阅读说明：本技术 一种动感座椅 (Dynamic seat ) 是由 不公告发明人 于 2021-09-15 设计创作，主要内容包括：本发明公开了一种动感座椅,包括座板和支撑所述座板的支撑柱,所述支撑柱上集成有运动系统,所述运动系统能够通过局部旋转而使支撑柱弯曲并控制该弯曲的程度和方向,进而控制所述座板的倾斜程度和倾斜方向；还包括传感系统和控制系统,所述传感系统能测量座椅使用者施加的力的大小；所述控制系统可以控制所述运动系统以使座板执行预定或用户指令的运动模式；从而使人体对座板的运动模式做出相应的抵抗反应；还包括通信系统,所述通信系统能够与电子设备上的应用程序进行无线通信,该应用程序可以跟踪、传输传感器数据,得出用户的健康参数,还能够记录和/或分析处理所述健康参数。(The invention discloses a dynamic seat, which comprises a seat board and a supporting column for supporting the seat board, wherein a motion system is integrated on the supporting column, and the motion system can bend the supporting column through local rotation and control the bending degree and direction so as to control the inclination degree and the inclination direction of the seat board; the device also comprises a sensing system and a control system, wherein the sensing system can measure the force applied by a seat user; the control system may control the motion system to cause the seat pan to execute a predetermined or user-commanded motion pattern; thereby causing the human body to make corresponding resisting reaction to the movement mode of the seat board; the system also comprises a communication system, wherein the communication system can wirelessly communicate with an application program on the electronic equipment, the application program can track and transmit sensor data, derive health parameters of a user, and record and/or analyze and process the health parameters.)

1. A rotary support system, characterized by: the device comprises a supporting column, wherein a motion system is integrated on the supporting column, and the motion system can bend the supporting column through local rotation and control the bending degree and direction so as to control the inclination degree and inclination direction of a supported object; the motion system comprises at least 2 stages of independently rotatable rotating rings and independent driving units, and the rotating rings are driven by a plurality of independent driving units to realize independent rotation; the supported object can rotate independently relative to the rotating rings, and the independent driving unit comprises a motor arranged in each rotating ring.

2. The rotary support system of claim 1, wherein: the output shaft of the motor is directly connected to each rotating ring through a connecting structure; preferably, a universal joint is further provided between at least one motor and the swivel connected thereto.

3. The rotary support system of claim 1, wherein: each level of the rotating ring is a tubular structure, and the tubular structure has a first height and a second height, so that the rotating axis of the lower section of the rotating ring is not coincident with the rotating axis of the upper section of the rotating ring;

the motor is fixed on the inner wall of the tubular structure and/or on an independently arranged bracket;

the inclination angle of the supported object in any plane is 0 to the maximum, and the inclination angle is four times of the inclination angle formed by the difference between the first height and the second height of the swivel.

4. The rotary support system of claim 3, wherein: the tubular structure has a continuous or interrupted wall, the structure of which may consist of a ring structure and supports of different heights arranged at uniform intervals between the circles at the bottom of the ring structure.

5. The rotary support system of any one of claims 2 or 3, wherein: transmitting torque and rotation through meshed gears or gear sets disposed inside or outside the respective swivels, or transmitting torque and rotation through rolling elements having a high coefficient of friction;

the motor is in meshed connection with the gear ring through a gear or a gear set, the gear ring comprises a driving gear ring and a connecting gear ring, and the gear ring is fixed on the inner wall or the outer wall of the bottom of each rotating ring, each supporting ring or each supported object;

preferably, the gear or gear set comprises a planetary gear, an internal gear, a bevel gear or a combination thereof.

6. A kinetic seat comprising a rotary support system as claimed in any one of claims 1 to 5, a support column of the rotary support system being adapted to support a seat pan of the seat, wherein: the motion system can bend the support columns and control the degree and direction of the bending by local rotation, thereby controlling the degree and direction of tilt of the seat plate and rotating the seat plate.

7. The kinetic seat of claim 6, wherein: the sensor system measures the force resisting the movement of the seat plate on the seat plate; the control system may control the motion system to cause the seat pan to execute a predetermined or user-commanded motion pattern; thereby causing the human body to make corresponding resisting reaction to the movement mode of the seat board.

8. The kinetic seat of claim 7, wherein: the system also comprises a communication system, wherein the communication system can wirelessly communicate with an application program on the electronic equipment, the application program can track and transmit sensor data, derive health parameters of a user, and record and/or analyze and process the health parameters.

9. The kinetic seat of claim 6, wherein: the supporting column comprises a supporting ring arranged at the bottom and a movement system arranged on the supporting ring; the motion system comprises an upper rotating ring, a middle rotating ring, a lower rotating ring and a plurality of independent driving units for driving the rotating rings to rotate, wherein the upper rotating ring, the middle rotating ring and the lower rotating ring can rotate independently relative to each other; preferably, the angle of inclination of the seat plate in any plane is not more than 40 degrees.

10. A method of exercising the pelvis and/or lower back muscles of a person using the kinetic seat of any of claims 6 to 9, wherein:

when the dynamic seat is in an initial state, the supporting column is kept vertical and not bent, and the seat plate is kept horizontal;

when the sensing system senses that the seat board is pressed, the pressed signal is fed back to the control system, the control system analyzes the pressed signal according to the pre-stored user information, and when the pressed signal is matched with the user information, the control system judges the use state of the dynamic seat, waits for receiving a user instruction and starts timing;

when receiving a user instruction, the control system sends a control signal to the motion system according to the instruction, and the motion system executes a motion mode selected by a user according to the control signal;

when the timing exceeds the preset waiting time and a user instruction is not received, the control system judges that the user keeps the same sitting posture for a long time, automatically sends a control signal to the motion system according to a preset program, and the motion system executes a preset motion mode according to the control signal;

in the preset position, the sensor system waits for the user pressure to actively return the seat to the default position, and when the pressure exceeds a threshold value, the control system sends a control signal to the motion system to return the seat plate to the default position, said pressure coming from the pelvic and lower back muscles, which exercise promotes the activation of these muscles.

Technical Field

The invention relates to an intelligent ergonomic chair, in particular to a dynamic chair capable of actively adjusting sitting postures and exercising pelvis and/or lower back muscles.

Background

The seat is a common article in work and life. For most people working in offices, a great deal of time is required to use the chair every day. At present, a great deal of scientific research shows that the health of people is adversely affected after long-term sitting, and the health of the lumbar vertebra, the cervical vertebra, the back, the pelvis and other body parts of people is obviously affected. The reason is that a person tends to keep the same posture for a long time without movement or adjustment during a highly mental intensive work.

There are some dynamic seats in the prior art, such as patent documents WO9916335, JP200552317, WO2019143555 and the like, which all disclose similar dynamic seat solutions. Such dynamic chairs allow the user to adjust his sitting position without leaving the chair, thereby avoiding maintaining the same posture for a long time. Thereby being beneficial to improving the adverse effect of sedentary sitting on the body. However, such dynamic chairs essentially achieve dynamic functions through unstable seat board structures, and require the user to actively move to adjust the body gravity center to change the posture, for example, the user may tilt the seat board to the left if the body tilts to the left. However, such dynamic solutions do not give the user a good user experience, even worse than conventional chairs. The reason is that the user usually stays working in the same sitting posture for a long time and forgets to actively move, or the inclination of the seat plate is caused by any careless or subconscious change of the center of gravity of the body, so that the user is postured without psychological preparation and the illusion that the seat may topple is generated. Thus, such dynamic solutions do not allow the user to be put into operation as mentally as with conventional chairs.

Disclosure of Invention

Aiming at the existing problems, the invention provides the dynamic seat which can actively adjust the movement mode of the seat board of the seat and drive a user to move through the movement of the seat board, so that the user is prevented from keeping the same posture for a long time; meanwhile, the adjusting process of the dynamic seat is insensitive to the gravity center position of a user, so that the user can be put into operation like using a traditional seat.

In order to solve the technical problems, the invention provides the following technical scheme:

the dynamic seat comprises a seat body and a support column, wherein the seat body at least comprises a seat board, and can also comprise a seat back, an armrest and other conventional components, but it is to be noted that the seat back and the armrest are not necessary in the technical scheme of the invention, the seat of the invention can also be in a form similar to a stool only comprising the seat board and the support column, and for the convenience of expression, the seat is collectively referred to as the seat in the invention.

The support column is for supporting the seat plate, and is substantially cylindrical. Wherein, the support column is integrated with a motion system, and the motion system can bend the support column through local rotation and control the degree and the direction of the bending, thereby controlling the inclination degree and the inclination direction of the seat plate.

The dynamic seat further comprises a sensing system and a control system.

The sensor control system senses a muscle force profile on the seat pan and varies the seat recline as indicated by the force profile. The sensing system is also able to measure the force on the seat plate opposite to the movement direction of the seat plate, which is essentially the resistance force exerted by the person against the moving seat plate in order to want to bring the seat plate back to the desired position, e.g. the horizontal position, or the position of the seat plate set by the user according to his own habits, or to tilt or rotate the seat plate to the desired position according to the programmed settings, which position is referred to as set position in the present invention. Optionally, the sensing system is distributed at the bottom of the seat pan, the bottom or side of the support post, the seat arm rest and/or the seat back.

The control system may control the movement system to cause the seat pan to perform a predetermined movement pattern; thereby causing the human body to make corresponding resisting reaction to the movement mode of the seat board. When the resistive force is sufficient to return the seat pan to the set position, the seat will provide a feedback signal, which may be a vibration, sound signal or other signal means. The resistance to bringing the seat plate back to the set position requires the help of the back muscles and the pelvic muscles of the user. That is, the user exercises his or her back muscles and pelvic muscles while resisting the movement of the seat plate. Therefore, by being supplemented with a proper control program, the seat board of the dynamic seat can execute various motion modes such as front-back inclination, lateral inclination and rotation, and correspondingly mobilize the pelvic muscles and/or lower back muscles of a user to move, thereby achieving the effects of massaging and stretching corresponding muscle groups.

The required resistance force, the maximum amplitude of movement of the seat plate and the time interval between different movement patterns may be determined by the user activity pattern detected by the sensor system. The movement pattern and resistance are selected by a suitable algorithm. The kinetic chair may also provide for exercise activity independent of the seat.

The dynamic seat can be in wireless communication with application programs on electronic equipment such as mobile phones and computers. The application may track and transmit sensor data to derive activity patterns, calorie burn, weight and other health parameters. The application program can record and/or analyze and process the health parameters, for example, compare the health parameters in different periods and draw corresponding parameter curves and the like; these parameters may be shared on social media.

The supporting column comprises a supporting ring arranged at the bottom and a movement system arranged on the supporting ring; the movement system comprises a lower rotating ring rotatably connected with the top of the support ring, a transfer ring rotatably connected with the top of the lower rotating ring, an upper rotating ring rotatably connected with the top of the transfer ring and a seat plate rotatably connected with the top of the upper rotating ring. The support ring, the lower rotating ring, the middle rotating ring, the upper rotating ring and the seat plate are rotatably connected through a bearing with a bearing arranged inside.

In some embodiments, each swivel is a tubular structure having a continuous wall having a first height and a second height such that an axis of rotation of a lower cross-section of the swivel does not coincide with an axis of rotation of an upper cross-section; in other embodiments, each rotating ring is composed of a plurality of supports with different heights, the supports are arranged at the bottom of the circular ring structure at equal intervals in the circumferential direction, and the output shaft of the motor is connected to the supports to realize the independent and controlled rotation of the rotating rings.

Preferably, the lower swivel ring is controllable to rotate relative to the support ring; the mid-turn ring is controllable to rotate relative to the lower turn ring, the upper turn ring is controllable to rotate relative to the mid-turn ring, and the seat plate is controllable to rotate relative to the upper turn ring. The controlled rotation is achieved by a number of independent drive units.

An included angle exists between the lower rotating ring, the middle rotating ring and the upper rotating ring and a normal axis of a connecting section at the bottom of the lower rotating ring, the middle rotating ring and the upper rotating ring, and the included angle is defined as a section included angle in the invention. When the seat plate is rotated to an angle alpha inclined in a certain plane, the lower rotary ring rotates by an angle sigma relative to the axis of the support ring₁The rotation angle of the middle rotating ring relative to the normal axis of the lower rotating ring and the connecting surface of the middle rotating ring is sigma₂The rotation angle of the upper rotating ring relative to the normal axis of the middle rotating ring and the connecting surface of the middle rotating ring is sigma₃. To ensure that the seat occupant does not rotate when the seat inclination angle is changed, the seat pan is rotated by a rotation angle σ with respect to the normal axis of the upper swivel ring and the connection surface thereof as a compensation₄. And σ₁、σ₂、σ₃、σ₄Satisfies the following relationship of equation 1:

the rotation is shown as a rotation vector, and in a cartesian coordinate system, α, β, γ are the inclination or torsion angles of the seat plate in different azimuth directions, respectively.

The present invention may transmit torque and rotation through a conventional set of intermeshing gears or gears, or through rolling elements having a high coefficient of friction. Preferably, the driving unit comprises gear rings arranged on the rotating rings, the supporting rings and the seat plate and a motor set matched with the gear rings, wherein the motor set comprises a motor and a gear or a gear set, and the motor is fixed on the inner wall of the rotating ring or the supporting ring at the lower part of the gear ring matched with the motor set or on a motor support independently arranged. The outer wall of the gear ring is fixedly connected with the inner walls of the rotating rings, the supporting rings and the seat plate.

Preferably, the bottom parts of the lower rotating ring, the middle rotating ring and the seat plate are all provided with a protruding driving gear ring, and the top part of the middle rotating ring and the bottom part of the upper rotating ring are provided with connecting gear rings which are partially meshed; the driving gear ring is matched with a gear or a gear set driven by a corresponding motor, so that the driving gear ring can rotate actively; the connecting ring gears are engaged with each other and used for transmitting rotary power.

Or all the bottoms of the rotating rings and the seat plate are provided with protruding driving gear rings, and all the driving gear rings are provided with motor sets matched with the driving gear rings. Wherein the motor at the bottom of the seat plate is only used for executing the rotation movement of the seat plate.

Preferably, the gear or the gear set comprises a planetary gear set, an internal gear, a bevel gear or a combination thereof, and the output shaft of the motor drives the gear ring connected with the motor to rotate through a sun gear, the internal gear or the bevel gear of the planetary gear set, so as to drive the rotating ring connected with the gear ring to rotate.

Preferably, the bearings are arranged on top of the support ring and the respective swivel.

Preferably, the outer diameter of the gear ring is smaller than that of the corresponding rotating ring, so that a small-diameter part protruding out of the cross section of the bottom is formed at the bottom of each rotating ring, and the outer wall of the small-diameter part is the outer wall of the gear ring.

Preferably, the outer wall of the gear ring at the bottom of the upper-stage rotating ring is in interference fit with the inner wall of the bearing at the top of the lower-stage rotating ring or the support ring.

Preferably, the transmission can be realized by replacing the ring gear with an elastic element having a certain friction coefficient, preferably a rubber ring.

Preferably, to compensate for non-coaxial misalignment, a universal joint is also provided between at least one motor and the swivel. The universal joint may be a fitting structure known in the art.

Preferably, the sensing system is arranged between the top of the upper swivel and the seat plate; or further, according to different application scenes of the dynamic seat, a sensing system is also arranged in the support ring, the seat armrest and/or the seat back.

Preferably, the dynamic seat further comprises a power supply, and the power supply is used for supplying electric energy to the control system, the sensing system and the motion system.

Preferably, the motors of the motor sets are stepping motors or servo motors with position feedback signals.

It will be appreciated that the support post of the present invention is able to bend through a range of angles by controlled rotation of the respective swivels, and that the direction of this bending is arbitrary, for example, when the support ring of the support post is placed vertically, by controlling the direction and angle of rotation of the upper, middle and lower three swivels, the upper end of the support post can be bent in a horizontal dimension through any desired angle towards any desired direction. Thereby, the seat board can be driven to incline towards any desired direction and any desired angle, and the inclination in any plane can be realized. When the seat plate continuously performs the action of tilting to a desired angle in a plurality of planes, the undulating rotation of the seat plate in the horizontal plane can be realized.

The seat plate inclination angle is 4 times of the inclination angle (theta) formed by the fall of the first height and the second height of the swivel, for example, the swivel inclination angle (theta) of 10 degrees can enable the seat plate inclination angle to be between 0 and 40 degrees; in another embodiment, a 90 degree angle of inclination of the seat plate can be achieved by selecting a 22.5 degree swivel inclination angle (θ). For dynamic seats, a swivel inclination of 10 degrees is considered sufficient, which is a practical limit, but it is a soft limit. For giving the user a good user experience and safety, it is preferable that the upper limit of the inclination of the seat plate is 40 degrees. Higher and lower tilt angles can be achieved. Larger angles may be used for particular customers and applications.

Compared with the prior art, the invention has the beneficial effects that: since the rotation of each swivel is driven by the motor in the present invention, the tilting direction and the tilting angle of the seat plate are controlled, or the posture of the seat plate is not changed by the change of the center of gravity of the user's body. This feature allows the user to use the kinetic seat of the present invention with ease without causing erroneous judgment that the seat may fall down due to a subconscious posture change. On the other hand, the inclination degree and the inclination direction of the seat plate can be changed at a slower speed through a preset program in the control system, so that the pelvis and lower back muscles of a user are massaged and stretched, and the slow speed allows the user to be self-contained or subconsciously adapted to the change of the posture of the seat plate without being disturbed, so that the same posture is prevented from being kept for a long time, and meanwhile, the disturbance caused by the change of the posture of the seat plate is also avoided. Of course, the dynamic chair of the present invention can also change the inclination degree and the inclination direction of the seat plate at a faster speed according to the command given by the user, for example, the command of increasing the change speed of the inclination degree of the seat plate or the command of rotating the seat plate in the inclination direction, when the user has sufficient psychological preparation.

The dynamic seat can be applied to ergonomic chairs used in offices or families, seat appliances used for rehabilitation training, and supporting hardware facilities for simulating games, video entertainment or training in real situations.

The rotary support system of the invention can be applied to various suitable application scenes such as electronic equipment, electric appliances, exhibition stands, robot arms and the like besides being applied to the ergonomic chair.

Drawings

FIG. 1A is a schematic view of the structure of the support column of the present invention.

FIG. 1B is a schematic view showing the rotation angle of each rotation ring of the support column of the present invention.

Figure 2 is a longitudinal cross-sectional illustration of the support column of figure 1A.

Fig. 3 is a schematic view of the support column in a vertical state.

Fig. 4 is a view showing a state in which the support column is bent.

Fig. 5 is a schematic diagram of a first embodiment of an internal driving structure of a support column.

Fig. 6 is a schematic diagram of a second embodiment of the driving structure inside the supporting column.

Fig. 7 is a schematic diagram of a third embodiment of the driving structure inside the supporting column.

Fig. 8 is a schematic diagram of a fourth embodiment of the driving structure inside the supporting column.

Fig. 9 is a schematic diagram of a fifth embodiment of the driving structure inside the supporting column.

Fig. 10A and 10B are schematic diagrams of a sixth embodiment of a driving structure inside a supporting column.

Fig. 11 is a schematic view of the seat plate of the present invention performing a rotating motion.

Fig. 12 is an illustration of the tilt mode and the rotation mode of the kinetic chair and the movement of the pelvis or lower back muscles driven by the inclination mode and the rotation mode.

In the figure: 1 is a support ring, 2 is a lower rotating ring, 3 is a middle rotating ring, 4 is an upper rotating ring, 5 is a seat plate, 6 is a first bearing, 7 is a second bearing, 8 is a third bearing, 9 is a fourth bearing, 10 is a control system, 11 is a power supply, and 12 is a sensing system; 13 is a driving unit; 14 is a first motor, 15 is a second motor, 16 is a third motor, 17 is a lower driving ring gear, 18 is a middle driving ring gear, 19 is an upper driving ring gear, 20 is a lower connecting ring gear, 21 is an upper connecting ring gear, 22 is a planetary gear set, 23 is a planetary gear carrier, 24 is a bearing sleeve, 25 is a supporting plate, 26 is a fourth motor, 27 is a gear, 28 is a bevel gear, 29 is a fourth driving ring gear, 30 is a universal joint, 31 is a bracket, and 32 is a rubber ring.

Detailed Description

Example 1

Referring to fig. 1-5, there is provided a kinetic seat comprising a seat pan (not shown) and a support post supporting the seat pan; a motion system is integrated on the supporting column, and the motion system can enable the supporting column to rotate locally, so that the supporting column is bent in an oriented and fixed angle manner, and the seat plate is driven to incline in an oriented and fixed angle manner; the motion system is also capable of orienting and angularly rotating the seat plate.

The motion chair further comprises a control system 10 and a sensing system 12, the sensing system 12 being capable of measuring the resistive force exerted by the user on the seat pan in a direction opposite to the direction of movement of the seat pan. The control system 10 may control the movement system to cause the seat pan to perform a predetermined movement pattern; thereby causing the human body to make corresponding resisting reaction to the movement mode of the seat board. By being assisted with a proper control program, the seat board of the dynamic seat can execute various motion modes such as front-back inclination, lateral inclination and rotation, and correspondingly mobilize the pelvic muscles and/or lower back muscles of a user to move, thereby achieving the effects of massaging and stretching corresponding muscle groups.

The dynamic seat further comprises a communication system which is used for realizing wireless communication between the dynamic seat and electronic equipment such as mobile phones and computers. The electronic device is equipped with a corresponding application program that can track and transmit sensor data to derive activity patterns, calorie burn, weight and other health parameters. The application program can also record and/or analyze and process the health parameters, such as comparing the health parameters in different periods and drawing corresponding parameter curves; these parameters may be shared on social media.

As shown in fig. 1-3, the support column comprises a support ring 1, a first bearing 6, a lower support ring 2, a second bearing 7, a middle support ring 3, a third bearing 8, an upper support ring 4, a fourth bearing 9 and a seat plate 5 arranged from bottom to top; the inside a plurality of drive unit 13 that is provided with of support column, lower swivel 2, transfer ring 3, the corresponding respective drive unit 13 that has of last swivel 4 respectively, drive unit can drive swivel 2, transfer ring 3, the rotation ring 4 is independent respectively down and relative rather than adjacent swivel rotation, thereby changes the crooked degree and the crooked direction of support column.

When the seat plate is rotated to an angle alpha inclined in a plane, the lower turn ring is rotated by an angle sigma relative to the support ring axis, as shown in FIG. 1B₁The rotation angle of the middle rotating ring relative to the normal axis of the lower rotating ring and the connecting surface of the middle rotating ring is sigma₂The rotation angle of the upper rotating ring relative to the normal axis of the middle rotating ring and the connecting surface of the middle rotating ring is sigma₃The angle of rotation of the seat plate relative to the normal axis of the upper rotating ring and the connecting surface of the upper rotating ring is sigma₄And σ₁、σ₂、σ₃、σ₄Which satisfies the relationship of the above equation 1 at the time of rotation.

Referring to fig. 5, a lower driving gear ring 17 is fixed at the lower end of the lower rotary ring 2, a middle driving gear ring 18 is fixed at the lower end of the middle rotary ring 3, and an upper driving gear ring 19 is fixed at the lower end of the seat plate 5; a lower connecting gear ring 20 is fixed at the upper end of the middle rotating ring 3, and an upper connecting gear ring 21 is fixed at the lower end of the upper rotating ring 4; the lower coupling ring gear 20 and the upper coupling ring gear are engaged with each other at a point so that the upper swivel 4 is rotated simultaneously when the middle swivel 3 is rotated.

The outer wall of the lower driving gear ring 17 is in interference fit with the inner wall of the first bearing 6; the outer wall of the middle driving gear ring 18 is in interference fit with the inner wall of the second bearing 7; the upper driving gear ring 19 is in interference fit with the inner wall of the fourth bearing 9; the lower end of the upper rotating ring 4 is in interference fit with the third bearing 8. The outer walls of the first to fourth bearings are all fixedly arranged in the bearing sleeve 24, and the bearing sleeve 24 is fixedly connected with the upper end of a supporting ring or a rotating ring below the bearing sleeve.

A first motor 14 is fixedly arranged on the inner wall of the support ring 1 through a support plate 25, a sun gear is fixedly arranged on an output shaft of the first motor 14, a plurality of planet gears connected with the sun gear and the lower driving gear ring 17 are arranged on the periphery of the sun gear, and the sun gear and the planet gears form a planet gear set 22; each rotating ring is provided with a planetary gear set 22 which is arranged independently and has the same driving mode; a planetary gear carrier 23 for fixing the planetary gear is arranged above the planetary gear set 22 of the upper rotating ring 4; a second motor 15 is fixedly arranged on the inner wall of the lower rotating ring 2 through a supporting plate 25 at the level, and the second motor 15 is in driving connection with the middle driving gear ring 18 through a planetary gear set 22; the inner wall of the upper rotating ring 4 is fixedly provided with a third motor 16 through a supporting plate 25 at the level, and the third motor 16 is in driving connection with the upper driving gear ring 19 through a planetary gear set 22.

The seat board 5 is also provided with an independent vibration motor for providing vibration massage for users, and the vibration motor is in communication connection with the control system.

Example 2

Referring to fig. 6, it is different from embodiment 1 in that in this embodiment, the first motor 14, the second motor 15, and the third motor 16 are fixed in a non-centered manner and attached to the side wall, and the output shaft thereof is fixedly provided with a corresponding internal gear 27 directly connected thereto, so as to drive the ring gear and the corresponding rotating ring to rotate in an internal gear driving manner.

Example 3

Referring to fig. 7, unlike embodiments 1 and 2, in this embodiment, the first motor 14, the second motor 15, and the third motor 16 are fixed in a non-centered manner against the side wall, and the output shafts of the second motor 15 and the third motor 16 are perpendicular to the rotation axis of their corresponding rotating rings; and the output shafts of the second motor 15 and the third motor 16 are fixed with bevel gears 28 matched with the bell-mouth-shaped gear rings, the first motor 14 drives the lower driving gear 17 to drive the lower rotating disc 2 to rotate, and the second motor 15 and the third motor 16 respectively drive the bevel gears 28 connected with the second motor 15 and the third motor to drive the middle rotating ring 3 and the upper rotating ring 4 to respectively and independently rotate.

Example 4

Referring to fig. 8, unlike embodiments 1 to 3, the present embodiment further includes a fourth motor 26, and a fourth driving ring gear 29 is provided at the bottom of the upper rotating ring 4, and the lower connecting ring gear 20 and the upper connecting ring gear 21 are eliminated. The output shaft of the fourth electric motor 26 is in driving connection with the fourth driving ring gear 29 via a bevel gear 28. The fourth motor 26 is used for rotating the upper rotary ring 4 under the condition that the gear connection between the lower surface of the seat plate and the upper rotary ring 4 can not be realized.

Example 5

Referring to fig. 9, on the basis of the embodiment 3, in order to compensate for non-coaxial misalignment, a universal joint 30 is further provided between the motor and the swivel. The universal joint 30 may be a fitting structure known in the art.

Example 6

Referring to fig. 10A and 10B, what is different from the embodiments 1-5 is that each swivel structure in this example is composed of a ring and a plurality of supports 31 with different heights, which are uniformly spaced from the bottom of the ring in the circumferential direction, and the bottom of the ring is provided with an elastic element with a certain friction coefficient, specifically a rubber ring 32 in this embodiment. The elastic element replaces a gear ring, and a rotating ring structure formed by the circular ring and the bracket replaces a rotating ring structure with a continuous wall surface, so that the processing cost and the material cost can be greatly reduced, and the weight of the seat is reduced.

Example 7

As shown in fig. 11, when the seat plate is continuously tilted to a desired angle in a plurality of planes in an orientation sequence, the seat plate can be rotated in a horizontal plane in a fluctuating manner. Fig. 11 shows an exemplary embodiment, in which the central horizontal position is a default initial position of the seat plate, and the seat plate can be moved first in the direction of the solid arrow in the figure to rotate clockwise, or can be moved in the direction of the dotted arrow in the figure or other directions that can be implemented as known to those skilled in the art to rotate in a set manner.

Example 8

Referring to fig. 12, the present embodiment provides a method for exercising pelvis and lower back muscles of a human body by using the kinetic seat of the previous embodiment, wherein the support column 1 is kept vertical and not bent, and the seat plate is kept horizontal in an initial state; when the sensing system 13 senses that the seat board is pressed, the pressing signal is fed back to the control system 10, and the control system 10 controls the seat board to move forward and backward according to the pre-stored user information, such as the weight of the user, the habit of sitting, and the like, such as the front seat, the back seat, the half lying seat, and the like; the sensing system 13 can judge the sitting posture of the user according to the sensed pressure position difference; when the pressed signal is matched with the user information, the control system 10 judges the use state of the dynamic seat, waits for receiving a user instruction, and starts timing;

when receiving a user instruction, the control system 10 sends a control signal to the motion system according to the instruction, and the motion system executes a motion mode selected by the user according to the control signal;

when the timing exceeds the preset waiting time and the user instruction is not received, the control system 10 judges that the user keeps the same sitting posture for a long time, and automatically sends a control signal to the motion system according to a preset program, and the motion system executes a preset motion mode according to the control signal.

The movement modes comprise a plurality of movement modes such as front-back tilting, lateral tilting and rotating.

What has been described above are merely some embodiments of the present invention. It will be apparent to those skilled in the art that various changes and modifications can be made without departing from the inventive concept thereof, and these changes and modifications can be made without departing from the spirit and scope of the invention.