Massage machine core capable of electrically adjusting massage spacing and massage instrument

By introducing a second drive component and a nut and stud structure into the massage mechanism, the electric adjustment of the massage component is achieved, solving the problem that the massage head of existing massagers cannot move, and improving the massage experience and adjustment accuracy.

CN224023876UActive Publication Date: 2026-03-24SHENZHEN JI AN HEALTH TECHNOLOGY CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-01-09
Publication Date
2026-03-24

AI Technical Summary

Technical Problem

The kneading massage heads of existing massagers cannot move axially along the rotation axis, resulting in a massage experience that needs improvement.

Method used

A massage mechanism with electrically adjustable massage spacing was designed. By adding a second drive component, a nut, and a stud, the massage component can move axially along the rotating shaft using the threaded structure of the nut and stud. Combined with a transmission gear system, precise adjustment is achieved.

Benefits of technology

It improves the massage experience and adaptability, enhances the stability and precision of adjustment, and improves the adjustment accuracy and comfort of the massage.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model provides a massage machine core capable of electrically adjusting massage spacing. The massage machine core comprises a first rotating shaft, two first mounting seats, two massage assemblies, a first driving assembly, a second driving assembly, two nuts and two studs. Each nut is connected to the corresponding massage assembly, the stud comprises a gear part and an external thread part which are connected, the external thread part is connected into the corresponding nut in a threaded mode, the second driving assembly comprises a second mounting base, a second rotating shaft, a first transmission gear, two second transmission gears, a second driving piece and a third transmission gear, and the second transmission gears are in transmission with the gear parts. The second driving part is used for driving the third transmission gear to rotate, and the third transmission gear is in transmission with the first transmission gear to drive the second rotating shaft and the second transmission gear to rotate. The massage machine core is beneficial for improving massage experience, adaptability, adjusting stability and adjusting precision. The utility model further provides a massage instrument.
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Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of massage tool, concretely relates to a massage core that can electrically adjust massage spacing and massage appearance. BACKGROUND

[0002] The kneading massage head of the current massager on the market cannot move along the axial direction of the rotating shaft, and the massage experience needs to be improved. UTILITY MODEL CONTENTS

[0003] In order to overcome the deficiency of prior art, the utility model discloses a massage core that can electrically adjust massage spacing, thereby improving the massage experience, the adaptation degree, the adjustment stability and the adjustment precision.

[0004] To solve the above problems, the utility model adopts the following technical scheme:

[0005] A massage core that can electrically adjust massage spacing, comprising a first rotating shaft, two first mounting seats, two massage assemblies and a first drive assembly, the first drive assembly comprising a first drive member for driving the first rotating shaft to rotate, the first rotating shaft being rotatably connected between the two first mounting seats, the two massage assemblies being located between the two first mounting seats, the massage core further comprising a second drive assembly, two nuts and two studs, each nut being connected to a massage assembly, the stud comprising a gear portion and an external thread portion connected together, the external thread portion of each stud being screwed into a nut, the gear portion being located on the side of the external thread portion away from the adjacent nut, the first rotating shaft passing through each stud, each nut and each massage assembly;

[0006] The second drive assembly comprises a second mounting seat, a second rotating shaft, a first transmission gear, two second transmission gears, a second drive member and a third transmission gear, the second mounting seat being arranged relative to the gap between the two studs and comprising two mounting arms arranged at intervals, the second rotating shaft being rotatably arranged through each mounting arm, the first transmission gear being located between the two second transmission gears and all being mounted on the second rotating shaft, each second transmission gear being arranged on the side of the mounting arm opposite the adjacent stud, the second transmission gear being in transmission with the gear portion, so that the stud can rotate around the first rotating shaft, thereby driving the nut to drive the massage assembly to move along the axial direction of the first rotating shaft, the second drive member being arranged beside the second rotating shaft and being used for driving the third transmission gear to rotate, the third transmission gear being in transmission with the first transmission gear to drive the second rotating shaft and the second transmission gear to rotate.

[0007] In some possible implementations, the second drive assembly further comprises:

[0008] two first connecting shafts, each of the first connecting shafts protruding from one of the mounting arms adjacent to one side end of one of the second transmission gears; and

[0009] two fourth transmission gears, each of the fourth transmission gears mounted on one of the first connecting shafts, the fourth transmission gears being in transmission engagement between the second transmission gears and the gear portion.

[0010] In some possible embodiments, the gear portion, the fourth transmission gears and the second transmission gears are arranged in a triangular distribution.

[0011] In some possible embodiments, the stud further comprises a limiting portion, the limiting portion comprising a first portion and a second portion, the second portion being connected between the first portion and an end surface of the gear portion away from the external thread portion to form a first annular recess;

[0012] The mounting arm is recessed relative to an end surface of the first rotating shaft to form a receiving groove, a bottom wall of the receiving groove protrudes a limiting protrusion adjacent to the stud, the bottom wall of the receiving groove is further recessed to form a limiting groove, the limiting groove is spaced apart from the limiting protrusion;

[0013] The massage core further comprises two bearings, each of the bearings being mounted on the first rotating shaft and located in one of the receiving grooves, a circumferential surface of the bearing protrudes a limiting protruding ring, the limiting protruding ring is engaged in the limiting groove, the first portion is in abutment between the bearing and the limiting protrusion, the limiting protrusion is further arranged in the first annular recess.

[0014] In some possible embodiments, the first driving assembly further comprises:

[0015] a fifth transmission gear mounted on the first rotating shaft, the fifth transmission gear being arranged between the two mounting arms;

[0016] The first driving member has an output shaft in a screw structure, the screw structure being arranged perpendicularly to the first rotating shaft, the screw structure being in transmission with the fifth transmission gear to drive the first rotating shaft to rotate.

[0017] In some possible embodiments, the first driving assembly further comprises:

[0018] a second connecting shaft rotatably mounted between the two mounting arms; and

[0019] a sixth transmission gear mounted on the second connecting shaft, the sixth transmission gear comprising a first transmission portion and a second transmission portion arranged in a stack, the first transmission portion being in engagement with the screw structure, the second transmission portion being in engagement with the fifth transmission gear.

[0020] In some possible embodiments, the outer surface of the nut has an abutting first region and a second region, the second region being disposed closer to the adjacent first mount, the second region being protruded from the first region away from the first rotating shaft;

[0021] The massage assembly comprises:

[0022] a first eccentric wheel comprising a first wheel portion and a second wheel portion detachably connected, the first wheel portion and the second wheel portion being enclosed to be sleeved on the first region; and

[0023] a second eccentric wheel connected to one end of the first eccentric wheel to jointly form a second annular groove, the second annular groove being disposed around the first rotating shaft, the second eccentric wheel having a connecting hole through which the first rotating shaft passes, the connecting hole having a limiting hole area covering part of an end surface of the first eccentric wheel, the second region being fixed in the limiting hole area; and

[0024] a first massage piece, a bottom wall of the second annular groove being disposed through one end of the first massage piece.

[0025] In some possible embodiments, the massage assembly further comprises:

[0026] a third eccentric wheel connected to one end of the second eccentric wheel away from the first eccentric wheel to jointly form a third annular groove, the third annular groove being disposed around the first rotating shaft; and

[0027] a second massage piece, a bottom wall of the third annular groove being disposed through one end of the second massage piece, one of the third annular groove and the second annular groove being disposed perpendicularly to the first rotating shaft, and the other being disposed obliquely to the first rotating shaft.

[0028] In some possible embodiments, the second massage piece comprises:

[0029] a connecting portion, a bottom wall of the third annular groove being disposed through one end of the connecting portion; and

[0030] two massage portions disposed non-collinearly, the massage portions being connected to one end of the connecting portion away from the third annular groove, the two massage portions being disposed towards different sides of the first rotating shaft.

[0031] The application further provides a massage instrument, comprising a shell, the massage instrument further comprising the massage movement core capable of electrically adjusting massage intervals, the shell being connected to the first mount and the second mount, the first driving piece being mounted on the second mount or the shell, and the second driving piece being mounted on the second mount or the shell.

[0032] Compared with the prior art, the massage machine core has the beneficial effects that:

[0033] In the application, the massage machine core is additionally provided with a second driving assembly, two nuts and two studs. The nut is connected to the massage assembly, and the outer threaded part of the stud is screwed into the nut. The second driving member is used to drive the third transmission gear to rotate to drive the second transmission gear and the second rotating shaft to rotate through the first transmission gear, and then drive the gear part through the second transmission gear, so as to drive the massage assembly to move along the axial direction of the first rotating shaft through the nut. Therefore, the massage machine core provided by the application is beneficial to adjusting the massage interval, thereby improving the massage experience and the fitting degree. In addition, the movement of the nut is realized through different threads or toothed structures, thereby improving the adjustment stability and adjustment accuracy.

[0034] The utility model will be further described in detail below in combination with the drawings and specific embodiments. BRIEF DESCRIPTION OF DRAWINGS

[0035] Figure 1 The structure schematic diagram of the massage instrument provided by an embodiment of the application.

[0036] Figure 2 The connection schematic diagram of the first rotating shaft, part eccentric wheel, first driving assembly, nut and stud.

[0037] Figure 3 The cross-sectional view of the middle part of the massage machine core.

[0038] Figure 4 The cross-sectional view of the eccentric wheel connection part.

[0039] Figure 5 The cross-sectional view of the massage machine core.

[0040] Explanation of reference numerals:

[0041] 10 - first rotating shaft; 11 - first mounting base; 20 - massage assembly; 21 - first eccentric wheel; 211 - first wheel part; 212 - second wheel part; 22 - second eccentric wheel; 220 - second annular groove; 221 - connecting hole; 2211 - limiting hole area; 23 - first massage piece; 24 - third eccentric wheel; 240 - third annular groove; 25 - second massage piece; 251 - connecting part; 252 - massage part; 30 - first driving assembly; 31 - first driving piece; 32 - fifth transmission gear; 33 - sixth transmission gear; 331 - first transmission part; 332 - second transmission part; 41 - second mounting base; 410 - accommodating groove; 401 - limiting groove; 411 - mounting arm; 412 - limiting protrusion; 42 - second rotating shaft; 43 - first transmission gear; 44 - second transmission gear; 45 - second driving piece; 46 - third transmission gear; 47 - first connecting shaft; 48 - fourth transmission gear; 50 - nut; 51 - first area; 52 - second area; 60 - stud; 61 - gear part; 62 - external thread part; 63 - limiting part; 631 - first part; 632 - second part; 630 - first annular groove; 70 - bearing; 71 - limiting convex ring; 80 - shell. DETAILED DESCRIPTION

[0042] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative effort belong to the scope of protection of the present application.

[0043] The terms "first", "second", etc. in the specification and claims of the present application and the above drawings are used to distinguish different objects, rather than to describe a specific sequence. In addition, the terms "include" and "have" and any variations thereof are intended to cover non-exclusive inclusion. It should be noted that when an element is referred to as "fixed to" another element, it can be directly on the other element or there can be a middle element. When an element is referred to as "connected to" another element, it can be directly connected to the other element or there can be a middle element. When an element is referred to as "provided on" another element, it can be provided on the other element or there can be a middle element.

[0044] An embodiment of the present application provides a massage core with electrically adjustable massage spacing, hereinafter referred to as a massage core, with reference to Figure 1The massage core comprises a first rotating shaft 10, two first mounting seats 11, two massage assemblies 20 and a first driving assembly 30. The first driving assembly 30 comprises a first driving member 31 for driving the first rotating shaft 10 to rotate. The first driving member 31 can comprise a motor for example. The first rotating shaft 10 is rotatably connected between the two first mounting seats 11. The first mounting seat 11 can comprise two detachable seat portions which can be connected by a connecting pin to form a mounting hole for mounting the first rotating shaft 10. The two massage assemblies 20 are located between the two first mounting seats 11.

[0045] With reference to the accompanying drawings Figure 2 The massage core further comprises a second driving assembly, two nuts 50 and two studs 60. Each nut 50 is connected to a massage assembly 20. The stud 60 comprises a gear portion 61 and an external threaded portion 62 connected together, the external threaded portion 62 of each stud 60 is screwed into a nut 50, the gear portion 61 is located on the side of the external threaded portion 62 away from the adjacent nut 50, and the first rotating shaft 10 passes through each stud 60, each nut 50 and each massage assembly 20. The second driving assembly comprises a second mounting seat 41, a second rotating shaft 42, a first transmission gear 43, two second transmission gears 44, a second driving member 45 and a third transmission gear 46. The second mounting seat 41 is disposed opposite the gap between the two studs 60 and comprises two mounting arms 411 spaced apart. The second rotating shaft 42 is rotatably disposed through each mounting arm 411, the first transmission gear 43 is located between the two second transmission gears 44 and all of them are mounted on the second rotating shaft 42, each second transmission gear 44 is disposed on the side of a mounting arm 411 opposite the adjacent stud 60, and the second transmission gear 44 is in transmission with the gear portion 61, so that the stud 60 can rotate around the first rotating shaft 10, thereby driving the nut 50 to move the massage assembly 20 along the axial direction of the first rotating shaft 10. The second transmission gear 44 can be directly engaged with the gear portion 61 for example, and the second transmission gear 44 can also be engaged with the gear portion 61 through an additional gear. The second driving member 45 is disposed beside the second rotating shaft 42 and is used for driving the third transmission gear 46 to rotate, the third transmission gear 46 is in transmission with the first transmission gear 43 to drive the second rotating shaft 42 and the second transmission gears 44 to rotate, so that the second transmission gears 44 drive the studs 60 to rotate around the first rotating shaft 10 through the gear portion 61, and then drive the nuts 50 to move along the axial direction of the first rotating shaft 10 through the action of the external threaded portion 62 and the internal threads of the nut 50, thereby enabling the massage assemblies 20 to move along the axial direction of the first rotating shaft 10, so that the distance between the two massage assemblies 20 can be adjusted. The third transmission gear 46 can be engaged with the first transmission gear 43 for example. The second driving member 45 can comprise a motor for example.

[0046] In the application, the massage core is additionally provided with a second driving assembly, two nuts 50 and two studs 60. The nut 50 is connected to the massage assembly 20, and the outer threaded part 62 of the stud 60 is screwed into the nut 50. The second driving member 45 is used to drive the third transmission gear 46 to rotate to drive the second rotating shaft 42 and the second transmission gear 44 through the first transmission gear 43, and then drive the gear part 61 through the second transmission gear 44, so as to drive the massage assembly 20 to move along the axial direction of the first rotating shaft 10 through the nut 50. Therefore, the massage core provided by the application is beneficial to adjusting the massage interval, thereby improving the massage experience and the fitting degree. In addition, the movement of the nut 50 is realized through different threads or meshing structures, so as to improve the adjustment stability and the adjustment accuracy.

[0047] In some embodiments, referring to Figure 2 and Figure 3 , the second driving assembly further includes two first connecting shafts 47 and two fourth transmission gears 48. Each first connecting shaft 47 is protruded on one side end of an installation arm 411 adjacent to a second transmission gear 44. For example, the first connecting shaft 47 can be fixed to the fixing hole provided on the installation arm 411. Each fourth transmission gear 48 is installed on a first connecting shaft 47, and the fourth transmission gear 48 is in transmission engagement between the second transmission gear 44 and the gear part 61. The transmission through the fourth transmission gear 48 is beneficial to reducing the transmission ratio, matching high-speed rotation, improving the control accuracy, and prolonging the service life.

[0048] In some embodiments, referring to Figure 2 , the adjacent gear part 61, fourth transmission gear 48 and second transmission gear 44 are arranged in a triangular distribution, thereby improving the integrated compactness.

[0049] In some embodiments, referring to Figure 2 and Figure 3The stud 60 further comprises a limiting portion 63, which comprises a first portion 631 and a second portion 632, the second portion 632 being connected between the first portion 631 and an end face of the gear portion 61 away from the external thread portion 62 to form a first annular groove 630. Exemplarily, the different portions of the stud 60 can be integrally formed. The mounting arm 411 is recessed relative to an end face of the first rotating shaft 10 to form a receiving groove 410, a bottom wall of the receiving groove 410 is protruded with a limiting protrusion 412 adjacent to the stud 60, and the bottom wall of the receiving groove 410 is further recessed to form a limiting groove 401, which is spaced apart from the limiting protrusion 412. The massage core further comprises two bearings 70, each of which is installed on the first rotating shaft 10 and located in a receiving groove 410, and a limiting protruding ring 71 is protruded on a circumferential surface of the bearing 70, which is clamped in the limiting groove 401. The first portion 631 abuts between the bearing 70 and the limiting protrusion 412, and the limiting protrusion 412 is further arranged in the first annular groove 630. The cooperation of the stud 60 and the bearing 70 is beneficial to improve the stability of the stud 60, and is also beneficial to improve the bearing strength of the first rotating shaft 10.

[0050] In some embodiments, with reference to Figure 4 The outer surface of the nut 50 has an abutting first region 51 and a second region 52, the second region 52 being arranged more close to the adjacent first mounting seat 11, and the second region 52 is arranged protruding from the first region 51 away from the first rotating shaft 10. With reference to Figures 1 to 2 、 Figure 5The massage assembly 20 comprises a first eccentric wheel 21, a second eccentric wheel 22 and a first massage member 23. The first eccentric wheel 21 comprises a first wheel part 211 and a second wheel part 212 which are detachably connected. The first wheel part 211 and the second wheel part 212 enclose a sleeve which is sleeved on the first area 51. The second eccentric wheel 22 is connected to one end of the first eccentric wheel 21 to jointly form a second annular groove 220. The second eccentric wheel 22 is detachably connected to the first eccentric wheel 21 by a connecting nail. The second annular groove 220 is arranged around the first rotating shaft 10. The second eccentric wheel 22 has a connecting hole 221 through which the first rotating shaft 10 passes. The connecting hole 221 has a limiting hole area 2211 which covers a part of the end surface of the first eccentric wheel 21. The second area 52 is fixed in the limiting hole area 2211. The end of the first wheel part 211 away from the second eccentric wheel 22 can be recessed to form a mounting hole. A part of the second wheel part 212 can protrude into the mounting hole. The second wheel part 212 and the first wheel part 211 can be detachably connected by a connecting nail, thereby realizing the detachable connection of the two wheel parts. It can be understood that the detachable connection of different wheel parts can also be realized by a buckle. The second annular groove 220 can be arranged perpendicular to the axial direction of the first rotating shaft 10 or can be arranged inclined to the axial direction of the first rotating shaft 10. The bottom wall of the second annular groove 220 is arranged through one end of the first massage member 23. The above structure facilitates to ensure the stability of the connection between the massage assembly 20 and the nut 50 and facilitates assembly.

[0051] In some embodiments, with reference to Figure 1 and Figure 4 The massage assembly 20 further comprises a third eccentric wheel 24 and a second massage member 25. The third eccentric wheel 24 is connected to one end of the second eccentric wheel 22 away from the first eccentric wheel 21 to jointly form a third annular groove 240. The third eccentric wheel 24 is detachably connected to the second eccentric wheel 22 by a connecting nail. The third annular groove 240 is arranged around the first rotating shaft 10. The bottom wall of the third annular groove 240 is arranged through one end of the second massage member 25. One of the third annular groove 240 and the second annular groove 220 is arranged perpendicular to the first rotating shaft 10, and the other is arranged inclined to the first rotating shaft 10, thereby facilitating to increase the massage points of the massage assembly 20 to improve the massage efficiency and the use comfort. In the present embodiment, the third annular groove 240 is arranged inclined to the first rotating shaft 10, and the second annular groove 220 is arranged perpendicular to the first rotating shaft 10.

[0052] In some embodiments, with reference to Figure 4 and Figure 5The second massage member 25 comprises a connecting portion 251 and two massage portions 252. The bottom wall of the third annular groove 240 penetrates one end of the connecting portion 251, and the two massage portions 252 are arranged not in line, and the massage portions 252 are connected to the end of the connecting portion 251 away from the third annular groove 240, and the two massage portions 252 are arranged towards different sides of the first rotating shaft 10, thereby facilitating further increase of the massage points.

[0053] In some embodiments, with reference to Figure 1 and Figure 2 The first driving assembly 30 further comprises a fifth transmission gear 32 mounted on the first rotating shaft 10. The fifth transmission gear 32 is arranged between the two mounting arms 411. The first driving member 31 has an output shaft in a screw structure. The screw structure is arranged perpendicularly to the first rotating shaft 10, and the screw structure drives the fifth transmission gear 32 to rotate the first rotating shaft 10. For example, the screw structure can directly engage with the fifth transmission gear 32 or drive the fifth transmission gear 32 through other gears.

[0054] In some embodiments, the first driving assembly 30 further comprises a second connecting shaft (not shown) and a sixth transmission gear 33. The second connecting shaft is rotatably mounted between the two mounting arms 411. For example, the second connecting shaft can be arranged through the mounting arms 411, or the mounting arms cooperate with the pressure seat to form mounting holes to mount the second connecting shaft. The sixth transmission gear 33 is mounted on the second connecting shaft, and the sixth transmission gear 33 comprises a first transmission portion 331 and a second transmission portion 332 arranged in layers, the first transmission portion 331 engages with the screw structure, and the second transmission portion 332 engages with the fifth transmission gear 32. The structure of the first driving assembly 30 facilitates improvement of driving accuracy and stability.

[0055] The application also provides a massage instrument, which comprises a shell 80 and a massage core capable of electrically adjusting massage spacing. The shell 80 is connected to the first mounting seat 11 and the second mounting seat 41, and the first driving member 31 is mounted on the second mounting seat 41 or the shell 80. The second driving member 45 is mounted on the second mounting seat 41 or the shell 80. In this embodiment, the first driving member 31 is mounted on the second mounting seat 41. Specifically, the second mounting seat 41 further comprises a connecting arm connected to the two mounting arms 411, and the output shaft of the first driving member 31 can penetrate the connecting arm. The second driving member 45 can be mounted on the shell 80.

[0056] The above-mentioned embodiments are only preferred embodiments of the utility model, and cannot be used to limit the range of protection of the utility model. Any non-essential changes and replacements made by those skilled in the art on the basis of the utility model all belong to the range of protection required by the utility model.

Claims

1. A massage mechanism with electrically adjustable massage spacing, comprising a first rotating shaft, two first mounting seats, two massage components, and a first drive assembly, wherein the first drive assembly includes a first drive member for driving the first rotating shaft to rotate, the first rotating shaft is rotatably connected between the two first mounting seats, and the two massage components are located between the two first mounting seats, characterized in that, The massage mechanism further includes a second drive assembly, two nuts and two studs. Each nut is connected to a massage assembly. Each stud includes a gear portion and an external thread portion connected together. The external thread portion of each stud is screwed into a nut. The gear portion is located on the side of the external thread portion away from the adjacent nut. The first rotating shaft passes through each stud, each nut and each massage assembly. The second drive assembly includes a second mounting base, a second rotating shaft, a first transmission gear, two second transmission gears, a second drive member, and a third transmission gear. The second mounting base is spaced apart from the two studs and includes two spaced-apart mounting arms. The second rotating shaft rotatably passes through each of the mounting arms. The first transmission gear is located between the two second transmission gears, and all three are mounted on the second rotating shaft. Each second transmission gear is located on one side of a mounting arm opposite to the adjacent stud. The second transmission gear drives the gear portion, allowing the stud to rotate around the first rotating shaft, thereby driving the nut to move the massage assembly axially along the first rotating shaft. The second drive member is located beside the second rotating shaft and is used to drive the third transmission gear to rotate. The third transmission gear drives the first transmission gear to drive the second rotating shaft and the second transmission gear to rotate.

2. The massage mechanism as described in claim 1, characterized in that, The second driving component also includes: Two first connecting shafts, each first connecting shaft protruding from one end of a mounting arm adjacent to a second transmission gear; and Two fourth transmission gears, each of which is mounted on a first connecting shaft, are engaged between the second transmission gear and the gear section.

3. The massage mechanism as described in claim 2, characterized in that, The adjacent gear sections, the fourth transmission gear, and the second transmission gear are arranged in a triangular distribution.

4. The massage mechanism as described in claim 1, characterized in that, The stud also includes a limiting part, which includes a first part and a second part. The second part is connected between the first part and the end face of the gear part that is away from the external thread part to form a first annular groove. The mounting arm is recessed at the end face of the first rotating shaft to form a receiving groove. The bottom wall of the receiving groove is provided with a limiting protrusion adjacent to the stud. The bottom wall of the receiving groove is also recessed to form a limiting groove. The limiting groove is spaced apart from the limiting protrusion. The massage mechanism also includes two bearings, each bearing is installed on the first rotating shaft and located in one of the receiving grooves, the circumferential surface of the bearing is provided with a limiting protrusion ring, the limiting protrusion ring is engaged in the limiting groove, the first part abuts between the bearing and the limiting protrusion, and the limiting protrusion is also provided in the first annular groove.

5. The massage mechanism as described in claim 1, characterized in that, The first driving component also includes: The fifth transmission gear is mounted on the first rotating shaft and is located between the two mounting arms; The first driving component has an output shaft with a screw structure, the screw structure being perpendicular to the first rotating shaft, and the screw structure being driven by the fifth transmission gear to drive the first rotating shaft to rotate.

6. The massage mechanism as described in claim 5, characterized in that, The first driving component also includes: A second connecting shaft is rotatably mounted between the two mounting arms; and The sixth transmission gear is mounted on the second connecting shaft. The sixth transmission gear includes a first transmission part and a second transmission part stacked together. The first transmission part meshes with the screw structure, and the second transmission part meshes with the fifth transmission gear.

7. The massage mechanism as described in claim 1, characterized in that, The outer surface of the nut has an adjacent first region and a second region, the second region being disposed closer to the adjacent first mounting base, and the second region being disposed away from the first rotating shaft and protruding from the first region. The massage component includes: A first eccentric wheel, comprising a detachably connected first wheel portion and a second wheel portion, the first wheel portion and the second wheel portion being fitted together to enclose the first region; and A second eccentric wheel is connected to one end of the first eccentric wheel to jointly form a second annular groove. The second annular groove is arranged around the first rotating shaft. The second eccentric wheel has a connecting hole through which the first rotating shaft passes. The connecting hole has a limiting hole area covering a portion of the end face of the first eccentric wheel, and the second area is fixed within the limiting hole area. The first massage element has its bottom wall of the second annular groove passing through one end of the first massage element.

8. The massage mechanism as described in claim 7, characterized in that, The massage component also includes: A third eccentric wheel is connected to the end of the second eccentric wheel away from the first eccentric wheel to jointly form a third annular groove, the third annular groove being arranged around the first rotating shaft; and The second massage element has its bottom wall of the third annular groove passing through one end of the second massage element. One of the third annular groove and the second annular groove is arranged perpendicular to the first rotating shaft, and the other is arranged at an angle relative to the first rotating shaft.

9. The massage mechanism as described in claim 8, characterized in that, The second massage component includes: The connecting portion, wherein the bottom wall of the third annular groove passes through one end of the connecting portion; and Two massage sections are arranged not on the same line. The massage sections are connected to the end of the connecting section away from the third annular groove. The two massage sections are arranged facing different sides of the first rotating shaft.

10. A massager, comprising a housing, characterized in that, The massager further includes a massage mechanism with electrically adjustable massage interval as described in any one of claims 1 to 9, the housing is connected to the first mounting base and the second mounting base, the first driving member is mounted on the second mounting base or the housing, and the second driving member is mounted on the second mounting base or the housing.