Massage head assembly and massage device

Abstract

The utility model discloses a massage head subassembly and massage equipment. The massage head subassembly and drive mechanism detachable connection, and drive mechanism includes drive rod. Massage head subassembly includes massage head, snap ring and limit shaft sleeve. Massage head is equipped with installation cavity and with installation cavity's installation port. The snap ring sets up in the installation cavity. The snap ring is equipped with the snap hole of buckle cooperation with drive rod. Limit shaft sleeve is equipped with the cooperation hole for with drive rod insertion joint cooperation. Limit shaft sleeve inserts into the installation cavity through the installation port, and with massage head fixed connection, to with the snap ring limit in the installation cavity. The massage head subassembly can be with the drive rod of massage equipment quick assembly and disassembly, is favorable to improve massage head subassembly replacement efficiency.

Description

Technical Field

[0001] This disclosure relates to the field of health care device technology, and in particular to a massage head assembly 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 usually designed according to the structural characteristics of different parts of the human body, such as neck massage devices, waist massage devices, and dual-area massage devices.

[0003] In related technologies, the massage heads of most massage devices are typically fixed to the drive rod with bolts. This requires the use of tools such as wrenches to disassemble the massage heads, which is detrimental to improving the efficiency of massage head replacement. Utility Model Content

[0004] This disclosure provides a massage head assembly and a massage device. The massage head assembly can be quickly attached to and detached from the drive rod of the massage device, which helps to improve the replacement efficiency of the massage head assembly.

[0005] The technical solution is as follows:

[0006] According to a first aspect of the present disclosure, a massage head assembly is also provided, detachably connected to a drive mechanism, the drive mechanism including a drive rod. The massage head assembly includes a massage head, a retaining ring, and a limiting sleeve. The massage head has a mounting cavity and a mounting port communicating with the mounting cavity. The retaining ring is disposed within the mounting cavity. The retaining ring has a retaining hole for engaging with the drive rod. The limiting sleeve has a mating hole for inserting with the drive rod. The limiting sleeve is inserted into the mounting cavity through the mounting port and fixedly connected to the massage head to confine the retaining ring within the mounting cavity.

[0007] The technical solution will be further explained below:

[0008] In one embodiment, when the drive rod engages with the locking hole, the drive rod rotates with the limiting sleeve.

[0009] The retaining ring is rotatably mounted within the mounting cavity. And / or, the drive rod is rotatably engaged with the retaining ring.

[0010] In one embodiment, the retaining ring is rotatably disposed within the mounting cavity. The drive rod includes a shaft and a retaining protrusion disposed at the insertion end of the shaft. The mating hole includes a shaft hole that rotatably engages with the shaft body and a clearance groove disposed on the side wall of the shaft hole. The retaining protrusion passes through the clearance groove and engages with the retaining hole.

[0011] In one embodiment, the locking protrusion includes at least two protrusions, which are spaced apart circumferentially along the shaft, and the clearance groove corresponds to each locking protrusion.

[0012] And / or, the card protrusion is elastic.

[0013] And / or, the retaining ring is elastic, allowing the retaining hole to have a contracted state and an expanded state. When the retaining hole is in the expanded state, the retaining protrusion can pass through the retaining hole. When the retaining protrusion engages with the retaining hole, the retaining hole is in the contracted state, and the shaft passes through the retaining hole so that the retaining protrusion is engaged at the outer edge of the retaining hole.

[0014] In one embodiment, the sidewall of the retaining ring has a slit that communicates with the retaining hole.

[0015] And / or, at least one of the card protrusion and the card ring is provided with a first guide surface for guiding the card protrusion into the card hole.

[0016] In one embodiment, at least one of the latching protrusion and the latching ring is provided with a second guide surface for guiding the latching protrusion out of the latching hole. The first guide surface and the second guide surface are spaced apart along the depth direction of the mounting cavity.

[0017] In one embodiment, the card protrusion is provided with a first guide surface and a second guide surface so that the card protrusion is in the shape of a pointed tip.

[0018] And / or, the retaining ring includes a ring body with a through hole and a protruding ring with a retaining hole, the protruding ring protruding into the through hole and fixed to the ring body. The protruding ring has a first guide surface and a second guide surface.

[0019] In one embodiment, a limiting protrusion is provided on one side of the outer wall of the limiting bushing and a limiting groove is provided on the other side of the mounting cavity, which is nested and engaged with the limiting protrusion.

[0020] In one embodiment, the limiting bushing is bonded and fixed to the massage head.

[0021] Alternatively, the limiting bushing and the massage head can be injection molded in two stages.

[0022] According to a second aspect of the present disclosure, a massage device is also provided, including a housing assembly, a drive mechanism, and a massage head assembly as described in any of the above embodiments. The drive mechanism includes a drive rod movably disposed on the housing assembly. The drive rod is capable of inserting into a mating hole and engaging with a snap-fit ​​hole.

[0023] The technical solution will be further explained below:

[0024] In one embodiment, the massage head assembly includes at least two, and at least two of the massage head assemblies have different massage heads.

[0025] The technical solutions provided by the embodiments of this disclosure have at least the following beneficial effects:

[0026] During use, the limiting sleeve is fixedly connected to the massage head, and the retaining ring is confined within the mounting cavity. This ensures the retaining ring is reliably held within the massage head, guaranteeing a reliable connection between the drive rod and the retaining ring, facilitating the movement of the massage head by the drive rod. When disassembling the massage head assembly, pulling it outward causes the drive rod to pull the retaining ring, which is then held in place by the limiting sleeve. When the pulling force reaches a set value, the drive rod separates from the retaining hole, allowing the massage head assembly to be detached from the drive rod. When installing the massage head assembly, the drive rod is inserted into the massage head through the mating hole and abuts against the retaining hole. Continuing to push the massage head, when the pushing force reaches a set value, at least a portion of the drive rod inserts into the retaining hole and engages with it, reliably installing the massage head assembly onto the drive rod. This allows for quick assembly and disassembly of the massage head assembly from the drive rod of the massage device, improving the efficiency of massage head assembly and disassembly.

[0027] 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

[0028] 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.

[0029] 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.

[0030] Figure 1 This is a schematic diagram of the structure of a massage device shown in one embodiment.

[0031] Figure 2 This is a schematic diagram of the assembly of the drive rod and massage head assembly in one embodiment.

[0032] Figure 3 for Figure 2 The diagram shows a partial exploded view of the drive rod and massage head assembly.

[0033] Figure 4 for Figure 3 A partially enlarged schematic diagram of the drive rod shown.

[0034] Figure 5 for Figure 3 The diagram shows the structure of the massage head assembly.

[0035] Figure 6 for Figure 5 The diagram shows a half-section of the massage head assembly cut along the depth of the receiving cavity.

[0036] Figure 7 for Figure 5 The diagram shown is an exploded view of the massage head assembly.

[0037] Figure 8 for Figure 7 The diagram shows the structure of the retaining ring.

[0038] Figure 9 for Figure 8 The diagram shows the structure of the retaining ring from another perspective.

[0039] Explanation of reference numerals in the attached figures:

[0040] 10. Massage device; 11. First guide surface; 12. Second guide surface; 100. Housing assembly; 200. Drive mechanism; 210. Drive rod; 211. Shaft; 212. Snap protrusion; 300. Massage head assembly; 310. Massage head; 311. Receiving cavity; 312. Mounting port; 313. Limiting protrusion; 320. Limiting bushing; 321. Mating hole; 302. Shaft hole; 303. Clearance groove; 322. Limiting groove; 330. Snap ring; 301. Snap hole; 304. Slit; 305. Through hole; 331. Ring body; 332. convex ring. Detailed Implementation

[0041] 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.

[0042] 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.

[0043] 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.

[0044] 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.

[0045] In related technologies, the massage heads of most massage devices are typically fixed to the drive rod with bolts. This requires the use of tools such as wrenches and screwdrivers to disassemble the massage heads, which is detrimental to improving the efficiency of massage head replacement.

[0046] Based on this, the present disclosure provides a massage head assembly that can be quickly attached and detached from the drive rod of a massage device, which helps to improve the replacement efficiency of the massage head assembly.

[0047] To better understand the massage head assembly of this disclosure, the following description uses a massage device in which the massage head assembly is applied.

[0048] like Figures 1 to 6 As shown, in some embodiments, a massage device 10 is provided, including a housing assembly 100, a drive mechanism 200, and a massage head assembly 300. The drive mechanism 200 includes a drive rod 210 movably disposed in the housing assembly 100. The massage head assembly 300 includes a massage head 310, a limiting sleeve 320, and a retaining ring 330. The massage head 310 has a mounting cavity and a mounting port 312 communicating with the mounting cavity. The retaining ring 330 is disposed in the mounting cavity. The retaining ring 330 has a retaining hole 301 for engaging with the drive rod 210. The limiting sleeve 320 has a mating hole 321 for inserting into the drive rod 210. The limiting sleeve 320 is inserted into the mounting cavity through the mounting port 312 and fixedly connected to the massage head 310 to restrict the retaining ring 330 within the mounting cavity. The drive rod 210 can be inserted into the mating hole 321 and engaged with the retaining hole 301.

[0049] During use, the limiting sleeve 320 is fixedly connected to the massage head 310, and the retaining ring 330 is confined within the mounting cavity. This ensures that the retaining ring 330 is reliably confined within the massage head 310, making the connection between the drive rod 210 and the retaining ring 330 reliable and facilitating the movement of the massage head 310 by the drive rod 210. When it is necessary to disassemble the massage head assembly 300, pulling the massage head assembly 300 outward causes the drive rod 210 to pull the retaining ring 330, which is then held in place by the limiting sleeve 320. When the pulling force reaches a set value, the drive rod 210 separates from the retaining hole 301, allowing the massage head assembly 300 to be detached from the drive rod 210. When it is necessary to install the massage head assembly 300, the drive rod 210 is inserted into the massage head 310 through the mating hole 321 and abuts against the retaining hole 301. Continue pushing the massage head 310 with force, and when the pushing force reaches the set value, at least a portion of the drive rod 210 inserts into the locking hole 301 and engages with it, so that the massage head assembly 300 is reliably installed on the drive rod 210. In this way, the massage head assembly 300 can be quickly attached to and detached from the drive rod 210 of the massage device 10, which helps to improve the efficiency of assembly and disassembly of the massage head 310.

[0050] In addition, the massage head assembly 300 and the drive rod 210 can be disassembled and assembled without the need for tools such as wrenches, which is convenient and helps to improve the user experience of the massage device 10.

[0051] It should be noted that the drive mechanism 200 can be implemented in various ways, including but not limited to a rotation mechanism, a telescopic mechanism, a swing mechanism, etc., as long as it can drive the massage head 310 to rotate, telescopic, or swing through the drive rod 210.

[0052] In some embodiments, the massage head assembly 300 includes at least two, and at least two of the massage head assemblies 300 have different massage heads 310. Thus, during use of the massage device 10, the user can choose different types of massage head assemblies 300 according to their actual needs, thereby improving the user experience of the massage device 10.

[0053] It should be noted that "different massage heads 310" should be interpreted broadly, including but not limited to differences in the material, shape, hardness, and massage function of the massage heads 310. For example, the massage device 10 includes at least two massage head assemblies 300. One of the massage head assemblies 300 may have a silicone massage head 310, while the other may have a plastic massage head 310, providing users with massage heads 310 of different hardness.

[0054] In some embodiments, when the drive rod 210 is engaged with the locking hole 301, the drive rod 210 is rotatably engaged with the limiting bushing 320. The retaining ring 330 is rotatably disposed within the mounting cavity. Thus, the massage head assembly 300 can rotate relative to the drive rod 210, allowing the massage head 310 to roll relative to the user's body during the movement of the massage head assembly 300 driven by the drive rod 210. This reduces friction, prevents damage to the user's skin from rough abrasion, and allows for better massage of the user's muscles, improving the user experience and massage effect of the massage device 10.

[0055] In some embodiments, when the drive rod 210 is engaged with the locking hole 301, the drive rod 210 is also engaged with the limiting sleeve 320. Furthermore, the drive rod 210 is also engaged with the retaining ring 330. Thus, in this embodiment, the massage head assembly 300 can also rotate relative to the drive rod 210. This allows the massage head 310 to roll relative to the user's body during the movement of the massage head assembly 300 driven by the drive rod 210, reducing friction and preventing damage from abrasion of the user's skin. This allows for better massage of the user's muscles, improving the user experience and massage effect of the massage device 10.

[0056] It should be noted that the specific shape of the mating hole 321 is not limited, as long as it meets the above-mentioned usage requirements. For example, the mating hole 321 can be a cylindrical hole, a polygonal hole, an irregularly shaped hole, etc.

[0057] like Figures 4 to 6As shown, in some embodiments, the retaining ring 330 is rotatably disposed within the mounting cavity. The drive rod 210 includes a shaft 211 and a retaining protrusion 212 disposed at the insertion end of the shaft 211. The mating hole 321 includes a shaft hole 302 that rotatably engages with the shaft 211 and a relief groove 303 disposed on the side wall of the shaft hole 302. The retaining protrusion 212 passes through the relief groove 303 and engages with the retaining hole 301. Thus, when it is necessary to disassemble the massage head assembly 300, by pulling the massage head assembly 300 outward, the retaining protrusion 212 pulls the retaining ring 330, which is then held in place by the limiting bushing 320. Furthermore, when the pulling force reaches a set value, the retaining protrusion 212 separates from the retaining hole 301. Then, the massage head 310 is rotated so that the locking protrusion 212 enters the relief groove 303, allowing the locking protrusion 212 to separate from the limiting sleeve 320 as the shaft 211 separates from the shaft hole 302, thus separating the massage head assembly 300 from the drive rod 210. When the massage head assembly 300 needs to be installed, the drive rod 210 is inserted into the shaft hole 302 via the shaft 211, and the locking protrusion 212 is inserted into the relief groove 303, allowing the drive rod 210 to be inserted into the massage head 310. When the locking protrusion 212 abuts against the locking hole 301, the massage head 310 is pushed further. When the pushing force reaches the set value, the locking protrusion 212 inserts into the locking hole 301 and engages with the locking hole 301, allowing the massage head assembly 300 to be reliably installed on the drive rod 210. Therefore, the massage head assembly 300 and the drive rod 210 are easy and quick to assemble and disassemble, improving the user experience of the massage device 10.

[0058] Furthermore, the rotational engagement between the shaft 211 and the shaft hole 302 allows the massage head assembly 300 to rotate along the axis of the shaft 211, which avoids eccentric movement, reduces wear, and enhances the durability of the massage head assembly 300.

[0059] In some embodiments, the locking protrusion 212 is elastic. Thus, when the massage head assembly 300 needs to be disassembled, pulling the massage head assembly 300 outward causes the locking protrusion 212 to pull the retaining ring 330, which is then held in place by the limiting sleeve 320. Furthermore, when the pulling force reaches a set value, the locking protrusion 212 undergoes elastic deformation and separates from the locking hole 301. Then, rotating the massage head 310 causes the locking protrusion 212 to enter the relief groove 303, allowing the locking protrusion 212 to leave the limiting sleeve 320 as the shaft 211 separates from the shaft hole 302, thus separating the massage head assembly 300 from the drive rod 210. When the massage head assembly 300 needs to be installed, the drive rod 210 is inserted into the shaft hole 302 via the shaft 211, and the locking protrusion 212 is inserted into the relief groove 303, allowing the drive rod 210 to be inserted into the massage head 310. The locking protrusion 212 then abuts against the locking hole 301. Continue pushing the massage head 310 with force, and when the pushing force reaches the set value, the locking protrusion 212 elastically deforms and inserts into the locking hole 301. After the locking protrusion 212 further penetrates the locking ring 330 and passes through the locking hole 301, it returns to its initial state, preventing the locking protrusion 212 from disengaging from the locking ring 330, and allowing the locking protrusion 212 to rotate relative to the locking ring 330. Thus, the massage head assembly 300 is rotatably mounted onto the drive rod 210.

[0060] Optionally, the material of the latching protrusion 212 is an elastic material or the latching protrusion 212 is a retractable cylindrical pin.

[0061] like Figures 6 to 8As shown, in some embodiments, the retaining ring 330 is elastic, allowing the retaining hole 301 to have both a contracted and an expanded state. When the retaining hole 301 is in the expanded state, the retaining protrusion 212 can pass through the retaining hole 301. When the retaining protrusion 212 engages with the retaining hole 301, the retaining hole 301 is in the contracted state, and the shaft 211 passes through the retaining hole 301, so that the retaining protrusion 212 is engaged at the outer edge of the retaining hole 301. Thus, when it is necessary to disassemble the massage head assembly 300, by pulling the massage head assembly 300 outward, the retaining protrusion 212 pulls the retaining ring 330, which is then held in place by the limiting bushing 320. Furthermore, as the pulling force increases, the retaining ring 330 undergoes elastic deformation, causing the retaining hole 301 to be in the expanded state, making it easy to separate from the retaining protrusion 212. Then, the massage head 310 is rotated so that the locking protrusion 212 enters the relief groove 303, allowing the locking protrusion 212 to separate from the limiting sleeve 320 as the shaft body 211 separates from the shaft hole 302, thus separating the massage head assembly 300 from the drive rod 210. When the massage head assembly 300 needs to be installed, the drive rod 210 is inserted into the shaft hole 302 via the shaft body 211, and the locking protrusion 212 is inserted into the relief groove 303, allowing the drive rod 210 to be inserted into the massage head 310. When the locking protrusion 212 abuts against the locking hole 301, the massage head 310 is pushed further. As the pushing force continues to increase, the retaining ring 330 undergoes elastic deformation, causing the locking hole 301 to expand, making it easier for the locking protrusion 212 to be inserted into the locking hole 301. After the locking protrusion 212 continues to penetrate the locking ring 330 and passes through the locking hole 301, the locking ring 330 returns to its retracted state, which can prevent the locking protrusion 212 from disengaging from the locking ring 330. Moreover, the locking protrusion 212 can rotate relative to the locking ring 330, thereby allowing the massage head assembly 300 to be rotatably mounted on the drive rod 210.

[0062] In some embodiments, the locking protrusions 212 include at least two and are spaced apart circumferentially along the shaft 211, with the clearance grooves 303 corresponding one-to-one with the locking protrusions 212. Thus, by utilizing at least two locking protrusions 212 to limit the engagement with the retaining ring 330, the force is more evenly distributed, improving the stability of the locking engagement and enhancing the reliability of the connection between the massage head assembly 300 and the drive rod 210.

[0063] like Figures 7 to 9 As shown, in some embodiments, the sidewall of the retaining ring 330 is provided with a slit 304, which communicates with the retaining hole 301. Thus, by creating a slit 304 on the sidewall of the retaining ring 330, the elastic deformation capability of the retaining ring 330 can be improved.

[0064] like Figure 4 as well as Figure 8As shown, in some embodiments, at least one of the latching protrusion 212 and the retaining ring 330 is provided with a first guide surface 11 for guiding the latching protrusion 212 into the latching hole 301. Thus, when the drive rod 210 is inserted into the limiting sleeve 320 and presses against the retaining ring 330, the massage head 310 is continuously pushed, making it easier to guide at least one of the latching protrusion 212 and the retaining ring 330 to deform using the first guide surface 11, thereby facilitating the insertion of the latching protrusion 212 into the latching hole 301.

[0065] like Figure 4 as well as Figure 9 As shown, in some embodiments, at least one of the latching protrusion 212 and the retaining ring 330 is provided with a second guide surface 12 for guiding the latching protrusion 212 out of the latching hole 301. The first guide surface 11 and the second guide surface 12 are spaced apart along the depth direction of the mounting cavity. Thus, when the drive rod 210 needs to be separated from the retaining ring 330, pulling the massage head 310 facilitates the deformation of at least one of the latching protrusion 212 and the retaining ring 330 by utilizing the second guide surface, thereby facilitating the separation of the latching protrusion 212 from the latching hole 301.

[0066] Optionally, such as Figure 4 As shown, in some embodiments, the card protrusion 212 is provided with a first guide surface 11 and a second guide surface 12, so that the card protrusion 212 is in the shape of a pointed tip. In this way, it is convenient to use the first guide surface 11 to insert the card protrusion 212 into the card hole 301, and use the second guide surface 12 to push the card protrusion 212 out of the card hole 301.

[0067] Optionally, such as Figure 8 as well as Figure 9 As shown, in some embodiments, the retaining ring 330 includes a ring body 331 with a through hole 305 and a protruding ring 332 with a retaining hole 301. The protruding ring 332 protrudes into the through hole 305 and is fixed to the ring body 331. The protruding ring 332 has a first guide surface 11 and a second guide surface 12. This facilitates the insertion of the retaining protrusion 212 into the retaining hole 301 using the first guide surface 11, the accommodating of the retaining protrusion 212 using the through hole 305, and the restriction of the retaining protrusion 212 from detaching from the retaining ring 330 using the protruding ring 332, thus achieving a reliable connection between the massage head assembly 300 and the drive rod 210. When the massage head assembly 300 is pulled axially away from the drive rod 210, the second guide surface 12 guides the retaining protrusion 212 out of the retaining hole 301, thus separating the drive rod 210 from the massage head assembly 300.

[0068] It should be noted that the specific implementation of the first guide surface 11 and the second guide surface 12 includes at least one of the guide slope and the guide arc surface.

[0069] like Figure 6 as well as Figure 7As shown, in conjunction with any of the above embodiments, in some embodiments, a limiting protrusion 313 is provided on one side of the outer wall of the limiting bushing 320 and the side wall of the mounting cavity, and a limiting groove 322 is provided on the other side to nest and cooperate with the limiting protrusion 313. In this way, during the process of pulling or pushing the massage head assembly 300 along the depth direction of the mating hole 321, the cooperation between the limiting protrusion 313 and the limiting groove 322 makes the limiting bushing 320 and the massage head 310 reliably connected, and the two will not separate, thus reliably restricting the retaining ring 330.

[0070] Optionally, in some embodiments, the limiting bushing is bonded to the massage head. This makes implementation easy and assembly simple.

[0071] Optionally, in some embodiments, the limiting bushing and the massage head are injection molded in a secondary process. This allows the limiting bushing and the massage head to be integrally molded, reducing assembly steps and resulting in a more compact structure.

[0072] It should be noted that the "clamping protrusion" can be "part of the drive rod", that is, the "clamping protrusion" is integrally formed with "other parts of the drive rod, such as the shaft"; or it can be a separate component that can be separated from "other parts of the drive rod, such as the shaft", that is, the "clamping protrusion" can be manufactured independently and then combined with "other parts of the drive rod, such as the shaft" to form a whole.

[0073] Equivalently, "a certain body" or "a certain part" can be a portion of the corresponding "component," meaning that the "a certain body" or "a certain part" is integrally formed and manufactured with the "other parts of the component"; or it can be an independent component that can be separated from the "other parts of the component," meaning that the "a certain body" or "a certain part" can be manufactured independently and then combined with the "other parts of the component" to form a whole. The expression of "a certain body" or "a certain part" in this disclosure is merely one embodiment for ease of reading and is not intended to limit the scope of protection of this disclosure. Any solution that includes the above features and has the same function should be understood as an equivalent technical solution of this disclosure.

[0074] 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.

[0075] 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.

[0076] 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; 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.

[0077] 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.

[0078] 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 "fixedly connected" to another component, the connection can be detachable or non-detachable, such as screwing, socketing, snap-fitting, integral molding, welding, etc., which can be achieved in conventional technologies and will not be elaborated upon here.

[0079] 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.

[0080] 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 utility model 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 massage head assembly, characterized in that, Detachably connected to a drive mechanism (200), the drive mechanism (200) including a drive rod (210), the massage head assembly (300) including: The massage head (310) is provided with a mounting cavity and a mounting port (312) communicating with the mounting cavity; A retaining ring (330) is disposed within the mounting cavity, and the retaining ring (330) has a retaining hole (301) for engaging with the drive rod (210); and The limiting bushing (320) is provided with a mating hole (321) for insertion and engagement with the drive rod (210). The limiting bushing (320) is inserted into the mounting cavity through the mounting port (312) and fixedly connected to the massage head (310) to restrict the retaining ring (330) within the mounting cavity.

2. The massage head assembly (300) according to claim 1, characterized in that, When the drive rod (210) is in a limiting engagement with the locking hole (301), the drive rod (210) is in a rotating engagement with the limiting bushing (320); Furthermore, the retaining ring (330) is rotatably disposed within the mounting cavity; and / or, the drive rod (210) is rotatably engaged with the retaining ring (330).

3. The massage head assembly (300) according to claim 1, characterized in that, The retaining ring (330) is rotatably disposed in the mounting cavity; the drive rod (210) includes a shaft (211) and a retaining protrusion (212) disposed at the insertion end of the shaft (211); the mating hole (321) includes a shaft hole (302) that rotatably engages with the shaft (211) and a relief groove (303) disposed on the side wall of the shaft hole (302); the retaining protrusion (212) passes through the relief groove (303) and engages with the retaining hole (301).

4. The massage head assembly (300) according to claim 3, characterized in that, The locking protrusion (212) includes at least two and is arranged at intervals along the circumference of the shaft (211), and the relief groove (303) corresponds one-to-one with the locking protrusion (212); And / or, the card protrusion (212) is elastic; And / or, the retaining ring (330) is elastic, so that the retaining hole (301) has a contracted state and an expanded state; when the retaining hole (301) is in the expanded state, the retaining protrusion (212) can pass through the retaining hole (301); when the retaining protrusion (212) is engaged with the retaining hole (301), the retaining hole (301) is in the contracted state, and the shaft (211) passes through the retaining hole (301), so that the retaining protrusion (212) is engaged with the outer edge of the retaining hole (301).

5. The massage head assembly (300) according to claim 4, characterized in that, The side wall of the retaining ring (330) is provided with a slit (304), and the slit (304) communicates with the retaining hole (301); And / or, at least one of the card protrusion (212) and the card ring (330) is provided with a first guide surface (11) for guiding the card protrusion (212) into the card hole (301).

6. The massage head assembly (300) according to claim 5, characterized in that, At least one of the card protrusion (212) and the card ring (330) is provided with a second guide surface (12) for leading the card protrusion (212) out of the card hole (301), and the first guide surface (11) and the second guide surface (12) are spaced apart along the depth direction of the mounting cavity.

7. The massage head assembly (300) according to claim 6, characterized in that, The card protrusion (212) is provided with the first guide surface (11) and the second guide surface (12) so that the card protrusion (212) is in the shape of a protrusion tip; And / or, the retaining ring (330) includes a ring body (331) with a through hole (305) and a protruding ring (332) with the retaining hole (301). The protruding ring (332) protrudes into the through hole (305) and is fixed to the ring body (331). The protruding ring (332) is provided with a first guide surface (11) and a second guide surface (12).

8. The massage head assembly (300) according to any one of claims 1 to 7, characterized in that, The outer side wall of the limiting bushing (320) and the side wall of the mounting cavity are provided with a limiting protrusion (313) on one side and a limiting groove (322) that is nested and cooperates with the limiting protrusion (313) on the other side.

9. The massage head assembly (300) according to claim 8, characterized in that, The limiting bushing (320) is bonded and fixed to the massage head (310); Alternatively, the limiting bushing (320) and the massage head (310) can be injection molded in a secondary process.

10. A massage device, characterized in that, The device includes a housing assembly (100), a drive mechanism (200), and a massage head assembly (300) according to any one of claims 1 to 9. The drive mechanism (200) includes a drive rod (210) movably disposed on the housing assembly (100), and the drive rod (210) is capable of being inserted into the mating hole (321) and engaging with the locking hole (301).

11. The massage device (10) according to claim 10, characterized in that, The massage head assembly (300) includes at least two, and at least two of the massage head assemblies (300) have different massage heads (310).

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