Massage machine core and waist massage instrument

Abstract

The application discloses a massage core and a waist massage instrument. The massage core comprises a core shell, a driving device, a first massage group and a second massage group. The first massage group and the second massage group are located on both sides of the driving device in the length direction of the waist massage instrument. The first massage group comprises at least one pair of first massage heads arranged at intervals in the length direction of the waist massage instrument. Two first massage heads in each pair of first massage heads are close to or away from each other in the length direction of the waist massage instrument under the action of the driving device. The second massage group comprises at least one pair of second massage heads arranged at intervals in the length direction of the waist massage instrument. Two second massage heads in each pair of second massage heads are close to or away from each other in the length direction of the waist massage instrument under the action of the driving device. The massage core and the waist massage instrument provided in the application can simultaneously achieve a pinching massage effect on the muscles near the waist spine and the erector spinae muscles on the left and right sides of the waist spine, and improve the massage effect.

Description

Technical Field

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

[0002] Prolonged sitting can cause the lumbar muscles to be in a state of high tension for a long time, which can damage the health of the lumbar muscles and lead to lumbar muscle strain. Lumbar massagers can massage the lumbar region and have a soothing effect, so they are increasingly favored by users.

[0003] However, most waist massagers use simple pushing or pounding motions to achieve their massage function. The range of motion is small, and the massage area is also small. In actual use, they can only massage the muscles near the lumbar spine, resulting in an unsatisfactory massage effect. They cannot achieve a good waist massage effect, and they cannot massage the muscles on both sides of the lumbar spine (mainly the erector spinae muscles), which fails to meet the user's needs. Summary of the Invention

[0004] This invention discloses a massage mechanism and a lumbar massager, which 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, thereby enhancing the massage effect and meeting the user's requirements.

[0005] To achieve the above objectives, in a first aspect, the present invention discloses a massage mechanism for use in a lumbar massager, the 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 waist massager, includes at least one pair of first massage heads spaced apart along the length of the waist massager. Under the driving action of the driving device, two of the first massage heads in each pair move closer to or further away from each other along the length of the waist massager.

[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 waist massager. The second massage group includes at least one pair of second massage heads spaced apart along the length of the waist massager. Under the driving action of the drive device, the two second massage heads in each pair move closer to or further away from each other along the length of the waist massager.

[0010] As an optional implementation, in an embodiment of the first aspect of the present invention, at least one of the first massage heads in each pair of first massage heads has at least one massage protrusion on its proximal surface, and / or, at least one of the second massage heads in each pair of second massage heads has at least one massage protrusion on its proximal surface.

[0011] As an optional implementation, in an embodiment of the first aspect of the present invention, the first massage group and the second massage group are symmetrically arranged with respect to the driving device, and at least one group of the first massage head and the second massage head symmetrically arranged with respect to the driving device have a plurality of massage protrusions protruding from their skin surfaces, and the plurality of massage protrusions are spaced apart along the width direction of the waist massager.

[0012] As an optional implementation, in an embodiment of the first aspect of the invention, the massage head closer to the driving device in each pair of first massage heads is a first inner massage head, and the massage head farther from the driving device is a first outer massage head. The first inner massage head has a first side facing the first outer massage head, and the first outer massage head has a second side facing the first inner massage head. A first recess is formed inwardly at the middle of one of the first and second sides, and a first protrusion is formed outwardly at the middle of the other of the first and second sides; and / or,

[0013] The massage head closer to the drive device in each pair of second massage heads is the second inner massage head, and the massage head further away from the drive device is the second outer massage head. The second inner massage head has a third side facing the second outer massage head, and the second outer massage head has a fourth side facing the second inner massage head. The middle portion of one of the third side and the fourth side is recessed inward to form a second recess, and the middle portion of the other of the third side and the fourth side is protruded outward to form a second protrusion.

[0014] 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 waist massager 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 waist massager, at least one of the first massage heads reciprocates around the first rotating shaft at both ends in the width direction of the waist massager; and / or,

[0015] At least one of the second massage heads is connected to a second rotating shaft extending along the thickness direction of the waist massager 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 waist massager, at least one of the second massage heads reciprocates around the second rotating shaft at both ends in the width direction of the waist massager.

[0016] As an optional implementation, in an embodiment of the first aspect of the invention, the two first massage heads in each pair move at the same speed along the length direction of the waist massager; and / or,

[0017] The two second massage heads in each pair move at the same speed along the length of the waist massager.

[0018] As an optional implementation, in an embodiment of the first aspect of the invention, the two first massage heads in each pair of first massage heads move the same distance along the length direction of the waist massager; and / or,

[0019] The two second massage heads in each pair move an equal distance along the length of the waist massager.

[0020] As an optional implementation, in an embodiment of the first aspect of the present invention, the mechanism housing is provided with a first groove group and a second groove group, the first groove group and the second groove group being respectively located on both sides of the driving device in the length direction of the waist massager, and the first groove group including at least a pair of first strip grooves spaced apart along the length direction of the waist massager, each of the first strip grooves extending along the length direction of the waist massager, the second groove group including at least a pair of second strip grooves spaced apart along the length direction of the waist massager, each of the second strip grooves extending along the length direction of the waist massager, the driving device including:

[0021] A drive motor is mounted on the core housing and has a worm gear located inside the core housing. The worm gear extends along the width direction of the waist massager, and the first massage group and the second massage group are respectively located on both sides of the worm gear in the length direction of the waist massager.

[0022] A first transmission gear set is located inside the core housing and on one side of the worm gear along the length of the waist massager. The first transmission gear set is meshed with the worm gear. The first transmission gear set includes at least one pair of meshing first output gears. The end faces of two of the first output gears in each pair are respectively provided with a first eccentric connecting portion eccentrically positioned to the center of the first output gear. The two first eccentric connecting portions of each pair of first output gears are respectively connected to two of the two first massage heads in each pair of first massage heads, and the two first eccentric connecting portions of each pair of first output gears pass through two of the two first slots in each pair of first slots.

[0023] The second transmission gear set is located inside the core housing and on one side of the worm gear along the length of the waist massager. The second transmission gear set is meshed with the worm gear. The second transmission gear set includes at least one pair of meshing second output gears. The end faces of the two second output gears in each pair are respectively provided with a second eccentric connection portion that is eccentrically positioned to the center of the second output gear. The two second eccentric connection portions in each pair of second output gears are respectively connected to the two second massage heads in each pair of second massage heads. The two second eccentric connection portions in each pair of second output gears are respectively inserted into the two second grooves in each pair of second grooves.

[0024] As an optional implementation, in an embodiment of the first aspect of the present invention, in each pair of the first output gears, at least one of the first eccentric connecting portions includes a first swing arm, one end of the first swing arm being eccentrically connected to the first output gear, and the other end of the first swing arm being connected to a first connecting shaft. The first connecting shaft is connected to the first massage head at the middle of the waist massager in the width direction. The first connecting shaft passes through the first strip groove, and the first connecting shaft can move relative to the first strip groove along the length direction of the waist massager under the drive of the first swing arm, and rotate relative to the first strip groove, so as to drive the first massage head to reciprocate and rotate around the first connecting shaft while moving along the length direction of the waist massager; and / or,

[0025] In each pair of second output gears, at least one second eccentric connecting part includes a second swing arm. One end of the second swing arm is eccentrically connected to the second output gear, and the other end of the second swing arm is connected to a second connecting shaft. The second connecting shaft is connected to the second massage head at the middle of the width direction of the waist massager. The second connecting shaft passes through the second strip groove, and the second connecting shaft can move relative to the second strip groove along the length direction of the waist massager under the drive of the second swing arm, and rotate relative to the second strip groove, so as to drive the second massage head to reciprocate and rotate around the second connecting shaft while moving along the length direction of the waist massager.

[0026] As an optional implementation, in an embodiment of the first aspect of the present invention, a first reduction gear set is provided between the worm and the first transmission gear set, the input end of the first reduction gear set being meshed with the worm, and the output end of the first reduction gear set being meshed with the first transmission gear set; and / or,

[0027] A second reduction gear set is provided between the worm and the second transmission gear set. The input end of the second reduction gear set is meshed with the worm, and the output end of the second reduction gear is meshed with the second transmission gear set.

[0028] As an optional implementation, in an embodiment of the first aspect of the present invention, the first massage group includes a pair of first massage heads, and the second massage group includes a pair of second massage heads, wherein the height of the pair of first massage heads and second massage heads arranged in the middle protruding relative to the core housing is higher than the height of the other pair of first massage heads and second massage heads protruding relative to the core housing.

[0029] 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 waist massager, and along the width direction of the waist massager, both the first massage head and / or the second massage head are arc-shaped with the middle part convex inward and the sides curved outward, so as to fit against the waist of the human body.

[0030] In a second aspect, the present invention discloses a waist massager, which includes a wearable component and a massage mechanism as described in the first aspect above. The massage mechanism is mounted on the wearable component, and the wearable component is used to wear the massage mechanism on the waist of a human body.

[0031] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0032] The massage mechanism and lumbar massager provided in this embodiment of the invention include a first massage group and a second massage group located on both sides of the spine. One of the first massage group and the second massage group 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 is located on the left side of the spine, and the second massage group is located on the right side of the spine. The first massage group includes at least one pair of first massage heads that can move closer or further apart under the drive of a driving device. The second massage group includes at least one pair of second massage heads that can move closer or further apart under the drive of a driving device. When the pair of first massage heads on the left side moves closer to each other in a straight line under the drive of the driving device, it can provide a pinching massage effect on the muscles on the left side of the lumbar spine (mainly the left erector spinae muscle). When the pair of second massage heads on the right side moves closer to each other in a straight line under the drive of the driving device, it can provide a pinching massage effect on the muscles on the right side of the lumbar spine (mainly the right erector spinae muscle). On the one hand, the massage mechanism in this application has at least four massage heads, which increases the massage area and allows for a large-area massage of the human waist. It also massages the muscles near the lumbar spine and the erector spinae muscles on both sides of the lumbar spine, achieving a more effective massage. On the other hand, each pair of first and second massage heads can perform reciprocating linear movements along the length direction, mimicking a human hand massage of the erector spinae muscles on both sides of the lumbar spine. This simulates the pinching and massaging action of two fingers on the erector spinae muscles on both sides of the lumbar spine, providing good comfort and better conforming to the symmetrical characteristics of the erector spinae muscles and structure on both sides of the lumbar spine, thus better meeting the user's waist massage needs. Attached Figure Description

[0033] 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.

[0034] Figure 1 This is a schematic diagram of the first structure of the waist massager disclosed in the embodiments of the present invention;

[0035] Figure 2 This is a schematic diagram of the second structure of the waist massager disclosed in the embodiments of the present invention;

[0036] Figure 3 This is a schematic diagram of the structure of the massage mechanism disclosed in an embodiment of the present invention;

[0037] Figure 4 This is a top view of the massage mechanism disclosed in an embodiment of the present invention;

[0038] Figure 5This is a schematic diagram of the structure of the first massage head / second massage head disclosed in an embodiment of the present invention;

[0039] Figure 6 This is a front view of the massage mechanism disclosed in an embodiment of the present invention;

[0040] Figure 7 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.

[0041] Figure 8 This is a first exploded structural diagram of the massage mechanism disclosed in the embodiments of the present invention;

[0042] Figure 9 yes Figure 8 An exploded structural diagram of the massage mechanism from another perspective;

[0043] Figure 10 This is a second exploded structural diagram of the massage mechanism disclosed in an embodiment of the present invention.

[0044] Explanation of main figure symbols

[0045] 100-Waist Massager;

[0046] 10-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; 125-Second reduction gear group; 1251-Second sub-reduction gear; 13-The Massage group 1; 131-First massage head; 131a-First inner massage head; 131a1-First side; 131b-First outer massage head; 131b1-Second side; 131c-First sub-massage head; 131d-Second sub-massage head; 1311-Massage protrusion; 1312-First recess; 1313-First protrusion; 1314-First rotating shaft; 14-Second massage group; 141-Second massage head; 141a-Second inner massage head; 141a1-Third side; 141b-Second outer massage head; 141b1-Fourth side; 141c-Third sub-massage head; 141d-Fourth sub-massage head; 1411-Second recess; 1412-Second protrusion; 1413-Second rotating shaft;

[0047] 20 - Wearing component; 21 - First wearing part; 22 - Second wearing part;

[0048] f1 - length direction; f2 - width direction; f3 - thickness direction. Detailed Implementation

[0049] 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.

[0050] 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.

[0051] 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.

[0052] 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.

[0053] 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. Furthermore, 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, or B alone. That is, the term “and / or” as used in this specification includes any and all combinations of the related listed items.

[0054] 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.

[0055] 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.

[0056] In view of this, the present application provides a massage mechanism that, when applied to a waist massager and worn on the waist, 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, thereby enhancing the massage effect and meeting the user's requirements.

[0057] The technical solution of this application will be further described in detail below with reference to the accompanying drawings.

[0058] 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 provides a waist massager 100, which includes a massage mechanism 10 and a wearing piece 20. The massage mechanism 10 is mounted on the wearing piece 20, allowing the wearing piece 20 to be used to wear the massage mechanism 10 on the waist of a person. This frees up the hands when the massage mechanism 10 massages the waist, improving the convenience and comfort of using the waist massager 100.

[0059] 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.

[0060] 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 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 massage mechanism 10 can be located inside or 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-rings, etc., to fix it to the waist of the human body.

[0061] 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 massage mechanism 10 is connected between the first wearing component 21 and the second wearing component 22. The first wearing component 21, the 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 massage mechanism 10 and the end of the second wearing component 22 away from the massage mechanism 10 can be connected by Velcro, D-ring buckle or the like to fix it to the waist of the human body.

[0062] Please see Figures 2 to 4 , Figure 3 This is a structural schematic diagram from one side view of one implementation of the massage mechanism in this application. Figure 4 This is a structural schematic diagram from another perspective of one implementation of the massage mechanism in this application. The massage mechanism 10 provided in this embodiment of the invention includes a mechanism housing 11, a drive device 12, a first massage group 13, and a second massage group 14.

[0063] In this application, the movement housing 11 is connected to the wearing piece 20.

[0064] 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.

[0065] 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 in the length direction f1 of the waist massager 100. The first massage group 13 includes at least one pair of first massage heads 131 spaced apart along the length direction f1 of the waist massager 100. Under the driving action of the drive device 12, the two first massage heads 131 in each pair move closer to each other or further away from each other along the length direction f1 of the waist massager 100.

[0066] In this application, the second massage group 14 is located outside the core 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 in the length direction f1 of the waist massager 100. The second massage group 14 includes at least one pair of second massage heads 141 spaced apart along the length direction f1 of the waist massager 100. Under the driving action of the drive device 12, the two second massage heads 141 in each pair move closer to each other or further away from each other along the length direction f1 of the waist massager 100.

[0067] When the 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 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. The first massage group 13 includes at least one pair of first massage heads 131 that can move closer or further apart under the drive of the drive device 12. The second massage group 14 includes at least one pair of second massage heads 141 that can move closer or further apart under the drive of the drive device 12. When the pair of first massage heads 131 on the left side moves closer to each other in a straight line under the drive of the drive device 12, it can provide a pinching massage effect on the muscles on the left side of the lumbar spine (mainly the left erector spinae muscle). When the pair of second massage heads 141 on the right side moves closer to each other in a straight line under the drive of the drive device 12, it can provide a pinching massage effect on the muscles on the right side of the lumbar spine (mainly the right erector spinae muscle).

[0068] In the above design, each pair of first massage heads 131 and each pair of second massage heads 141 can reciprocate linearly along the length direction f1, which can simulate the massage of the erector spinae muscles on both sides of the lumbar spine, mimicking the pinching and massaging action of two fingers on the erector spinae muscles on both sides of the lumbar spine. This action is comfortable and the massage method is more in line with the symmetrical characteristics of the erector spinae muscles and structure on both sides of the lumbar spine, better meeting the user's lumbar massage needs. At the same time, 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 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.

[0069] It should be noted that the accompanying drawings shown in this application are merely illustrative examples of the first massage group 13 including a pair of first massage heads 131 spaced apart along the length direction f1 of the waist massager 100, and the second massage group 14 including a pair of second massage heads 141 spaced apart along the length direction f1 of the waist massager. This application does not limit the first massage group 13 to only including a pair of first massage heads 131 spaced apart along the length direction f1 of the waist massager, nor the second massage group 14 to only including a pair of second massage heads 141 spaced apart along the length direction f1 of the waist massager. In other implementations of this application, the first massage group 13 may also include two, three, or more pairs of first massage heads 131 spaced apart along the length direction f1 of the waist massager; similarly, the second massage group 14 may also include two, three, or more pairs of second massage heads 141 spaced apart along the length direction f1 of the waist massager. This application does not specifically limit this.

[0070] Please see Figure 3 As one embodiment, in each pair of first massage heads 131, at least one of the first massage heads 131 has at least one massage protrusion 1311 protruding from its skin-proximal surface. That is, in each pair of first massage heads 131, there may be one and only one first massage head 131 with a massage protrusion 1311 protruding from its skin-proximal surface, or there may be at least one massage protrusion 1311 protruding from the skin-proximal surface of both first massage heads 131. The massage protrusion 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, 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 f2 of the waist massager, thereby further increasing the massage depth of the first massage head 131 and improving the massage effect.

[0072] Similarly, in each pair of second massage heads 141, at least one second massage head 141 has at least one massage protrusion 1311 protruding from its skin-proximal surface. That is, in each pair of second massage heads 141, there can be exactly one second massage head 141 with a massage protrusion 1311 protruding from its skin-proximal surface, or both second massage heads 141 can have at least one massage protrusion 1311 protruding from their skin-proximal surfaces. The massage protrusion 1311 allows for better embedding within the skin, facilitating the second massage head 141 to lift the muscles during movement, thereby better converging the muscles for pinching massage and enhancing the massage effect.

[0073] Optionally, 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 f2 of the waist massager, thereby further increasing the massage depth of the second massage head 141 and improving the massage effect.

[0074] As one embodiment, the first massage group 13 and the second massage group 14 can be symmetrically arranged about the drive device 12, and at least one group of the first massage heads 131 and the second massage heads 141 symmetrically arranged about the drive device 12 has a plurality of massage protrusions 1311 protruding from the skin surface, and the plurality of massage protrusions 1311 are arranged at intervals along the width direction f2 of the waist massager. For example, in Figure 3 and Figure 4 In the illustrated embodiment, the first massage head 131 and the second massage head 141 located in the middle are symmetrically arranged with respect to the drive device 12, and both of them have a plurality of massage protrusions 1311 arranged at intervals along the width direction f2 of the waist massager on their skin-proximal surfaces.

[0075] This allows for better muscle gathering and pinching massage using multiple massage protrusions 1311, while simultaneously producing symmetrical pinching massage movements. This simulates the pinching massage effect on the erector spinae muscles of different parts on both sides of the lumbar spine, fully matching the real massage effect of the human body. Furthermore, the multiple massage protrusions 1311 can increase the massage intensity. With greater massage intensity, the pinching massage method is more in line with the characteristics of the erector spinae muscles and structure on both sides of the lumbar spine, resulting in a better massage effect.

[0076] In this application, for ease of description, such as Figure 4As shown, in each pair of first massage heads 131, the massage head closer to the drive device 12 is defined as the first inner massage head 131a, and the massage head farther from the drive device 12 is defined as the first outer massage head 131b. Similarly, in each pair of second massage heads 141, the massage head closer to the drive device 12 is defined as the second inner massage head 141a, and the massage head farther from the drive device 12 is defined as the second outer massage head 141b. It is understood that the above definitions are only for the convenience of this application and should not be used to limit the scope of protection of this application.

[0077] As one embodiment, the first inner massage head 131a has a first side surface 131a1 facing the first outer massage head 131b, and the first outer massage head 131b has a second side surface 131b1 facing the first inner massage head 131a. The middle portion of one of the first side surface 131a1 and the second side surface 131b1 is recessed inward to form a first recessed portion 1312, and the middle portion of the other of the first side surface 131a1 and the second side surface 131b1 protrudes outward to form a first protruding portion 1313.

[0078] That is, when the middle part of the first side surface 131a1 is concave inward to form the first recessed portion 1312, the middle part of the second side surface 131b1 protrudes outward to form the first protruding portion 1313, and when the middle part of the first side surface 131a1 protrudes outward to form the first protruding portion 1313, the middle part of the second side surface 131b1 is concave inward to form the first recessed portion 1312. Thus, when the first inner massage head 131a and the first outer massage head 131b are relatively close, the first recessed portion 1312 can be used to gather the muscles. After the muscles are gathered in the first recessed portion 1312, the first protruding portion 1313 can perform pinching massage on them, thereby further improving the pinching massage effect of the first massage group 13.

[0079] Similarly, the second inner massage head 141a has a third side 141a1 facing the second outer massage head 141b, and the second outer massage head 141b has a fourth side 141b1 facing the second inner massage head 141a. The middle portion of one of the third side 141a1 and the fourth side 141b1 is recessed inward to form a second recess 1411, and the middle portion of the other of the third side 141a1 and the fourth side 141b1 is protruded outward to form a second protrusion 1412.

[0080] That is, when the middle of the third side surface 141a1 is concave inward to form the second concave portion 1411, the middle of the fourth side surface 141b1 protrudes outward to form the second protruding portion 1412, and when the middle of the third side surface 141a1 protrudes outward to form the second protruding portion 1412, the middle of the fourth side surface 141b1 is concave inward to form the second concave portion 1411. Thus, when the second inner massage head 141a and the second outer massage head 141b are relatively close, the second concave portion 1411 can gather the muscles, and after the muscles are gathered in the second concave portion 1411, the second protruding portion 1412 can perform pinching massage, thereby further improving the pinching massage effect of the second massage group 14.

[0081] As one embodiment, the two first massage heads 131 in each pair move at the same speed along the length direction f1 of the waist massager. By making the two first massage heads 131 in each pair move at the same speed along the length direction f1 of the waist massager, the two first massage heads 131 can maintain the same massage force during pinching massage, thereby simulating the effect of two fingers applying the same force during pinching massage, which helps to improve the massage effect.

[0082] Similarly, the two second massage heads 141 in each pair move at the same speed along the length f1 of the waist massager. By making the two second massage heads 141 in each pair move at the same speed along the length f1 of the waist massager, the two second massage heads 141 can maintain the same massage force, thereby simulating the effect of two fingers applying the same force during a pinching massage, which helps to improve the massage effect.

[0083] Especially when the movement speed of each first massage head 131 along the length direction f1 of the lumbar massager is the same, and the movement speed of each second massage head 141 along the length direction f1 of the lumbar massager is the same, and the movement speed of the second massage head 141 and the first massage head 131 along the length direction f1 of the lumbar massager is the same, it can not only maintain the consistency of the massage force on both sides of the lumbar spine, but also allow the adjacent second massage head 141 and the first massage head 131 (that is, the first massage head 131 and the second massage head 141 closest to the drive device 12) to maintain the same massage force during the pinching massage, so as to achieve the effect of simulating the pinching massage when two fingers of a human hand apply the same force, thereby improving the massage effect on the muscles near the lumbar spine.

[0084] As one embodiment, the two first massage heads 131 in each pair move the same distance along the length direction f1 of the waist massager. This ensures that when the two first massage heads 131 approach each other for pinching massage, the two first massage heads 131 in each pair move at the same speed along the length direction f1 of the waist massager. This allows the two first massage heads 131 to maintain the same massage force, thereby achieving the effect of simulating the pinching massage of two fingers when pinching, which helps to improve the massage effect.

[0085] Similarly, the two second massage heads 141 in each pair move the same distance along the length direction f1 of the waist massager. This ensures that when the two second massage heads 141 approach each other for pinching massage, the two second massage heads 141 in each pair move at the same speed along the length direction f1 of the waist massager. This allows the two second massage heads 141 to maintain the same massage force, thereby simulating the effect of pinching massage when two fingers of a human hand apply the same force, which helps to improve the massage effect.

[0086] Especially when the movement distance of each first massage head 131 along the length direction f1 of the waist massager is the same, and the movement distance of each second massage head 141 along the length direction f1 of the waist massager is the same, and the movement distance of the second massage head 141 and the first massage head 131 along the length direction f1 of the waist massager is the same, the movement distance of the massage heads on both sides of the spine is the same during the pinching massage, which helps to maintain the consistency of the massage on both sides of the spine.

[0087] As one example, such as Figure 5 As shown, both the first massage head 131 and the second massage head 141 are elongated strips extending along the width direction f2 of the waist massager. Along the width direction f2 of the waist massager, the first massage head 131 and / or the second massage head 141 are both arc-shaped with the middle convex inward and the sides curving outward. That is, along the width direction f2 of the waist massager, the first massage head 131 and the second massage head 141 are both arc-shaped with the middle convex towards the massage area and the sides curving away from the massage area, so as to fit against the waist of the human body.

[0088] Because the side of the human waist has an inward-curving arc, the first massage head 131 and / or the second massage head 141 are designed to have a more prominent center, so that the center of the first massage head 131 and / or the second massage head 141 can fit perfectly with the shape of the middle 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 first massage head 131 and / or the second massage head 141 can better fit the massage area, have a better fit with the human waist, conform to ergonomic design, and better fit the curvature of the human waist, thus improving the user's comfort.

[0089] Please see Figure 6 When the first massage group 13 in this application includes a pair of first massage heads 131 and the second massage group 14 includes a pair of second massage heads 141, the height h1 of the protrusion of the pair of first massage heads 131 and second massage heads 141 arranged in the middle relative to the core housing 11 is higher than the height h2 of the protrusion of the other pair of first massage heads 131 and second massage heads 141 relative to the core housing 11. In other words, for ease of description, the pair of first massage heads 131 in the first massage group 13 are defined as the first sub-massage head 131c and the second sub-massage head 131d, and the pair of second massage heads 141 in the second massage group 14 are defined as the third sub-massage head 141c and the fourth sub-massage head 141d. The first sub-massage head 131c, the second sub-massage head 131d, the third sub-massage head 141c and the fourth sub-massage head 141d are arranged sequentially along the length direction f1 of the waist massager. The height h1 of the second sub-massage head 131d and the third sub-massage head 141c protruding relative to the core housing 11 is higher than the height h2 of the first sub-massage head 131c and the fourth sub-massage head 141d protruding relative to the core housing 11.

[0090] Because the muscles on the inner side of the waist are harder than those on the outer side—that is, the inner muscles closer to the spine are harder than the outer muscles farther from the spine—when the massage mechanism 10 is worn on the waist, the second sub-massage head 131d and the third sub-massage head 141c, which are arranged in the middle, are mainly used to massage the inner muscles close to the spine. By setting the second sub-massage head 131d and the third sub-massage head 141c to protrude more from the first sub-massage head 131c and the fourth sub-massage head 141d in the direction close to the skin away from the mechanism housing 11, the second sub-massage head 131d and the third sub-massage head 141c can make deeper contact with the inner muscles close to the spine, thereby ensuring the massage effect of the second sub-massage head 131d and the third sub-massage head 141c.

[0091] Please see Figure 4 , Figure 7 , Figure 8 and Figure 9 ,in, Figure 4It 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 7 The illustration 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. As one embodiment, at least one first massage head 131 is connected to a first rotation axis 1314 extending along the thickness direction f3 of the waist massager at its middle portion. This first rotation axis 1314 is connected to a drive device 12. When at least one first massage head 131 moves along the length direction f1 of the waist massager, the two ends of the at least one first massage head 131 in the width direction f2 of the waist massager reciprocate around the first rotation axis 1314. This allows at least one first massage head 131 to reciprocate around the first rotation axis 1314 located at the middle of the first massage head 131 while the pair of first massage heads 131 are performing linear reciprocating motion along the length direction f1 of the waist massager. This enriches the massage modes of the first massage heads 131, thereby enhancing the richness of the massage sensation and improving the massage effect.

[0092] Similarly, at least one second massage head 141 is connected to a second rotating shaft 1413 extending along the thickness direction f3 of the waist massager at its middle portion. This second rotating shaft 1413 is connected to the drive device 12. When at least one second massage head 141 moves along the length direction f1 of the waist massager, both ends of the at least one second massage head 141 in the width direction f2 of the waist massager reciprocate around the second rotating shaft 1413. In this way, while a pair of second massage heads 141 reciprocate linearly along the length direction f1 of the waist massager, at least one second massage head 141 in the width direction f2 of the waist massager reciprocates around the second rotating shaft 1413 located in the middle of the second massage head 141. This enriches the massage modes of the second massage heads 141, thereby enhancing the richness of the massage sensation and improving the massage effect.

[0093] In this application, in order to enable the drive device 12 to drive the massage head to move linearly along the waist along the length direction f1 of the massager, so as to make adjacent massage heads move closer or further apart along the waist along the length direction f1 of the massager, 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.

[0094] Please see Figure 9 and Figure 10 In one embodiment, the housing 11 of the mechanism 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 f1 of the waist massager, and the first groove group 111 includes at least a pair of first strip grooves 1111 spaced apart along the length direction f1 of the waist massager, each first strip groove 1111 extending along the length direction f1 of the waist massager, and the second groove group 112 includes at least a pair of second strip grooves 1121 spaced apart along the length direction f1 of the waist massager, each second strip groove 1121 extending along the length direction f1 of the waist massager.

[0095] 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.

[0096] The drive motor 121 in this application is mounted on the core housing 11, and the drive motor 121 has a worm gear 1211 located inside the core housing 11. The worm gear 1211 extends along the width direction f2 of the waist massager, and the first massage group 13 and the second massage group 14 are respectively located on both sides of the worm gear 1211 in the length direction f1 of the waist massager.

[0097] Optionally, the drive motor 121 can be located outside or inside the housing 11. The first massage group 13 and the second massage group 14 mentioned above can be symmetrically arranged about the drive device 12; in fact, the first massage group 13 and the second massage group 14 can be symmetrically arranged about the axis of the worm gear 1211.

[0098] The first transmission gear set 122 in this application is located inside the core housing 11 and on one side of the worm gear 1211 along the length direction f1 of the waist massager. The first transmission gear set 122 is meshed with the worm gear 1211. The first transmission gear set 122 includes at least one pair of meshing first output gears 1221. The end faces of the two first output gears 1221 in each pair of first output gears 1221 are respectively provided with first eccentric connecting portions 1222 that are eccentrically positioned to the center of the first output gear 1221. The two first eccentric connecting portions 1222 in each pair of first output gears 1221 are respectively connected to the first massage head 131 in each pair of first massage heads. Two first massage heads 131 are connected, and two first eccentric connecting parts 1222 in each pair of first output gears 1221 are respectively inserted into the two first strip grooves 1111 in each pair of first strip grooves 1111. Thus, 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 parts 1222, driven by the first output gear 1221 and limited by the first strip grooves 1111, move back and forth along the length direction f1 of the waist massager, thereby driving the first massage head 131 to move back and forth along the length direction f1 of the waist massager.

[0099] The second transmission gear set 123 in this application is located inside the core housing 11 and on one side of the worm gear 1211 along the length direction f1 of the waist massager. The second transmission gear set 123 is meshed with the worm gear 1211. The second transmission gear set 123 includes at least one pair of meshing second output gears 1231. The end faces of the two second output gears 1231 in each pair of second output gears 1231 are respectively provided with second eccentric connecting portions 1232 that are eccentrically positioned to the center of the second output gear 1231. The two second eccentric connecting portions 1232 in each pair of second output gears 1231 are respectively connected to the second massage head 141 in each pair of second massage heads. Two second massage heads 141 are connected, and two second eccentric connecting parts 1232 in each pair of second output gears 1231 are respectively inserted into two second strip grooves 1121 in each pair of second strip grooves 1121. Thus, 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 parts 1232, driven by the second output gear 1231 and limited by the second strip groove 1121, move back and forth along the length direction f1 of the waist massager, thereby driving the second massage head 141 to move back and forth along the length direction f1 of the waist massager.

[0100] Through the above design, the linear reciprocating motion of each massage head in the first massage group 13 and the second massage group 14 along the length direction f1 of the waist massager 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 f1 of the waist massager. This makes the structure of the massage mechanism 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.

[0101] As one embodiment, in each pair of first output gears 1221, at least one first eccentric connecting portion 1222 includes a first swing arm 1223. That is, in each pair of first output gears 1221, there may be one and only one first eccentric connecting portion 1222 including a first swing arm 1223, or both first eccentric connecting portions 1222 may include 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 and the first massage head 131 massage the waist. The middle connection in the width direction f2 of the massager can be a connection between the first connecting shaft 1224 and the first rotating shaft 1314. The first connecting shaft 1224 passes through the first strip groove 1111 and can move relative to the first strip groove 1111 along the length direction f1 of the waist massager 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 and rotate around the first connecting shaft 1224 while moving along the length direction f1 of the waist massager, that is, to reciprocate and rotate around the first rotating shaft 1314.

[0102] 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 f1 of the waist massager 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 f1 of the waist massager while rotating back and forth around the first rotating shaft 1314.

[0103] Similarly, in each pair of second output gears 1231, at least one second eccentric connecting portion 1232 includes a second swing arm 1233. That is, in each pair of second output gears 1231, there may be one and only one second eccentric connecting portion 1232 including a second swing arm 1233, or both second eccentric connecting portions 1232 may include 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 and the second massage head 141 are connected in the waist massager. The middle connection in the width direction f2 can be the connection between the second connecting shaft 1234 and the second rotating shaft 1413. The second connecting shaft 1234 passes through the second strip groove 1121 and can move relative to the second strip groove 1121 along the length direction f1 of the waist massager under the drive of the second swing arm 1233. It can also rotate relative to the second strip groove 1121 to drive the second massage head 141 to reciprocate around the second connecting shaft 1234 while moving along the length direction f1 of the waist massager, that is, to reciprocate around the second rotating shaft 1413.

[0104] 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 f1 of the waist massager 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 f1 of the waist massager while rotating back and forth around the second rotating shaft 1413.

[0105] 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 massage mechanism 10 more compact, which is conducive to miniaturization design and cost savings.

[0106] Understandably, when the reciprocating linear motion and reciprocating rotational motion of a massage head (i.e., the first massage head 131 and the second massage head 141) 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 121), 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 1222 and the second eccentric connecting part 1232), and the output shaft of the motor is connected to the rotation shaft of the massage head (i.e., the first rotation shaft 1314 and the second rotation shaft 1413) to drive the massage head to perform reciprocating rotational motion around the rotation shaft.

[0107] 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.

[0108] 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.

[0109] 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.

[0110] 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.

[0111] 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.

[0112] 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 massage mechanism, characterized in that, Applied to a lumbar massager, the 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 waist massager, includes at least one pair of first massage heads spaced apart along the length of the waist massager. Under the driving action of the driving device, two of the first massage heads in each pair move closer to or further away from each other along the length of the waist massager. 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 waist massager. The second massage group includes at least one pair of second massage heads spaced apart along the length of the waist massager. Under the driving action of the drive device, the two second massage heads in each pair move closer to or further away from each other along the length of the waist massager.

2. The massage mechanism according to claim 1, characterized in that, At least one of the first massage heads in each pair has at least one massage protrusion on its proximal surface, and / or at least one of the second massage heads in each pair has at least one massage protrusion on its proximal surface.

3. The massage mechanism according to claim 2, characterized in that, The first massage group and the second massage group are symmetrically arranged with respect to the driving device. At least one group of the first massage head and the second massage head, which are symmetrically arranged with respect to the driving device, have a plurality of massage protrusions on their skin-proximal surfaces. The plurality of massage protrusions are arranged at intervals along the width direction of the waist massager.

4. The massage mechanism according to claim 1, characterized in that, In each pair of the first massage heads, the massage head closer to the drive device is the first inner massage head, and the massage head further away from the drive device is the first outer massage head. The first inner massage head has a first side facing the first outer massage head, and the first outer massage head has a second side facing the first inner massage head. The middle portion of one of the first and second sides is recessed inward to form a first recess, and the middle portion of the other of the first and second sides protrudes outward to form a first protrusion; and / or, The massage head closer to the drive device in each pair of second massage heads is the second inner massage head, and the massage head further away from the drive device is the second outer massage head. The second inner massage head has a third side facing the second outer massage head, and the second outer massage head has a fourth side facing the second inner massage head. The middle portion of one of the third side and the fourth side is recessed inward to form a second recess, and the middle portion of the other of the third side and the fourth side is protruded outward to form a second protrusion.

5. The massage mechanism according to claim 1, 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 waist massager at its middle portion. The first rotating shaft is connected to the drive device. When the at least one of the first massage heads moves along the length direction of the waist massager, the at least one of the first massage heads reciprocates around the first rotating shaft at both ends in the width direction of the waist massager; and / or, At least one of the second massage heads is connected to a second rotating shaft extending along the thickness direction of the waist massager 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 waist massager, at least one of the second massage heads reciprocates around the second rotating shaft at both ends in the width direction of the waist massager.

6. The massage mechanism according to claim 1, characterized in that, The two first massage heads in each pair move at the same speed along the length of the waist massager; and / or... The two second massage heads in each pair move at the same speed along the length of the waist massager.

7. The massage mechanism according to claim 1, characterized in that, The two first massage heads in each pair of first massage heads move an equal distance along the length of the waist massager; and / or... The two second massage heads in each pair move an equal distance along the length of the waist massager.

8. The massage mechanism according to any one of claims 1-7, characterized in that, The housing of the mechanism is provided with a first groove group and a second groove group, the first groove group and the second groove group being respectively located on both sides of the driving device along the length direction of the waist massager. The first groove group includes at least a pair of first strip grooves spaced apart along the length direction of the waist massager, each of the first strip grooves extending along the length direction of the waist massager. The second groove group includes at least a pair of second strip grooves spaced apart along the length direction of the waist massager, each of the second strip grooves extending along the length direction of the waist massager. The driving device includes: A drive motor is mounted on the core housing and has a worm gear located inside the core housing. The worm gear extends along the width direction of the waist massager, and the first massage group and the second massage group are respectively located on both sides of the worm gear in the length direction of the waist massager. A first transmission gear set is located inside the core housing and on one side of the worm gear along the length of the waist massager. The first transmission gear set is meshed with the worm gear. The first transmission gear set includes at least one pair of meshing first output gears. The end faces of two of the first output gears in each pair are respectively provided with a first eccentric connecting portion eccentrically positioned to the center of the first output gear. The two first eccentric connecting portions of each pair of first output gears are respectively connected to two of the two first massage heads in each pair of first massage heads, and the two first eccentric connecting portions of each pair of first output gears pass through two of the two first slots in each pair of first slots. The second transmission gear set is located inside the core housing and on one side of the worm gear along the length of the waist massager. The second transmission gear set is meshed with the worm gear. The second transmission gear set includes at least one pair of meshing second output gears. The end faces of the two second output gears in each pair are respectively provided with a second eccentric connection portion that is eccentrically positioned to the center of the second output gear. The two second eccentric connection portions in each pair of second output gears are respectively connected to the two second massage heads in each pair of second massage heads. The two second eccentric connection portions in each pair of second output gears are respectively inserted into the two second grooves in each pair of second grooves.

9. The massage mechanism according to claim 8, characterized in that, In each pair of first output gears, at least one of the first eccentric connecting parts includes a first swing arm. One end of the first swing arm is eccentrically connected to the first output gear, and the other end of the first swing arm is connected to a first connecting shaft. The first connecting shaft is connected to the first massage head at the middle of the width direction of the waist massager. The first connecting shaft passes through the first strip groove, and the first connecting shaft can move relative to the first strip groove along the length direction of the waist massager under the drive of the first swing arm, and rotate relative to the first strip groove, so as to drive the first massage head to reciprocate and rotate around the first connecting shaft while moving along the length direction of the waist massager. And / or, In each pair of second output gears, at least one second eccentric connecting part includes a second swing arm. One end of the second swing arm is eccentrically connected to the second output gear, and the other end of the second swing arm is connected to a second connecting shaft. The second connecting shaft is connected to the second massage head at the middle of the width direction of the waist massager. The second connecting shaft passes through the second strip groove, and the second connecting shaft can move relative to the second strip groove along the length direction of the waist massager under the drive of the second swing arm, and rotate relative to the second strip groove, so as to drive the second massage head to reciprocate and rotate around the second connecting shaft while moving along the length direction of the waist massager.

10. The massage mechanism according to claim 8, characterized in that, A first reduction gear set is provided between the worm and the first transmission gear set. The input end of the first reduction gear set is meshed with the worm, and the output end of the first reduction gear set is meshed with the first transmission gear set; and / or, A second reduction gear set is provided between the worm and the second transmission gear set. The input end of the second reduction gear set is meshed with the worm, and the output end of the second reduction gear is meshed with the second transmission gear set.

11. The massage mechanism according to any one of claims 1-7, characterized in that, The first massage group includes a pair of first massage heads, and the second massage group includes a pair of second massage heads. The height of the pair of first massage heads and second massage heads arranged in the middle relative to the core housing is higher than the height of the other pair of first massage heads and second massage heads relative to the core housing.

12. The 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 waist massager. Along the width direction of the waist massager, the first massage head and / or the second massage head are arc-shaped, with the middle convex inward and the sides curving outward, so as to fit the waist of the human body.

13. A waist massager, characterized in that, The waist massager includes a wearable component and a massage mechanism as described in any one of claims 1-12, the massage mechanism being mounted on the wearable component, the wearable component being used to wear the massage mechanism on the waist of a human body.

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