A massage movement

By using the design of combining magnetic positioning pins and electromagnetic coils in the massage movement, the problem of orientation and positioning of massage head components in the prior art is solved, automatic rotation and fixation are achieved, and the massage effect and equipment efficiency are improved.

CN115399992BActive Publication Date: 2025-04-25SHANGHAI RONGTAI HEALTH TECHNOLOGY CORPORATION LIMITED
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Patent Information

Application Number
CN202110577761.3
Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Filing Date
2021-05-26
Publication Date
2025-04-25
Estimated Expiration
2041-05-26

AI Technical Summary

Technical Problem

The existing massage movements are difficult to change the orientation and positioning of the massage head assembly, which makes it difficult to effectively control and fix the massage head assembly, which may cause discomfort and damage.

Method used

The design of a magnetic positioning pin and two electromagnetic coils is adopted to drive the magnetic positioning pin to rotate through a magnetic field, and the rotation of the rotation shaft is restricted by the limiting groove, so as to realize the automatic rotation and fixation of the massage head assembly.

Benefits of technology

It effectively solves the problem of orientation and positioning of massage head components, realizes automatic rotation and fixation of massage head components, saves the setting of the fixing mechanism, and reduces the energy consumption of the electromagnetic coil.

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Abstract

The present invention provides a massage movement, comprising: a massage arm assembly is arranged on a frame; a massage arm driving member is arranged on the frame, and the massage arm driving member drives the massage arm assembly to move; the driving member is arranged on the frame, and the driving member drives the frame to move on the massage chair back through a transmission mechanism; the massage arm assembly comprises a massage arm, a massage head assembly, a rotating cylinder, a magnetic positioning pin, and two electromagnetic coils; a rotating cylinder is arranged on the massage arm; the rotating shaft of the massage head assembly is rotatably connected to the rotating cylinder; an electromagnetic coil is respectively arranged on both sides of the first radial direction of the rotating cylinder, and a limiting groove is respectively arranged on the inner wall of the rotating cylinder along both sides of the first radial direction; a hole is opened on one side of the rotating shaft along the first radial direction, and the magnetic positioning pin is slidably arranged in the hole; the invention arranges the magnetic positioning pin and cooperates with the two electromagnetic coils, so that when the magnetic positioning pin is located on the rotating shaft, the electromagnetic coil drives the magnetic positioning pin by applying a magnetic field, thereby driving the rotating shaft, and rotating and fixing the massage head assembly through the electromagnetic coil.
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Description

Technical Field

[0001] The invention relates to the field of massage equipment, in particular to a massage movement capable of automatically switching the working part of a massage head. Background Art

[0002] The massage movement is a device that performs massage actions on various parts of the human body. The part of the massage movement that contacts the human body is the massage head. The massage movement massages the human body through the movement of the massage head. At present, the massage heads of the massage movements on the market are mostly in the form of a single wheel. Although such a massage movement can be used on a massage chair to achieve a variety of massage actions, the massage techniques that can be achieved are limited due to the single form of the massage head.

[0003] Although the existing massage heads mention the use of magnetic drive to drive the rotation of the massage turntable, such as patent document CN204050198U, the circumferential rotation of the massage turntable is difficult to control under this method, which can easily cause the massage turntable to be out of position; it is not easy to effectively control the position of the massage head; and during the massage process, the massage turntable is likely to slip, thereby causing injury to the massage user. Summary of the invention

[0004] In view of the above-mentioned shortcomings of the prior art, an object of the present invention is to provide a massage movement for solving the problem in the prior art that it is difficult to change the orientation of the massage head assembly and the problem that the massage head assembly is difficult to position.

[0005] In order to achieve the above-mentioned and other related purposes, the present invention provides a massage movement, characterized in that it includes:

[0006] frame;

[0007] A massage arm assembly, the massage arm assembly for performing massage actions is arranged on the frame;

[0008] A massage arm driving member, the massage arm driving member is arranged on the frame, and the massage arm driving member drives the massage arm assembly to move;

[0009] A driving member, wherein the driving member is disposed on the frame, and the driving member drives the frame to move on the massage chair back through a transmission mechanism;

[0010] The massage arm assembly comprises a massage arm, a massage head assembly, a rotating cylinder, a magnetic positioning pin, and two electromagnetic coils; the massage arm is provided with the rotating cylinder; the rotating shaft of the massage head assembly is rotatably connected to the rotating cylinder; an electromagnetic coil is respectively provided on both sides of a first radial direction of the rotating cylinder, and a limiting groove is respectively provided on the inner wall of the rotating cylinder along both sides of the first radial direction; a hole is provided on one side of the rotating shaft along the first radial direction, and the magnetic positioning pin is slidably provided in the hole;

[0011] During the rotation process, the two electromagnetic coils are energized in the same direction, and the magnetic poles of the electromagnetic coil and the magnetic positioning pin are opposite; the magnetic positioning pin is pulled by the magnetic force to drive the rotating shaft to rotate until the magnetic poles of the electromagnetic coil are consistent with the magnetic poles of the magnetic positioning pin, and the hole is connected to the limit groove on one side; the magnetic positioning pin is pulled by the magnetic force and extends from the hole to the connected limit groove to limit the circumferential rotation of the rotating shaft; conversely, the opposite current direction is applied to the electromagnetic coil.

[0012] Preferably, the massage head assembly includes a rotating shaft, a spindle, a first massage wheel and a second massage wheel; the spindle passes through one end of the rotating shaft, and the other end of the rotating shaft is rotatably connected to the rotating cylinder; one end of the spindle is rotatably connected to the first massage wheel, and the other end of the spindle is rotatably connected to the second massage wheel. Preferably, the rotating cylinder includes two semi-annular structures; the two semi-annular structures are connected to form a cylinder, and the two ends of the cylinder are respectively provided with a bearing; the rotating shaft is installed in the bearing.

[0013] Preferably, the limiting groove is arranged at the center of the inner annular surface of the semi-annular structure.

[0014] Preferably, the outer ring surface of the semi-annular structure is provided with a winding frame, and the electromagnetic coil is sleeved on the winding frame.

[0015] Preferably, it also includes: a fixing cover; the fixing cover is bolted to one side of the massage arm; the massage arm and the fixing cover clamp the rotating drum and the two electromagnetic coils.

[0016] Preferably, the magnetic positioning pin comprises a pin portion and a columnar magnet; the pin portion is provided with a groove, and the columnar magnet is provided in the groove.

[0017] Preferably, the limiting groove is a tapered groove, and the tapered groove gradually narrows from the surface to the bottom; the shape of the pin portion matches the tapered groove.

[0018] Preferably, the invention further comprises: a spring, one end of the spring abuts against the pin portion, and the other end of the spring abuts against the inside of the hole.

[0019] Preferably, the hole is a blind hole, a stepped hole or a through hole with a plug.

[0020] As described above, a massage movement of the present invention has the following beneficial effects:

[0021] The invention sets a magnetic positioning pin and cooperates with two electromagnetic coils. When the magnetic positioning pin is located on the rotating shaft, the electromagnetic coil drives the magnetic positioning pin by applying a magnetic field, thereby driving the rotating shaft. Since the limiting grooves are set on both sides of the rotating drum, after the magnetic positioning pin rotates 180°, the magnetic positioning pin can automatically insert into the limiting groove under the drive of the magnetic force to limit the rotation of the rotating shaft, and the massage head assembly can be automatically fixed after the rotation is completed, saving the redundant fixing mechanism. In addition, the invention sets a spring in the hole to help the magnetic positioning pin to be plugged into the limiting groove, thereby saving the energy of the electromagnetic coil. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 Shown is a schematic diagram of a massage movement of the present invention;

[0023] Figure 2 An exploded view showing a massage arm assembly of a massage movement of the present invention;

[0024] Figure 3 A schematic diagram showing a semi-annular structure of a rotating drum and a winding frame of a massage movement of the present invention;

[0025] Figure 4 An exploded view showing a massage head assembly of a massage arm assembly of a massage movement of the present invention;

[0026] Figure 5 A cross-sectional view showing a magnetic positioning pin, a rotating drum, and a winding frame of a massage head assembly of a massage movement of the present invention;

[0027] Figure 6 A cross-sectional view showing a massage head assembly of a massage movement of the present invention, in which a magnetic positioning pin is inserted into a left limiting groove and the massage head assembly does not rotate;

[0028] Figure 7 A cross-sectional view showing a massage head assembly of a massage movement of the present invention, in which a magnetic positioning pin is moved into a hole and the massage head assembly does not rotate;

[0029] Figure 8 A cross-sectional view showing a massage head assembly of a massage movement of the present invention, in which a magnetic positioning pin is moved into a hole and the massage head assembly is rotated 45 degrees;

[0030] Fig. 9 A cross-sectional view showing a massage head assembly of a massage movement of the present invention, in which a magnetic positioning pin is moved into a hole and the massage head assembly is rotated 90 degrees;

[0031] Fig.10 A cross-sectional view showing a massage head assembly of a massage movement of the present invention, in which a magnetic positioning pin is moved into a hole and the massage head assembly is rotated 135 degrees;

[0032] Fig.11 The cross-sectional view shows a massage head assembly of a massage movement of the present invention, in which the massage head assembly is rotated 180° and the magnetic positioning pin is moved to the limiting groove on the right side.

[0033] Component number description

[0034] 1 Rack

[0035] 2 Massage arm assembly

[0036] 21 Massage Arms

[0037] 211 Fixed cover

[0038] 212 bearing locating groove

[0039] 22 Massage head assembly

[0040] 221 Shaft

[0041] 222 Spindle

[0042] 223 First Massage Wheel

[0043] 224 Second massage wheel

[0044] 225 holes

[0045] 23 Drum

[0046] 231 Semi-ring structure

[0047] 232 Bearings

[0048] 233 Limiting slot

[0049] 234 Winding rack

[0050] 235 Iron Core

[0051] 24 Magnetic locating pins

[0052] 241 Sales Department

[0053] 242 cylindrical magnet

[0054] 25 Solenoid coil

[0055] 26 Spring

[0056] 3 Massage arm drive

[0057] 4 Drive components

[0058] 41 Transmission mechanism

[0059] 411 Traveling axis

[0060] 412 Travel gear

[0061] 413 Guide shaft

[0062] 414 Guide wheel DETAILED DESCRIPTION

[0063] The following is a description of the implementation of the present invention by means of specific embodiments. Those skilled in the art can easily understand other advantages and effects of the present invention from the contents disclosed in this specification.

[0064] See also Figures 1 to 11 . It should be noted that the structures, proportions, sizes, etc. illustrated in the drawings of this specification are only used to match the contents disclosed in the specification for people familiar with this technology to understand and read, and are not used to limit the limiting conditions for the implementation of the present invention, so they have no substantial technical significance. Any modification of the structure, change in the proportional relationship, or adjustment of the size should still fall within the scope of the technical content disclosed by the present invention without affecting the effects and purposes that can be achieved by the present invention. At the same time, the terms such as "upper", "lower", "left", "right", "middle" and "one" quoted in this specification are only for the convenience of description, and are not used to limit the scope of the implementation of the present invention. Changes or adjustments in their relative relationships should also be regarded as the scope of the implementation of the present invention without substantially changing the technical content.

[0065] like Figure 1 As shown, the present invention provides a massage movement, characterized in that it includes:

[0066] Rack 1;

[0067] A massage arm assembly 2 for performing massage actions is arranged on the frame 1;

[0068] A massage arm driving component 3, which is disposed on the frame 1 and drives the massage arm assembly 2 to move;

[0069] A driving member 4, which is disposed on the frame 1, and drives the frame 1 to move on the massage chair back through a transmission mechanism 41;

[0070] The massage arm assembly 2 includes a massage arm 21, a massage head assembly 22, a rotating cylinder 23, a magnetic positioning pin 24, and two electromagnetic coils 25; the massage arm 21 is provided with a rotating cylinder 23; the rotating shaft 221 of the massage head assembly 22 is rotatably connected to the rotating cylinder 23; an electromagnetic coil 25 is respectively provided on both radial sides of the rotating cylinder 23, and a limiting groove 233 is respectively provided on both radial sides of the inner wall of the rotating cylinder 23; a hole 225 is radially provided on one side of the rotating shaft 221, and the magnetic positioning pin 24 is slidably provided in the hole 225;

[0071] Rotation process:

[0072] like Figure 6-10 As shown, when both electromagnetic coils 25 are not energized, as shown in Figure 6 As shown, the positioning pin 24 is inserted into the limiting groove 233, and the spring 26 holds the positioning pin 24. The two electromagnetic coils 25 are energized in the same direction, and the magnetic poles of the electromagnetic coils 25 and the magnetic positioning pin 24 are opposite, and the positioning pin 24 slides into the hole 225 and moves out of the limiting groove 233 on one side; Figure 8 As shown, the magnetic positioning pin 24 is driven by the repulsive effect of the magnetic force to drive the rotating shaft 221 to rotate until the magnetic poles of the electromagnetic coil 25 are consistent with the magnetic positioning pin 24, that is, Fig.11 As shown, the hole 225 is connected to the other side limit slot 233; the magnetic positioning pin 24 is attracted by the magnetic force and extends from the hole 225 to the other side limit slot 233, limiting the circumferential rotation of the rotating shaft 221. The above steps enable the massage head assembly 22 to rotate 180 degrees.

[0073] In order to restore the massage arm assembly 22 to its original position, it is necessary to apply opposite current directions to the two electromagnetic coils 25, so that the magnetism of the electromagnetic coils 25 and the magnetic positioning pins 24 are opposite again; the magnetic positioning pins 24 are acted upon by the magnetic force, thereby driving the rotating shaft 221 to rotate until the magnetic poles of the electromagnetic coils and the magnetic positioning pins 24 are consistent, and the hole 225 is connected to the limiting groove 233 on the other side; the magnetic positioning pins 24 are pulled by the magnetic force and extend from the hole 225 to the connected limiting groove 233, limiting the circumferential rotation of the rotating shaft 221. The above steps realize the reset of the massage head assembly 22 after a 180° rotation.

[0074] In order to be able to drive the frame 1 to move on the massage chair back through the transmission mechanism 41; specifically, the transmission mechanism is now set to include a traveling shaft 411 rotatably installed in the frame 1, and a traveling gear 412 installed at the left and right ends of the traveling shaft 411, and the traveling gear 412 is meshed with the rack track in the massage chair back; the transmission mechanism 41 also includes a guide shaft 413 parallel to the traveling shaft 411, and a guide wheel 414 installed at the left and right ends of the guide shaft 413, and the guide wheel 414 cooperates with the guide groove in the massage chair back; when the traveling shaft 411 drives the traveling gear 412 to rotate together, the traveling gear 412 is meshed with the rack track to make the traveling gear 412 move along the rack track, thereby realizing that the transmission mechanism 41 drives the massage movement to move along the massage chair back, and the guide wheel 414 provided can match the guide groove, thereby playing a guiding role and ensuring the smooth movement of the massage movement.

[0075] In order to achieve the massage of the user by the massage head assembly 22, as shown in FIG. Figure 4As shown, the massage head assembly 22 is now provided including a rotating shaft 221, a spindle 222, a first massage wheel 223 and a second massage wheel 224; the spindle 222 passes through one end of the rotating shaft 221, and the other end of the rotating shaft 221 is rotatably connected to the rotating cylinder 23; at this time, the middle part of the spindle 222 is fixed to the rotating shaft 221; one end of the spindle 222 is rotatably connected to the first massage wheel 223, and the other end of the spindle 222 is rotatably connected to the second massage wheel 224.

[0076] In order to facilitate the calculation of the moments on both sides of the rotating shaft 221 , the central axes of the spindle 222 and the rotating shaft 221 should intersect perpendicularly as much as possible; and the first massage wheel 223 and the second massage wheel 224 are respectively located on both sides of the rotating shaft 221 .

[0077] In order to facilitate the rotation of the rotating shaft 221, the weights of the first massage wheel 223 and the second massage wheel 224 are set to be inconsistent. The reason is that when the initial rotation occurs, the torque of the magnetic force is extremely small, which may cause the magnetic force to fail to drive the rotating shaft 221 to rotate. To compensate for this defect, the unbalanced weight on both sides of the spindle 222 can be used to drive the rotating shaft 221 to rotate.

[0078] In order to enable the first massage wheel 223 and the second massage wheel 224 to give different tactile sensations to the user, at least one of the shapes, hardness and temperature settings of the first massage wheel 223 and the second massage wheel 224 is significantly different from each other.

[0079] In order to further realize the smooth rotation of the rotating shaft 221 in the rotating drum 23; Figure 4 As shown, a bearing 232 is respectively provided at both ends of the rotating drum 23; one end of the rotating shaft 221 is rotatably connected to the two bearings 232. At the same time, in order to reduce the rotating friction of the rotating shaft 221 at the cylinder, the outer diameter of the rotating shaft 221 is set to be slightly smaller than the inner diameter of the rotating drum 23.

[0080] In order to facilitate the installation of the rotating drum 23 and to facilitate the arrangement of the rotating shaft 221 in the rotating drum 23, the rotating drum 23 is now arranged to be two half-ring structures 231, and the two half-ring structures 231 are connected to form a cylinder.

[0081] In order to allow the rotating shaft 221 to rotate under the magnetic field of the two electromagnetic coils 25, a hole 225 is provided on the rotating shaft 221, and a magnetic positioning pin 24 is arranged in the hole 225; under the magnetic field of the two electromagnetic coils 25, the magnetic positioning pin 24 will rotate, driving the rotating shaft 221 to rotate, and then the massage head assembly 22 will rotate. The hole 225 can be a blind hole, a stepped hole or a through hole with a plug.

[0082] In order to be able to achieve circumferential fixation of the massage head assembly 22 after rotating 180°; Figure 3 As shown, a limiting groove 233 is now provided at the center of the inner ring surface of the semi-annular structure 231; specifically, as Figure 4 and Figure 5 As shown, when the rotating shaft 221 rotates to a certain angle, the central axis of the limiting groove 233 will coincide with the central axis of the hole 225 of the rotating shaft 221 and the magnetic positioning pin 24; at this time, the magnetic positioning pin 24 can slide toward the limiting groove 233, one end of the magnetic positioning pin 24 is located in the limiting groove 233, and the other end of the magnetic positioning pin 24 is located in the hole 225, that is, the magnetic positioning pin 24 clamps the circumferential rotation of the rotating shaft 221.

[0083] In order to facilitate the electromagnetic coil 25 to be arranged outside the cylinder, a winding frame 234 is provided on the outer ring surface of the semi-annular structure 231, and the electromagnetic coil 25 is sleeved on the winding frame 234. In order to facilitate the electromagnetic coil 25 to directly absorb the magnetic positioning pin 24 into the limiting groove 233 on the same side and reduce the sliding friction of the magnetic positioning pin 24, the electromagnetic coil 25 and the limiting groove 233 are arranged in the same radial direction.

[0084] In order to increase the magnetic field strength of the electromagnetic coil 25 , a circular hole is provided in the winding frame 234 along its axial direction, and an iron core 235 is arranged in the circular hole; the iron core 235 concentrates the magnetic lines of force around the electromagnetic coil 25 so that the magnetic lines of force all flow through the iron core 235 .

[0085] In order to fix the rotating drum 23 and the electromagnetic coil 25 connected to the massage arm 21, and reduce the influence of external dust on the rotating drum and the electromagnetic coil; Figure 2 As shown, a fixed cover 211 is provided on one side of the massage arm 21 ; specifically, the four corners of the fixed cover 211 are fixed to one side of the massage arm 21 by bolt connection; and the massage arm 21 and the fixed cover 211 are combined to clamp the rotating drum 23 and the electromagnetic coil 25 .

[0086] In order to avoid the sliding of the bearing 232, Figure 2 As shown, the fixed cover 211 is provided with a bearing positioning groove 212. Similarly, the massage arm 21 is provided with a similar positioning groove 212 at a corresponding position to clamp the bearing 232.

[0087] In order to make the magnetic positioning pin 24 magnetic; Figure 4 As shown, specifically, the magnetic positioning pin 24 is now provided with a pin portion 241 and a columnar magnet 242; a columnar groove is provided at one end of the pin portion 241, and the columnar magnet 242 is provided in the groove; in order to effectively fix the columnar magnet 242 in the groove, adhesive can be applied in the groove to strengthen the fixation of the columnar magnet 242 in the groove.

[0088] In order to enable the magnetic positioning pin 24 to slide into the limiting groove 233 more smoothly, Figure 7 As shown, the limiting groove 233 is designed as a tapered groove, which gradually narrows from the surface to the bottom; the shape of the pin portion 241 matches the tapered groove.

[0089] In order to compensate for the insufficient magnetic force of the electromagnetic coil 25 or a part of the magnetic force of the electromagnetic coil 25, preferably, a spring 26 is arranged in the hole 225; one end of the spring 26 abuts against the pin portion 241, and the other end of the spring 26 abuts against the inside of the hole 225; in this way, when the pin portion 241 is located in the hole 225, the spring 26 is compressed; and when the hole 225 is opposite to the limiting groove 233 on one side, the spring 26 will release elastic potential energy to press the pin portion 241 into the limiting groove 233, thereby completing the circumferential positioning of the rotating shaft 221.

[0090] In summary, the present invention sets a magnetic positioning pin 24 and cooperates with two electromagnetic coils 25, so that when the magnetic positioning pin 24 is located at the rotating shaft 221, the electromagnetic coil 25 can drive the magnetic positioning pin 24 by applying a magnetic field, thereby driving the rotating shaft 221; because the limiting grooves 233 are set on both sides of the rotating cylinder 23, after the magnetic positioning pin 24 rotates 180°, the magnetic positioning pin 24 can automatically insert into the limiting groove 233 under the drive of the magnetic force, and limit the rotation of the rotating shaft 221, so that the massage head assembly can be automatically fixed after the rotation is completed, saving the redundant fixing mechanism. In addition, the present invention sets a spring 26 in the hole 225 to help the magnetic positioning pin 24 plug in the limiting groove 233, thereby saving the energy of the electromagnetic coil 25.

[0091] Therefore, the present invention effectively overcomes various shortcomings in the prior art and has high industrial utilization value.

[0092] The above embodiments are merely illustrative of the principles and effects of the present invention, and are not intended to limit the present invention. Anyone familiar with the art may modify or alter the above embodiments without departing from the spirit and scope of the present invention. Therefore, all equivalent modifications or alterations made by a person of ordinary skill in the art without departing from the spirit and technical concept disclosed by the present invention shall still be covered by the claims of the present invention.

Claims

1. A massage movement, characterized in that: include: Rack (1); A massage arm assembly (2) for performing a massage action, the massage arm assembly (2) being arranged on the frame (1); A massage arm driving component (3), wherein the massage arm driving component (3) is arranged on the frame (1), and the massage arm driving component (3) drives the massage arm assembly (2) to move; The massage arm assembly (2) comprises a massage arm (21), a massage head assembly (22), a rotating cylinder (23), a magnetic positioning pin (24), and an electromagnetic coil (25); the massage arm (21) is provided with the rotating cylinder (23); the massage head assembly (22) comprises a rotating shaft (221), a spindle (222), a first massage wheel (223), and a second massage wheel (224); the rotating shaft (221) of the massage head assembly (22) is rotatably connected to the rotating cylinder (23); an electromagnetic coil (25) is respectively provided on both radial sides of the rotating cylinder (23), and the rotating cylinder (23) is provided with a magnetic positioning pin (24 ... The inner wall of the rotating shaft (23) is provided with a limiting groove (233) on both sides along the radial direction; a hole (225) is opened on one side of the rotating shaft (221) along the radial direction, and the magnetic positioning pin (24) is slidably arranged in the hole (225); the magnetic positioning pin (24) includes a pin portion (241) and a columnar magnet (242); the pin portion (241) is provided with a groove, and the columnar magnet (242) is arranged in the groove; the limiting groove (233) is a conical groove, and the conical groove gradually narrows from the surface to the bottom; the shape of the pin portion (241) matches the conical groove.

2. A massage movement according to claim 1, characterized in that: The spindle (222) is mounted on one end of the rotating shaft (221), and the other end of the rotating shaft (221) is rotatably connected to the rotating cylinder (23); one end of the spindle (222) is rotatably connected to the first massage wheel (223), and the other end of the spindle (222) is rotatably connected to the second massage wheel (224).

3. A massage movement according to claim 1, characterized in that: The rotating cylinder (23) comprises two semi-annular structures (231); the two semi-annular structures (231) are connected to form a cylinder, and a bearing (232) is respectively provided at both ends of the cylinder; the rotating shaft (221) is installed in the bearing (232).

4. A massage movement according to claim 3, characterized in that: The limiting groove (233) is arranged at the center of the inner annular surface of the semi-annular structure (231).

5. A massage movement according to claim 3, characterized in that: The outer ring surface of the semi-annular structure (231) is provided with a winding frame (234), and the electromagnetic coil (25) is sleeved on the winding frame (234).

6. A massage movement according to claim 1, characterized in that: Also includes: A fixed cover (211); the fixed cover (211) is bolted to one side of the massage arm (21); the massage arm (21) and the fixed cover (211) clamp the rotating cylinder (23) and the two electromagnetic coils (25).

7. A massage movement according to claim 1, characterized in that: Also includes: A spring (26), one end of the spring (26) abuts against the pin portion (241), and the other end of the spring (26) abuts against the inside of the hole (225).

8. A massage movement according to claim 1, characterized in that: The hole (225) is a blind hole, a stepped hole or a through hole with a plug.

Citation Information

Patent Citations

  • Health care massage chair

    CN204050198U

  • Massage machine core

    CN215385738U