A massager swing drive device

Abstract

This utility model relates to the field of massager technology, and in particular to a rocking drive device for a massager, comprising: a support member, a rocker arm, a transmission member, and a motor; the support member is connected to a support portion A, which connects to and supports the rocker arm to form a support point, and the rocker arm swings in any direction around the support point; the rocker arm swings in any direction to form a circular trajectory; the transmission member has a first transmission portion and a second transmission portion; the first transmission portion is connected to the main shaft of the motor; the second transmission portion and the third transmission portion abut against each other along the rotational direction and the diametrical direction of the main shaft of the motor; the second transmission portion rotates relative to the rocker arm. This application transfers the friction of relative rotation between the original support body and the flexible layer to the positions of the second and third transmission portions, thereby effectively avoiding motor overload and increasing the stability and lifespan of the device.

Description

Technical Field

[0001] This utility model relates to the field of massager equipment technology, and in particular to a massager swing drive device. Background Technology

[0002] With the increasing sophistication and functionality of massage devices such as fascia guns and massagers, an innovative type of massager has emerged on the market. Its massage head can perform continuous rotating and oscillating movements, providing users with a more diverse and intensive massage effect. However, the rotating and oscillating transmission mechanism currently used in such massagers is relatively rudimentary and has some technical limitations.

[0003] Specifically, such as Figure 1 As shown, the axis of the massage head support and the motor spindle of this massager are not on the same straight line; there is a certain angle between them. This causes the motor spindle to have a standard cylindrical trajectory during rotation, while the massage head's rotation trajectory is conical. Under this transmission structure, the angle of the massage head support changes synchronously with the motor's rotation, which places high demands on the lubrication performance between the massage head support and the flexible layer.

[0004] During continuous operation of the massager, the massage head support and the inner wall of the flexible layer are constantly subjected to compression and friction. Over time, the lubricant originally applied between these two surfaces will gradually wear off and shift, with a large amount of lubricant migrating to other non-critical parts. This phenomenon will directly lead to a sharp increase in the friction between the massage head support and the inner wall of the flexible layer, potentially causing the transmission structure to seize up. It will also overload the motor, affecting the normal operation and lifespan of the massager. Utility Model Content

[0005] To solve the above-mentioned problems in the prior art, this utility model provides a massager rocking drive device, including: a support member, a rocker arm, a transmission member, and a motor;

[0006] The support member is connected to a support part A, which connects to and supports the rocker arm to form a support point, so that the rocker arm can swing in any direction with the support point as the fulcrum.

[0007] The rocker arm swings in any direction to form a circular trajectory;

[0008] The center of the support part A, where it connects to the rocker arm, is located in the extension line of the motor's axis.

[0009] The transmission component has a first transmission part and a second transmission part;

[0010] The first transmission unit is connected to the main shaft of the motor so that the transmission component rotates with the main shaft of the motor;

[0011] The second transmission unit abuts against the rocker arm in the rotation direction of the motor spindle, thereby pushing the rocker arm to move in the rotation direction of the motor.

[0012] Furthermore, the second transmission unit rotates relative to the rocker arm;

[0013] Furthermore, the contact position between the second transmission part and the rocker arm is such that the rocker arm maintains a fixed swing angle.

[0014] Furthermore, a support portion B is formed by a radial protrusion at the middle section of the rocker arm, and the wall surface of the support portion B is spherical.

[0015] The support A has a hole structure, and the hole wall of the hole structure is spherical.

[0016] The support part A and the support part B are concentrically fitted together;

[0017] The center of the ball in the support part A is located in the extension line of the motor axis.

[0018] Furthermore, the support part A is made of a flexible material, and the support part A is connected to the circumferential wall of the rocker arm;

[0019] When the rocker arm is subjected to force, the support part A deforms, providing space for the rocker arm to avoid movement.

[0020] Furthermore, the rocker arm is divided into three regions along its length: a first rigid region, an elastic region, and a second rigid region. In the elastic region, when not under stress, the three regions are in a straight line state.

[0021] When the first rigid region and the second rigid region are subjected to a force exceeding the preset resistance, the elastic region deforms.

[0022] Furthermore, a ball bearing structure is provided between the rocker arm and the second transmission part, and the ball bearing structure abuts against the rocker arm instead of the second transmission part.

[0023] Furthermore, the end of the rocker arm is configured as a third transmission part, which is configured as a hole structure opened from the end of the rocker arm;

[0024] The transmission component is also provided with a first loading plate;

[0025] The second transmission part is configured as a shaft structure, protruding from one side of the first loading plate;

[0026] The end of the second transmission part is inserted into the third transmission part, and the diameter of the second transmission part is smaller than the diameter of the third transmission part.

[0027] Furthermore, the support member is configured as a cylindrical structure, and the inner wall of the support member is provided with a first guide hole, the axis of the first guide hole being parallel to the axis of the motor spindle;

[0028] The first loading plate is circular, and the axis of the first transmission part is coaxial with the first loading plate;

[0029] Furthermore, the first loading plate is disposed within the first guide hole.

[0030] Furthermore, the support portion B is detachably connected to the rocker arm;

[0031] The support part B is a ring structure, and the outer ring sidewall of the support part B is spherical.

[0032] Furthermore, the rear end face of the support member is configured as a second loading plate, and the second loading plate is detachably and fixedly connected to the main body of the support member.

[0033] Furthermore, the front end of the rocker arm is configured as a support head to support the flexible layer, and the support head is provided with a vibration module and / or a heating module.

[0034] The beneficial effects of this utility model are reflected in the fact that this application transfers the friction of relative rotation between the original support body and the flexible layer to the second transmission part and the rocker arm. Both the rocker arm and the second transmission part can be made of metal or plastic parts and the contact area is much smaller than the contact area between the support body and the flexible layer. Therefore, the friction is very small, thereby effectively avoiding motor overload and increasing the stability and life of the equipment. Attached Figure Description

[0035] Figure 1 This is a schematic diagram of the structure of a massager swing drive device in the prior art;

[0036] Figure 2 A three-dimensional structural schematic diagram of the massager rocking drive device provided by this utility model;

[0037] Figure 3 A three-dimensional structural diagram of a massager swing drive device in the form of a spherical support section A;

[0038] Figure 4 This is a cross-sectional schematic diagram of the massager rocking drive device of the support part A in the first embodiment;

[0039] Figure 5 A three-dimensional structural diagram of the massager swing drive device of the second type of support part A;

[0040] Figure 6 A cross-sectional schematic diagram of the rocking drive device for a massager of the third type, support part A.

[0041] Figure 7 This is a schematic diagram of a transmission component and a third guide section.

[0042] Figure 8 A schematic diagram of another transmission component and a third guide section;

[0043] Figure 9 A cross-sectional structural diagram of the rocking drive device for a massager, in the form of a spherical support section A;

[0044] Figure 10 This is a schematic diagram of the cross-sectional structure of the rocker arm.

[0045] Reference numerals: 1. Support component; 11. Support A; 12. Second loading plate; 13. First guide hole; 2. Rocker arm; 21. Third transmission part; 22. Support B; 23. First rigid region; 24. Elastic region; 25. Second rigid region; 26. Support body; 3. Transmission component; 31. First transmission part; 32. Second transmission part; 33. First loading plate; 34. Ball bearing structure; 4. Motor; 5. Vibration module. Detailed Implementation

[0046] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0047] Example 1

[0048] Reference Figure 1 - Figure 10 .

[0049] A massager rocking drive device includes: a support member 1, a rocker arm 2, a transmission member 3, and a motor 4;

[0050] The support member 1 is connected to a support part A11, which connects to and supports the rocker arm 2 to form a support point 111, so that the rocker arm 2 swings in any direction with the support point 111 as the fulcrum.

[0051] The rocker arm 2 swings in any direction to form a circular trajectory;

[0052] The center of the support part A11 connected to the rocker arm 2 is located in the extension line of the axis of the motor 4;

[0053] The transmission component 3 has a first transmission part 31 and a second transmission part 32;

[0054] The first transmission part 31 is connected to the main shaft of the motor 4 so that the transmission component 3 rotates with the main shaft of the motor 4;

[0055] The second transmission part 32 abuts against the rocker arm 2 in both the rotational direction and the diameter direction of the motor 4 main shaft, pushing the rocker arm 2 to move in the rotational direction of the motor 4; and the second transmission part 32 rotates relative to the rocker arm 2; and the abutting position of the second transmission part 32 against the rocker arm 2 is such that the rocker arm 2 maintains a fixed swing angle.

[0056] Specifically, motor 4 is a geared motor 1, including a drive unit and a gearbox, which enables motor 4 to drive the rocker arm to move at a suitable speed.

[0057] Reference Figure 1Currently, massage devices on the market feature a massage head that performs a conical motion. This conical motion refers to the massage head's axis forming a cone. The transmission mechanism of these devices is quite simple, consisting only of a motor 4 main shaft connected to a support body 26 (hereinafter referred to as the massage head support body 26). The axis of the support body 26 forms an angle with the axis of the motor 4. The extension of the motor 4 main shaft and the axis of the support body 26 form a triangular vector plane. The motor 4 main shaft drives this vector plane to rotate, forming a conical trajectory. While the transmission structure of this existing technology appears flawless on its own, the support body 26 needs to be wrapped with a layer of silicone as a flexible layer to increase massage comfort and make the massage head waterproof and easy to clean. At this point, in the complete massage device with the added flexible layer, the existing transmission mechanism would interfere with the flexible layer. In the existing transmission mechanism, the support 26 not only performs conical motion but also rotates around its own axis. The rotating main shaft of the motor 4 and the object fixedly connected to it inevitably rotate as well. However, the flexible layer, as a single component, completely encloses the massage device and needs to be held; therefore, the flexible layer cannot rotate. Given this, a rotational connection must be formed between the flexible layer and the support 26, thus requiring minimizing friction between them. Currently, reducing friction mainly relies on adding lubricating oil to the contact surface between the flexible layer and the support 26. However, silicone is a flexible material, and during the continuous movement of the support 26, the inner wall of the flexible layer is easily deformed. The lubricating oil, under pressure, will move to other non-critical components, causing a continuous reduction in the lubricating oil at the contact surface between the flexible layer and the support 26. Furthermore, the lubricating oil itself will gradually evaporate and be consumed. When there is insufficient lubricating oil at the contact surface between the flexible layer and the support 26, the resistance to rotation of the support 26 will be greatly increased. The support 26 will drive the flexible layer to rotate through friction, causing the flexible layer to deform and be squeezed, which will lead to overload of the motor 4 or breakage at the connection between the support 26 and the main shaft of the motor 4.

[0058] In this regard, this application provides a novel transmission structure that enables the support body 26 to perform conical motion.

[0059] The system includes a support member 1 and a rocker arm 2. The support member 1 has a support portion A11 at its front end. The front end of the rocker arm 2 can directly serve as the support body 26 for the massage head. The middle section of the rocker arm 2 has a connecting support portion A. The rear end of the support member 1 has a transmission member 3. The transmission member 3 includes at least a first transmission portion 31 and a second transmission portion 32. The first transmission portion 31 is connected to the main shaft of the motor 4. The second transmission portion 32 is eccentrically arranged with the first transmission portion 31, and the second transmission portion 32 abuts against the rocker arm 2 in the direction of rotation.

[0060] The support A11 is connected to the rocker arm 2, but does not limit the swing freedom of the rocker arm 2. The rocker arm 2 can swing in any direction, which is 360 degrees. Therefore, the swing trajectory forms a circular trajectory, and the center of the circular trajectory is located in the extension line of the axis of the motor 4. At this time, it is only necessary to swing the rocker arm 2 to a specific angle and then rotate the rocker arm 2 around the axis of the motor 4 to achieve conical motion. However, it should be noted that the rocker arm 2 cannot rotate around its own axis.

[0061] The contact method between the transmission component 3 and the rocker arm 2 can be specifically set as follows:

[0062] The end of the rocker arm 2 serves as the third transmission part 21. The transmission component 3 can be set as a disc (any shape is acceptable, a circular structure is simple). Two holes are opened in the disc. One hole is located on the axis of the disc and serves as the first transmission part 31. The other hole is eccentric and serves as the second transmission part 32. The end of the rocker arm 2, that is, the third transmission part 21, can be directly inserted into the second transmission part 32 in the form of a rod.

[0063] Alternatively, the transmission component 3 can be configured as a Z-shaped rod, with one of the two parallel arms connected to the main shaft of the motor 4 as the first transmission part 31, and the other as the second transmission part 32; the rocker arm 2 has a hole at its end as the third transmission part 21, which is fitted onto the second transmission part 32. Similar hole-shaft structures can all serve as the form of the first transmission part 31, the second transmission part 32, and the third transmission part 21.

[0064] Furthermore, the transmission component 3 is configured as a V-shaped structure, the third transmission part 21 is configured as a rod, the third transmission part 21 is inserted into the opening position of the V-shaped structure, the main shaft of the motor 4 is connected to the intersection position of the V-shaped structure to drive the entire V-shaped structure to rotate, and the wall of the opening of the V-shaped structure pushes the third transmission part 21.

[0065] In the above configuration, the second transmission part 32 and the third transmission part 21 are not connected, and they do not rotate synchronously (here, "rotation" refers to rotation around its own axis). The second transmission part 32 will rotate with the first transmission part 31, but the friction between the second transmission part 32 and the third transmission part 21 is very small. Therefore, the third transmission part 21 (and the entire rocker arm 2) will not rotate, and the flexible layer can swing synchronously with the support 26 without relative rotation. The conical trajectory formed by the movement of the rocker arm 2 is not formed by rotation, but by the second transmission part 32 continuously pushing the rocker arm 2 at different angles to swing in an arc.

[0066] This embodiment provides several specific structures for the support portion A11.

[0067] 1. The support part A11 may be equipped with a cover plate made of flexible material (such as rubber, silicone, etc.). The support part A11 is connected to the front end of the support member 1. The rocker arm 2 passes through the support part A11. At this time, the rocker arm 2 and the edge of the hole it passes through when passing through the support part A11 are the support points. When the rocker arm 2 presses against the support point, the support part A11 deforms and the rocker arm 2 swings to avoid it. The rocker arm 2 can be directly bonded to the support part A11, or it can protrude in the radial direction to form two axial limiting parts. The support part A11 is located between the two axial limiting parts, and the axial limiting parts prevent the rocker arm 2 and the support part A11 from sliding.

[0068] 2. Furthermore, the support A11 can be further simplified into several flexible strips, such as four rubber strips. The four rubber strips are arranged in a cross shape. One end of the rubber strip is connected to the support body 1 and the other end is connected to the side wall of the rocker arm 2. When the rocker arm 2 swings toward one of the rubber strips, the position where the rubber strip on the opposite side of the rocker arm is connected to the rocker arm serves as the support point for the rocker arm to swing. The front end and the end of the rocker arm 2 swing in opposite directions.

[0069] 3. Alternatively, the support A11 can be made into a thin plate that is not easily deformed. A hole is made in the thin plate, and the axis of the hole is coaxial with the axis of the motor 4. The hole is made in the thin plate with a very short depth. Normally, if the hole has a certain depth, both ends of the hole will support the rod, so that the two points determine a straight line, which would prevent the rod from swinging. However, the two ends of the hole with a very short depth are very close, so the original two support points are combined into one. The straight line can rotate freely 360 degrees through a single point. Since the short hole cannot restrict the swing freedom of the rod, the rocker arm 2 can still swing freely in the hole of the support A11. At the same time, the rocker arm 2 should be limited in the circumferential direction to prevent the rocker arm 2 from sliding.

[0070] This application transfers the friction caused by the relative rotation between the original support 26 and the flexible layer to the positions of the second transmission part 32 and the third transmission part 21. Both the third transmission part 21 and the second transmission part 32 can be made of metal or plastic parts and the contact area is much smaller than the contact area between the support 26 and the flexible layer. Therefore, the friction is very small, thereby effectively avoiding overload of the motor 4 and increasing the stability and life of the equipment.

[0071] Furthermore, a ball bearing structure 34 can be provided between the second transmission part 32 and the third transmission part 21 to convert the sliding friction between them into rolling friction, further reducing resistance. The ball bearing structure 34 can be a bearing, for example, the second transmission part 32 is a shaft and the third transmission part 21 is a hole. The bearing can be sleeved around the second transmission part 32 or embedded inside the third transmission part 21. Alternatively, the ball bearing structure 34 can be an independent sphere. This structure is simpler but no longer a standard part. The spherical ball bearing structure 34 can only be embedded in the second transmission part 32 or the third transmission part 21, which is a shaft, and then the ball abuts against the inner wall of the second transmission part 32 or the third transmission part 21, which is a hole.

[0072] Meanwhile, most massage heads have vibration and heating functions. Since the support 26 of this application no longer has relative movement with the flexible layer, the flexible layer can be completely bonded to the support 26, so that the vibration of the vibration module 5 and the temperature of the heating module are transmitted to the outer surface of the flexible layer, thereby increasing the massage effect of the massage device.

[0073] Example 2

[0074] Reference Figure 2 and 7 .

[0075] The rocker arm 2 has a radially protruding support portion B22 at its middle section, and the wall surface of the support portion B22 is spherical.

[0076] The support portion A11 has a hole structure, and the hole wall of the hole structure is spherical.

[0077] The support portion A11 and the support portion B22 are concentrically fitted together;

[0078] The center of the ball in the support part A is located in the extension line of the motor axis.

[0079] Example 1 provides a support structure A11 for a flexible panel. This example provides a fourth, more preferred structure for the support A11.

[0080] The support part A11 of the flexible plate is constantly being squeezed by the rocker arm 2 during its movement. As the fulcrum for the rocker arm 2 to swing, the support part A11 has a certain strength. Therefore, the rocker arm 2 needs a large force to squeeze the support part A11 and deform it. This force undoubtedly needs to be provided by the motor 4, which requires the use of a higher power motor 4. More importantly, this will greatly shorten the device's battery life.

[0081] Furthermore, the flexible material is constantly being squeezed, which can easily cause cracks at the bonding points between the support component 1, the rocker arm 2, and the support part, leading to the failure of the support part A11. Therefore, it is necessary to use a very reliable adhesive to ensure the service life of the device.

[0082] The support part A11 is designed as a thin plate structure that is not easily deformed, and its movement is unstable, which will generate obvious noise.

[0083] This embodiment provides a more stable and reliable structure for the support portion A11.

[0084] Support A11 has a spherical hole, and support B22 protrudes from rocker arm 2 along the radial direction of rocker arm 2. The wall of support B22 is spherical. Support B22 is disposed in support A11, and the two form a spherical fit. The center of the sphere of support A11 is used as the center of rotation.

[0085] Compared to a hole-shaft fit, a spherical fit requires the two to be coaxial, with the direction of the hole determining the direction of the shaft. In a spherical fit, the rocker arm 2 can rotate around the center of the sphere, thus allowing the rocker arm 2 to rotate around the axis of the motor 4 without needing to be parallel to the axis of the motor 4.

[0086] Furthermore, in this embodiment, the support parts A11 and B22 can be made of metal or plastic. The support parts A11 and B22 will not be severely squeezed. During movement, only the friction between the two increases. The friction between the two smooth surfaces is very small and will not significantly increase the load on the motor 4.

[0087] Example 3

[0088] Reference Figure 10 .

[0089] The rocker arm 2 is divided into three regions along its length: a first rigid region 23, an elastic region 24, and a second rigid region 25. When the elastic region 24 is not under stress, the three regions are in a straight line state.

[0090] When the first rigid region 23 and the second rigid region 25 are subjected to a force exceeding the preset resistance, the elastic region 24 deforms.

[0091] The structure of this application prevents excessive friction between the support 26 and the flexible layer during massage operation, thus avoiding overload of the motor 4. This is a major reason for the short lifespan of massage devices with this type of motion mode. Similar causes of motor 4 overload also exist in this type of massage. Specifically, the end of the massage head does not rotate around its own axis, but rather around the axis of the motor 4. Therefore, the rotation trajectory of the massage head is much larger than its own diameter. For the rotating shaft driven by the motor 4, the larger the diameter, the greater the resistance when the main shaft experiences friction, because the resistance arm is equal to the radius of the rotating shaft when the outer contour is subjected to force. Consequently, for the massage head rotating around its own axis, the length of the resistance arm is equal to the radius of the massage head, while for the massage head with conical motion, the length of the resistance arm is equal to the radius of the motion trajectory. The radius of the movement trajectory of a typical massage device is 2-4 times the diameter of the massage head, allowing the user to fully experience the massage effect. This results in the motor 4 being subjected to a 2-4 times increase in load. If the user presses the massage head firmly against their body, the motor 4 will easily reach an overload state. The degree of overload will vary depending on the user's usage, but long-term and frequent overload of the motor 4 will inevitably affect its lifespan, thus shortening the lifespan of the massage device.

[0092] In this embodiment, the rocker arm 2 serves as the frame for the swinging of the massage head. An elastic region 24 is provided in the middle section. The elastic region 24 should not be too soft. It should at least be able to provide support when the massage head swings and should not undergo significant deformation. It should effectively transmit the force received by the third transmission part 21 to the support body 26. The elastic region 24 can be made of a relatively hard rubber material, a spring, or an elastic plastic material, etc.

[0093] When the device is in normal operation, the elastic region 24 of the rocker arm 2 will not deform. However, when the massage head is subjected to greater resistance, such as when the massage head is pressed against the palm, the force of the massage head against the palm acts as a resistance to the movement of the mechanism. This resistance is sufficient to deform the elastic region 24. The preset resistance is also sufficient to deform the elastic region 24. Then, the first rigid region 23, together with the support body 26 and the flexible layer, continues to press against the palm and remain stationary. The second transmission part 32 continues to push the third transmission part 21 so that the second rigid region 25 continues to move. That is, the deformation of the elastic region 24 allows the second rigid region 25 (the third transmission part 21) to move independently away from the first rigid region 23, making way for the movement of the second transmission part 32, ensuring that the load on the motor 4 does not increase indefinitely, avoiding overload of the motor 4, and thus increasing the service life of the massage device.

[0094] Example 4

[0095] Reference Figure 9 .

[0096] The support member 1 is provided with a first guide hole 13, and the axis of the first guide hole 13 is parallel to the axis of the motor 4 main shaft;

[0097] The first loading plate 33 is circular, and the axis of the first transmission part 31 is coaxial with the first loading plate 33;

[0098] Furthermore, the first loading plate 33 is disposed within the first guide hole 13.

[0099] The support member 1 is provided with a first guide hole 13 (the second loading plate 12 is part of the support member 1, and the first guide hole 13 is provided in the second loading plate 12, which is also the support member 1). The first guide hole 13 is sleeved on the first loading plate 33. The first loading plate 33 is circular. The first transmission part 31 is provided on the first loading plate 33. It can be understood that the diameter of the first loading plate 33 should be larger than the diameter of the movement trajectory of the second transmission part 32. The first loading plate 33 is integrally set inside the first guide hole 13. The force-bearing point of the first transmission part 31 and the connection position of the second transmission part 32 are respectively located at both ends of the first guide hole 13. Before the connection position is deformed, the fit relationship between the first loading plate 33 and the first guide hole 13 must be broken. The distance from the force-bearing point of the first transmission part 31 to the first guide hole 13 is significantly smaller than the distance from the force-bearing point of the first transmission part 31 to the connection position of the second transmission part 32 (reducing the length of the second transmission part 32). Therefore, the connection structure at the first guide hole 13 is more difficult to break than the connection relationship between the motor 4 spindle and the second transmission part 32. Originally, the resistance arm that resisted deformation was the length of the connection position of the second transmission part 32 (in layman's terms, when inserted into the second transmission part 32, the apex of the motor 4 spindle abuts against the hole wall as a fulcrum, and the edge of the hole abuts against the side wall of the motor 4 spindle as the point of action of the resistance arm). At this time, the position of the fulcrum changes and becomes closer to the point of action of the power arm and farther away from the point of action of the resistance arm, so that the transmission part 3 can rotate better around the motor 4 spindle.

[0100] Example 5

[0101] Reference Figure 2 and 9 .

[0102] The support part B22 is detachably connected to the rocker arm 2;

[0103] The support part B22 has a ring structure, with the outer ring sidewall being spherical and the inner ring wall being cylindrical.

[0104] The support part B22 and the rocker arm 2 are set separately. Since the support part A11 and the support part B22 are spherical, the centers of the two spheres need to coincide. For a sphere, the diameter of the cross section passing through the center of the sphere is obviously the largest. However, the center of the sphere of the support part A11 is located in the middle of the hole structure depth. That is to say, the diameters at both ends of the hole are smaller than the diameter at the middle depth of the hole structure. Therefore, it is difficult for the support part B22 to pass its own spherical cross section through the opening of the support part A11.

[0105] In this embodiment, the support part B22 is set as an independent ring component. The center of the ring structure loses the support of the rocker arm 2, making it more prone to deformation. Furthermore, the support part B22 can form a cross with the support part A11. When the ring structure is easily compressed into an ellipse, the minor axis of the ellipse will be shorter than the diameter of the ring structure, making it easier to insert into the support part A11. After the support part B22 enters the support part A11, it can rotate freely around the center. At this point, the rocker arm 2 can be inserted into the inner ring surface of the support part B22. A circle is the most preferred inner ring surface because a circle distributes radial pressure stress more effectively. In contrast, a square, for example, concentrates stress at the right angle when subjected to pressure. Since a square has the longest diagonal, the outer wall thickness at the corresponding diagonal is the thinnest, making the thinnest wall prone to deformation and breakage.

[0106] Furthermore, the support part A11 can also be set as an independent part. During product assembly, the support part A11 and the support part B22 are spliced ​​together first, and then the rocker arm 2 and the support 1 are connected.

[0107] Furthermore, the rear end face of the support member 1 is configured as a second loading plate 12, and the second loading plate 12 is detachably and fixedly connected to the main body of the support member 1.

[0108] When assembling the overall conical rotating mechanism, first assemble the first part, fitting support A11 and support B22 together. Then, insert rocker arm 2 into support B22, and then fit support 1 onto support A11. Simultaneously assemble the second part, connecting transmission component 3 to the second loading plate 12, and then connecting the first transmission component 31 to the motor 4 spindle. Finally, connect the first part to the second part.

[0109] In the description of the embodiments of this utility model, it should be understood that the terms "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "center," "top," "bottom," "top," "bottom," "inner," "outer," "inner side," and "outer side," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model and 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, and therefore should not be construed as a limitation of this utility model. "Inner side" refers to the interior or enclosed area or space. "Outer perimeter" refers to the area surrounding a specific component or specific area.

[0110] In the description of embodiments of this utility model, the terms "first," "second," "third," and "fourth" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first," "second," "third," or "fourth" may explicitly or implicitly include one or more of that feature. In the description of this utility model, unless otherwise stated, "a plurality of" means two or more.

[0111] In the description of the embodiments of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "assembly" 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 utility model based on the specific circumstances.

[0112] In the description of the embodiments of this utility model, specific features, structures, materials or characteristics may be combined in any suitable manner in one or more embodiments or examples.

[0113] In the description of the embodiments of this utility model, it should be understood that "-" and "" represent a range between two values, and this range includes the endpoints. For example, "AB" represents a range greater than or equal to A and less than or equal to B. "A~B" represents a range greater than or equal to A and less than or equal to B.

[0114] In the description of the embodiments of this utility model, the term "and / or" is merely a description of the relationship between related objects, indicating that three relationships can exist. For example, A and / or B can represent: A existing alone, A and B existing simultaneously, and B existing alone. Additionally, the character "" generally indicates that the preceding and following related objects have an "or" relationship.

[0115] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A rocking drive device for a massager, characterized in that, include: Support components, rocker arm, transmission components, motor; The support member is connected to a support part A, which connects to and supports the rocker arm to form a support point, so that the rocker arm can swing in any direction with the support point as the fulcrum. The rocker arm swings in any direction to form a circular trajectory; The center of the support part A, where it connects to the rocker arm, is located in the extension line of the motor's axis. The transmission component has a first transmission part and a second transmission part; The first transmission unit is connected to the main shaft of the motor so that the transmission component rotates with the main shaft of the motor; The second transmission unit abuts against the rocker arm in the rotation direction of the motor spindle, thereby pushing the rocker arm to move in the rotation direction of the motor. Furthermore, the second transmission unit rotates relative to the rocker arm; Furthermore, the contact position between the second transmission part and the rocker arm is such that the rocker arm maintains a fixed swing angle.

2. The massager rocking drive device according to claim 1, characterized in that, The rocker arm has a radially protruding support portion B at its middle section, and the wall surface of the support portion B is spherical. The support A has a hole structure, and the hole wall of the hole structure is spherical. The support part A and the support part B are concentrically fitted together; The center of the ball in the support part A is located in the extension line of the motor axis.

3. The massager rocking drive device according to claim 1, characterized in that, The support part A is made of flexible material, and the support part A is connected to the circumferential wall of the rocker arm; When the rocker arm is subjected to force, the support part A deforms, providing space for the rocker arm to avoid movement.

4. A massager wobble drive device according to claim 2 or 3, characterized in that The rocker arm is divided into three regions along its length: a first rigid region, an elastic region, and a second rigid region. When the elastic region is not under stress, the three regions are in a straight line state. When the first rigid region and the second rigid region are subjected to a force exceeding the preset resistance, the elastic region deforms.

5. The massager rocking drive device according to claim 4, characterized in that, A ball bearing structure is provided between the rocker arm and the second transmission part, and the ball bearing structure abuts against the rocker arm instead of the second transmission part.

6. The massager rocking drive device according to claim 5, characterized in that, The end of the rocker arm is configured as a third transmission part, and the third transmission part is configured as a hole structure opened from the end of the rocker arm; The transmission component is also provided with a first loading plate; The second transmission part is configured as a shaft structure, protruding from one side of the first loading plate; The end of the second transmission part is inserted into the third transmission part, and the diameter of the second transmission part is smaller than the diameter of the third transmission part.

7. The massager rocking drive device according to claim 6, characterized in that, The support member is configured as a cylindrical structure, and the inner wall of the support member is provided with a first guide hole, the axis of the first guide hole being parallel to the axis of the motor main shaft; The first loading plate is circular, and the axis of the first transmission part is coaxial with the first loading plate; Furthermore, the first loading plate is disposed within the first guide hole.

8. The massager rocking drive device according to claim 2, characterized in that, The support part B is detachably connected to the rocker arm; The support part B is a ring structure, and the outer ring sidewall of the support part B is spherical.

9. The massager rocking drive device according to claim 7 or 8, characterized in that, The rear end face of the support member is configured as a second loading plate, and the second loading plate is detachably and fixedly connected to the main body of the support member.

10. The massager rocking drive device according to claim 9, characterized in that, The front end of the rocker arm is configured as a support head to support the flexible layer, and the support head is equipped with a vibration module and / or a heating module.

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