CN115770176B - Synchronous mechanism and massage device - Google Patents

Abstract

The invention relates to the technical field of massage equipment, and discloses a synchronous mechanism and a massage device. The synchronous mechanism comprises a shell, a synchronous component and a driving component, wherein the synchronous component comprises a rotatable synchronous piece, a plurality of sliding pieces and a swinging piece, the synchronous piece is arranged in the shell, the sliding piece is arranged in the shell in a sliding mode, one end of the swinging piece is rotationally arranged in the shell, the other end of the swinging piece extends out of the shell, the swinging piece is connected with the sliding piece in a transmission mode, the sliding piece is connected with the synchronous piece in a sliding mode, the synchronous piece is rotated to drive the sliding pieces to slide simultaneously, and then the swinging pieces are driven to swing synchronously, and the driving component is used for driving the synchronous piece to rotate positively and reversely periodically. The invention can cover a larger massage area and a wider massage angle, can strengthen the action force which can be transmitted, enhances the action force of scalp grabbing and kneading massage, has smaller noise generated in the massage process and improves the use experience of users.

Description

Synchronous mechanism and massage device

Technical Field

The present invention relates to the technical field of massage equipment, and in particular to a synchronization mechanism and a massage device.

Background Art

As people's living standards continue to improve, people's requirements for health are getting higher and higher. People will experience brain fatigue when using computers for a long time. In order to relieve people's brain fatigue, head massagers are currently available on the market.

Most existing head massagers use multiple cylindrical gears meshing in the same plane to drive multiple connecting rods to shake at a support point, so that the massage part at the end of the connecting rod makes a circular motion, and massages the human head through the massage part. However, due to the disadvantages of gear transmission, the distance between the gear shafts of the multiple cylindrical gears is small, resulting in a small massage area, limited massage angle, and small massage force of the head massager, resulting in insufficient strength of the scalp grabbing action. The noise of the meshing transmission of multiple cylindrical gears during the massage process is also relatively loud, affecting the user experience.

Summary of the invention

Based on the above problems, the purpose of the present invention is to provide a synchronization mechanism and a massage device that can cover a larger massage area and a wider massage angle, enhance the strength of the scalp grabbing and kneading massage action, reduce the noise generated during the massage process, and improve the user experience.

In order to achieve the above objectives, the following technical solutions are provided:

In a first aspect, the present invention provides a synchronization mechanism, comprising:

case;

A synchronous assembly, comprising a rotatable synchronous member and a plurality of sliding members and a swinging member, wherein the synchronous member is arranged in the housing, the sliding member is slidably arranged in the housing, one end of the swinging member is rotatably arranged in the housing, and the other end extends out of the housing, the swinging member is transmission-connected with the sliding member, the sliding member is slidably connected with the synchronous member, and the rotation of the synchronous member can drive the plurality of sliding members to slide at the same time, thereby driving the plurality of swinging members to swing synchronously;

The driving component is used to drive the synchronizer to rotate forward and reverse periodically.

As an optional solution of the synchronization mechanism provided by the present invention, one of the synchronization member and the sliding member is provided with a driving groove, and the other is provided with a driving portion that slidably cooperates with the driving groove.

As an optional solution of the synchronization mechanism provided by the present invention, the driving groove is curved, and the driving groove has a proximal end and a distal end, and the proximal end is closer to the rotation axis of the synchronizer relative to the distal end.

As an optional solution of the synchronization mechanism provided by the present invention, the sliding member is provided with a rack portion, and the swinging member is provided with a gear portion meshing with the rack portion.

As an optional solution of the synchronization mechanism provided by the present invention, a buffer elastic member is provided between the synchronization member and the housing.

As an optional solution of the synchronization mechanism provided by the present invention, the driving assembly includes a first incomplete bevel gear, a first bevel gear, a second bevel gear and a connecting shaft, the connecting shaft is rotatably arranged in the housing, the first bevel gear and the second bevel gear are spaced apart on the connecting shaft, the first bevel gear is transmission-connected to the synchronizer, and when the first incomplete bevel gear rotates, the first incomplete bevel gear can intermittently mesh with the first bevel gear or the second bevel gear to make the synchronizer periodically rotate forward and reverse.

As an optional solution of the synchronization mechanism provided by the present invention, the driving assembly also includes a cylindrical gear arranged on the connecting shaft, the cylindrical gear rotates synchronously with the first bevel gear, and the synchronizer is provided with an engaging portion that meshes with the cylindrical gear for transmission.

As an optional solution of the synchronization mechanism provided by the present invention, the drive assembly includes a drive shaft, a second incomplete bevel gear, a third incomplete bevel gear and a third bevel gear, the second incomplete bevel gear and the third incomplete bevel gear are arranged on the drive shaft at intervals, the third bevel gear is rotatably arranged in the housing, and the third bevel gear is transmission-connected with the synchronizer. When the drive shaft rotates, the third bevel gear can intermittently engage with the second incomplete bevel gear or the third incomplete bevel gear to make the synchronizer periodically rotate forward and reverse.

As an optional solution of the synchronization mechanism provided by the present invention, the shell includes a first shell, a mounting plate and a second shell, the first shell and the second shell are connected, the mounting plate is arranged between the first shell and the second shell, the synchronization member is rotatably arranged on the second shell, the sliding member is slidably arranged on the mounting plate, and the swinging member is rotatably arranged on the mounting plate.

As an optional solution of the synchronization mechanism provided by the present invention, a hinged portion is provided on the second shell, and the swinging member includes a rotating portion and a mounting portion, the rotating portion is rotatably connected to the hinged portion via a rotating shaft, and the mounting portion is used to connect with the massage member.

As an optional solution of the synchronization mechanism provided by the present invention, a sliding groove is provided on the mounting plate, and the sliding member includes a sliding portion that slidably cooperates with the sliding groove.

In a second aspect, the present invention further provides a massage device, comprising the above-mentioned synchronization mechanism.

The beneficial effects of the present invention are:

The synchronous mechanism and massage device provided by the present invention can simultaneously drive a plurality of sliding members to slide in a shell body, thereby driving a plurality of swinging members to swing synchronously, and the end of the swinging member extending outside the shell body can be connected to the massage member of the massage device, and the transmission forms of driving force are rotation, sliding and swinging in sequence, so that the speed of the massage member is continuously changed under the drive of the swinging member, thereby changing the contact force between the massage member and the user's head, and the synchronous member is driven by the driving component to periodically rotate forward and reverse, so as to complete the cyclic reciprocating opening and closing action of the sliding member, the swinging member and the massage member, thereby forming a repeated grasping and pinching human-like massage action, which can relieve the pressure and tension of the head, promote blood circulation, improve the blood oxygen supply to the brain, relieve the symptoms of headache and discomfort, and achieve a comfortable feeling. The scalp massager has a suitable scalp massage effect, which relieves the physical discomfort and fatigue caused by intense, fast-paced study or work to users; the linkage mode of using a synchronous part to synchronously drive a plurality of sliding parts and a swinging part replaces the existing gear set transmission mode, which can cover a larger massage area and a wider massage angle under the same volume and weight, and the transmissible force is enhanced, thereby enhancing the strength of the scalp pinching massage action; a plurality of sliding parts are used to replace the transmission mode of multiple cylindrical gears in the prior art, so that the noise generated during the massage process is smaller, and the user experience is improved; a combination of various movement modes such as rotation, sliding and swinging is adopted, which can make full use of the installation space in the shell, reduce the overall volume of the synchronization mechanism and the massage device, and facilitate user handheld operation.

BRIEF DESCRIPTION OF THE DRAWINGS

In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following briefly introduces the drawings required for use in the description of the embodiments of the present invention. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on the contents of the embodiments of the present invention and these drawings without paying any creative work.

FIG1 is an exploded schematic diagram of a synchronization mechanism provided in a specific embodiment of the present invention;

FIG2 is a schematic top view of a synchronization mechanism provided in a specific embodiment of the present invention;

3 is an exploded schematic diagram of a sliding member and a swinging member in a synchronization mechanism provided in a specific embodiment of the present invention;

FIG4 is a schematic diagram of the structure of a driving assembly in a synchronization mechanism provided in a specific embodiment of the present invention;

5 is a cross-sectional schematic diagram of a synchronization mechanism provided in a specific embodiment of the present invention;

6 is a schematic top view of a synchronizer, a drive plate and a connecting rod in a synchronizer mechanism provided in a specific embodiment of the present invention;

7 is a schematic structural diagram of a synchronizer, a first bevel gear, a second bevel gear, a connecting shaft, a driving plate and a connecting rod in a synchronizer mechanism provided in a specific embodiment of the present invention.

In the figure:

1. Housing; 2. Synchronous component; 3. Driving component;

11. first housing; 12. mounting plate; 13. second housing;

111, first avoidance groove; 112, third mounting column; 113, first through hole; 114, third through hole;

121, slide groove; 122, avoidance hole; 123, second mounting column; 124, avoidance gap;

131, hinged portion; 132, mounting boss; 133, second avoidance groove; 134, fourth mounting column;

21. Synchronous member; 22. Sliding member; 23. Swinging member; 24. Buffer elastic member; 25. Bearing;

211, driving groove; 212, meshing portion; 213, first mounting column; 214, second through hole;

221, sliding part; 222, driving part; 223, rack part; 224, limiting part;

231, gear tooth portion; 232, rotating portion; 233, mounting portion; 234, rotating shaft;

31. driving member; 32. first incomplete bevel gear; 33. first bevel gear; 34. second bevel gear;

35. Connecting shaft; 351. Circlip; 36. Cylindrical gear; 37. Reduction gear box; 38. Driving plate;

39. Connecting rod;

321, no teeth; 322, with teeth;

391. First pivot axis; 392. Second pivot axis.

DETAILED DESCRIPTION

In order to make the technical problems solved by the present invention, the technical solutions adopted and the technical effects achieved clearer, the technical solutions of the embodiments of the present invention will be further described in detail below in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative work are within the scope of protection of the present invention.

In the description of the present invention, it should be noted that the terms "center", "up", "down", "left", "right", "vertical", "horizontal", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first" and "second" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance. Among them, the terms "first position" and "second position" are two different positions.

In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection or a detachable connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, and it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

As shown in FIG1 , this embodiment provides a synchronization mechanism, which includes a housing 1, a synchronization assembly 2 and a drive assembly 3. The synchronization assembly 2 includes a rotatable synchronization member 21 and a plurality of sliding members 22 and a swinging member 23. The synchronization member 21 is arranged in the housing 1, the sliding member 22 is slidably arranged in the housing 1, one end of the swinging member 23 is rotatably arranged in the housing 1, and the other end extends out of the housing 1. The swinging member 23 is transmission-connected with the sliding member 22, and the sliding member 22 is slidably connected with the synchronization member 21. The rotating synchronization member 21 can drive a plurality of sliding members 22 to slide at the same time, thereby driving a plurality of swinging members 23 to swing synchronously. The drive assembly 3 is used to drive the synchronization member 21 to periodically rotate forward and reverse.

The synchronization mechanism can be used in a massage device for head massage. The rotating synchronization member 21 can simultaneously drive several sliding members 22 to slide in the shell 1, and then drive several swinging members 23 to swing synchronously. The end of the swinging member 23 extending outside the shell 1 can be connected to the massage member of the massage device. The transmission form of the driving force is rotation, sliding and swinging, so that the speed of the massage member is constantly changing under the drive of the swinging member 23, thereby changing the contact force between the massage member and the user's head. The synchronization member 21 is driven by the driving component 3 to periodically rotate forward and reverse, and the sliding member 22, the swinging member 23 and the massage member are completed. The reciprocating opening and closing action of the sliding member 22, the swinging member 23 and the massage member is completed, forming a repeated grasping and pinching human-like massage action, which can relieve the pressure and tension of the head, and can also promote blood circulation, improve the blood oxygen supply to the brain, relieve the symptoms of headache, achieve a comfortable scalp massage effect, and reduce the physical discomfort and fatigue brought to the user by tense and fast-paced study or work.

The linkage mode of using a synchronous member 21 to synchronously drive a plurality of sliding members 22 and a swinging member 23 replaces the existing gear set transmission mode. Under the same volume and weight, a larger massage area and a wider massage angle can be covered, and the transmissible force is enhanced, thereby enhancing the strength of the scalp grabbing and kneading massage action. A plurality of sliding members 22 are used to replace the transmission mode of multiple cylindrical gears meshing in the prior art, so that the noise generated during the massage process is smaller, thereby improving the user experience. A combination of various movement modes such as rotation, sliding and swinging is adopted, which can make full use of the installation space in the shell 1, reduce the overall volume of the synchronous mechanism and the massage device, and facilitate user handheld operation.

Optionally, one of the synchronizer 21 and the sliding member 22 is provided with a driving groove 211, and the other is provided with a driving portion 222 that slidably cooperates with the driving groove 211. Since the synchronizer 21 and the sliding member 22 have different movement modes, the driving groove 211 and the driving portion 222 are used to effectively transmit the force, and the driving groove 211 can limit the movement of the driving portion 222. The movement trajectory of the driving portion 222 can be determined according to the shape of the driving groove 211, which is convenient for trajectory planning. In this embodiment, the synchronizer 21 can be a disc-shaped structure, and the sliding member 22 can be a block-shaped structure. For the convenience of assembly, the driving groove 211 can be set on the synchronizer 21, and the driving portion 222 can be set on the sliding member 22. The driving portion 222 can be a cylindrical structure, and the side wall of the driving groove 211 is a smooth surface, thereby reducing the friction resistance between the two.

As shown in FIG. 2 , optionally, the driving groove 211 is curved, and the driving groove 211 has a proximal end and a distal end, and the proximal end is close to the rotation axis of the synchronous member 21 relative to the distal end. The curved driving groove 211 can be smoothly connected with the driving portion 222 to prevent the sliding member 22 from getting stuck. The driving portion 222 slides between the proximal end and the distal end of the driving groove 211. For example, when the synchronous member 21 rotates forward, the driving portion 222 slides from the proximal end of the driving groove 211 to the distal end, and when the synchronous member 21 rotates reversely, the driving portion 222 slides from the distal end of the driving groove 211 to the proximal end. The proximal end and the distal end of the driving groove 211 can also mechanically limit the driving portion 222 of the sliding member 22, thereby improving the safety of massage. The driving groove 211 can be a part of a planar spiral line, and the center of the planar spiral line is the rotation axis of the synchronous member 21. The driving groove 211 can also be a curve of other shapes, depending on the required motion trajectory of the sliding member 22. The number of the driving grooves 211 is the same as the number of the sliding members 22. In the present embodiment, there may be five driving grooves 211 and five sliding members 22. Each driving groove 211 occupies approximately one sixth of the circumferential space of the synchronizer 21, and the driving assembly 3 occupies approximately one sixth of the circumferential space of the synchronizer 21, thereby reasonably allocating the installation space.

As shown in FIG3 , optionally, a rack portion 223 is provided on the sliding member 22, and a gear portion 231 meshing with the rack portion 223 is provided on the swinging member 23. The use of a gear rack transmission between the sliding member 22 and the swinging member 23 has the following advantages: strong load-bearing capacity, high transmission accuracy, long service life, smooth operation, high reliability, and the ability to ensure a constant transmission ratio. The rack portion 223 and the gear portion 231 can be a straight tooth structure or a helical tooth structure. The swinging member 23 moves in the form of swinging, and does not need to rotate a full circle. Therefore, the gear portion 231 can be a partial gear to reduce processing costs. It can be understood that a partial gear refers to a portion of a full circle of gears, for example, the center angle of a partial gear can be between 30°-120°. The gear portion 231 can be integrally formed at one end of the swinging member 23 close to the sliding member 22, which is convenient for mass production. Of course, in some embodiments, the gear portion 231 may also be a full circle of gear teeth, and existing gears on the market can be directly fixed on the swinging member 23, which is convenient for obtaining materials.

As shown in Figures 1 and 2, since the synchronizer 21 needs to rotate forward and reverse periodically, the impact is relatively frequent. In order to extend the service life of the synchronizer 21, optionally, a buffer elastic member 24 is provided between the synchronizer 21 and the housing 1. In this embodiment, the buffer elastic member 24 can be a spring, which is easy to obtain and has low cost. A first mounting post 213 is provided on the synchronizer 21, and one end of the spring is fixedly connected to the first mounting post 213. A second mounting post 123 is provided on the housing 1, and the other end of the spring is fixedly connected to the second mounting post 123. In some embodiments, the buffer elastic member 24 can also be an elastic buffer pad, such as a soft rubber ring, an elastic ring, etc. The buffer elastic member 24 can also be a friction plate or a coil spring, which can be convenient for absorbing the impact energy of the synchronizer 21.

As shown in FIGS. 4 and 5 , in some embodiments, the driving assembly 3 may include a first incomplete bevel gear 32, a first bevel gear 33, a second bevel gear 34 and a connecting shaft 35, wherein the connecting shaft 35 is rotatably disposed in the housing 1, the first bevel gear 33 and the second bevel gear 34 are disposed on the connecting shaft 35 at intervals, the first bevel gear 33 is transmission-connected with the synchronizer 21, and when the first incomplete bevel gear 32 rotates, the first incomplete bevel gear 32 can intermittently mesh with the first bevel gear 33 or the second bevel gear 34, so that the synchronizer 21 periodically rotates forward and reversely. For example, when the first incomplete bevel gear 32 meshes with the first bevel gear 33, the connecting shaft 35 rotates forward, thereby driving the synchronizer 21 to rotate forward through the first bevel gear 33. When the first incomplete bevel gear 32 meshes with the second bevel gear 34, the connecting shaft 35 rotates in the reverse direction, thereby driving the synchronizer 21 to rotate in the reverse direction through the first bevel gear 33. It can be understood that within the rotation cycle of the first incomplete bevel gear 32, the first incomplete bevel gear 32 may not mesh with the first bevel gear 33 or the second bevel gear 34 for a period of time. At this time, the synchronizer 21 does not rotate, which is convenient for maintaining the current massage position for a period of time, which is closer to the professional massage technique of acupoint massage and improves the massage comfort and massage effect.

It can be understood that, as shown in FIG. 4 , a toothless portion 321 and a toothed portion 322 are provided on the outer peripheral wall of the first incomplete bevel gear 32. The toothless portion 321 can avoid the first bevel gear 33 and the second bevel gear 34, and the toothed portion 322 can mesh with the first bevel gear 33 or the second bevel gear 34. The toothed portion 322 is within a half circle to avoid interference. The toothed portion 322 can be one-third, one-quarter, one-sixth, etc. of a complete circle of gears. The number of teeth of the first bevel gear 33 and the second bevel gear 34 can be the same or different. The ratio of the number of teeth of the first bevel gear 33 and the second bevel gear 34 can be determined according to the time ratio of the forward and reverse rotation of the synchronizer 21. The first bevel gear 33 and the second bevel gear 34 can be integrally formed with the connecting shaft 35, respectively, to facilitate batch processing. The two ends of the connecting shaft 35 can be respectively mounted on the bearing seat in the housing 1 to reduce the rotation resistance. A key structure can be provided on the connecting shaft 35, and the first bevel gear 33 and the second bevel gear 34 can be respectively provided with a key groove matched with the key structure to realize motion transmission. A retaining spring 351 may be provided on the connecting shaft 35 to limit the first bevel gear 33 or the second bevel gear 34. The first incomplete bevel gear 32 can rotate in a single direction, thereby simplifying the driving method of the driving source.

In this embodiment, the rotation axis of the synchronizer 21 can be parallel to the rotation axis of the first bevel gear 33. Optionally, the drive assembly 3 also includes a cylindrical gear 36 disposed on the connecting shaft 35, and the cylindrical gear 36 rotates synchronously with the first bevel gear 33. The synchronizer 21 is provided with a meshing portion 212 that meshes with the cylindrical gear 36. The meshing portion 212 is a cylindrical tooth structure, and the meshing portion 212 can be disposed on the circumferential outer edge of the synchronizer 21. The cylindrical gear 36 and the first bevel gear 33 can be an integrally formed structure, which is convenient for batch manufacturing, reduces assembly steps, and improves assembly efficiency. In some embodiments, the rotation axis of the synchronizer 21 can be perpendicular to the rotation axis of the first bevel gear 33, and the first bevel gear 33 can directly mesh with the bevel tooth structure on the circumferential outer edge of the synchronizer 21.

Optionally, the drive assembly 3 also includes a drive member 31, which is used to drive the first incomplete bevel gear 32 to rotate. The drive member 31 can be a servo motor, which is convenient for realizing automatic control. A reduction gear box 37 can also be provided between the servo motor and the first incomplete bevel gear 32, so as to convert the high-speed rotation of the output shaft of the servo motor into a low-speed rotation with large torque. The rotation axis of the synchronizer 21 can be arranged perpendicular to the output shaft of the servo motor, so as to facilitate the horizontal placement of the servo motor and reduce the vertical space occupied by the synchronization mechanism. At the same time, this arrangement can make the massage device similar to a comb-like structure, the synchronization assembly 2 is located in the comb teeth and comb body part of the comb-like structure, and the servo motor and the battery for power supply are located in the handle part of the comb-like structure, which is convenient for users to hold.

In some embodiments, the drive assembly 3 may include a drive shaft, a second incomplete bevel gear, a third incomplete bevel gear and a third bevel gear, wherein the second incomplete bevel gear and the third incomplete bevel gear are arranged on the drive shaft at intervals, the third bevel gear is rotatably arranged in the housing 1, and the third bevel gear is transmission-connected with the synchronizer 21. When the drive shaft rotates, the third bevel gear can intermittently mesh with the second incomplete bevel gear or the third incomplete bevel gear, so that the synchronizer 21 rotates forward and reverse periodically. For example, when the second incomplete bevel gear is meshed with the third bevel gear, the third bevel gear rotates forward, thereby driving the synchronizer 21 to rotate forward. When the third incomplete bevel gear is meshed with the third bevel gear, the third bevel gear rotates reversely, thereby driving the synchronizer 21 to rotate reversely.

It is understandable that, during the rotation cycle of the drive shaft, the third bevel gear may not mesh with the second incomplete bevel gear or the third incomplete bevel gear for a period of time, and the synchronizer 21 does not rotate at this time, so as to facilitate maintaining the current massage position for a period of time and improve the massage comfort and massage effect. The gear tooth structures of the second incomplete bevel gear and the third incomplete bevel gear are both within half a circle to avoid interference. The gear tooth structures of the second incomplete bevel gear and the third incomplete bevel gear may be one-third, one-quarter, one-sixth, etc. of a complete gear circle. The second incomplete bevel gear and the third incomplete bevel gear may be formed integrally with the drive shaft, respectively, to facilitate batch processing. The two ends of the drive shaft may be respectively mounted on the bearing seats in the housing 1 to reduce the rotation resistance. A key structure may be provided on the drive shaft, and the second incomplete bevel gear and the third incomplete bevel gear may be respectively provided with keyways that cooperate with the key structure to realize motion transmission. The drive shaft may rotate in a single direction, thereby simplifying the driving mode of the drive source.

In some embodiments, as shown in FIG. 6 and FIG. 7 , the synchronization mechanism may further include a connecting rod 39 and a driving disk 38 that can periodically rotate forward and reversely. One end of the connecting rod 39 is rotationally connected to the synchronizer 21 through a first pivot shaft 391, and the other end is rotationally connected to the driving disk 38 through a second pivot shaft 392. The first pivot shaft 391 is non-coaxially arranged with the rotation axis of the synchronizer 21, and the second pivot shaft 392 is non-coaxially arranged with the rotation axis of the driving disk 38. The connecting rod 39, the line connecting the first pivot shaft 391 and the rotation axis of the synchronizer 21, the line connecting the second pivot shaft 392 and the rotation axis of the driving disk 38, and the line connecting the rotation axis of the synchronizer 21 and the rotation axis of the driving disk 38 can form a double crank mechanism, so that the synchronizer 21 moves smoothly. When the driving disk 38 rotates forward, the connecting rod 39 drives the synchronizer 21 to rotate forward. When the driving disk 38 rotates reversely, the connecting rod 39 drives the synchronizer 21 to rotate reversely. The principle of the double crank mechanism can be applied to the transmission connection between the first bevel gear 33 and the synchronizer 21. The drive disc 38 can be connected to the first bevel gear 33, and the periodic forward and reverse rotation of the first bevel gear 33 drives the drive disc 38 to periodically reverse. The drive disc 38 can also be connected to the third bevel gear, and the periodic forward and reverse rotation of the third bevel gear drives the drive disc 38 to periodically reverse. Of course, the drive disc 38 can also be directly driven by an independent drive source that can periodically reverse.

In some embodiments, the synchronizer 21 can also be directly driven by a periodic forward and reverse driving source, and the synchronization mechanism also includes a driving motor connected to the synchronizer 21, and the driving motor can periodically forward and reverse to drive the synchronizer 21 to periodically forward and reverse. For example, a frequency converter can be used to control the periodic forward and reverse rotation of the driving motor. By setting the multi-function terminal, closing a certain terminal and the common terminal, the frequency converter will drive the motor to rotate forward, and closing another terminal and the common terminal, the frequency converter will drive the motor to reverse. This is a prior art and will not be repeated here.

As shown in FIG1 , optionally, the housing 1 includes a first housing 11, a mounting plate 12, and a second housing 13. The first housing 11 and the second housing 13 are connected, the mounting plate 12 is disposed between the first housing 11 and the second housing 13, the synchronizing member 21 is rotatably disposed on the second housing 13, the sliding member 22 is slidably disposed on the mounting plate 12, and the swinging member 23 is rotatably disposed on the mounting plate 12. The first housing 11 and the second housing 13 are buckled together to form a receiving space, and the mounting plate 12, the synchronizing member 21, and the sliding member 22 are all located in the receiving space. The first housing 11 and the second housing 13 can be fixedly connected by bolts, and a plurality of third through holes 114 are disposed on the first housing 11, and a plurality of fourth mounting posts 134 are disposed on the second housing 13. The bolts pass through the third through holes 114 and are threadedly connected with the threaded holes of the fourth mounting posts 134. The edge of the first housing 11 is provided with a first avoidance groove 111, which is used to avoid the first bevel gear 33. The edge of the mounting plate 12 is provided with a avoidance notch 124, which is used to avoid the connecting shaft 35 and the first incomplete bevel gear 32. The edge of the second housing 13 is provided with a second avoidance groove 133, which is used to avoid the second bevel gear 34. The outer peripheral side of the first housing 11 is provided with a third mounting column 112 for mounting the drive assembly 3. The center of the first housing 11 is provided with a first through hole 113, and the center of the synchronizer 21 is provided with a second through hole 214. The first through hole 113 and the second through hole 214 are coaxially arranged, which can be used for assembly positioning, and can also be used to place a box containing essential oil, so as to realize the supply of essential oil while massaging and improve the massage comfort.

As shown in Fig. 1 and Fig. 3, optionally, a hinged portion 131 is provided on the second housing 13, and the swinging member 23 includes a rotating portion 232 and a mounting portion 233, wherein the rotating portion 232 is rotatably connected to the hinged portion 131 via a rotating shaft 234, and the mounting portion 233 is used to connect with the massage member. The hinged portion 131 may be a hollow cylindrical structure, and two hinged portions 131 may be provided, wherein the rotating portion 232 is located between the two hinged portions 131, and the rotating portion 232 and the hinged portion 131 are respectively provided with a hole structure for passing the rotating shaft 234. The mounting portion 233 may be a cylindrical structure, and the interior of the mounting portion 233 may be provided with an internal thread, so as to facilitate detachable connection with the external thread of the massage member, so that massage members of different sizes or shapes can be replaced according to different needs of users to massage different parts or enrich massage movements. In some embodiments, the massage member may also be detachably connected to the mounting portion 233 using a snap-fit structure.

Optionally, a slide groove 121 is provided on the mounting plate 12, and the sliding member 22 includes a sliding portion 221 that is slidably matched with the slide groove 121. The slide groove 121 may be a straight line, and the slide groove 121 may extend along the radial direction of the mounting plate 12. The sliding portion 221 may be a block structure, and both sides of the sliding portion 221 that contact the slide groove 121 are smooth surfaces to reduce sliding resistance. The sliding member 22 may also include a limiting portion 224 connected to the sliding portion 221, and the limiting portion 224 may be a plate-like structure, and the limiting portion 224 abuts against the upper surface of the mounting plate 12 to prevent the sliding portion 221 from being separated from the slide groove 121. The rack portion 223 is arranged on a side of the sliding portion 221 away from the limiting portion 224, and the upper surface of the rack portion 223 may abut against the lower surface of the mounting plate 12 to prevent the sliding portion 221 from being separated from the slide groove 121, and the lower surface of the rack portion 223 is a toothed structure.

Optionally, a mounting boss 132 is provided on the second housing 13, and the synchronizer 21 is rotatably connected to the mounting boss 132 via a bearing 25. The mounting boss 132 is divided into an upper and lower structure, the upper structure is sleeved with a bearing 25 on the outer circumference, and the outer diameter of the lower structure is larger than that of the upper structure, so that the bearing 25 and the synchronizer 21 can be axially limited, and the lower structure can be assembled with the mounting plate 12 to ensure that there is enough space between the mounting plate 12 and the second housing 13 to accommodate the sliding member 22.

To avoid interference between the mounting plate 12 and the mounting boss 132, optionally, a avoidance hole 122 is provided on the mounting plate 12, and the mounting boss 132 passes through the avoidance hole 122. The avoidance hole 122 can be connected to the slide groove 121, so that the sliding member 22 can be assembled from the avoidance hole 122.

This embodiment also provides a massage device, including a plurality of massage pieces and the above-mentioned synchronization mechanism, and the massage pieces can be installed on the mounting portion 233 of the swinging piece 23 of the synchronization mechanism. The massage device can be used for head massage, and the massage pieces can include a soft rubber sleeve, a massage head seat and a gripper, and the soft rubber sleeve is used to seal the opening of the housing 1, so that no pollutants will enter the housing 1 during the use of the massage device, which is conducive to keeping the massage device clean and hygienic. The massage head seat is embedded in the soft rubber sleeve, and the soft rubber sleeve is provided with at least one circle of folds, which circumferentially surround the massage head seat, and the gripper is connected to the massage head seat, and the gripper moves synchronously with the massage head seat. When the synchronization mechanism synchronously drives the plurality of massage pieces to move, the folds arranged around the massage head seat on the soft rubber sleeve can change shape with the movement of the massage head seat within its elastic deformation range, thereby not affecting the movement of the massage head seat, and improving the response speed of the massage head seat.

The rotating synchronous member 21 can simultaneously drive several sliding members 22 to slide in the shell 1, and then drive several swinging members 23 to swing synchronously. The end of the swinging member 23 extending outside the shell 1 can be connected to the massage member of the massage device. The transmission form of the driving force is rotation, sliding and swinging in sequence, so that the speed of the massage member is constantly changing under the drive of the swinging member 23, thereby changing the contact force between the massage member and the user's head. The synchronous member 21 is driven by the driving component 3 to periodically rotate forward and reverse, and the sliding member 22, the swinging member 23 and the massage member are completed. The cyclic reciprocating opening and closing action, forming a repeated grasping and pinching human-like massage action, can relieve the pressure and tension of the head, and can also promote blood circulation, improve the blood oxygen supply to the brain, relieve the symptoms of headache, achieve a comfortable scalp massage effect, and reduce the physical discomfort and fatigue brought to the user by tense and fast-paced study or work.

The linkage mode in which a synchronous member 21 synchronously drives a plurality of sliding members 22 and a swinging member 23 replaces the existing gear set transmission mode. With the same volume and weight, a larger massage area and a wider massage angle can be covered, and the transmittable force is enhanced, thereby enhancing the strength of the scalp pinching massage action. A plurality of sliding members are used to replace the transmission mode in which a plurality of cylindrical gears are meshed in the prior art, so that the noise generated during the massage process is smaller, thereby improving the user experience. A combination of various motion modes such as rotation, sliding and swinging is adopted, so that the installation space in the shell 1 can be fully utilized, and the overall volume of the synchronous mechanism and the massage device can be reduced, making it convenient for users to hold the massage in their hands.

Note that the above are only preferred embodiments of the present invention and the technical principles used. Those skilled in the art will understand that the present invention is not limited to the specific embodiments herein, and that various obvious changes, readjustments and substitutions can be made by those skilled in the art without departing from the scope of protection of the present invention. Therefore, although the present invention has been described in more detail through the above embodiments, the present invention is not limited to the above embodiments, and may include more other equivalent embodiments without departing from the concept of the present invention, and the scope of the present invention is determined by the scope of the appended claims.

Claims (10)

1. The synchronous mechanism, characterized by, include:

a housing (1);

The synchronous assembly (2) comprises a rotatable synchronous piece (21), a plurality of sliding pieces (22) and a swinging piece (23), wherein the synchronous piece (21) is arranged in the shell (1), the sliding pieces (22) are slidably arranged in the shell (1), one end of the swinging piece (23) is rotatably arranged in the shell (1), the other end of the swinging piece extends out of the shell (1), the swinging piece (23) is in transmission connection with the sliding pieces (22), the sliding pieces (22) are in sliding connection with the synchronous piece (21), and the sliding pieces (22) can be driven to slide simultaneously by rotating the synchronous piece (21), so that the swinging pieces (23) are driven to swing synchronously;

One of the synchronous piece (21) and the sliding piece (22) is provided with a driving groove (211), and the other is provided with a driving part (222) which is in sliding fit with the driving groove (211);

The driving grooves (211) are curved, the driving grooves (211) have a proximal end and a distal end, the proximal end is close to the rotation axis of the synchronous piece (21) relative to the distal end, and the number of the driving grooves (211) is the same as the number of the sliding pieces (22);

and the driving assembly (3) is used for driving the synchronous piece (21) to periodically rotate positively and negatively.

2. The synchronization mechanism according to claim 1, wherein a rack portion (223) is provided on the slider (22), and a gear tooth portion (231) engaged with the rack portion (223) is provided on the swinging member (23).

3. A synchronizing mechanism according to claim 1, characterised in that a buffer spring (24) is arranged between the synchronizing member (21) and the housing (1).

4. A synchronizing mechanism according to any of claims 1-3, characterised in that the drive assembly (3) comprises a first incomplete bevel gear (32), a first bevel gear (33), a second bevel gear (34) and a connecting shaft (35), the connecting shaft (35) being rotatably arranged in the housing (1), the first bevel gear (33) and the second bevel gear (34) being arranged on the connecting shaft (35) at intervals, the first bevel gear (33) being in driving connection with the synchronizing member (21), the first incomplete bevel gear (32) being intermittently engageable with the first bevel gear (33) or the second bevel gear (34) upon rotation of the first incomplete bevel gear (32) so as to periodically forward and reverse the synchronizing member (21).

5. The synchronizing mechanism according to claim 4, characterized in that the drive assembly (3) further comprises a spur gear (36) arranged on the connecting shaft (35), the spur gear (36) rotates synchronously with the first bevel gear (33), and the synchronizing member (21) is provided with a meshing part (212) for meshing transmission with the spur gear (36).

6. A synchronizing mechanism according to any of claims 1-3, characterised in that the drive assembly (3) comprises a drive shaft, a second partial bevel gear, a third partial bevel gear and a third bevel gear, which are arranged on the drive shaft at intervals, which third bevel gear is arranged in the housing (1) in rotation, which third bevel gear is in driving connection with the synchronizing member (21), which third bevel gear can intermittently mesh with the second partial bevel gear or the third partial bevel gear upon rotation of the drive shaft, so that the synchronizing member (21) is periodically rotated in forward and reverse.

7. A synchronizing mechanism according to any of claims 1-3, characterised in that the housing (1) comprises a first housing (11), a mounting plate (12) and a second housing (13), the first housing (11) and the second housing (13) being connected, the mounting plate (12) being arranged between the first housing (11) and the second housing (13), the synchronizing member (21) being arranged in rotation on the second housing (13), the sliding member (22) being arranged in sliding manner on the mounting plate (12), the swinging member (23) being arranged in rotation on the mounting plate (12).

8. The synchronization mechanism according to claim 7, wherein a hinge portion (131) is provided on the second housing (13), the swinging member (23) includes a rotating portion (232) and a mounting portion (233), the rotating portion (232) is rotatably connected with the hinge portion (131) through a rotating shaft (234), and the mounting portion (233) is for connection with a massage member.

9. The synchronization mechanism according to claim 7, wherein a chute (121) is formed in the mounting plate (12), and the slider (22) includes a sliding portion (221) slidably engaged with the chute (121).

10. Massage apparatus comprising a synchronizing mechanism according to any of claims 1-9.