Electric rotating rocking cushion
The eccentric arc motion design of the electric rotating rocking cushion solves the problem of lumbar strain caused by prolonged sitting, realizes passive movement of the waist and abdominal muscles and spine, adapts to the exercise needs of different groups of people, reduces noise and disperses the impact of weight.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- 王宇鸿
- Filing Date
- 2019-02-22
- Publication Date
- 2026-07-31
AI Technical Summary
Existing fixed seat cushions, when used for a long time, cause the lumbar spine to bear weight, which can easily lead to strain. The lack of exercise for the waist and abdominal muscles also affects health.
An electric rotating and rocking seat cushion is designed. Through an eccentric arc-shaped operating mechanism, a power shaft operating transmission mechanism, a motion turntable direction-maintaining mechanism, and a motion state control mechanism, the seat cushion can achieve eccentric rotation and arc-shaped rocking motion, adapting to the exercise needs of different groups of people.
It enables passive waist, abdomen, and spine movements while sitting, preventing lumbar spine diseases, adapting to different speeds of movement, reducing noise, and dispersing weight impact.
Smart Images
Figure CN109662498B_ABST
Abstract
Description
Technical Field
[0001] This invention relates to the field of human health and fitness equipment, and in particular to an electric rotating rocking cushion that allows a person sitting on it to passively perform waist, abdominal and spinal exercises through the eccentric rotation and arc-shaped swaying of the cushion. Background Technology
[0002] Currently, common seat cushions are fixed to the chair and cannot rotate; they are simply one of the fixed components of the chair. When in use, they only support the weight of the body and serve a load-bearing function, without any other purpose. Therefore, during long periods of work, study, or sitting, the torso remains in a relatively static posture for extended periods, causing significant stress on the lumbar spine. This can easily lead to strain on the lumbar region. Furthermore, the muscles in the lower back and abdomen, due to prolonged static posture, accumulate fat due to lack of movement, and the abdominal intestines suffer from reduced digestive function due to insufficient exercise, resulting in various health problems. Summary of the Invention
[0003] To overcome the aforementioned health problems faced by sedentary individuals, this invention provides an electrically powered rotating rocking cushion. The structure incorporates an electric rotating rocking cushion that provides both arc-shaped rocking and eccentric rotational motion. The mechanism employs a combined eccentric rotation and arc-shaped rocking motion design. By controlling the forward and reverse rotation and stepless speed adjustment of the motor, the direction and speed of the rotating cushion's movement are altered, allowing users a variety of lumbar and abdominal exercises. This ranges from rapid, high-intensity exercise to gentle, slow rocking, catering to individual needs and promoting healthy spine and abdominal muscles.
[0004] Specifically, the invention includes the following: 1. An electric rotating rocking seat cushion, comprising an eccentric arc-shaped operating mechanism, a power shaft transmission mechanism, a motion turntable direction-maintaining mechanism, and a motion state control mechanism, including an externally replaceable seat cushion, a motion turntable, the seat cushion being composed of the motion turntable and the seat cushion, a main unit front shell, a main unit bottom shell, a rear shell, a rear bottom shell, and a soft backrest fixed to the upper part of the outer front of the rear shell. The eccentric arc-shaped operating mechanism includes: an upper cover plate, a self-aligning ball bearing, an eccentric shaft plate, bolts fastening the motion turntable to the upper cover plate, ball bearings, and a rubber seat. Its characteristic is that: the self-aligning ball bearing generates an angle that changes radially with the main shaft during rotation, causing the motion turntable, fixed to the outer ring of the self-aligning ball bearing, to rock; simultaneously, under the action of the eccentric shaft plate, the motion turntable performs an eccentric rotational motion; the two movements act simultaneously on the motion turntable, causing the motion turntable to perform both arc-shaped oscillation and eccentric circular motion. The power shaft transmission mechanism includes: a power motor, a main unit front shell, a main unit bottom shell, a main shaft bearing A inside the main unit front shell, a main shaft bearing B inside the main unit bottom shell, a main shaft, a main shaft pin, a main shaft pulley, a belt, a power motor pulley, and a power motor shock-absorbing pad. The motion turntable direction-maintaining mechanism includes: a positioning bearing, a positioning bearing fixing screw, a concave rubber cup, and a rotating positioning shaft protruding from the bottom surface of the motion turntable. There are four sets of the same positioning mechanism in the four cardinal directions (north, south, east, and west) on the arc-shaped bottom surface of the motion turntable. The motion state control mechanism consists of a forward / reverse control speed regulator module fixed to the left side of the rear shell. Four ball bearing support positions are located at the four corners of the main unit front shell below the four corners of the motion turntable, with the ball bearings placed inside rubber seats. A bolt sticker is located at the center of the outer surface of the main unit bottom shell.
[0005] 2. The electric rotating rocking cushion described above is characterized in that: a self-aligning ball bearing is fixed at the center position below the rotating disk of the eccentric arc-shaped operating mechanism; the outer edge of the self-aligning ball bearing is fixed to the center of the bottom of the rotating disk by a self-aligning ball bearing fixing screw on the annular protrusion on the arc bottom surface of the rotating disk; with the main shaft angle unchanged, the rotating disk fixed to the outer edge of the self-aligning ball bearing can rotate by tilting radially at an angle relative to the main shaft; the radial angle changes with the change of the arc curve at the bottom of the rotating disk; above the self-aligning ball bearing is a top cover plate, and below is an eccentric shaft plate; the top cover plate, the inner ring of the self-aligning ball bearing, and the eccentric shaft plate are fastened together as a whole by the top cover plate fastening bolts on the top cover plate, together with the ball bearing and rubber seat, forming an eccentric arc-shaped operating mechanism with the rotating disk.
[0006] 3. The electric rotating rocking cushion described above is characterized by: a power shaft transmission mechanism in which power is transmitted from the power motor pulley on the power motor to the main shaft pulley via a belt, and then from the main shaft fixed on the main shaft pulley to the eccentric shaft plate. The eccentric shaft of the eccentric shaft plate is nested on the main shaft, and the eccentric shaft of the eccentric shaft plate is connected to the main shaft via a main shaft pin. The hole on the eccentric shaft for fixing the main shaft pin is an oblong through hole, which allows for dynamic adjustment space for the eccentric shaft to float up and down during installation and operation. The kinetic energy of the power motor is transmitted to the eccentric arc-shaped operating mechanism through the eccentric shaft of the eccentric shaft plate.
[0007] 4. The electric rotating rocking cushion is characterized by: a motion turntable direction-maintaining mechanism, wherein when the motion turntable rotates, the arc-shaped bottom surface of the motion turntable has four sets of raised rotation positioning shafts in the four directions of east, south, west, and north. Each of the rotation positioning shafts has a positioning bearing fixed on it, and the outer ring of each positioning bearing is tightly attached to the inner side of four concave rubber cups on the main unit's front shell. The positioning bearings rotate eccentrically as the motion turntable moves, ensuring that the motion turntable always faces the same direction during operation.
[0008] 5. The electric rotating rocking cushion is characterized in that: the motion control mechanism is composed of a forward and reverse rotation control speed regulator module fixed inside the left side of the rear shell; the rear shell and the rear bottom shell are respectively fixed to the extended surfaces of the main body front shell and the main body bottom shell by screws; a soft backrest is fixed on the upper part of the rear shell in the front view direction; the soft backrest is fixed to the backrest bracket inside the rear shell by bolts; and the circular ring of the backrest bracket is fixed to the upper part of the motor housing.
[0009] 6. The electric rotating rocking cushion is characterized in that: four ball bearing support positions are provided at the four corners of the main unit shell below the four corners of the motion turntable. Each ball bearing support position is equipped with four ball bearings, which slide in contact with the arc-shaped bottom surface of the motion turntable. On the one hand, this allows the motion turntable to swing in an arc along the curve of the arc-shaped bottom surface of the motion turntable, and on the other hand, it can distribute part of the user's weight. The ball bearings are placed in a rubber seat with solid lubricating oil. The protruding end of the concave part of the main unit shell is embedded and fixed to the rubber seat, and it corresponds to the four ground contact feet of the main unit shell. The main unit shell and the four feet of the main unit shell are fastened with screws. The four ball bearings achieve the function of simultaneously distributing part of the user's weight.
[0010] 7. The electric rotating rocking seat cushion is characterized in that: the motor and the forward and reverse rotation control speed regulator are installed in the rear shell, the motor is fixed on the rear extension surface of the main body shell, a power motor shock-absorbing pad is provided between the motor and the rear extension surface of the main body shell, and the motor is fixed to the rear extension surface of the main body shell by four bolts passing through the screw holes of the power motor shock-absorbing pad.
[0011] 8. The electric rotating rocking seat cushion is characterized in that: the main body front shell and the main body bottom shell are fastened together as an integral structure by bolts distributed on the inner raised ridge, and a bolt sticker is attached to the bottom shell surface to cover the bolt holes exposed after the bolts are fastened.
[0012] Technical solution: The technical solution adopted by the present invention to solve its technical problem is: an electric rotating rocking cushion, comprising four major mechanisms: an eccentric arc-shaped operating mechanism, a power shaft operating transmission mechanism, a motion turntable direction maintaining mechanism, and a motion state control mechanism.
[0013] The specific solution adopted is as follows: 1. Preferably, the electric rotating rocking cushion is composed of a device in which the angle of the self-aligning ball bearing changes during rotation, causing the fixed rotating disk to rock, and at the same time, the rotating disk is eccentrically rotated under the action of the eccentric shaft plate. The two movements work together on the rotating disk, so that the rotating disk performs eccentric circular motion while making arc swing.
[0014] 2. Preferably, the electric rotating rocking cushion consists of a self-aligning ball bearing fixed at the center of the lower part of the rotating disk. The outer edge of the self-aligning ball bearing is fixed to the center of the bottom of the rotating disk by a self-aligning ball bearing fixing screw on the annular protrusion on the arc bottom surface of the rotating disk. With the main shaft angle unchanged, the rotating disk fixed to the outer edge of the self-aligning ball bearing can rotate at a radial angle relative to the main shaft. The radial angle changes with the arc curve of the bottom of the rotating disk. Above the self-aligning ball bearing is a top cover plate, and below it is an eccentric shaft plate. The top cover plate, the inner ring of the self-aligning ball bearing, and the eccentric shaft plate are fastened together by the top cover plate fastening bolts on the top cover plate, forming an eccentric arc-shaped operating mechanism together with the ball bearing and rubber seat and the rotating disk. 3. Preferably, the electric rotating rocking cushion is constructed by transmitting power from the power motor pulley on the power motor to the main shaft pulley via a belt, and then from the main shaft fixed on the main shaft pulley to the eccentric shaft plate. The eccentric shaft of the eccentric shaft plate is nested on the main shaft, and the eccentric shaft of the eccentric shaft plate is connected to the main shaft by a main shaft pin. The hole on the eccentric shaft for fixing the main shaft pin is an oblong through hole, which allows for dynamic adjustment space for the eccentric shaft to float up and down during installation and operation. The kinetic energy of the power motor is transmitted to the eccentric arc-shaped operating mechanism through the eccentric shaft plate.
[0015] 4. Preferably, the electric rotating rocking cushion is equipped with a motion turntable direction-maintaining mechanism. When the motion turntable rotates, there are four sets of raised rotation positioning shafts on the arc-shaped bottom surface of the motion turntable in the four directions of east, south, west, and north. Each rotation positioning shaft is fixed with a positioning bearing. The outer edge of each positioning bearing is in close contact with the inner side of four concave rubber cups on the main unit's front shell. As the motion turntable moves, the bearings rotate eccentrically to ensure that the motion turntable always faces the same direction during operation.
[0016] 5. Preferably, the electric rotating rocking cushion is composed of a forward and reverse rotation control speed regulator module fixed inside the left side of the rear shell. The rear shell and the rear bottom shell are respectively fixed to the extended surfaces of the main unit front shell and the main unit bottom shell by screws. A soft backrest is fixed on the top of the rear shell in the front view direction. The soft backrest is fixed to the backrest bracket inside the rear shell by bolts. The circular ring of the backrest bracket is fixed to the upper part of the motor housing.
[0017] 6. Preferably, in the electric rotating rocking cushion, the main unit's front shell has four ball bearing support positions located below the four corners of the motion turntable. Each ball bearing support position is equipped with four ball bearings, which slide in contact with the curved bottom surface of the motion turntable. This allows the motion turntable to swing along the curve of its curved bottom surface and also distributes some of the user's weight. The ball bearings are placed in rubber seats with solid lubricating oil. The protruding end of the concave part of the main unit's front shell, which is embedded and fixed to the rubber seat, corresponds to the four ground-touching feet of the main unit's bottom shell. The main unit's front shell and the four feet of the main unit's bottom shell are fastened with screws. The four ball bearings achieve the effect of simultaneously distributing and supporting some of the user's weight.
[0018] 7. Preferably, the electric rotating rocking cushion consists of a motor and a forward / reverse control speed regulator installed inside the rear shell. The motor is fixed on the rear extension surface of the main unit shell. A power motor shock-absorbing pad is provided between the motor and the rear extension surface of the main unit shell. The motor is fixed to the rear extension surface of the main unit shell by four bolts passing through the screw holes of the power motor shock-absorbing pad.
[0019] 8. Preferably, the electric rotating rocking cushion is a structure in which the components of the power shaft transmission mechanism are orderly fastened together by bolts distributed on the inner raised ridge of the main body and the main body bottom shell. A bolt sticker is affixed to the center of the outer side of the bottom shell to cover the bolt holes exposed after the bolts are fastened.
[0020] The beneficial effects of this invention compared to the prior art are: 1. The electric rotating rocking cushion can provide passive exercise while sitting, studying, or working, allowing the waist muscles, abdomen, and spine to be effectively exercised through the rotation and rocking of the cushion.
[0021] 2. The electric rotating rocking cushion can adjust the rotation speed of the rotating disc through a forward and reverse speed control device, thereby adapting to the exercise needs of different groups of people. It can rotate at a faster speed to achieve the purpose of fitness and strengthening the body, or it can rock slowly and quietly at a low speed to achieve the health care effect of preventing lumbar spine diseases.
[0022] 3. The electric rotating rocking cushion, through the rocking and rotating of the rotating disc, can promote the movement of the abdominal muscles and also allow the lumbar vertebrae to move fully. Ordinary massage machines can only work on muscle tissue and cannot produce relative movement to the bones.
[0023] 4. The electric rotating rocking cushion, through the design of the rubber seat, can effectively reduce the noise of the rotating disc and also reduce the impact of human body weight on the entire device.
[0024] The present invention will be further described below with reference to the accompanying drawings and embodiments.
[0025] Figure 1 This is a perspective view of Embodiment 1 of the present invention.
[0026] Figure 2 This is a left view of Embodiment 1 of the present invention.
[0027] Figure 3 This is a top view of Embodiment 1 of the present invention.
[0028] Figure 4 This is a bottom-view perspective view of Embodiment 1 of the present invention.
[0029] Figure 5 This is a top-exploded view of the right side of Embodiment 1 of the present invention.
[0030] Figure 6 This is a left-side exploded view of Embodiment 1 of the present invention.
[0031] Figure 7 This is a top-exploded view of the left side of Embodiment 1 of the present invention.
[0032] Figure 8 This is an exploded view of the operating mechanism of Embodiment 1 of the present invention.
[0033] Figure 9 This is a cross-sectional view (AA) of Embodiment 1 of the present invention.
[0034] Figure 10 This is a cross-sectional view of Embodiment 1 of the present invention.
[0035] Figure 11 This is a three-dimensional schematic diagram of Embodiment 2 of the present invention.
[0036] Figure 12 This is a cross-sectional view A-A of Embodiment 2 of the present invention.
[0037] Figure 13 This is a cross-sectional view of Embodiment 2B-B of the present invention.
[0038] Figure 14 This is a cross-sectional view of Embodiment 2 of the present invention, C-C.
[0039] Figure 15 This is a D-D cross-sectional view of Embodiment 2 of the present invention.
[0040] Figure 16 This is a cross-sectional view of Embodiment 2 of the present invention, E-E.
[0041] The components include: 1. Main unit front shell; 7. Motion turntable; 8. Self-aligning ball bearing; 9. Eccentric shaft plate; 10. Top cover plate; 11. Top cover plate fastening bolts; 15. Rubber seat; 18. Ball bearing; 19. Rear shell; 20. Main unit bottom shell; 21. Rear bottom shell; 22. Soft backrest; 23. Speed controller module; 24. Backrest bracket; 25. AC power input socket; 27. Positioning bearing fixing screw; 28. Positioning bearing; 29. Main unit bottom shell rubber feet; 30. Rear bottom shell rubber feet; 31. Bolt sticker; 33. Seat cushion; 35. Spindle. 36. Belt pulley; 37. Main shaft; 39. Main shaft bearing B; 41. Main shaft pin; 43. Concave rubber cup; 44. Positioning bearing; 45. Positioning bearing; 56. Positioning rubber cup fixing screw; 60. Main shaft bearing A; 61. Power motor pulley; 62. Belt; 65. Eccentric shaft fixing pin; 66. Self-aligning ball bearing fixing screw; 67. Self-aligning ball bearing fixing screw; 68. Self-aligning ball bearing fixing screw; 74. Power motor shock-absorbing pad; 75. Power motor; 98. Speed control knob; 99. Forward / reverse stop switch. Detailed Implementation
[0042] Example 1: The present invention will be further described below through specific embodiments.
[0043] Reference Figures 1 to 12An electric rotating rocking cushion, in embodiment one, the power motor (75) is designed in a rear-mounted manner. The kinetic energy is transmitted to the main shaft pulley (35) through the belt (62) on the power motor pulley (61). The kinetic energy is then transmitted to the eccentric shaft plate (9) nested on the main shaft (36). The eccentric shaft plate (9) and the upper cover plate (10) are fastened to the inner ring of the self-aligning ball bearing (8) with the upper cover plate fastening bolts (11), generating a circular motion and forming a power shaft operation transmission mechanism to realize the transmission of the power motor's kinetic energy. At the same time, since the outer ring of the self-aligning ball bearing and the moving turntable (7) are fastened together by the self-aligning ball bearing fixing screws (66), (67) and (68), the arc-shaped bottom surface of the moving turntable (7) and the four ball bearings (18) embedded in the main body shell (1) generate an arc-shaped swing, forming an eccentric arc-shaped operation mechanism, so that the cushion realizes eccentric arc-shaped movement. In the top view of the main unit casing (1), four sets of concave rubber cups (41) are embedded in the four cardinal directions. Correspondingly, four sets of protruding directional positioning shafts are set at the relative positions of the four cardinal directions on the bottom surface of the motion turntable (7). Four positioning bearings (43) are fixed on the positioning shafts respectively. The outer edge of the positioning bearing (43) is against the inner edge of the four sets of concave rubber cups (41), and can make circular motion along the inner edge of the four sets of concave rubber cups (41), forming a motion turntable direction holding mechanism, so that the motion turntable (7) always maintains the direction when making eccentric arc motion. The motion state control mechanism is composed of speed adjustment knob (98), forward and reverse stop switch (99), and speed controller module (23), so as to realize the stepless adjustment of the speed of the motion turntable (7) when making eccentric arc motion, and the motion state control of the forward and reverse stop of the motion turntable (7).
[0044] Example 2: The components include: 1. Motion turntable, 2. Swing shaft, 3. Swing shaft seat, 4. Eccentric shaft plate, 5. Main shaft bearing A, 6. Main shaft, 8. Main shaft pulley, 9. Main shaft bearing B, 15. Seat foot, 16. Base shell, 17. Rubber seat, 20. Ball bearing, 21. Chair backrest, 22. Motor pulley, 23. Belt, 24. Power motor, 25. Chair armrest A, 27. Face shell, 29. Swing shaft fastening nut, 30. Swing shaft seat fixing screw, 31. Main shaft face shell, 32. Shaft pin, 51. Power motor protective face shell, 52. Chair backrest angle adjustment shaft, 55. Seat cushion, 58. Speed control knob, 59. Forward / reverse stop switch, 60. AC power input socket.
[0045] The present invention will be further described below through specific embodiments of Example 2.
[0046] Reference Figures 13 to 16Example 2 is a seat with a rocking cushion. The cushion consists of a motion turntable (1) and a cushion pad (55). The movement of the cushion is the same as in Example 1, using an eccentric arc-shaped operating mechanism. The main difference in the structure of Example 2 is that the power motor (24) is designed to be installed below the rotating system. The rocking shaft (2) replaces the self-aligning ball bearing in Example 1. One end of the rocking shaft (2) is a spherical structure, which can cooperate with the spherical concave surface inside the rocking shaft seat (3). It can rotate freely along the radial direction of the rocking shaft (2) at a certain angle. The other end of the rocking shaft (2) is fixed to the center of the motion turntable (1). The rocking shaft (2) fixed on the eccentric shaft plate (4) performs a horizontal eccentric circular motion on one hand, and on the other hand, the arc-shaped bottom surface of the motion turntable (1) and the four ball bearings embedded and fixed on the face shell (27) produce an arc-shaped swinging motion. The speed adjustment knob (58) and the forward / reverse stop switch (59) of the cushion are set on one of the armrests of the seat. The motion turntable (1) adopts a circular disk design. Therefore, the motion turntable direction holding mechanism in Embodiment 1 is omitted from the bottom surface of the motion turntable (1). The other structures in this embodiment are similar to those in Embodiment 1, and will not be described in detail here.
[0047] Obviously, the above embodiments of the present invention are merely examples for clearly illustrating the present invention, and are not intended to limit the implementation of the present invention. The design concept is not limited thereto, and this design concept can also be applied to other objects that need to be installed and use an electric rotating rocking cushion motion structure to produce similar motion. For those skilled in the art, other variations or modifications can be made based on the above description. It is neither necessary nor possible to exhaustively list all embodiments here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention, as well as any non-substantial alterations, should be included within the protection scope of the claims of the present invention.
Claims
1. An electric rotating rocking seat cushion, comprising an eccentric arc-shaped operating mechanism, a power shaft operating transmission mechanism, a motion turntable direction maintaining mechanism, and a motion state control mechanism, including an externally replaceable seat cushion, a motion turntable, the seat cushion being composed of the motion turntable and the seat cushion, a main unit front shell, a main unit bottom shell, a rear shell, a rear bottom shell, and a soft backrest fixed to the upper part of the outer front of the rear shell, wherein the eccentric arc-shaped operating mechanism comprises: an upper cover plate, a self-aligning ball bearing, an eccentric shaft plate, bolts fastening the motion turntable to the upper cover plate, ball bearings, and a rubber seat, characterized in that: The self-aligning ball bearing, during rotation, creates an angle that changes radially with the main shaft, causing the rotating disk, fixed to the outer ring of the self-aligning ball bearing, to oscillate. Simultaneously, under the action of the eccentric shaft plate, the rotating disk undergoes eccentric rotation. These two movements work together to cause the rotating disk to perform both arc-shaped oscillation and eccentric circular motion. The power shaft transmission mechanism includes: a power motor, a main housing, a main housing bottom housing, a main shaft bearing A inside the main housing, a main shaft bearing B inside the main housing bottom housing, a main shaft, a main shaft pin, a main shaft pulley, a belt, and the power motor. The pulley, the shock-absorbing rubber pad of the power motor, and the direction-maintaining mechanism of the motion turntable include: a positioning bearing, a positioning bearing fixing screw, a concave rubber cup, and a rotating positioning shaft protruding on the bottom surface of the motion turntable. The same positioning mechanism has four sets in the four directions of east, west, south and north on the arc bottom surface of the motion turntable. The motion state control mechanism is composed of a forward and reverse rotation control speed regulator module fixed in the left side of the rear shell. Four ball bearing support positions are set at the four corners of the main unit front shell below the four corners of the motion turntable. The ball bearings are placed in the rubber seats. A bolt sticker is set at the center of the outside of the main unit bottom shell. A self-aligning ball bearing is fixed at the center of the lower part of the rotating disk of the eccentric arc-shaped operating mechanism. The outer edge of the self-aligning ball bearing is fixed to the center of the bottom of the rotating disk by the self-aligning ball bearing fixing screw on the annular protrusion on the arc bottom surface of the rotating disk. With the main shaft angle unchanged, the rotating disk fixed to the outer edge of the self-aligning ball bearing can rotate with a radial tilt relative to the main shaft. The radial angle changes with the change of the arc curve at the bottom of the rotating disk. Above the self-aligning ball bearing is a top cover plate and below the eccentric shaft plate. The top cover plate, the inner ring of the self-aligning ball bearing, and the eccentric shaft plate are fastened together by the top cover plate fastening bolts on the top cover plate. Together with the ball bearing and rubber seat, they form the eccentric arc-shaped operating mechanism with the rotating disk. The power shaft transmission mechanism transmits power from the power motor pulley on the power motor to the main shaft pulley via a belt. The main shaft, fixed on the main shaft pulley, then transmits the power to the eccentric shaft plate. The eccentric shaft of the eccentric shaft plate is nested on the main shaft and connected to the main shaft by a main shaft pin. The hole on the eccentric shaft for fixing the main shaft pin is an oblong through hole, which allows for dynamic adjustment of the eccentric shaft during installation and operation. The kinetic energy of the power motor is transmitted to the eccentric arc-shaped operating mechanism through the eccentric shaft plate.
2. The electrically operated rotating rocking cushion according to claim 1, characterized in that: The motion turntable direction-maintaining mechanism has four sets of raised rotation positioning shafts on the arc-shaped bottom surface of the motion turntable in the four directions of east, south, west, and north. Each rotation positioning shaft is fixed with a positioning bearing. The outer ring of each positioning bearing is tightly attached to the inner side of four concave rubber cups on the main body shell. As the motion turntable moves, it also rotates eccentrically to ensure that the motion turntable always faces the same direction during operation.
3. The electric rotary swing seat cushion according to claim 1, characterized in that: The motion control mechanism consists of a forward and reverse speed controller module fixed inside the left side of the rear shell. The rear shell and the rear bottom shell are fixed to the extended surfaces of the main unit front shell and the main unit bottom shell respectively by screws. A soft backrest is fixed on the top of the rear shell in the front view direction. The soft backrest is fixed to the backrest bracket inside the rear shell by bolts. The circular ring of the backrest bracket is fixed to the upper part of the motor housing.
4. The electric rotary swing seat cushion according to claim 1, characterized in that: Four ball bearing supports are located at the four corners of the main unit's front panel, below the four corners of the motion turntable. Each ball bearing support is fitted with four balls that slide in contact with the curved bottom surface of the motion turntable. This allows the motion turntable to swing along the curve of its bottom surface and also distributes some of the user's weight. The balls are placed in rubber seats containing solid lubricant. The protruding ends of the recessed parts of the main unit's front panel, which are embedded in and fixed to the rubber seats, correspond to the four foot positions on the main unit's bottom panel. The main unit's front panel and the four foot positions on the main unit's bottom panel are secured with screws. The four balls effectively distribute and support some of the user's weight simultaneously.
5. The electric rotary swing seat cushion according to claim 1, wherein: The motor and the forward / reverse speed controller are installed inside the rear housing. The motor is fixed on the rear extension surface of the main unit housing. A motor shock-absorbing pad is provided between the motor and the rear extension surface of the main unit housing. The motor is fixed to the rear extension surface of the main unit housing by four bolts passing through the screw holes of the motor shock-absorbing pad.
6. The electric rotary swing seat cushion according to claim 1, wherein: The main unit front cover and the main unit bottom cover are connected and fastened into a single structure by bolts distributed on the inner raised ridges. There is a bolt sticker in the center of the outside of the bottom cover to cover the bolt holes exposed after the bolts are tightened.