Horizontal law mover and suspension system thereof

Abstract

The invention discloses a horizontal rhythm machine and a suspension system thereof. The horizontal rhythm machine comprises a fixing frame and a rhythm frame suitable for bearing a user, and the rhythm frame is combined to the fixing frame through a linear sliding device; the linear sliding device comprises a horizontal rhythm mechanism which comprises a driving rod performing reciprocating rhythm along a horizontal axis, a supporting device used for supporting the driving rod and a driving seat fixedly connected to the driving rod; the bidirectional inertia suppression mechanism is configured to apply damping force opposite to the inertia force to the rhythm frame when the movement direction of the rhythm frame is switched so as to suppress slippage of a user relative to the rhythm frame caused by sudden acceleration change of the rhythm frame; wherein the bidirectional inertia suppression mechanism comprises at least one pair of elastic bodies which are arranged at intervals along the horizontal axis, and the at least one pair of elastic bodies are configured to be installed between the rhythm frame and the driving seat in a pre-compression mode so as to eliminate the idle stroke of the driving seat; in the moving direction of the rhythm frame, when the first elastic body located on the front side of the pair of elastic bodies generates axial compression deformation, the second elastic body located on the rear side synchronously generates equivalent elongation deformation, so that the rhythm frame stably reciprocates. According to the horizontal rhythm machine and the suspension system thereof, impact and vibration generated by the rhythm machine in the movement process are effectively relieved, the comfort level and safety of a user are improved, and the risk of sports injury possibly caused by vibration is reduced.

Description

Technical Field

[0001] This invention relates to the field of rhythmic motion technology, and more specifically, to a horizontal rhythmic motion and its suspension system. Background Technology

[0002] In the field of rhythmic motion technology, traditional rhythmic motion devices typically employ a rigid connection drive method to achieve motion. While this rigid connection-driven rhythmic motion device can achieve basic rhythmic functions, it has some obvious limitations in practical applications.

[0003] First, rigidly connected vibration motors are unstable during operation, especially during state transitions, where they are prone to significant shocks and vibrations. Lacking effective countermeasures, these shocks directly impact user comfort and safety, particularly for users who require prolonged or high-intensity use of the vibration motor. Such shocks can lead to discomfort or even sports injuries.

[0004] Secondly, rigid connection driven rhythmic motion is also lacking in terms of stability and flexibility. The rigid connection structure is prone to causing the rhythmic motion to be unstable under sudden acceleration, which affects the motion effect.

[0005] In summary, existing technologies fail to effectively address the operational instability issues arising during the motion of the dynamic motor, particularly during direction switching (i.e., acceleration / deceleration transitions), where effective measures are lacking. This not only affects the operational stability and lifespan of the dynamic motor but also limits its application effectiveness under complex working conditions. Therefore, developing a suspension system for a horizontal dynamic motor with superior performance is of paramount importance. Summary of the Invention

[0006] In view of this, the purpose of the present invention is to provide a horizontal rhythm motor and its suspension system, which effectively solves the problem of user slippage caused by the impact and vibration generated during the movement of the rhythm motor, improves the operational stability and service life of the rhythm motor, and expands its application effect in complex working conditions.

[0007] To achieve the above objectives, in a first aspect, the present invention provides a suspension system for a horizontal rhythmic device, comprising a fixed frame and a rhythmic frame adapted to support a user, the rhythmic frame being coupled to the fixed frame via a linear sliding device; characterized in that the linear sliding device comprises: A horizontal rhythmic mechanism includes a rhythmic rod fixed to the rhythmic frame, a drive rod that reciprocates along a horizontal axis, a support device for rolling support of the drive rod, and a drive seat fixed to the drive rod. The rhythmic rod is spaced apart from the drive rod and slidably connected to the drive seat. A bidirectional inertia suppression mechanism is configured to apply a damping force opposite to the inertial force to the rhythm frame when the direction of movement of the rhythm frame changes, so as to suppress the sudden acceleration of the rhythm frame from causing the user to slip relative to the rhythm frame. The bidirectional inertia suppression mechanism includes at least one pair of elastic bodies spaced apart along the horizontal axis. Each pair of elastic bodies is configured to be pre-compressed and mounted between the rhythm frame and the drive seat to eliminate the idle travel of the drive seat. In the direction of motion of the rhythm frame, when the first elastic body on the front side of the pair of elastic bodies undergoes axial compression deformation, the second elastic body on the rear side simultaneously undergoes an equal amount of elongation deformation, so that the rhythm frame reciprocates stably.

[0008] Through the above technical solution, 1. Existing rhythmic motors often experience sudden acceleration changes due to inertial force when switching motion directions, leading to user slippage and equipment impact. This solution innovatively employs a pair of pre-compressed springs to form a bidirectional inertial suppression mechanism. Utilizing the reverse deformation characteristics of the springs, the inertial force is converted into elastic potential energy in real time. When the rhythmic frame changes motion direction, the elastic force on the compression side increases (resisting sudden acceleration changes), while the elastic force on the extension side decreases (releasing elastic potential energy). The combined force of these two forces forms a damping force opposite to the inertial force. The two forces work together to form a damping force opposite to the inertial force, offsetting the impact effect of the inertial force and smoothing the acceleration curve. This design achieves dynamic, bidirectional inertial force suppression, fundamentally breaking through the limitations of traditional methods and significantly improving the safety and stability of the rhythmic motor's operation. Simultaneously, compression deformation stores kinetic energy as elastic potential energy, and extension deformation releases some energy, forming a dynamic energy cycle and reducing the direct impact of mechanical energy on the user. 2. This design pre-compresses a pair of elastomers between the rhythm frame and the drive seat, eliminating the drive seat's idle travel and allowing the driving force to act on the rhythm frame instantly and efficiently, enabling it to respond quickly to the drive seat's movement. When the drive seat moves smoothly and at a constant speed, the rhythm frame maintains synchronous movement with the drive seat under the damping force of the bidirectional inertia suppression mechanism. When the drive seat changes direction, the damping force reduces the inertial impact of the rhythm frame, lowering the risk of slippage for the user. Simultaneously, the symmetrical arrangement and specific connection method of the springs ensure uniform force distribution during the rhythm frame's movement, effectively balancing lateral forces in conjunction with the spring's reverse deformation mechanism. This design not only solves the idle travel problem but also further improves the smoothness of the rhythm motor's movement, avoiding the "no-load-load" switching impact caused by traditional mechanical backlash. 3. The stiffness of the compressed side elastomer increases with deformation, while the stiffness of the elongated side decreases. However, the total stiffness remains dynamically balanced due to the equal deformation, preventing the rhythm frame from deflecting due to unilateral stiffness changes. 4. The bidirectional inertial suppression mechanism and the horizontal rhythmic mechanism do not work independently but collaboratively. The horizontal rhythmic mechanism ensures the precise direction of motion of the rhythmic frame, providing a stable foundation for inertial suppression; the bidirectional inertial suppression mechanism plays a role when the direction of motion changes, reducing the impact of shocks on the horizontal rhythmic mechanism. Through redundant safety design, if the elastic element on one side fails, the other side can still provide some damping force, reducing the risk of complete system loss of control. Working together, from the two key levels of guidance and damping, the horizontal rhythmic mechanism only undertakes the guiding function, while the inertial suppression mechanism independently controls the damping force, avoiding the wear caused by the guide components bearing compound loads in traditional single-rail systems, systematically solving the stability and lifespan problems during the movement of the rhythmic mechanism. This multi-mechanism collaborative innovative design, different from the mode of independent operation of each component in existing technologies, achieves the technical effect of synergy.5. The dual-guide structure of the linear sliding device improves the rapid response to sudden changes in the direction of the drive rod through the rolling connection between the drive rod and the support device. The rhythm frame and the sliding seat are slidably connected together with the damping of at least one pair of elastic bodies, which improves the effect of inertia suppression and reduces the discomfort caused to the user by sudden changes in direction.

[0009] In conjunction with the first aspect, a further technical solution is provided, wherein the rhythm frame includes a first rhythm seat and a second rhythm seat arranged in pairs, and the horizontal rhythm mechanism includes a first drive seat and a second drive seat arranged in pairs; the first elastic body is clamped and fixed between the first drive seat and the first rhythm seat, and the second elastic body is clamped and fixed between the second drive seat and the second rhythm seat.

[0010] Through the above technical solution, the arrangement of the first and second rhythmic seats ensures the stability of the spring's axis during compression and extension, preventing spring misalignment from affecting the damping effect. Simultaneously, this connection method facilitates spring installation and replacement, improves maintenance convenience, and allows the spring's damping effect to act more efficiently on the rhythmic frame. This ensures uniform force distribution on the rhythmic frame during movement, and, combined with the spring's reverse deformation mechanism, effectively balances lateral forces, further enhancing the stability of the rhythmic motor under complex motion conditions, while ensuring the full utilization of the damping effect of the bidirectional inertia suppression mechanism.

[0011] In conjunction with the first aspect, a further technical solution is provided, wherein the rhythm frame includes a first rhythm seat and a second rhythm seat arranged in pairs, the drive seat is disposed between the first rhythm seat and the second rhythm seat, the first elastic body is clamped and fixed between the drive seat and the first rhythm seat, and the second elastic body is clamped and fixed between the drive seat and the second rhythm seat.

[0012] In conjunction with the first aspect, a further technical solution is that the rhythm frame also includes at least one rhythm rod that rhythmically moves along the horizontal axis, and the first rhythm seat and the second rhythm seat are fixedly connected to the rhythm rod.

[0013] In conjunction with the first aspect, a further technical solution is that a guide seat adapted to the rhythmic rod and capable of guiding the rhythmic rod to perform rhythmic movements is fixedly connected to the drive rod, and the guide seat is integrally or separately disposed from the drive seat.

[0014] In conjunction with the first aspect, a further technical solution is that the guide seat and the drive seat are integrally formed, with the drive seat located above the guide seat and the elastic body pressing against the drive seat.

[0015] In conjunction with the first aspect, a further technical solution is to separate the guide seat and the drive seat, with the drive seat and the guide seat fixedly connected to different positions on the drive rod.

[0016] In conjunction with the first aspect, a further technical solution is provided: the supporting device includes: Support base fixed to the fixed frame; and Multiple rolling elements are rotatably mounted on the support base; A linear sliding space is constructed between the plurality of rolling elements to define the reciprocating motion of the drive rod, the drive rod passing through the linear sliding space and maintaining a certain gap with the support base.

[0017] Through the above technical solution, multiple rolling elements are arranged circumferentially along the drive rod, which disperses the load, avoids local wear, reduces the sliding resistance on various circumferential surfaces, and enhances the smoothness of the drive rod's movement; at the same time, it further reduces sliding resistance, reduces energy loss, and improves the stability and efficiency of the actuator's operation.

[0018] In conjunction with the first aspect, a further technical solution is to provide a noise reduction component between the rolling element and the drive rod, wherein the noise reduction component is disposed on the contact surface of the rolling element and / or the drive rod.

[0019] Through the above technical solutions, the noise reduction component effectively absorbs the vibration and noise generated by the rolling friction between the rolling component and the drive rod, reducing the operating noise of the rhythm motor; at the same time, the reduced vibration helps to improve the motion accuracy of the rhythm motor and the service life of the components.

[0020] In conjunction with the first aspect, a further technical solution is that the noise reduction component is disposed on the rolling component, and the noise reduction component is a plastic component fixedly connected to the rolling end of the rolling component, and the rolling component abuts against the drive rod through the plastic component.

[0021] Through the above technical solutions, the noise reduction component made of plastic material can buffer minor vibrations and suppress noise generation due to its good elastic deformation ability; the noise reduction component is fixedly connected to the rolling end of the rolling component, which reduces the friction noise between the rolling end and the drive rod at the contact surface, effectively reducing operating noise and improving the user experience and application range of the rhythm machine.

[0022] In conjunction with the first aspect, a further technical solution is that the noise reduction component is disposed on the drive rod, and the noise reduction component is a plastic sheet or a copper sheet fixedly connected to the drive rod.

[0023] The above technical solution involves placing the noise reduction component on the drive rod, utilizing the wear-resistant and shock-absorbing properties of the plastic or copper sheet to absorb the vibration and noise generated by the contact between the rolling component and the drive rod; the fixed connection method ensures the stability of the noise reduction component, continuously reducing the operating noise of the motor and meeting the noise control requirements under different working conditions.

[0024] In conjunction with the first aspect, a further technical solution involves forming at least three outer rolling planes extending along the rhythmic direction of the drive rod on its outer peripheral surface. Each outer rolling plane faces a different direction. The number of outer rolling planes and the number of rolling elements are set such that for each outer rolling plane, at least one rolling element is opposite it. Each rolling element abuts against the outer rolling plane in such a way that it rolls along the opposite outer rolling plane in the rhythmic direction of the drive rod.

[0025] In conjunction with the first aspect, a further technical solution is that multiple rolling elements are arranged along the extension direction of the drive rod. When the drive rod slides relative to the guide seat, it drives at least one of the rolling elements in the extension direction of the drive rod to rotate. This arrangement can provide effective rolling support for the drive rod during sliding, further reducing sliding resistance.

[0026] In conjunction with the first aspect, a further technical solution is that the first elastic body and the second elastic body are configured as a cylindrical spring or a rubber column. In a further technical solution, the elastic body is a cylindrical spring or a rubber column, and the rubber column includes a rubber body and connectors respectively embedded at both ends of the rubber body. The connectors include a metal nut and a metal baffle, and the metal baffle is disposed outside the metal nut to facilitate pressing against the rhythmic seat or drive seat.

[0027] Specifically, when rubber columns are used, the rubber body serves as the main deformation element, effectively absorbing and releasing energy by utilizing its excellent elasticity and fatigue resistance.

[0028] Meanwhile, the metal nuts and metal baffles at both ends of the rubber body not only facilitate a stable connection between the rubber column and the rhythm seat and drive seat, but also ensure the stability and reliability of the connection through the effective pressure of the metal baffles, preventing the elastomer from shifting and loosening during the movement, thereby ensuring the damping effect of the bidirectional inertia suppression mechanism.

[0029] Through the above technical solutions, the cylindrical spring achieves precise damping effect with its high elastic coefficient, and the rubber column absorbs high-frequency vibration and reduces noise using viscoelasticity. Both have excellent fatigue resistance, which can not only meet the stability requirements under different working conditions, but also effectively extend the service life of the suspension system and ensure the long-term effective operation of the motor.

[0030] Furthermore, the portion of the elastomer positioned between the metal nuts at both ends is configured as a deformation segment. This deformation segment has a Shore hardness of 50-90 HA and an aspect ratio of 1-4. This design allows the deformation segment to deform uniformly under axial compression or elongation, effectively absorbing and releasing energy, thus achieving a good damping effect. The Shore hardness range (50-90 HA) ensures that the deformation segment has sufficient elasticity to absorb impact energy while maintaining sufficient rigidity to avoid performance degradation due to excessive deformation. Simultaneously, the aspect ratio design (1-4) further optimizes the mechanical properties of the deformation segment, enabling it to deform more stably under external forces, thereby improving the stability and reliability of the bidirectional inertia suppression mechanism.

[0031] In a second aspect, the present invention provides a horizontal rhythmic motion device, including a suspension system for the horizontal rhythmic motion device of the first aspect.

[0032] The above technical solution integrates innovative suspension system technology into the horizontal pulsator, enabling the pulsator to maintain smooth and low-noise operation during starting, speed change, and reversing. The bidirectional inertia suppression mechanism, horizontal pulsator mechanism, rolling elements, and noise reduction components work together to significantly improve the reliability and service life of the pulsator and expand its application range in complex working conditions.

[0033] In conjunction with the second aspect, a further technical solution also includes a drive mechanism, the fixed end of which is connected to the fixed frame, and the drive end of which is connected to the drive seat. When the drive mechanism drives the drive seat to change its direction of motion, the rhythm frame maintains its direction of motion unchanged based on the damping effect of the bidirectional inertia suppression mechanism.

[0034] In conjunction with the second aspect, a further technical solution is provided: when the drive mechanism drives the drive seat to change its direction of motion, the dynamic damping deformation of the spring converts the kinetic energy of the drive seat into elastic potential energy, thereby making the operation more stable and suppressing sudden changes in acceleration; after the drive seat completes the direction change, the spring in the bidirectional inertia suppression mechanism releases the stored elastic potential energy, which forms a synergistic force with the driving force output by the drive mechanism, driving the rhythm frame to run smoothly in the new direction.

[0035] Through the above technical solution, the drive mechanism and the bidirectional inertia suppression mechanism are linked. When the drive seat changes the direction of movement, the damping effect of the spring keeps the rhythm frame moving continuously, avoiding impact caused by sudden stops and turns. This optimizes the motion control performance of the rhythm machine, avoids discomfort caused by sudden changes in direction, and improves the user's comfort.

[0036] In conjunction with the second aspect, a further technical solution is that the suspension system of the horizontal rhythm motor is configured as two sets, and the two sets of suspension systems of the horizontal rhythm motor are set at intervals.

[0037] The above technical solution, with two sets of horizontally rhythmic suspension systems spaced at intervals, makes the horizontally rhythmic motor run more stably.

[0038] In summary, the present invention has at least one of the following beneficial technical effects: 1. Through the synergistic effect of the bidirectional inertial suppression mechanism and the linear sliding device, the impact and vibration problems of the horizontal pulsator during the motion process are effectively solved, significantly improving the operational stability and service life of the equipment, while expanding its application effect under complex working conditions.

[0039] 2. The damping effect reduces the impact force on the internal components of the beater, reduces the wear and failure rate of the components, thereby improving the overall stability and reliability of the beater and extending its service life.

[0040] 3. Provides a smoother and more comfortable rhythmic experience during exercise, while reducing noise generation, creating a more pleasant user environment and enhancing user satisfaction and willingness to use the rhythm device.

[0041] 4. Through collaborative innovation of multiple technical features, we break through the technical bottlenecks of traditional rhythm motors, such as large impact, high noise, and short lifespan, and form a systematic solution that integrates damping, guidance, drag reduction, and noise reduction, providing a new direction for the development of rhythm motor technology. Attached Figure Description

[0042] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on the provided drawings without creative effort.

[0043] Figure 1 This is a three-dimensional structural schematic diagram of the suspension system of the horizontal pulsator of the present invention in a first embodiment. Figure 2 This is a schematic diagram of the connection structure of the suspension system of the horizontal pulsator of the present invention in a first embodiment. Figure 3 This is a schematic diagram of the connection structure of the rhythm frame, drive seat, and bidirectional inertia suppression mechanism in the first embodiment of the suspension system of the present invention; Figure 4 for Figure 3 A schematic diagram of the structure of a spring in its disassembled state; Figure 5 for Figure 4 Enlarged structural diagram of area A in the middle; Figure 6 This is a partial structural diagram of the horizontal rhythmic mechanism; Figure 7 This is a three-dimensional structural diagram of the support base; Figure 8 This is an exploded structural diagram of one of the rolling elements in the support base. Figure 9 This is a schematic diagram of the three-dimensional structure of the rolling element; Figure 10 This is a schematic diagram of the second embodiment of the suspension system of the horizontal pulsator of the present invention; Figure 11 This is a three-dimensional schematic diagram of a rubber column; Figure 12 This is a cross-sectional view of the rubber column; Figure 13 This is a schematic diagram of the structure of the horizontal rhythmic motor of the present invention.

[0044] Figure label: 100. Suspension system; 1. Fixing frame; 2. Rhythmic rod; 21. First rhythmic seat; 22. Second rhythmic seat; 3. Bidirectional inertia suppression mechanism; 31. First elastic body; 32. Second elastic body; 33. Rubber column; 34. Connector; 341. Metal nut; 4. Linear sliding device; 41. Drive rod; 42. Support seat; 421. Slide groove; 422. Notch; 423. Through hole; 43. Drive seat; 431. First drive seat; 432. Second drive seat; 44. Roller; 441. Rotating shaft; 4412. Fixing hole; 442. Wheel body; 443. Noise reduction component; 45. Guide seat; 5. Drive mechanism. Detailed Implementation

[0045] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0046] 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.

[0047] In the description of this invention, it should be understood that the terms "upper", "lower", "left", "right", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention and 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. Therefore, they should not be construed as limitations on this invention.

[0048] This invention relates to a horizontal vibration motor and its suspension system, aiming to solve the problems of impact and vibration generated during the movement of existing vibration motors, improve the operational stability and service life of the vibration motor, and expand its application in complex working conditions. The technical solution of this invention is described in detail below with reference to the accompanying drawings and specific embodiments. Unless otherwise specified, the features in the following embodiments can be combined with each other.

[0049] Example 1: Please see Figures 1-9 This embodiment discloses a suspension system 100 for a horizontal rhythmic motion device, including a fixed frame 1, a rhythmic frame suitable for supporting the user, and a linear sliding device. The rhythmic frame is fixedly connected to at least one rhythmic rod 2 that rhythmically moves along a horizontal axis. The rhythmic rod 2 is connected to the fixed frame 1 through the linear sliding device 4 to realize reciprocating motion in the direction of the horizontal axis.

[0050] The linear sliding device includes: A horizontal rhythmic mechanism includes a rhythmic rod 2 fixed to the rhythmic frame, a drive rod 41 that reciprocates along a horizontal axis, a support device for supporting the drive rod 41, and a drive seat 43 fixed to the drive rod 41; and A bidirectional inertia suppression mechanism is configured to apply a damping force opposite to the inertial force to the rhythm lever 2 when the direction of movement of the rhythm lever 2 changes, so as to suppress the sudden acceleration of the rhythm lever 2 from causing the user to slip relative to the rhythm frame. The bidirectional inertia suppression mechanism includes at least one pair of elastic bodies arranged at intervals along a horizontal axis. Each pair of elastic bodies is configured to be pre-compressed and installed between the rhythm frame and the drive seat to eliminate the idle travel of the drive seat 43. In the direction of motion of the rhythm frame, when the first elastic body 31 located on the front side of a pair of elastic bodies undergoes axial compression deformation, the second elastic body 32 located on the rear side simultaneously undergoes equal elongation deformation, so that the rhythm frame can reciprocate rhythmically in a stable manner.

[0051] Please see Figure 1 and Figure 2The linear sliding device 4 includes a horizontal rhythmic mechanism and a bidirectional inertia suppression mechanism 3. The horizontal rhythmic mechanism includes a drive rod 41 that reciprocates along a horizontal axis, a support seat 42 for supporting the drive rod 41, and a drive seat 43 fixed to the drive rod 41. The support seat 42 is fixed to the fixing frame 1. In this embodiment, there are two drive seats 43, which are respectively disposed at both ends of the drive rod 41. The drive seats 43 are slidably connected to the rhythmic rod 2. The drive seats 43 and the rhythmic rod 2 are connected by the bidirectional inertia suppression mechanism 3, which is a spring. Both the rhythmic rod 2 and the drive rod 41 are straight rods, and their length directions are parallel, both sliding along the horizontal axis.

[0052] Please see Figure 2 and Figure 3 A first rhythmic seat 21 and a second rhythmic seat 22 are fixed to the rhythmic rod 2. The first rhythmic seat 21 and the second rhythmic seat 22 are fixed to the mounting plane of the rhythmic rod 2 by bolts or rivets. The bidirectional inertia suppression mechanism 3 includes a pair of helical cylindrical springs: a first elastic body 31 and a second elastic body 32, which are arranged at intervals along a horizontal axis. One end of the first elastic body 31 is connected to the first rhythmic seat 21 of the rhythmic rod 2, and the other end is connected to the corresponding first drive seat 431. One end of the second elastic body 32 is connected to the second rhythmic seat 22 of the rhythmic rod 2, and the other end is connected to the corresponding second drive seat 432. The first elastic body 31 and the second elastic body 32 are pre-compressed. In this embodiment, the initial compression is 5mm to 20mm, which can provide 40 kgf (400N) to ensure that the drive seat 43 has no idle stroke. In actual application, the initial compression of the first elastic body 31 and the second elastic body 32 can be adjusted according to requirements.

[0053] When the rhythm lever 2 moves in one direction, the first elastic body 31 located in front of the movement direction undergoes axial compression deformation, while the second elastic body 32 located behind it undergoes equal elongation deformation simultaneously. The resultant force of the two springs forms a damping force that is opposite to the inertial force, effectively suppressing sudden changes in the acceleration of the rhythm lever 2, reducing the risk of slippage when the user switches the direction of movement, and improving the safety and stability of the rhythm motor operation.

[0054] Please see Figure 4 and Figure 5 The installation method of the spring is described in detail. Taking the second elastic body 32 as an example, in this embodiment, the first rhythmic seat 21 and the first drive seat 431 are provided with threads adapted to the pitch of the first elastic body 31, and the two ends of the first elastic body 31 are threadedly connected to the first rhythmic seat 21 and the first drive seat 431, respectively. Another alternative embodiment is that the first rhythmic seat 21 and the first drive seat 431 are provided with a column adapted to the inner diameter of the first elastic body 31, and the first elastic body 31 is sleeved on the column and axially fixedly connected to the first rhythmic seat 21 and the first drive seat 431.

[0055] Please see Figures 6-9 The sliding contact end between the drive rod 41 and the support base 42 is rectangular. The support base 42 is provided with a rectangular groove 421. A rolling element for reducing sliding friction is provided between the support base 42 and the drive rod 41. In this embodiment, the rolling element is a roller 44, which is rotatably connected to the support base 42. A through hole 423 is provided on the side wall of the support base 42. The roller 44 passes through the through hole 423 and its rolling end is located in the groove 421. The rolling end of the roller 44 is used to abut against the drive rod 41. When the drive rod 41 slides relative to the support base 42, it drives the contacting roller 44 to rotate, thereby converting the sliding friction between the support base 42 and the drive rod 41 into rolling friction, reducing wear and energy consumption. A polyurethane plastic part 443 is provided on the contact surface between the roller 44 and the drive rod 41 as a noise reduction part, reducing friction noise and improving the user experience of the rhythm machine.

[0056] Please see Figure 6 and Figure 7 The outer peripheral surface of the drive rod 41 has at least three outer rolling planes extending along the length of the drive rod 41; in this embodiment, there are four outer rolling planes. The number of outer rolling planes and the number of rollers 44 are set such that at least one roller 44 is opposite to each outer rolling plane. A roller 44 is provided between the support base 42 and the drive rod 41 to reduce sliding resistance. The roller 44 is rotatably connected to the support base 42 through its pivot 441. The end of the wheel body 442 of the roller 44 rolls against the drive rod 41. When the drive rod 41 slides relative to the support base 42, it drives the roller 44 to rotate around the pivot 441.

[0057] The support base 42 also has a notch 422 at its end. Three rollers 44 are provided on the support base 42 where the bottom of the drive rod 41 contacts, and two rollers 44 are provided on the other three surfaces of the support base 42. This structure provides greater support force and reduces sliding friction on the load-bearing surface of the support base 42, and provides more rollers 44 to improve the overall lifespan of the mechanism. The notch 422 also allows the drive rod 41 to avoid contact with the drive base 43 during sliding (see [reference]). Figure 2 This provides sliding guidance while increasing the sliding stroke.

[0058] Please see Figure 8 and Figure 9The roller 44 includes a rotating shaft 441 and a wheel body 442 pivotally connected to the rotating shaft 441. The rotating shaft 441 has two fixing holes 4412 for fixing to the support base 42. The roller 44 is fixedly connected to the support base 42 by bolts passing through the fixing holes 4412. The wheel body 442 of the roller 44 passes through a through hole 423 in the side wall of the support base 42, and the end of the roller 44 is located in the groove 421. In order to reduce noise, a noise reduction component 443 is fixedly provided on the outer periphery of the wheel body 442. In this embodiment, the noise reduction component 443 is silicone, but plastic or copper materials can also be used.

[0059] Working principle: When the drive seat 43 reciprocates, it drives the drive rod 41 to slide on the support seat 42 for guidance. The drive seat 43 pushes the rhythm rod 2 to move through the spring. Because the spring is pre-compressed, it can provide 40 kg of force, so the drive seat 43 can drive the rhythm rod 2 to move synchronously during the smooth driving process. When the drive seat 43 changes the direction of movement, the bidirectional inertia suppression mechanism 3 converts the kinetic energy of the drive seat 43 into elastic potential energy through the compression deformation of the first elastic body 31 and the equal elongation deformation of the second elastic body 32. This reduces the impact energy generated by the sudden change in direction, making the acceleration and deceleration process of the drive seat 43 smoother, reducing the instantaneous impact load on the drive mechanism 5, and making the change in the motion state of the drive seat 43 smoother, thus reducing the impact load on the drive end. After the drive seat 43 completes the change of motion direction, the bidirectional inertia suppression mechanism 3 releases elastic potential energy at the moment of the change of direction. This energy acts on the rhythm rod 2 in the form of force, and is superimposed and coupled with the driving force output by the drive mechanism 5 to form the resultant force that drives the rhythm rod 2 to move in the new direction. This not only effectively reduces the instantaneous load of the drive mechanism 5, but also ensures that the rhythm rod 2 can obtain continuous, stable and efficient driving power after the change of direction.

[0060] Example 2: Please see Figure 10 The difference between this embodiment and Embodiment 1 is that the drive seat 43 integrates the functions of a drive seat and a guide seat, enabling both the driving and guiding of the rhythmic rod 2. To improve stability, two guide seats 45 are also provided at both ends of the rhythmic rod 2. In this embodiment, the drive seat 43 is located between the two guide seats 45. Alternatively, one drive seat 43 and one guide seat 45 can be provided at both ends of the rhythmic rod 2. Both the drive seat 43 and the guide seats 45 are slidably connected to the rhythmic rod 2, and both the drive seat 43 and the two guide seats 45 are fixedly connected to the drive rod 41. The first elastic body 31 and the second elastic body 32 of the bidirectional inertia suppression mechanism 3 are respectively installed on both sides of the drive seat 43. One end of the first elastic body 31 is connected to the drive seat 43, and the other end is connected to the first rhythmic seat 21 of the rhythmic rod 2. One end of the second elastic body 32 is connected to the drive seat 43, and the other end is connected to the second rhythmic seat 22 of the rhythmic rod 2.

[0061] In this embodiment, two guide seats 45 are respectively disposed at both ends of the rhythmic rod 2, and the drive seat 43 is located between the two guide seats 45. Two springs are respectively disposed on both sides of the drive seat 43, one end of which is connected to the rhythmic rod 2, and the other end is connected to the opposite side of the drive seat 43. When the drive rod 41 slides back and forth under the drive of the drive assembly, the rhythmic rod 2 moves accordingly. When the direction of movement changes, the springs on both sides of the drive seat 43 will generate corresponding compression and elongation damping deformations, thereby effectively balancing the inertial force and reducing the impact of movement. The three-point sliding connection structure of the dual guide mechanism in this embodiment improves the sliding stability of the rhythmic rod 2, reduces the risk of bending deformation of the rhythmic rod 2 under force, and the drive seat 43 in the middle is more balanced in terms of force, which can be applied to horizontal rhythmic motion machines with higher requirements for movement stability and precision, such as in medical rehabilitation equipment, where patients lie on the rhythmic rod 2 for rehabilitation training. The optimized bidirectional inertial inhibition assembly can more precisely control the movement of the rhythmic rod 2, ensuring the safety and comfort of the patient during training and improving the rehabilitation effect.

[0062] The drive rod 41 adopts a rectangular structure with multiple rollers 44 evenly arranged around its circumference, forming an all-around rolling support, further reducing sliding resistance and improving the operating efficiency of the rhythm motor. The noise reduction component 443 is a copper sheet fixed to the drive rod 41 and connected to the drive rod 41 by screws. It covers the contact area of ​​the rollers 44 and utilizes the wear resistance and shock absorption properties of the copper sheet to absorb the vibration and noise generated by the contact between the rolling component and the drive rod 41, reducing the operating noise of the rhythm motor and meeting the noise control requirements under different working conditions.

[0063] Example 3: Combined with appendix Figure 1-10 And see Figure 11 and Figure 12 The difference between this embodiment and the above embodiment is that the elastic body is a rubber column 33. The rubber column 33 includes a rubber body and connectors 34 respectively embedded at both ends of the rubber body. The connectors 34 include a metal nut 341 and a metal baffle. The metal baffle is disposed on the outside of the metal nut 341 to be suitable for pressing against the rhythm seat or drive seat.

[0064] Specifically, when rubber column 33 is used, the rubber body serves as the main deformation element, effectively absorbing and releasing energy by utilizing its excellent elasticity and fatigue resistance.

[0065] Meanwhile, the metal nuts 341 and metal baffles at both ends of the rubber body not only facilitate a stable connection between the rubber column 33 and the rhythm seat and drive seat, but also ensure the stability and reliability of the connection through the effective pressure of the metal baffles, preventing the elastomer from shifting and loosening during the movement, thereby ensuring the damping effect of the bidirectional inertia suppression mechanism.

[0066] Furthermore, the portion of the rubber column positioned between the metal nuts at both ends is constructed as a deformation section. This deformation section has a Shore hardness of 50-90 HA, specifically 70 HA or 75 HA, and an aspect ratio of 1-4, specifically 2.8. For example, the deformation section of rubber column 33 has a length of 70 mm and a diameter of 25 mm. This design allows the deformation section to deform uniformly under axial compression or elongation, effectively absorbing and releasing energy, thus achieving a good damping effect. The selection range of Shore hardness ensures that the deformation section has sufficient elasticity to absorb impact energy while maintaining sufficient rigidity to avoid performance degradation due to excessive deformation. Simultaneously, the aspect ratio design further optimizes the mechanical properties of the deformation section, enabling it to deform more stably under external forces, improving the stability and reliability of the bidirectional inertia suppression mechanism.

[0067] Compared to cylindrical springs, rubber springs have a significant advantage in reducing noise: The viscoelastic properties of rubber can reduce noise. When subjected to impact and vibration, rubber can convert mechanical energy into heat energy through internal molecular friction, effectively absorbing high-frequency vibrations and noise. This viscoelastic property allows the rubber column to significantly reduce noise generated by metal-to-metal collisions and friction during the movement of the motor. Furthermore, the overall structural design of the rubber column ensures better stability during movement, reducing abnormal vibrations and noise caused by loosening or misalignment. In contrast, while cylindrical springs also have some shock absorption effect, their noise level is relatively high under high-frequency vibrations and complex operating conditions, especially after long-term use, producing a metallic rubbing sound.

[0068] A linear bearing is added between the support base 42 and the drive rod 41 to form a hybrid rolling structure with the roller 44, which reduces friction loss in high-frequency reciprocating motion and improves the reliability and service life of the motor.

[0069] A displacement sensor is added to the drive unit 43 to monitor spring deformation in real time. This sensor works in conjunction with the control system to dynamically adjust the damping force, enabling the suspension system to adaptively adjust according to the actual motion state, further improving the stability and comfort of the actuator under high-frequency vibration conditions. A honeycomb-shaped damping coating is applied to the surface of the drive rod 41 to absorb high-frequency vibration energy and reduce the impact of vibration on the overall structure of the actuator.

[0070] Example 4: Please see Figure 13The present invention also provides a horizontal rhythmic motion device, which includes a drive mechanism 5 and two sets of suspension systems 100 as described in any of the above embodiments, with the two sets of suspension systems 100 spaced apart. In the implementation of the rhythmic motion device, the various technical solutions of the suspension system 100 are combined with the overall structure of the rhythmic motion device, so that the rhythmic motion device can maintain smooth movement and low noise operation during starting, speed change, and reversing.

[0071] The drive mechanism 5 employs a servo motor, with its fixed end either fixedly or rotatably connected to the fixed frame 1. The drive end is connected to the drive rod 41 via a crank-connecting rod mechanism, converting rotary motion into linear reciprocating motion. The drive mechanism 5 drives the drive rod 41 in reciprocating motion, and the drive rod 41, through the drive seat 43, drives the rhythmic rod 2 in reciprocating sliding motion. When the drive mechanism 5 drives the drive seat 43 to change the direction of motion, the damping effect of the suspension system 100 maintains the smoothness of the rhythmic rod 2's movement, preventing impacts from sudden stops and turns, and optimizing the motion control performance of the rhythmic motor.

[0072] The bidirectional inertia suppression mechanism, horizontal rhythm mechanism, rolling elements, and noise reduction components in the suspension system 100 work together to significantly improve the reliability and service life of the rhythm motor, expanding its application range in complex working conditions. For example, in gyms, homes, and other settings, the rhythm motor can provide users with a smooth and comfortable rhythmic experience, reducing discomfort caused by equipment vibration, while also reducing equipment operating noise and creating a better exercise environment.

[0073] In the field of rehabilitation training, the stability and smoothness of rhythmic motion machines help patients perform precise rehabilitation exercises, avoiding secondary injuries caused by the impact and vibration of the equipment. In industrial applications, the high strength and stability of rhythmic motion machines enable them to adapt to complex production environments, providing reliable auxiliary support for workers' operations.

[0074] The suspension system for a horizontal rhythmic motor provided by this invention has been described in detail above. Specific examples have been used to illustrate the principles and implementation methods of this invention. The descriptions of the embodiments above are merely for the purpose of helping to understand the method and core ideas of this invention. It should be noted that those skilled in the art can make various improvements and modifications to this invention without departing from its principles, and these improvements and modifications also fall within the protection scope of the claims of this invention.

Claims

1. A suspension system for a horizontal rhythmic motor, comprising a fixed frame and a rhythmic frame adapted to support a user, the rhythmic frame being coupled to the fixed frame via a linear sliding device; characterized in that, The linear sliding device includes: A horizontal rhythmic mechanism includes a rhythmic rod fixed to the rhythmic frame, a drive rod that reciprocates along a horizontal axis, a support device for rolling support of the drive rod, and a drive seat fixed to the drive rod. The rhythmic rod is spaced apart from the drive rod and slidably connected to the drive seat. A bidirectional inertia suppression mechanism is configured to apply a damping force opposite to the inertial force to the rhythm frame when the direction of movement of the rhythm frame changes, so as to suppress the sudden acceleration of the rhythm frame from causing the user to slip relative to the rhythm frame. The bidirectional inertia suppression mechanism includes at least one pair of elastic bodies spaced apart along the horizontal axis. Each pair of elastic bodies is configured to be pre-compressed and mounted between the rhythm frame and the drive seat to eliminate the idle travel of the drive seat. In the direction of motion of the rhythm frame, when the first elastic body on the front side of the pair of elastic bodies undergoes axial compression deformation, the second elastic body on the rear side simultaneously undergoes an equal amount of elongation deformation, so that the rhythm frame reciprocates stably.

2. The suspension system of the horizontal pulsator according to claim 1, characterized in that, The rhythm frame includes a first rhythm seat and a second rhythm seat arranged in pairs, and the horizontal rhythm mechanism includes a first drive seat and a second drive seat arranged in pairs; the first elastic body is clamped and fixed between the first drive seat and the first rhythm seat, and the second elastic body is clamped and fixed between the second drive seat and the second rhythm seat.

3. The suspension system of the horizontal pulsator according to claim 1, characterized in that, The rhythm frame includes a first rhythm seat and a second rhythm seat arranged in pairs. The drive seat is disposed between the first rhythm seat and the second rhythm seat. The first elastic body is clamped and fixed between the drive seat and the first rhythm seat, and the second elastic body is clamped and fixed between the drive seat and the second rhythm seat.

4. The suspension system of the horizontal pulsator according to claim 2 or 3, characterized in that, The first and second rhythm seats are fixedly connected to the rhythm rod.

5. The suspension system of the horizontal pulsator according to claim 4, characterized in that, The drive rod is fixedly connected to a guide seat that is adapted to the rhythm rod and can guide the rhythm rod to move rhythmically. The guide seat is integrated with or separate from the drive seat.

6. The suspension system of the horizontal pulsator according to claim 2 or 3, characterized in that, The elastic body is a cylindrical spring or a rubber column. The rubber column includes a rubber body and connectors respectively embedded at both ends of the rubber body. The connectors include a metal nut and a metal baffle. The metal baffle is disposed on the outside of the metal nut to be suitable for pressing against the rhythm seat or drive seat.

7. The suspension system of the horizontal pulsator according to claim 6, characterized in that, The portion of the elastomer disposed between the two metal nuts is configured as a deformable segment, the deformable segment having a Shore hardness of 50~90HA and an aspect ratio of 1~4.

8. The suspension system of the horizontal pulsator according to claim 1, characterized in that, The support device includes: Support base fixed to the fixed frame; and Multiple rolling elements are rotatably mounted on the support base; A linear sliding space is constructed between the plurality of rolling elements to define the reciprocating motion of the drive rod, the drive rod passing through the linear sliding space and maintaining a certain gap with the support base.

9. A horizontal rhythmic motion, characterized in that, The suspension system includes the horizontal pulsator as described in any one of claims 1 to 8.

10. The horizontal rhythmic motion device according to claim 9, characterized in that, It includes a drive mechanism, the fixed end of which is connected to the fixed frame, and the drive end of which is connected to the drive rod. When the drive mechanism drives the drive rod to change the direction of motion, the rhythm frame maintains its direction of motion unchanged based on the damping effect of the bidirectional inertia suppression mechanism.

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