Waist massager core and waist massager

Abstract

The application discloses a waist massaging mechanism and a waist massaging instrument. The waist massaging mechanism comprises a shell, a driving device, a first massaging group and a second massaging group. The first massaging group is connected with the driving device and exposed to the working side of the shell, and can move in the first direction under the driving of the driving device. The second massaging group is connected with the driving device and exposed to the working side of the shell. The skin-close side of the first massaging group has a first inclined surface close to the second massaging group. The skin-close side of the second massaging group has a second inclined surface close to the first massaging group. In the second direction, the first inclined surface is gradually arranged in the direction away from the second massaging group from the side close to the shell. The second inclined surface is gradually arranged in the direction away from the first massaging group from the side close to the shell. By adopting the scheme, the continuous massaging effect on multiple points of the waist can be realized, the force on the massaging part around the spine is weakened, and discomfort or damage to the massaging part around the spine is avoided.

Description

Technical Field

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

[0002] Prolonged standing or sitting can put significant pressure on the lower back. Without proper muscle training, this can easily lead to lower back pain and strain. However, manual lower back massage is not only time-consuming and laborious, making it difficult to maintain for extended periods, but also often results in poor massage effectiveness due to limitations in technique and pressure control. In response, a wearable lower back massager has emerged on the market.

[0003] However, since waist massagers in related technologies usually achieve waist massage through the rotation of the massage head, and the rotation of the massage head can only be planar, such waist massagers can usually only press or pound a certain area of ​​the waist during actual use. The massage area is small, resulting in poor massage effect. Moreover, the force is concentrated in one place, and the waist massager needs to be frequently adjusted to massage different areas, which is quite troublesome to operate. Summary of the Invention

[0004] This application discloses a waist massage mechanism and a waist massager, which can achieve continuous massage effect on multiple points of the waist while reducing the force on the massage area around the spine, thus avoiding discomfort or even damage to the massage area around the spine.

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

[0006] A housing that extends along a first direction and has a working side and an exterior side in a second direction, the second direction being angled to the first direction;

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

[0008] A first massage assembly, connected to the drive device and exposed on the working side, is capable of movement under the drive of the drive device; and...

[0009] The second massage group is connected to the driving device and exposed on the working side. The second massage group and the first massage group are arranged at intervals along the first direction. The second massage group and the first massage group can move closer to each other or further away from each other under the drive of the driving device.

[0010] The first massage group has a first inclined surface near the second massage group on the skin-proximal side, and the second massage group has a second inclined surface near the first massage group on the skin-proximal side. In the second direction, the first inclined surface is gradually inclined from the side near the housing towards the direction away from the second massage group, and the second inclined surface is gradually inclined from the side near the housing towards the direction away from the first massage group.

[0011] As an optional implementation, in the embodiment of the first aspect of this application, the first massage group includes an even number of first massage heads, the even number of first massage heads are arranged at intervals along the first direction, and two first massage heads form a pair of first massage heads, the two first massage heads in the pair of first massage heads are relatively close to each other or far apart from each other under the drive of the driving device.

[0012] The second massage group includes an even number of second massage heads, which are arranged at intervals along the first direction, and two second massage heads form a pair of second massage heads. Under the drive of the driving device, the two second massage heads in the pair are relatively close to each other or far apart from each other.

[0013] In the first massage group, the first massage head closest to the second massage group is configured as the first inner massage head, and the second massage head closest to the first massage group in the second massage group is configured as the second inner massage head. The first inner massage head and the second inner massage head move closer to each other or further away from each other under the drive of the driving device. The first inclined surface is formed on the first inner massage head, and the second inclined surface is formed on the second inner massage head.

[0014] As an optional implementation, in an embodiment of the first aspect of this application, the housing is provided with a first clearance groove and a second clearance groove communicating between the interior and exterior of the housing, and the driving device includes a power mechanism, a first swing arm and a second swing arm, the power mechanism being fixed to the housing;

[0015] The first swing arm has a first end and a second end. The first end is located inside the housing and is movably connected to the housing. The second end extends out of the housing from the first clearance groove and is connected to the first massage group. The first swing arm is connected to the power mechanism, and the first swing arm swings with the first end as the fulcrum under the drive of the power mechanism, so as to drive the first massage group to swing in a direction closer to or away from the second massage group.

[0016] The second swing arm has a third end and a fourth end. The third end is located inside the housing and is movably connected to the housing. The fourth end extends out of the housing from the second clearance groove and is connected to the second massage group. The second swing arm is connected to the power mechanism, and the second swing arm swings with the third end as the fulcrum under the drive of the power mechanism, so as to drive the second massage group to swing in a direction closer to or away from the first massage group.

[0017] As an optional implementation, in an embodiment of the first aspect of this application, the driving device further includes a first gear and a first swing arm located inside the housing. One end face of the first gear extends along the second direction and is rotatably connected to the housing via a first rotating shaft. The first gear is connected to the power mechanism so that it can rotate under the drive of the power mechanism. The other end face of the first gear is provided with a first eccentric portion whose center is eccentrically disposed to the first rotating shaft. One end of the first swing arm is connected to the first eccentric portion, and the other end of the first swing arm is connected to the first swing rod. The first swing arm drives the first swing rod to swing around the first end as a fulcrum under the rotation of the first gear; and / or,

[0018] The driving device further includes a second gear and a second swing arm located inside the housing. One end face of the second gear extends along the second direction and is connected to a second rotating shaft that is rotatably connected to the housing. The second gear is connected to the power mechanism so that the second gear can rotate under the drive of the power mechanism. The other end face of the second gear is provided with a second eccentric part whose center is eccentrically set with respect to the second rotating shaft. One end of the second swing arm is connected to the second eccentric part, and the other end of the second swing arm is connected to the second swing rod. Under the rotation of the second gear, the second swing arm drives the second swing rod to swing around the third end as a fulcrum.

[0019] As an optional implementation, in an embodiment of the first aspect of this application, when the driving device further includes the first gear, the first swing arm, the second gear and the second swing arm located inside the housing, the power mechanism includes a drive motor and a worm gear. The drive motor is disposed on the housing, the worm gear is located inside the housing and connected to the drive motor, and the worm gear rotates under the drive of the drive motor.

[0020] The worm extends along a third direction, and the first gear and the second gear are respectively located on both sides of the worm in the first direction, and the first gear and the second gear are respectively meshed with the worm, wherein the third direction is configured to be perpendicular to both the first direction and the second direction.

[0021] As an optional implementation, in the embodiment of the first aspect of this application, the first end of the first swing arm is provided with a first rotating ball, the inner surface of the housing is provided with a first ball groove, and the first rotating ball is at least partially rotatably disposed inside the first ball groove;

[0022] The third end of the second swing arm is provided with a second rotating ball, and the inner surface of the housing is provided with a second ball groove. The second rotating ball is at least partially rotatably disposed inside the second ball groove.

[0023] As an optional implementation, in an embodiment of the first aspect of this application, the housing includes a first housing, a second housing, and a third housing connected sequentially along the second direction, the exterior side is formed in the first housing, the working side is formed in the third housing, and the first clearance groove and the second clearance groove are formed in the third housing;

[0024] The first ball groove includes a first sub-ball groove and a second sub-ball groove. The first sub-ball groove is formed by a recess in the inner surface of the first housing facing away from the second housing. The second sub-ball groove is formed by a recess in the inner surface of the second housing facing away from the first housing. The second sub-ball groove has a first slot through which the first swing rod passes. The second sub-ball groove and the first sub-ball groove are in communication. The first rotating ball is rotatably disposed inside the first sub-ball groove and the second sub-ball groove; and / or,

[0025] The second ball groove includes a third sub-ball groove and a fourth sub-ball groove. The first housing is recessed towards the inner surface of the second housing to form the third sub-ball groove, and the second housing is recessed towards the inner surface of the first housing to form the fourth sub-ball groove. The fourth sub-ball groove has a second slot for the second swing rod to pass through. The fourth sub-ball groove and the third sub-ball groove are connected. The second rotating ball is rotatably disposed inside the third sub-ball groove and the fourth sub-ball groove.

[0026] As an optional implementation, in an embodiment of the first aspect of this application, a direction perpendicular to the first direction and the second direction is configured as a third direction, in which the projection of the swing motion of the first massage group and the second massage group on the working side is a straight line extending along the first direction.

[0027] As an optional implementation, in the embodiment of the first aspect of this application, the direction perpendicular to the first direction and the second direction is configured as a third direction;

[0028] The first clearance groove extends along the first direction to allow the first swing arm to swing in the first direction to move closer to or away from the second massage group, and to limit the first swing arm from swinging in the third direction.

[0029] The second clearance groove extends along the first direction to allow the second swing arm to swing in the first direction to move closer to or away from the first massage group, and to limit the swing arm from swinging in the third direction.

[0030] As an optional implementation, in an embodiment of the first aspect of this application, both the first and second rocker arms are located at the center of the housing in a third direction, wherein the third direction is configured to be perpendicular to both the first and second directions.

[0031] As an optional implementation, in an embodiment of the first aspect of this application, the first pendulum and the second pendulum are arranged in a straight line in the first direction.

[0032] As an optional implementation, in the embodiment of the first aspect of this application, both the first massage group and the second massage group include a hard massage part and a soft rubber part. The hard massage part is connected to the driving device, and the soft rubber part is disposed on the hard massage part. The soft rubber part protrudes at least partially from the skin-like surface of the hard massage part away from the housing in a direction away from the housing.

[0033] The first inclined surface is formed on the hard massage portion of the first massage group, and the second inclined surface is formed on the hard massage portion of the second massage group.

[0034] As an optional implementation, in an embodiment of the first aspect of this application, the hard massage part has a mounting hole on its skin-proximal surface, and the soft rubber part is embedded in the mounting hole in a dotted shape.

[0035] As an optional implementation, in the embodiment of the first aspect of this application, the first massage group includes a first outer massage head and a first inner massage head, and the second massage group includes a second outer massage head and a second inner massage head, wherein the first inner massage head and the second inner massage head are located between the first outer massage head and the second outer massage head;

[0036] The first inner massage head has the soft rubber part on one side near the first outer massage head, and the first outer massage head has the soft rubber part on one side near the first inner massage head.

[0037] The second inner massage head has the soft rubber portion on one side near the second outer massage head, and the second outer massage head has the soft rubber portion on one side near the second inner massage head. In a second aspect, this application discloses a waist massager having the waist massage mechanism described in the first aspect above.

[0038] Compared with the prior art, the beneficial effects of this application are as follows:

[0039] The lumbar massage mechanism and lumbar massager provided in this application embodiment include a first massage group and a second massage group. When the lumbar massage mechanism is worn on the waist, the first massage group and the second massage group are located on the left and right sides of the spine, respectively. The first massage group and the second massage group can move closer to each other or further away from each other under the drive of the drive device, so that the first massage group and the second massage group can press on different areas of the waist. This can achieve the effect of continuous multi-point massage of the waist by the first massage group and the second massage group, thereby achieving a continuous multi-point pressing effect on the waist, increasing the massage area, improving the massage effect and ease of use of the lumbar massage mechanism, and improving the user's massage experience.

[0040] Based on this, this application further forms a first inclined surface near the second massage group on the skin-proximal side of the first massage group, and a second inclined surface near the first massage group on the skin-proximal side of the second massage group. Furthermore, in the direction of the first massage group protruding relative to the housing, the first inclined surface gradually tilts from the side closest to the housing towards the direction away from the second massage group, and the second inclined surface gradually tilts from the side closest to the housing towards the direction away from the first massage group. Thus, when the first and second massage groups approach each other and act on the massage area around the spine, the first and second inclined surfaces can mimic the oblique pushing massage motion of a human hand, and the massage area is relatively large, dispersing the force exerted by the first and second massage groups on the massage area around the spine. This reduces the force on the massage area around the spine, preventing discomfort or even damage to the massage area around the spine due to excessive massage force from the first and second massage groups. Attached Figure Description

[0041] To more clearly illustrate the technical solutions in the embodiments of this application, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0042] Figure 1 This is a schematic diagram of the first structure of the waist massager disclosed in the embodiments of this application;

[0043] Figure 2 This is a schematic diagram of the second structure of the waist massager disclosed in the embodiments of this application;

[0044] Figure 3 This is a three-dimensional structural schematic diagram of the waist massage mechanism disclosed in the embodiments of this application;

[0045] Figure 4 This is a first exploded structural diagram of the waist massage mechanism disclosed in the embodiments of this application;

[0046] Figure 5 This is a front view of the waist massage mechanism disclosed in the embodiments of this application;

[0047] Figure 6 This is a second exploded structural diagram of the waist massage mechanism disclosed in the embodiments of this application;

[0048] Figure 7 This is a schematic diagram of the structure of the driving device disclosed in the embodiments of this application;

[0049] Figure 8 This is a schematic diagram of the drive device disclosed in the embodiments of this application from another perspective;

[0050] Figure 9 This is a schematic diagram of the structure of the housing and drive device disclosed in the embodiments of this application;

[0051] Figure 10 The housing and drive device disclosed in the embodiments of this application are along Figure 9 A cross-sectional view along the AA direction;

[0052] Figure 11 yes Figure 10 A magnified view of point M in the image;

[0053] Figure 12 yes Figure 10 A magnified view of point N in the image;

[0054] Figure 13 This is a schematic diagram of the structure of the first massage group, the second massage group, the first swing rod, and the second swing rod disclosed in the embodiments of this application;

[0055] Figure 14 yes Figure 13 The exploded diagram.

[0056] Explanation of main figure symbols

[0057] 100-Waist Massager;

[0058] 10-Waist massage mechanism; 11-House; 11a-First housing; 11b-Second housing; 11c-Third housing; 111-Working side; 112-Appearance side; 113-First clearance groove; 114-Second clearance groove; 115-First ball groove; 115a-First sub-ball groove; 115b-Second sub-ball groove; 115c-First slot opening; 116-Second ball groove; 116a-Third sub-ball groove; 116b-Fourth sub-ball groove; 116c-Second slot opening; 12-Drive device; 121-Power mechanism; 1211-Drive motor; 1212-Worm gear; 122-First swing arm; 122a-First end; 122b-Second end; 122c-First rotating ball; 123-Second swing arm; 123a - Third end; 123b - Fourth end; 123c - Second rotating ball; 124 - First gear; 1241 - First shaft; 1242 - First eccentric part; 125 - First swing arm; 126 - Second gear; 1261 - Second shaft; 1262 - Second eccentric part; 127 - Second swing arm; 13 - First massage assembly; 13a - First inclined surface; 13b - Hard massage part; 13b1 - Mounting hole; 13c - Soft rubber part; 131 - First massage head; 131a - First inner massage head; 131b - First outer massage head; 14 - Second massage assembly; 14a - Second inclined surface; 141 - Second massage head; 141a - Second inner massage head; 141b - Second outer massage head;

[0059] 20 - Wearing component; 21 - First wearing part; 22 - Second wearing part;

[0060] f1 - length direction; f2 - width direction; f3 - thickness direction. Detailed Implementation

[0061] 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.

[0062] 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 is for the purpose of describing particular embodiments only and is not intended to be limiting of the application.

[0063] 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.

[0064] 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.

[0065] 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 the terms “comprising / including” or “having,” etc., 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. Meanwhile, the term “and / or” as used in this specification includes any and all combinations of the associated listed items.

[0066] It is well known that prolonged sitting can 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. To meet market demand, electric massagers (also known as lumbar massagers) for lumbar massage have emerged.

[0067] However, related technologies typically include only two massage heads: one (hereinafter referred to as the first massage head) is located on the left side of the spine, and the other (hereinafter referred to as the second massage head) is located on the right side of the spine. In actual massage, the first massage head can only push or pound the muscles on the left side of the spine, and the second massage head can only push or pound the muscles on the left side of the spine. Even if the first and second massage heads can move closer or further apart, they cannot effectively pinch and massage the muscles (mainly the erector spinae muscles) on both sides of the lumbar spine. This results in an unsatisfactory massage effect and fails to achieve a good lumbar massage effect, making it difficult to meet the user's needs.

[0068] In response, the applicant attempted to improve the massage effect by including two massage groups in the lumbar massager. Each massage group includes inner and outer massage heads that are close to or far apart from each other. One massage group (hereinafter referred to as the first massage group) is located on the left side of the spine, and the other massage group (hereinafter referred to as the second massage group) is located on the right side of the spine. During the actual massage, the inner and outer massage heads of the first massage group can be relatively close to each other to achieve a pinching massage effect on the erector spinae muscles on the left side of the lumbar spine, and the inner and outer massage heads of the second massage group can be relatively close to each other to achieve a pinching massage effect on the erector spinae muscles on the right side of the lumbar spine.

[0069] Among the four massage heads mentioned above, the inner massage head is the closest to the lumbar spine compared to the outer massage head. When the two inner massage heads are close to each other, they mainly act on the spine to massage it.

[0070] To ensure the effective pinching massage of the erector spinae muscles when the inner and outer massage heads are close together, the inner and outer massage heads need to have a large massage force. However, this can lead to excessive massage force from the two inner massage heads on the spine, which can easily cause damage or discomfort to the spine during massage.

[0071] In view of this, the present application provides a waist massage mechanism. When applied to a waist massager and worn on the waist, it can simultaneously provide a pinching massage effect on the muscles near the lumbar spine and the erector spinae muscles on both sides of the lumbar spine, and can reduce the force on the massage area around the spine, thus avoiding discomfort or even damage to the massage area around the spine.

[0072] The technical solutions of some embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0073] 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 piece 20. The waist massage mechanism 10 is mounted on the wearing piece 20, allowing the wearing piece 20 to be used to wear the waist massage mechanism 10 on the waist of the user. This frees up the user's hands when the waist massage mechanism 10 massages the waist, improving the convenience and comfort of using the waist massager 100.

[0074] The waist massager 100 has a length direction f1, a width direction f2, and a thickness direction f3. When the waist massager 100 is in a flattened state, for example... Figure 1 In the illustrated state, the length direction f1, width direction f2, and thickness direction f3 of the lumbar massager 100 are mutually perpendicular. When the lumbar massager 100 is worn on the waist, the length direction f1 of the lumbar massager 100 extends around the waist, the width direction f2 of the lumbar massager 100 extends along the extension direction of the spine, and the thickness direction f3 of the lumbar massager 100 is configured to point from the lumbar massager 100 towards the waist.

[0075] An example, such as Figure 1 As shown, the wearable component 20 can be an integrally formed strip structure. The wearable component 20 extends along the length direction f1 of the waist massager 100. The waist massage mechanism 10 is approximately located at the middle position of the wearable component 20 along the length direction f1 of the waist massager 100. The waist massage mechanism 10 can be located inside the wearable component 20, outside the wearable component 20, or partially inside the wearable component 20 and partially outside the wearable component 20. The two ends of the wearable component 20 along the length direction f1 of the waist massager 100 can be connected by Velcro, D-ring buckles, etc., to fix it to the waist of the human body.

[0076] Another example, such as Figure 2 As shown, the wearing component 20 may include a first wearing component 21 and a second wearing component 22 that are separately arranged. The waist massage mechanism 10 is connected between the first wearing component 21 and the second wearing component 22. The first wearing component 21, the waist massage mechanism 10 and the second wearing component 22 are arranged sequentially along the length direction f1 of the waist massager 100. The first wearing component 21 and the second wearing component 22 are both strip-shaped structures extending along the length direction f1 of the waist massager 100. The end of the first wearing component 21 away from the waist massage mechanism 10 and the end of the second 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.

[0077] Please see Figure 3 , 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 an exploded structural diagram from one side view of one implementation of the waist massage mechanism in this application. The waist massage mechanism 10 provided in the embodiment of this application includes a housing 11, a drive device 12, a first massage group 13, and a second massage group 14.

[0078] In this application, the housing 11 is connected to the wearable device, and the housing 11 extends along a first direction, and the housing 11 has a working side 111 and an appearance side 112 in a second direction, wherein the second direction and the first direction are set at an angle, for example, the second direction and the first direction are set at approximately 90°.

[0079] In this application, as Figure 3 As shown, the first direction can be understood as the length direction f1 of the waist massager, and the second direction can be understood as the thickness direction f3 of the waist massager.

[0080] In this application, the drive device 12 is disposed on the housing 11. The drive device 12 can be disposed on the outside of the housing 11 or inside the housing 11. When the drive device 12 is disposed inside the housing 11, a portion of the drive device 12 is exposed outside the housing 11 to facilitate connection between the drive device 12 and the first massage group 13 and the second massage group 14.

[0081] In this application, the first massage group 13 is connected to the drive device 12 and exposed on the working side 111 of the housing 11, and the first massage group 13 can move under the drive of the drive device 12. The second massage group 14 is connected to the drive device 12 and exposed on the working side 111 of the housing 11, and the second massage group 14 and the first massage group 13 are arranged at intervals along a first direction. The second massage group 14 can move under the drive of the drive device 12, and the second massage group 14 and the first massage group 13 can move closer to each other or further away from each other under the drive of the drive device 12.

[0082] When the waist massage mechanism 10 of this application is worn on the waist, the first massage group 13 and the second massage group 14 are located on the left and right sides of the spine, respectively. 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. During the actual massage process, the first massage group 13 and the second massage group 14 can move closer to each other or further away from each other under the drive of the drive device 12, so that the first massage group 13 and the second massage group 14 can press different areas of the waist, thereby achieving the effect of continuous multi-point massage of the waist by the first massage group 13 and the second massage group 14. This achieves a continuous multi-point pressing effect on the waist, increases the massage area, improves the massage effect and ease of use of the waist massage mechanism 10, and improves the user's massage experience.

[0083] Furthermore, when the first massage group 13 and the second massage group 14 are close to each other, they can massage the area around the spine.

[0084] In some embodiments, such as Figure 5As shown, the proximal side of the first massage group 13 has a first inclined surface 13a close to the second massage group 14, and the proximal side of the second massage group 14 has a second inclined surface 14a close to the first massage group 13. In the second direction, that is, in Figure 5 In the f3 direction, the first inclined surface 13a is gradually inclined from the side near the housing 11 toward the direction away from the second massage group 14, and the second inclined surface 14a is gradually inclined from the side near the housing 11 toward the direction away from the first massage group 13.

[0085] By forming a first inclined surface 13a near the skin of the first massage group 13 and close to the second massage group 14, and forming a second inclined surface 14a near the skin of the second massage group 14 and close to the first massage group 13, and by gradually tilting the first inclined surface 13a from the side near the housing 11 away from the second massage group 14 in the direction in which the first massage group 13 protrudes relative to the housing 11, and by gradually tilting the second inclined surface 14a from the side near the housing 11 away from the first massage group 13, when the first massage group 13 and the second massage group 14 approach each other and act on the massage area around the spine, the first inclined surface 13a and the second inclined surface 14a can be used to imitate the oblique pushing massage action of the human palm on the massage area, and the massage area is relatively large, which disperses the force of the first massage group 13 and the second massage group 14 on the massage area around the spine, thereby reducing the force on the massage area around the spine, so as to avoid the massage force of the first massage group 13 and the second massage group 14 being too large and causing discomfort or even damage to the massage area around the spine.

[0086] In some embodiments, the first massage group 13 includes a plurality of first massage heads 131, such as two, three, four, five, etc., and the plurality of first massage heads 131 are spaced apart along a first direction. The arrangement of the plurality of first massage heads 131 can increase the massage area of ​​the first massage group 13 and improve the massage effect of the waist massage mechanism 10 on the waist.

[0087] In some embodiments, the second massage group 14 includes a plurality of second massage heads 141, such as two, three, four, five, etc., and the plurality of second massage heads 141 are spaced apart along a first direction. The arrangement of the plurality of second massage heads 141 can increase the massage area of ​​the second massage group 14 and enhance the massage effect of the waist massage mechanism 10 on the waist.

[0088] Furthermore, the first massage group 13 may include an even number of first massage heads 131, which are arranged at intervals along a first direction, and two first massage heads 131 form a pair of first massage heads 131. The two first massage heads 131 in a pair are driven by the driving device 12 to move closer to each other or further away from each other. The second massage group 14 includes an even number of second massage heads 141, which are arranged at intervals along the first direction, and two second massage heads 141 form a pair of second massage heads 141. The two second massage heads 141 in a pair of second massage heads 141 are driven by the driving device 12 to move closer to each other or further away from each other.

[0089] When the lumbar massage mechanism 10 is worn on the human waist, the first massage group 13 and the second massage group 14 are located on the left and right sides of the spine, respectively. 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. Since the two first massage heads 131 in the pair can move closer or further apart under the drive of the drive device 12, they can exert an oblique pushing and pinching massage effect on the erector spinae muscles on the left side of the spine. At the same time, since the two second massage heads 141 in the pair can move closer or further apart under the drive of the drive device 12, they can exert an oblique pushing and pinching massage effect on the erector spinae muscles on the right side of the spine. In this way, the two massage groups (i.e., the first massage group 13 and the second massage group 14) can imitate the human hand to perform oblique pushing and pinching massage on the erector spinae muscles on the left and right sides of the spine. 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, better meeting the user's lumbar massage needs.

[0090] 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.

[0091] 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 and the second massage group 14 including two second massage heads 141. This application does not limit the first massage group 13 to only including two first massage heads 131 or the second massage group 14 to only including two second massage heads 141. In other implementations of this application, the first massage group 13 may also include four, six, or more first massage heads 131; similarly, the second massage group 14 may also include four, six, or more second massage heads 141. This application does not specifically limit this.

[0092] For ease of description, this application, as Figure 5 As shown, the first massage head 131, which is closest to the second massage group 14 in the first massage group 13, is configured as the first inner massage head 131a, and the second massage head 141, which is closest to the first massage group 13 in the second massage group 14, is configured as the second inner massage head 141a. However, it should be understood that the above definitions are only for the convenience of describing and understanding this application, and should not be used to limit the scope of protection of this application.

[0093] In this application, the first inner massage head 131a and the second inner massage head 141a can move closer to each other or further apart under the drive of the drive device 12. When the first inner massage head 131a and the second inner massage head 141a move closer to each other, they can massage the muscles near the spine. A first inclined surface 13a is formed on the first inner massage head 131a, and a second inclined surface 14a is formed on the second inner massage head 141a.

[0094] By setting inclined surfaces on the first inner massage head 131a and the second inner massage head 141a near the spine, the massage force of the massage head near the spine is less than that of the massage head far from the spine. This allows for targeted massage of different areas of the waist. It avoids excessive massage force from the waist massage mechanism 10 on the massage areas around the spine, which could cause discomfort or even damage, while ensuring sufficient massage force for the massage areas far from the spine, thus ensuring the massage effect and comfort of each massage area of ​​the waist.

[0095] In some embodiments, such as Figure 6 and Figure 7 As shown, the housing 11 is provided with a first clearance groove 113 that connects the inside and outside of the housing 11. The drive device 12 includes a power mechanism 121 and a first swing arm 122. The power mechanism 121 is fixed to the housing 11. The first swing arm 122 has a first end 122a and a second end 122b. The first end 122a is located inside the housing 11 and is movably connected to the housing 11. The second end 122b extends out of the first clearance groove 113 and is connected to the first massage group 13. The first swing arm 122 is connected to the power mechanism 121, and the first swing arm 122 swings with the first end 122a as the fulcrum under the drive of the power mechanism 121, so as to drive the first massage group 13 to swing in the direction of approaching or moving away from the second massage group 14.

[0096] In some embodiments, the housing 11 is further provided with a second clearance groove 114 that connects the interior and exterior of the housing 11. The drive device 12 also includes a second swing arm 123, which has a third end 123a and a fourth end 123b. The third end 123a is located inside the housing 11 and is movably connected to the housing 11. The fourth end 123b extends out of the second clearance groove 114 and is connected to the second massage group 14. The second swing arm 123 is connected to the power mechanism 121, and the second swing arm 123 swings with the third end 123a as the fulcrum under the drive of the power mechanism 121, so as to drive the second massage group 14 to swing in a direction closer to or away from the first massage group 13.

[0097] In the above design, when the first massage group 13 and the second massage group 14 approach each other, during this arc-shaped swinging process, the first massage group 13 swings towards the second massage group 14, and the second massage group 14 swings towards the first massage group 13. This causes the area of ​​the first inclined surface 13a near the spine to gradually move closer to the housing 11, and the area of ​​the second inclined surface 14a near the spine to gradually move closer to the housing 11. That is, the area of ​​the first inclined surface 13a near the spine gradually moves away from the spine, and the area of ​​the second inclined surface 14a near the spine gradually moves away from the spine. This increases the distance between the area of ​​the first inclined surface 13a near the spine and its corresponding massage part, and also increases the distance between the area of ​​the second inclined surface 14a near the spine and its corresponding massage part. This further reduces the force on the massage parts around the spine, and effectively avoids discomfort or even injury caused by excessive force from the first massage group 13 and the second massage group 14.

[0098] In some embodiments, such as Figure 6 As shown, the first clearance groove 113 is along the first direction (i.e. Figure 6 The first swing arm 122 extends in the f1 direction to allow it to swing closer to or further away from the second massage group 14 in the first direction, and restricts it in the third direction (i.e., in the f1 direction). Figure 6 The second relief groove 114 extends along the first direction to allow the second rocker arm 123 to swing in the first direction to move closer to or away from the first massage group 13, and to limit the second rocker arm 123 from swinging in the third direction.

[0099] For example, the first clearance groove 113 may be a strip groove extending along the first direction, such as a rectangular groove or an elliptical groove, etc., and the second clearance groove 114 may be a strip groove extending along the first direction, such as a rectangular groove or an elliptical groove, etc.

[0100] This setup avoids the massage positions of each massage group (i.e., the first massage group 13 and the second massage group 14) fluctuating in the third direction during massage, ensuring the consistency of the massage effect. At the same time, it allows the first massage group 13 and the second massage group 14 to achieve a better pinching massage effect.

[0101] In some embodiments, in the third direction, the projection of the swinging motion of the first massage group 13 and the second massage group 14 onto the working side 111 is a straight line extending along the first direction. This ensures that during the massage process, the massage position of each massage group 13 and the second massage group 14 does not fluctuate drastically in the third direction, allowing each massage group to maintain a consistent massage effect when swinging to any position in the first direction, thereby improving the massage effect of the waist massage mechanism 10.

[0102] In some embodiments, the first swing arm 122 and the second swing arm 123 are both located at the center of the housing 11 in the third direction. This ensures that when the waist massage mechanism 10 is assembled onto the wearer, the first massage group 13 and the second massage group 14 are both located at the center of the wearer in its width direction. The center of the wearer in its width direction provides the best support, ensuring sufficient support for the first and second massage groups 13 and 14 during massage, thus guaranteeing the massage effect of the first and second massage groups 13 and 14.

[0103] In some embodiments, the first swing arm 122 and the second swing arm 123 are arranged in a straight line in a first direction. This ensures that when the waist massage mechanism 10 is assembled onto the wearer, the first massage group 13 and the second massage group 14 are arranged in a straight line along the length of the waist belt, thereby ensuring that the support force of the wearer on the first massage group 13 and the second massage group 14 is consistent. This, in turn, ensures that the massage effect of the first massage group 13 and the second massage group 14 is consistent during the massage process, thus improving the massage effect.

[0104] In some embodiments, such as Figures 6 to 8As shown, the drive device 12 also includes a first gear 124 and a first swing arm 125 located inside the housing 11. One end face of the first gear 124 extends along the second direction and is rotatably connected to the housing 11. The first gear 124 is connected to the power mechanism 121 so that the first gear 124 can rotate under the drive of the power mechanism 121. The other end face of the first gear 124 is provided with a first eccentric part 1242 whose center is eccentrically set with respect to the first rotating shaft 1241. One end of the first swing arm 125 is connected to the first eccentric part 1242, and the other end of the first swing arm 125 is connected to the first swing rod 122. Under the rotation of the first gear 124, the first swing arm 125 drives the first swing rod 122 to swing around the first end 122a as the fulcrum.

[0105] When the power mechanism 121 drives the first gear 124 to rotate, the first swing arm 125 rotates together with the first gear 124 and pulls the first swing rod 122 to swing with the end that is movably connected to the housing 11 (i.e. the first end 122a) as the fulcrum, thereby driving the first massage group 13 to swing towards or away from the second massage group 14.

[0106] The circumferential rotation of the first gear 124 causes the first swing arm 125 to drive the first swing rod 122 to swing with the end (i.e. the first end 122a) movably connected to the housing 11 as the fulcrum. This achieves the design of the first massage group 13 swinging towards or away from the second massage group 14. The structure is relatively simple, easy to implement, and also helps to reduce costs.

[0107] In some embodiments, such as Figures 6 to 8 As shown, the drive device 12 also includes a second gear 126 and a second swing arm 127 located inside the housing 11. One end face of the second gear 126 extends along the second direction and is rotatably connected to the housing 11 with a second rotating shaft 1261. The second gear 126 is connected to the power mechanism 121 so that the second gear 126 can rotate under the drive of the power mechanism 121. The other end face of the second gear 126 is provided with a second eccentric part 1262 whose center is eccentrically set with respect to the second rotating shaft 1261. One end of the second swing arm 127 is connected to the second eccentric part 1262, and the other end of the second swing arm 127 is connected to the second swing rod 123. Under the rotation of the second gear 126, the second swing arm 127 drives the second swing rod 123 to swing with the third end 123a as the fulcrum.

[0108] When the power mechanism 121 drives the second gear 126 to rotate, the second swing arm 127 rotates together with the second gear 126 and pulls the second swing rod 123 to swing with the end (i.e. the third end 123a) movably connected to the housing 11 as the fulcrum, thereby driving the second massage group 14 to swing towards or away from the first massage group 13.

[0109] The second gear 126 rotates circumferentially, causing the second swing arm 127 to drive the second swing rod 123 to swing with the end (i.e. the third end 123a) movably connected to the housing 11 as the fulcrum. This achieves the design of the second massage group 14 swinging towards or away from the first massage group 13. The structure is relatively simple, easy to implement, and also helps to reduce costs.

[0110] like Figure 7 and Figure 8 As shown, when the drive device 12 further includes a first gear 124, a first swing arm 125, a second gear 126, and a second swing arm 127 located inside the housing 11, the power mechanism 121 includes a drive motor 1211 and a worm gear 1212. The drive motor 1211 is mounted on the housing 11, and the worm gear 1212 is located inside the housing 11 and connected to the drive motor 1211. The worm gear 1212 rotates under the drive of the drive motor 1211 and extends along a third direction. The first gear 124 and the second gear 126 are located on both sides of the worm gear 1212 in the first direction, and the first gear 124 and the second gear 126 are meshed with the worm gear 1212. The third direction is configured to be perpendicular to both the first and second directions. This third direction can be understood as the width direction f2 of the waist massager.

[0111] When the drive motor 1211 drives the worm gear 1212 to rotate, the worm gear 1212 synchronously drives the first gear 124 and the second gear 126 located on both sides of the worm gear 1212 to rotate. As a result, the first swing arm 125 can rotate together with the first gear 124 and pull the first swing rod 122 to swing with its end movably connected to the housing 11 (i.e., the first end 122a) as the fulcrum. This causes the first massage group 13 to swing towards or away from the second massage group 14. The second swing arm 127 can rotate together with the second gear 126 and pull the second swing rod 123 to swing with its end movably connected to the housing 11 (i.e., the third end 123a) as the fulcrum. This causes the second massage group 14 to swing towards or away from the first massage group 13.

[0112] Through the above design, the swing of the first massage group 13 and the second massage group 14 can be powered by the same drive motor. This makes the structure of the waist massage core 10 simpler and more compact, which is conducive to miniaturization and cost saving. At the same time, under the drive of the same drive motor, multiple massage groups can massage the muscles on both sides of the spine simultaneously, which helps to maintain the consistency of massage on both sides of the spine.

[0113] like Figures 6 to 8As shown, when the first massage group 13 includes a plurality of first massage heads 131, the first massage group 13 includes a plurality of first gears 124, a plurality of first swing arms 125 and a plurality of first swing rods 122. The plurality of first gears 124 are arranged along a first direction, and two adjacent first gears 124 mesh with each other. The first gear 124 that is closest to the worm gear 1212 in the first direction meshes with the worm gear 1212. One end of each first swing arm 125 is connected to the first eccentric part 1242 of a first gear 124, and the other end of each first swing arm 125 is connected to a first swing rod 122. Each first swing rod 122 is connected to a first massage head 131. When the drive motor 1211 drives the worm 1212 to rotate, the worm 1212 drives the first gear 124 meshing with it to rotate, and the first gear 124 meshing with the worm 1212 drives the first gear 124 meshing with it to rotate, and so on. Multiple first gears 124 can be powered by the same drive motor 1211 to rotate.

[0114] like Figures 6 to 8 As shown, when the second massage group 14 includes a plurality of second massage heads 141, the second massage group 14 includes a plurality of second gears 126, a plurality of second swing arms 127 and a plurality of second swing rods 123. The plurality of second gears 126 are arranged along a first direction, and two adjacent second gears 126 mesh with each other. The second gear 126 closest to the worm gear 1212 in the first direction meshes with the worm gear 1212. One end of each second swing arm 127 is connected to the second eccentric part 1262 of a second gear 126, and the other end of each second swing arm 127 is connected to a second swing rod 123. Each second swing rod 123 is connected to a second massage head 141. When the drive motor 1211 drives the worm 1212 to rotate, the worm 1212 drives the second gear 126 meshing with it to rotate, and the second gear 126 meshing with the worm drives the second gear 126 meshing with it to rotate, and so on. Multiple second gears 126 can be powered by the same drive motor 1211 to rotate.

[0115] As can be seen, through the above design, the oscillation of 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 can be powered by the same drive motor 1211. This makes the structure of the waist massage mechanism 10 simpler and more compact, which is more conducive to miniaturization design and cost saving.

[0116] In some embodiments, combined with Figure 6 , Figure 8 , Figure 9 and Figure 10As shown, a first rotating ball 122c is provided at the first end 122a of the first swing arm 122, and a first ball groove 115 is provided on the inner surface of the housing 11. The first rotating ball 122c is at least partially rotatably disposed inside the first ball groove 115. This allows the first swing arm 122 to swing flexibly, reduces the friction between the first swing arm 122 and the housing 11, and facilitates the swing of the first swing arm 122. At the same time, the housing 11 can support the first swing arm 122 to provide sufficient support for the first massage head 131, ensuring the massage effect of the first massage head 131 during the massage process.

[0117] Similarly, a second rotating ball 123c is provided at the third end 123a of the second swing arm 123, and a second ball groove 116 is provided on the inner surface of the housing 11. The second rotating ball 123c is at least partially rotatably disposed inside the second ball groove 116. This allows the second swing arm 123 to swing flexibly, reduces the friction between the second swing arm 123 and the housing 11, and facilitates the swinging of the second swing arm 123. At the same time, the housing 11 can support the second swing arm 123 to provide sufficient support for the second massage head 141, ensuring the massage effect of the second massage head 141 during the massage process.

[0118] In some embodiments, such as Figure 10 As shown, the housing 11 includes a first housing 11a, a second housing 11b and a third housing 11c connected sequentially along a second direction, wherein an exterior side 112 is formed in the first housing 11a, a working side 111 is formed in the third housing 11c, and a first clearance groove 113 and a second clearance groove 114 are formed in the third housing 11c.

[0119] In some embodiments, such as Figure 10 and Figure 11 As shown, the first ball groove 115 includes a first sub-ball groove 115a and a second sub-ball groove 115b. The first sub-ball groove 115a is formed by the inner surface of the first housing 11a facing away from the second housing 11b, and the second sub-ball groove 115b is formed by the inner surface of the second housing 11b facing away from the first housing 11a. The second sub-ball groove 115b is provided with a first slot 115c for the first swing rod 122 to pass through, and the second sub-ball groove 115b and the first sub-ball groove 115a are connected. The first rotating ball 122c is rotatably disposed inside the first sub-ball groove 115a and the second sub-ball groove 115b.

[0120] The first ball groove 115 adopts the above structure, which can increase the contact area between the first ball groove 115 and the first rotating ball 122c, improve the rotational stability of the first rotating ball 122c in the first ball groove 115, thereby improving the swing stability of the first swing rod 122, which is conducive to ensuring the massage effect of the first massage head 131 during the massage process.

[0121] Similarly, such as Figure 10 and Figure 12 As shown, the second ball groove 116 includes a third sub-ball groove 116a and a fourth sub-ball groove 116b. The third sub-ball groove 116a is formed by the inner surface of the first housing 11a facing away from the second housing 11b. The fourth sub-ball groove 116b is formed by the inner surface of the second housing 11b facing away from the first housing 11a. The fourth sub-ball groove 116b is provided with a second slot 116c for the second rocker arm 123 to pass through. The fourth sub-ball groove 116b and the third sub-ball groove 116a are connected. The second rotating ball 123c is rotatably disposed inside the third sub-ball groove 116a and the fourth sub-ball groove 116b.

[0122] The second ball groove 116 adopts the above structure, which can increase the contact area between the second ball groove 116 and the second rotating ball 123c, improve the rotational stability of the second rotating ball 123c in the second ball groove 116, thereby improving the swing stability of the second swing arm 123, which is conducive to ensuring the massage effect of the second massage head 141 during the massage process.

[0123] In some embodiments, such as Figure 13 As shown, both the first massage group 13 and the second massage group 14 include a hard massage part 13b and a soft rubber part 13c. The hard massage part 13b is connected to the drive device 12, and the soft rubber part 13c is disposed on the hard massage part 13b, with at least a portion of the soft rubber part 13c protruding from the skin-facing surface of the hard massage part 13b away from the housing. This increases the friction between the skin-facing surface of the hard body and the massage area through the soft rubber part 13c, thereby better engaging the muscles when massaging the waist with the first massage group 13 and the second massage group 14, thus improving the massage effect.

[0124] The first inclined surface 13a is formed in the hard massage portion 13b of the first massage group 13, and the second inclined surface 14a is formed in the hard massage portion 13b of the second massage group 14.

[0125] In some embodiments, the first massage group 13 further includes a first outer massage head 131b, and the second massage group 14 further includes a second outer massage head 141b, wherein the first inner massage head 131a and the second inner massage head 141a are located between the first outer massage head 131b and the second outer massage head 141b. The first inner massage head 131a has the aforementioned soft rubber portion 13c on the side near the first outer massage head 131b, and the first outer massage head 131b has the aforementioned soft rubber portion 13c on the side near the first inner massage head 131a; the second inner massage head 141a has the aforementioned soft rubber portion 13c on the side near the second outer massage head 141b, and the second outer massage head 141b has the aforementioned soft rubber portion 13c on the side near the second inner massage head 141a.

[0126] This design allows the soft rubber part 13c to come into contact with the massage area earlier than the hard massage part 13b during massage, thereby increasing the surface friction of the hard massage part 13b and thus better engaging the muscles and enhancing the massage effect.

[0127] In some embodiments, such as Figure 14 As shown, the hard massage part 13b has a mounting hole 13b1 on its skin-like surface, and the soft rubber part 13c is embedded in the mounting hole 13b1 in a raised dot shape. The raised dot shape of the soft rubber part 13c can locally increase the friction between the hard massage part 13b and the massage area, while avoiding the situation of the soft rubber part 13c being too large and causing skin irritation, thereby improving the massage effect and massage comfort.

[0128] 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.

[0129] 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: A housing that extends along a first direction and has a working side and an exterior side in a second direction, the second direction being angled to the first direction; A drive unit is mounted on the housing; A first massage assembly, connected to the drive device and exposed on the working side, is capable of movement under the drive of the drive device; and... The second massage group is connected to the driving device and exposed on the working side. The second massage group and the first massage group are arranged at intervals along the first direction. The second massage group and the first massage group can move closer to each other or further away from each other under the drive of the driving device. The first massage group has a first inclined surface near the second massage group on the skin-proximal side, and the second massage group has a second inclined surface near the first massage group on the skin-proximal side. In the second direction, the first inclined surface is gradually inclined from the side near the housing towards the direction away from the second massage group, and the second inclined surface is gradually inclined from the side near the housing towards the direction away from the first massage group.

2. The waist massage mechanism according to claim 1, characterized in that, The first massage group includes an even number of first massage heads, which are arranged at intervals along the first direction, and two first massage heads form a pair of first massage heads. Under the drive of the driving device, the two first massage heads in the pair are relatively close to each other or far apart from each other. The second massage group includes an even number of second massage heads, which are arranged at intervals along the first direction, and two second massage heads form a pair of second massage heads. Under the drive of the driving device, the two second massage heads in the pair are relatively close to each other or far apart from each other. In the first massage group, the first massage head closest to the second massage group is configured as the first inner massage head, and the second massage head closest to the first massage group in the second massage group is configured as the second inner massage head. The first inner massage head and the second inner massage head move closer to each other or further away from each other under the drive of the driving device. The first inclined surface is formed on the first inner massage head, and the second inclined surface is formed on the second inner massage head.

3. The waist massage mechanism according to claim 1, characterized in that, The housing is provided with a first clearance groove and a second clearance groove that connect the inside and outside of the housing. The driving device includes a power mechanism, a first swing arm and a second swing arm. The power mechanism is fixed to the housing. The first swing arm has a first end and a second end. The first end is located inside the housing and is movably connected to the housing. The second end extends out of the housing from the first clearance groove and is connected to the first massage group. The first swing arm is connected to the power mechanism, and the first swing arm swings with the first end as the fulcrum under the drive of the power mechanism, so as to drive the first massage group to swing in a direction closer to or away from the second massage group. The second swing arm has a third end and a fourth end. The third end is located inside the housing and is movably connected to the housing. The fourth end extends out of the housing from the second clearance groove and is connected to the second massage group. The second swing arm is connected to the power mechanism, and the second swing arm swings with the third end as the fulcrum under the drive of the power mechanism, so as to drive the second massage group to swing in a direction closer to or away from the first massage group.

4. The waist massage mechanism according to claim 3, characterized in that, The driving device further includes a first gear and a first swing arm located inside the housing. One end face of the first gear extends along the second direction and has a first rotating shaft rotatably connected to the housing. The first gear is connected to the power mechanism so that it can rotate under the drive of the power mechanism. The other end face of the first gear has a first eccentric portion whose center is eccentrically set to the first rotating shaft. One end of the first swing arm is connected to the first eccentric portion, and the other end of the first swing arm is connected to the first swing rod. The first swing arm drives the first swing rod to swing about the first end as a fulcrum under the rotation of the first gear; and / or, The driving device further includes a second gear and a second swing arm located inside the housing. One end face of the second gear extends along the second direction and is connected to a second rotating shaft that is rotatably connected to the housing. The second gear is connected to the power mechanism so that the second gear can rotate under the drive of the power mechanism. The other end face of the second gear is provided with a second eccentric part whose center is eccentrically set with respect to the second rotating shaft. One end of the second swing arm is connected to the second eccentric part, and the other end of the second swing arm is connected to the second swing rod. Under the rotation of the second gear, the second swing arm drives the second swing rod to swing around the third end as a fulcrum.

5. The waist massage mechanism according to claim 4, characterized in that, When the drive device further includes the first gear, the first swing arm, the second gear, and the second swing arm located inside the housing, the power mechanism includes a drive motor and a worm gear. The drive motor is mounted on the housing, and the worm gear is located inside the housing and connected to the drive motor. The worm gear rotates under the drive of the drive motor. The worm extends along a third direction, and the first gear and the second gear are respectively located on both sides of the worm in the first direction, and the first gear and the second gear are respectively meshed with the worm, wherein the third direction is configured to be perpendicular to both the first direction and the second direction.

6. The waist massage mechanism according to claim 3, characterized in that, The first end of the first swing arm is provided with a first rotating ball, and the inner surface of the housing is provided with a first ball groove. The first rotating ball is at least partially rotatably disposed inside the first ball groove. The third end of the second swing arm is provided with a second rotating ball, and the inner surface of the housing is provided with a second ball groove. The second rotating ball is at least partially rotatably disposed inside the second ball groove.

7. The waist massage mechanism according to claim 6, characterized in that, The housing includes a first housing, a second housing, and a third housing connected sequentially along the second direction. The exterior side is formed in the first housing, the working side is formed in the third housing, and the first clearance groove and the second clearance groove are formed in the third housing. The first ball groove includes a first sub-ball groove and a second sub-ball groove. The first sub-ball groove is formed by a recess in the inner surface of the first housing facing away from the second housing. The second sub-ball groove is formed by a recess in the inner surface of the second housing facing away from the first housing. The second sub-ball groove has a first slot through which the first swing rod passes. The second sub-ball groove and the first sub-ball groove are in communication. The first rotating ball is rotatably disposed inside the first sub-ball groove and the second sub-ball groove; and / or, The second ball groove includes a third sub-ball groove and a fourth sub-ball groove. The first housing is recessed towards the inner surface of the second housing to form the third sub-ball groove, and the second housing is recessed towards the inner surface of the first housing to form the fourth sub-ball groove. The fourth sub-ball groove has a second slot for the second swing rod to pass through. The fourth sub-ball groove and the third sub-ball groove are connected. The second rotating ball is rotatably disposed inside the third sub-ball groove and the fourth sub-ball groove.

8. The waist massage mechanism according to claim 6, characterized in that, A direction perpendicular to the first and second directions is configured as a third direction, in which the projection of the swing motion of the first massage group and the second massage group on the working side is a straight line extending along the first direction.

9. The waist massage mechanism according to claim 6, characterized in that, The direction perpendicular to the first direction and the second direction is configured as a third direction; The first clearance groove extends along the first direction to allow the first swing arm to swing in the first direction to move closer to or away from the second massage group, and to limit the first swing arm from swinging in the third direction. The second clearance groove extends along the first direction to allow the second swing arm to swing in the first direction to move closer to or away from the first massage group, and to limit the swing arm from swinging in the third direction.

10. The waist massage mechanism according to claim 3, characterized in that, Both the first and second rocker arms are located at the center of the housing in a third direction, wherein the third direction is configured to be perpendicular to both the first and second directions.

11. The waist massage mechanism according to claim 3, characterized in that, The first pendulum and the second pendulum are arranged in a straight line in the first direction.

12. The waist massage mechanism according to any one of claims 1-11, characterized in that, Both the first massage group and the second massage group include a hard massage part and a soft rubber part. The hard massage part is connected to the drive device, and the soft rubber part is disposed on the hard massage part. At least part of the soft rubber part protrudes from the hard massage part in a direction away from the housing, near the skin surface opposite to the housing. The first inclined surface is formed on the hard massage portion of the first massage group, and the second inclined surface is formed on the hard massage portion of the second massage group.

13. The waist massage mechanism according to claim 12, characterized in that, The hard massage part has a mounting hole on its skin-friendly surface, and the soft rubber part is embedded in the mounting hole in the form of raised dots.

14. The waist massage mechanism according to claim 12, characterized in that, The first massage group includes a first outer massage head and a first inner massage head, and the second massage group includes a second outer massage head and a second inner massage head, with the first inner massage head and the second inner massage head located between the first outer massage head and the second outer massage head; The first inner massage head has the soft rubber part on one side near the first outer massage head, and the first outer massage head has the soft rubber part on one side near the first inner massage head. The second inner massage head has the soft rubber portion on one side near the second outer massage head, and the second outer massage head has the soft rubber portion on one side near the second inner massage head.

15. A waist massager, characterized in that, The waist massager has a waist massage mechanism as described in any one of claims 1-14.

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