate mechanism on the office exercise chair, solving the problem of cold seat cushion and incorrect sitting posture leading to lateral turning and lifting of the second leg in cold environments, achieving higher comfort and safety. Utility model patent CN222171703U discloses a motion chair back with a waist support, which solves the problem of separation of the waist support and the seat when the existing seat back is inclined backward, achieving better waist support and comfort. However, the above-mentioned exercise chairs do not completely solve the harm caused by prolonged sitting.

[0004] The present application provides an intelligent exercise chair with multi-directional sitting posture changing function. Using this function chair, the user's waist and abdomen can be moved in a small range and multiple directions to relieve muscle tension and prevent back pain from occurring. SUMMARY

[0005] In order to solve the above technical problems, the application provides a smart sports seat with multi-directional sitting posture changing function, which comprises a support frame 1, a cross motion mechanism 2, a controller 3, an extension transmission rod 4, a universal joint 5, a joint bearing 6, a chassis 7 and a seat cushion 8; the support frame 1 is hollow, the top of the support frame 1 is provided with an opening, and the opening is provided with the joint bearing 6; the cross motion mechanism 2 is arranged in the support frame 1, the upper surface of the cross motion mechanism 2 is provided with the universal joint 5, one end of the extension transmission rod 4 is arranged in the universal joint 5, the other end of the extension transmission rod 4 passes through the joint bearing 6 and is connected with the chassis 7, and the chassis 7 is provided with the seat cushion 8.

[0006] Preferably, the cross motion mechanism 2 comprises a first sliding table 201 and a second sliding table 202, the first sliding table 201 and the second sliding table 202 are completely the same in structure and are orthogonally stacked, and specifically comprise: a sliding table shell 211, a pair of linear guide rails 212 are arranged in parallel on the upper surface of the sliding table shell 211, mounting plug blocks 213 are arranged at the two ends of the linear guide rails 212, openings are arranged on the mounting plug blocks 213, bearings are arranged in the openings, a transmission screw rod 214 is supported between the two mounting plug blocks 213 through the bearings, and a driven pulley 217 is fixedly connected to the end of the transmission screw rod 214; a sliding block 215 is internally provided with a screw nut 216 which is engaged with the transmission screw rod 214, and the sliding block 215 can slide on the linear guide rails 212 through the transmission screw rod 214; a driving assembly comprises a servo motor 218 fixedly arranged at the end of the sliding table shell 211, a driving pulley 220 connected with the motor shaft, and an annular synchronous belt 221 which envelopes the driving pulley 220 and the driven pulley 217.

[0007] The servo motor 218 is connected with a motor driver 219, demand input by the controller 3 is transmitted to the motor driver 219 for processing, and the motion of the driving assembly is controlled.

[0008] Preferably, the top of the support frame 1 is a conical body structure.

[0009] Preferably, the motion directions of the first sliding table 201 and the second sliding table 202 are different, the first sliding table 201 moves in the X-axis direction, and the second sliding table 202 moves in the Y-axis direction.

[0010] Preferably, the controller 3 pre-stores linear, elliptical and eight-shaped plane trajectory algorithms, the signal input by a user operation panel is used to solve X / Y-axis sliding table displacement instructions, the instructions are transmitted to the motor driver 219 for processing, and the two servo motors 218 are controlled to operate.

[0011] Preferably, the extension transmission rod 4 is composed of two coaxially sleeved rod bodies, the length of the extension transmission rod 4 is adaptively adjusted with the displacement of the cross motion mechanism 2, and the adjustment length is greater than or equal to 20 mm.

[0012] Preferably, the joint bearing 6 comprises an outer ring 601 fixed on the top of the support frame 1 and an inner ring 602 in clearance fit with the telescopic transmission rod 4, allowing multi-degree-of-freedom swing around the ball center with a swing angle range of 20-30°. The overall structure of the joint bearing 6 can withstand shear load ≥500N in the transverse and radial directions.

[0013] Preferably, the telescopic transmission rod 4 bears bidirectional axial load ≥100kg.

[0014] Preferably, the seat cushion 8 is an ergonomic curved surface shape and is detachably installed on the bottom plate 7.

[0015] Preferably, the intelligent exercise seat further comprises a shell 11, a support leg 12, an armrest 13 and a backrest 14, the shell 11 is wrapped outside the support frame 1, the support leg 12 is arranged at the bottom of the shell 11, and the armrest 13 and the backrest 14 are arranged around the seat cushion 8.

[0016] Preferably, the support leg 12 is telescopic, the height of the armrest 13 is adjustable, and the inclination of the backrest 14 is adjustable.

[0017] The intelligent exercise seat with multi-directional sitting posture changing function provided by the application has the advantages that: through precise control of the cross motion mechanism, the user can realize multi-dimensional swing of the trunk in a sitting posture or a supine state, effectively relieving muscle tension caused by long sitting and promoting abdominal activity; secondly, the structure design is simple, the components are reliably connected, and the intelligent exercise seat is convenient to manufacture and maintain; finally, the application of the universal joint enhances the flexibility and comfort of the seat, making the swing more stable and natural. The intelligent exercise seat is not only suitable for office places, but also can be widely applied to fields such as families and medical rehabilitation, and has good market prospects. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 A front view of an intelligent exercise seat with multi-directional sitting posture changing function

[0019] Figure 2 A side view of an intelligent exercise seat with multi-directional sitting posture changing function

[0020] Figure 3 A plan view of a motion mechanism of an intelligent exercise seat with multi-directional sitting posture changing function

[0021] Figure 4 A partial view of a transmission mechanism of an intelligent exercise seat with multi-directional sitting posture changing function

[0022] Figure 5Figure 2 is a partial view of a cross slide structure, wherein 201 is a first slide, 202 is a second slide, 211 is a slide housing, 212 is a linear guide rail, 213 is a mounting plug, 214 is a transmission screw rod, 215 is a slide block, 216 is a screw nut, 217 is a driven pulley, 218 is a servo motor, 219 is a motor driver, 220 is a driving pulley, and 221 is a synchronous belt.

[0023] Figure 6 A perfect view of an intelligent sports seat with multi-directional sitting posture changing function

[0024] 11. housing, 12. support leg, 13. armrest, 14. backrest; DETAILED DESCRIPTION

[0025] The above content of the present application will be further explained in detail through the specific embodiments in the form of examples. However, it should not be understood that the above-mentioned subject matter of the present application is limited to the following examples. Any technology realized based on the above-mentioned content of the present application belongs to the scope of the present application.

[0026] Based on the deficiencies in the prior art, the present application provides a new technical solution, that is, an intelligent sports seat with multi-directional sitting posture changing function, which can realize the swinging of the trunk in a sitting or supine position, and has the effect of relieving muscle tension caused by long sitting and driving abdominal activity.

[0027] Example 1: An intelligent sports seat with multi-directional sitting posture changing function

[0028] As shown in Figures 1-5 An intelligent sports seat with multi-directional sitting posture changing function, which comprises a support frame 1, a cross motion mechanism 2, a controller 3, an extension transmission rod 4, a universal joint 5, a joint bearing 6, a chassis 7 and a seat cushion 8; the support frame 1 is hollow, and the top is provided with an opening, and the opening is provided with the bearing 6; the cross motion mechanism 2 is placed inside the support frame 1, and the upper surface is provided with the universal joint 5, one end of the extension transmission rod 4 is placed inside the universal joint 5, and the other end passes through the joint bearing 6 and is connected with the chassis 7, and the chassis 7 is provided with the seat cushion 8; a human body sits on the seat cushion 8, presses the button on the controller, and can realize left and right or up and down motion, and has the effect of relieving muscle tension caused by long sitting and driving abdominal activity.

[0029] The cross motion mechanism 2 includes a first slide 201 and a second slide 202. The first slide 201 and the second slide 202 have identical structures and are orthogonally stacked. Specifically, the slide housing 211 has a pair of linear guide rails 212 parallel to each other on its upper surface. The linear guide rails 212 have mounting blocks 213 at both ends. The mounting blocks 213 have openings with bearings inside. The transmission screw 214 is supported between the two mounting blocks 213 by the bearings. The end of the transmission screw 214 is fixedly connected to the driven pulley 217. The slider 215 has a screw nut 216 that meshes with the transmission screw 214 and can slide on the linear guide rails 212 through the transmission screw 214. The drive assembly includes a servo motor 218 fixed to the end of the slide housing 211, a drive pulley 220 connected to the motor shaft, and an annular synchronous belt 221 that encloses the drive pulley 220 and the driven pulley 217.

[0030] The servo motor 218 is connected to a motor driver 219. The controller 3 inputs the requirements, and the signal is transmitted to the motor driver 219 for processing and to control the movement of the drive components.

[0031] In this embodiment, the top of the support frame 1 is a conical structure, which facilitates the internal cross motion mechanism 2 and connects the telescopic transmission rod 4 through the opening.

[0032] In this embodiment, the first slide 201 and the second slide 202 move in different directions. The first slide 201 moves in the X-axis direction, and the second slide 202 moves in the Y-axis direction. The meeting motion can produce forward / backward / left / right linear motion and elliptical or figure-eight composite trajectories.

[0033] Example of motion: forward and backward linear motion

[0034] User input: Select "forward and backward linear motion" mode via controller 3, set amplitude ±30mm, frequency 0.5Hz.

[0035] Signal processing: Controller 3 calls the pre-stored linear trajectory algorithm to generate a single-axis (X-axis) displacement command: x(t) = 30·sin(πt) mm; the Y-axis remains at zero: y(t) = 0 mm;

[0036] Command issuance: Controller 3 decomposes the displacement command into a sinusoidal motion command for the X-axis servo motor via the CAN bus, while the Y-axis servo motor is locked at zero position. The command is sent in real time to the corresponding motor driver 219 for the X / Y axis.

[0037] Execution control: X-axis motor driver 219 drives servo motor 218-X to rotate in both forward and reverse directions according to a sine law; Y-axis motor driver 219 maintains zero output, and servo motor 218-Y is in a brake-locked state.

[0038] Motion execution: servo motor 218-X drives transmission screw 214 to rotate through synchronous belt 220, driving X-axis slider 215 to slide along linear guide rail 212 (stroke ±30 mm); X-axis first sliding table 201 transmits motion through universal joint 5 and telescopic transmission rod 4, and bottom plate 7 drives seat cushion 8 to move periodically.

[0039] Effect: seat cushion 8 moves with an amplitude of ±30 mm and a frequency of 0.5 Hz, relieving muscle fatigue in the waist.

[0040] In this embodiment, the telescopic transmission rod 4 is composed of two coaxially nested rod bodies, which adaptively adjust the length according to the displacement of the cross motion mechanism 2, and the adjustment length is ≥20 mm.

[0041] In this embodiment, the joint bearing 6 includes an outer ring 601 and an inner ring 602, the outer ring 601 is fixed to the top of the support frame 1, and the inner ring 602 is in clearance fit with the telescopic transmission rod 4, allowing multi-degree-of-freedom swing around the ball center, and the swing angle range is 20-30°. The overall structure of the joint bearing 6 can withstand a shear load of ≥500 N in the transverse and radial directions.

[0042] In this embodiment, the telescopic transmission rod 4 bears bidirectional axial load of ≥100 kg, which is suitable for different groups.

[0043] In this embodiment, the seat cushion 8 is a curved surface shape conforming to human engineering, which can be detachably installed on the bottom plate 7, and disperses the hip pressure through dynamic motion.

[0044] Embodiment two, an intelligent motion seat with multi-directional sitting posture changing function

[0045] As shown in Figure 6 An intelligent motion seat with multi-directional sitting posture changing function is added to the structure of the intelligent motion seat, including a shell 11, support legs 12, armrests 13 and backrests 14. The shell 11 is wrapped outside the support frame 1, the support legs 12 are arranged at the bottom of the shell 11, the armrests 13 and backrests 14 are arranged around the seat cushion 8. In this embodiment, the support legs 12 are telescopic, the height of the armrests 13 is adjustable, and the inclination of the backrests 14 is adjustable, which adapts to different user needs. This design realizes high stability dynamic adjustment of sitting posture through precise transmission of the cross motion mechanism, adaptive adjustment of the telescopic transmission rod and multi-directional bearing of the joint bearing, which is suitable for office and rehabilitation scenes, and effectively relieves sitting fatigue.

[0046] The above description is only a preferred embodiment of the present application and is not intended to limit the present application. Those skilled in the art can make various modifications and changes to the present application. Any modification, equivalent replacement, improvement, etc. made within the spirit and principles of the present application shall be included in the protection scope of the present application.

Claims

1. An intelligent sports seat having a multi-directional sitting position changing function, characterized in that, The intelligent motion seat comprises a support frame (1), a cross motion mechanism (2), a controller (3), a telescopic transmission rod (4), a universal joint (5), a joint bearing (6), a chassis (7) and a seat cushion (8); the support frame (1) is hollow, the top of the support frame (1) is provided with an opening, and the joint bearing (6) is arranged in the opening; the cross motion mechanism (2) is arranged in the support frame (1), the upper surface of the cross motion mechanism (2) is provided with the universal joint (5), one end of the telescopic transmission rod (4) is arranged in the universal joint (5), the other end of the telescopic transmission rod (4) passes through the joint bearing (6) and is connected with the chassis (7), and the chassis (7) is provided with the seat cushion (8).

2. The intelligent motion seating of claim 1, wherein, The cross motion mechanism (2) comprises a first sliding table (201) and a second sliding table (202), the first sliding table (201) and the second sliding table (202) are completely same in structure and are orthogonally and superimposedly arranged, and specifically comprise: a sliding table shell (211), a pair of linear guide rails (212) are arranged in parallel on the upper surface of the sliding table shell (211), the two ends of the linear guide rails (212) are provided with mounting plug blocks (213), the mounting plug blocks (213) are provided with openings, bearings are arranged in the openings, a transmission screw rod (214) is supported between the two mounting plug blocks (213) through the bearings, and a driven belt pulley (217) is fixedly connected to the end of the transmission screw rod (214); a screw nut (216) which is engaged with the transmission screw rod (214) is arranged in the sliding block (215) in a penetrating mode, and the transmission screw rod (214) can slide on the linear guide rail (212); a driving assembly comprises a servo motor (218) fixedly arranged at the end of the sliding table shell (211), a driving belt pulley (220) connected with the motor shaft, and an annular synchronous belt (221) enveloping the driving belt pulley (220) and the driven belt pulley (217). The servo motor (218) is connected with a motor driver (219), the demand input by the controller (3) is transmitted to the motor driver (219) for processing, and the movement of the driving assembly is controlled.

3. The intelligent motion seating of claim 1, wherein, The top of the support frame (1) is a conical body structure.

4. The intelligent motion seating of claim 2, wherein, The movement directions of the first sliding table (201) and the second sliding table (202) are different, the first sliding table (201) moves in the X-axis direction, and the second sliding table (202) moves in the Y-axis direction.

5. The intelligent motion seating of claim 1, wherein, The controller (3) pre-stores linear, elliptical and eight-shaped plane trajectory algorithms, calculates X / Y-axis sliding table displacement instructions through the signals input by the user operation panel, and transmits the instructions to the motor driver (219) for processing to control the operation of the two servo motors (218).

6. The intelligent motion seating of claim 1, wherein, The telescopic transmission rod (4) is composed of two coaxially sleeved rod bodies, and the length thereof is adaptively adjusted according to the displacement of the cross motion mechanism (2), and the adjustment length is greater than or equal to 20 mm.

7. The intelligent motion seating of claim 1, wherein, The joint bearing (6) comprises an outer ring (601) and an inner ring (602), the outer ring (601) is fixed to the top of the support frame (1), the inner ring (602) is in clearance fit with the telescopic transmission rod (4), and is allowed to swing around the ball center with multiple degrees of freedom, the swing angle range is 20-30°, and the overall structure of the joint bearing (6) can bear a shear load of greater than or equal to 500 N in the transverse and radial directions.

8. The intelligent motion seating of claim 1, wherein, The telescopic transmission rod (4) bears bidirectional axial load of ≥100kg.

9. The intelligent motion seating of claim 1, wherein, The seat cushion (8) is an ergonomic curved surface and is detachably installed on the bottom plate (7).

10. The intelligent motion seating of claim 1, wherein, The intelligent sports seat is further provided with a shell (11), support legs (12), armrests (13) and a backrest (14). The shell (11) is wrapped outside the support frame (1), the support legs (12) are arranged at the bottom of the shell (11), the armrests (13) and the backrest (14) are arranged around the seat cushion (8). The support legs (12) are telescopic, the height of the armrests (13) is adjustable, and the inclination of the backrest (14) is adjustable.

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