A massage mechanism and massage chair

Abstract

This application provides a massage mechanism and a massage chair, relating to the field of massage equipment technology. It includes: a trolley assembly and a kneading assembly mounted on the trolley assembly, the kneading assembly and the trolley assembly being rotatably connected; the kneading assembly includes a kneading curved arm mechanism, the kneading curved arm mechanism including a kneading connecting rod and a massage arm, the massage arm and the kneading connecting rod being rotatably connected, and a sliding structure is further provided between the massage arm and the kneading connecting rod to allow the massage arm and the kneading connecting rod to have a fixed integrated state and a relatively movable state. The kneading curved arm mechanism can freely switch between a fixed curved arm and a movable curved arm to suit the needs of different users, with a wide range of applications, thereby improving user satisfaction.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of massage equipment, in particular to a massage core and a massage chair. BACKGROUND

[0002] With the improvement of living standards, massage has become a leisure way for people to relax after heavy work, therefore, more and more massage products appear on the market, especially for the office workers who keep typing posture for a long time, the demand for comfortable shoulder and neck massage products is increasing.

[0003] The current massage function has reached the function of kneading and knocking, the existing massage core with kneading and knocking technology, some massage arms connected with massage heads and kneading links are hinged, the massage head of this structure is attached to the human body curve, the massage body feeling is more comfortable, but the force is lighter; some massage arms connected with massage heads and kneading links are fixed or integrated as a part, the massage is realized through the kneading rotating shaft, the massage structure of this massage ball has poor attachment, but the massage force is large, which is too heavy for some people and is not comfortable. Thus, it is difficult to meet the needs of different users, and the user experience is low. SUMMARY

[0004] The purpose of the embodiment of the present application is to provide a massage core and a massage chair, the massage arm and the kneading link in the curved arm structure have a fixed integrated state and a relative active state, the curved arm is freely switched between the fixed curved arm and the active curved arm to meet the needs of different users.

[0005] In one aspect of the embodiment of the present application, a massage core is provided, which comprises a trolley assembly and a kneading assembly arranged on the trolley assembly, the kneading assembly and the trolley assembly are rotationally connected;

[0006] The kneading assembly comprises a kneading curved arm mechanism, the kneading curved arm mechanism comprises a kneading link and a massage arm, the massage arm and the kneading link are rotationally connected, and a sliding structure is further arranged between the massage arm and the kneading link, so that the massage arm and the kneading link have a fixed integrated state and a relative active state.

[0007] Optionally, the kneading assembly further comprises a kneading box mechanism, the kneading box mechanism comprises a radial rack; the trolley assembly comprises a three-dimensional mechanism, the three-dimensional mechanism comprises a radial motor, a radial reduction box and a radial gear which are sequentially transmissionally connected, the radial gear and the radial rack are engaged to drive the kneading assembly to act.

[0008] Optionally, one end of the kneading assembly is hinged with the trolley assembly, and the other end is engaged with the radial rack and the radial gear, and the radial rack is provided with a rotating shaft at one end of the hinged position.

[0009] Optionally, the kneading linkage includes two opposing reinforcing plates, and the massage arm is clamped between the two reinforcing plates and rotatably connected to the two reinforcing plates so that the massage arm rotates around the kneading linkage.

[0010] Optionally, the massage arm rotates around the rotation point of the kneading link. The sliding structure includes a locking motor located near the rotation point. The locking motor is fixed to the kneading link via a motor mounting bracket. An eccentric block is also fixed to the locking motor. A sliding locking piece is provided in the groove of the motor mounting bracket. The eccentric block and the sliding locking piece abut against each other. The locking motor drives the eccentric block to move, so that the sliding locking piece and the kneading link are in a locked or disengaged state.

[0011] Optionally, the sliding locking plate is provided with a guide hole, the kneading connecting rod is provided with a fixing post, and the eccentric block drives the sliding locking plate to move along the slide groove so that the guide hole and the fixing post can engage or disengage.

[0012] Optionally, the eccentric block includes an eccentric wheel or a cam.

[0013] Optionally, the sliding structure further includes a compression spring, one end of which is located on the kneading connecting rod and the other end is disposed on the sliding locking plate.

[0014] Optionally, it also includes a tension spring disposed on one side of the kneading link, one end of the tension spring being fixed to the massage arm and the other end being fixed to the kneading link, so that after the massage arm rotates, the tension spring causes the massage arm to return to its original position.

[0015] In another aspect of this application, a massage chair is provided, comprising: a seat, on which a track is provided, and the aforementioned massage mechanism is arranged along the track.

[0016] The massage mechanism and massage chair provided in this application embodiment have a kneading component and a carriage component that are rotatably connected. The carriage component can drive the kneading component to rotate, thereby driving the kneading curved arm mechanism of the kneading component to move up and down to achieve 3D motion of the mechanism. The kneading curved arm mechanism includes a kneading connecting rod and a massage arm, which are rotatably connected. A sliding structure is also provided between the massage arm and the kneading connecting rod. The sliding structure can lock the massage arm, preventing it from flipping. The entire kneading curved arm mechanism becomes a fixed whole, giving the massage arm and the kneading connecting rod a fixed integrated state. In this state, the massage intensity is stronger, suitable for users who require a stronger massage intensity. For users who require a weaker massage intensity, the sliding structure can release the massage arm, allowing it to rotate freely around the kneading connecting rod. The massage arm and the kneading connecting rod have a relatively movable state, and the kneading curved arm mechanism forms a movable curved arm, reducing the massage intensity and making it suitable for users who require a weaker massage intensity. This application utilizes a sliding structure to allow the kneading arm mechanism to freely switch between a fixed arm and a movable arm, catering to the needs of different users and thus having a wide range of applications, thereby improving user satisfaction. Attached Figure Description

[0017] To more clearly illustrate the technical solutions of the embodiments of this application, the accompanying drawings used in the embodiments of this application will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this application and should not be regarded as a limitation of the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0018] Figure 1a This is one of the schematic diagrams of the massage mechanism structure provided in this embodiment;

[0019] Figure 1b This is the second schematic diagram of the massage mechanism structure provided in this embodiment;

[0020] Figure 2a This is the third schematic diagram of the massage mechanism structure provided in this embodiment;

[0021] Figure 2b This is a partial structural diagram of the massage mechanism provided in this embodiment;

[0022] Figure 2c This is a schematic diagram of the kneading box mechanism of the massage core provided in this embodiment;

[0023] Figure 3a This is one of the schematic diagrams of the kneading curved arm mechanism of the massage core provided in this embodiment;

[0024] Figure 3b This is the second schematic diagram of the kneading curved arm mechanism of the massage core provided in this embodiment;

[0025] Figure 4 This is the third schematic diagram of the kneading curved arm mechanism of the massage core provided in this embodiment;

[0026] Figure 5 This is the fourth schematic diagram of the kneading curved arm mechanism of the massage core provided in this embodiment;

[0027] Figure 6a This is one of the schematic diagrams of the motor fixing bracket structure of the massage mechanism provided in this embodiment;

[0028] Figure 6b This is the second schematic diagram of the motor fixing bracket structure of the massage mechanism provided in this embodiment;

[0029] Figure 7 This is a schematic diagram of the sliding lock plate structure of the massage mechanism provided in this embodiment;

[0030] Figure 8 This is a schematic diagram of the eccentric block structure of the massage mechanism provided in this embodiment.

[0031] Icons: 1-Cart assembly; 11-Walking assembly; 111-Walking motor; 112-Walking spindle; 113-Walking gear; 114-Walking drive wheel; 12-Driven assembly; 121-Driven shaft; 122-Control assembly; 13-Three-dimensional mechanism; 131-Radial motor; 132-Radial gearbox; 133-Radial shaft; 134-Radial gear; 2-Kneading assembly; 21-Kneading curved arm mechanism; 211-Kneading connecting rod; 212-Left reinforcing plate; 213-Right reinforcing plate; 214-Massage arm; 215-Motor mounting bracket; 215a-Guide groove; 215b-Slide groove ; 215c-Limiting step; 216-Compression spring; 217-Sliding locking plate; 217a-Guide hole; 217b-Guide step post; 217c-Groove; 218-Eccentric block; 218a-Eccentric hole; 219-Locking motor; 2110-Tension spring; 2111-Long stop bushing; 2113-Fixing post; 2114-Rotation through hole; 2115-Groove; 22-Striking mechanism; 23-Kneading box mechanism; 231-Kneading motor; 232-Radial rack; 233-Kneading shaft; 234-Worm shaft; 235-Striking shaft; 241-Ball joint connecting rod; 242-Hinge point. Detailed Implementation

[0032] The technical solutions in the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings.

[0033] In the description of this application, it should be noted that the terms "inner" and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the product is in use. They are used only for the convenience of describing this application and for simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application. Furthermore, the terms "first," "second," etc., are used only to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0034] It should also be noted that, unless otherwise explicitly specified and limited, the terms "setup" and "connection" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0035] As living standards improve, massagers have entered ordinary households. Currently, most massagers on the market only have rotation or rocking / kneading functions, with limited massage techniques, low comfort, and inability to effectively massage areas such as the shoulders and neck, resulting in a poor user experience.

[0036] To address the issue that existing massagers generally offer limited massage functions, resulting in low comfort, massage mechanisms incorporating kneading and tapping technologies have emerged on the market. Some models feature a massage arm connecting the massage head to a kneading rod, which is hinged. This structure allows the massage head to conform to the body's curves, providing a more comfortable massage, but the intensity is relatively light. Other models integrate the massage arm and kneading rod into a single component, using a kneading rotation axis for massage. This structure results in a less conforming massage ball but provides a stronger massage, which may be too intense and uncomfortable for some users. In other words, current massagers fail to meet the needs of diverse users.

[0037] To solve the above problems, please refer to the following: Figure 1a As shown, this application embodiment provides a massage mechanism, including a carriage assembly 1 and a kneading assembly 2 disposed on the carriage assembly 1, wherein the kneading assembly 2 and the carriage assembly 1 are rotatably connected;

[0038] The kneading assembly 2 includes a kneading curved arm mechanism 21, which includes a kneading connecting rod 211 and a massage arm 214. The massage arm 214 and the kneading connecting rod 211 are rotatably connected, and a sliding structure is also provided between the massage arm 214 and the kneading connecting rod 211 so that the massage arm 214 and the kneading connecting rod 211 have a fixed integrated state and a relatively movable state.

[0039] The massage mechanism includes a carriage assembly 1 and a kneading assembly 2; among which, such as Figure 2a As shown, the trolley assembly 1 includes a traveling assembly 11, which includes a traveling motor 111, a traveling main shaft 112, and a traveling gear 113 connected in sequence. The trolley assembly 1 also includes a driven assembly 12, which includes a driven shaft 121 and a control assembly 122. The traveling main shaft 112 is positioned inside the housing of the massage mechanism by bearings, and both ends of the traveling main shaft 112 are located outside the housing. There are two traveling gears 113, located at both ends of the traveling main shaft 112. A traveling drive wheel 114 is also provided on the traveling main shaft 112 outside the traveling gears 113. Both the traveling gears 113 and the traveling drive wheel 114 are located outside the housing. The output shaft of the traveling motor 111 is a worm shaft 234. A traveling transmission gear is sleeved in the middle of the traveling main shaft 112. The output shaft of the traveling motor 111 and the traveling transmission gear are connected by a reduction gear assembly. In the aforementioned walking assembly 11, the walking motor 111 drives the walking main shaft 112 to rotate via a reduction gear assembly. When the walking gear 113 and the walking drive wheel 114 at the end of the walking main shaft 112 rotate, they can drive the entire motor mechanism to move. The structure of the aforementioned trolley assembly 1 is prior art and will not be described in detail here.

[0040] The trolley assembly 1 also includes a three-dimensional mechanism 13, which includes a radial motor 131, a radial reduction gearbox 132, and a radial gear 134 connected in sequence. The radial motor 131 drives the radial reduction gearbox 132 via a belt, thereby driving the radial gear 134 on the radial shaft 133 to rotate. Through the meshing of the radial gear 134 and the radial rack 232 (located in the kneading box mechanism 23 of the kneading assembly 2), the kneading assembly 2 is driven to rotate, which in turn drives the kneading curved arm mechanism 21 to move up and down to realize the 3D action of the mechanism.

[0041] The kneading curved arm mechanism 21 includes a kneading link 211 and a massage arm 214. The massage arm 214 can rotate around the kneading link 211. The massage arm 214 can be locked by a sliding structure so that it cannot be flipped, and the entire kneading curved arm mechanism 21 becomes a fixed whole. The sliding structure can also release the massage arm 214 so that it can rotate freely around the kneading link 211, and the kneading curved arm mechanism 21 forms a movable curved arm.

[0042] Therefore, in the massage mechanism provided in this application embodiment, the kneading component 2 and the carriage component 1 are rotatably connected. The carriage component 1 can drive the kneading component 2 to rotate, thereby driving the kneading arm mechanism 21 of the kneading component 2 to move up and down to realize the 3D action of the mechanism. The kneading curved arm mechanism 21 includes a kneading connecting rod 211 and a massage arm 214. The massage arm 214 and the kneading connecting rod 211 are rotatably connected. A sliding structure is also provided between the massage arm 214 and the kneading connecting rod 211. The sliding structure can lock the massage arm 214, preventing it from flipping. The entire kneading curved arm mechanism 21 becomes a fixed whole, giving the massage arm 214 and the kneading connecting rod 211 a fixed integrated state. In this state, the massage intensity is stronger, suitable for users who require a stronger massage intensity. For users who require a weaker massage intensity, the sliding structure can release the massage arm 214, allowing it to rotate freely around the kneading connecting rod 211. The massage arm 214 and the kneading connecting rod 211 are in a relatively movable state, forming a movable curved arm. The massage intensity is reduced, suitable for users who require a weaker massage intensity. This application utilizes a sliding structure to allow the kneading arm mechanism 21 to freely switch between a fixed arm and a movable arm, thus adapting to the needs of different users and having a wide range of applications, thereby improving user satisfaction.

[0043] Furthermore, the kneading assembly 2 also includes a kneading housing mechanism 23 and a tapping mechanism 22. The tapping mechanism 22 is used to enable the massage core to have a tapping massage technique. The tapping mechanism 22 is connected to the kneading curved arm mechanism 21 via a tapping shaft 235. Figure 2c As shown, the kneading box mechanism 23 includes a radial rack 232, a body, a worm shaft 234, and a kneading shaft 233; wherein, the radial rack 232 is fixed to the body, the kneading shaft 233 is limited by a retaining spring, and the worm shaft 234 is limited and fixed by a retaining spring; the kneading motor 231 drives the worm shaft 234 to rotate through a pulley and belt, and the worm shaft 234 meshes with the worm wheel on the kneading shaft 233 to drive the kneading shaft 233 to rotate. Figure 2b As shown, one end of the kneading arm mechanism 21 is fixed to the kneading shaft 233, and the other end is hinged to the striking mechanism 22 via a ball joint connecting rod 241. The structures of the striking mechanism 22 and the kneading box mechanism 23 are existing technologies and will not be described in detail here.

[0044] The radial rack 232 meshes with the radial gear 134 in the three-dimensional mechanism 13, thereby enabling the kneading arm mechanism 21 of the kneading assembly 2 to move up and down along the radial rack 232, thus realizing the 3D movement of the mechanism.

[0045] One end of the kneading component 2 is hinged to the trolley component 1. Figure 1bThe diagram shows hinge point 242, which is hinged to the nut via a bolt shaft. The other end is engaged with radial rack 232 and radial gear 134. One end of radial rack 232 located at the hinge position is provided with a rotating shaft, so that radial rack 232 can rotate around the rotating shaft, thereby enabling the trolley assembly 1 to drive the kneading assembly 2 to rotate, and driving the kneading curved arm mechanism 21 to move up and down along the radial rack 232.

[0046] like Figure 3a As shown, the kneading link 211 includes two opposing reinforcing plates. The massage arm 214 is clamped between the two reinforcing plates and rotatably connected to them, allowing the massage arm 214 to rotate around the kneading link 211. The massage arm 214 is mounted on the kneading link 211, which has a rotation through hole 2114 and a groove 2115. The massage arm 214 is screwed and fixed to the kneading link 211 by screws and nuts, connecting and securing it to the left reinforcing plate 212, the right reinforcing plate 213, the long stop bushing 2111, and the short stop bushing (located on the opposite side of the long stop bushing 2111). The massage arm 214 can rotate freely around the rotation through hole 2114 on the kneading link 211.

[0047] The massage arm 214 rotates around the rotation point (rotation through hole 2114) of the kneading link 211. The sliding structure includes a locking motor 219 located near the rotation point. The locking motor 219 is fixed to the kneading link 211 via a motor fixing bracket 215. An eccentric block 218 is also fixed to the locking motor 219. A sliding locking piece 217 is provided in the slide groove 215b of the motor fixing bracket 215. The eccentric block 218 and the sliding locking piece 217 abut against each other. The locking motor 219 drives the eccentric block 218 to move, so that the sliding locking piece 217 and the kneading link 211 are in a locked or disengaged state.

[0048] like Figure 6a , Figure 6b As shown, the motor mounting bracket 215 is provided with a sliding groove 215b, a limiting step 215c and a guide protrusion 215a. The sliding locking piece 217 moves in the sliding groove 215b of the motor mounting bracket 215. During the movement, the guide protrusion 215a and the groove 217c on the sliding locking piece 217 cooperate to guide the movement of the sliding locking piece 217.

[0049] The locking motor 219 is connected to the eccentric block 218 via the motor shaft, such as... Figure 8 As shown, the eccentric block 218 has an eccentric hole 218a, and the motor shaft passes through the eccentric hole 218a; for example, the eccentric block 218 can be an eccentric wheel or a cam; Figure 4As shown, when the locking motor 219 rotates clockwise (counterclockwise), it drives the eccentric block 218 on the motor shaft to rotate. The eccentric block 218 pushes the sliding locking piece 217 to move in the slide groove 215b of the motor fixing bracket 215. The sliding locking piece 217 is provided with a guide hole 217a, a guide step post 217b and a groove 217c. The kneading connecting rod 211 is provided with a fixing post 2113 (see...). Figure 3b ), until the guide hole 217a on the sliding locking piece 217 ( Figure 7 As shown, the massage arm 214 is pushed onto the fixed post 2113 on the kneading link 211, thereby fixing the massage arm 214 and the kneading link 211 into a single, relatively stationary state.

[0050] Meanwhile, the sliding structure also includes a compression spring 216, which is sleeved on the guide step post 217b of the sliding locking plate 217. One end of the compression spring 216 is located on the kneading connecting rod 211, and the other end is located on the sliding locking plate 217. When the eccentric block 218 pushes the sliding locking plate 217 to move in the slide groove 215b of the motor fixing bracket 215, the compression spring 216 is also compressed during the movement of the sliding locking plate 217.

[0051] like Figure 5 As shown, when the locking motor 219 rotates in the reverse direction, it drives the eccentric block 218 on the motor shaft to rotate, releasing the sliding locking piece 217. The compressed spring 216 pushes the sliding locking piece 217 to move in the slide groove 215b of the motor fixing bracket 215 until the guide hole 217a on the sliding locking piece 217 disengages from the fixing post 2113 on the kneading connecting rod 211. Thus, after the massage arm 214 is separated from the kneading connecting rod 211, the massage arm 214 can rotate freely around the kneading connecting rod 211.

[0052] The sliding locking piece 217 is located in the groove 215b of the motor fixing bracket 215. One end of the compression spring 216 is located in the pre-made hole of the kneading connecting rod 211, and the other end is sleeved on the shaft of the sliding locking piece 217. When the sliding locking piece 217 is subjected to axial force, the sliding locking piece 217 will slide freely in the groove 215b of the motor fixing bracket 215, and at the same time, the sliding locking piece 217 will compress the compression spring 216. When the sliding locking piece 217 is not subjected to axial force, the compression spring 216 will push the sliding locking piece 217 along the groove 215b of the motor fixing bracket 215 to the limiting step 215c.

[0053] As can be seen, by controlling the forward and reverse rotation of the locking motor 219, the eccentric block 218 drives the sliding locking piece 217 to move along the slide groove 215b, so that the guide hole 217a on the sliding locking piece 217 and the fixed post 2113 on the kneading connecting rod 211 can be engaged or disengaged, which enables the massage arm 214 of the mechanism to switch freely between the fixed curved arm and the movable curved arm, thereby enriching the massage parts and massage methods to meet different needs.

[0054] In addition, a tension spring 2110 is included. The tension spring 2110 is disposed on one side of the kneading connecting rod 211. One end of the tension spring 2110 is fixed to the massage arm 214, and the other end is fixed to the kneading connecting rod 211, so that after the massage arm 214 rotates, the tension spring 2110 will return the massage arm 214 to its original position. After the massage arm 214 is rotated under force, the tension spring 2110 will return the massage arm 214 to its original position by its own tension.

[0055] In summary, the massage mechanism provided in this application not only has the massage effect of a movable curved arm mechanism, with the curved arm adapting to the body curves of different people, but also, by driving the locking motor 219 on the kneading curved arm mechanism 21, the eccentric block 218 on the locking motor 219 rotates. The eccentric block 218 pushes the sliding locking plate 217 to slide in the sliding groove of the motor fixing bracket 215, compressing the compression spring 216 in the kneading connecting rod 211, thereby pushing the guide hole 217a on the sliding locking plate 217 into the fixing post 2113 on the kneading connecting rod 211, thus locking the massage arm 214, preventing the massage arm 214 assembly from flipping, and making the entire kneading curved arm assembly a fixed whole, resulting in a stronger massage force, suitable for users who require a stronger massage force; this type of... When the massage intensity is not high for users, the locking motor 219 on the kneading arm mechanism 21 can be driven to rotate the eccentric block 218 on the locking motor 219. The compressed spring 216 pushes the sliding locking plate 217 to slide in the sliding groove of the motor fixing bracket 215, thereby separating the guide hole 217a on the sliding locking plate 217 from the fixing post 2113 on the kneading connecting rod 211, thus releasing the massage arm 214. The massage arm 214 can rotate freely around the kneading connecting rod 211, and the kneading arm mechanism 21 becomes a rotatable movable arm, resulting in a very low massage intensity. By driving the locking motor 219, the mechanism arm can be freely switched between a fixed arm and a movable arm, making the massage mechanism more widely applicable to meet the needs of different user groups.

[0056] On the other hand, when the aforementioned massage mechanism is applied to a massage chair, this application also discloses a massage chair, including a seat, a track on the seat, and a massage mechanism as described above arranged along the track.

[0057] This massage chair contains the same structure and beneficial effects as the massage mechanism in the foregoing embodiments. The structure and beneficial effects of the massage mechanism have been described in detail in the foregoing embodiments and will not be repeated here.

[0058] The above description is merely an embodiment of this application and is not intended to limit the scope of protection of this application. Various modifications and variations can be made to this application by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the scope of protection of this application.

Claims

1. A massaging movement, characterized in that, Comprise: The trolley assembly and the kneading assembly arranged on the trolley assembly, the kneading assembly and the trolley assembly are rotationally connected; The kneading assembly comprises a kneading crank mechanism, the kneading crank mechanism comprises a kneading connecting rod and a massage arm, the massage arm and the kneading connecting rod are rotationally connected, and a sliding structure is further arranged between the massage arm and the kneading connecting rod, so that the massage arm and the kneading connecting rod have a fixed integrated state and a relative active state; The massage arm rotates around the rotation point of the kneading connecting rod, the sliding structure comprises a locking motor arranged close to the rotation point, the locking motor is fixed on the kneading connecting rod through a motor fixing support, an eccentric block is further fixed on the locking motor, a sliding lock piece is arranged in the sliding groove of the motor fixing support, the eccentric block and the sliding lock piece abut, the eccentric block is driven to move by the locking motor, so that the sliding lock piece and the kneading connecting rod have a locking or separating state; The sliding lock piece is provided with a guide hole, the massage arm is provided with a fixing column, the eccentric block drives the sliding lock piece to move along the sliding groove, so that the guide hole and the fixing column are engaged or separated; The motor fixing support is further provided with a limiting step and a guide convex groove, during the movement of the sliding lock piece in the sliding groove of the motor fixing support, the guide convex groove and the groove on the sliding lock piece are matched, and the guide convex groove plays a guiding role when the sliding lock piece moves; The sliding structure further comprises a compression spring, one end of the compression spring is located on the kneading connecting rod, and the other end of the compression spring is arranged on the sliding lock piece; when the sliding lock piece is axially stressed, the sliding lock piece will freely slide in the sliding groove of the motor fixing support, and at the same time, the sliding lock piece will compress the compression spring; when the sliding lock piece is not axially stressed, the compression spring will push the sliding lock piece to the limiting step along the sliding groove of the motor fixing support.

2. The massing movement according to claim 1, characterized in that, The kneading assembly further comprises a kneading box mechanism, the kneading box mechanism comprises a radial rack; the trolley assembly comprises a three-dimensional mechanism, the three-dimensional mechanism comprises a radial motor, a radial reduction box and a radial gear which are sequentially transmissionally connected, the radial gear and the radial rack are engaged, so as to drive the kneading assembly to act.

3. The massing movement according to claim 2, characterized in that, One end of the kneading assembly and the trolley assembly are hinged, and the other end is engaged through the radial rack and the radial gear, and the radial rack is provided with a rotating shaft at one end of the hinged position.

4. The massing movement according to claim 1, wherein, The kneading connecting rod comprises two reinforcing plates which are oppositely arranged, the massage arm is clamped between the two reinforcing plates and rotationally connected with the two reinforcing plates, so that the massage arm rotates around the kneading connecting rod.

5. The massing movement according to claim 1, wherein, The eccentric block comprises an eccentric wheel.

6. The massing movement according to claim 1, wherein, The eccentric block comprises a cam.

7. The massing movement according to claim 1, wherein, Further comprising a tension spring, the tension spring is arranged on one side of the kneading connecting rod, one end of the tension spring is fixed on the massage arm, and the other end of the tension spring is fixed on the kneading connecting rod, so that the tension spring resets the massage arm after the massage arm rotates.

8. A massage chair, characterized by, Comprise a chair seat, the chair seat is provided with a track, and a massage core as claimed in any one of claims 1-7 is arranged along the track.

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