Shaking mechanism applied to lower limb vibration device and foot shaking machine applying shaking mechanism

Abstract

The utility model discloses a shaking mechanism applied to a lower limb vibration device and a foot shaking machine applying the shaking mechanism. The shaking mechanism comprises a base. The driving device is arranged on the base and comprises a rotating shaft and an eccentric sleeve suitable for outputting rotating power; the swinging component is pivoted to the eccentric sleeve through a transmission support plate; and the deflection limiting shaft is pivoted to the base through the deflection limiting shaft, obtains the rotating power through the transmission support plate, and is driven to swing around the deflection limiting shaft within a specified angle so as to output a swing rhythm action. The swing component is in indirect driving connection with the eccentric sleeve through the transmission supporting plate, and a unique power transmission path is formed. According to the design, the lever effect of the transmission supporting plate is utilized, the advantage of direct driving of the eccentric sleeve is kept, meanwhile, dynamic optimization of the vibration amplitude is achieved through geometric regulation and control over the length and the angle of the supporting plate, and compared with a traditional direct connection structure, the power transmission efficiency is obviously improved.

Description

Technical Field

[0001] This utility model relates to the field of foot rhythm device technology, and in particular to a shaking mechanism for use in lower limb vibration devices and a foot shaking machine for its application. Background Technology

[0002] With increasing health awareness, vibration devices that improve lower limb circulation and muscle vitality by simulating natural human movement have gradually become a research hotspot. Foot-shaking machines, as health devices that improve health through automatic, supposedly "poor man's" foot-shaking, have been widely used in recent years to improve blood circulation, relieve muscle fatigue, and promote overall health. Their core function is to simulate the natural foot-shaking motion of the human body, generating regular vibrations or swings to stimulate lower limb muscles and nerves, thereby achieving health improvements. However, existing lower limb vibration devices have some design limitations, especially in the precision of power transmission and swing control, which urgently need improvement.

[0003] Existing devices, such as the lower limb vibration device disclosed in patent CN103417354B, include an action plate that can support the sole and heel of the foot. This action plate is linked to a motor, which has an eccentric cam at its output shaft. This eccentric cam is connected to a rotating plate rotatably mounted on one end. The rotating plate rotates up and down around the rotatably mounted end due to the rotation of the eccentric cam. The action plate is connected to the other end of the rotating plate and moves up and down due to the rotation of the rotating plate. However, this patent uses a rigid direct connection between the eccentric sleeve and the swinging component. While this improves power transmission efficiency, it results in a fixed vibration trajectory, making it difficult to adapt to the personalized needs of different users. Furthermore, the direct drive structure lacks motion constraint components, making it prone to excessive swaying during high-frequency vibration, which not only reduces the user experience but also poses safety hazards. Utility Model Content

[0004] The technical problem to be solved by this utility model is to overcome the shortcomings of the prior art and provide a shaking mechanism for lower limb vibration devices and a foot shaking machine for the application therein. The pivot point of the transmission support plate and the eccentric sleeve can optimize the length of the power arm, so that the swinging component can obtain sufficient driving torque and achieve controllable swinging within a specified angle by means of the constraint of the swing limit shaft.

[0005] To achieve the above objectives, the technical solution adopted by this utility model is as follows:

[0006] A shaking mechanism for use in a lower limb vibration device, comprising:

[0007] Base;

[0008] A drive unit, which is disposed on the base, includes a rotating shaft and an eccentric sleeve adapted to output rotational power.

[0009] A swinging member, the swinging member being pivotally connected to the eccentric sleeve via a transmission support plate; and

[0010] A yaw limiting shaft is provided, through which the yaw member is pivotally connected to the base;

[0011] The swinging member is configured to obtain the rotational power through the transmission support plate and swing around the yaw limiting axis within a specified angle to output a swinging rhythmic motion.

[0012] Furthermore, the first end of the transmission support plate is pivotally connected to the eccentric sleeve, and the second end of the transmission support plate is pivotally connected to the swing member via a swing shaft.

[0013] Furthermore, the swing shaft is disposed in the middle of the swing member, and the yaw limiting shaft is disposed at the end of the swing member.

[0014] Furthermore, the swing shaft is disposed at the end of the swing member, and the yaw limiting shaft is disposed at the middle of the swing member.

[0015] Furthermore, the eccentricity of the eccentric sleeve relative to the rotating shaft is 2.0mm-3.0mm.

[0016] Furthermore, the eccentric sleeve, the yaw limiting shaft, the swing shaft, and the swing component form a crank-rocker mechanism.

[0017] Furthermore, the base includes a support, and the swing member is pivotally connected to the support via the yaw limiting shaft.

[0018] Furthermore, the rhythm output mechanism also includes a power unit, and the rotating shaft is configured as the output shaft of the power unit.

[0019] A foot-shaking machine includes the aforementioned shaking mechanism, and further includes a pedal disposed on the other end of the swinging member for supporting the sole and heel of the foot.

[0020] Furthermore, the height difference between the lower and upper limits of the pedal when it moves up and down is 3cm ± 1.5cm.

[0021] Due to the adoption of the above technical solutions, this utility model has the following beneficial effects:

[0022] 1. The swing component of this utility model forms an indirect drive connection between a transmission support plate and an eccentric sleeve, creating a unique power transmission path. This design utilizes the lever effect of the transmission support plate, maintaining the advantages of direct drive by the eccentric sleeve while achieving dynamic optimization of vibration amplitude through geometric control of the support plate's length and angle. Compared to traditional direct-drive structures, power transmission efficiency is significantly improved, and the vibration trajectory is more ergonomic, effectively avoiding rigid impacts. Furthermore, the crank-rocker mechanism formed by the eccentric sleeve, swing limiting shaft, swing shaft, and swing component efficiently converts rotational power into swinging rhythmic motion. This mechanism design ensures high efficiency and stability in power transmission while reducing energy loss.

[0023] 2. The synergistic effect of the yaw limiting axis and the swing axis in this invention, combined with an optimized spacing of 8cm-15cm, forms a dual motion constraint. By rationally configuring the positions of the yaw limiting axis and the swing axis, the swing component can swing within a specified angle, providing flexible swing angle adjustment capability. Attached Figure Description

[0024] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings of the embodiments will be briefly introduced below. Obviously, the drawings described below only involve some embodiments of this utility model, and are not intended to limit this utility model.

[0025] Figure 1 This is a three-dimensional structural diagram of the present invention.

[0026] Figure 2 This is a diagram of the internal structure of this utility model.

[0027] Figure 3 This is an exploded view of the structure of this utility model.

[0028] Figure 4 This is a three-dimensional structural diagram of the internal structure of this utility model.

[0029] Figure 5 This is an internal cross-sectional structural diagram of this utility model.

[0030] Figure label:

[0031] In the diagram, 100. Base; 110. Support; 200. Drive unit; 210. Power source; 220. Rotating shaft; 230. Eccentric sleeve; 300. Swinging component; 400. Swing limiting shaft; 500. Transmission support plate; 600. Frame; 700. Pedal; 710. Heel bearing surface; 720. Erecting part; 800. Swinging shaft; 900. Gear transmission assembly. Detailed Implementation

[0032] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the utility model will be further described in detail below with reference to the accompanying drawings. The components of the embodiments of this utility model described and shown in the accompanying drawings can be arranged and designed in various different configurations. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without inventive effort are within the scope of protection of this utility model.

[0033] 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.

[0034] 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 utility model pertains. The terms "first," "second," and similar terms used in this utility model 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. They are only for the convenience of describing this utility model 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, and therefore should not be construed as a limitation of this utility model.

[0035] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" 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 utility model based on the specific circumstances.

[0036] The following detailed description of some embodiments of the present invention is provided in conjunction with the accompanying drawings. Unless otherwise specified, the features in the following embodiments can be combined with each other.

[0037] Example 1:

[0038] Please see Figures 1-5This utility model discloses a shaking mechanism for a lower limb vibration device. It is suitable for use on a foot-shaking machine. The shaking mechanism includes: a base 100, a drive device 200, a swing component 300, and a sway limiting shaft 400. The base 100 is welded from structural steel and its surface is treated with electrophoretic rust prevention. Anchor bolt holes are provided at the bottom of the base 100 for fixing the base 100 in place. A support 110 is provided on the upper surface of the base 100. The support 110 is made of cast aluminum and is precision-machined and welded to the base 100. The drive device 200 consists of a power source 210, a rotating shaft 220, and an eccentric sleeve 230. The power source 210 is a motor, which transmits rotational power to the rotating shaft 220 via a gear transmission assembly 900. The front end of the rotating shaft 220 is supported by a bearing 240, and an eccentric sleeve 230 is provided on the output shaft portion between the bearing 240 and the gear transmission assembly 900. In this embodiment, the eccentricity of the eccentric sleeve 230 relative to the rotating shaft 220 is designed to be 2.5 mm. A transmission support plate 500, which is a thin elliptical plate, is sleeved around the eccentric sleeve 230 and is connected to it for transmission. One end of the transmission support plate 500 is connected to the eccentric sleeve 230, and the other end is connected to a swing member 300 via a swing shaft 800. The end of the swing member 300 on the side of the eccentric sleeve 230 connection portion has a swing limiting shaft 400. The swing member 300 is pivotally connected to the base 100 via the swing limiting shaft 400, and the swing limiting shaft 400 is configured as the pivot portion for the rotation of the swing member 300. Furthermore, the swing member 300 is transmissionally connected to the transmission support plate 500. In this fixed state, a certain distance is formed between the step portion of the swing member 300 and its pivot portion. Specifically, the distance between the yaw limiting shaft 400 and the swing shaft 800 is 8cm-15cm. The side furthest from the pivot portion at this distance is exposed externally, housing all drive devices 200, including the motor, inside a frame 600. In this embodiment, the swing member 300 is configured to receive rotational power from the drive device 200 via the transmission support plate 500 and swing around the yaw limiting shaft 400 within a predetermined angle to output a swing rhythmic motion. In this embodiment, the eccentric sleeve 230, the yaw limiting shaft 400, the swing shaft 800, and the swing member 300 form a crank-rocker mechanism. The swing member 300 rotates around the yaw limiting shaft 400 as a fulcrum, driven by the rotation of the eccentric sleeve 230 transmitted from the motor. The end of the swing member 300 furthest from the yaw limiting shaft 400 moves up and down during the swing motion. At this time, the amplitude of the up-and-down movement can be set by adjusting the eccentricity of the eccentric sleeve 230, the length of the swing member 300, and the connection position of the eccentric sleeve 230 with the swing member 300 via the transmission support plate 500. These will not be elaborated on here.

[0039] In this embodiment, the foot-shaking machine using the shaking mechanism of this application further includes a pedal 700 disposed on the other end of the swing member 300 for supporting the sole and heel of the foot. The pedal 700 is positioned at its lowest limit position PL when the swing member 300 is in contact with the transmission support plate 500, and its end is positioned at the difference between its highest limit position PH and PL (PH-PL) when the swing member 300 is in contact with the transmission support plate 500. That is, the amplitude is set to less than 5cm, preferably less than 3cm. If this amplitude exceeds 5cm, the burden on the sole of the foot will increase during a single flexion, and elderly people will be unable to place their toes on the ground beforehand, resulting in the entire sole of the foot bearing on the heel bearing surface 710 of the pedal 700. While this usage is possible, since there is no movement near the sole of the foot, it is impossible to fully perform the so-called "poor foot-shaking" exercise, and it increases the burden on the pedal 700 on the heel bearing surface 710, leading to a greater burden on the motor. In this application, the pedal 700 extends to the outer end of the swing member 300 for stability at the heel of the foot. Specifically, the swing member 300 is configured such that the pedal 700 at its end does not tilt and contacts the ground. In this embodiment, the connection position between the swing member 300 and the transmission support plate 500 can be one-third of the distance from the heel bearing surface 710 to the opposite end, preferably more than half.

[0040] It should be noted that the dimensions of the pedal 700 in this application refer to the dimensions of the heel bearing surface 710, which supports the heel portion of the foot. An upward-facing raised portion 720 is provided from one end of this heel bearing surface 710. This raised portion 720 acts as a stop for the heel when the heel bearing surface 710 supports the heel. In this embodiment, the heel bearing surface 710 is treated with an anti-slip process to prevent slippage when supporting the heel. This anti-slip process can be a grooved or textured process, equivalent to creating uneven surfaces to achieve the anti-slip purpose, or it can be achieved by applying an anti-slip material made of rubber, resin, or cloth. According to this utility model, the action plate supporting the heel is positioned at a height of less than 4 cm relative to the toe-bearing surface supporting the toe, and is configured to move the heel-bearing surface 710 up and down by means of the driving force of the motor. Therefore, the sole of the foot will not become excessively bent, and the so-called poor foot shaking exercise can be performed, which can effectively stimulate the hip joint at the base of the lower limb.

[0041] The leg-shaking machine of this application, because it performs a so-called "poor man's leg-shaking exercise," can be installed on the leg of the chair the user is sitting on. At this time, the chair can be any type of chair used in general, without special restrictions, such as chairs used in homes, workplaces, seats in long-distance buses, cars, airplanes, trams, etc., seats in various facilities such as cinemas or concert halls, seats in restaurants, etc. It can be installed on the leg of chairs in all places.

[0042] The method of using this application is as follows:

[0043] First, the foot-shaking machine is installed in the support leg of the chair the user is sitting on. Then, the heel of the foot is placed on the heel bearing surface 710 of the moving pedal 700 to activate the motor. The motor can operate at a constant speed or at variable speeds. Through the motor's operation, the heel bearing surface 710 moves up and down relative to the ground where the toes are placed, thus the heel performs the same swinging rhythm as the so-called "poor man's foot-shaking exercise." This stimulation effectively targets the soles of the feet at the lower extremities and vibrates the hip joint at the base of the lower limbs. Therefore, even elderly individuals who are unable to actively exercise can effectively relax their hip joints, thereby improving the range of motion in the lower limbs, making walking easier, or improving blood circulation. Furthermore, even non-elderly individuals can use this foot-shaking machine by placing it in the leg of a seat on a long-distance bus, airplane, or tram to prevent the occurrence of so-called economy class syndrome.

[0044] Example 2:

[0045] The difference between this embodiment and Embodiment 1 is that, in this embodiment, the eccentric sleeve 230 connecting part of the swing member 300 is the end of the swing member 300. Specifically, the swing shaft 800 is disposed at the end of the swing member 300, and the swing limiting shaft 400 is disposed in the middle of the swing member 300. Furthermore, a swing limiting shaft 400 is provided between the side of the swing member 300 connected to the transmission support plate 500 and the pedal 700. The swing member 300 is pivotally connected to the support 110 via the swing limiting shaft 400, and the swing limiting shaft 400 is configured as the pivot point for the rotation of the swing member 300. Also, the swing member 300 is drive-connected to the transmission support plate 500. In this fixed state, a certain distance is formed between the step portion of the swing member 300 and its pivot point, and the side of this gap away from the pivot point is exposed to the outside, housing all the drive devices 200, including the motor, inside a frame 600. In this embodiment, the swing member 300 is also configured to obtain the rotational power of the drive device 200 through the transmission support plate 500, and swing around the swing limiting axis 400 within a specified angle to output a swing rhythmic motion. The connection position of the swing limiting axis 400 can be 1 / 3 of the distance from the heel bearing surface 710 to the opposite end, preferably more than half of the distance.

[0046] The above description is merely a specific embodiment of this utility model, but the protection scope of this utility model 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 this utility model should be included within the protection scope of this utility model. Therefore, the protection scope of this utility model should be determined by the scope of the claims.

Claims

1. A shaking mechanism applied to a lower limb vibration device, characterized in that, include: Base; A drive unit, which is disposed on the base, includes a rotating shaft and an eccentric sleeve adapted to output rotational power. A swinging member, the swinging member being pivotally connected to the eccentric sleeve via a transmission support plate; and A yaw limiting shaft is provided, through which the yaw member is pivotally connected to the base; The swinging member is configured to obtain the rotational power through the transmission support plate and swing around the yaw limiting axis within a specified angle to output a swinging rhythmic motion.

2. The vibration mechanism according to claim 1, characterized in that, The first end of the transmission support plate is pivotally connected to the eccentric sleeve, and the second end of the transmission support plate is pivotally connected to the swing member via a swing shaft.

3. The shaking mechanism according to claim 2, characterized in that, The swing axis is disposed in the middle of the swing member, and the yaw limiting axis is disposed at the end of the swing member.

4. The shaking mechanism according to claim 2, characterized in that, The swing axis is disposed at the end of the swing member, and the yaw limiting axis is disposed in the middle of the swing member.

5. The vibration mechanism according to claim 1, characterized in that, The eccentricity of the eccentric sleeve relative to the rotating shaft is 2.0mm-3.0mm.

6. The shaking mechanism according to claim 5, characterized in that, The eccentric sleeve, the yaw limiting shaft, the swing shaft, and the swing component form a crank-rocker mechanism.

7. The vibration mechanism according to claim 1, characterized in that, The base includes a support, and the swing member is pivotally connected to the support via the yaw limiting shaft.

8. The vibration mechanism according to claim 1, characterized in that, The vibration mechanism also includes a power unit, and the rotating shaft is configured as the output shaft of the power unit.

9. A foot-shaking machine, characterized in that, The device includes the shaking mechanism as described in any one of claims 1-8, and further includes a pedal disposed on the other end of the swing member for supporting the sole and heel of the foot.

10. The foot-shaking machine according to claim 9, characterized in that, The height difference between the lower and upper limits of the pedal when it moves up and down is 3cm ± 1.5cm.

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