A machine core for calf shaking and knocking and a massage chair
The mechanism used for calf muscle vibration and tapping utilizes an eccentric wheel to drive the tapping components, achieving high-frequency reciprocating tapping. This solves the problem that existing massage devices cannot relieve calf muscle hypoxia and soreness, and achieves effective muscle relaxation and blood circulation.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- FUJIAN ROVOS FITNESS CO LTD
- Filing Date
- 2025-05-09
- Publication Date
- 2026-06-05
AI Technical Summary
Existing massage devices are ineffective in relieving calf muscle hypoxia and soreness, especially when using airbag compression or roller massage, the effect is not good.
The device employs a mechanism for calf-shaking and tapping, comprising a base plate, a drive, a tapping shaft, an eccentric wheel, a tapping component, and a striking component. The eccentric wheel is driven to rotate, causing the tapping component to reciprocate. The striking component performs high-frequency reciprocating tapping at both ends, simulating human body tapping massage.
It achieves high-frequency vibration stimulation, promotes blood circulation in the calves, relieves muscle stiffness, breaks down lactic acid buildup, and enhances muscle relaxation. It also features a compact structure, low energy consumption, and stable operation.
Smart Images

Figure CN224320868U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of massage device technology, and more specifically, to a mechanism for shaking and tapping the calves and a massage chair. Background Technology
[0002] When exercising the calves, or walking or running for a long time, the calf muscles often become hypoxic and sore, which can make it impossible to walk in severe cases. Massaging and patting the calves can effectively solve the problems of hypoxia and soreness in the calf muscles.
[0003] However, most leg massages on the market currently use airbag compression or roller compression to compress the calf muscles, which has a certain effect, but it cannot effectively solve the problems of calf hypoxia and soreness, and its effect on relieving muscle stiffness is unclear. Utility Model Content
[0004] In view of this, the purpose of this utility model is to provide a mechanism for calf shaking and tapping and a massage chair to solve the above problems.
[0005] The present invention adopts the following solution:
[0006] This application provides a mechanism for calf shaking and tapping, including a base plate and a drive mounted on the base plate; it also includes a tapping shaft rotatably mounted on the base plate, an eccentric wheel fixed on the tapping shaft, a tapping component rotatably connected to the eccentric wheel, and a tapping component with massage heads at both ends.
[0007] The striking component is hinged to the base plate at the middle, and one end is hinged to the slapping component; the drive is used to drive the slapping shaft to rotate, thereby causing the eccentric wheel to rotate synchronously, thereby driving the slapping component to reciprocate, and thus driving the two ends of the striking component to perform reciprocating striking actions.
[0008] Furthermore, the other end of the striking component is also provided with an elastic element that connects to the base plate.
[0009] Furthermore, a large pulley is provided on the striking shaft; a small pulley is provided on the drive output shaft; the large pulley and the small pulley are connected by a belt for transmission.
[0010] Furthermore, two bearing seats are provided on the base plate; the two ends of the striking shaft are rotatably mounted on the bearing seats through a first bearing and a rubber bearing sleeve, respectively.
[0011] Furthermore, the striking component is sleeved on the eccentric wheel via a second bearing.
[0012] Furthermore, one side of the striking member is provided with a mounting groove with a through hole, and a first pressure cap is connected to this side; the bottom of the mounting groove is provided with a first stepped surface; the side of the eccentric wheel away from the first stepped surface is provided with a second stepped surface, and the other side is connected to a second pressure cap; the second bearing is mounted on the mounting groove through the first stepped surface and the first pressure cap; the eccentric wheel is mounted on the inner ring of the second bearing through the second stepped surface and the second pressure cap.
[0013] Furthermore, a protrusion is provided on the outer periphery of the striking member; one end of the striking member is hinged to the protrusion.
[0014] This utility model also provides a massage chair, including a leg support body and the aforementioned mechanism for shaking and tapping the calves. The base plate is connected to the leg support body so that the massage heads at both ends of the tapping mechanism can correspond to the left and right placement slots of the leg support body, respectively.
[0015] By adopting the above technical solution, the present invention can achieve the following technical effects:
[0016] This utility model provides a mechanism for calf shaking and tapping. By driving the tapping shaft and eccentric wheel to rotate, the tapping component drives the two ends of the striking component to achieve high-frequency reciprocating tapping action. It can accurately simulate the mechanical characteristics of human body tapping massage, effectively relieve muscle stiffness and promote blood circulation. It has the advantages of stable operation and deep effect. Attached Figure Description
[0017] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this utility model and should not be regarded as a limitation of the scope. For those skilled in the art, other related drawings can be obtained from these drawings without creative effort.
[0018] Figure 1 This is a schematic diagram of the structure of a mechanism for shaking and tapping the calves, according to an embodiment of this utility model. Figure 1 ;
[0019] Figure 2 This is a schematic diagram of the structure of a mechanism for shaking and tapping the calves, according to an embodiment of this utility model. Figure 2 ;
[0020] Figure 3 This is a partially disassembled structural diagram of a mechanism for calf-shaking and tapping according to an embodiment of the present invention. Figure 1 ;
[0021] Figure 4This is a partially disassembled structural diagram of a mechanism for calf-shaking and tapping according to an embodiment of the present invention. Figure 2 ;
[0022] Figure 5 This is a schematic diagram of the structure of a striking component of a mechanism for shaking and tapping the calves, according to an embodiment of this utility model.
[0023] Figure 6 This is a partial structural schematic diagram of a massage chair according to an embodiment of the present invention;
[0024] Icons: Base plate 1, Drive 2, Tapping shaft 3, Eccentric wheel 4, Tapping component 5, Striking component 6, Massage head 7, Bearing seat lower cover 8, Bearing seat upper cover 9, First bearing 10, Rubber bearing sleeve 11, Elastic component 12, Large pulley 13, Small pulley 14, Belt 15, Second bearing 16, Mounting groove 17, First pressure cover 18, First step surface 19, Second step surface 20, Second pressure cover 21, Protrusion 22, Leg support body 23, Striking component fixing seat 24. Detailed Implementation
[0025] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this utility model, not all of them. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model. Therefore, the following detailed description of the embodiments of this utility model provided in the accompanying drawings is not intended to limit the scope of the claimed utility model, but merely represents selected embodiments of this utility model. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.
[0026] Example
[0027] Combination Figures 1 to 6 As shown, this embodiment provides a mechanism for calf-shaking and tapping, including a base plate 1, a drive 2, a tapping shaft 3, an eccentric wheel 4, a tapping component 5, and a striking component 6. The drive 2 is mounted on the base plate 1 to drive the tapping shaft 3 to rotate. The eccentric wheel 4 is fixed to the tapping shaft 3 and rotatably connected to the tapping component 5. The striking component 6 is hinged to the base plate 1 in the middle and has massage heads 7 at both ends, one end of which is hinged to the tapping component 5. The drive 2 drives the tapping shaft 3 to rotate, causing the eccentric wheel 4 to drive the tapping component 5 to reciprocate, thereby causing the two ends of the striking component 6 to tap alternately.
[0028] The base plate 1 refers to the foundation structure that supports the various mechanical components. It can be made of stamped metal sheet with positioning holes on its surface for fixing the drive 2 and bearing housing, ensuring the overall structural rigidity. In this embodiment, the drive 2 is a motor, which is fixed to the base plate 1 via a motor mount.
[0029] The tapping shaft 3 is a rotating shaft, and its two ends can achieve low-friction rotation through bearing assemblies. The eccentric wheel 4 refers to a disc structure with a non-central shaft hole, whose center of rotation is off-center from the geometric center. The tapping component 5 refers to the transmission component connecting the eccentric wheel 4 and the tapping component 6. The tapping component 6 refers to a lever structure with double-ended massage heads 7, and its central fulcrum is hinged to the tapping component 6 fixing seat on the base plate 1 to form a lever effect.
[0030] Specifically, in this embodiment, such as Figures 1 to 3 As shown, two bearing seats are provided on the base plate 1, including a lower bearing seat cover 8 and an upper bearing seat cover 9. The two ends of the striking shaft 3 are rotatably mounted on the bearing seats via a first bearing 10 and a rubber bearing sleeve 11, respectively. The first bearing 10 ensures the stability and low friction characteristics of the striking shaft 3 during rotation, while the rubber bearing sleeve 11 absorbs the vibration generated during rotation through elastic deformation, reducing the vibration energy transmitted to the base plate 1. Therefore, when the striking shaft 3 drives the eccentric wheel 4 and the striking component 5, the support structure at both ends ensures smooth rotation and reduces overall operating noise.
[0031] Compared with existing technologies, this solution uses a composite support structure of rigid bearings and elastic bearings at both ends of the striking shaft 3, which maintains rotational accuracy and absorbs high-frequency vibrations through rubber material, thus solving the problem of excessive noise caused by mechanical vibration in existing technologies.
[0032] Specifically, the drive unit 2 outputs power to rotate the tapping shaft 3 at a constant speed, causing the eccentric wheel 4, fixed to the shaft, to perform circular motion. The tapping component 5 is connected to the outer edge of the eccentric wheel 4 via bearings, converting the circular motion into reciprocating motion. The tapping component 6, pulled by the tapping component 5, swings around the central hinge point, and the massage heads 7 at both ends alternately rise and fall under the action of levers. When the eccentric wheel 4 rotates to the high position, one end of the tapping component 6 is raised while the other end descends; when it rotates to the low position, the direction of motion is reversed, forming a continuous alternating tapping pattern. This motion pattern can produce a rhythmic impact similar to manual massage, effectively stimulating deep muscle tissue.
[0033] The automatic alternating striking mode of this solution allows for precise control of the striking frequency and force. Compared to other transmission systems, the eccentric wheel 4-speed transmission structure has the advantages of compact structure, low energy consumption, and simple maintenance, making it more suitable for integration into leg support devices.
[0034] Through the above technical solution, this application can generate alternating high-frequency vibration stimulation, effectively promoting blood circulation in the calf area and relieving muscle tissue hypoxia. The alternating movements of the dual-end massage heads 7 create continuous shock waves, which help break down lactic acid buildup in muscles and improve muscle stiffness after exercise. The mechanical transmission structure can precisely control the tapping frequency, adapting to the force requirements of different users and enhancing muscle relaxation effects.
[0035] This application further proposes that the other end of the striking member 6 is provided with an elastic member 12 connected to the base plate 1.
[0036] The elastic element 12 is a component capable of storing and releasing energy through elastic deformation. It can be implemented using a spring, rubber block, or elastic metal sheet, and provides cushioning and resetting during the reciprocating motion of the striking element 6. The other end refers to the end of the striking element 6 furthest from the hinged joint with the striking element 5. Specifically, it can be located at the end of the striking element 6 along its length, and is used to form a flexible connection with the base plate 1 through the elastic element 12 to balance the impact force during the striking process. This further stabilizes the force, maintains force balance, and reduces noise.
[0037] This application further proposes that a large pulley 13 is also provided on the striking shaft 3, and a small pulley 14 is provided on the output shaft of the drive 2. The large pulley 13 and the small pulley 14 are connected by a belt 15. Due to the difference in diameter between the large pulley 13 and the small pulley 14, a reduction ratio is formed, and the striking shaft 3 rotates at a lower speed, driving the eccentric wheel 4 to produce periodic displacement. During this process, the belt 15 effectively absorbs the vibration generated by the drive 2, making the reciprocating motion of the striking element 5 smoother, while reducing the mechanical losses that may be generated by gear transmission.
[0038] This application further proposes that the striking element 5 is sleeved on the eccentric wheel 4 via the second bearing 16. The striking element 5 has a mounting groove 17 with a through hole on one side, and a first pressure cap 18 is connected to this side; the bottom of the mounting groove 17 has a first stepped surface 19; the eccentric wheel 4 has a second stepped surface 20 on the side away from the first stepped surface 19, and a second pressure cap 21 is connected to the other side; the second bearing 16 is mounted on the mounting groove 17 via the first stepped surface 19 and the first pressure cap 18; the eccentric wheel 4 is mounted on the inner ring of the second bearing 16 via the second stepped surface 20 and the second pressure cap 21.
[0039] The mounting groove 17 refers to a hollow structure located on and extending through the side of the striking member 5, which can be formed by milling. It is used to accommodate and position the second bearing 16. The first stepped surface 19 refers to the annular boss structure formed at the bottom of the mounting groove 17, which is used to axially limit the outer ring of the second bearing 16. The first pressure cap 18 refers to a plate-like component covering the opening end of the mounting groove 17, which can be fixed to the side of the striking member 5 by screws, and is used to press the outer ring of the second bearing 16. The second stepped surface 20 refers to the annular boss structure formed on the end face of the eccentric wheel 4, which can be formed by turning, and is used to axially limit the inner ring of the second bearing 16. The second pressure cap 21 refers to an annular component covering the end face of the eccentric wheel 4, which can be fixed to the eccentric wheel 4 by screws, and is used to press the inner ring of the second bearing 16.
[0040] Specifically, the through structure of the mounting groove 17 allows the second bearing 16 to be inserted from the outside of the striking member 5. The first stepped surface 19 and the first pressure cap 18 work together to clamp and fix the outer ring of the second bearing 16 in the mounting groove 17. The second stepped surface 20 of the eccentric wheel 4 cooperates with the second pressure cap 21 to clamp the inner ring of the second bearing 16 at the end of the eccentric wheel 4, so that the eccentric wheel 4 and the second bearing 16 form a stable connection. This structure, through the double limiting of the stepped surface and the pressure cap, prevents the bearing from axially moving during high-speed rotation, while ensuring the rotational freedom between the eccentric wheel 4 and the striking member 5.
[0041] This solution utilizes a two-way clamping structure formed by the stepped surface and the pressure cap to provide reliable axial constraint for both the inner and outer rings of the bearing, effectively reducing the risk of component detachment due to vibration during operation, while also simplifying the assembly process.
[0042] Through the above technical solution, this application achieves stable installation of the rotating connection structure between the eccentric wheel 4 and the patting component 5, avoiding the problem of patting action deviation caused by bearing movement, and ensuring that the massage head 7 forms a regular and uniform patting trajectory on the calf surface, thereby improving the massage effect of relieving muscle stiffness.
[0043] This application is as follows Figure 5 As shown, a protrusion 22 is further provided on the outer periphery of the striking member 5; one end of the striking member 6 is hinged to the protrusion 22.
[0044] The protrusion 22 refers to a local raised structure provided on the outer peripheral surface of the striking member 5, which provides a reliable hinge fulcrum for the striking member 6. Since the protrusion 22 is located on the outer periphery of the striking member 5, the radius of its movement trajectory can be adjusted by adjusting the installation position of the protrusion 22, thereby controlling the swing amplitude of the striking member 6.
[0045] This application further proposes a massage chair, such as Figure 6As shown, it includes a leg support body 23 and a mechanism for shaking and tapping the calves. The base plate 1 is connected to the leg support body 23 so that the massage heads 7 at both ends of the tapping piece 6 can correspond to the left and right placement slots of the leg support body 23 respectively.
[0046] The leg support body 23 refers to the support structure that supports the user's legs. It can be implemented using a rigid plastic frame with grooves to fix the leg position. The left and right placement slots are symmetrically arranged accommodating spaces on both sides of the support structure. They can be implemented using an arc-shaped recessed structure to conform to the contour of the calf and limit the working range of the massage head 7. The connection between the base plate 1 and the leg support body 23 means fixing the mechanism to the support structure. This can be achieved using bolts or clips to ensure the relative positional stability of the drive mechanism 2 and the tapping component. The massage head 7 corresponding to the placement slot means that the tapping end matches the groove space. This can be achieved by adjusting the installation angle or height of the mechanism, allowing the tapping action to precisely target the muscle area.
[0047] Specifically, after the movement is fixed to the leg support body 23 via the base plate 1, the drive component 2 drives the tapping shaft 3 to rotate. The eccentric wheel 4 rotates with the shaft, generating periodic displacement. The tapping component 5 converts the rotational motion into linear reciprocating motion and transmits it to the striking component 6. The striking component 6 forms a lever structure with the central hinge point as the fulcrum, and the massage heads 7 at both ends swing up and down alternately under the traction of the tapping component 5. This creates a regular tapping motion on the surface of the calf muscle group. During this process, the rigid connection between the base plate 1 and the leg support body 23 prevents vibration deviation during the operation of the movement, ensuring that the massage heads 7 are always aligned with the target area.
[0048] Compared to existing technologies, traditional leg massage devices rely on static pressure generated by airbag compression or roller rolling, which can only provide pressure massage to the surface muscles. This solution uses mechanical transmission to generate dynamic tapping motions, simulating the high-frequency vibration characteristics of manual massage techniques, which can deeply stimulate muscle tissue and promote local blood circulation.
[0049] Through the above technical solution, this application can effectively alleviate the problems of calf muscle hypoxia and stiffness caused by exercise or prolonged standing. Dynamic tapping motions can enhance muscle tissue metabolic efficiency and accelerate lactic acid decomposition. Simultaneously, the symmetrical tapping pattern avoids excessive pressure on one side of the muscles, improving massage comfort. The rigid connection structure between the base plate 1 and the supporting body improves the stability of the equipment's operation, ensuring the accuracy and consistency of the tapping motions during prolonged use.
[0050] The above are merely preferred embodiments of this utility model. The protection scope of this utility model is not limited to the above embodiments. All technical solutions that fall within the scope of this utility model's concept are within the protection scope of this utility model.
[0051] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or component 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.
[0052] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified.
[0053] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; 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; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.
[0054] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.
Claims
1. A mechanism for calf-shaking and tapping, comprising a base plate and a drive disposed on the base plate; characterized in that, It also includes a tapping shaft rotatably mounted on the base plate, an eccentric wheel fixed on the tapping shaft, a tapping component rotatably connected to the eccentric wheel, and a tapping component with massage heads at both ends; The striking component is hinged to the base plate at the middle, and one end is hinged to the slapping component; the drive is used to drive the slapping shaft to rotate, thereby causing the eccentric wheel to rotate synchronously, thereby driving the slapping component to reciprocate, and thus driving the two ends of the striking component to perform reciprocating striking actions.
2. The mechanism for calf-shaking and tapping according to claim 1, characterized in that, The other end of the striking component is also provided with an elastic element that connects to the base plate.
3. The mechanism for calf-shaking and tapping according to claim 1, characterized in that, The striking shaft is also equipped with a large pulley; the drive output shaft is equipped with a small pulley; the large pulley and the small pulley are connected by a belt for transmission.
4. The mechanism for calf-shaking and tapping according to claim 1, characterized in that, Two bearing seats are provided on the base plate; the two ends of the slapping shaft are rotatably mounted on the bearing seats through a first bearing and a rubber bearing sleeve, respectively.
5. The mechanism for calf-shaking and tapping according to claim 1, characterized in that, The striking component is mounted on the eccentric wheel via a second bearing.
6. The mechanism for calf-shaking and tapping according to claim 5, characterized in that, The striking component has a mounting groove with a through hole on one side, and a first pressure cap is connected to this side; the bottom of the mounting groove has a first stepped surface; the eccentric wheel has a second stepped surface on the side away from the first stepped surface, and a second pressure cap is connected to the other side; the second bearing is mounted on the mounting groove through the first stepped surface and the first pressure cap; the eccentric wheel rotates on the inner ring of the second bearing through the second stepped surface and the second pressure cap.
7. The mechanism for calf-shaking and tapping according to claim 1, characterized in that, The outer periphery of the slapping component has a protrusion; one end of the striking component is hinged to the protrusion.
8. A massage chair, comprising a leg support body, characterized in that, It also includes a mechanism for calf shaking and tapping as described in any one of claims 1-7, wherein the base plate is connected to the leg support body so that the massage heads at both ends of the tapping member can respectively correspond to the left and right placement slots of the leg support body.