Transmission mechanism and massage equipment

Abstract

This invention discloses a transmission mechanism and a massage device. The transmission mechanism includes a load-bearing component, a drive component, a linkage assembly, and a swing arm. The drive component includes a first eccentric wheel rotatably mounted on the load-bearing component and a first drive member sleeved and driven with the first eccentric wheel. The first drive member has a universal joint. The linkage assembly is movably connected to the load-bearing component and includes a first connecting rod. One end of the first connecting rod has a first rotating part rotatably connected to the universal joint. The swing arm is rotatably connected to the load-bearing component, and one end of the swing arm is rotatably connected to the other end of the first connecting rod. The other end of the swing arm is rotatably connected to a first massage head. The drive component can drive the swing arm to reciprocate via the first connecting rod. This transmission mechanism simplifies the transmission structure to drive the massage head to swing, which is beneficial for miniaturizing the massage device.

Description

Technical Field

[0001] This disclosure relates to the field of health care device technology, and in particular to a transmission mechanism and a massage device. Background Technology

[0002] Massage devices, as health care instruments to relieve or eliminate physical fatigue, are becoming increasingly popular due to their flexibility and convenience. To achieve better massage effects, targeted massage devices are often designed based on the structural characteristics of different parts of the body, such as neck massagers, waist massagers, and shoulder and neck massagers. As people increasingly spend long hours in their work and daily lives, muscle discomfort is common, leading to a growing market demand for massage devices that can provide muscle massage.

[0003] In related technologies, some massage devices use an eccentric wheel to drive the massage head to oscillate. However, when the rotation direction of the eccentric wheel is not parallel to or on the same plane as the oscillation direction of the massage head, a complex transmission mechanism is required between the eccentric wheel and the massage head, which occupies a lot of internal space in the massage device and is not conducive to miniaturization. Summary of the Invention

[0004] This disclosure provides a transmission mechanism and a massage device. The transmission mechanism simplifies the transmission structure to drive the massage head to oscillate, which is beneficial for miniaturizing the massage device.

[0005] The technical solution is as follows: According to a first aspect of the present disclosure, a transmission mechanism is also provided, including a load-bearing assembly, a drive assembly, a linkage assembly, and a swing arm. The drive assembly includes a first eccentric wheel rotatably disposed on the load-bearing assembly and a first drive member sleeved and driven with the first eccentric wheel. The first drive member has a universal joint. The linkage assembly is movably connected to the load-bearing assembly and includes a first link. One end of the first link has a first rotating portion rotatably connected to the universal joint. The swing arm is rotatably connected to the load-bearing assembly, and one end of the swing arm is rotatably connected to the other end of the first link. The other end of the swing arm has a first connecting portion for rotatably connecting to a first massage head. The first connecting portion is disposed away from the load-bearing assembly. The drive assembly can drive the swing arm to reciprocate via the first link.

[0006] The technical solution will be further explained below: In one embodiment, the swing axis of the swing arm intersects with or is not parallel to the rotation axis of the first eccentric wheel.

[0007] And / or, one of the first rotating part and the universal joint part is provided with a ball joint hole, and the other is provided with a ball head that is hinged to the ball joint hole.

[0008] In one embodiment, the first driving member further includes a transmission ring that is sleeved and driven in conjunction with the first eccentric wheel, and a rod body that protrudes from the transmission ring, with a universal joint provided on the rod body.

[0009] In one embodiment, the universal joint includes a first connecting body with a first groove and a second connecting body with a second groove. The first connecting body is fixedly connected to the rod body, and the first connecting body and the second connecting body are fixedly connected so that the first groove and the second groove mate to form a ball joint hole. The first rotating part includes a ball head that is hinged to the ball joint hole.

[0010] In one embodiment, the first drive member further includes a first drive portion disposed between the universal joint and the first eccentric wheel. The transmission mechanism also includes a movable member spaced apart from the swing arm and disposed on the support assembly. The movable member includes a ball joint rotatably connected to the support assembly and a second connecting portion for connecting to the second massage head. The linkage assembly further includes a linkage unit, one end of which is rotatably connected to the first drive portion, and the other end of which is drively connected to the movable member. The second connecting portion is disposed away from the support assembly. The drive assembly can drive the movable member to reciprocate around the ball joint via the linkage unit.

[0011] In one embodiment, when the movable member reciprocates around the ball joint, the second connecting part reciprocates around a first predetermined trajectory, the first predetermined trajectory including a first closed curve.

[0012] In one embodiment, the linkage unit includes a track rod, one end of which is movably connected to a movable component, and the other end of which is provided with a first guide post. A bearing assembly is provided with an arc-shaped groove that guides and engages with the first guide post. A drive assembly is drively connected to the other end of the track rod to drive the first guide post to reciprocate along the arc-shaped groove.

[0013] In one embodiment, a gap exists between the first guide post and the arc-shaped groove. The sidewall of the arc-shaped groove includes a first guide surface and a second guide surface spaced apart from the first guide surface. When the first guide post makes guiding contact with the first guide surface and is spaced apart from the second guide surface, the second connecting portion moves along a first direction and forms a first trajectory. When the first guide post makes guiding contact with the first guide surface and is spaced apart from the second guide surface, the second connecting portion moves along a second direction and forms a second trajectory. The first direction and the second direction are opposite, and the first trajectory and the second trajectory are spaced apart.

[0014] In one embodiment, the sidewall of the arc groove further includes a first arc-shaped surface connecting one end of the first guide surface and one end of the second guide surface, and a second arc-shaped surface connecting the other end of the first guide surface and the other end of the second guide surface; When the first guide post sequentially engages with the first guide surface, the first arc-shaped surface, the second guide surface, and the second arc-shaped surface, the first trajectory and the second trajectory are connected end to end to form a second closed curve, and the first guide post can reciprocate along the second closed curve.

[0015] In one embodiment, the movable component further includes a first guide portion disposed between the ball joint portion and the second connecting portion, and one end of the trajectory rod is provided with a first mating portion that guides and engages with the first guide portion.

[0016] In one embodiment, one of the first guide portion and the first mating portion is provided with a first guide groove, and the other is provided with a second guide post that guides and mates with the first guide groove.

[0017] And / or, the track rod is also provided with a clearance groove for the moving part, and part of the moving part is inserted into the clearance groove.

[0018] In one embodiment, the first mating part includes a second guide post and two first mounting parts with notches spaced apart, the notches communicating with a clearance groove, and the first mounting parts having first mounting holes; the first mounting parts are inserted into the movable part through the notches so that the first mounting holes are opposite to the first guide groove; the second guide post is inserted into the first mounting holes and the first guide groove and is fixedly connected to the first mounting parts.

[0019] In one embodiment, the movable component further includes a third guide post disposed below the ball joint, the ball joint being disposed between the third guide post and the second connecting part, and one end of the trajectory rod being provided with a second guide groove that guides and cooperates with the third guide post.

[0020] In one embodiment, the first driving member further includes a transmission ring that engages with the first eccentric wheel and a rod protruding from the transmission ring, with a universal joint and the first driving part respectively spaced apart from the rod. And / or, the linkage unit includes a second linkage, one end of which is rotatably connected to the first driving part, and the other end of which is rotatably connected to the other end of the track rod.

[0021] In one embodiment, the drive assembly further includes an active member rotatably disposed on the support assembly and a driven member rotatably disposed on the support assembly. The active member and the driven member are in a transmission cooperation to drive the driven member to rotate. The first eccentric wheel is fixedly and transmissionally connected to the driven member and rotates coaxially.

[0022] In one embodiment, the drive assembly further includes a worm gear rotatably disposed on the support assembly and a worm wheel rotatably disposed on the support assembly. The worm gear and the worm wheel are in a transmission engagement, and the worm wheel is fixedly connected to the driving member and rotates coaxially.

[0023] According to a second aspect of the present disclosure, a massage device is also provided, including a power source, a second massage head, and a transmission mechanism as described in any of the above embodiments. The first massage head is connected to a first connecting portion, and the power source is disposed on a bearing component and is connected to a first eccentric wheel for transmission, so as to drive the first massage head to swing through a first connecting rod.

[0024] The technical solution will be further explained below: In one embodiment, the massage device further includes a second massage head, and the first drive member further includes a first drive portion disposed between the universal joint and the first eccentric wheel. The transmission mechanism further includes a movable member spaced apart from the swing arm and disposed on the support assembly. The movable member includes a ball joint rotatably connected to the support assembly and a second connecting portion connected to the second massage head. The linkage assembly further includes a linkage unit, one end of which is rotatably connected to the first drive portion, and the other end of which is drively connected to the movable member. The second connecting portion is disposed away from the support assembly. The drive assembly can drive the movable member to reciprocate around the ball joint via the linkage unit.

[0025] The technical solutions provided by the embodiments of this disclosure have at least the following beneficial effects: In use, the transmission ring engages with the first eccentric wheel, facilitating the use of a power source to drive the first eccentric wheel and generate eccentric driving force to drive the universal joint to reciprocate, thereby driving the first connecting rod to reciprocate along a set trajectory. During this process, because the universal joint is rotatably connected to the first rotating part, even if the driving force is not transmitted in the same plane, or if there are assembly or manufacturing errors, adjustments can be made through the universal joint, ensuring that the first connecting rod reliably drives the swing arm to oscillate, achieving the oscillating massage of the first massage head. Thus, the transmission mechanism simplifies the transmission structure to drive the massage head to oscillate, contributing to the miniaturization of the massage device.

[0026] It should be understood that the above general description and the following detailed description are exemplary and explanatory only, and are not intended to limit this disclosure. Attached Figure Description

[0027] The accompanying drawings, which form part of this disclosure, are used to provide a further understanding of this disclosure. The illustrative embodiments of this disclosure and their descriptions are used to explain this disclosure and do not constitute an undue limitation of this disclosure.

[0028] To more clearly illustrate the technical solutions in the embodiments of this disclosure, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of this disclosure. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0029] Figure 1 This is a schematic diagram of the structure of a massage device shown in one embodiment.

[0030] Figure 2 This is a schematic diagram of the structure of a massage device shown in another embodiment.

[0031] Figure 3 for Figure 2 The diagram shows a partial structural design of the massage device (the top of the supporting components is hidden).

[0032] Figure 4 for Figure 2 The diagram shows a partial view of the massage device from a top-down perspective (the bottom of the supporting components is hidden).

[0033] Figure 5 for Figure 3 The diagram shows a half-section of the universal joint.

[0034] Figure 6 The following is a schematic diagram of the transmission mechanism shown in some embodiments.

[0035] Figure 7 for Figure 6 The diagram shows the structure of the transmission mechanism from a low angle.

[0036] Figure 8 This is a schematic diagram of the structure of the massage device shown in another embodiment.

[0037] Figure 9 for Figure 8 A partial schematic diagram of the massage device shown from a downward-looking perspective.

[0038] Figure 10 for Figure 9 The diagram shown is an enlarged view of the massage device with the second link hidden.

[0039] Figure 11 for Figure 2 The diagram shows the structure after the second connecting part and the second massage head are assembled.

[0040] Figure 12 for Figure 11 The diagram shows a top view of the assembly structure.

[0041] Figure 13 for Figure 11 The diagram shows a half-section of the assembly structure along the axis of the rotating body (the locking fastener is in an anti-rotation state).

[0042] Explanation of reference numerals in the attached figures: 1. Massage device; 10. First massage head; 20. Power source; 30. Transmission mechanism; 100. Bearing component; 110. Arc groove; 101. Gap; 111. First guide surface; 112. Second guide surface; 113. First arc surface; 114. Second arc surface; 140. First slide groove; 200. Drive component; 210. First eccentric wheel; 220. First drive component; 221. Universal joint; 201. Ball joint hole; 221 1. First connecting body; 2001. First groove; 2004. Internal threaded hole; 2212. Second connecting body; 2002. Second groove; 2003. Through hole; 222. First driving part; 223. Transmission ring; 224. Rod body; 230. Driving wheel; 240. Driven wheel; 250. Worm; 260. Worm wheel; 270. Second driving component; 300. Linkage assembly; 310. First connecting rod; 311. First rotating part; 320. Connecting rod Unit; 321, Track rod; 3211, First guide post; 3212, First mating part; 3201, Second guide post; 3202, First mounting part; 3001, First mounting hole; 3103, Notch; 3213, Clearance groove; 3214, Second guide groove; 322, Second connecting rod; 400, Swing arm; 410, First connecting part; 420, Second rotating part; 430, Third rotating part; 500, Moving part; 510, Ball joint. ; 520, Second connecting part; 521, Mating hole; 522, Anti-rotation hole; 523, Third connecting part; 524, Mating part; 530, First guide part; 531, First guide groove; 540, Third guide post; 600, Locking fastener; 610, Elastic element; 611, Spring body; 612, Connecting body; 613, Force-applying body; 620, Protrusion; 40, Second massage head; 41, Rotating body; 41a, Clearance groove; 50, Third massage head. Detailed Implementation

[0043] To make the objectives, technical solutions, and advantages of this disclosure clearer, the following detailed description is provided in conjunction with the accompanying drawings and specific embodiments. It should be understood that the specific embodiments described herein are merely illustrative and do not limit the scope of protection of this disclosure.

[0044] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this disclosure belongs. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of this disclosure.

[0045] Massage devices, as health care tools to relieve or eliminate physical fatigue, are becoming increasingly popular due to their flexibility and convenience. To achieve better massage effects, targeted massage devices are often designed based on the structural characteristics of different parts of the body, such as neck massagers, waist massagers, and so on. Currently, there are numerous types and brands of massage devices available, giving consumers a wide range of choices. Therefore, how to win consumer favor and enhance product competitiveness has become an increasingly important issue for massage device manufacturers.

[0046] Currently, with the increasing prevalence of sedentary work and lifestyles, people are prone to neck and / or shoulder discomfort, leading to a growing market demand for massage devices that can massage these areas. For example, a shoulder and neck massager is specifically designed for the curves of the shoulder and neck. It uses shoulder massagers to massage and relax shoulder muscles, effectively relieving shoulder muscle fatigue. Simultaneously, it uses neck massagers to massage and relax neck muscles, effectively relieving neck muscle fatigue.

[0047] In related technologies, some massage devices use an eccentric wheel to drive the massage head to oscillate. However, when the rotation direction of the eccentric wheel is not parallel to or on the same plane as the oscillation direction of the massage head, a complex transmission mechanism is required between the eccentric wheel and the massage head. This results in a complex structure that occupies a significant amount of internal space in the massage device, hindering its miniaturization.

[0048] For example, to achieve non-planar transmission, the transmission mechanism needs to be equipped with a complex slider-linkage mechanism to convert forces in the relevant directions. The structure is relatively complex and prone to motion interference.

[0049] Therefore, it is necessary to provide a transmission mechanism that can drive the massage head to perform kneading motion, which is beneficial to improving the massage effect of the massage device.

[0050] To better understand the transmission mechanism of this disclosure, it is illustrated by using a massage device that applies the transmission mechanism.

[0051] like Figures 1 to 3 As shown, in some embodiments, a massage device 1 is provided, including a second massage head 40, a power source 20, and a transmission mechanism 30. Thus, the power source 20 drives the second massage head 40 to move through the transmission mechanism 30.

[0052] Among them, such as Figure 3 as well as Figure 4As shown, the transmission mechanism 30 includes a load-bearing assembly 100, a drive assembly 200, a connecting rod assembly 300, and a swing arm 400. The drive assembly 200 includes a first eccentric wheel 210 rotatably mounted on the load-bearing assembly 100 and a first drive member 220 sleeved and driven with the first eccentric wheel 210. The first drive member 220 has a universal joint 221. The connecting rod assembly 300 is movably connected to the load-bearing assembly 100 and includes a first connecting rod 310. One end of the first connecting rod 310 has a first rotating portion 311 rotatably connected to the universal joint 221. The swing arm 400 is rotatably connected to the load-bearing assembly 100, and one end of the swing arm 400 is rotatably connected to the other end of the first connecting rod 310. The other end of the swing arm 400 has a first connecting portion 410. The first connecting portion 410 is located away from the load-bearing assembly 100 and is rotatably connected to the first massage head 10. The drive assembly 200 drives the swing arm 400 to reciprocate via the first link 310. In use, the massage device 1 operates with the first drive component 220 engaged with the first eccentric wheel 210, allowing the power source 20 to drive the eccentric wheel 210 to generate an eccentric driving force that drives the universal joint 221 to reciprocate, thereby driving the first link 310 to reciprocate along a set trajectory. During this process, because the universal joint 221 is rotatably connected to the first rotating part 311, even if the driving force is not transmitted in the same plane, or if there are assembly or manufacturing errors, adjustments can be made via the universal joint 221, ensuring that the first link 310 reliably drives the swing arm 400 to reciprocate, thus achieving the swing massage of the first massage head 10. This simplifies the transmission structure of the transmission mechanism 30 in driving the massage head to swing, facilitating the miniaturization of the massage device 1.

[0053] Understandably, the universal joint 221 allows the rotation axis between the swing arm 400 and the first link 310 to be universally adjusted during the swinging process to accommodate assembly or manufacturing errors.

[0054] It should be noted that "the first driving component 220 and the first eccentric wheel 210 are sleeved and connected for transmission" should be interpreted in a broad sense. The first driving component 220 and the first eccentric wheel 210 are sleeved and connected, and the eccentric driving force of the first eccentric wheel 210 is converted into the reciprocating swing force of the universal joint.

[0055] It should be noted that the universal joint 221 can be implemented in various ways, including but not limited to a cross coupling, a ball joint 510, etc. Optionally, in some embodiments, one of the first rotating part 311 and the universal joint 221 is provided with a ball joint hole 201, and the other is provided with a ball head that is hinged to the ball joint hole 201.

[0056] like Figure 3As shown, in some embodiments, the swing axis of the swing arm 400 intersects with or is not in the same plane as the rotation axis of the first eccentric wheel 210. That is, the rotation direction of the eccentric wheel is not parallel to or in the same plane as the swing direction of the first massage head 10. Thus, during the transmission of the driving force of the first eccentric wheel 210 by the first connecting rod 310, the rotation of the swing arm 400 will also pull the other end of the first connecting rod 310 upward or downward, causing one end of the first connecting rod 310 to move accordingly. At this time, the universal joint 221 and the first rotating part 311 achieve a rotatable connection between one end of the first connecting rod 310 and the first driving member 220, so that the first connecting rod 310 can rotate relative to the first driving member 220, and the rotation axis can be adjusted to accommodate the upward or downward movement of one end of the first connecting rod 310.

[0057] like Figure 4 As shown, in some embodiments, the first driving member 220 further includes a transmission ring 223 that is sleeved and driven in conjunction with the first eccentric wheel 210, and a rod 224 protruding from the transmission ring 223, with a universal joint 221 disposed on the rod 224. Thus, the transmission ring 223 and the first eccentric wheel 210 are sleeved and driven in conjunction, facilitating the use of the power source 20 to drive the first eccentric wheel 210 to generate an eccentric driving force to drive the rod 224 to reciprocate, thereby enabling the universal joint 221 to reciprocate along a predetermined trajectory.

[0058] It should be noted that "setting a trajectory" includes straight-line trajectories, arc-shaped trajectories, and so on.

[0059] Optionally, the trajectory is set to an arc-shaped trajectory, so that the universal joint 221 pushes the first link 310 along the arc-shaped trajectory to lift the swing arm 400, so that the first joint 410 drives the first massage head 10 to swing away from the support component 100, or pull the first link 310 to pull the swing arm 400, so that the first joint 410 drives the first massage head 10 to swing closer to the support component 100.

[0060] like Figure 5As shown, in some embodiments, the universal joint 221 includes a first connecting body 2211 with a first groove 2001 and a second connecting body 2212 with a second groove 2002. The first connecting body 2211 is fixedly connected to the rod 224, and the first connecting body 2211 and the second connecting body 2212 are fixedly connected so that the first groove 2001 and the second groove 2002 cooperate to form a ball joint hole 201. The first rotating part 311 includes a ball head that is hinged to the ball joint hole 201. Thus, the linkage unit 320 of the second massage assembly is provided with a ball joint, which is disposed on the first connecting body 2211 through the first groove 2001. Then, the second connecting body 2212 is fixedly connected to the first connecting body 2211 and cooperates with the ball joint through the second groove 2002, which facilitates the connection between the ball joint and the ball joint 510 and is easy to assemble.

[0061] like Figure 5 As shown, in some embodiments, one of the first connector 2211 and the second connector 2212 is provided with at least two through holes 2003 spaced apart on the outer edge of the ball joint 510, and the other is provided with an internally threaded hole 2004 corresponding to the second through hole 2003. The drive assembly 200 includes a fastener (not shown) corresponding to the second through hole 2003. The fastener passes through the through hole 2003 and is screwed into the internally threaded hole 2004 to fix the first connector 2211 and the second connector 2212 together. In this way, the fastener passes through the through hole 2003 and is screwed into the internally threaded hole 2004 to fix the first connector 2211 and the second connector 2212 together, making them detachable and easy to assemble and disassemble with the ball joint.

[0062] Fasteners include bolts, screws, etc.

[0063] like Figures 2 to 4As shown, in some embodiments, the massage device 1 further includes a second massage head 40, and the first drive member 220 further includes a first drive portion 222 disposed between the universal joint portion 221 and the first eccentric wheel 210. The transmission mechanism 30 further includes a movable member 500 spaced apart from the swing arm 400 and disposed on the support assembly 100. The movable member 500 includes a ball joint portion 510 rotatably connected to the support assembly 100 and a second connecting portion 520 connected to the second massage head 40. The linkage assembly 300 further includes a linkage unit 320, one end of which is rotatably connected to the first drive portion 222, and the other end of which is driveably connected to the movable member 500. The second connecting portion 520 is disposed away from the support assembly 100. The drive assembly 200 can drive the movable member 500 to reciprocate around the ball joint portion 510 via the linkage unit 320. Thus, when the massage device 1 is in use, the power source 20 drives the first massage head 10 to swing via the first drive member 220, and also transmits power to the linkage unit 320 via the first drive member 220. The linkage unit 320 converts this power into a driving force for the movable member 500 to reciprocate around the ball joint 510, and then converts it into a massage force via the second massage head 40. Because the movable member 500 can reciprocate around the ball joint 510, the second massage head 40 can also perform a kneading motion around the ball joint 510, thereby simulating a human hand massage and improving the massage effect of the massage device 1.

[0064] It should be noted that the ball joint 510 can be implemented in various ways, including a ball joint or a ball joint hole 201, as long as it can be ball-jointed with the bearing component 100.

[0065] In some embodiments, when the movable member 500 reciprocates around the ball joint 510, the second connecting part 520 reciprocates around a first predetermined trajectory, which includes a first closed curve. Thus, the second connecting part 520 can rotate back and forth around the first closed curve, thereby enabling the second massage head 40 to also reciprocate around the closed curve, facilitating a kneading massage effect.

[0066] It should be noted that the first closed curve includes a two-dimensional closed curve (e.g., a circular curve, or an elliptical curve), or a three-dimensional closed curve (e.g., an elliptical trajectory curved around a convex surface of a sphere), etc.

[0067] Furthermore, the design of the first closed curve can be flexibly tailored to the characteristics of the human body's curves, and its specific implementation methods include spiral curves, circular curves, and so on. For example, the second massage head can knead the shoulders along the first closed curve. Alternatively, the second massage head can design the first closed curve according to the curve of the back to knead the back. Or, the second massage head can design the first closed curve according to the curve of the waist to knead the waist. Or, the second massage head can design the first closed curve according to the curve of the buttocks to knead the buttocks. Or, the second massage head can design the first closed curve according to the curve of the thighs to knead the thighs.

[0068] It should be noted that the first closed curve can be flexibly designed according to the curve of the body part to be massaged, as long as it can simulate the kneading massage effect of human hands. For example, when using the second massage head to massage the shoulders, the first closed curve includes a first circular curve that can move from the scapula towards the spine, reach a first preset position, and then move towards the neck. After reaching a second preset position above the first preset position, it moves again from the spine towards the scapula. This process is repeated to achieve kneading. Of course, the movement can also be reversed, moving from the spine towards the scapula to the second preset position... Alternatively, the first closed curve moves from the initial position down the rhomboid muscles (or other shoulder muscles) towards the back, then towards the spine, then towards the neck, and finally back to the initial position. This is repeated to achieve the kneading effect. Of course, the movement can also be reversed, moving from the initial position towards the neck… For example, when using the second massage head for a back massage, the first closed curve includes a second annular curve, which can move from the side of the body towards the spine, reach a first preset position, and then move towards the neck. After reaching a second preset position above the first preset position, it moves again from the spine towards the side of the body. This process is repeated to achieve kneading. Of course, the movement can also be reversed.

[0069] Alternatively, the first closed curve moves from the initial position down the latissimus dorsi (or other back muscles) towards the hips, then towards the spine, then towards the shoulders, and finally back to the initial position. This repeated motion achieves the kneading effect. Of course, the movement can also be reversed.

[0070] It should be noted that there is no limit to the number of the second massage heads, including but not limited to 1, 2, 3, etc., which can be flexibly designed according to actual massage needs.

[0071] For example, when the second massage head is used to massage the human shoulder, if there are two second massage heads, the movement of the second massage member can drive the two second massage heads to massage the upper and lower parts of the human shoulder simultaneously.

[0072] For example, when the second massage head is used to massage the back of the human body, if there are three second massage heads, the movement of the second massage head can drive the three second massage heads to massage the upper, middle and lower parts of the back at the same time.

[0073] The second massage head 40 moves around a closed curve, thus enabling it to knead and massage at least the shoulders and neck.

[0074] The second massage head 40 moves around a closed curve, thus enabling it to knead and massage at least the back of the body.

[0075] It should be noted that "kneading massage" should be interpreted broadly, including back-and-forth swaying, back-and-forth rotation, and back-and-forth movement along a set trajectory. The massage intensity on the human muscles can be applied back and forth from light to heavy.

[0076] Combination Figure 3 , Figure 4 , Figure 6 as well as Figure 7 As shown, in some embodiments, the linkage unit 320 includes a trajectory rod 321, one end of which is movably connected to the movable member 500, and the other end of the trajectory rod 321 is provided with a first guide post 3211. The bearing assembly 100 is provided with an arc-shaped groove 110 that guides and engages with the first guide post 3211. The drive assembly 200 is drively connected to the other end of the trajectory rod 321 to drive the first guide post 3211 to reciprocate along the arc-shaped groove 110.

[0077] like Figure 7 as well as Figure 10As shown, in some embodiments, a gap 101 (not shown) exists between the first guide post 3211 and the arc-shaped groove 110. The sidewall of the arc-shaped groove 110 includes a first guide surface 111 and a second guide surface 112 spaced apart from the first guide surface 111. When the first guide post 3211 is in guiding contact with the first guide surface 111 and spaced apart from the second guide surface 112, the second connecting portion 520 moves along a first direction and forms a first trajectory. When the first guide post 3211 is in guiding contact with the first guide surface 111 and spaced apart from the second guide surface 112, the second connecting portion 520 moves along a second direction and forms a second trajectory. The first direction and the second direction are opposite, and the first trajectory and the second trajectory are spaced apart. Thus, through the cooperation of the first trajectory and the second trajectory, the first guide post 3211 of the trajectory rod 321 can also deflect along the width direction of the arc-shaped groove 110 during its movement along the length direction, easily driving the second connecting portion 520 to move along a first closed curve.

[0078] like Figure 7 As shown, in some embodiments, the sidewall of the arcuate groove 110 also includes a first arcuate surface 113 connecting one end of the first guide surface 111 and one end of the second guide surface 112, and a second arcuate surface 114 connecting the other end of the first guide surface 111 and the other end of the second guide surface 112. When the first guide post 3211 sequentially guides and engages with the first guide surface 111, the first arcuate surface 113, the second guide surface 112, and the second arcuate surface 114, the first trajectory and the second trajectory are connected end to end to form a second closed curve, and the first guide post 3211 can reciprocate along the second closed curve. Thus, during the movement of the first guide post 3211 of the trajectory rod 321 along the arcuate groove 110, it can reciprocate around the second closed curve, thereby enabling the trajectory rod 321 to drive the second connecting part 520 to move along the first closed curve.

[0079] like Figure 6 As shown, in some embodiments, the movable member 500 further includes a first guide portion 530 disposed between the ball joint portion 510 and the second connecting portion 520, and one end of the track rod 321 is provided with a first mating portion 3212 that guides and engages with the first guide portion 530. Thus, through the engagement of the first guide portion 530 and the first mating portion 3212, the track rod 321 can drive the connecting member to reciprocate around the ball joint portion 510.

[0080] Optionally, such as Figure 6 As shown, in some embodiments, one of the first guide portion 530 and the first mating portion 3212 is provided with a first guide groove 531, and the other is provided with a second guide post 3201 that guides and mates with the first guide groove 531.

[0081] Optionally, such as Figure 6As shown, in some embodiments, the track rod 321 is also provided with a clearance groove 3213 for avoiding the movable member 500, and a portion of the movable member 500 is inserted into the clearance groove 3213.

[0082] like Figure 6 As shown, in some embodiments, the first mating part 3212 includes a second guide post 3201 and two first mounting parts 3202 spaced apart and forming a notch 3103. The notch 3103 communicates with the clearance groove 3213, and the first mounting part 3202 is provided with a first mounting hole 3001. The first mounting part 3202 is inserted into the movable member 500 through the notch 3103, so that the first mounting hole 3001 is opposite to the first guide groove 531. The second guide post 3201 is inserted into the first mounting hole 3001 and the first guide groove 531, and is fixedly connected to the first mounting part 3202. In this way, the trajectory rod 321 and the movable member 500 are nested and mated with each other, and the second guide post 3201 can cooperate with the first guide groove 531, so that when the trajectory rod 321 moves along the arc groove 110, it can push the movable member 500 to swing up and down, and deflect to the left and right during the up and down swing, thereby causing the second connecting part 520 to reciprocate around the first closed curve.

[0083] like Figures 8 to 10 As shown, in some embodiments, the movable member 500 further includes a third guide post 540 disposed below the ball joint 510. The ball joint 510 is disposed between the third guide post 540 and the second connecting part 520. One end of the trajectory rod 321 is provided with a second guide groove 3214 that guides and engages with the third guide post 540. Thus, through the engagement of the third guide post 540 and the second guide groove 3214, when the trajectory rod 321 moves along the arc-shaped groove 110, it can push the movable member 500 to swing up and down, and deflect to the left and right during the up-and-down swing, thereby causing the second connecting part 520 to reciprocate around the first closed curve.

[0084] like Figure 4 As shown, or Figure 9 As shown, in some embodiments, the first driving member 220 further includes a transmission ring 223 that is sleeved and driven in conjunction with the first eccentric wheel 210, and a rod 224 protruding from the transmission ring 223. A universal joint 221 and a first driving part 222 are disposed on the rod 224. Thus, by sleeved and driven in conjunction with the first eccentric wheel 210, the eccentric driving force of the first eccentric wheel 210 facilitates the reciprocating motion of the rod 224, thereby driving the universal joint 221 and the first driving part 222 to move synchronously, achieving synchronous driving of the first massage head 10 and the second massage head 40, thereby increasing the massage area of ​​the massage device 1. The universal joint 221 and the first driving part 222 are spaced apart, ensuring that the first connecting rod 310 does not interfere with the trajectory rod 321.

[0085] like Figure 4 As shown, or Figure 9 As shown, in some embodiments, the linkage unit includes a second linkage 322, one end of which is rotatably connected to the first drive unit 222, and the other end is rotatably connected to the other end of the trajectory rod 321. Thus, the first drive unit 222 drives the second linkage 322 to extend and retract, providing extension and retraction driving force for the movement of the trajectory rod 321.

[0086] Understandably, the above structure makes it easy to generate a drive trajectory rod 321 to drive the second connecting part 520 to move along the first closed curve, thereby realizing the kneading motion of the second massage head 40.

[0087] Reference Figure 4 or Figure 9 As shown, when the first eccentric wheel 210 rotates counterclockwise, it drives the universal joint 221 to swing and drives the first connecting rod 310 to pull the swing arm 400 away from the swing arm 400 to rotate. The first driving member 220 drives the first driving part 222 to drive the second connecting rod 322 to pull the track rod 321 to move around the arc groove 110, thereby driving the second massage head 40 to move away from the support component 100.

[0088] like Figure 6 or Figure 9 As shown, in some embodiments, the drive assembly 200 further includes a driving member rotatably disposed on the support assembly 100 and a driven member rotatably disposed on the support assembly 100. The driving member and the driven member are in a transmission cooperation to drive the driven member to rotate. The first eccentric wheel 210 is fixedly and transmissionally connected to the driven member and rotates coaxially. In this way, the driving member drives the first eccentric wheel 210 to rotate through the driven member, so that the first eccentric wheel 210 can be flexibly disposed around the driving wheel 230, making full use of the area space of the support assembly.

[0089] It should be noted that there are several ways to specifically implement "the driving wheel 230 driving the driven wheel 240 to rotate". For example, the driving wheel 230 can drive the driven wheel 240 to rotate through a flexible connecting rod (that is, forming a flexible transmission component such as a belt drive assembly or a chain drive assembly). Another example is... Figure 6 or Figure 9 As shown, in some embodiments, the driving wheel 230 is a driving gear, and the driven member is a driven gear that meshes with the driving gear. This improves the transmission accuracy and reliability between the driving wheel 230 and the driven wheel 240, which is beneficial for extending the service life of the massage device 1.

[0090] Alternatively, in some embodiments, the driving gear and the driven gear mesh directly, which can reduce the transmission distance and make the structure of the drive mechanism more compact.

[0091] In other embodiments, the driving gear can also be indirectly meshed with the driven gear through the transmission gear, so that the position between the driving gear and the driven gear can be flexibly set, reducing the difficulty of arranging the massage device 1.

[0092] Optionally, in some embodiments, the first eccentric wheel 210 is integrally formed and fixed with the driven member. This reduces assembly steps and improves the assembly efficiency of the drive mechanism.

[0093] It should be noted that the power source 20 can be implemented in various ways, as long as it can output rotational power to drive the driving component to rotate. For example, the power source 20 includes a motor. In addition, the power source 20 can be directly connected to the driving component for transmission, or it can be connected to the driving component for transmission through other transmission structures.

[0094] like Figure 6 or Figure 9 As shown, in some embodiments, the drive assembly 200 further includes a worm 250 rotatably disposed on the support assembly 100 and a worm wheel 260 rotatably disposed on the support assembly 100. The worm 250 and the worm wheel 260 are in a transmission engagement, and the worm wheel 260 is fixedly and transmissionally connected to the driving member and rotates coaxially. In this way, the transmission connection between the power source 20 and the driving wheel 230 is achieved by utilizing the engagement of the worm 250 and the worm wheel 260, allowing the power source 20 to be flexibly positioned radially on the driving wheel 230, reducing the difficulty of arranging the power source 20.

[0095] like Figures 4 to 6 As shown, the support assembly 100 includes at least a support member for supporting the driving gear, driven gear, first eccentric wheel 210, second drive member 270, first drive member 220, and transmission assembly, and a protective shell that cooperates with the support member to protect the driving gear, driven gear, worm 250, and worm wheel 260. This prevents foreign objects from entering the transmission gaps of the driving gear and driven gear, or the transmission gaps of the transmission assembly, which could cause damage or jamming. This effectively improves the protective performance of the massage device 1, thereby extending its service life.

[0096] Combination Figure 6 , Figure 8 as well as Figure 9In some embodiments, the drive assembly 200 further includes a second drive member 270 coaxially connected to the driven member. The second drive member 270 protrudes from the driven wheel 240 away from the first eccentric wheel 210 and is connected to the third massage head 50. Thus, when the massage device 1 is in use, the third massage head 50 is arranged radially along the rotation axis of the driven member, providing sufficient space for movement between the third massage head 50 and the first massage head 10. Furthermore, the power source 20 is connected to the worm gear 250, facilitating the transmission of power from the power source 20 to the driving member. The driving member then drives the driven member to rotate, transmitting power to the second drive member 270 and the first drive member 220 respectively. This converts a single input power into two driving forces, each driving at least two massage heads to move synchronously.

[0097] Reference Figure 8 as well as Figure 9 As shown, the swing arm 400 includes a second rotating part 420 rotatably connected to the support assembly 100 and a third rotating part 430 rotatably connected to the first connecting rod 310. The second rotating part 420 and the third rotating part 430 are spaced apart so that the swing arm forms a lever structure, which facilitates the third rotating part 430 to rotate via the first connecting rod 310, thereby driving the first massage head 10 on the first connecting part 410 to rotate.

[0098] like Figures 11 to 13 As shown, in some embodiments, the massage device 1 further includes a locking fastener 600 disposed between the third connecting portion 523 and the second massage head 40. The third connecting portion 523 is movably connected to the support assembly 100, and the second massage head 40 is rotatably connected to the third connecting portion 523. The locking fastener 600 has a released state in which the second massage head 40 is released and a locked state in which the second massage head 40 is fixed to the third connecting portion 523. When the locking fastener 600 is in the released state, the second massage head 40 can rotate relative to the third connecting portion 523.

[0099] When a user needs a neck and shoulder massage, the locking fastener 600 secures the second massage head 40 to the third connecting part 523 and activates the power source 20. This allows the second massage head 40 to massage the user's neck and shoulders (or back, shoulders, etc.) via the third connecting part 523. During this process, if the user feels that the massage range of the second massage head 40 cannot reach the uncomfortable areas of the neck and shoulders, they can operate the locking fastener 600 to release the second massage head 40, allowing it to rotate relative to the third connecting part 523 and around the neck and shoulders. After adjusting the second massage head 40 to the desired position, the locking fastener 600 is operated again to secure the second massage head 40 to the third connecting part 523. The power source 20 is then activated again, allowing the second massage head 40 to massage the user's uncomfortable areas via the third connecting part 523. Thus, the position of the massage head of the massage device 1 is adjustable, meeting the user's massage needs for different areas of the neck and shoulders, thereby improving the user experience of the massage device 1.

[0100] It should be noted that "shoulder and neck" should be interpreted broadly, including the junction of the shoulder and neck, or at least one of the lower part of the third cervical vertebra and the upper part of the shoulder, encompassing the area containing the upper trapezius muscle, or the area containing the upper trapezius and levator scapulae muscles. Understandably, refer to... Figure 2 As shown, the neck and shoulder area is a common source of neck and shoulder pain and stiffness, typically including the areas near the sides of the neck (3) and the back (4). Traditional massage devices (1) usually only massage the lateral areas near the neck (3) or the back area near the cervical spine, resulting in limited massage coverage and failing to meet the user's needs for massaging different areas of the neck and shoulder. However, by adjusting the position of the second massage head (40) relative to the third connecting part (523) of the massage device (1) disclosed herein, massage can be achieved for both the lateral areas near the neck (3) and the back area near the cervical spine.

[0101] It should be noted that the locking device 600 can be implemented in various ways, including but not limited to elastic locking, threaded locking, snap locking, etc.

[0102] like Figures 11 to 13As shown, in some embodiments, the locking fastener 600 includes an elastic member 610 disposed in one of the third connecting portion 523 and the second massage head 40, and a protrusion 620 fixed in the elastic member 610. The other of the third connecting portion 523 and the second massage head 40 is provided with a plurality of anti-rotation holes 522 spaced apart in a circumferential direction. When the locking fastener 600 is in the loose state, the elastic member 610 is in a non-reset state, allowing the protrusion 620 to separate from the anti-rotation hole 522. When the locking fastener 600 is in the locked state, the elastic member 610 is in a reset state, allowing the protrusion 620 to be inserted and fixed into the anti-rotation hole 522. Thus, when it is necessary to adjust the position of the second massage head 40, force is applied directly or indirectly to the elastic member 610, causing the elastic member 610 to displace and causing the protrusion 620 to separate from the corresponding anti-rotation hole 522, thereby loosening the locking fastener 600 and facilitating the rotation of the second massage head 40. After adjusting the second massage head 40 to a suitable position, the protrusion 620 is positioned opposite to the other anti-rotation hole 522. The elastic element 610 is released, causing it to reset and insert the protrusion 620 into the other anti-rotation hole 522, thus locking the second massage head 40 to the third connecting part 523. This method is easy to implement and simple to operate.

[0103] It should be noted that rings include circles, ellipses, and polygonal rings, etc.

[0104] Optionally, the elastic element 610 is disposed on the third connecting part 523, and the anti-rotation hole 522 is disposed on the second massage head 40.

[0105] Optionally, the elastic element 610 is disposed on the second massage head 40, and the anti-rotation hole 522 is disposed on the third connecting part 523.

[0106] Furthermore, in some embodiments, the second massage head 40 is provided with a rotating body 41, and the third connecting portion 523 is provided with a mating hole 521 that rotatably engages with the rotating body 41. An anti-rotation hole 522 is provided in the third connecting portion 523 and communicates with the mating hole 521. An elastic member 610 is provided in the rotating body 41 so that the protrusion 620 is movably disposed between the mating hole 521 and the anti-rotation hole 522. Thus, the second massage head 40 and the third connecting portion 523 are rotatably connected by the rotating body 41 and the mating hole 521. By providing the elastic member 610 in the rotating body 41, it can be inserted into the mating hole 521 as the rotating body 41 is inserted, allowing the protrusion 620 to be movably disposed between the anti-rotation hole 522 and the mating hole 521. This facilitates the separation or insertion / fixing of the protrusion 620 from the anti-rotation hole 522 by the elastic member 610. This ensures that the elastic element 610 fits tightly with the second massage head 40 and the third connecting part 523, and that the installation is reliable.

[0107] Optionally, in some embodiments, the elastic element 610 is in the form of a spring sheet. At least one of the sidewalls of the rotating body 41 and the mating hole 521 is provided with a first clearance groove 41a. The elastic element 610 can move and / or deform within the first clearance groove 41a, so that the elastic element 610 can switch between a non-reset state and a reset state. In this way, the elastic element 610 is in the form of a spring sheet, which is easy to assemble into the first clearance groove 41a, and can move and / or deform within the first clearance groove 41a to provide an elastic reset force for the protrusion 620 to reset to be inserted and fixed with the anti-rotation hole 522. Moreover, it does not affect the rotation of the rotating body 41 and the mating hole 521.

[0108] Optionally, in some embodiments, the first clearance groove 41a is provided on the rotating body 41. This facilitates full utilization of the internal space of the rotating body 41 to provide the first clearance groove 41a, so that the third connecting part 523 and the rotating body 41 are smaller in size and more compact in structure while meeting strength requirements.

[0109] like Figure 12 as well as Figure 13 As shown, in some embodiments, the elastic element 610 includes a spring body 611 disposed in the first clearance groove 41a, a connecting body 612 bent and connected to the spring body 611, and a force-applying body 613 bent and connected to the spring body 611. The connecting body 612 is fixedly connected to the end of the rotating body 41, and at least a portion of the force-applying body 613 is located outside the mating hole 521. Thus, the spring body 611 can be easily disposed on the rotating body 41 via the connecting body 612, and when the rotating body 41 is inserted into the mating hole 521, it will also drive the spring body 611 to be inserted into the mating hole 521, making it easy to pre-tighten the spring body 611, so that the protrusion 620 and the anti-rotation hole 522 can be reliably stopped and engaged.

[0110] It should be noted that the connection between the third connecting part 523 and the supporting component 100, as well as the connection method of the trajectory rod 321, can be varied, as long as the third connecting part 523 can drive the second massage head 40 to move along a set trajectory. The set trajectory includes straight lines, arcs, and closed curves, etc.

[0111] like Figures 12 to 13 As shown, in some embodiments, the third connecting portion 523 includes a third connecting portion 523 disposed at one end of the third connecting portion 523 and a mating portion 524 that is drively connected to the track rod 321. The third connecting portion 523 is rotatably connected to the support assembly 100, and the mating portion 524 is disposed between the second massage head 40 and the third connecting portion 523. In this way, a linkage effect can easily be formed between the third connecting portion 523 and the mating portion 524, and the second massage head 40 can move around the third connecting portion 523 by applying force through the mating portion 524.

[0112] In the description of this disclosure, 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," "axial," "radial," and "circumferential" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this disclosure 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 disclosure.

[0113] Furthermore, the terms "first," "second," etc., 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 with "first," "second," etc., may explicitly or implicitly include at least one of that feature. In the description of this disclosure, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0114] In this disclosure, unless otherwise expressly specified and limited, the terms "installation," "connection," "linking," "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, and they can refer to the internal communication of two components or the interaction between two components, unless otherwise expressly limited. Those skilled in the art can understand the specific meaning of the above terms in this disclosure according to the specific circumstances.

[0115] In this disclosure, unless otherwise expressly specified and limited, "above" or "below" the second feature can mean that the first and second features are in direct contact, or that the first and second features are in indirect contact through an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0116] It should be noted that when a component is described as "fixed to," "set on," "fixed to," or "mounted on" another component, it can be directly on the other component or there may be an intervening component. When a component is considered to be "connected" to another component, it can be directly connected to the other component or there may be an intervening component. Furthermore, when a component is considered to be "transmittingly connected" to another component, the two can be fixed in a detachable or non-detachable manner, as long as power transmission can be achieved. For example, sleeve transmission fits, snap-fit ​​transmission fits, pin fixings, non-cylindrical transmission fits, integral molding fixings, welding, etc., can be achieved in traditional technologies and will not be elaborated here.

[0117] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0118] The above embodiments are merely illustrative of several implementation methods of this disclosure, and their descriptions are relatively specific and detailed. However, they should not be construed as limiting the scope of the invention patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this disclosure, and these all fall within the protection scope of this disclosure.

Claims

1. A transmission mechanism, characterized in that, include: Support component (100); The drive assembly (200) includes a first eccentric wheel (210) rotatably disposed on the bearing assembly (100) and a first drive member (220) sleeved and driven in cooperation with the first eccentric wheel (210). The first drive member (220) is provided with a universal joint (221). A linkage assembly (300) is movably connected to the load-bearing assembly (100). The linkage assembly (300) includes a first link (310), one end of which is provided with a first rotating part (311) rotatably connected to the universal joint (221); and A swing arm (400) is rotatably connected to the bearing assembly (100), and one end of the swing arm (400) is rotatably connected to the other end of the first connecting rod (310), and the other end of the swing arm (400) is used to connect to the first massage head (10); The drive assembly (200) is capable of driving the swing arm (400) to reciprocate through the first link (310); The first drive member (220) further includes a first drive part (222) disposed between the universal joint (221) and the first eccentric wheel (210); the transmission mechanism (30) further includes a movable member (500) spaced apart from the swing arm (400) and disposed on the support assembly (100), the movable member (500) including a ball joint (510) rotatably connected to the support assembly (100) and a second connecting part (520) for connecting to the second massage head (40). The linkage assembly (300) further includes a linkage unit (320), one end of which is rotatably connected to the first drive unit (222), and the other end of which is drively connected to the movable member (500). The second connection part (520) is disposed away from the bearing assembly (100). The first drive unit (222) can drive the movable member (500) to reciprocate around the ball joint (510) through the linkage unit (320).

2. The transmission mechanism (30) according to claim 1, characterized in that, The swing axis of the swing arm (400) intersects with or is not parallel to the rotation axis of the first eccentric wheel (210); And / or, one of the first rotating part (311) and the universal joint part (221) is provided with a ball joint hole (201), and the other is provided with a ball head that is hinged to the ball joint hole (201); And / or, the other end of the swing arm (400) is provided with a first connecting portion (410) for connecting with the first massage head (10), the first connecting portion (410) being disposed away from the support assembly (100).

3. The transmission mechanism (30) according to claim 1, characterized in that, The first driving member (220) further includes a transmission ring (223) that is sleeved and driven with the first eccentric wheel (210) and a rod (224) that protrudes from the transmission ring (223), and the universal joint (221) is disposed on the rod (224).

4. The transmission mechanism (30) according to claim 3, characterized in that, The universal joint (221) includes a first connector (2211) with a first groove (2001) and a second connector (2212) with a second groove (2002). The first connector (2211) is fixedly connected to the rod (224), and the first connector (2211) and the second connector (2212) are fixedly connected so that the first groove (2001) and the second groove (2002) cooperate to form a ball joint hole (201). The first rotating part (311) includes a ball head that is hinged to the ball joint hole (201).

5. The transmission mechanism (30) according to any one of claims 1 to 4, characterized in that, When the movable part (500) reciprocates around the ball hinge (510), the second connecting part (520) reciprocates around a first predetermined trajectory, the first predetermined trajectory including a first closed curve.

6. The transmission mechanism (30) according to claim 1, characterized in that, The linkage unit (320) includes a track rod (321), one end of which is movably connected to the movable part (500), and the other end of which is provided with a first guide post (3211). The bearing assembly (100) is provided with an arc-shaped groove (110) that guides and cooperates with the first guide post (3211). The first drive unit (222) is connected to the other end of the track rod (321) to drive the first guide column (3211) to reciprocate along the arc groove (110).

7. The transmission mechanism (30) according to claim 6, characterized in that, A gap (101) exists between the first guide post (3211) and the arc-shaped groove (110). The sidewall of the arc-shaped groove (110) includes a first guide surface (111) and a second guide surface (112) spaced apart from the first guide surface (111). When the first guide post (3211) is in guiding contact with the first guide surface (111) and spaced apart from the second guide surface (112), the second connecting part (520) moves along a first direction and forms a first trajectory. When the first guide post (3211) is in guiding contact with the first guide surface (111) and spaced apart from the second guide surface (112), the second connecting part (520) moves along a second direction and forms a second trajectory. Wherein, the first direction is opposite to the second direction, and the first trajectory and the second trajectory are spaced apart.

8. The transmission mechanism (30) according to claim 7, characterized in that, The sidewall of the arc groove (110) also includes a first arc surface (113) connecting one end of the first guide surface (111) and one end of the second guide surface (112), and a second arc surface (114) connecting the other end of the first guide surface (111) and the other end of the second guide surface (112); When the first guide post (3211) sequentially engages with the first guide surface (111), the first arc surface (113), the second guide surface (112), and the second arc surface (114), the first trajectory and the second trajectory are connected end to end to form a second closed curve, and the first guide post (3211) can reciprocate along the second closed curve.

9. The transmission mechanism (30) according to claim 6, characterized in that, The movable component (500) further includes a first guide portion (530) disposed between the ball joint portion (510) and the second connecting portion (520), and one end of the trajectory rod (321) is provided with a first mating portion (3212) that guides and cooperates with the first guide portion (530).

10. The transmission mechanism (30) according to claim 9, characterized in that, One of the first guide portion (530) and the first mating portion (3212) is provided with a first guide groove (531), and the other is provided with a second guide post (3201) that guides and mates with the first guide groove (531); And / or, the track rod (321) is also provided with a clearance groove (3213) to avoid the movable member (500), and a portion of the movable member (500) is inserted into the clearance groove (3213).

11. The transmission mechanism (30) according to claim 10, characterized in that, The first mating part (3212) includes a second guide post (3201) and two first mounting parts (3202) spaced apart and forming notches (3103). The notches (3103) communicate with the clearance groove (3213). The first mounting parts (3202) are provided with first mounting holes (3001). The first mounting parts (3202) are inserted into the movable part (500) through the notches (3103) so that the first mounting holes (3001) are opposite to the first guide groove (531). The second guide post (3201) is inserted into the first mounting holes (3001) and the first guide groove (531) and is fixedly connected to the first mounting parts (3202).

12. The transmission mechanism (30) according to claim 6, characterized in that, The movable component (500) also includes a third guide post (540) disposed below the ball joint (510), the ball joint (510) being disposed between the third guide post (540) and the second connecting part (520), and one end of the trajectory rod (321) being provided with a second guide groove (3214) that guides and cooperates with the third guide post (540).

13. The transmission mechanism (30) according to any one of claims 6 to 12, characterized in that, The first driving member (220) further includes a transmission ring (223) that is sleeved and driven in cooperation with the first eccentric wheel (210) and a rod (224) that protrudes from the transmission ring (223). The universal joint (221) and the first driving member (222) are respectively spaced apart from the rod (224). And / or, the linkage unit includes a second linkage (322), one end of which is rotatably connected to the first drive unit (222), and the other end is rotatably connected to the other end of the track rod (321).

14. The transmission mechanism (30) according to claim 1, characterized in that, The drive assembly (200) further includes an active member rotatably disposed on the support assembly (100) and a driven member rotatably disposed on the support assembly (100). The active member and the driven member are in a transmission cooperation to drive the driven member to rotate. The first eccentric wheel (210) is fixedly and transmissionally connected to the driven member and rotates coaxially.

15. The transmission mechanism (30) according to claim 14, characterized in that, The drive assembly (200) further includes a worm (250) rotatably disposed on the support assembly (100) and a worm wheel (260) rotatably disposed on the support assembly (100). The worm (250) and the worm wheel (260) are in a transmission cooperation, and the worm wheel (260) is fixedly and transmissionally connected to the driving member and rotates coaxially.

16. A massage device, characterized in that, The device includes a power source (20), a first massage head (10), and a transmission mechanism (30) as described in any one of claims 1 to 15. The first massage head (10) is connected to the other end of the swing arm (400). The power source (20) is disposed on the bearing assembly (100) and is connected to the first eccentric wheel (210) for transmission, so as to drive the first massage head (10) to swing through the first connecting rod (310).

17. The massage device (1) according to claim 16, characterized in that, The massage device (1) further includes a second massage head (40), and the first drive member (220) further includes a first drive part (222) disposed between the universal joint (221) and the first eccentric wheel (210); the transmission mechanism (30) further includes a movable part (500) disposed at a distance from the swing arm (400) and on the support assembly (100), the movable part (500) includes a ball joint (510) rotatably connected to the support assembly (100) and a second connecting part (520) connected to the second massage head (40), the linkage assembly (300) further includes a linkage unit (320), one end of the linkage unit (320) is rotatably connected to the first drive part (222), the other end of the linkage unit (320) is drively connected to the movable part (500), and the second connecting part (520) is disposed away from the support assembly (100); The drive assembly (200) is capable of driving the movable part (500) to reciprocate around the ball joint (510) via the link unit (320).

Images