Waist massager core and waist massager

Abstract

The application discloses a waist massage machine core and a waist massage instrument. The waist massage machine core comprises a machine core shell, a driving device, a first massage group and a second massage group. The first massage group comprises a plurality of first massage heads which are arranged at intervals along the length direction of the machine core shell. In the length direction of the machine core shell, the height of the plurality of first massage heads gradually decreases in the direction from the driving device to the first massage group. The second massage group comprises a plurality of second massage heads which are arranged at intervals along the length direction of the machine core shell. In the length direction of the machine core shell, the height of the plurality of second massage heads gradually decreases in the direction from the driving device to the second massage group. The waist massage machine core and the waist massage instrument provided by the application can massage the erector spinae on the left and right sides of the waist spine, increase the massage depth of the massage head closest to the waist spine on the waist muscle, and improve the massage effect.

Description

Technical Field

[0001] This invention relates to the field of massage technology, and more particularly to a waist massage mechanism and a waist massager. Background Technology

[0002] With the continuous development of the economy, people's pace of life is accelerating and work pressure is increasing. As a result, more and more people often stand or sit for long periods of time, which can lead to lumbar damage and herniated discs. Therefore, various lumbar massage devices have appeared on the market. These devices mainly use massage heads in their massage mechanisms. When the user puts the device on their lower back, the massage heads use a pounding motion to massage the user's lower back.

[0003] However, the massage heads in the massage mechanisms of related technologies are usually designed to massage the lumbar muscle groups on both sides of the lumbar spine, which cannot meet the user's need for massaging the erector spinae muscles on both sides of the lumbar spine. Moreover, the massage effect on the waist is not prominent enough and the massage effect is not good. Summary of the Invention

[0004] This invention discloses a waist massage mechanism and a waist massager, which can massage the erector spinae muscles on both sides of the lumbar spine while increasing the massage depth of the massage head closest to the lumbar spine, thereby enhancing the massage effect.

[0005] To achieve the above objectives, in a first aspect, the present invention discloses a waist massage mechanism, the waist massage mechanism comprising:

[0006] Movement housing;

[0007] A drive unit is mounted on the movement housing;

[0008] A first massage group, connected to the driving device, and located on one side of the driving device along the length of the housing, includes a plurality of first massage heads spaced apart along the length of the housing. Each first massage head performs a massage motion under the driving action of the driving device, and the protrusion height of the plurality of first massage heads relative to the housing gradually decreases in the direction from the driving device to the first massage group along the length of the housing.

[0009] The second massage group is connected to the drive device and is located on the other side of the drive device along the length of the housing. The second massage group includes a plurality of second massage heads spaced apart along the length of the housing. Each second massage head performs a massage motion under the drive of the drive device. In the direction from the drive device to the second massage group along the length of the housing, the height of the plurality of second massage heads protruding relative to the housing gradually decreases.

[0010] As an optional implementation, in an embodiment of the first aspect of the invention, in the length direction of the movement housing, two first massage heads form a pair of first massage heads, and two of the first massage heads in the pair of first massage heads move closer to or further away from each other along the length direction of the movement housing under the driving action of the driving device; and / or,

[0011] Along the length of the housing, two second massage heads form a pair of second massage heads, and the two second massage heads in the pair move closer to or further away from each other along the length of the housing under the driving action of the driving device.

[0012] As an optional implementation, in an embodiment of the first aspect of the present invention, the first massage head closest to the driving device among the plurality of first massage heads is a first inner massage head, and the second massage head closest to the driving device among the plurality of second massage heads is a second inner massage head. As the first inner massage head and the second inner massage head move closer to or further away from each other, the first inner massage head and the second inner massage head protrude at the same height relative to the core housing.

[0013] As an optional implementation, in an embodiment of the first aspect of the present invention, the first massage head closest to the driving device among the plurality of first massage heads is a first inner massage head, and the second massage head closest to the driving device among the plurality of second massage heads is a second inner massage head;

[0014] The first inner massage head includes a first massage portion and a first connecting portion. The first connecting portion is disposed on the surface of the first massage portion facing the core housing. The first connecting portion is rotatably connected to the driving device via a first rotating shaft. The axial direction of the first rotating shaft is parallel to the width direction of the core housing. The second inner massage head includes a second massage portion and a second connecting portion. The second connecting portion is disposed on the surface of the second massage portion facing the core housing. The second connecting portion is rotatably connected to the driving device via a second rotating shaft. The axial directions of the second rotating shaft and the first rotating shaft are parallel.

[0015] When the first inner massage head and the second inner massage head approach each other, the first massage part and the second massage part rotate around the first rotating axis and the second rotating axis respectively under the massage reaction force, so that the first massage part and the second massage part move away from each other. When the first inner massage head and the second inner massage head move away from each other, the first massage part and the second massage part rotate around the first rotating axis and the second rotating axis respectively under the massage reaction force, so that the first massage part and the second massage part move closer to each other.

[0016] As an optional implementation, in an embodiment of the first aspect of the present invention, at least one of the first massage heads is connected to a first rotating shaft extending along the thickness direction of the core housing at its middle portion. The first rotating shaft is connected to the driving device. When at least one of the first massage heads moves along the length direction of the core housing, at least one of the first massage heads reciprocates around the first rotating shaft at both ends in the width direction of the core housing; and / or,

[0017] At least one of the second massage heads is connected to a second rotating shaft extending along the thickness direction of the core housing at its middle portion. The second rotating shaft is connected to the drive device. When at least one of the second massage heads moves along the length direction of the core housing, the at least one of the second massage heads reciprocates around the second rotating shaft at both ends in the width direction of the core housing.

[0018] As an optional implementation, in an embodiment of the first aspect of the present invention, the minimum distance between any two adjacent first massage heads in the length direction of the mechanism housing is greater than 10 mm, the minimum distance between any two adjacent second massage heads in the length direction of the mechanism housing is greater than 10 mm, and the minimum distance between adjacent first massage heads and second massage heads in the length direction of the mechanism housing is greater than 10 mm.

[0019] As an optional implementation, in an embodiment of the first aspect of the present invention, the edges of any two adjacent first massage heads that are close to each other are covered with flexible material, the edges of any two adjacent second massage heads that are close to each other are covered with flexible material, and the edges of adjacent first massage heads and second massage heads that are close to each other are covered with flexible material.

[0020] As an optional implementation, in an embodiment of the first aspect of the present invention, the first massage group includes two first massage heads spaced apart along the length direction of the core housing, and the second massage group includes two second massage heads spaced apart along the length direction of the core housing. The first massage head farthest from the driving device among the two first massage heads is the first outer massage head, and the second massage head farthest from the driving device among the two second massage heads is the second outer massage head.

[0021] The first outer massage head and the second outer massage head extend along the width direction of the core housing, and the skin-proximal surfaces of the first outer massage head and the second outer massage head respectively include two spaced-apart protrusions and a recess located between the two protrusions. The two protrusions are used to contact the massage area during massage.

[0022] As an optional implementation, in an embodiment of the first aspect of the present invention, both the first massage head and the second massage head are elongated strips extending along the width direction of the core housing, and along the width direction of the core housing, both the first massage head and the second massage head are arc-shaped, with the middle part convex toward the massage area and the sides curved away from the massage area, so as to fit against the waist of the human body.

[0023] As an optional implementation, in an embodiment of the first aspect of the present invention, at least one first massage head and / or at least one second massage head has one or more massage protrusions on their skin-proximal surfaces.

[0024] When at least one of the first massage heads and / or at least one of the second massage heads has a plurality of massage protrusions on its skin-like surface, the plurality of massage protrusions are spaced apart along the width direction of the mechanism housing. In a second aspect, the present invention discloses a waist massager, the waist massager comprising a wearing component and a waist massage mechanism as described in the first aspect above, the waist massage mechanism being connected to the wearing component, the wearing component being used to wear the waist massage mechanism onto the waist of a human body.

[0025] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0026] The lumbar massage mechanism and lumbar massager provided in this invention include a first massage group and a second massage group located on both sides of the spine. The first and second massage groups can respectively massage the erector spinae muscles on both sides of the lumbar spine to meet the user's lumbar massage needs. Furthermore, since the muscles closer to the spine on both sides of the lumbar region are harder than those farther away (e.g., the erector spinae muscles on both sides of the spine), requiring a deeper massage depth, the protrusion height of multiple first massage heads relative to the mechanism housing gradually decreases in the direction from the drive device to the first massage group along the length of the mechanism housing. Similarly, the protrusion height of multiple second massage heads relative to the mechanism housing gradually decreases in the direction from the drive device to the second massage group along the length of the mechanism housing. That is, the closer the first and second massage heads are to the spine, the higher their protrusion height relative to the mechanism housing. This allows the first and second massage heads closer to the spine to make deeper contact with the muscles on both sides of the lumbar region near the spine, thereby providing a stronger massage and enhancing the massage effect. Attached Figure Description

[0027] To more clearly illustrate the technical solutions in the embodiments of the present invention, the accompanying drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0028] Figure 1 This is a schematic diagram of the first structure of the waist massager disclosed in the embodiments of the present invention;

[0029] Figure 2 This is a schematic diagram of the second structure of the waist massager disclosed in the embodiments of the present invention;

[0030] Figure 3 This is a schematic diagram of the structure of the massage mechanism disclosed in an embodiment of the present invention;

[0031] Figure 4 This is a front view of the massage mechanism disclosed in an embodiment of the present invention;

[0032] Figure 5 yes Figure 4 A magnified view of point M in the image;

[0033] Figure 6 yes Figure 4 A magnified view of point N in the image;

[0034] Figure 7 This is a schematic diagram of a first structure of the first massage head / second massage head disclosed in an embodiment of the present invention;

[0035] Figure 8 This is a schematic diagram of a second structure of the first massage head / second massage head disclosed in an embodiment of the present invention;

[0036] Figure 9 This is a first exploded structural diagram of the massage mechanism disclosed in the embodiments of the present invention;

[0037] Figure 10 yes Figure 9 An exploded structural diagram of the massage mechanism from another perspective;

[0038] Figure 11 This is a top view of the massage mechanism disclosed in an embodiment of the present invention;

[0039] Figure 12 This is a top view of the massage mechanism when the first massage head rotates a certain angle around the first rotating axis and the second massage head rotates a certain angle around the second rotating axis, as disclosed in the embodiments of the present invention.

[0040] Figure 13 This is a second exploded structural diagram of the massage mechanism disclosed in an embodiment of the present invention.

[0041] Explanation of main figure symbols

[0042] 100-Waist Massager;

[0043] 10-Waist massage mechanism; 11-Mechanism housing; 111-First groove group; 1111-First strip groove; 112-Second groove group; 1121-Second strip groove; 12-Drive device; 121-Drive motor; 1211-Worm gear; 122-First transmission gear group; 1221-First output gear; 1222-First eccentric connection part; 1223-First swing arm; 1224-First connecting shaft; 123-Second transmission gear group; 1231-Second output gear; 1232-Second eccentric connection part; 1233-Second swing arm; 1234-Second connecting shaft; 124-First reduction gear group; 1241-First sub-reduction gear Wheel; 125-Second reduction gear set; 1251-Second sub-reduction gear; 13-First massage group; 131-First massage head; 131a-First inner massage head; 131b-First outer massage head; 1311-Massage protrusion; 1312-First massage part; 1313-First connecting part; 1314-Protrusion; 1315-Concave part; 1316-First rotating shaft; 14-Second massage group; 141-Second massage head; 141a-Second inner massage head; 141b-Second outer massage head; 1411-Second massage part; 1412-Second connecting part; 1413-Second rotating shaft; 15-First rotating shaft; 16-Second rotating shaft;

[0044] 20 - Wearing component; 21 - First sub-wearing component; 22 - Second sub-wearing component;

[0045] f1 - First direction; f2 - Second direction; f3 - Third direction; f4 - Length direction; f5 - Width direction; f6 - Thickness direction. Detailed Implementation

[0046] To make the objectives, technical solutions, and advantages of this application clearer, the following detailed description is provided in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and not intended to limit the scope of this application.

[0047] 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 application belongs. The terminology used herein in the specification of this application is for the purpose of describing particular embodiments only and is not intended to be limiting of this application.

[0048] It is understood that the terms "first," "second," etc., used herein may be used to describe various elements, but these elements are not limited by these terms. These terms are only used to distinguish one element from another. For example, without departing from the scope of this application, a first massage group may be referred to as a second massage group, and similarly, a second massage group may be referred to as a first massage group. Both the first massage group and the second massage group are massage groups, but they are not the same massage group.

[0049] It is understood that the term "connection" in the following embodiments should be understood as "electrical connection," "communication connection," etc., if the connected circuits, modules, units, etc., have electrical signal or data transmission with each other.

[0050] When used herein, the singular forms of “a,” “an,” and “the” may also include the plural forms unless the context clearly indicates otherwise. It should also be understood that terms such as “comprising / including” or “having” specify the presence of the stated features, wholes, steps, operations, components, parts, or combinations thereof, but do not preclude the possibility of the presence or addition of one or more other features, wholes, steps, operations, components, parts, or combinations thereof. The term “and / or” as used in this specification is merely a description of the relationship between related objects, indicating that three relationships may exist. For example, A and / or B can represent: A alone, A and B simultaneously, and B alone. That is, the term “and / or” as used in this specification includes any and all combinations of the related listed items.

[0051] It is well known that prolonged sitting can easily cause the lumbar muscles to be in a state of high tension for a long time, damaging their health and leading to lumbar muscle strain. However, manual lumbar massage is not only time-consuming and laborious, but also difficult to maintain for extended periods, and the massage effect is often unsatisfactory due to factors such as technique and strength control. To meet market demand, electric massagers for lumbar massage (i.e., lumbar massagers) have emerged. These massagers mainly use massage heads on their massage mechanism, allowing the user to receive a lumbar massage through the percussion of the massage heads when the massager is placed on the lower back.

[0052] However, the massage heads in related technologies usually massage the lumbar muscle groups on both sides of the lumbar spine, which cannot meet the user's need for massaging the erector spinae muscles on both sides of the lumbar spine. Furthermore, they cannot specifically massage the lumbar region, resulting in unsatisfactory and imprecise massage effects, poor massage targeting, and an inability to coordinate massage of different parts of the lumbar region, leading to poor massage results.

[0053] In view of this, this application provides a waist massage mechanism. When applied to a waist massager and worn on the waist, it can massage the erector spinae muscles on both sides of the lumbar spine while increasing the massage depth of the massage head closest to the lumbar spine. Thus, the massage depth of the massage head closest to the lumbar spine can be different from that of the other massage heads farther away from the lumbar spine, thereby enabling coordinated and targeted massage of different massage areas of the waist and improving the massage effect.

[0054] The technical solution of this application will be further described in detail below with reference to the accompanying drawings.

[0055] Please see Figure 1 , Figure 1 This is a structural schematic diagram from one side view of one implementation of the waist massager in this application. This application discloses a waist massager 100, which includes a waist massage mechanism 10 and a wearing component 20. The waist massage mechanism 10 is connected to the wearing component 20 so that the wearing component 20 can be used to wear the waist massage mechanism 10 on the waist of a person. This allows the user to free their hands while the waist massage mechanism 10 massages the waist, improving the convenience and comfort of using the waist massager 100.

[0056] The lumbar massager 100 has a first direction f1, a second direction f2, and a third direction f3. When the lumbar massager 100 is in a flattened state, for example... Figure 1In the illustrated state, the first direction f1, the second direction f2, and the third direction f3 of the lumbar massager 100 are perpendicular to each other. When the lumbar massager 100 is worn on the waist, the first direction f1 of the lumbar massager 100 extends around the waist, the second direction f2 extends along the spine, and the third direction f3 is configured to point from the lumbar massager 100 towards the waist.

[0057] An example, such as Figure 1 As shown, the wearing component 20 can be an integrally formed strip structure. The wearing component 20 extends along the first direction f1 of the waist massager 100. The waist massage mechanism 10 is approximately located at the middle position of the wearing component 20 in the first direction f1 of the waist massager 100. The waist massage mechanism 10 can be located inside or outside the wearing component 20. The two ends of the wearing component 20 in the first direction f1 of the waist massager 100 can be connected by Velcro, D-rings, etc., to fix it to the waist of the human body.

[0058] Another example, such as Figure 2 As shown, the wearing component 20 may include a first sub-wearing component 21 and a second sub-wearing component 22 that are separately arranged. The waist massage mechanism 10 is connected between the first sub-wearing component 21 and the second sub-wearing component 22. The first sub-wearing component 21, the waist massage mechanism 10 and the second sub-wearing component 22 are arranged sequentially along the first direction f1 of the waist massager 100. The first sub-wearing component 21 and the second sub-wearing component 22 are both strip-shaped structures extending along the first direction f1 of the waist massager 100. The end of the first sub-wearing component 21 away from the waist massage mechanism 10 and the end of the second sub-wearing component 22 away from the waist massage mechanism 10 can be connected by Velcro, D-ring buckle or the like to fix it to the waist of the human body.

[0059] Please see Figures 2 to 4 , Figure 3 This is a schematic diagram of the waist massage mechanism of this application from one side view in one implementation. Figure 4 This is a structural schematic diagram from another side view of one implementation of the waist massage mechanism in this application. The waist massage mechanism 10 provided in the embodiments of this application includes a mechanism housing 11, a drive device 12, a first massage group 13, and a second massage group 14.

[0060] In this application, the mechanism housing 11 is connected to the wearing component 20, and the mechanism housing 11 has a length direction f4, a width direction f5 and a thickness direction f6. The length direction f4 of the mechanism housing 11 extends along the first direction f1 of the waist massager 100, the width direction f5 of the mechanism housing 11 extends along the second direction f2 of the waist massager 100, and the thickness direction f6 of the mechanism housing 11 extends along the third direction f3 of the waist massager 100.

[0061] In this application, the drive device 12 is mounted on the mechanism housing 11. The drive device 12 can be located either outside or inside the mechanism housing 11. When the drive device 12 is located inside the mechanism housing 11, a portion of the drive device 12 is exposed outside the mechanism housing 11 to facilitate connection between the drive device 12 and the first massage group 13 and the second massage group 14.

[0062] In this application, the first massage group 13 is located outside the core housing 11 and connected to the drive device 12. The first massage group 13 is located on one side of the drive device 12 along the length direction f4 of the core housing 11. The first massage group 13 includes a plurality of first massage heads 131 spaced apart along the length direction f4 of the core housing 11. Each first massage head 131 performs a massage movement under the drive of the drive device 12, and the massage movement is performed in the direction from the drive device 12 to the first massage group 13 along the length direction f4 of the core housing 11 (e.g., the direction from the drive device 12 to the first massage group 13). Figure 3 On the left side of the middle, the height h1 of the protrusion of the multiple first massage heads 131 relative to the housing 11 gradually decreases.

[0063] In this application, the second massage group 14 is located outside the mechanism housing 11 and connected to the drive device 12. The second massage group 14 is located on the other side of the drive device 12 along the length direction f4 of the mechanism housing 11. The second massage group 14 includes a plurality of second massage heads 141 spaced apart along the length direction f4 of the mechanism housing 11. Each second massage head 141 performs a massage movement under the drive of the drive device 12, and the massage movement is performed in the direction from the drive device 12 to the second massage group 14 along the length direction f4 of the mechanism housing 11 (e.g., in the direction from the drive device 12 to the second massage group 14). Figure 3 On the right side of the middle, the height h2 of the protrusion of the multiple second massage heads 141 relative to the housing 11 gradually decreases.

[0064] When the lumbar massage mechanism 10 of this application is worn on the human waist, the first massage group 13 and the second massage group 14 are located on both sides of the spine, that is, one of the first massage group 13 and the second massage group 14 is located on the left side of the spine and the other is located on the right side of the spine. For example, the first massage group 13 is located on the left side of the spine and the second massage group 14 is located on the right side of the spine. This allows the multiple first massage heads 131 of the first massage group 13 and the multiple second massage heads 141 of the second massage group 14 to massage the erector spinae muscles on the left and right sides of the lumbar spine, thereby meeting the user's massage needs for the waist.

[0065] Meanwhile, the applicant's research also revealed that the muscles on both sides of the waist near the spine are harder than the muscles on both sides of the waist far from the spine (such as the erector spinae muscles on both sides of the spine). That is, the closer the muscles are to the spine, the harder they are, requiring a deeper massage depth. Therefore, this application will also gradually reduce the height h1 of the protrusion of the plurality of first massage heads 131 relative to the core housing 11 in the direction from the drive device 12 to the first massage group 13 in the length direction f4 of the core housing 11, and gradually reduce the height h2 of the protrusion of the plurality of second massage heads 141 relative to the core housing 11 in the direction from the drive device 12 to the second massage group 14 in the length direction f4 of the core housing 11. The height of the protrusion of the first massage head 131 and the second massage head 141 relative to the core housing 11 is reduced, meaning that the first massage head 131 and the second massage head 141 closer to the spine protrude more deeply into the muscles on both sides of the waist near the spine. This allows for a more powerful massage to the muscles on both sides of the waist near the spine, and the massage intensity of the first massage head 131 and the second massage head 141 closest to the lumbar spine can be different from the massage depth of the other first massage heads 131 and the second massage head 141 farther away from the lumbar spine. This allows for targeted massage of different massage areas of the waist, improving the massage effect.

[0066] It should be noted that the accompanying drawings shown in this application are merely illustrative examples of the first massage group 13 including two first massage heads 131 spaced apart along the length direction f4 of the waist massager, and the second massage group 14 including two second massage heads 141 spaced apart along the length direction f4 of the waist massager. This application does not limit the first massage group 13 to only including two first massage heads 131 spaced apart along the length direction f4 of the waist massager, nor the second massage group 14 to only including two second massage heads 141 spaced apart along the length direction f4 of the waist massager. In other implementations of this application, the first massage group 13 may also include three, four, five, six, or more first massage heads 131 spaced apart along the length direction f4 of the waist massager; similarly, the second massage group 14 may also include three, four, five, six, or more second massage heads 141 spaced apart along the length direction f4 of the waist massager. This application does not specifically limit this.

[0067] Please see Figure 3 As one embodiment, along the length direction f4 of the mechanism housing 11, two first massage heads 131 form a pair of first massage heads 131. Under the driving action of the driving device 12, the two first massage heads 131 move closer to or further away from each other along the length direction f4 of the mechanism housing 11. And / or, along the length direction f4 of the mechanism housing 11, two second massage heads 141 form a pair of second massage heads 141. Under the driving action of the driving device 12, the two second massage heads 141 move closer to or further away from each other along the length direction f4 of the mechanism housing 11.

[0068] When the lumbar massage mechanism 10 of this application is worn on the human waist, one of the first massage group 13 and the second massage group 14 is located on the left side of the spine and the other is located on the right side of the spine. For example, the first massage group 13 is located on the left side of the spine and the second massage group 14 is located on the right side of the spine. The two first massage heads 131 on the left side can move closer or further apart along the length direction f4 under the driving action of the driving device 12, which can provide a pinching massage effect on the erector spinae muscles on the left side of the spine. At the same time, the two second massage heads 141 on the right side can move closer or further apart along the length direction f4 under the driving action of the driving device 12, which can provide a pinching massage effect on the erector spinae muscles on the right side of the spine. In this way, the two sets of massage heads (i.e., the first massage group 13 and the second massage group 14) can imitate the human hand to perform pinching massage on the erector spinae muscles on the left and right sides of the spine respectively. This massage action is comfortable and the massage method is more in line with the symmetrical characteristics of the erector spinae muscles and structures on the left and right sides of the human lumbar spine, which better meets the user's lumbar massage needs.

[0069] Meanwhile, since the first massage group 13 includes at least two first massage heads 131 and the second massage group 14 includes at least two second massage heads 141, the waist massage mechanism 10 in this application has at least four massage heads, which can increase the massage area and thus achieve a large-area massage of the human waist. It can simultaneously massage the muscles near the lumbar spine and the erector spinae muscles on both sides of the lumbar spine, achieving a more effective massage effect.

[0070] In this application, at least one first massage head 131 may have one or more massage protrusions 1311 protruding on the skin-proximal surface. The massage protrusions 1311 can be better embedded in the skin, making it easier for the first massage head 131 to lift the muscles during movement, thereby better gathering the muscles for pinching massage and improving the massage effect.

[0071] Optionally, when a plurality of massage protrusions 1311 are provided on the skin-proximal surface of the first massage head 131, the plurality of massage protrusions 1311 are arranged at intervals along the width direction f5 of the core housing 11, thereby further increasing the massage depth of the first massage head 131 and improving the massage effect.

[0072] Similarly, at least one second massage head 141 may also have one or more massage protrusions 1311 protruding on its skin-proximal surface. This allows the massage protrusions 1311 to be better embedded in the skin, making it easier for the second massage head 141 to lift the muscles during movement, thereby better gathering the muscles for pinching massage and improving the massage effect.

[0073] Optionally, when a plurality of massage protrusions 1311 are provided on the skin-proximal surface of the second massage head 141, the plurality of massage protrusions 1311 are arranged at intervals along the width direction f5 of the core housing 11, thereby further increasing the massage depth of the second massage head 141 and improving the massage effect.

[0074] As one embodiment, the minimum distance L1 between any two adjacent first massage heads 131 in the length direction f4 of the mechanism housing 11 is greater than 10mm, the minimum distance L2 between any two adjacent second massage heads 141 in the length direction f4 of the mechanism housing 11 is greater than 10mm, and the minimum distance L3 between adjacent first massage heads 131 and second massage heads 141 in the length direction f4 of the mechanism housing 11 is greater than 10mm.

[0075] For example, the minimum distance L1 between any two adjacent first massage heads 131 in the length direction f4 of the core housing 11 can be 10.2mm, 10.5mm, 11mm, 11.5mm, 12mm, 13mm, 14mm, 15mm, 18mm, 20mm, etc.; the minimum distance L2 between any two adjacent second massage heads 141 in the length direction f4 of the core housing 11 can be 10.2mm, 10.5mm, 11mm, 11.5mm, 12mm, 13mm, 14mm, 15mm, 18mm, 20mm, etc.; the minimum distance L3 between adjacent first massage heads 131 and second massage heads 141 in the length direction f4 of the core housing 11 can be 10.2mm, 10.5mm, 11mm, 11.5mm, 12mm, 13mm, 14mm, 15mm, 18mm, 20mm, etc. By controlling the minimum distance between any two adjacent massage heads to be greater than 10mm, it is possible to avoid pinching the skin, thereby preventing discomfort or pain, or even injury, and thus helping to improve the comfort of massage.

[0076] As one embodiment, the edges of any two adjacent first massage heads 131 that are close to each other are covered with a flexible material (not shown), the edges of any two adjacent second massage heads 141 that are close to each other are covered with a flexible material (not shown), and the edges of any two adjacent first massage heads 131 and second massage heads 141 that are close to each other are covered with a flexible material (not shown). The flexible material can be, but is not limited to, soft silicone, rubber, plastic, foam, or sponge, etc. By covering the edges of any two adjacent massage heads with a flexible material, these massage heads have an elastic cushioning and restoring effect, and can deform according to the curve of the massage position, allowing the massage heads to better conform to the human body's lines and achieve a better massage effect; at the same time, it can also avoid the massage heads pressing hard against muscles and avoid pinching flesh, reducing pain and discomfort during the massage process, thereby helping to improve the comfort of massage use.

[0077] In this application, as Figure 3 and Figure 4 As shown, for ease of description, the first massage head 131 closest to the drive device 12 among the plurality of first massage heads 131 is defined as the first inner massage head 131a, and the second massage head 141 closest to the drive device 12 among the plurality of second massage heads 141 is defined as the second inner massage head 141a. It is understood that the above definitions are for convenience of this application only and should not be used to limit the scope of protection of this application.

[0078] As one embodiment, during the process of the first inner massage head 131a and the second inner massage head 141a moving closer or further apart, the first inner massage head 131a and the second inner massage head 141a protrude at the same height relative to the core housing 11.

[0079] Since the surface of the area near the spine on both sides of the waist is relatively flat, and the first inner massage head 131a and the second inner massage head 141a massage the area near the spine on both sides of the waist respectively, by keeping the height of the first inner massage head 131a and the second inner massage head 141a protruding relative to the core housing 11 consistent, the ends of the first inner massage head 131a and the second inner massage head 141a away from the core housing 11 can always be kept in the same plane, so that the first inner massage head 131a and the second inner massage head 141a can better fit with the area near the spine on both sides of the waist, ensuring the consistency of the massage effect.

[0080] Please see Figures 4 to 6 As one embodiment, the first inner massage head 131a includes a first massage portion 1312 and a first connecting portion 1313. The first connecting portion 1313 is disposed on the surface of the first massage portion 1312 facing the core housing 11. The first connecting portion 1313 is rotatably connected to the drive device 12 via a first rotating shaft 15. The axial direction of the first rotating shaft 15 is parallel to the width direction f5 of the core housing 11. The second inner massage head 141a includes a second massage portion 1411 and a second connecting portion 1412. The second connecting portion 1412 is disposed on the surface of the second massage portion 1411 facing the core housing 11. The second connecting portion 1412 is rotatably connected to the drive device 12 via a second rotating shaft 16. The axial directions of the second rotating shaft 16 and the first rotating shaft 15 are parallel.

[0081] When the first inner massage head 131a and the second inner massage head 141a approach each other, the first massage part 1312 and the second massage part 1411 can rotate around the first rotating axis 15 and the second rotating axis 16 respectively under the massage reaction force. That is, the first massage part 1312 can swing with the first rotating axis 15 as the fulcrum under the massage reaction force, and the second massage part 1411 can swing with the second rotating axis 16 as the fulcrum under the massage reaction force, so that the first massage part 1312 and the second massage part 1411 move away from each other. When the first inner massage head 131a and the second inner massage head 141a move away from each other, the first massage part 1312 and the second massage part 1411 rotate around the first rotating axis 15 and the second rotating axis 16 respectively under the massage reaction force. That is, the first massage part 1312 can swing around the first rotating axis 15 as the fulcrum under the massage reaction force, and the second massage part 1411 can swing around the second rotating axis 16 as the fulcrum under the massage reaction force, so that the first massage part 1312 and the second massage part 1411 move closer to each other.

[0082] With the above design, when the first inner massage head 131a and the second inner massage head 141a approach each other, the first massage part 1312 can swing around the first pivot 15 as a fulcrum under the massage reaction force of the massage area, and the second massage part 1411 can swing around the second pivot 16 as a fulcrum under the massage reaction force of the massage area. This allows the massage heads of the first massage part 1312 and the second massage part 1411 to be in an open, reclining posture, thereby reducing the depth of action on the massage area and preventing the first massage part 1312 and the second massage part 1411 from causing damage to the area adjacent to the spine.

[0083] like Figure 4 and Figure 7 As shown, when the first massage group 13 includes two first massage heads 131 spaced apart along the length direction f4 of the core housing 11, and the second massage group 14 includes two second massage heads 141 spaced apart along the length direction f4 of the core housing 11, for ease of description, this application defines the first massage head 131 farthest from the drive device 12 as the first outer massage head 131b, and the second massage head 141 farthest from the drive device 12 as the second outer massage head 141b. It is understood that the above definitions are merely for the convenience of this application and should not be used to limit the scope of protection of this application.

[0084] As one example, such as Figure 4 and Figure 7 As shown, the first outer massage head 131b and the second outer massage head 141b can be extended along the width direction f5 of the housing 11, and the skin-proximal surfaces of the first outer massage head 131b and the second outer massage head 141b respectively include two spaced protrusions 1314 and a recess 1315 located between the two protrusions 1314. The two protrusions 1314 are used to contact the massage area during massage.

[0085] Since the first lateral massage head 131b and the second lateral massage head 141b in this application massage the erector spinae muscles on both sides of the waist away from the spine, and since the erector spinae muscles of the waist are arranged vertically, the skin-proximal surfaces of the first lateral massage head 131b and the second lateral massage head 141b are configured with two spaced-apart protrusions 1314 and a concave portion 1315 located between the two protrusions 1314. The two protrusions 1314 come into contact with the massage area (i.e., the erector spinae muscles) during the massage, while the concave portion 1315 does not come into contact with the massage area (i.e., the erector spinae muscles) during the massage. In this way, the two protrusions 1314 can better correspond to the deformation of the erector spinae muscles, avoiding the situation where the erector spinae muscles are pushed as a whole during the movement of the first lateral massage head 131b and the second lateral massage head 141b, resulting in an indistinct massage sensation, thus improving the massage effect on the erector spinae muscles of the waist.

[0086] As another embodiment, such as Figure 4 and Figure 8 As shown, the first massage head 131 and the second massage head 141 (such as the aforementioned first inner massage head 131a, second inner massage head 141a, first outer massage head 131b and second outer massage head 141b, etc.) can both be elongated strips extending along the width direction f5 of the core housing 11. Along the width direction f5 of the core housing 11, the first massage head 131 and the second massage head 141 are both arc-shaped, with the middle part convex towards the massage area and the sides curved away from the massage area, so as to fit against the waist of the human body.

[0087] Because the sides of the human waist are concave inwards, the massage head is designed to be more convex in the middle so that the middle part of the massage head can fit the shape of the middle part of the human waist. The outward curves on both sides can make way for the muscles located above and below the waist, so that the massage head can better fit the massage area, and has a better fit with the human waist. This conforms to ergonomic design and can better fit the curvature of the human waist, improving the user's comfort.

[0088] Please see Figures 9 to 12 , Figure 11 It is shown that the two ends of the first massage head do not reciprocate around the first rotation axis, and the two ends of the second massage head also do not reciprocate around the second rotation axis. Figure 12 The diagram shows that the two ends of one of the first massage heads reciprocate around a first rotation axis, and the two ends of one of the second massage heads also reciprocate around a second rotation axis.

[0089] In one embodiment, at least one first massage head 131 is connected to a first rotating shaft 1316 extending along the thickness direction f6 of the core housing 11 at its middle portion. This first rotating shaft 1316 is connected to the drive device 12. When the at least one first massage head 131 moves along the length direction f4 of the core housing 11, both ends of the at least one first massage head 131 in the width direction f5 of the core housing 11 reciprocate around the first rotating shaft 1316. This allows at least one first massage head 131 to reciprocate linearly along the length direction f4 of the core housing 11 while simultaneously allowing both ends of the at least one first massage head 131 in the width direction f5 of the core housing 11 to reciprocate around the first rotating shaft 1316 located at the middle of the first massage head 131. This enriches the massage modes of the first massage group 13, thereby enhancing the richness of the massage sensation and improving the massage effect.

[0090] Similarly, at least one second massage head 141 is connected to a second rotating shaft 1413 extending along the thickness direction f6 of the core housing 11 at its middle portion. The second rotating shaft 1413 is connected to the drive device 12. When at least one second massage head 141 moves along the length direction f4 of the core housing 11, both ends of the at least one second massage head 141 in the width direction f5 of the core housing 11 reciprocate around the second rotating shaft 1413. This allows at least one second massage head 141 to perform linear reciprocating motion while simultaneously allowing both ends of the at least one second massage head 141 in the thickness direction f6 of the core housing 11 to reciprocate around the second rotating shaft 1413 located at the middle of the second massage head 141. This enriches the massage modes of the second massage group 14, thereby enhancing the richness of the massage sensation and improving the massage effect.

[0091] In this application, in order to enable the drive device 12 to drive the massage head to move linearly along the length direction f4 of the core housing 11, so as to make adjacent massage heads move closer or further apart along the length direction f4 of the core housing 11, the drive device 12 may include a mechanism for outputting linear motion such as a hydraulic cylinder or a pneumatic cylinder, or it may include a motor for outputting rotary motion. When the drive device 12 includes a motor, it typically also includes gears and limiting mechanisms (such as limiting grooves) to convert the rotary motion output by the motor into linear motion through the cooperation of the gears and limiting mechanisms; or, the drive device 12 may also include a rack to convert the rotary motion output by the motor into linear motion.

[0092] Please see Figure 13In one embodiment, the mechanism housing 11 is provided with a first groove group 111 and a second groove group 112, wherein the first groove group 111 and the second groove group 112 are respectively located on both sides of the drive device 12 in the length direction f4 of the mechanism housing 11. The first groove group 111 includes a plurality of first strip grooves 1111 spaced apart along the length direction f4 of the mechanism housing 11, each of the first strip grooves 1111 extending along the length direction f4 of the mechanism housing 11. The second groove group 112 includes a plurality of second strip grooves 1121 spaced apart along the length direction f4 of the mechanism housing 11, each of the second strip grooves 1121 extending along the length direction f4 of the waist massager.

[0093] The drive device 12 in this application may include a drive motor 121, a first transmission gear set 122, and a second transmission gear set 123.

[0094] The drive motor 121 in this application is mounted on the mechanism housing 11. The drive motor 121 can be located outside or inside the mechanism housing 11. The drive motor 121 has a worm gear 1211 located inside the mechanism housing 11. The worm gear 1211 extends along the width direction f5 of the mechanism housing 11. The first massage group 13 and the second massage group 14 are respectively located on both sides of the worm gear 1211 along the length direction f4 of the mechanism housing 11.

[0095] The first transmission gear set 122 in this application is located inside the mechanism housing 11 and on one side of the worm gear 1211 along the length direction f4 of the mechanism housing 11. The first transmission gear set 122 is meshed with the worm gear 1211. The first transmission gear set 122 includes a plurality of meshing first output gears 1221. Each first output gear 1221 has a first eccentric connecting portion 1222 on its end face, which is eccentrically positioned to the center of the first output gear 1221. A first eccentric connecting portion 1222 is connected to a first massage head 1. 31 is connected, and a first eccentric connecting part 1222 passes through a first strip groove 1111. So when the drive motor 121 drives the worm gear 1211 to rotate, the worm gear 1211 drives the first output gear 1221 to rotate. At this time, the first eccentric connecting part 1222 moves back and forth along the length direction f4 of the core housing 11 under the drive of the first output gear 1221 and the limiting action of the first strip groove 1111, thereby driving the first massage head 131 to move back and forth along the length direction f4 of the core housing 11.

[0096] The second transmission gear set 123 in this application is located inside the mechanism housing 11 and on one side of the worm gear 1211 along the length direction f4 of the mechanism housing 11. The second transmission gear set 123 is meshed with the worm gear 1211. The second transmission gear set 123 includes a plurality of meshing second output gears 1231. Each second output gear 1231 has a second eccentric connecting part 1232 on its end face, which is eccentrically positioned to the center of the second output gear 1231. A second eccentric connecting part 1232 is connected to a second massage head 1. 41 is connected, and a second eccentric connecting part 1232 passes through a second strip groove 1121. So when the drive motor 121 drives the worm gear 1211 to rotate, the worm gear 1211 drives the second output gear 1231 to rotate. At this time, the second eccentric connecting part 1232 moves back and forth along the length direction f4 of the core housing 11 under the drive of the second output gear 1231 and the limiting action of the second strip groove 1121, thereby driving the second massage head 141 to move back and forth along the length direction f4 of the core housing 11.

[0097] Through the above design, the linear reciprocating motion of each massage head of the first massage group 13 and the second massage group 14 along the length direction f4 of the core housing 11 is powered by the same drive motor 121. That is, multiple massage heads share the same drive motor 121 to achieve linear reciprocating motion along the length direction f4 of the core housing 11. This makes the structure of the waist massage core 10 more compact, which is conducive to miniaturization and cost saving. At the same time, under the drive of the same drive motor 121, multiple massage heads can simultaneously exert a pinching massage effect on the muscles on both sides of the lumbar spine, which helps to maintain the consistency of massage on both sides of the spine.

[0098] As one embodiment, at least one first eccentric connecting part 1222 includes a first swing arm 1223. One end of the first swing arm 1223 is eccentrically connected to the first output gear 1221, and the other end of the first swing arm 1223 is connected to a first connecting shaft 1224. The first connecting shaft 1224 is connected to the middle of the first massage head 131 in the width direction f5 of the core housing 11. Specifically, the first connecting shaft 1224 can be connected to a first rotating shaft 1316. The first connecting shaft 1224 passes through the first strip groove 1111, and the first connecting shaft 1224 can move relative to the first strip groove 1111 along the length direction f4 of the core housing 11 under the drive of the first swing arm 1223, and rotate relative to the first strip groove 1111, so as to drive the first massage head 131 to reciprocate rotating around the first connecting shaft 1224 while moving along the length direction f4 of the core housing 11, that is, to reciprocate rotating around the first rotating shaft 1316.

[0099] That is, when the drive motor 121 drives the worm gear 1211 to rotate, the worm gear 1211 drives the first output gear 1221 to rotate. At this time, one end of the first swing arm 1223 rotates together with the first output gear 1221, while the other end passes through the first connecting shaft 1224 in the first slot 1111. Therefore, the first connecting shaft 1224 can move back and forth along the length direction f4 of the core housing 11 under the drive of the first swing arm 1223 and under the limiting action of the first slot 1111, and at the same time rotate relative to the first slot 1111, thereby driving the first massage head 131 to move back and forth along the length direction f4 of the core housing 11 while rotating back and forth around the first rotating shaft 1316.

[0100] Similarly, at least one second eccentric connecting part 1232 includes a second swing arm 1233. One end of the second swing arm 1233 is eccentrically connected to the second output gear 1231, and the other end of the second swing arm 1233 is connected to a second connecting shaft 1234. The second connecting shaft 1234 is connected to the middle of the second massage head 141 in the width direction f5 of the core housing 11. Specifically, the second connecting shaft 1234 can be connected to the second rotating shaft 1413. The second connecting shaft passes through the second strip groove 1121, and the second connecting shaft 1234 can move relative to the second strip groove 1121 along the length direction f4 of the core housing 11 under the drive of the second swing arm 1233, and rotate relative to the second strip groove 1121, so as to drive the second massage head 141 to reciprocate rotating around the second connecting shaft 1234 while moving along the length direction f4 of the core housing 11, that is, to reciprocate rotating around the second rotating shaft 1413.

[0101] That is, when the drive motor 121 drives the worm gear 1211 to rotate, the worm gear 1211 drives the second output gear 1231 to rotate. At this time, one end of the second swing arm 1233 rotates together with the second output gear 1231, while the other end passes through the second connecting shaft 1234 in the second slot 1121. Therefore, the second connecting shaft 1234 can move back and forth along the length direction f4 of the core housing 11 under the drive of the second swing arm 1233 and under the limiting action of the second slot 1121, and at the same time rotate relative to the second slot 1121, thereby driving the second massage head 141 to move back and forth along the length direction f4 of the waist massager while rotating back and forth around the second rotating shaft 1413.

[0102] Through the above design, a massage head (i.e., the first massage head 131 and the second massage head 141) can simultaneously perform reciprocating linear motion and reciprocating rotational motion to enhance the richness of the massage sensation. At the same time, the reciprocating linear motion and reciprocating rotational motion of the massage head are powered by the same drive motor 121. That is, multiple motion modes of the massage head can be realized by sharing the same drive motor 121. This makes the structure of the waist massage mechanism 10 more compact, which is conducive to miniaturization design and cost savings.

[0103] Understandably, when the reciprocating linear motion and reciprocating rotational motion of a massage head (i.e., the first massage head and the second massage head) are powered by different power mechanisms, that is, when the reciprocating linear motion of a massage head is powered by one motor (i.e., the aforementioned drive motor), and the reciprocating rotational motion of the massage head is powered by another motor, the motor used to drive the massage head to rotate can be set on the eccentric connecting part (i.e., the first eccentric connecting part and the second eccentric connecting part), and the output shaft of the motor is connected to the rotational shaft of the massage head (i.e., the first rotational shaft and the second rotational shaft) to drive the massage head to perform reciprocating rotational motion around the rotational shaft.

[0104] In one embodiment, a first reduction gear set 124 is provided between the worm gear 1211 and the first transmission gear set 122. The input end of the first reduction gear set 124 is meshed with the worm gear 1211, and the output end of the first reduction gear set 124 is meshed with the first transmission gear set 122. By providing the first reduction gear set 124, the speed of the first massage unit 13 can be reduced and the torque increased, thereby improving the massage intensity.

[0105] Optionally, the first reduction gear set 124 may include one or more first sub-reduction gears 1241. The specific number may vary depending on the actual situation, and this application does not impose a specific limitation on it.

[0106] Similarly, a second reduction gear set 125 is provided between the worm gear 1211 and the second transmission gear set 123. The input end of the second reduction gear set 125 is meshed with the worm gear 1211, and the output end of the second reduction gear is meshed with the second transmission gear set 123. By providing the second reduction gear set 125, the second massage unit 14 can be decelerated and its torque increased, thereby enhancing the massage intensity.

[0107] Optionally, the second reduction gear set 125 may include one or more second sub-reduction gears 1251. The specific number may vary depending on the actual situation, and this application does not impose a specific limitation on it.

[0108] 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.

[0109] Furthermore, the embodiments described above are merely illustrative of several implementation methods of this application, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of this application. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this application, and these all fall within the protection scope of this application. Therefore, the content of this specification should not be construed as a limitation of this application, and the protection scope of this application should be determined by the appended claims.

Claims

1. A waist massage mechanism, characterized in that, The waist massage mechanism includes: Movement housing; A drive unit is mounted on the movement housing; A first massage group, connected to the driving device, and located on one side of the driving device along the length of the housing, includes a plurality of first massage heads spaced apart along the length of the housing. Each first massage head performs a massage motion under the driving action of the driving device, and the protrusion height of the plurality of first massage heads relative to the housing gradually decreases in the direction from the driving device to the first massage group along the length of the housing. The second massage group is connected to the drive device and is located on the other side of the drive device along the length of the housing. The second massage group includes a plurality of second massage heads spaced apart along the length of the housing. Each second massage head performs a massage motion under the drive of the drive device. In the direction from the drive device to the second massage group along the length of the housing, the height of the plurality of second massage heads protruding relative to the housing gradually decreases.

2. The waist massage mechanism according to claim 1, characterized in that, Along the length of the movement housing, two first massage heads form a pair of first massage heads, and two of the first massage heads in the pair move closer to or further away from each other along the length of the movement housing under the driving action of the driving device; and / or Along the length of the housing, two second massage heads form a pair of second massage heads, and the two second massage heads in the pair move closer to or further away from each other along the length of the housing under the driving action of the driving device.

3. The waist massage mechanism according to claim 2, characterized in that, Among the plurality of first massage heads, the first massage head closest to the drive device is the first inner massage head, and among the plurality of second massage heads, the second massage head closest to the drive device is the second inner massage head. As the first inner massage head and the second inner massage head move closer to or further away from each other, the first inner massage head and the second inner massage head protrude at the same height relative to the core housing.

4. The waist massage mechanism according to claim 2, characterized in that, Among the plurality of first massage heads, the first massage head closest to the driving device is the first inner massage head, and among the plurality of second massage heads, the second massage head closest to the driving device is the second inner massage head; The first inner massage head includes a first massage portion and a first connecting portion. The first connecting portion is disposed on the surface of the first massage portion facing the core housing. The first connecting portion is rotatably connected to the driving device via a first rotating shaft. The axial direction of the first rotating shaft is parallel to the width direction of the core housing. The second inner massage head includes a second massage portion and a second connecting portion. The second connecting portion is disposed on the surface of the second massage portion facing the core housing. The second connecting portion is rotatably connected to the driving device via a second rotating shaft. The axial directions of the second rotating shaft and the first rotating shaft are parallel. When the first inner massage head and the second inner massage head approach each other, the first massage part and the second massage part rotate around the first rotating axis and the second rotating axis respectively under the massage reaction force, so that the first massage part and the second massage part move away from each other. When the first inner massage head and the second inner massage head move away from each other, the first massage part and the second massage part rotate around the first rotating axis and the second rotating axis respectively under the massage reaction force, so that the first massage part and the second massage part move closer to each other.

5. The waist massage mechanism according to claim 2, characterized in that, At least one of the first massage heads is connected to a first rotating shaft extending along the thickness direction of the core housing. The first rotating shaft is connected to the drive device. When at least one of the first massage heads moves along the length direction of the core housing, at least one of the first massage heads reciprocates around the first rotating shaft at both ends in the width direction of the core housing. And / or, At least one of the second massage heads is connected to a second rotating shaft extending along the thickness direction of the core housing at its middle portion. The second rotating shaft is connected to the drive device. When at least one of the second massage heads moves along the length direction of the core housing, the at least one of the second massage heads reciprocates around the second rotating shaft at both ends in the width direction of the core housing.

6. The waist massage mechanism according to claim 2, characterized in that, The minimum distance between any two adjacent first massage heads in the length direction of the mechanism housing is greater than 10mm, the minimum distance between any two adjacent second massage heads in the length direction of the mechanism housing is greater than 10mm, and the minimum distance between adjacent first massage heads and second massage heads in the length direction of the mechanism housing is greater than 10mm.

7. The waist massage mechanism according to claim 2, characterized in that, The edges of any two adjacent first massage heads that are close to each other are covered with flexible material, the edges of any two adjacent second massage heads that are close to each other are covered with flexible material, and the edges of adjacent first massage heads and second massage heads that are close to each other are covered with flexible material.

8. The waist massage mechanism according to any one of claims 2-7, characterized in that, The first massage group includes two first massage heads spaced apart along the length of the core housing, and the second massage group includes two second massage heads spaced apart along the length of the core housing. The first massage head farthest from the drive device among the two first massage heads is the first outer massage head, and the second massage head farthest from the drive device among the two second massage heads is the second outer massage head. The first outer massage head and the second outer massage head extend along the width direction of the core housing, and the skin-proximal surfaces of the first outer massage head and the second outer massage head respectively include two spaced-apart protrusions and a recess located between the two protrusions. The two protrusions are used to contact the massage area during massage.

9. The waist massage mechanism according to any one of claims 1-7, characterized in that, Both the first massage head and the second massage head are elongated strips extending along the width direction of the core housing. Along the width direction of the core housing, both the first massage head and the second massage head are arc-shaped, with the middle part convex towards the massage area and the sides curved away from the massage area, so as to fit the waist of the human body.

10. The waist massage mechanism according to any one of claims 1-7, characterized in that, At least one of the first massage heads and / or at least one of the second massage heads has one or more massage protrusions on its skin-proximal surface; When at least one of the first massage heads and / or at least one of the second massage heads has a plurality of massage protrusions on its skin-proximal surface, the plurality of massage protrusions are arranged at intervals along the width direction of the core housing.

11. A waist massager, characterized in that, The waist massager includes a wearing component and a waist massage mechanism as described in any one of claims 1-10, wherein the waist massage mechanism is connected to the wearing component, and the wearing component is used to wear the waist massage mechanism on the waist of a human body.

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