Massage interval distance adjustment configuration and core of shoulder and neck massage machine

Abstract

A massage interval distance adjustment configuration is provided. [Solution] The massage interval distance adjustment configuration includes an adjustment motor 81, an adjustment rolling component, two adjustment bolts 83, two adjustment seats 84, two connecting seats 85, and a position limiting mechanism. The adjustment rolling component is connected to the adjustment motor and the two adjustment seats, both of which are symmetrically mounted on the core long rotating shaft 6 of the massage machine. The adjustment seats have screws that are combined with the adjustment bolts, and one end of the adjustment bolt is connected to the adjustment seat, while the other end is connected to the connecting seat to fix the massage component. The position limiting mechanism includes conductive pins and conductive sheets, both of which are connected to the circuit board 4, and the conductive sheets operate synchronously with the adjustment bolts and are positioned between the two conductive pins. The adjustment motor is linked to rotate the adjustment seats in forward and reverse directions, thereby driving the adjustment bolts so that the drive massage component 7 moves inward and outward. When the conductive sheets contact the conductive pins, the circuit board controls the direction change of the control motor.

Description

Technical Field

[0001] The present invention relates to the technical field of massage machines, and particularly to a massage interval distance adjustment configuration and the core of a shoulder and neck massage machine.

Background Art

[0002] With the progress of society and the rapid development of technology, the pace of people's work and life is accelerating. People of all levels in society are running around seeking a better life and hardly have any time left for exercise. As a result, people's physical health indicators are declining. Among them, this situation has become particularly serious for office workers who sit in front of a computer for a long time and drivers who sit in the driver's seat. By sitting at a desk or staring at a computer for a long time, the muscles in the neck and shoulders become extremely tense, leading to poor blood circulation and being prone to diseases such as frozen shoulder and cervical spondylosis.

[0003] Currently, as auxiliary treatment devices for the above-mentioned health problems, many shoulder and neck massage machines have appeared on the market. With these devices, the muscles around the shoulder and neck can be massaged and relaxed in a short time, and the pain symptoms can be effectively alleviated by continuous use. However, the size of the shoulder and neck varies among individuals. Some people have relatively thick shoulder and neck areas, while others have relatively thin ones. Many existing shoulder and neck massage machines adopt a fixed massage form, and the distance between the left and right massage heads in the massage machine is fixed, so it cannot be adjusted according to the actual needs of users, limiting the suitable users.

Summary of the Invention

Problems to be Solved by the Invention

[0004] In light of this, this invention was conceived through meticulous planning and active research and development to solve the various shortcomings and inconveniences of conventional shoulder and neck massager configurations, which are still not perfectly designed.

[0005] The present invention aims to provide a massage interval adjustment configuration that allows adjustment of the distance between two massage components, in order to overcome the drawback of the prior art that the massage interval distance cannot be adjusted. [Means for solving the problem]

[0006] To achieve the above objective, the solution according to this invention is as follows.

[0007] The massage interval distance adjustment configuration includes an adjustment motor, an adjustment rolling component, two adjustment bolts, two adjustment seats, two connecting seats, and a position limiting mechanism. The adjustment rolling component is connected to the adjustment motor and the two adjustment seats. The two adjustment bolts, two adjustment seats, and two connecting seats are each symmetrically mounted on the long rotating shaft of the core of the massage machine. The adjustment seats are connected to the adjustment rolling component and have a female thread in the center. The adjustment bolts have male threads that combine with the female threads of the adjustment seats. One end of the adjustment bolt is connected to the adjustment seat, and the other end is fixed to the massage component via a connecting seat. The position limiting mechanism includes conductive pins and a conductive sheet. The conductive pins are connected to a circuit board, and the conductive sheet operates synchronously with the adjustment bolts. The distance between the two conductive pins is less than or equal to the length of the male threads of the adjustment bolts, and the conductive sheet is positioned between the two conductive pins.

[0008] Furthermore, the adjustment rolling component uses a gear group to achieve rolling motion and includes an adjustment drive gear, an adjustment rolling shaft, and an adjustment rolling gear. The adjustment drive gear meshes with the output shaft of the adjustment motor, and the adjustment drive gear is fixedly installed at the central position of the adjustment rolling shaft. The adjustment rolling shaft has adjustment rolling gears at both ends, and the adjustment seat has an adjustment gear on its outer circumference that meshes with the adjustment rolling gear.

[0009] Furthermore, the adjustment rolling shaft is provided with bearings between the adjustment drive gear and the two adjustment rolling gears, the bearings are mounted on bearing seats, and the bearing seats are fixed to the housing.

[0010] Furthermore, the connecting seat includes a first engagement ring, a second engagement ring, and a connecting portion, the connecting portion having one end locked to a massage component, a first mounting ring on the other end, and a second mounting ring on the other end connected to the connecting seat on the adjustment bolt, the first engagement ring and the second engagement ring having engagement grooves corresponding to the first mounting ring and the second mounting ring, and fixing the massage component and the adjustment bolt by restricting the position of the first mounting ring and the second mounting ring to the engagement grooves when the first engagement ring and the second engagement ring are engaged.

[0011] Furthermore, the conductive sheet is attached to a second engagement ring of the connecting seat, a guide rail extends from one end of an adjustment bolt in the second engagement ring, and a sheet socket extending from one end of a conductive pin is provided on the guide rail, and the conductive sheet is attached to the sheet socket.

[0012] Another objective of this invention is to provide a shoulder and neck massage machine core that allows adjustment of the massage interval distance, in order to overcome the drawback of the prior art that the massage interval distance cannot be adjusted.

[0013] To achieve the above objective, the solution according to this invention is as follows.

[0014] The core of the shoulder and neck massage machine includes a housing, a battery, a massage motor, a circuit board, massage rolling components, a long rotating shaft, massage components, and a massage interval distance adjustment configuration. The battery and massage motor are connected to the circuit board, respectively. The massage rolling components are connected to the massage motor and the long rotating shaft, and are linked by a gear rolling group to rotate the long rotating shaft. The two massage components are symmetrically mounted on the long rotating shaft. The adjustment motor is attached to the housing on one side of the long rotating shaft, and the conductive pins are attached to the housing.

[0015] Furthermore, the massage component includes a support rod, an eccentric wheel, an eccentric oscillating wheel, and an oscillating arm. A first position limiting column is provided at the bottom end of the support rod, and a second position limiting column is provided at the bottom end of the oscillating arm. The housing is provided with movable grooves for moving the first and second position limiting columns. The eccentric wheel has an eccentric hole, and a long position limiting groove communicating with the eccentric hole is provided. The long rotating shaft has two pin holes at positions corresponding to both ends of the long position limiting groove. The eccentric wheel and the long rotating shaft are fixed by inserting the position limiting pins into the two pin holes and the long position limiting groove. The support rod is circumferentially mounted on the eccentric wheel, and one end of the support rod is eccentric. The support rod is in contact with the eccentric wheel, and its other end is locked to the connection part of the connecting seat, and the connection part positions the support rod on the eccentric wheel. The eccentric wheel has one end connected to the support rod and the other end connected to the eccentric wheel connecting sheet, and the eccentric wheel connecting sheet fixes the eccentric oscillating wheel and the eccentric wheel. The eccentric oscillating wheel has one end fixed to the eccentric wheel connecting sheet and an eccentric oscillating shaft installed at the other end. The oscillating arm has an eccentric oscillating hole at one end that corresponds to the eccentric oscillating shaft, and the eccentric oscillating hole is provided around the eccentric oscillating shaft. An eccentric oscillating slope is formed at one end of the eccentric oscillating wheel that is away from the eccentric oscillating shaft, and an eccentric oscillating massage head is attached to the tip of the oscillating arm.

[0016] Furthermore, the massage rolling component includes a drive gear and a rolling gear, the drive gear being a composite gear having a helical gear and a spur gear, the helical gear meshing with the output shaft of the massage motor and the spur gear meshing with the rolling gear, and the rolling gear and the long rotating shaft being fixed together.

[0017] Furthermore, the minimum distance D1 between the two eccentric oscillating massage heads in the two massage components is ≥ 56 mm, the minimum distance D2 between the two support rods is ≥ 57 mm, the maximum distance D3 between the two eccentric oscillating massage heads is ≤ 133 mm, and the maximum distance D4 between the two support rods is ≤ 75 mm. [Effects of the Invention]

[0018] By adopting the above configuration, the shoulder and neck massage machine core according to the present invention, which is equipped with a massage interval distance adjustment configuration according to the present invention, is configured such that the adjustment rolling component and adjustment seat rotate in conjunction with the forward and reverse rotation of the adjustment motor. When the two adjustment seats are rotating, the two adjustment bolts that are paired with the screws move outward or inward. When the adjustment bolts are moving, the conductive sheet moves in conjunction with them. When the conductive sheet comes into contact with the conductive pins, the conductive pins become energized, and when the circuit board senses the energization signal, it causes the adjustment motor to change direction, thereby enabling the massage component to move left and right within the stroke range of the two conductive pins. The two massage components connected to the two adjustment bolts then move in conjunction to expand outward or contract inward, adjusting the width between the two massage components. When the two massage components are adjusted to the required width, the operation of the adjustment motor is stopped. This makes it possible to freely adjust the width within the length range of the two conductive sheets. The present invention can be adapted to consumers with different body types and can increase the range of application and market competitiveness of the shoulder and neck massage machine core. [Brief explanation of the drawing]

[0019] [Figure 1] This is a schematic diagram showing the core of the shoulder and neck massage machine according to the present invention, disassembled. [Figure 2] It is a schematic diagram showing a massage interval distance adjustment structure according to the present invention. [Figure 3] It is a schematic diagram showing, in a sectional view, a combination of cores of a shoulder and neck massage machine according to the present invention. [Figure 4] It is a schematic diagram showing a structure of an adjustment bolt and a connection seat according to the present invention. [Figure 5] It is a schematic diagram showing a disassembled structure of a massage component according to the present invention. [Figure 6] It is a schematic diagram showing an appearance with the narrowest massage interval distance according to the present invention. [Figure 7] It is a schematic diagram showing an appearance with the widest massage interval distance according to the present invention.

Embodiments for Carrying out the Invention

[0020] In order to further explain the technical solution according to the present invention, the present invention will be described in detail below based on specific embodiments.

[0021] In the description of the present invention, what is necessary for understanding is that terms indicating directions and positional relationships such as "center", "vertical direction", "horizontal direction", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "tip", "bottom", "inside", "outside", etc. are for indicating directions and positional relationships in the drawings, and are merely for simplifying the description of the present invention and the description, and do not explicitly or implicitly indicate that a specific configuration must be had by such devices or elements or that the configuration and operation must be performed in a specific direction. Therefore, it is not understood as a limitation to the present invention. In the description of the present invention, unless otherwise specified, the meaning of "a plurality" is two or more.

[0022] As shown in FIGS. 1 to 5, the present invention discloses the core of a shoulder and neck massage machine, which includes a housing 1, a battery 2, a massage motor 3, a circuit board 4, a massage rolling component 5, a long rotating shaft 6, a massage component 7, and a massage interval distance adjustment structure 8. The battery 2 and the massage motor 3 are respectively connected to the circuit board 4. The massage rolling component 5 is connected to the massage motor 3 and the long rotating shaft 6. The long rotating shaft 6 is interlocked to rotate by the massage rolling component 5. The two massage components 7 are symmetrically installed with respect to the long rotating shaft 6. The massage interval distance adjustment structure 8 includes an adjustment motor 81, an adjustment rolling component 82, two adjustment bolts 83, two adjustment seats 84, and two connection seats 85. The adjustment motor 81 is attached to the housing 1 on one side of the long rotating shaft 6. The adjustment rolling component 82 is connected to the adjustment motor 81 and the two adjustment seats 84. The two adjustment bolts 83, the two adjustment seats 84, and the two connection seats 85 are symmetrically installed with respect to the long rotating shaft 6 respectively. The adjustment seat 84 is connected to the adjustment rolling component 82 and has a female screw 841 at the center. The adjustment bolt 83 has a male screw 831 whose thread is combined with the female screw 841 of the adjustment seat 84. One end of the adjustment bolt 83 is connected to the adjustment seat 84, and the other end is fixed to the massage component 7 by the connection seat 85. By the forward and reverse rotation of the adjustment motor 81, the adjustment rolling component 82 is interlocked to operate. By the adjustment rolling component 82, the two adjustment seats 84 are interlocked to rotate forward and backward. When the adjustment seat 84 rotates, the adjustment bolt 83 is interlocked to approach or move away from the adjustment seat 84, and the two massage components 7 on the two adjustment bolts 83 are interlocked to approach or move away from each other, so that the size of the interval distance between the two massage components 7 can be changed, and the adjustment of the massage interval distance can be realized.

[0023] This invention involves installing an adjustment bolt 83 and an adjustment seat 84 on a long rotating shaft 6, connecting the adjustment bolt 83 to a massage component 7, and rotating the adjustment seat 84 by the drive of an adjustment rolling component 82. The screw rotates in conjunction with the adjustment bolt 83, which is connected to the adjustment seat 84, thereby adjusting the width of the massage component 7. When the adjustment bolt 83 moves to the outside of the long rotating shaft 6, the distance between the two massage components 7 gradually increases, and when the adjustment bolt 83 moves to the center of the long rotating shaft 6, the distance between the two massage components 7 gradually decreases. Users can adjust the distance between the two massage components 7 according to their needs, thereby increasing the applicability and market competitiveness of this invention.

[0024] The massage interval distance adjustment configuration 8 is further provided with a position limiting mechanism 86 for limiting the adjustment range of the adjustment bolt 83. In this embodiment, the position limiting mechanism 86 includes a conductive pin 861 and a conductive sheet 862, the conductive pin 861 being connected to a circuit board 4, the conductive sheet 862 and the adjustment bolt 83 operating synchronously, and the conductive sheet 862 may be attached to the adjustment bolt 83, or to a connecting seat 85 or a massage component 7, and is capable of reciprocating motion together with the adjustment bolt 83, the two conductive pins 861 being installed in the housing 1 and the conductive sheet 862 being positioned between the two conductive pins 861. When the adjustment bolt 83 moves, it is linked to the movement of the conductive sheet 862, and when the conductive sheet 862 comes into contact with the conductive pin 861, the conductive pin 861 becomes energized, and when the circuit board 4 senses the energization signal, it causes the adjustment motor 81 to change direction, thereby allowing the massage component 7 to move left and right within the stroke range of the two conductive pins 861, thereby adjusting the distance between the two massage components 7.

[0025] The adjustment rolling component 82 may be rolled by a gear group or by a belt pulley. As shown in Figures 1 and 2, in this embodiment, the adjustment rolling component 82 is driven by gears and includes an adjustment drive gear 821, an adjustment rolling shaft 822, and an adjustment rolling gear 823. The adjustment drive gear 821 meshes with the output shaft of the adjustment motor 81 and is fixedly installed at the central position of the adjustment rolling shaft 822. The adjustment rolling shaft 822 is connected to the adjustment rolling gears 823 at both ends. The adjustment seat 84 has an adjustment gear 842 on its outer circumference that meshes with the adjustment rolling gear 823. When driven by the adjustment motor 81, its output shaft causes the adjustment drive gear 821 to rotate in conjunction with it, the adjustment drive gear 821 causes the adjustment rolling shaft 822 and the adjustment rolling gear 823 to rotate synchronously, the adjustment rolling gear 823 causes the adjustment gear 842 that meshes with it to rotate in conjunction, and the adjustment bolt 83 and the adjustment seat 84 can be made to move relative to each other.

[0026] Preferably, a bearing 824 is provided between the adjustment drive gear 821 and the two adjustment rolling gears 823 on the adjustment rolling shaft 822, the bearing 824 is mounted on a bearing seat 825, and the bearing seat 825 is fixed to the housing 1. The bearings reduce the frictional resistance of the adjustment rolling shaft 822 and reduce energy consumption. Furthermore, the bearings 824 provide accurate radial and axial positioning to the adjustment rolling shaft 822, limiting radial and axial movement of the adjustment rolling shaft 822 and ensuring that the adjustment rolling shaft 822 rotates stably along a predetermined trajectory.

[0027] In this embodiment, the connecting seat 85 includes a first engagement ring 851, a second engagement ring 852, and a connecting portion 853. The connecting portion 853 has one end locked to the massage component 7, a first mounting ring 854 at the other end, and a second mounting ring 832 at the end connected to the connecting seat 85 on the adjustment bolt 83. The first engagement ring 851 and the second engagement ring 852 have engagement grooves 855 corresponding to the first mounting ring 854 and the second mounting ring 832. When the first engagement ring 851 and the second engagement ring 852 are engaged, the first mounting ring 854 and the second mounting ring 832 are restricted to the position of the engagement grooves 855, thereby fixing the massage component 7 and the adjustment bolt 83.

[0028] As shown in conjunction with Figure 4, there are multiple configurations for attaching the conductive sheet 862. In this embodiment, the conductive sheet 862 is attached to the second engagement ring 852 of the connecting seat 85, a guide rail 856 extends from one end of the adjustment bolt 83 in the second engagement ring 852, a seat socket 857 is provided on the guide rail 856 and extends from one end of the conductive pin 861, and the conductive sheet 862 is attached to the seat socket 857.

[0029] As shown in Figure 5, in this embodiment, the massage component 7 includes a support rod 71, an eccentric wheel 72, an eccentric oscillating wheel 73, and an oscillating arm 74. A first position limiting column 711 is provided at the bottom end of the support rod 71, and a second position limiting column 741 is provided at the bottom end of the oscillating arm 74. A movable groove 11 is provided in the housing 1 for moving the first position limiting column 711 and the second position limiting column 741. The eccentric wheel 72 is provided with an eccentric hole 721, and a position limiting groove 722 communicating with the eccentric hole 721 is further provided. Two pin holes are provided at positions corresponding to both ends of the position limiting groove 722 on the long rotating shaft, and the eccentric wheel 72 and the long rotating shaft 6 are fixed by inserting position limiting pins into the two pin holes and the position limiting groove 722. The support rod 71 is mounted around the eccentric wheel 72, with one end of the support rod 71 in contact with the eccentric wheel 72 and the other end locked to the connection portion 853 of the connection seat 85. The connection portion 853 positions the support rod 71 on the eccentric wheel 72. One end of the eccentric wheel 72 is connected to the support rod 71 and the other end is connected to the eccentric wheel connection sheet 75, and the eccentric wheel connection sheet 75 fixes and connects the eccentric oscillating wheel 73 and the eccentric wheel 72. One end of the eccentric oscillating wheel 73 is fixed to the eccentric wheel connection sheet 75 and an eccentric oscillating shaft 731 is installed at the other end. The oscillating arm 74 has an eccentric oscillating hole 742 at one end that corresponds to the eccentric oscillating shaft 731. The eccentric oscillating hole 742 is provided around the eccentric oscillating shaft 731, and an eccentric oscillating slope 732 is formed on one end of the eccentric oscillating wheel 73 that is away from the eccentric oscillating shaft 731. The oscillating arm 74 has an eccentric oscillating massage head 75 attached to its tip. In this embodiment, the massage rolling component 5 includes a drive gear and a rolling gear (hidden by the motor cover in Figure 1). The drive gear is a composite gear having a helical gear and a spur gear, with the helical gear meshing with the output shaft of the massage motor 3, the spur gear connection meshing with the rolling gear, and fixing the rolling gear to the long rotating shaft 6.

[0030] In this invention, when the core of the massage machine, which can adjust the massage interval distance, is in operation, the battery provides power to the circuit board, which controls the operation of the massage motor 3. The drive of the massage motor 3 causes the drive gear that meshes with it to rotate, which in turn causes the rolling gear and the long rotating shaft 6 to rotate, which in turn causes the eccentric wheel 72 and the eccentric oscillating wheel 73 to rotate, and the support rod 71 to rotate. Since the position of the support rod 71 is restricted by the second position restriction column 741, the free end of the support rod 71 moves up and down within a certain range. Since the eccentric oscillating wheel 73 has an eccentric oscillating slope 732, the oscillating arm 74 that is attached around the eccentric oscillating shaft 731 can oscillate left and right when the long rotating shaft 6 rotates due to the first position restriction column 711, and serves to clamp the neck. When combined with the support rod 71, it can achieve a massage effect of kneading and rubbing. The distance between the two massage parts 7 can be adjusted by rotating the adjustment motor 81 in both forward and reverse directions.

[0031] As shown in Figure 6, when the massage component 7 according to the present invention moves toward the conductive pin 861 located on one side of the center of the long rotating shaft 6 by interlocking with the adjustment bolt 83, the distance between the two eccentric oscillating massage heads 75 and the two support rods 71 ​​between the two massage components 7 becomes the minimum, with the minimum distance D1 ≥ 56 between the two eccentric oscillating massage heads 75 and the minimum distance D2 ≥ 57 between the two support rods 71.

[0032] As shown in Figure 7, when the massage component 7 according to the present invention moves outward to the conductive pin 861 installed on the outside by the interlocking action of the adjustment bolt 83, the distance between the two eccentric oscillating massage heads 75 and the two support rods 71 ​​between the two massage components 7 becomes the maximum, with the maximum distance D3 ≤ 133 mm between the two eccentric oscillating massage heads 75 and the maximum distance D4 ≤ 75 mm between the two support rods 71.

[0033] The above embodiments and drawings are not intended to limit the form or specifications of the products relating to the present invention, and any person skilled in the art should not consider any appropriate changes or modifications thereto to have exceeded the scope of protection of the present invention. [Explanation of Symbols]

[0034] 1 Housing 11 Movable groove 2 batteries 3 Massage motor 4 Circuit boards 5. Massage rolling parts 6 Long rotating shaft 7 Massage parts 71 Support rod 711 First Position Restriction Pillar 712 Insertion section 72 Eccentric wheel 721 Eccentric hole 722 Position-restricting long groove 73 Eccentric oscillating wheel 731 Eccentric oscillating axis 732 Eccentric oscillating slope 74 Swivel Arm 741 Second position restriction pillar 742 Eccentric oscillating hole 75 Eccentric Wheel Connection Sheet 8. Massage interval distance adjustment configuration 81 Adjustable motor 82 Adjustable Rolling Parts 821 Adjustable drive gear 822 Adjustable rolling shaft 823 Adjustable Rolling Gear 824 Bearing 825 Bearing seat 83 Adjustment bolt 831 Male screw 832 Second mounting ring 84 Adjustment seat 841 Female thread 842 Adjustment Gear 85 connection seat 851 First engagement ring 852 Second engagement ring 853 Connection part 854 First mounting ring 855 Engagement groove 856 Guide Rail 857 Seat socket 86 Position limiting mechanism 861 Conductive pins 862 Conductive Sheet

Claims

1. Includes an adjustment motor, adjustment rolling components, two adjustment bolts, two adjustment seats, two connecting seats, and a position limiting mechanism. The adjustment rolling component is connected to the adjustment motor and two adjustment seats. The two adjustment bolts, two adjustment seats, and two connecting seats are each symmetrically positioned on the long rotating shaft of the core of the massage machine. The adjustment seat is connected to the adjustment rolling component and has a female thread in the center. The adjustment bolt has a male thread that engages with the female thread of the adjustment seat, one end is connected to the adjustment seat, and the other end is fixed to the massage component via a connecting seat. The position limiting mechanism includes conductive pins and a conductive sheet, the conductive pins being connected to a circuit board, the conductive sheet operating in synchronously with an adjustment bolt, the distance between the two conductive pins being less than or equal to the length of the adjustment bolt's male thread, and the conductive sheet being positioned between the two conductive pins.

2. The aforementioned adjustable rolling component uses a gear group to achieve rolling motion and includes an adjustable drive gear, an adjustable rolling shaft, and an adjustable rolling gear. The adjustment drive gear meshes with the output shaft of the adjustment motor, The adjustable drive gear is fixed and installed at the central position of the adjustable rolling shaft. The adjustable rolling shaft has both ends connected to adjustable rolling gears. The massage interval distance adjustment configuration according to claim 1, characterized in that the adjustment seat has an adjustment gear on its outer circumference that meshes with an adjustment rolling gear.

3. The aforementioned adjustable rolling shaft has bearings provided between the adjustable drive gear and the two adjustable rolling gears. The bearing is installed in the bearing seat. The massage interval distance adjustment configuration according to claim 2, characterized in that the bearing seat is fixed to the housing.

4. The connecting seat includes a first engaging ring, a second engaging ring, and a connecting portion. The massage interval distance adjustment configuration according to claim 1, characterized in that the connecting portion has one end locked to a massage component, a first mounting ring provided at the other end, and a second mounting ring at the other end connected to a connecting seat on the adjustment bolt, the first engagement ring and the second engagement ring have engagement grooves corresponding to the first mounting ring and the second mounting ring, and when the first engagement ring and the second engagement ring are engaged, the massage component and the adjustment bolt are fixed by restricting the position of the first mounting ring and the second mounting ring to the engagement grooves.

5. The conductive sheet is attached to the second engagement ring of the connecting seat. A guide rail extends from one end of the adjustment bolt in the second engagement ring. The guide rail is provided with a sheet socket extending from one end of a conductive pin. The massage interval distance adjustment configuration according to claim 4, characterized in that the conductive sheet is attached to the sheet socket.

6. The housing includes a battery, a massage motor, a circuit board, massage rolling components, a long rotating shaft, massage components, and a massage interval distance adjustment configuration according to any one of claims 1 to 5. The battery and the massage motor are each connected to a circuit board. The massage rolling components are connected to the massage motor and the long rotating shaft, and are linked by a gear rolling group to rotate the long rotating shaft. The core of a shoulder and neck massage machine is characterized in that two massage components are symmetrically mounted on a long rotating shaft, the adjustment motor is attached to one side of the housing on the long rotating shaft, and the conductive pin is attached to the housing.

7. The massage component includes a support rod, an eccentric wheel, an eccentric oscillating wheel, and an oscillating arm. A first position limiting column is provided at the bottom end of the support rod, a second position limiting column is provided at the bottom end of the swinging arm, and a movable groove is provided in the housing for moving the first and second position limiting columns. The eccentric wheel is provided with an eccentric hole, and a position-restricting groove communicating with the eccentric hole is further provided. The long rotating shaft is provided with two pin holes at positions corresponding to both ends of the position-restricting groove, and the eccentric wheel and the long rotating shaft are fixed by inserting the position-restricting pins into the two pin holes and the position-restricting groove. The support rod is mounted around the eccentric wheel, with one end of the support rod in contact with the eccentric wheel and the other end locked to the connection part of the connecting seat, and the support rod is positioned on the eccentric wheel by the connection part. The eccentric wheel is connected at one end to a support rod and at the other end to an eccentric wheel connecting sheet, and the eccentric oscillating wheel and the eccentric wheel are fixedly connected by the eccentric wheel connecting sheet. The eccentric oscillating wheel has one end fixed to the eccentric wheel connecting sheet, and the other end has an eccentric oscillating shaft installed. The aforementioned swing arm has an eccentric swing hole at one end that corresponds to an eccentric swing axis, The eccentric oscillation hole is provided around the eccentric oscillation shaft, and an eccentric oscillation slope is formed at one end of the eccentric oscillation wheel that is away from the eccentric oscillation shaft. The shoulder and neck massage machine core according to claim 6, characterized in that the oscillating arm has an eccentric oscillating massage head attached to its tip.

8. The aforementioned massage rolling component includes a drive gear and a rolling gear, The core of the shoulder and neck massage machine according to claim 6, characterized in that the drive gear is a composite gear having a helical gear and a spur gear, the helical gear is connected so as to mesh with the output shaft of the massage motor and the spur gear is connected so as to mesh with the rolling gear and the rolling gear is fixed to the long rotating shaft.

9. The minimum distance D1 between the two eccentrically oscillating massage heads in the two massage components is ≥ 56 mm. The minimum distance D2 between the two support rods is ≥ 57 mm. The maximum distance D3 between the two eccentrically oscillating massage heads is ≤ 133 mm. The shoulder and neck massage machine core according to claim 7, characterized in that the maximum distance D4 between the two support rods is ≤ 75 mm.

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