Adjustable shoulder and neck massager

Abstract

An adjustable shoulder and neck massager comprises a massage shell, a transmission structure and a massage arm set, the transmission structure is connected into the massage shell, the massage arm set is provided with a first massage arm and a second massage arm, the first massage arm comprises a first massage head set, a first trapezius massage module and a first massage connecting rod assembly, and the second massage arm comprises a second massage head set and a second trapezius massage module. The second massage arm comprises a second massage head set, a second trapezius massage module and a second massage connecting rod assembly, the first massage head set, the first trapezius massage module and the second massage head set, and the second trapezius massage module is rotationally connected to the first massage connecting rod assembly and the second massage connecting rod assembly respectively; the distance between the two modules can be adjusted by rotating the positions, facing the neck of the human body, of the first massage head set and the second massage head set, and the first massage connecting rod assembly and the second massage connecting rod assembly are connected to the transmission structure and drive the first massage arm and the second massage arm to synchronously swing for massage. According to the scheme, the adjustable double-massage-head-set structural design is adopted, and the effect of improving the user experience feeling is achieved.

Description

Technical Field

[0001] The utility model belongs to the technical field of massagers, and particularly relates to an adjustable neck and shoulder massager. Background Technique

[0002] In the existing related technologies, neck massagers mostly use the kneading massage method to massage the corresponding parts of the human body. However, most of the massage heads of the existing neck massagers are general and fixed, and cannot be adjusted according to the body structures of different users, resulting in poor adaptability, which affects the massage effect of the massager and the massage experience of users. Therefore, the utility model proposes a new solution for the above technical problems. Content of the Utility Model

[0003] The purpose of the utility model is to provide an adjustable neck and shoulder massager, which adopts an adjustable double massage head group structure design, achieving the effects of effectively relieving fatigue, improving the massage effect of the neck and shoulder massager, enhancing the applicability of the neck and shoulder massager, and improving the user experience.

[0004] Based on this, the utility model provides an adjustable neck and shoulder massager, including:

[0005] A massage housing;

[0006] A transmission structure, which is connected inside the massage housing;

[0007] A massage arm group, which is connected to the massage housing. The massage arm group is provided with a first massage arm and a second massage arm. The first massage arm includes a first massage head group, a first trapezius muscle massage module, and a first massage link assembly. The second massage arm includes a second massage head group, a second trapezius muscle massage module, and a second massage link assembly. The first massage head group and the first trapezius muscle massage module are respectively rotatably connected to the first massage link assembly, and the second massage head group and the second trapezius muscle massage module are respectively rotatably connected to the second massage link assembly. By respectively rotating the positions of the first massage head group and the second massage head group towards the human neck, the distance between the two modules can be adjusted. The first massage link assembly and the second massage link assembly are respectively connected to the transmission structure, and the transmission structure drives the first massage link assembly and the second massage link assembly to swing synchronously, thereby driving the first massage head group, the first trapezius muscle massage module, the second massage head group, and the second trapezius muscle massage module to swing synchronously for massage.

[0008] An adjustable shoulder and neck massager as described above, wherein the first massage link assembly is provided with a first upper link and a first swing member, and the first massage head group is provided with a first upper massage head and a first middle massage head rotatably connected to the first upper link. By rotating the first upper massage head or the first middle massage head, the side surface distance between the two massage heads on both sides in the same direction facing the human neck can be adjusted; the second massage link assembly is provided with a second upper link and a second swing member, and the second massage head group is provided with a second upper massage head and a second middle massage head rotatably connected to the second upper link. By respectively adjusting the first upper massage head and the second upper massage head or the first middle massage head and the second middle massage head facing the side surface of the human neck, the upper two module distances or the middle two module distances in the two module distances can be respectively adjusted. The first trapezius muscle massage module is connected to the first swing member and swings synchronously with the first massage head group, and the second trapezius muscle massage module is connected to the second swing member and swings synchronously with the second massage head group.

[0009] An adjustable shoulder and neck massager as described above, wherein the first trapezius muscle massage module includes a first adjustment component and a first lower massage head. The first adjustment component is connected to the first swing member, and the first lower massage head is connected to the first adjustment component, and the elongation amount of the first lower massage head towards one end of the human trapezius muscle is adjusted through the first adjustment component.

[0010] An adjustable shoulder and neck massager as described above, wherein the transmission structure is further provided with a gear structure. The gear structure is connected inside the massage housing, and the gear structure is provided with a first-stage transmission gear set, a second-stage transmission gear set, and a third-stage transmission gear set. The first-stage transmission gear set is rotatably connected to the drive motor, the second-stage transmission gear set is rotatably connected to the first-stage transmission gear set, and the third-stage transmission gear set is rotatably connected to the second-stage transmission gear set. Moreover, the third-stage transmission gear set is provided with a first output end and a second output end that rotate synchronously. The first massage link assembly and the second massage link assembly are respectively connected to the first output end and the second output end and swing synchronously, thereby driving the first massage head group, the first trapezius muscle massage module and the second massage head group, the second trapezius muscle massage module to swing synchronously for massage.

[0011] An adjustable shoulder and neck massager as described above, wherein the first upper connecting rod is provided with a first upper massage head mounting position and a first middle massage head mounting position; the second upper connecting rod is provided with a second upper massage head mounting position and a second middle massage head mounting position; the first upper massage head includes a first upper massage head body and a first upper massage head clamping column, the first upper massage head clamping column is rotatably connected to the first upper massage head mounting position, the first upper massage head body is eccentrically connected to the first upper massage head clamping column and can rotate with the first upper massage head clamping column; the second upper massage head includes a second upper massage head body and a second upper massage head clamping column, the second upper massage head clamping column is rotatably connected to the second upper massage head mounting position, the second upper massage head body is eccentrically connected to the second upper massage head clamping column and can rotate with the second upper massage head clamping column; by rotating the side surface of the first upper massage head body or the second upper massage head body facing the human neck, the distance between the upper two modules can be adjusted;

[0012] The first middle massage head includes a first middle massage head body and a first middle massage head clamping column, the first middle massage head clamping column is rotatably connected to the first middle massage head mounting position, the first middle massage head body is eccentrically connected to the first middle massage head clamping column and can rotate with the first middle massage head clamping column; the second middle massage head includes a second middle massage head body and a second middle massage head clamping column, the second middle massage head clamping column is rotatably connected to the second middle massage head mounting position, the second middle massage head body is eccentrically connected to the second middle massage head clamping column and can rotate with the second middle massage head clamping column; by rotating the side surface of the first middle massage head body or the second middle massage head body facing the human neck, the distance between the middle two modules can be adjusted.

[0013] An adjustable shoulder and neck massager as described above, wherein the first adjustment component includes a first elongation component body, a first length adjustment block, and a first adjustment component. The first elongation component body is connected to the first swing member for swinging. The first length adjustment block is connected inside the first elongation component body. The first lower massage head is provided on the first length adjustment block. The first adjustment component is rotatably provided on the first elongation component body and is in transmission cooperation with the first length adjustment block. By rotating the first adjustment component forward, the first length adjustment block can be driven to extend outward to increase the elongation amount, and a first limiting component for restricting the reverse rotation of the first adjustment component is further provided on the first elongation component body;

[0014] The first lower massage head includes a first lower massage head connecting member and a first lower massage head body. The first lower massage head connecting member is fixedly connected to the first length adjustment block. The first lower massage head body is connected to the first lower massage head connecting member and can swing with the first length adjustment block for massage.

[0015] An adjustable neck and shoulder massager as described above, wherein the first-stage transmission gear set is provided with a first-stage connecting rod and a first-stage gear. The first-stage gear is connected to the massage housing through the first-stage connecting rod. The middle of the first-stage gear is provided with motor meshing teeth, and the two sides are provided with first-stage transmission meshing teeth. The driving motor is rotatably connected to the motor meshing teeth, and the second-stage transmission gear set meshes with the first-stage transmission meshing teeth to rotate; the second-stage transmission gear set is arranged above the first-stage transmission gear set, and the second-stage transmission gear set is provided with a second-stage connecting rod and a second-stage gear. The second-stage gears are relatively arranged on both sides of the second-stage connecting rod and are connected to the massage housing through the second-stage connecting rod. The second-stage gears are provided with second-stage meshing teeth and second-stage transmission meshing teeth. The second-stage meshing teeth mesh and transmit with the first-stage transmission meshing teeth, and the third-stage transmission gear set meshes and transmits with the second-stage transmission meshing teeth; the third-stage transmission gear set is arranged below the second-stage transmission gear set. The third-stage transmission gear set is provided with a third-stage connecting rod and a third-stage gear. The first output end and the second output end are arranged on both sides of the third-stage connecting rod. The first massage connecting rod assembly and the second massage connecting rod assembly are respectively connected to the third-stage connecting rod. The third-stage gear is fixedly connected to the third-stage connecting rod, and the third-stage gear is provided with third-stage meshing teeth. The third-stage meshing teeth mesh and transmit with the second-stage transmission meshing teeth, and can drive the massage arm group to swing synchronously.

[0016] An adjustable neck and shoulder massager as described above, wherein the first massage connecting rod assembly further includes a first swing connecting rod assembly. The first swing connecting rod assembly is connected to the first output end for swinging. The first swing connecting rod assembly includes a first swing rotating member, a first upper rod fastener, and a first lower rod fastener. The first upper connecting rod is connected to the first swing rotating member and is fastened by the first upper rod fastener for swinging; the first adjustment assembly is connected to one end of the first swing member. The other end of the first swing member is connected to the other side of the first swing rotating member relative to the first upper connecting rod and is fastened by the first lower rod fastener for swinging; the first swing rotating member is eccentrically connected to the first output end, and can make the first upper massage head, the first middle massage head, and the first lower massage head swing synchronously within a certain angle range.

[0017] An adjustable shoulder and neck massager as described above, the second trapezius muscle massage module includes a second adjustment component and a second lower massage head. The second adjustment component is connected to the second swinging member, and the second lower massage head is connected to the second adjustment component. The second adjustment component includes a second elongation member body, a second length adjustment block, and a second adjustment member. The second elongation member body is connected to the second swinging member for swinging. The second length adjustment block is connected within the second elongation member body. The second lower massage head is provided on the second length adjustment block. The second adjustment member is rotatably provided on the second elongation member body and is in transmission cooperation with the second length adjustment block. By rotating the second adjustment member forward, the second length adjustment block can be driven to extend outward, and a second limiting component for restricting the reverse rotation of the second adjustment member is also provided on the second elongation member body. The second lower massage head includes a second lower massage head connecting member and a second lower massage head body. The second lower massage head connecting member is fixedly connected to the second length adjustment block, and the second lower massage head body is connected to the second lower massage head connecting member and can swing with the second length adjustment block for massage.

[0018] The second massage link assembly further includes a second swinging link assembly. The second swinging link assembly is connected to the second output end for swinging. The second swinging link assembly includes a second swinging rotating member, a second upper rod fastener, and a second lower rod fastener. The second upper connecting rod is connected to the second swinging rotating member and is fastened by the second upper rod fastener for swinging. The second adjustment component is connected to one end of the second swinging member. The other end of the second swinging member is connected to the other side of the second swinging rotating member relative to the second upper connecting rod and is fastened by the second lower rod fastener for swinging. The second swinging rotating member is eccentrically connected to the second output end, enabling the second upper massage head, the second middle massage head, and the second lower massage head to swing synchronously within a certain angle range.

[0019] An adjustable shoulder and neck massager as described above, the massage housing is provided with an upper housing and a lower housing. The upper housing is provided with a locking position. The lower housing is provided with a locking post, a motor mounting position, a first-stage gear mounting position, a second-stage gear mounting position, and a third-stage gear mounting position. The drive motor is fixedly connected to the motor mounting position. The first-stage transmission gear set, the second-stage transmission gear set, and the third-stage transmission gear set are respectively connected to the first-stage gear mounting position, the second-stage gear mounting position, and the third-stage gear mounting position. The upper housing and the lower housing are connected through the locking position and the locking post to lock the components within the massage housing.

[0020] Implementing the embodiments of the present invention has the following beneficial effects:

[0021] This solution adopts a structure design of adjustable double massage head groups. The first massage head group and the second massage head group are respectively rotatably connected to the first massage link assembly and the second massage link assembly. By adjusting the positions of the first massage head group and the second massage head group facing the human neck, the distance between the two modules between the two bilateral modules is adjusted to adapt to the body structures of different users. On the one hand, the adjustable massage head group combined with the trapezius muscle massage module can achieve targeted massage of the human neck and trapezius muscle. On the other hand, the double massage head group and the double trapezius muscle massage modules are connected to the transmission structure through the double massage link assembly, realizing synchronous swinging massage on both sides, effectively simulating the massage effect of human hands, achieving the effects of effectively relieving fatigue, improving the massage effect of the shoulder and neck massager, enhancing the applicability of the shoulder and neck massager, and improving the user experience. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the following will briefly introduce the drawings required for the description of the embodiments. Obviously, the drawings in the following description are only some embodiments of the present application. For those of ordinary skill in the art, without creative efforts, other drawings can be obtained based on these drawings.

[0023] Figure 1 is a schematic structural diagram of the present utility model;

[0024] Figure 2 is an exploded view of a part of the present utility model;

[0025] Figure 3 is the enlarged view of part M corresponding to Figure 2 ;

[0026] Figure 4 is an exploded view of the structure of the first massage arm;

[0027] Figure 5 is the enlarged view of part A corresponding to Figure 4 ;

[0028] Figure 6 is the enlarged view of part B corresponding to Figure 4 in another direction;

[0029] Figure 7 is the enlarged view of part B corresponding to Figure 6 ;

[0030] Figure 8 is an exploded view of the structure of the first trapezius muscle massage module;

[0031] Figure 9 is the enlarged view of part C corresponding to Figure 8 ;

[0032] Figure 10 is the enlarged view of part C corresponding toFigure 8 N-part enlarged view;

[0033] Figure 11 corresponding to Figure 8 structural schematic diagram in another direction;

[0034] Figure 12 corresponding to Figure 11 G-part enlarged view;

[0035] Figure 13 corresponding to Figure 11 K-part enlarged view;

[0036] Figure 14 exploded view with some structures of the present utility model hidden;

[0037] Figure 15 corresponding to Figure 14 R-part enlarged view;

[0038] Figure 16 structural schematic diagram of the first massage head group connected to the first upper connecting rod;

[0039] Figure 17 corresponding to Figure 16 P-part enlarged view;

[0040] Figure 18 corresponding to Figure 16 Q-part enlarged view;

[0041] Figure 19 structural schematic diagram of the upper housing;

[0042] Figure 20 structural schematic diagram of the lower housing;

[0043] Figure 21 structural schematic diagram corresponding to the maximum distance between two side faces, the minimum distance between two upper modules, and the maximum distance between two middle modules;

[0044] Figure 22 corresponding to Figure 21 structural schematic diagram in another direction;

[0045] Figure 23 structural schematic diagram corresponding to the minimum distance between two side faces, the maximum distance between two upper modules, and the minimum distance between two middle modules;

[0046] Figure 24 structural view corresponding to the minimum elongation;

[0047] Figure 25 structural view corresponding to the maximum elongation.

[0048] In the figure: 1 - First massage arm, 11 - First massage head group, 111 - First upper massage head, 1111 - First upper massage head body, 11111 - First upper clamping post hole, 11112 - First upper clamping post through slot, 1112 - First upper massage head clamping post, 11121 - Upper clamping post inclined plane block, 1113 - First upper limiting structure, 112 - First middle massage head, 1121 - First middle massage head body, 11211 - First middle clamping post hole, 11212 - First middle clamping post through slot, 1122 - First middle massage head clamping post, 11221 - First middle clamping post inclined plane block, 1123 - First middle limiting structure, 12 - First trapezius muscle massage module, 121 - First adjusting component, 1211 - First elongation component body, 12111 - First limiting installation position, 121111 - First limiting card slot, 12112 - First adjusting block installation cavity, 1212 - First length adjusting block, 12121 - First length adjusting limiting block, 12122 - First length adjusting position, 121221 - First length adjusting tooth, 1212 - First length adjusting block, 1213 - First adjusting component, 12131 - First rotating part, 121311 - First elastic clamping end, 121312 - First elastic adjusting cavity, 121313 - First rotating connection column, 121314 - First rotating limiting clamping post, 121315 - First rotating limiting clamping block, 121316 - First transmission part, 12132 - First adjusting knob, 121321 - First rotating limiting clamping post slot, 121322 - First rotating connection column hole, 122 - First lower massage head, 1221 - First lower massage head connecting part, 1222 - First lower massage head body, 14 - First massage connecting rod assembly, 141 - First upper connecting rod, 1411 - First upper massage head installation position, 14111 - First upper inclined plane block, 14112 - First upper installation column, 1412 - First middle massage head installation position, 14121 - First middle inclined plane block, 14122 - First middle installation column, 142 - First swinging part, 143 - First swinging connecting rod assembly, 1431 - First swinging rotating part, 14311 - First swinging inclined plane platform, 14312 - First upper rod connection end, 14313 - First swinging part connection end, 1432 - First upper rod fastener, 1433 - First lower rod fastener; 2 - Gear structure, 21 - First - stage transmission gear group, 211 - First - stage connecting rod, 212 - First - stage gear, 2121 - Motor meshing tooth, 2122 - First - stage transmission meshing tooth, 22 - Second - stage transmission gear group, 221 - Second - stage connecting rod, 222 - Second - stage gear, 2221 - Second - stage meshing tooth, 2222 - Second - stage transmission meshing tooth, 23 - Third - stage transmission gear group, 231 - Third - stage connecting rod, 2311 - First output end, 2312 - Second output end, 232 - Third - stage gear, 2321 - Third - stage meshing tooth, 24 - Driving motor;3 - Massage housing, 32 - Upper housing, 321 - Locking position, 33 - Lower housing, 331 - Locking post, 332 - Motor mounting position, 333 - First - stage gear mounting position, 334 - Second - stage gear mounting position, 335 - Third - stage gear mounting position, 336 - Connecting rod limiting groove, 337 - Connecting rod mounting position; 4 - Second massage arm, 41 - Second massage head group, 411 - Second upper massage head, 4111 - Second upper massage head body, 4112 - Second upper massage head clamping post, 412 - Second middle massage head, 4121 - Second middle massage head body, 4122 - Second middle massage head clamping post, 42 - Second trapezius muscle massage module, 43 - Second massage link assembly, 431 - Second upper link, 4311 - Second upper massage head mounting position, 4312 - Second middle massage head mounting position, 432 - Second swing member; DSmin - Minimum distance between two upper modules, DSmax - Maximum distance between two upper modules, DZmin - Minimum distance between two middle modules, DZmax - Maximum distance between two middle modules, Emin - Minimum distance between two side surfaces, Emax - Maximum distance between two side surfaces, Fmax - Maximum elongation.; Detailed implementation mode

[0049] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without making creative efforts belong to the protection scope of the present utility model.

[0050] As Figures 1 to 25 shown, an adjustable neck and shoulder massager provided by an embodiment of the present utility model includes:

[0051] Massage housing 3; a transmission structure connected within the massage housing 3; a massage arm group connected to the massage housing 3, the massage arm group including a first massage arm 1 and a second massage arm 4. The first massage arm 1 includes a first massage head group 11, a first trapezius muscle massage module 12, and a first massage link assembly 14. The second massage arm 4 includes a second massage head group 41, a second trapezius muscle massage module 42, and a second massage link assembly 43. The first massage head group 11 and the first trapezius muscle massage module 12 are respectively rotatably connected to the first massage link assembly 14, and the second massage head group 41 and the second trapezius muscle massage module 42 are respectively rotatably connected to the second massage link assembly 43. By respectively rotating the first massage head group 11 and the second massage head group 41 towards the position of the human neck, the distance D between the two modules can be adjusted. The first massage link assembly 14 and the second massage link assembly 43 are respectively connected to the transmission structure, and the transmission structure drives the first massage link assembly 14 and the second massage link assembly 43 to swing synchronously, thereby driving the first massage head group 11, the first trapezius muscle massage module 12, the second massage head group 41, and the second trapezius muscle massage module 42 to swing synchronously for massage.

[0052] Specifically, the first massage link assembly 14 is provided with a first upper link 141 and a first swing member 142. The first massage head group 11 is provided with a first upper massage head 111 and a first middle massage head 112 rotatably connected to the first upper link 141. By rotating the first upper massage head 111 or the first middle massage head 112, the side surface distance E between the two sides of the two massage heads facing the same direction on the human neck can be adjusted, and the side surface distance E can be adjusted from the minimum side surface distance Emin to the maximum side surface distance Emax according to different user requirements. The second massage link assembly 43 is provided with a second upper link 431 and a second swing member 432. The second massage head group 41 is provided with a second upper massage head 411 and a second middle massage head 412 rotatably connected to the second upper link 431. By respectively adjusting the side surfaces of the first upper massage head 111 and the second upper massage head 411 or the first middle massage head 112 and the second middle massage head 412 facing the human neck, the upper two-module distance DS or the middle two-module distance DZ in the two-module distances can be respectively adjusted. The first trapezius muscle massage module 12 is connected to the first swing member 142 and swings synchronously with the first massage head group 11. The second trapezius muscle massage module 42 is connected to the second swing member 432 and swings synchronously with the second massage head group 41. With such a design, by adjusting the two-module distance DS or the middle two-module distance DZ, the neck and shoulder massager can be made to fit the human body better to achieve the best massage effect. The massage head group design can also be designed with a variety of massage modes, including knocking, kneading, or pushing, so as to achieve diverse massage effects through the complex movement of the transmission structure and enhance the user's massage experience.

[0053] Furthermore, the first trapezius muscle massage module 12 includes a first adjustment component 121 and a first lower massage head 122. The first adjustment component 121 is connected to the first swing member 142, and the first lower massage head 122 is connected to the first adjustment component 121. The elongation amount F of the first lower massage head 122 towards one end of the human trapezius muscle is adjusted through the first adjustment component 121, and can be adjusted to the maximum elongation amount Fmax. The first lower massage head 122 is designed to be telescopic, and the length of the first lower massage head 122 can be changed through the first adjustment component 121 to adapt to muscle tissues of different thicknesses. The first trapezius muscle massage module 12 is also provided with a temperature control unit, which can adjust the temperature of the first lower massage head 122 according to the user's preference to provide a hot compress or cold compress massage effect.

[0054] Furthermore, the transmission structure is further provided with a gear structure 2. The gear structure 2 is connected inside the massage housing 3. The gear structure 2 is provided with a first-stage transmission gear set 21, a second-stage transmission gear set 22, and a third-stage transmission gear set 23. The first-stage transmission gear set 21 is rotatably connected to the drive motor 24. The second-stage transmission gear set 22 is rotatably connected to the first-stage transmission gear set 21. The third-stage transmission gear set 23 is rotatably connected to the second-stage transmission gear set 22. The third-stage transmission gear set 23 is provided with a first output end 2311 and a second output end 2312 that rotate synchronously. The first massage link assembly 14 and the second massage link assembly 43 are respectively connected to the first output end 2311 and the second output end 2312 to perform synchronous swinging, thereby driving the first massage head group 11, the first trapezius muscle massage module 12, the second massage head group 41, and the second trapezius muscle massage module 42 to perform synchronous swinging massage. With such a design, first, the three-stage gear transmission can effectively amplify the input torque, making the output torque larger and the massage more comfortable. Second, the three-stage gear transmission can reduce vibration and noise because the load is distributed to multiple gears, making the operation smoother. Third, the three-stage gear transmission is modular in design, facilitating maintenance and replacement.

[0055] Further, the first upper connecting rod 141 is provided with a first upper massage head mounting position 1411 and a first middle massage head mounting position 1412. The first upper massage head mounting position 1411 and the first middle massage head mounting position 1412 are designed as detachable structures, allowing users to quickly replace or maintain the first upper massage head 111 and the first middle massage head 112. The first middle massage head mounting position 1412 is relatively arranged below the first upper massage head mounting position 1411. The first upper massage head mounting position 1411 is provided with a first upper inclined block 14111 and a first upper mounting column 14112. The first upper massage head 111 is rotatably connected to the first upper mounting column 14112 and abuts against the first upper inclined block 14111 for rotational adjustment. The first middle massage head mounting position 1412 is provided with a first middle inclined block 14121 and a first middle mounting column 14122. The first middle massage head 112 is rotatably connected to the first middle mounting column 14122 and abuts against the first middle inclined block 14121 for rotational adjustment. The second upper connecting rod 431 is provided with a second upper massage head mounting position 4311 and a second middle massage head mounting position 4312. The first upper massage head 111 includes a first upper massage head body 1111 and a first upper massage head clamping column 1112. The first upper massage head body 1111 can be adjusted independently of other massage heads to adapt to the massage needs of different parts. And the first upper massage head body 1111 is designed with a replaceable massage head cover, and users can replace massage head covers of different materials or shapes according to personal preferences or specific needs. The first upper massage head clamping column 1112 is rotatably connected to the first upper massage head mounting position 1411. The first upper massage head body 1111 is eccentrically connected to the first upper massage head clamping column 1112 and can rotate with the first upper massage head clamping column 1112. The first upper massage head body 1111 is provided with a first upper clamping column hole 11111 and at least two first upper thickness adjustment gears for adjusting the thickness of the first upper massage head body 1111. The first thickness adjustment gears include a plurality of preset grooves or protrusions, and these grooves or protrusions are distributed along the side surface of the first upper massage head body 1111, allowing users to select different thickness settings according to needs. The thickness adjustment gears of the present utility model are preferably raised letters and are arranged at the connection end of the first upper limit structure 1113, facilitating accurate adjustment by users. A first upper clamping column through groove 11112 is arranged in the first upper clamping column hole 11111. The first upper clamping column through groove 11112 facilitates longitudinal slight sliding adjustment of the first upper massage head body 1111. The first upper massage head body 1111 is axially fixedly connected to the first upper massage head clamping column 1112 through the first upper clamping column through groove 11112, so that the first upper massage head body 1111 can rotate relative to the first upper connecting rod 141 to adjust the first thickness adjustment gears. With such a design, the convenience of adjusting the first upper massage head body 1111 is improved.The first upper massage head clamping post 1112 is provided with a first upper clamping post inclined plane block 11121. The first upper clamping post inclined plane block 11121 can abut against the first upper inclined plane block 14111 to realize reverse adjustment of the first thickness adjustment gear. The contact surface between the first upper clamping post inclined plane block 11121 and the first upper inclined plane block 14111 adopts a low-friction material to reduce the frictional resistance generated during reverse adjustment and ensure the smoothness of adjustment. Moreover, the reverse adjustment design of the first upper clamping post inclined plane block 11121 also takes into account the user's usage habits and force distribution, ensuring that the user can easily operate during reverse adjustment without causing inconvenience, being simple and fast. The second upper massage head 411 includes a second upper massage head body 4111 and a second upper massage head clamping post 4112. The second upper massage head clamping post 4112 is rotatably connected to the second upper massage head mounting position 4311. The second upper massage head body 4111 is eccentrically connected to the second upper massage head clamping post 4112 and can rotate with the second upper massage head clamping post 4112. By rotating the side surface of the upper massage head body 1111 or the second upper massage head body 4111 facing the human neck, the distance DS between the upper two modules can be adjusted, and the distance DS between the upper two modules can be adjusted from the minimum distance DSmin between the upper two modules to the maximum distance DSmax between the upper two modules according to different user needs. With such a design, the functions related to personalized settings are increased, and the flexibility, applicability, and adjustment convenience of the massager are improved.

[0056] The first middle massage head 112 includes a first middle massage head body 1121 and a first middle massage head clamping post 1122. The first middle massage head body 1121 can be adjusted independently of other massage heads to adapt to the massage needs of different parts. And the first middle massage head body 1121 is designed with a replaceable massage head cover, and the user can replace massage head covers of different materials or shapes according to personal preferences or specific needs. The first middle massage head clamping post 1122 is rotatably connected to the first middle massage head mounting position 1412. The first middle massage head body 1121 is eccentrically connected to the first middle massage head clamping post 1122 and can rotate with the first middle massage head clamping post 1122. The first middle massage head body 1121 is provided with a middle clamping post hole 11211 and at least two first middle thickness adjustment gears for adjusting the thickness of the first middle massage head body 1121. The first thickness adjustment gear includes a plurality of preset grooves or protrusions, and these grooves or protrusions are distributed along the side surface of the first middle massage head body 1121, allowing the user to select different thickness settings according to needs. The thickness adjustment gear of the present utility model is preferably a raised letter and is provided at the connection end of the first middle limit structure 1123, which is convenient for the user to accurately adjust. A first middle clamping post through groove 11212 is provided in the middle clamping post hole 11211 of the first middle massage head body 1121. The first middle clamping post through groove 11212 facilitates the longitudinal slight sliding adjustment of the first middle massage head body 1121. The first middle massage head body 1121 is axially fixedly connected to the first middle massage head clamping post 1122 through the first middle clamping post through groove 11212, so that the first middle massage head body 1121 can rotate relative to the first upper connecting rod 141 to adjust the thickness adjustment gear. With such a design, the convenience of adjusting the first middle massage head body 1121 is improved. The first middle massage head clamping post 1122 is provided with a first middle clamping post inclined block 11221. The first middle clamping post inclined block 11221 can abut against the first middle inclined block 14121 to realize the reverse adjustment of the thickness adjustment gear. And the contact surface between the first middle clamping post inclined block 11121 and the first middle inclined block 14121 adopts a low-friction material to reduce the frictional resistance generated during the reverse adjustment and ensure the smoothness of the adjustment. Moreover, the reverse adjustment design of the first middle clamping post inclined block 11221 also takes into account the user's usage habits and force distribution, ensuring that the user can easily operate during the reverse adjustment without causing inconvenience, which is simple and fast. The second middle massage head 412 includes a second middle massage head body 4121 and a second middle massage head clamping post 4122. The second middle massage head clamping post 4122 is rotatably connected to the second middle massage head mounting position 4312. The second middle massage head body 4121 is eccentrically connected to the second middle massage head clamping post 4122 and can rotate with the second middle massage head clamping post 4122.The distance DZ between the two middle modules can be adjusted by rotating the side surface of the first middle massage head body 1121 or the second middle massage head body 4121 towards the human neck. The distance DZ between the two middle modules can be adjusted from the minimum distance DZmin to the maximum distance DZmax between the two middle modules according to different user needs. With such a design, the functions related to personalized settings are increased, and the flexibility and applicability of the massager, as well as the convenience of the coordinated adjustment of the distance DS between the two upper modules and the distance DZ between the two middle modules, are improved.

[0057] The second upper massage head mounting position 4311, the second middle massage head mounting position 4312, the second upper massage head body 4111, the second upper massage head clamping post 4112, the second middle massage head body 4121, and the second middle massage head clamping post 4122 of the present utility model adopt the same structural design as the first upper massage head mounting position 1411, the first middle massage head mounting position 1412, the first upper massage head body 1111, the first upper massage head clamping post 1112, the first middle massage head body 1121, and the first middle massage head clamping post 1122, achieving the same massage effect.

[0058] Furthermore, the first adjustment component 121 includes a first elongation component body 1211, a first length adjustment block 1212, and a first adjustment component 1213. The first elongation component body 1211 is connected to the first swing member 142 for swinging. The first length adjustment block 1212 is connected inside the first elongation component body 1211. The first lower massage head 122 is provided on the first length adjustment block 1212. The first adjustment component 1213 is rotatably arranged on the first elongation component body 1211 and is in transmission cooperation with the first length adjustment block 1212. By rotating the first adjustment component 1213 forward, the first length adjustment block 1212 can be driven to extend outward to increase the elongation amount F. Moreover, a first limiting component for restricting the reverse rotation of the first adjustment component 1213 is further provided on the first elongation component body 1211. The first limiting component can also be designed to be adjustable, allowing the user to adjust the force for restricting the reverse rotation of the first adjustment component 1213 according to needs, so as to prevent over-adjustment and affect the stability of the first lower massage head 122 after adjustment.

[0059] The first adjusting member 1213 includes a first rotating member 12131 and a first adjusting knob 12132. The first adjusting knob 12132 is rotatably connected to the first rotating member 12131. The first rotating member 12131 includes a first limiting portion and a first transmission portion 121316. The first limiting assembly includes a first limiting installation position 12111 provided on the first elongation member body 1211. The first limiting portion of the first rotating member 12131 cooperates with the first limiting installation position 12111 so that the first rotating member 12131 can rotate forward with the first adjusting knob 12132. When the first adjusting knob 12132 rotates reversely relative to the first rotating member 12131, the first limiting portion can be disengaged from the cooperation with the first limiting installation position 12111, and then drive the first rotating member 12131 to rotate reversely. The first limiting portion includes a first elastic clamping end 121311 and a first elastic adjusting cavity 121312. The first elastic clamping end 121311 can be radially contracted through the first elastic adjusting cavity 121312. The first elastic clamping end 121311 is further provided with a first rotation limiting clamping column 121314 provided on the side surface of the first elastic clamping end 121311 and a first rotation limiting clamping block 121315 provided on the outer periphery of the first elastic clamping end 121311. A plurality of first limiting card slots 121111 are provided on the inner peripheral wall of the first limiting installation position 12111. The first rotation limiting clamping block 121315 is provided with a first clamping block adjusting inclined surface end and a first clamping block buckling end. The first adjusting knob 12132 is connected to the first rotation limiting clamping column 121314. The first limiting card slot 121111 has a first inclined surface side opposite to the first clamping block adjusting inclined surface end and a first limiting side opposite to the first clamping block buckling end. The first adjusting knob 12132 is provided with a first rotation limiting clamping column groove 121321 and a first rotation connection column hole 121322. The first rotation limiting clamping column groove 121321 has a first fine-tuning end, a first reset end, and a first guiding inner wall connected between the first fine-tuning end and the first reset end. The first rotating member 12131 is further provided with a first rotation connection column 121313. The first rotation connection column 121313 cooperates with the first rotation connection column hole 121322. The first rotation limiting clamping column 121314 is slidably connected to the first rotation limiting clamping column groove 121321. When the first rotation limiting clamping column 121314 abuts against the first fine-tuning end, the first rotating member 12131 can rotate forward with the first adjusting knob 12132. When the first rotation limiting clamping column 121314 abuts against the first reset end, the first rotation limiting clamping block 121315 disengages from the first limiting card slot 121111, and the first rotating member 12131 can rotate reversely with the first adjusting knob 12132.

[0060] The first elongation member body 1211 is further provided with a first adjustment block mounting cavity 12112. The first limiting mounting position 12111 communicates with the first adjustment block mounting cavity 12112. The first length adjustment block 1212 is connected within the first length adjustment block mounting cavity 12112. The first adjustment member 1213 is mounted on the first limiting mounting position 12111 and is in transmission cooperation with the first length adjustment block 1212. The first adjustment member 1213 can adjust the first length adjustment block 1212 to extend out of the first adjustment block mounting cavity 12112 to increase the elongation amount F. The first length adjustment block 1212 is provided with a first length adjustment limiting block 12121 and a first length adjustment position 12122. The first length adjustment position 12122 is provided with first length adjustment teeth 121221. The first adjustment member 1213 and the first length adjustment block 1212 are rotationally connected through the first transmission part 121316 and the first length adjustment teeth 121221 to adjust the elongation amount F, and the inward retraction depth of the first length adjustment block 1212 is limited by the first length adjustment limiting block 12121. The first transmission part 121316 is designed as a gear. By limiting the first rotating member 12131, the stability after the adjustment of the first length adjustment block 1212 can be achieved.

[0061] The first lower massage head 122 includes a first lower massage head connecting member 1221 and a first lower massage head body 1222. The first lower massage head connecting member 1221 is fixedly connected to the first length adjustment block 1212. The first lower massage head body 1222 is connected to the first lower massage head connecting member 1221 and can swing along with the first length adjustment block 1212 for massage. The connection between the first lower massage head connecting member 1221 and the first length adjustment block 1212 adopts a ball head or universal joint design to provide a more flexible swinging range. In the present utility model, the connection end of the first length adjustment block 1212 and the first lower massage head 122 is preferably designed in a dolphin shape, which is convenient for keeping the first lower massage head 122 from shaking during the massage process, so as to provide a stable and comfortable massage experience for the user.

[0062] Further, the first-stage transmission gear set 21 is provided with a first-stage connecting rod 211 and a first-stage gear 212. The first-stage gear 212 is connected to the massage housing 3 through the first-stage connecting rod 211. The middle of the first-stage gear 212 is provided with motor meshing teeth 2121, and the two sides are provided with first-stage transmission meshing teeth 2122. The drive motor 24 is rotationally connected to the motor meshing teeth 2121. The second-stage transmission gear set 22 meshes with the first-stage transmission meshing teeth 2122 for rotation. At the same time, a shock-absorbing component is installed at the connection between the first-stage connecting rod 211 and the massage housing 1 to reduce vibration and noise during the transmission process and enhance the comfort of using the massager.

[0063] The secondary transmission gear set 22 is arranged above the primary transmission gear set 21. The secondary transmission gear set 22 is provided with a secondary connecting rod 221 and secondary gears 222. The secondary gears 222 are relatively arranged on both sides of the secondary connecting rod 221 and are connected to the massage housing 3 through the secondary connecting rod 221. The secondary gears 222 are provided with secondary meshing teeth 2221 and secondary transmission meshing teeth 2222. The secondary meshing teeth 2221 are in meshing transmission with the primary transmission meshing teeth 2122, and the tertiary transmission gear set 23 is in meshing transmission with the secondary transmission meshing teeth 2222. At the same time, a shock-absorbing component is installed at the connection between the secondary connecting rod 221 and the massage housing 1 to reduce vibration and noise during the meshing transmission between the secondary meshing teeth 2221 and the primary transmission meshing teeth 2122, and enhance the comfort of using the massager.

[0064] The tertiary transmission gear set 23 is arranged below the secondary transmission gear set 22. The tertiary transmission gear set 23 is provided with a tertiary connecting rod 231 and tertiary gears 232. The first output end 2311 and the second output end 2312 are arranged on both sides of the tertiary connecting rod 231. The first massage connecting rod assembly 14 and the second massage connecting rod assembly 43 are respectively connected to the tertiary connecting rod 231. The tertiary gears 232 are fixedly connected to the tertiary connecting rod 231. The tertiary gears 232 are provided with tertiary meshing teeth 2321. The tertiary meshing teeth 2321 are in meshing transmission with the secondary transmission meshing teeth 2222, and can drive the synchronous swing of the massage arm group. With such a design, the fixing method of the tertiary gears 232 effectively ensures that the tertiary gears 232 will not loosen during the transmission process, ensuring the reliability of the transmission, and further making the synchronous swing of the massage arm group more stable, so as to enhance the comfort of the user experience.

[0065] The multi-stage gear transmission group is symmetrically designed and is relatively arranged on both sides of the massage housing 3. The symmetric design of the gear transmission group can more evenly distribute the load to each gear, reducing the wear and stress concentration of a single gear. Second, the symmetric design simplifies the layout of the gear transmission system, making the design and manufacturing process more efficient. Third, the symmetric design provides better torque balance, helping to improve the stability and reliability of the gear transmission system.

[0066] Further, the first massage link assembly 14 further includes a first swing link assembly 143. The first swing link assembly 143 is connected to the first output end 2311 for swinging. The first swing link assembly 143 includes a first swing rotating member 1431, a first upper rod fastener 1432, and a first lower rod fastener 1433. The first upper link 141 is connected to the first swing rotating member 1431 and is fastened by the first upper rod fastener 1432 for swinging; the first adjusting assembly 121 is connected to one end of the first swing member 142. The other end of the first swing member 142 is connected to the other side of the first swing rotating member 1431 relative to the first upper link 141 and is fastened by the first lower rod fastener 1433 for swinging; the first swing rotating member 1431 is eccentrically connected to the first output end 2311, enabling the first upper massage head 111, the first middle massage head 112, and the first lower massage head 122 to swing synchronously within a certain angle range to prevent the first swing rotating member 1431 from exceeding the safe range during the swinging process and ensuring the safety of use; in addition, the first swing link assembly 143 is modularly designed, allowing users to replace or upgrade the swing link assembly according to needs to adapt to different massage programs or preferences and enhancing the user experience.

[0067] The first swing and rotating member 1431 is provided with a first swing inclined surface table 14311, a first upper rod connection end 14312, and a first swing member connection end 14313. The first swing and rotating member 1431 is designed to be replaceable. The first swing inclined surface table 14311 is designed with inclined surfaces at multiple angles, allowing the user to adjust and replace the first swing and rotating member 1431 at different angles according to needs, so as to change the swing amplitude of the first swing and rotating member 1431 and adjust the swing range of the first massage head group 11 and the first trapezius muscle massage module 12; the first upper rod connection end 14312 is fixedly connected to the inclined surface end of the first swing inclined surface table 14311, and the first swing member connection end 14313 is fixedly connected to the flat surface end of the first swing inclined surface table 14311 relative to the first upper rod connection end 14312; the first upper connecting rod 141 is connected to the first upper rod connection end 14312, and the first swing member 142 is connected to the first swing member connection end 14313; the first upper rod connection end 14312 is provided with a first power connection hole vertically provided in the middle of the first upper rod connection end 14312. The first power connection hole is designed with an arc plus a flat surface to ensure that the first output end 2311 can stably drive the first swing and rotating member 1431 to rotate; the first power connection hole is connected through to the first swing member connection end 14313, and the first swing and rotating member 1431 is eccentrically connected to the first output end 2311 through the first power connection hole, thereby driving the first upper massage head 111, the first middle massage head 112, and the first lower massage head 122 to swing synchronously within a certain angle range to enhance the user's massage experience.

[0068] Furthermore, the second trapezius muscle massage module 42 includes a second adjustment component and a second lower massage head. The second adjustment component is connected to the second swing member, and the second lower massage head is connected to the second adjustment component. The elongation amount F of the second lower massage head towards one end of the human trapezius muscle is adjusted through the second adjustment component, and can be adjusted to the maximum elongation amount Fmax. The second lower massage head is designed to be telescopic, and the length of the second lower massage head can be changed through the second adjustment component to adapt to muscle tissues of different thicknesses. The second trapezius muscle massage module 42 is also provided with a temperature control unit, which can adjust the temperature of the second lower massage head according to the user's preference to provide a massage effect of hot compress or cold compress. The second adjustment component includes a second elongation component body, a second length adjustment block, and a second adjustment component. The second elongation component body is connected to the second swing member for swinging. The second length adjustment block is connected inside the second elongation component body. The second lower massage head is arranged on the second length adjustment block. The second adjustment component is rotatably arranged on the second elongation component body and is in transmission cooperation with the second length adjustment block. By rotating the second adjustment component forward, the second length adjustment block can be driven to extend outward to increase the elongation amount F. By rotating the second adjustment component forward, the second length adjustment block can be driven to extend outward, and a second limiting component for restricting the reverse rotation of the second adjustment component is also arranged on the second elongation component body. The second limiting component can also be designed to be adjustable, allowing the user to adjust the force for restricting the reverse rotation of the second adjustment component according to needs to prevent over-adjustment and affect the stability of the second lower massage head after adjustment. The second lower massage head includes a second lower massage head connecting piece and a second lower massage head body. The second lower massage head connecting piece is fixedly connected to the second length adjustment block, and the second lower massage head body is connected to the second lower massage head connecting piece and can swing with the second length adjustment block for massage. The connection between the second lower massage head connecting piece and the second length adjustment block adopts a ball head or universal joint design to provide a more flexible swing range. The connection end of the second length adjustment block and the second lower massage head in the present invention is preferably designed in a dolphin shape, which is convenient for keeping the second lower massage head from shaking during the massage process to provide a stable and comfortable massage experience for the user.

[0069] The second massage link assembly 43 further includes a second swing link assembly. The second swing link assembly is connected to the second output end 2312 for swinging. The second swing link assembly includes a second swing rotating member, a second upper rod fastener, and a second lower rod fastener. The second upper link 431 is connected to the second swing rotating member and is fastened by the second upper rod fastener for swinging; the second adjusting assembly is connected to one end of the second swing member 432. The other end of the second swing member 432 is connected to the other side of the second swing rotating member relative to the second upper link 431 and is fastened by the second lower rod fastener for swinging; the second swing rotating member is eccentrically connected to the second output end 2312, which can synchronously swing the second upper massage head 411, the second middle massage head 412, and the second lower massage head within a certain angle range to prevent the second swing rotating member from exceeding the safe range during the swinging process and ensure the safety of use; in addition, the second swing link assembly is modularly designed, allowing users to replace or upgrade the swing link assembly according to needs to adapt to different massage programs or preferences and enhance the user experience.

[0070] The second swing rotating member, the second adjusting component, and the second elongation component body of the present utility model adopt the same structural design as the first swing rotating member 1431, the first adjusting component 1213, and the first elongation component body 1211 to achieve the same massage effect.

[0071] Further, the massage housing 3 is provided with an upper housing 32 and a lower housing 33. The upper housing 32 is provided with a locking position 321, and the lower housing 33 is provided with a locking post 331, a motor mounting position 332, a first-stage gear mounting position 333, a second-stage gear mounting position 334, a third-stage gear mounting position 335, a connecting rod limiting groove 336, and a connecting rod mounting position 337. The connecting rod limiting grooves 336 are oppositely arranged on both sides of the lower housing 33. The first upper connecting rod 141 and the second upper connecting rod 431 are respectively provided with a first connecting rod limiting post and a second connecting rod limiting post. The first connecting rod limiting post and the second connecting rod limiting post are respectively inserted into the connecting rod limiting grooves 336 on both sides to limit the movement ranges of the first upper connecting rod 141 and the second upper connecting rod 431, so as to precisely control the swinging of the first upper connecting rod 141 and the second upper connecting rod 431 by the movement of the first connecting rod limiting post and the second connecting rod limiting post in the connecting rod limiting groove 336. The connecting rod mounting positions 337 are oppositely arranged on both sides of the lower housing 33. The first extension member body 1211 and the second extension member body are respectively provided with a first member swinging groove and a second member swinging groove. The first extension member body 1211 and the second extension member body are respectively connected to the connecting rod mounting positions 337 on both sides through the first member swinging groove and the second member swinging groove to achieve sliding connection, ensuring that the first trapezius muscle massage module 12 and the second trapezius muscle massage module 42 swing within a certain range to enhance the massage effect of the neck and shoulder massager. The driving motor 24 is fixedly connected to the motor mounting position 332, and the first-stage transmission gear set 21, the second-stage transmission gear set 22, and the third-stage transmission gear set 23 are respectively connected to the first-stage gear mounting position 333, the second-stage gear mounting position 334, and the third-stage gear mounting position 335. The upper housing 32 and the lower housing 33 are connected through the locking position 321 and the locking post 331 to lock the components in the massage housing 3, so as to ensure the compactness and stability of the entire massager.

[0072] It should be understood that in the present invention, terms such as "first" and "second" are used to describe various information, but these information should not be limited to these terms. These terms are only used to distinguish the same type of information from each other. For example, without departing from the scope of the present invention, "first" information can also be called "second" information, and similarly, "second" information can also be called "first" information. In addition, the orientation or positional relationship indicated by terms such as "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation to the present invention.

[0073] The above are the preferred embodiments of the present utility model. It should be noted that for those of ordinary skill in the art, without departing from the principle of the present utility model, several improvements and modifications can be made, and these improvements and modifications are also regarded as the protection scope of the present utility model.

Claims

1. An adjustable neck and shoulder massager, characterized in that, Comprising: A massage housing (3); A transmission structure, which is connected inside the massage housing (3); A massage arm group, which is connected to the massage housing (3). The massage arm group is provided with a first massage arm (1) and a second massage arm (4). The first massage arm (1) includes a first massage head group (11), a first trapezius muscle massage module (12), and a first massage link assembly (14). The second massage arm (4) includes a second massage head group (41), a second trapezius muscle massage module (42), and a second massage link assembly (43). The first massage head group (11) and the first trapezius muscle massage module (12) are respectively rotatably connected to the first massage link assembly (14), and the second massage head group (41) and the second trapezius muscle massage module (42) are respectively rotatably connected to the second massage link assembly (43). By respectively rotating the first massage head group (11) and the second massage head group (41) towards the position of the human neck, the distance (D) between the two modules can be adjusted. The first massage link assembly (14) and the second massage link assembly (43) are respectively connected to the transmission structure, and the transmission structure drives the first massage link assembly (14) and the second massage link assembly (43) to swing synchronously, thereby driving the first massage head group (11), the first trapezius muscle massage module (12), the second massage head group (41), and the second trapezius muscle massage module (42) to swing synchronously for massage.

2. The adjustable neck and shoulder massager according to claim 1, characterized in that, The first massage link assembly (14) is provided with a first upper link (141) and a first swing member (142). The first massage head group (11) is provided with a first upper massage head (111) and a first middle massage head (112) rotatably connected to the first upper link (141). By rotating the first upper massage head (111) or the first middle massage head (112), the distance (E) between the two side surfaces on both sides in the same direction of the two massage heads facing the human neck can be adjusted. The second massage link assembly (43) is provided with a second upper link (431) and a second swing member (432). The second massage head group (41) is provided with a second upper massage head (411) and a second middle massage head (412) rotatably connected to the second upper link (431). By respectively adjusting the side surfaces of the first upper massage head (111) and the second upper massage head (411) or the first middle massage head (112) and the second middle massage head (412) facing the human neck, the upper distance (DS) or the middle distance (DZ) between the two modules in the two-module distance can be respectively adjusted. The first trapezius muscle massage module (12) is connected to the first swing member (142) and swings synchronously with the first massage head group (11), and the second trapezius muscle massage module (42) is connected to the second swing member (432) and swings synchronously with the second massage head group (41).

3. An adjustable neck and shoulder massager according to claim 2, characterized in that, The first trapezius muscle massage module (12) includes a first adjustment component (121) and a first lower massage head (122). The first adjustment component (121) is connected to the first swinging member (142), and the first lower massage head (122) is connected to the first adjustment component (121). The elongation amount (F) of the first lower massage head (122) towards one end of the human trapezius muscle is adjusted through the first adjustment component (121).

4. An adjustable neck and shoulder massager according to claim 3, characterized in that, The transmission structure is further provided with a gear structure (2). The gear structure (2) is connected inside the massage housing (3). The gear structure (2) is provided with a first-stage transmission gear set (21), a second-stage transmission gear set (22), and a third-stage transmission gear set (23). The first-stage transmission gear set (21) is rotatably connected to the drive motor (24). The second-stage transmission gear set (22) is rotatably connected to the first-stage transmission gear set (21). The third-stage transmission gear set (23) is rotatably connected to the second-stage transmission gear set (22). The third-stage transmission gear set (23) is provided with a first output end (2311) and a second output end (2312) that rotate synchronously. The first massage link assembly (14) and the second massage link assembly (43) are respectively connected to the first output end (2311) and the second output end (2312) to swing synchronously, thereby driving the first massage head group (11), the first trapezius muscle massage module (12), the second massage head group (41), and the second trapezius muscle massage module (42) to swing synchronously for massage.

5. The adjustable neck and shoulder massager according to claim 3, characterized in that, The first upper link (141) is provided with a first upper massage head mounting position (1411) and a first middle massage head mounting position (1412); the second upper link (431) is provided with a second upper massage head mounting position (4311) and a second middle massage head mounting position (4312); the first upper massage head (111) includes a first upper massage head body (1111) and a first upper massage head clamping post (1112). The first upper massage head clamping post (1112) is rotatably connected to the first upper massage head mounting position (1411). The first upper massage head body (1111) is eccentrically connected to the first upper massage head clamping post (1112) and can rotate with the first upper massage head clamping post (1112); the second upper massage head (411) includes a second upper massage head body (4111) and a second upper massage head clamping post (4112). The second upper massage head clamping post (4112) is rotatably connected to the second upper massage head mounting position (4311). The second upper massage head body (4111) is eccentrically connected to the second upper massage head clamping post (4112) and can rotate with the second upper massage head clamping post (4112); by rotating the side surface of the first upper massage head body (1111) or the second upper massage head body (4111) towards the human neck, the distance (DS) between the upper two modules can be adjusted; The first middle massage head (112) includes a first middle massage head body (1121) and a first middle massage head clamping post (1122). The first middle massage head clamping post (1122) is rotatably connected to the first middle massage head mounting position (1412). The first middle massage head body (1121) is eccentrically connected to the first middle massage head clamping post (1122) and can rotate with the first middle massage head clamping post (1122). The second middle massage head (412) includes a second middle massage head body (4121) and a second middle massage head clamping post (4122). The second middle massage head clamping post (4122) is rotatably connected to the second middle massage head mounting position (4312). The second middle massage head body (4121) is eccentrically connected to the second middle massage head clamping post (4122) and can rotate with the second middle massage head clamping post (4122). By rotating the side surface of the first middle massage head body (1121) or the second middle massage head body (4121) facing the human neck, the middle two-module spacing (DZ) can be adjusted.

6. The adjustable neck and shoulder massager according to claim 5, characterized in that, The first adjusting component (121) includes a first elongation component body (1211), a first length adjusting block (1212), and a first adjusting component (1213). The first elongation component body (1211) is connected to the first swing member (142) for swinging. The first length adjusting block (1212) is connected inside the first elongation component body (1211). The first lower massage head (122) is provided on the first length adjusting block (1212). The first adjusting component (1213) is rotatably arranged on the first elongation component body (1211) and is in transmission cooperation with the first length adjusting block (1212). By rotating the first adjusting component (1213) forward, the first length adjusting block (1212) can be driven to extend outward to increase the elongation amount (F). Moreover, a first limiting component for restricting the reverse rotation of the first adjusting component (1213) is further provided on the first elongation component body (1211). The first lower massage head (122) includes a first lower massage head connecting member (1221) and a first lower massage head body (1222). The first lower massage head connecting member (1221) is fixedly connected to the first length adjusting block (1212). The first lower massage head body (1222) is connected to the first lower massage head connecting member (1221) and can swing with the first length adjusting block (1212) for massage.

7. An adjustable neck and shoulder massager according to claim 4, characterized in that, The first-stage transmission gear set (21) is provided with a first-stage connecting rod (211) and a first-stage gear (212). The first-stage gear (212) is connected to the massage housing (3) through the first-stage connecting rod (211). A motor engagement tooth (2121) is provided in the middle of the first-stage gear (212), and first-stage transmission engagement teeth (2122) are provided on both sides. The drive motor (24) is rotatably connected to the motor engagement tooth (2121). The second-stage transmission gear set (22) meshes with the first-stage transmission engagement teeth (2122) for rotation. The second-stage transmission gear set (22) is arranged above the first-stage transmission gear set (21). The second-stage transmission gear set (22) is provided with a second-stage connecting rod (221) and a second-stage gear (222). The second-stage gears (222) are relatively arranged on both sides of the second-stage connecting rod (221) and are connected to the massage housing (3) through the second-stage connecting rod (221). The second-stage gears (222) are provided with second-stage engagement teeth (2221) and second-stage transmission engagement teeth (2222). The second-stage engagement teeth (2221) are engaged and transmitted with the first-stage transmission engagement teeth (2122). The third-stage transmission gear set (23) is engaged and transmitted with the second-stage transmission engagement teeth (2222). The third-stage transmission gear set (23) is arranged below the second-stage transmission gear set (22). The third-stage transmission gear set (23) is provided with a third-stage connecting rod (231) and a third-stage gear (232). A first output end (2311) and a second output end (2312) are arranged on both sides of the third-stage connecting rod (231). The first massage connecting rod assembly (14) and the second massage connecting rod assembly (43) are respectively connected to the third-stage connecting rod (231). The third-stage gear (232) is fixedly connected to the third-stage connecting rod (231). The third-stage gear (232) is provided with third-stage engagement teeth (2321). The third-stage engagement teeth (2321) are engaged and transmitted with the second-stage transmission engagement teeth (2222), and can drive the massage arm group to swing synchronously.

8. The adjustable neck and shoulder massager according to claim 7, characterized in that, The first massage link assembly (14) further includes a first swing link assembly (143). The first swing link assembly (143) is connected to the first output end (2311) for swinging. The first swing link assembly (143) includes a first swing rotating member (1431), a first upper rod fastener (1432), and a first lower rod fastener (1433). The first upper link (141) is connected to the first swing rotating member (1431) and is fastened by the first upper rod fastener (1432) for swinging; the first adjusting assembly (121) is connected to one end of the first swing member (142). The other end of the first swing member (142) is connected to the other side of the first swing rotating member (1431) relative to the first upper link (141) and is fastened by the first lower rod fastener (1433) for swinging; the first swing rotating member (1431) is eccentrically connected to the first output end (2311), enabling the first upper massage head (111), the first middle massage head (112), and the first lower massage head (122) to swing synchronously within a certain angle range.

9. The adjustable neck and shoulder massager according to claim 8, wherein The second trapezius muscle massage module (42) includes a second adjusting assembly and a second lower massage head. The second adjusting assembly is connected to the second swing member, and the second lower massage head is connected to the second adjusting assembly; the second adjusting assembly includes a second elongation member body, a second length adjusting block, and a second adjusting member. The second elongation member body is connected to the second swing member for swinging. The second length adjusting block is connected within the second elongation member body. The second lower massage head is provided on the second length adjusting block. The second adjusting member is rotatably provided on the second elongation member body and is in transmission cooperation with the second length adjusting block. By rotating the second adjusting member forward, the second length adjusting block can be driven to extend outward, and a second limiting assembly for restricting the reverse rotation of the second adjusting member is further provided on the second elongation member body; the second lower massage head includes a second lower massage head connecting member and a second lower massage head body. The second lower massage head connecting member is fixedly connected to the second length adjusting block, and the second lower massage head body is connected to the second lower massage head connecting member and can swing with the second length adjusting block for massage; The second massage link assembly (43) further includes a second swing link assembly which is connected to the second output end (2312) for swinging. The second swing link assembly includes a second swing rotating member, a second upper rod fastener, and a second lower rod fastener. The second upper link (431) is connected to the second swing rotating member and is fastened by the second upper rod fastener for swinging; the second adjusting assembly is connected to one end of the second swing member (432). The other end of the second swing member (432) is connected to the other side of the second swing rotating member relative to the second upper link (431) and is fastened by the second lower rod fastener for swinging; the second swing rotating member is eccentrically connected to the second output end (2312), enabling the second upper massage head (411), the second middle massage head (412), and the second lower massage head to swing synchronously within a certain angle range.

10. The adjustable neck and shoulder massager according to claim 7, characterized in that, The massage housing (3) is provided with an upper housing (32) and a lower housing (33). The upper housing (32) is provided with a locking position (321). The lower housing (33) is provided with a locking post (331), a motor mounting position (332), a first-stage gear mounting position (333), a second-stage gear mounting position (334), and a third-stage gear mounting position (335). The drive motor (24) is fixedly connected to the motor mounting position (332). The first-stage transmission gear set (21), the second-stage transmission gear set (22), and the third-stage transmission gear set (23) are respectively connected to the first-stage gear mounting position (333), the second-stage gear mounting position (334), and the third-stage gear mounting position (335). The upper housing (32) and the lower housing (33) are connected through the locking position (321) and the locking post (331) to lock the components within the massage housing (3).

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