Massage machine core

Abstract

The invention provides a massage machine core. The massage machine core comprises a mounting frame, a driving assembly, a shoulder and neck massage assembly and a back and waist massage assembly. A rotary driving arm of the driving assembly is provided with a first eccentric shaft and a second eccentric shaft. The shoulder and neck massage assembly comprises a first connecting arm, a second connecting arm, an elastic arm and a neck and shoulder massage head; the first connecting arm is rotatably connected with the second connecting arm, the second connecting arm is rotatably connected with the mounting frame, the first connecting arm is rotatably connected with the first eccentric shaft, the elastic arm is connected with the first connecting arm, and the neck and shoulder massage head is mounted on the elastic arm. The back and waist massage assembly comprises a massage arm and a first waist massage head; the massage arm is provided with a back massage head, a first sliding groove and a rack and is rotationally connected with the second eccentric shaft. The first waist massage head penetrates through the first sliding groove and is rotationally connected with the mounting frame, and a first gear matched with the rack is arranged on the first waist massage head. The massage device is simple in structure, low in cost, large in massage range and diversified in mode.

Description

Technical Field

[0001] The present invention relates to the technical field of massage chairs, and particularly to a massage mechanism. Background Art

[0002] With the improvement of health awareness, massage devices with neck and back massage functions are highly favored, and the performance of the core component, the massage mechanism, directly determines the massage experience. In existing massage mechanisms, the neck and back massage components often adopt an independent drive structure, which requires multiple sets of power devices and transmission mechanisms, resulting in a large volume of the mechanism and cumbersome assembly, significantly increasing the production cost.

[0003] Some improvement solutions attempt to achieve linkage, but most transmit power through complex gear sets or link mechanisms, which not only easily cause problems of movement jamming but also are difficult to meet the massage range requirements of the neck and back. The massage heads of most mechanisms can only perform single-track movements, and the degree of conforming to the human body curve is insufficient, unable to fully cover the key massage areas of the neck, shoulders, and back, affecting the massage comfort and effect. Therefore, there is an urgent need for a massage mechanism with a simple structure, low cost, and capable of realizing the linkage of massage heads in multiple parts. Summary of the Invention

[0004] The present invention aims to at least solve one of the technical problems in the above technologies. For this purpose, the object of the present invention is to provide a massage mechanism, which has a simple structure, low cost, a large massage range, and diverse massage modes.

[0005] To achieve the above object, the present invention provides a massage mechanism, which includes: a mounting frame, a drive component, a neck and shoulder massage component, and a back massage component; The drive component is mounted on the mounting frame. The drive component includes a pair of rotating drive arms, and each rotating drive arm is provided with a first eccentric shaft and a second eccentric shaft deviating from its rotation axis, and the first eccentric shaft and the second eccentric shaft are respectively located on both sides of the rotation axis of the rotating drive arm; The neck and shoulder massage component includes a pair of neck and shoulder massage units. Each neck and shoulder massage unit includes a first connecting arm, a second connecting arm, an elastic arm, a neck massage head, and a shoulder massage head; the first connecting arm and the second connecting arm are rotatably connected, the second connecting arm and the mounting frame are rotatably connected, the first connecting arm and the first eccentric shaft are rotatably connected, the elastic arm is connected to the first connecting arm, and the neck massage head and the shoulder massage head are mounted on the elastic arm; The back and waist massage assembly includes a pair of back and waist massage units, each of which includes a massage arm and a first waist massage head. The massage arm is provided with a back massage head, a first slide groove, and a rack. The massage arm is rotatably connected to a second eccentric shaft. The first slide groove passes through the front and back of the massage arm. The first waist massage head passes through the first slide groove and is rotatably connected to the mounting bracket. The first waist massage head is provided with a first gear that matches the rack. When the massage arm moves, it can drive the back massage head to move synchronously. At the same time, the rack drives the first gear and the first waist massage head to rotate.

[0006] According to the present invention, a massage mechanism is proposed that uses a dual eccentric shaft drive component to separately link the shoulder and neck massage component and the back and waist massage component, significantly simplifying the transmission chain and making the overall structure more compact and concise, thus helping to control costs. The elastic arm of the shoulder and neck massage component can flexibly adapt to the curve of the human neck and shoulders. When the massage arm of the back and waist massage component moves, it not only drives the back massage head to move synchronously, but also drives the first waist massage head to rotate through the cooperation of rack and pinion, forming a composite massage coverage of the back and waist area, significantly expanding the effective massage range. In addition, the multi-directional motion characteristics brought by the eccentric shaft drive and the linkage effect between components allow the massage heads of each part to achieve a variety of motion combinations such as swinging and rotating, improving massage comfort and adaptability.

[0007] In addition, the massage mechanism proposed in the above embodiments of the present invention may also have the following additional technical features: Optionally, the first waist massage head includes a sliding shaft and an upper slider and a lower slider connected to the sliding shaft. The sliding shaft passes through the first sliding groove and is rotatably connected to the mounting bracket. The upper slider and the lower slider are located on the front and back of the massage arm respectively to restrict the massage arm from moving axially along the sliding shaft. The first gear is mounted on the sliding shaft and located between the upper slider and the lower slider.

[0008] Furthermore, the lower slider is provided with ball bearings, and the massage arm is provided with a rolling groove that matches the ball bearings.

[0009] Furthermore, the massage arm is also provided with a second sliding groove, which communicates with the first sliding groove, and the upper slider is located in the second sliding groove.

[0010] Furthermore, a reinforcing column is connected between the upper slider and the lower slider.

[0011] Optionally, it also includes a lifting drive component connected to the mounting frame to drive the mounting frame to move up and down.

[0012] Optionally, the first groove is disposed adjacent to the lower end of the massage arm, and the lower end of the massage arm is provided with a second waist massage head.

[0013] Optionally, the drive assembly includes a drive motor and a pair of second gears meshing with the output end of the drive motor, the second gears being connected to the rotary drive arm to drive the rotary drive arm to rotate.

[0014] Optionally, the drive assembly includes a rotating block, wherein one of the rotating drive arms has a rotating space, the rotating block is installed in the rotating space, and the inner sidewall of the rotating space has a first abutment and a second abutment. When switching between forward and reverse rotation, the rotating block can rotate freely in the rotating space. When the rotating block abuts against the first abutment or the second abutment, the rotating block drives the rotating drive arm to rotate forward or reverse.

[0015] Optionally, the elastic arm is flat, and the elastic arm is connected to the first connecting arm by overmolding. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the structure of the massage mechanism according to an embodiment of the present invention; Figure 2 for Figure 1 A structural diagram from another perspective; Figure 3 This is a schematic diagram of the structure of a driving component according to an embodiment of the present invention; Figure 4 This is a schematic diagram of the structure of the rotary drive arm according to an embodiment of the present invention; Figure 5 This is a schematic diagram of the structure of the massage arm and the first waist massage head according to an embodiment of the present invention; Figure 6 for Figure 5 A structural diagram from another perspective; Figure 7 This is a schematic diagram of the structure of a first waist massage head according to an embodiment of the present invention; Explanation of reference numerals in the attached figures: Mounting bracket 1; Drive assembly 2, rotary drive arm 21, first eccentric shaft 211, second eccentric shaft 212, rotation space 213, first rotating arm 214, second rotating arm 215, first abutting part 216, second abutting part 217, rotating block 22, drive motor 23, second gear 24; Neck and shoulder massage component 3, neck and shoulder massage unit 31, first connecting arm 311, second connecting arm 312, elastic arm 313, neck massage head 314, shoulder massage head 315; Back and waist massage assembly 4, back and waist massage unit 41, massage arm 411, back massage head 4111, first slide groove 4112, rack 4113, rolling groove 4114, second slide groove 4115, second waist massage head 4116, first waist massage head 412, first gear 4121, sliding shaft 4122, upper slider 4123, lower slider 4124, ball bearing 4125, reinforcing column 4126; Lifting drive component 5; Chair frame 6. Detailed Implementation

[0017] Embodiments of the present invention are described in detail below, examples of which are illustrated in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain the present invention, and should not be construed as limiting the present invention.

[0018] To better understand the above technical solutions, exemplary embodiments of the present invention will be described in more detail below with reference to the accompanying drawings. Although exemplary embodiments of the present invention are shown in the drawings, it should be understood that the present invention can be implemented in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided to enable a more thorough understanding of the present invention and to fully convey the scope of the invention to those skilled in the art.

[0019] To better understand the above technical solutions, the following will provide a detailed explanation of the technical solutions in conjunction with the accompanying drawings and specific implementation methods.

[0020] The following is for reference. Figures 1-7 The implementation of the massage mechanism proposed in the embodiments of the present invention will be described in detail.

[0021] According to an embodiment of the present invention, the massage mechanism includes: a mounting frame 1, a drive assembly 2, a shoulder and neck massage assembly 3, and a back and waist massage assembly 4; The drive assembly 2 is mounted on the mounting bracket 1. The drive assembly 2 includes a pair of rotating drive arms 21. Each rotating drive arm 21 is provided with a first eccentric shaft 211 and a second eccentric shaft 212 that are offset from its rotation axis. The first eccentric shaft 211 and the second eccentric shaft 212 are located on both sides of the rotation axis of the rotating drive arm 21, respectively. The shoulder and neck massage assembly 3 includes a pair of shoulder and neck massage units 31. Each shoulder and neck massage unit 31 includes a first connecting arm 311, a second connecting arm 312, an elastic arm 313, a neck massage head 314, and a shoulder massage head 315. The first connecting arm 311 and the second connecting arm 312 are rotatably connected. The second connecting arm 312 is rotatably connected to the mounting bracket 1. The first connecting arm 311 is rotatably connected to the first eccentric shaft 211. The elastic arm 313 is connected to the first connecting arm 311. The neck massage head 314 and the shoulder massage head 315 are mounted on the elastic arm 313. The back and waist massage assembly 4 includes a pair of back and waist massage units 41. Each back and waist massage unit 41 includes a massage arm 411 and a first waist massage head 412. The massage arm 411 is provided with a back massage head 4111, a first slide groove 4112 and a rack 4113. The massage arm 411 is rotatably connected to the second eccentric shaft 212. The first slide groove 4112 passes through the front and back of the massage arm 411. The first waist massage head 412 passes through the first slide groove 4112 and is rotatably connected to the mounting bracket 1. The first waist massage head 412 is provided with a first gear 4121 that matches the rack 4113. When the massage arm 411 moves, it can drive the back massage head 4111 to move synchronously. At the same time, the rack 4113 drives the first gear 4121 and the first waist massage head 412 to rotate.

[0022] In other words, the drive assembly 2 is mounted on the mounting bracket 1. The drive assembly 2 includes a pair of rotary drive arms 21. The rotary drive arms 21 are connected to the drive components of the drive assembly 2 to achieve the rotation of the rotary drive arms 21. The first eccentric shaft 211 and the second eccentric shaft 212 are respectively located on both sides of the rotation axis of the rotary drive arms 21. When the rotary drive arms 21 rotate, they can drive the first eccentric shaft 211 and the second eccentric shaft 212 on the rotary drive arms 21 to perform circular motion around the rotation axis of the rotary drive arms 21. One end of the first connecting arm 311 of the shoulder and neck massage assembly 3 is connected to the first... An eccentric shaft 211 is rotatably connected to the first connecting arm 311, and the other end of the first connecting arm 311 is rotatably connected to the mounting bracket 1. This allows the rotating drive arm 21 to rotate, causing the first connecting arm 311 to perform a compound motion involving both left-right and up-down movement. This, in turn, drives the neck massage head 314 and shoulder massage head 315 on the elastic arm 313 to perform compound massage actions. Furthermore, the elastic arm 313 provides elastic deformation capability for the neck massage head 314 and shoulder massage head 315, allowing them to better conform to the massage position and facilitate massage. The massage arm 411 of the back and waist massage assembly 4 is rotatably connected to a second eccentric shaft 212 at one end. The massage arm 411 has a first groove 4112 and a rack 4113 along its length. A first waist massage head 412 passes through the first groove 4112 and is rotatably connected to the mounting bracket 1. The first groove 4112 and the first waist massage head 412 form a sliding fit, allowing the rotating drive arm 21 to rotate and drive the massage arm 411 to perform a complex motion involving both left-right and up-down movement. When performing compound exercises, the massage arms 411 can drive the back massage heads 4111 on the massage arms 411 to move synchronously, which facilitates kneading and massaging the user's back. At the same time, the rack 4113 on the massage arms 411 cooperates with the first gear 4121 of the first waist massage head 412 to drive the first waist massage head 412 to rotate synchronously, which facilitates rotational massage of the user's waist. Moreover, when the first connecting arm 311 of the shoulder and neck massage component 3 moves downward, the massage arms 411 of the back and waist massage component 4 move upward synchronously, which facilitates vertical kneading and massaging of the user.

[0023] The power source for driving the rotary drive arm 21 can adopt an existing structure, such as a motor and gear set. The rotary drive arm 21 also has a first rotary arm 214 and a second rotary arm 215. A first eccentric shaft 211 is located at one end of the first rotary arm 214, and the other end of the first rotary arm 214 is connected to the power source. A first connecting arm 311 can be sleeved on the first eccentric shaft 211 through a bearing. One end of the second rotary arm 215 is detachably connected to the first eccentric shaft 211 by screws, which facilitates the installation of the first connecting arm 311. A second eccentric shaft 215 is installed at the other end of the second rotary arm 215. The spindle 212; the part of the first waist massage head 412 that passes through the first slide groove 4112 can be columnar; the massage arm 411 can be supported and limited by abutting against the mounting bracket 1 and / or the first waist massage head 412; the back massage head 4111 can be integrally formed on the massage arm 411; friction reducing plates can be provided between the first connecting arm 311 and the second connecting arm 312, and between the second connecting arm 312 and the mounting bracket; the massage protrusions on the first waist massage head 412 can be set to be coaxial or non-coaxial, and the protrusion height of the massage protrusions can be set to the same height or different heights.

[0024] Therefore, this massage mechanism, through the dual eccentric shafts of the drive component 2, respectively links the shoulder and neck massage component 3 and the back and waist massage component 4, greatly simplifying the transmission chain, making the overall structure more compact and concise, and facilitating cost control. The elastic arm 313 of the shoulder and neck massage component 3 can flexibly adapt to the curve of the human neck and shoulders. When the massage arm 411 of the back and waist massage component 4 moves, it not only drives the back massage head 4111 to move synchronously, but also drives the first waist massage head 412 to rotate through the cooperation of the rack 4113 and gears, forming a composite massage coverage of the back and waist area, significantly expanding the effective massage range. In addition, the multi-directional motion characteristics brought by the eccentric shaft drive and the linkage effect between components allow the massage heads of each part to achieve a variety of motion combinations such as swinging and rotating, improving massage comfort and adaptability; the rotating drive arm 21 can be a crank-like structure, and the second eccentric shaft 212 can be a bolt structure.

[0025] Optionally, the first waist massage head 412 includes a sliding shaft 4122 and an upper slider 4123 and a lower slider 4124 connected to the sliding shaft 4122. The sliding shaft 4122 passes through the first sliding groove 4112 and is rotatably connected to the mounting bracket 1. The upper slider 4123 and the lower slider 4124 are located on the front and back of the massage arm 411 respectively to limit the axial movement of the massage arm 411 along the sliding shaft 4122. The first gear 4121 is mounted on the sliding shaft 4122 and located between the upper slider 4123 and the lower slider 4124. Understandably, the sliding engagement between the sliding shaft 4122 and the first sliding groove 4112 enables the massage arm 411 to form a specific motion trajectory. The upper slider 4123 and the lower slider 4124 can jointly constrain the massage arm 411 to perform compound movements on a single plane, preventing the massage arm 411 from moving away along the axial direction of the sliding shaft 4122. This also strengthens the support for the massage arm 411, ensuring the stability of its movement. The first gear 4121, located between the upper slider 4123 and the lower slider 4124, provides protection for the first gear 4121, improving safety performance. The upper slider 4123 and the lower slider 4124 can both be square and fixedly mounted on the sliding shaft 4122. The back of the massage arm 411 can be designed with a concave rib structure. The first gear 4121 and the lower slider 4124 can both be placed in the concave part. This not only reduces the weight of the massage arm 411, but also ensures the strength of the massage arm 411, and ensures the safety and stability of the operation of the first gear 4121 and the lower slider 4124.

[0026] Furthermore, the lower slider 4124 is provided with ball bearings 4125, and the massage arm 411 is provided with a rolling groove 4114 adapted to the ball bearings 4125. Understandably, the cooperation between the ball bearings 4125 and the rolling groove 4114 converts the sliding friction between the lower slider 4124 and the massage arm 411 into rolling friction, significantly reducing resistance and wear during relative movement. It also prevents contact friction between the sliding shaft 4122 and the inner wall of the first groove 4112. This facilitates smoother and lighter compound movements of the massage arm 411, reduces the load on the drive assembly 2, and extends the service life of the massage arm 411 and the sliding shaft 4122. Simultaneously, it also supports the massage arm 411, improving its strength. Among them, the ball bearings 4125 can be set on the side plane of the lower slider 4124 facing the massage arm 411. The ball bearings 4125 can be set in two rows, and the two rows of ball bearings 4125 are set on both sides of the sliding shaft 4122 in a one-to-one correspondence. The rolling groove 4114 can be set in the concave part of the back of the massage arm 411, and the rolling groove 4114 can be integrally formed on the massage arm 411.

[0027] Furthermore, the massage arm 411 is also provided with a second slide groove 4115, which communicates with the first slide groove 4112, and the upper slider 4123 is located within the second slide groove 4115. Understandably, the second slide groove 4115 provides additional limiting and guiding for the upper slider 4123, working together with the first slide groove 4112 to constrain the movement trajectory of the massage arm 411. When the upper slider 4123 slides within the second slide groove 4115, it effectively limits the displacement of the massage arm 411 along a direction perpendicular to the plane of motion, preventing warping or wobbling. Simultaneously, the location of the upper slider 4123 within the second slide groove 4115 reduces the space occupied by the two components; moreover, the combined structure of the first slide groove 4112 and the second slide groove 4115 disperses the pressure of the upper slider 4123 on the massage arm 411, preventing excessive force on a single slide groove and thus deformation, enhancing the overall structural stability and durability. The width of the second slide groove 4115 is greater than the width of the first slide groove 4112, and both the first slide groove 4112 and the second slide groove 4115 are integrally formed on the massage arm 411.

[0028] Furthermore, a reinforcing post 4126 connects the upper slider 4123 and the lower slider 4124. Understandably, the reinforcing post 4126 strengthens the connection rigidity between the upper slider 4123 and the lower slider 4124, forming a stable overall frame and preventing relative displacement or deformation due to the repeated movement of the massage arm 411. Simultaneously, the reinforcing post 4126 can share the radial force borne by the sliding shaft 4122, preventing bending or breakage of the sliding shaft 4122 after long-term stress, thus ensuring the stability of the rotation of the first waist massage head 412. The reinforcing post 4126 can be integrally formed on the lower slider 4124, with the upper slider 4123 connected to the reinforcing post 4126. There can be two reinforcing posts 4126, located on opposite sides of the sliding shaft 4122.

[0029] Optionally, the system also includes a lifting drive 5, which is connected to the mounting frame 1 to drive the mounting frame 1 to move up and down. Understandably, the lower end of the lifting drive 5 is mounted on the chair frame 6, and the output end of the lifting drive 5 is connected to the mounting frame 1. The mounting frame 1 and the chair frame 6 are vertically connected, for example, by using a convex-concave mating structure to form a sliding connection for the mounting frame 1, or by using a guide rail and a slider to form a sliding connection for the mounting frame 1. The height of the neck massage head 314, shoulder massage head 315, back massage head 4111, first waist massage head 412, and second waist massage head 4116 can be adjusted by raising and lowering the mounting frame 1, thus facilitating use by users of different body types. The lifting drive 5 can be a pneumatic cylinder or a hydraulic cylinder.

[0030] Optionally, the first slide groove 4112 is positioned adjacent to the lower end of the massage arm 411, and the lower end of the massage arm 411 is provided with a second waist massage head 4116. Understandably, the placement of the first slide groove 4112 adjacent to the lower end of the massage arm 411 maximizes the travel of the second waist massage head 4116, significantly increasing its range of motion and better conforming to the curvature of the human waist. Simultaneously, the lower-end positioning of the first slide groove 4112 optimizes the distribution of the force fulcrum of the massage arm 411, reducing torque deviation during movement, making the composite movements of the massage arm 4111 more stable and precise, improving the efficiency and fit of the second waist massage head 4116 during massage, and further optimizing the massage experience.

[0031] Optionally, the drive assembly 2 includes a drive motor 23 and a pair of second gears 24 meshing with the output end of the drive motor 23. The second gears 24 are connected to the rotary drive arm 21 to drive the rotary drive arm 21 to rotate. Understandably, the drive motor 23 drives the pair of second gears 24 to rotate synchronously, ensuring the consistency of the output power of the two rotary drive arms 21 and avoiding deviation in the massage action due to asynchronous power on both sides. At the same time, this structure eliminates the need for a separate power source for each rotary drive arm 21, simplifying the drive system layout, reducing energy consumption and manufacturing costs, and the gear transmission is highly durable, adapting to the long-term, high-frequency operation requirements of the massage mechanism. The output shaft of the motor can be a helical gear or a worm gear, and the second gear 24 can be a helical gear. The output shaft of the second gear 24 is fixedly connected to the rotary drive arm 21, and the output shaft of the second gear 24 is located at the rotation center of the second gear 24.

[0032] Optionally, the drive assembly 2 includes a rotating block 22, wherein a rotating drive arm 21 is provided with a rotating space 213, the rotating block 22 is installed in the rotating space 213, and the inner sidewall of the rotating space 213 is provided with a first abutting part 216 and a second abutting part 217. When the rotating block 22 switches between forward and reverse rotation, it can rotate freely in the rotating space 213. When the rotating block 22 abuts against the first abutting part 216 or the second abutting part 217, the rotating block 22 drives the rotating drive arm 21 to rotate forward or reverse. Understandably, one of the two rotating drive arms 21 has a rotating block 22 inside. When the drive assembly 2 drives the rotating block 22 to rotate clockwise, the rotating block 22 abuts against the first abutment part 216 and drives the rotating drive arm 21 to rotate clockwise synchronously. At this time, the two rotating drive arms 21 move symmetrically in the center, so that the first connecting arms 311 of the left and right neck massage units move symmetrically in the center synchronously. When the rotating block 22 rotates in reverse, the rotating block 22 rotates 180° and abuts against the second abutment part 217, driving the rotating drive arm 21 to rotate in reverse. At this time, the left and right rotating drive arms 21 move alternately up and down. When the left massage unit moves upward, the right massage unit moves downward synchronously. In this way, when moving synchronously, the user's shoulders can receive the effect of shoulder pressing massage at the same time, and the sides of the neck and back can enjoy the effect of synchronous kneading and scraping massage. When moving asynchronously, the user's shoulders receive the effect of alternating shoulder pressing massage, and the sides of the neck and back can enjoy the effect of asynchronous kneading and scraping massage, and the massage recipient can also enjoy the neck twisting massage experience. Furthermore, the first waist massage head 412 can switch between forward and reverse rotation, allowing the user's waist to receive a thorough massage. Because there is a rotational space between the rotating block 22 and the rotating drive arm, the massage arm 411 and the first connecting arm 311 are prone to drooping under gravity. By positioning the first eccentric shaft 211 and the second eccentric shaft 212 on opposite sides of the rotation axis of the rotating drive arm 21, the massage arm 411 and the first connecting arm 311 can restrain each other, preventing them from drooping. The rotating block 22 can be racket-shaped, and the rotational space 213 can be fan-shaped.

[0033] Optionally, the elastic arm 313 is flat, and the elastic arm 313 is connected to the first connecting arm 311 by overmolding. Understandably, in traditional designs, the elastic arm 313 often requires bending and then additional screws to fix it to the first connecting arm 311, a cumbersome process whose connection stability is easily affected by loose screws. The flat structure of the elastic arm 313, combined with overmolding, allows for a direct integrated connection between the elastic arm 313 and the first connecting arm 311. This structure gives the elastic arm 313 uniform deformation capability, allowing it to flexibly bend along the neck and shoulder curve under force, making the massage head more conform to the human body. Compared to traditional mechanical connections, it eliminates the need for external fasteners such as bolts, reduces bending and assembly processes, resulting in a stronger connection and better overall integrity. The elastic arm 313 can be vertically embedded in the front of the first connecting arm 311. The elastic arm 313 can be provided with through holes or concave and convex structures on the edges at the injection molding point, so that the elastic arm 313 is firmly embedded in the first connecting arm 311. The neck massage head 314 can be provided in two pairs, one above the other. The shoulder massage head 315 and the previous pair of neck massage heads 314 can be installed on the outer and inner sides of the elastic arm 313 respectively. The next pair of neck massage heads 314 can be installed on the inner side of the elastic arm 313 through an L-shaped connecting plate.

[0034] In the description of this invention, 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," and "counterclockwise," 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.

[0035] 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 invention, "a plurality of" means two or more, unless otherwise explicitly specified.

[0036] In this invention, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," 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 invention according to the specific circumstances.

[0037] 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.

[0038] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the invention. The illustrative expressions of the above terms in this specification should not be construed as necessarily referring to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. In addition, those skilled in the art can combine and integrate the different embodiments or examples described in this specification.

[0039] Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention. Those skilled in the art can make changes, modifications, substitutions and variations to the above embodiments within the scope of the present invention.

Claims

1. A massage mechanism, characterized in that, include: Mounting bracket, drive assembly, shoulder and neck massage assembly, and back and waist massage assembly; The drive assembly is mounted on the mounting bracket. The drive assembly includes a pair of rotary drive arms. Each rotary drive arm is provided with a first eccentric shaft and a second eccentric shaft that are offset from its rotation axis. The first eccentric shaft and the second eccentric shaft are located on both sides of the rotation axis of the rotary drive arm, respectively. The shoulder and neck massage assembly includes a pair of shoulder and neck massage units. Each shoulder and neck massage unit includes a first connecting arm, a second connecting arm, an elastic arm, a neck massage head, and a shoulder massage head. The first connecting arm and the second connecting arm are rotatably connected, the second connecting arm is rotatably connected to the mounting bracket, the first connecting arm is rotatably connected to the first eccentric shaft, the elastic arm is connected to the first connecting arm, and the neck massage head and the shoulder massage head are mounted on the elastic arm. The back and waist massage assembly includes a pair of back and waist massage units, each of which includes a massage arm and a first waist massage head. The massage arm is provided with a back massage head, a first slide groove, and a rack. The massage arm is rotatably connected to a second eccentric shaft. The first slide groove passes through the front and back of the massage arm. The first waist massage head passes through the first slide groove and is rotatably connected to the mounting bracket. The first waist massage head is provided with a first gear that matches the rack. When the massage arm moves, it can drive the back massage head to move synchronously. At the same time, the rack drives the first gear and the first waist massage head to rotate.

2. The massage mechanism as described in claim 1, characterized in that, The first waist massage head includes a sliding shaft and an upper slider and a lower slider connected to the sliding shaft. The sliding shaft passes through the first sliding groove and is rotatably connected to the mounting bracket. The upper slider and the lower slider are located on the front and back of the massage arm respectively to restrict the massage arm from moving axially along the sliding shaft. The first gear is mounted on the sliding shaft and located between the upper slider and the lower slider.

3. The massage mechanism as described in claim 2, characterized in that, The lower slider is provided with ball bearings, and the massage arm is provided with a rolling groove that matches the ball bearings.

4. The massage mechanism as described in claim 2, characterized in that, The massage arm is also provided with a second sliding groove, which communicates with the first sliding groove, and the upper slider is located in the second sliding groove.

5. The massage mechanism as described in claim 2, characterized in that, A reinforcing column is also connected between the upper slider and the lower slider.

6. The massage mechanism as described in claim 1, characterized in that, It also includes a lifting drive component, which is connected to the mounting frame to drive the mounting frame to move up and down.

7. The massage mechanism as described in claim 1, characterized in that, The first groove is located near the lower end of the massage arm, and the lower end of the massage arm is provided with a second waist massage head.

8. The massage mechanism as described in claim 1, characterized in that, The drive assembly includes a drive motor and a pair of second gears that mesh with the output end of the drive motor. The second gears are connected to the rotary drive arm to drive the rotary drive arm to rotate.

9. The massage mechanism as described in claim 1, characterized in that, The drive assembly includes a rotating block, one of the rotating drive arms having a rotating space, the rotating block being installed within the rotating space, the inner sidewall of the rotating space having a first abutment portion and a second abutment portion, the rotating block being able to idle within the rotating space when switching between forward and reverse rotation; when the rotating block abuts the first abutment portion or the second abutment portion, the rotating block drives the rotating drive arm to rotate forward or reverse.

10. The massage mechanism as described in claim 1, characterized in that, The elastic arm is flat and is connected to the first connecting arm by overmolding.

Images