A beat assembly and beat device

Abstract

The application provides a rhythm assembly and a rhythm device. The rhythm assembly comprises a vertical rhythm unit, the vertical rhythm unit comprising a vertical rhythm frame and a vertical rhythm driving device; the rhythm assembly further comprises a bearing frame, a rocking driving unit and a transmission rod set; the rocking driving unit comprises a rocking motor and a motion conversion mechanism; the transmission rod set comprises a plurality of transmission rods, both ends of each transmission rod being pivotally connected to the vertical rhythm frame and the bearing frame; the motion conversion mechanism comprises an eccentric part, a swing sleeve and a conversion part fixed to the transmission rod; the eccentric part is drivingly connected to the rocking motor to be driven to rotate; the swing sleeve has an annular fitting part, the annular fitting part and the eccentric part being movably fitted, and the swing sleeve is connected to the transmission rod through the conversion part to convert the rotary motion of the rocking motor into the reciprocating swing of the transmission rod set through the eccentric part, the swing sleeve and the conversion part. The rhythm assembly can provide vertical rhythm massage and rocking massage functions, and enriches the massage action mode.

Description

Technical Field

[0001] This invention relates to the field of massage equipment technology, specifically to a rhythm assembly and rhythm device. Background Technology

[0002] As people become increasingly health-conscious, they are paying more and more attention to daily health maintenance and relaxation. Rhythmic massage devices, due to their ability to simulate natural human movement, promote blood circulation, and relieve muscle fatigue, are gradually becoming popular products in the home health and wellness sector and are increasingly favored by consumers.

[0003] Existing rhythmic massage devices typically include a vertical rhythmic unit, which, through a vertical rhythmic frame and a vertical rhythmic drive device, causes the user to reciprocate rhythmically in a vertical direction, thereby achieving massage and relaxation of the user's body. For example, Chinese patents CN217548478U, CN118680787B, and CN101095644B all disclose such vertical rhythmic structures.

[0004] However, existing rhythmic massage devices of this type can only provide a single rhythmic pattern in the vertical direction, which is relatively monotonous and lacks diversity in massage modes, making it difficult to meet users' needs for multi-dimensional and complex massage movements.

[0005] Therefore, it is necessary to propose a new technical solution to overcome the shortcomings of existing technologies. Summary of the Invention

[0006] The technical problem to be solved by the present invention is to overcome the shortcomings of the prior art and provide a rhythm assembly and a rhythm device.

[0007] This invention provides a rhythm assembly, comprising a vertical rhythm unit, the vertical rhythm unit including a vertical rhythm frame and a vertical rhythm drive device for driving the vertical rhythm frame to perform vertical rhythm; the rhythm assembly further includes: A support frame is used to support the user's weight. A rocking drive unit includes a rocking motor and a motion conversion mechanism. The rocking motor is fixed to a vertical rhythmic frame, and the support frame rocks the user under the drive of the rocking drive unit. A transmission rod assembly includes multiple transmission rods, each of which is pivotally connected at both ends to the vertical rhythm frame and the support frame, and the multiple transmission rods are distributed on the left and right sides of the vertical rhythm frame. The motion conversion mechanism includes an eccentric component, a swing sleeve, and a connector fixed to the transmission rod. The eccentric component is driven to rotate by a rocking motor. The swing sleeve has an annular fitting portion that is movably fitted with the eccentric component. The swing sleeve is connected to the transmission rod through the connector to convert the rotational motion of the rocking motor into the reciprocating oscillation of the transmission rod assembly via the eccentric component, the swing sleeve, and the connector, thereby driving the support frame to reciprocate relative to the vertical rhythm frame.

[0008] Several alternative methods are provided below, but they are not intended as additional limitations on the overall solution above. They are merely further additions or optimizations. Provided there are no technical or logical contradictions, each alternative method can be combined individually with respect to the overall solution above, or multiple alternative methods can be combined with each other.

[0009] Optionally, the connection between the transmission rod and the vertical rhythm frame is located above the connection between the transmission rod and the support frame.

[0010] Optionally, the vertical rhythm frame includes: The first part is connected in transmission to the vertical rhythm drive device; and The second part is located above the first part, and both the left and right sides of the second part are provided with outwardly extending cantilever arms, which form a connection position that is pivotally connected to the transmission rod.

[0011] Optionally, the transmission rod has a certain distance from the first part.

[0012] Optionally, in the vertical direction, the projection of the connection point on the horizontal plane is located outside the projection of the first part on the horizontal plane, so that there is a certain distance between the transmission rod and the first part.

[0013] Optionally, the plurality of transmission rods are symmetrically distributed on the left and right sides of the vertical rhythm frame.

[0014] Optionally, the adapter is connected to two transmission rods respectively, and the two transmission rods are symmetrically distributed on the left and right sides of the vertical rhythm frame.

[0015] Optionally, the oscillating sleeve has a connecting portion, which is pivotally connected to the adapter.

[0016] Optionally, the adapter is connected to the transmission rod via a position adjustment structure configured to adjust the connection position between the adapter and the transmission rod to adjust the swing amplitude of the transmission rod assembly.

[0017] This application also provides a rhythm device, including any of the rhythm assemblies described above.

[0018] This invention discloses a rhythmic assembly and a rhythmic device. When performing vertical rhythmic massage, the vertical rhythmic drive device in the vertical rhythmic unit drives the vertical rhythmic frame to vibrate vertically, thereby causing the rocking drive unit mounted thereon and the support frame pivotally connected via a transmission rod assembly to perform overall vertical rhythmic motion, applying up-and-down massage stimulation to the user. When performing the rocking function, the rocking motor drives the eccentric component to rotate; the eccentric component drives the swing sleeve to move, and the swing sleeve transmits power to the transmission rod fixed to it via an adapter; this transmission rod assembly converts the rotational motion of the eccentric component into reciprocating oscillation around the pivot point, thereby causing the support frame to reciprocate relative to the vertical rhythmic frame.

[0019] In addition to vertical rhythmic massage, the rhythmic assembly offers a rocking massage function, providing users with a variety of options for vertical rhythmic massage, reciprocating rocking, and composite multi-dimensional rhythmic massage combining both. This effectively overcomes the limitation of existing devices having only one type of movement, significantly enriches the massage motion modes, and enhances the overall massage experience. Furthermore, the motor in the rocking drive unit is fixed to the vertical rhythmic frame and vibrates with it. The transmission rods are pivotally connected to the vertical rhythmic frame and the support frame at both ends and are distributed on the left and right sides, significantly simplifying the overall structure and reducing manufacturing costs. Attached Figure Description

[0020] To more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings of the embodiments will be briefly described below. Obviously, the drawings described below only relate to some embodiments of the present invention and are not intended to limit the present invention.

[0021] Figure 1 A schematic diagram of the structure of the seat in one embodiment of the present invention; Figure 2 for Figure 1 Structural diagram of the rhythmic assembly and frame of the middle seat; Figure 3 for Figure 2 Schematic diagram of the central rhythm assembly; Figure 4 for Figure 3 Another structural diagram of the central rhythm assembly; Figure 5 for Figure 3 Another structural diagram of the central rhythm assembly; Figure 6 for Figure 3 Schematic diagram of the vertical rhythm unit; Figure 7 for Figure 3 A schematic diagram of the decomposed structure of the vertical rhythm unit; Figure 8 for Figure 3A structural schematic diagram of the vertical rhythm frame, the support frame, the rocking drive unit, and the transmission rod assembly; Figure 9 for Figure 8 Another structural schematic diagram of the vertical rhythm frame, support frame, rocking drive unit, and transmission rod assembly; Figure 10 for Figure 3 A schematic diagram of the structure of the rocking drive unit.

[0022] Explanation of reference numerals in the attached figures: 100. Rhythmic massage chair; 101. Rhythmic assembly; 102. Chair frame; 10. Fixture; 20. Vertical rhythm unit; 21. Vertical rhythm frame; 211. First part; 212. Second part; 213. Cantilever arm; 214. Connection position; 22. Vertical rhythm drive device; 221. Vertical rhythm motor; 222. Eccentric wheel; 223. Bushing; 224. Driven wheel; 225. Drive shaft; 226. Driving wheel; 227. Transmission belt; 228. Swing arm; 30. Support frame; 31. Connecting rod; 40. Shaking drive unit; 41. Shaking motor; 42. Motion conversion mechanism; 421. Eccentric component; 422. Swing sleeve; 4221. Annular fitting part; 4222. Connecting part; 423. Adapter; 50. Transmission rod assembly; 51. Transmission rod; 52. First pivot; 53. Second pivot; 54. First imaginary plane; 55. Second imaginary plane; 56. Third imaginary plane; 57. Position adjustment structure; 571. Adjustment hole. Detailed Implementation

[0023] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the present invention will be further described in detail below with reference to the accompanying drawings. The components of the embodiments of the present invention described and shown in the accompanying drawings can generally be arranged and designed in various different configurations. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.

[0024] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0025] Unless otherwise defined, the technical or scientific terms used in this patent document shall have the ordinary meaning understood by one of ordinary skill in the art to which this invention pertains. The terms "first," "second," and similar terms used in this patent specification and claims do not indicate any order, quantity, or importance, but are merely used to distinguish different components. Similarly, the terms "an," "a," or "the" do not indicate a quantity limitation, but rather indicate the presence of at least one. The terms "comprising" or "including" indicate that the element or object preceding "comprising" encompasses the element or object listed following "comprising" or its equivalents, and do not exclude other elements or objects. Terms such as "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer" are used only to indicate relative positional relationships. When the absolute position of the described object changes, the relative positional relationship may also change accordingly. These terms are only for the convenience of describing the invention and for simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the invention.

[0026] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0027] like Figures 1 to 10As shown, this application provides a rhythm assembly 101, which includes a vertical rhythm unit 20. The vertical rhythm unit 20 includes a vertical rhythm frame 21 and a vertical rhythm drive device 22 for driving the vertical rhythm frame 21 to perform vertical rhythm. The rhythm assembly 101 also includes a support frame 30, a rocking drive unit 40, and a transmission rod assembly 50. The support frame 30 is used to support the user's weight. The rocking drive unit 40 includes a rocking motor 41 and a motion conversion mechanism 42. The rocking motor 41 is fixed to the vertical rhythm frame 21, and the support frame 30 rocks the user under the drive of the rocking drive unit 40. The transmission rod assembly 50 includes a plurality of transmission rods 51, and the two ends of each transmission rod 51 are pivotally connected to the vertical rhythm frame 21 and the vertical rhythm drive unit 21, respectively. The support frame 30 has multiple transmission rods 51 distributed on the left and right sides of the vertical rhythm frame 21. The motion conversion mechanism 42 includes an eccentric member 421, a swing sleeve 422, and a connector 423 fixed to the transmission rods 51. The eccentric member 421 is connected to the rocking motor 41 for rotation. The swing sleeve 422 has an annular fitting part 4221, which is movably fitted with the eccentric member 421. The swing sleeve 422 is connected to the transmission rod 51 through the connector 423 to convert the rotational motion of the rocking motor 41 into the reciprocating swing of the transmission rod assembly 50 via the eccentric member 421, the swing sleeve 422, and the connector 423, thereby driving the support frame 30 to reciprocate relative to the vertical rhythm frame 21.

[0028] When the rhythm assembly 101 performs vertical rhythm massage, the vertical rhythm drive device 22 in the vertical rhythm unit 20 drives the vertical rhythm frame 21 to generate vertical vibration, which in turn drives the rocking drive unit 40 mounted thereon and the support frame 30 pivotally connected via the transmission rod assembly 50 to perform overall vertical rhythm, applying up-and-down massage stimulation to the user. When the rhythm assembly 101 performs the rocking function, the rocking motor 41 drives the eccentric member 421 to rotate; the eccentric member 421 drives the swing sleeve 422 to move, and the swing sleeve 422 transmits power to the transmission rod 51 fixed thereto via the adapter 423; the transmission rod assembly 50 converts the rotational motion of the eccentric member 421 into reciprocating oscillation around the pivot point, thereby driving the support frame 30 to reciprocate relative to the vertical rhythm frame 21.

[0029] The rhythm assembly 101, in addition to vertical rhythm, provides a rocking massage function, thus offering users a variety of choices for vertical rhythm, reciprocating rocking, and composite multi-dimensional rhythm massage combining both. This effectively overcomes the shortcomings of existing devices with limited movement, significantly enriches the massage action modes, and enhances the overall massage experience. Furthermore, the rocking motor 41 in the rocking drive unit 40 is fixed to the vertical rhythm frame 21 and vibrates with it. The transmission rod 51 is pivotally connected at both ends to the vertical rhythm frame 21 and the support frame 30, and is distributed on the left and right sides, significantly simplifying the overall structure and reducing manufacturing costs.

[0030] In this embodiment, as Figures 2 to 7 As shown, the rhythm assembly 101 also includes a fixed base 10, a vertical rhythm frame 21 movably coupled to the fixed base 10, and a vertical rhythm drive device 22 disposed between the fixed base 10 and the vertical rhythm frame 21. The fixed base 10 is used to contact the ground and can support the entire rhythm assembly 101. The specific structure of the fixed base 10 is not strictly limited; for example, the fixed base 10 can be a rectangular frame structure.

[0031] In this embodiment, as Figures 2 to 7 As shown, the vertical rhythm drive device 22 can adopt a structure in the prior art that can drive the user to move up and down rhythmically and achieve a full-body massage effect; for example, Chinese patents CN217548478U, CN118680787B, and CN101095644B disclose such vertical rhythm structures. In this embodiment, the vertical rhythm drive device 22 includes a vertical rhythm motor 221 fixedly installed to the fixed base 10 and an eccentric wheel 222 that is driven by the vertical rhythm motor 221. The vertical rhythm motor 221 drives the eccentric wheel 222 to rotate, and the eccentric motion of the eccentric wheel 222 is converted into the up and down rhythm of the vertical rhythm frame 21.

[0032] In this embodiment, as Figures 2 to 7 As shown, the vertical rhythm drive device 22 also includes a driven wheel 224, a drive shaft 225, a driving wheel 226, and a transmission belt 227. The driven wheel 224 is fixed to the output shaft of the vertical rhythm motor 221. The drive shaft 225 is rotatably coupled to the fixed base 10 around a fixed axis. The driving wheel 226 and the eccentric wheel 222 are coaxially mounted to the drive shaft 225. The transmission belt 227 is wound between the driven wheel 224 and the driving wheel 226. After the vertical rhythm motor 221 is started, it drives the driven wheel 224 to rotate through the output shaft. The driven wheel 224 drives the driving wheel 226 to rotate through the transmission belt 227, which in turn drives the coaxially mounted drive shaft 225 and the eccentric wheel 222 to rotate together. The eccentric motion of the eccentric wheel 222 is ultimately converted into the up-and-down rhythm of the vertical rhythm frame 21. The drive shaft 225 is mounted to the fixed base 10 through a bearing seat so that the drive shaft 225 can rotate around a fixed axis.

[0033] In this embodiment, as Figures 2 to 7As shown, the drive wheel 226 and the eccentric wheel 222 are arranged axially at intervals along the drive shaft 225, ensuring that the drive wheel 226 and the eccentric wheel 222 do not interfere with each other axially and are independent of each other. The vertical rhythm drive device 22 also includes a bushing 223, which is sleeved on the outer circumference of the eccentric wheel 222 and mounted on the vertical rhythm frame 21, so that when the eccentric wheel 222 rotates, the eccentric motion is transmitted to the vertical rhythm frame 21 through the bushing 223. The drive wheel 226 is located approximately in the middle of the drive shaft 225; there are two eccentric wheels 222, which are respectively located at both ends of the drive shaft 225.

[0034] In this embodiment, as Figures 2 to 7 As shown, the vertical rhythm unit 20 also includes a swing arm 228, one end of which is hinged to the fixed base 10, and the other end is hinged to the vertical rhythm frame 21. When the eccentric wheel 222 drives the vertical rhythm frame 21, the swing arm 228 can constrain the vertical rhythm frame 21 to reciprocate up and down along a preset trajectory, stably converting the rotational motion of the eccentric wheel 222 into the vertical rhythm of the vertical rhythm frame 21, ensuring the stability and reliability of the vertical rhythm. There are four swing arms 228, which are respectively set at the four corners of the vertical rhythm frame 21 to provide balanced constraint support.

[0035] In this embodiment, as Figures 2 to 9 As shown, the specific structure of the vertical rhythm frame 21 is not strictly limited; for example, the vertical rhythm frame 21 can be a frame structure. The vertical rhythm frame 21 is located above the fixed base 10. The vertical rhythm frame 21 includes a first part 211 and a second part 212. The first part 211 is connected to the vertical rhythm drive device 22. The second part 212 is located above the first part 211. Both the left and right sides of the second part 212 are provided with outwardly extending cantilever arms 213, which form a connection position 214 pivotally connected to the transmission rod 51. The cantilever arms 213 extend the pivot point of the transmission rod 51 outward so that the transmission rod 51 and the first part 211 have a certain distance, avoiding interference with the swaying movement of the support frame 30. While ensuring the load-bearing stability, the overall layout is more compact and reasonable, facilitating assembly and maintenance.

[0036] In this embodiment, as Figures 2 to 9 As shown, along the vertical direction, the projection of the connecting position 214 on the horizontal plane is located outside the projection of the first part 211 on the horizontal plane, so that there is a certain distance between the transmission rod 51 and the first part 211, providing a swing space for the support frame 30, effectively avoiding motion interference between the support frame 30 and the vertical rhythm frame 21 during the swinging process, and further improving the smoothness of the swinging motion and the rationality of the structural layout.

[0037] In this embodiment, as Figures 2 to 5 as well as Figures 8 to 9 As shown, the specific structure of the support frame 30 is not strictly limited; for example, the support frame 30 can be a frame structure. A chair frame 102 for users to lie down or sit on is provided on the support frame 30. The chair frame 102 directly supports the user and provides sitting or reclining support. The specific structure of the chair frame 102 is also not strictly limited; it can be configured as a frame structure with a backrest and seat according to actual usage needs. The chair frame 102 can be fixedly installed on the support frame 30 by welding, screwing, or other methods, or it can be integrally formed with the support frame 30 so that the chair frame 102 moves with the support frame 30. A flexible padding layer or covering can also be further configured on the chair frame 102 to improve seating comfort.

[0038] In this embodiment, as Figures 2 to 5 as well as Figures 8 to 9 As shown, during the reciprocating oscillation of the support frame 30 relative to the vertical oscillating frame 21, at least a portion of the transmission rod 51 and at least a portion of the vertical oscillating frame 21 do not extend beyond the front and / or rear sides of the support frame 30. This confines the vertical oscillating frame 21 and the transmission rod 51 within the support frame 30, preventing them from being exposed and interfering with the user or surrounding objects when the support frame 30 oscillates, thus effectively improving safety. It also facilitates the installation of an outer shell or protective cover around the support frame 30, improving the overall appearance of the equipment and increasing the protection level. This makes the overall dimensions of the machine more compact in the front-to-back direction, which is beneficial for installation and daily maintenance. The fact that at least a portion of the transmission rod 51 and at least a portion of the vertical rhythm frame 21 do not extend beyond the front and / or rear sides of the support frame 30 can be understood as: at least a portion of the transmission rod 51 and at least a portion of the vertical rhythm frame 21 do not extend from the front and / or rear sides of the support frame 30; it can also be understood as: at least a portion of the transmission rod 51 and at least a portion of the vertical rhythm frame 21 do not exceed the front and rear boundaries of the support frame 30.

[0039] In this embodiment, as Figures 2 to 5 as well as Figures 8 to 9 As shown, part of the structure of the support frame 30 is located above the vertical rhythm frame 21; the support frame 30 has two connecting rods 31, which are located on the left and right sides of the vertical rhythm frame 21 respectively; the transmission rod 51 located on the same side of the vertical rhythm frame 21 is pivotally connected to the corresponding connecting rod 31.

[0040] In this embodiment, as Figures 2 to 5 as well as Figures 8 to 9As shown, the connection between the transmission rod 51 and the vertical rhythm frame 21 is located above the connection between the transmission rod 51 and the support frame 30. When the rocking drive unit 40 transmits power to the support frame 30 via the transmission rod 51, the transmission rod 51 is in an inclined or vertically suspended posture from top to bottom. The weight of the support frame 30 and the user it carries acts on the connection position 214 on the upper part of the vertical rhythm frame 21 through the transmission rod 51 in the form of tension, forming a stable suspended support structure, which helps to make the rocking motion of the support frame 30 smoother and more flexible.

[0041] In this embodiment, as Figures 2 to 5 as well as Figures 8 to 9 As shown, multiple transmission rods 51 are symmetrically distributed on the left and right sides of the vertical rhythm frame 21, which ensures that the support frame 30 is subjected to balanced forces on both sides during rocking, avoiding swaying or torsion and ensuring smooth movement. One end of each transmission rod 51 is pivotally connected to the vertical rhythm frame 21 via a first pivot 52, and the other end is pivotally connected to the support frame 30 via a second pivot 53. The axis of each first pivot 52 is fixed relative to the vertical rhythm frame 21, and the axis of each second pivot 53 is fixed relative to the support frame 30. The number of transmission rods 51 is not strictly limited; for example, there can be four transmission rods 51, distributed in pairs on the left and right sides of the vertical rhythm frame 21.

[0042] In this embodiment, as Figures 2 to 5 as well as Figures 8 to 9 As shown, the axis of the first pivot 52 is parallel to the axis of the second pivot 53, and together they define the first imaginary plane 54. The first imaginary planes 54 corresponding to at least two transmission rods 51 are arranged in parallel, enabling the transmission rods 51 to oscillate within mutually parallel planes during movement, thereby constraining the motion of the support frame 30. In this embodiment, the first imaginary planes 54 corresponding to all transmission rods 51 are arranged in parallel.

[0043] In this embodiment, as Figures 2 to 5 as well as Figures 8 to 9As shown, among the transmission rods 51 located on the same side of the vertical rhythm frame 21, the axes of the first pivots 52 corresponding to at least two transmission rods 51 define a second imaginary plane 55, and the axes of the second pivots 53 corresponding to at least two transmission rods 51 define a third imaginary plane 56. The second imaginary plane 55 and the third imaginary plane 56 are arranged parallel to each other, and are spaced apart vertically, so that the transmission rods 51 on the same side, together with the vertical rhythm frame 21 and the support frame 30, form a parallel four-bar linkage mechanism. During the shaking process, it can constrain the swing of the support frame 30, effectively preventing the support frame 30 from pitching forward or backward or tilting left or right, ensuring that the user maintains a stable posture when receiving the shaking massage, thereby improving the comfort and safety of the exercise. In this embodiment, the axes of the first pivots 52 corresponding to all transmission rods 51 located on the same side of the vertical rhythm frame 21 jointly define the second imaginary plane 55, and the axes of the second pivots 53 corresponding to them jointly define the third imaginary plane 56.

[0044] In this embodiment, as Figures 2 to 5 as well as Figures 8 to 10 As shown, the adapter 423 is connected to the two transmission rods 51 respectively, and the two transmission rods 51 are symmetrically distributed on the left and right sides of the vertical rhythm frame 21. By using one adapter 423, the transmission rods 51 on the left and right sides can be driven to swing back and forth synchronously, ensuring that the load on both sides of the support frame 30 is evenly stressed and the shaking is coordinated and consistent, avoiding swaying or twisting.

[0045] In this embodiment, as Figures 2 to 5 as well as Figures 8 to 10 As shown, the oscillating sleeve 422 has a connecting part 4222, which is pivotally connected to the adapter 423. The pivotal connection between the oscillating sleeve 422 and the adapter 423 can smoothly convert the rotational motion of the eccentric member 421 into the synchronous oscillation of the transmission rod assembly 50. The transmission path is simple, the structure is compact, and the synchronization accuracy is high, further improving the stability and reliability of the rocking motion. The connecting part 4222 has a rod-shaped structure and is fixedly connected to the annular fitting part 4221.

[0046] In this embodiment, as Figures 9 to 10As shown, the adapter 423 is connected to the transmission rod 51 via a position adjustment structure 57. The position adjustment structure 57 is configured to adjust the connection position between the adapter 423 and the transmission rod 51, thereby adjusting the swing amplitude of the transmission rod assembly 50. The transmission rod 51 swings around its upper first pivot 52. The distance from the connection point of the adapter 423 and the transmission rod 51 to the axis of the first pivot 52 is the driving lever arm. When the height position of this connection point on the transmission rod 51 is changed by the position adjustment structure 57, the lever arm length changes accordingly. Under the same driving stroke, the swing angle of the transmission rod 51 around the first pivot 52 changes accordingly, thereby adjusting the rocking amplitude of the support frame 30. This setting allows the rocking amplitude to be flexibly adjusted according to the weight, feeling preference, or massage needs of different users, improving the device's personalized adaptability and user comfort. Furthermore, it eliminates the need to change the speed of the rocking motor 41 or replace transmission components, resulting in a simple structure and convenient adjustment.

[0047] In this embodiment, as Figures 1 to 4 As shown, the position adjustment structure 57 includes at least two adjustment holes 571 and an adjustment member. The at least two adjustment holes 571 are located on the transmission rod 51 and spaced apart along the length of the transmission rod 51. The adjustment member selectively engages with any one of the adjustment holes 571 and connects to the adapter 423 to fix the adapter 423 at different connection positions on the transmission rod 51. When it is necessary to adjust the swing amplitude, simply loosen the adjustment member, allowing the adapter 423 to move along the transmission rod 51 to the selected adjustment hole 571. Then, insert the adjustment member into the adjustment hole 571 and re-tighten the adapter 423. This changes the fixed position of the adapter 423 on the transmission rod 51, thus adjusting the lever arm length. This configuration allows for multi-level adjustment of the swing amplitude using simple hole selection and tightening operations, resulting in a reliable and cost-effective structure. The adjustment member can be a bolt, and the adapter 423 has a threaded hole for engagement with the bolt.

[0048] like Figures 1 to 10 As shown, this application provides a rhythmic device 100, including the rhythmic assembly 101 in the above embodiments. The rhythmic device can be a massage chair, medical device, or nursing device, etc.

[0049] The above are merely specific embodiments of the present invention, but the scope of protection of the present invention is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in the present invention should be included within the scope of protection of the present invention. Therefore, the scope of protection of the present invention should be determined by the scope of the claims.

Claims

1. A rhythmic assembly comprising a vertical rhythmic unit, the vertical rhythmic unit including a vertical rhythmic frame and a vertical rhythmic drive device for driving the vertical rhythmic frame to perform vertical rhythmic movements; characterized in that, The rhythm assembly also includes: A support frame is used to support the user's weight. A rocking drive unit includes a rocking motor and a motion conversion mechanism. The rocking motor is fixed to a vertical rhythmic frame, and the support frame rocks the user under the drive of the rocking drive unit. A transmission rod assembly includes multiple transmission rods, each of which is pivotally connected at both ends to the vertical rhythm frame and the support frame, and the multiple transmission rods are distributed on the left and right sides of the vertical rhythm frame. The motion conversion mechanism includes an eccentric component, a swing sleeve, and a connector fixed to the transmission rod. The eccentric component is driven to rotate by a rocking motor. The swing sleeve has an annular fitting portion that is movably fitted with the eccentric component. The swing sleeve is connected to the transmission rod through the connector to convert the rotational motion of the rocking motor into the reciprocating oscillation of the transmission rod assembly via the eccentric component, the swing sleeve, and the connector, thereby driving the support frame to reciprocate relative to the vertical rhythm frame.

2. The rhythmic assembly according to claim 1, characterized in that, The connection point between the transmission rod and the vertical rhythm frame is located above the connection point between the transmission rod and the support frame.

3. A rhythmic assembly according to claim 1 or 2, characterized in that, The vertical rhythm frame includes: The first part is connected in transmission to the vertical rhythm drive device; and The second part is located above the first part, and both the left and right sides of the second part are provided with outwardly extending cantilever arms, which form a connection position that is pivotally connected to the transmission rod.

4. The rhythmic assembly according to claim 3, characterized in that, The transmission rod has a certain distance from the first part.

5. A rhythmic assembly according to claim 4, characterized in that, In the vertical direction, the projection of the connection point on the horizontal plane is located outside the projection of the first part on the horizontal plane, so that there is a certain distance between the transmission rod and the first part.

6. The rhythmic assembly according to claim 1, characterized in that, The multiple transmission rods are symmetrically distributed on the left and right sides of the vertical rhythm frame.

7. A rhythmic assembly according to claim 1 or 6, characterized in that, The adapter is connected to two transmission rods, which are symmetrically distributed on the left and right sides of the vertical rhythm frame.

8. A rhythmic assembly according to claim 1, characterized in that, The oscillating sleeve has a connecting portion, which is pivotally connected to the adapter.

9. A rhythmic assembly according to claim 1, characterized in that, The adapter is connected to the transmission rod via a position adjustment structure configured to adjust the connection position between the adapter and the transmission rod to adjust the swing amplitude of the transmission rod assembly.

10. A rhythmic device, characterized in that, Includes the rhythm assembly as described in any one of claims 1 to 9.

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