Transmission and massager

Abstract

The application discloses a transmission device and a massager, and relates to the technical field of massagers, wherein the transmission device comprises a shell, a transmission mechanism and a massaging mechanism, the transmission mechanism comprises a first driving assembly and a second driving assembly, the first driving assembly and the second driving assembly are respectively arranged in the shell, the massaging mechanism is arranged in the shell and is in transmission connection with the first driving assembly and the second driving assembly respectively, wherein the first driving assembly can drive the massaging mechanism to lift relative to the bottom wall of the shell, and the second driving assembly can drive the massaging mechanism to perform eccentric motion relative to the shell.

Description

Technical Field

[0001] This invention relates to the field of massager technology, and in particular to a transmission device and a massager. Background Technology

[0002] With the fast pace of life, massagers, as a health product that can relieve physical fatigue and soothe the mind and body, have become increasingly popular among consumers.

[0003] In related technologies, the transmission device of massagers typically uses a single motor to drive the massage mechanism. Since the motor needs to drive multiple components simultaneously, the motor has a large load and low kinetic energy utilization efficiency, which in turn leads to uneven massage intensity and frequency, thus affecting the comfort of the massage and resulting in a poor user experience. Summary of the Invention

[0004] The main objective of this invention is to provide a transmission device and a massager, aiming to solve the technical problem of poor massage comfort in related technologies.

[0005] To achieve the above objectives, the present invention proposes a transmission device, the transmission device comprising: case; A transmission mechanism, comprising a first drive assembly and a second drive assembly, wherein the first drive assembly and the second drive assembly are respectively disposed within the housing; A massage mechanism is provided through the housing and is connected to the first drive assembly and the second drive assembly respectively. The first drive component can drive the massage mechanism to rise relative to the bottom wall of the housing, and the second drive component can drive the massage mechanism to perform eccentric movement relative to the housing.

[0006] In one embodiment, the first driving component includes a first driving member and a first synchronous pulley set sleeved on a first driving shaft, the driving end of the first driving member is connected to the first synchronous pulley set, and a driving gear is sleeved on the first driving shaft; the massage mechanism includes a first massage component and a second massage component, and the driving gear is meshed with the first massage component and the second massage component respectively.

[0007] In one embodiment, the massage mechanism includes at least one first massage component and at least one second massage component; Each of the first massage components includes a first limiting gear, a first connecting rod, and a first massage head. The first limiting gear is meshed with a first drive gear, the first connecting rod is connected to the first limiting gear, and the first massage head is connected to the first connecting rod. Each of the second massage components includes a second limiting gear, a second connecting rod, and a second massage head. The second limiting gear is meshed with a second drive gear, the second connecting rod is connected to the second limiting gear, and the second massage head is connected to the second connecting rod.

[0008] In one embodiment, each of the first limiting gears is provided with a first limiting groove, and the end of the first connecting rod away from the first massage head is provided with a first protrusion, which is limited to the first limiting groove. The second limiting gear has a second limiting groove, and the end of the second connecting rod away from the second massage head has a second protrusion, which is limited to the second limiting groove.

[0009] In one embodiment, the length of the end of each first link away from the first massage head is greater than the length of the end of each second link away from the second massage head; Alternatively, the driving end of the first driving member is provided with a worm gear, and the first synchronous pulley set includes two synchronous gears and a synchronous belt. The synchronous belt is sleeved on the two synchronous gears, one of the synchronous gears is sleeved on a second driving shaft, the second driving shaft is sleeved on a worm gear, and the worm gear is connected to the worm gear in a transmission connection.

[0010] In one embodiment, the second drive assembly includes a second drive member, a second synchronous wheel set, a first eccentric assembly, and a second eccentric assembly. The drive end of the second drive member is connected to the second synchronous wheel set, and the second synchronous wheel set is respectively engaged with the first eccentric assembly and the second eccentric assembly. The massage mechanism includes at least one first massage assembly and at least one second massage assembly. The two ends of the first eccentric assembly are respectively connected to each of the first massage assemblies, and the two ends of the second eccentric assembly are respectively connected to each of the second massage assemblies.

[0011] In one embodiment, the first eccentric component includes a first eccentric shaft and a first eccentric gear sleeved on the first eccentric shaft. The first eccentric gear is meshed with the second synchronous gear set, and a first massage component is sleeved on each end of the first eccentric shaft. The second eccentric component includes a second eccentric shaft and a second eccentric gear sleeved on the second eccentric shaft. The second eccentric gear is meshed with the second synchronous gear set. A second massage component is sleeved on each end of the second eccentric shaft.

[0012] In one embodiment, the first synchronous pulley set and the second synchronous pulley set are coaxially arranged, the first synchronous pulley set is rotatably sleeved on the first drive shaft and rotates coaxially with the first drive shaft; the second synchronous pulley set is sleeved on the first drive shaft.

[0013] In one embodiment, the first eccentric shaft is provided with a first locking groove, and the inner circumference of the first eccentric gear is provided with a first flat groove, the opening of the first flat groove being correspondingly provided with the opening of the first locking groove. The second eccentric shaft is provided with a second locking groove, and the inner circumference of the second eccentric gear is provided with a second flat groove, the opening of the second flat groove being correspondingly set with the opening of the second locking groove; Alternatively, the second synchronous gear set is respectively connected to the third drive gear and the fourth drive gear, the third drive gear is meshed with the first eccentric component, and the fourth drive gear is meshed with the second eccentric component.

[0014] The transmission device provided by this invention employs a dual-drive group and a coordinated massage mechanism. The first drive component first lifts the first and second massage components, and then the second drive component further drives the first and second massage components to perform eccentric motion. The transmission mechanism consists of the first and second drive components, each housed within the casing, capable of independent operation and mutual coordination. The massage mechanism is connected to both the first and second drive components. This structural design allows the massager to simultaneously perform two different massage actions: the first drive component lifts the massage mechanism, providing vertical massage force; the second drive component drives the massage mechanism to perform eccentric motion, providing rotational or oscillating massage. Through the coordinated operation of this dual-drive group, the massager can output a wider variety of massage modes to meet users' needs for different massage methods. The independent operation and coordinated operation of the first and second drive components enable the massager to output two different types of massage actions simultaneously, greatly enriching the massage modes and solving the problem in related technologies where the transmission device has limited output power and cannot simultaneously meet the needs of different massage methods. Attached Figure Description

[0015] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without creative effort.

[0016] Figure 1 A schematic diagram of a structure of an embodiment of the transmission device provided by the present invention; Figure 2 This is a schematic diagram of the structure of the first drive component and the massage mechanism provided by the present invention; Figure 3 This is a schematic diagram of the structure of the second drive component and the massage mechanism provided by the present invention; Figure 4 A schematic diagram of the transmission mechanism and massage mechanism provided by the present invention; Figure 5 for Figure 4 A magnified view of a section at point A in the middle; Figure 6 An exploded view of the first connecting rod and the first limiting gear provided for this invention; Figure 7 An exploded structural diagram of the second connecting rod and the second limiting gear provided for this invention; Figure 8 A schematic diagram of the structure of the first eccentric gear and the first eccentric shaft provided by the present invention; Figure 9 A schematic diagram of the structure of the second eccentric gear and the second eccentric shaft provided by the present invention.

[0017] Explanation of icon numbers: 1000. Transmission device; 1. Housing; 2. Transmission mechanism; 21. First drive assembly; 211. First drive member; 212. First synchronous gear set; 212a. First synchronous gear; 212b. Second synchronous gear; 213. First drive shaft; 214. First drive gear; 215. Second drive gear; 216. Worm gear; 217. Second drive shaft; 22. Second drive assembly; 221. Second drive member; 222. Second synchronous gear set; 222a. Third synchronous gear; 222b. Fourth synchronous gear; 223. First eccentric shaft; 223a. First locking groove; 224. First eccentric gear; 224a, First flat groove; 225, Second eccentric shaft; 225a, Second locking groove; 226, Second eccentric gear; 226a, Second flat groove; 227, Third transmission gear; 228, Third drive gear; 229, Fourth drive gear; 3, Massage mechanism; 31, First massage assembly; 311, First limiting gear; 311a, First limiting groove; 312, First connecting rod; 312a, First protrusion; 313, First massage head; 32, Second massage assembly; 321, Second limiting gear; 321a, Second limiting groove; 322, Second connecting rod; 322a, Second protrusion; 323, Second massage head.

[0018] The realization of the objective, functional features and advantages of the present invention will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation

[0019] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present invention.

[0020] It should be noted that if the embodiments of the present invention involve directional indicators (such as up, down, left, right, front, back, etc.), the directional indicators are only used to explain the relative positional relationship and movement of the components in a specific posture. If the specific posture changes, the directional indicators will also change accordingly.

[0021] Furthermore, if the embodiments of this invention involve descriptions such as "first" or "second," these descriptions are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined with "first" or "second" may explicitly or implicitly include at least one of those features. Additionally, the use of "and / or" or "and / or" throughout the text includes three parallel solutions. For example, "A and / or B" includes solution A, solution B, or a solution where both A and B are satisfied simultaneously. Furthermore, the technical solutions of the various embodiments can be combined with each other, but this must be based on the ability of those skilled in the art to implement them. When the combination of technical solutions is contradictory or impossible to implement, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection claimed by this invention.

[0022] The present invention proposes a transmission device 1000.

[0023] Please see Figures 1 to 3 In one embodiment of the present invention, the transmission device 1000 includes a housing 1, a transmission mechanism 2, and a massage mechanism 3. The transmission mechanism 2 includes a first drive component 21 and a second drive component 22, which are respectively disposed in the housing 1. The massage mechanism 3 is disposed in the housing 1 and is transmittedly connected to the first drive component 21 and the second drive component 22. The first drive component 21 can drive the massage mechanism 3 to rise relative to the bottom wall of the housing 1, and the second drive component 22 can drive the massage mechanism 3 to perform eccentric movement relative to the housing 1.

[0024] In this embodiment, it should be noted that the transmission device 1000 can be applied to scenarios such as massagers and massage vibrating plates, including but not limited to massagers in home settings and massagers in car seats. Combined with Figure 1It is understood that the transmission mechanism 2 is used to drive the massage mechanism 3 to move, thereby realizing the massage action. The massage mechanism 3, driven by the transmission mechanism 2, drives the massage head of the massage mechanism 3 to swing, thereby providing a physical massage to the human body. The first drive assembly 21 and the second drive assembly 22 can be fixed to the housing 1 by bolt connection, riveting connection, or other means. It is understood that multiple cavities are provided inside the housing 1 to better limit the positioning of the first drive assembly 21, the second drive assembly 22, and the massage mechanism 3. The first drive assembly 21 is used to drive the massage mechanism 3 to lift, and its initial position is a plane parallel to the bottom wall of the housing 1. Under the drive of the first drive assembly 21, it can be lifted relative to the bottom wall of the housing 1. The implementation method of the first drive assembly 21 driving the massage mechanism 3 to lift is as follows: In one embodiment, the motor meshes with a gear and a rack, and the rack is connected to the massage mechanism 3. When the motor drives the gear to rotate, the rack moves in a straight line, thereby driving the massage assembly to achieve the lifting action. In another embodiment, the first drive assembly 21 uses an electric push rod as the drive element. The extension and retraction of the push rod are controlled by a motor, thereby raising the massage mechanism 3. The second drive assembly 22 is used to drive the massage mechanism 3 to perform eccentric motion relative to the housing 1 after the action of the first drive assembly 21. The implementation is as follows: In one embodiment, the second drive assembly 22 includes a motor and an eccentric wheel. The motor drives the eccentric wheel to rotate, and the eccentric structure of the eccentric wheel causes the massage mechanism 3 to produce eccentric motion. In another embodiment, the second drive assembly 22 has eccentric cams at both ends of the rotating shaft, and one end of the massage arm is rotatably connected to the eccentric cam. When the rotating shaft rotates, the eccentric cam drives the massage arm to reciprocate radially and axially.

[0025] The transmission device 1000 provided by this invention employs a dual-drive group and a massage mechanism 3 working in tandem. First, the first drive component 21 drives the first massage component 31 and the second massage component 32 to lift. Then, the second drive component 22 further drives the first massage component 31 and the second massage component 32 to perform eccentric motion. The transmission mechanism 2 consists of the first drive component 21 and the second drive component 22, which are respectively installed in the housing 1 and can operate independently while cooperating with each other. The massage mechanism 3 is connected to both the first drive component 21 and the second drive component 22. This structural design allows the massager to simultaneously perform two different massage actions: the first drive component 21 drives the massage mechanism 3 to lift, providing vertical massage force; the second drive component 22 drives the massage mechanism 3 to perform eccentric motion, providing rotational or oscillating massage. Through this synergistic operation of the dual drive group, the massager can output a wider variety of massage modes to meet the user's needs for different massage methods. The independent operation and coordinated cooperation of the first drive component 21 and the second drive component 22 enable the massager to output two different types of massage movements at the same time, greatly enriching the massage modes and solving the problem in related technologies that the transmission device 1000 has limited output power and cannot meet the needs of different massage methods at the same time.

[0026] In one embodiment of the present invention, the first driving component 21 includes a first driving member 211 and a first synchronous wheel set 212 sleeved on the first driving shaft 213. The driving end of the first driving member 211 is connected to the first synchronous wheel set 212, and the first driving shaft 213 is sleeved with a driving gear. The massage mechanism 3 includes a first massage component 31 and a second massage component 32, and the driving gear is meshed with the first massage component 31 and the second massage component 32 respectively.

[0027] In this embodiment, combined with Figure 2The first driving component 211 is used to drive the first synchronous pulley set 212. The type of the first driving component 211 includes, but is not limited to, servo motors, stepper motors, etc., which are not limited here. The number of driving gears is adapted to the number of the first massage components 31 and the second massage components 32, and each driving gear is meshed with the first massage component 31 and the second massage component 32 respectively. The driving end of the first driving component 211 can be connected to the gears of the first synchronous pulley set 212 through a transmission shaft, worm gear 216, etc. The first synchronous pulley set 212 includes a synchronous belt, a first synchronous pulley 212a, and a second synchronous gear 212b. The first synchronous gear 212a is connected to the driving end of the first driving component 211, and the first synchronous gear 212a and the second synchronous gear 212b are connected through a synchronous belt. The second synchronous gear 212b is sleeved on the first driving shaft 213 and rotates coaxially with the first driving shaft 213. When the first driving member 211 is driven, its driving end drives the first synchronous gear 212a of the first synchronous pulley set 212 to rotate, which in turn drives the second synchronous gear 212b to rotate via a synchronous belt, thereby driving the first drive shaft 213 to rotate. The first drive shaft 213 has a first drive gear 214 and a second drive gear 215 respectively fitted onto its two ends. The teeth of the first drive gear 214 are connected to two first transmission gears. Each first transmission gear includes a first gear segment and a second gear segment arranged coaxially, with the number of teeth in the first gear segment being different from the number of teeth in the second gear segment. The first gear segment connects to the first drive gear 214, and the second gear segment connects to the first limiting gear 311 in the first massage assembly 31. Similarly, the teeth of the second drive gear 215 are connected to two second transmission gears. Each second transmission gear includes a third gear segment and a fourth gear segment arranged coaxially, with the number of teeth in the third gear segment being different from the number of teeth in the fourth gear segment. The third gear segment connects to the second drive gear 215, and the fourth gear segment connects to the second limiting gear 321 in the second massage assembly 32. To prevent the first drive gear 214 and the second drive gear 215 from moving relative to the first drive shaft 213, the inner circumferences of the first drive gear 214 and the second drive gear 215 are set to flat positions. This effectively ensures that the first drive gear 214 and the second drive gear 215 maintain a stable and reliable connection with the first drive shaft 213 during operation, and avoids transmission failure caused by relative movement.

[0028] In one embodiment of the present invention, the massage mechanism 3 includes at least one first massage component 31 and at least one second massage component 32. Each first massage component 31 includes a first limiting gear 311, a first connecting rod 312 and a first massage head 313. The first limiting gear 311 is meshed with a drive gear, the first connecting rod 312 is connected to the first limiting gear 311, and the first massage head 313 is connected to the first connecting rod 312. Each second massage component 32 includes a second limiting gear 321, a second connecting rod 322, and a second massage head 323. The second limiting gear 321 is meshed with the drive gear, the second connecting rod 322 is connected to the second limiting gear 321, and the second massage head 323 is connected to the second connecting rod 322.

[0029] In this embodiment, combined with Figure 2 It should be noted that the first limiting gear 311 and the second limiting gear 321 are used to limit the lifting height of the first massage head 313 and the second massage head 323, respectively, and the first connecting rod 312 and the second connecting rod 322 are used to support external forces. The first massage head 313 and the first connecting rod 312 can be connected by bolts, screws, or other means. The first connecting rod 312 and the first limiting gear 311 can be connected by pins, keys, or other means. It should be noted that during the actual operation of the transmission device 1000, the maximum massage distance of the first massage head 313 and the second massage head 323 is 305mm, the minimum massage distance of the first massage head 313 and the second massage head 323 is 90mm, and their massage range can reach 215mm. It is understandable that, in order to prevent the first connecting rod 312 and the second connecting rod 322 from rotating coaxially with the first eccentric shaft 223 and the second eccentric shaft 225 due to friction, and to reduce the friction generated during rotation, bearings are installed on the first connecting rod 312 and the second connecting rod 322 respectively. In conjunction with the above embodiment, it is understandable that when the first driving member 211 drives the first synchronous pulley group 212, driving the first driving shaft 213 and the driving gear sleeved on the first driving shaft 213 to rotate, since the driving gear is connected to the first limiting gear 311 and the second limiting gear 321 respectively, it drives the first limiting gear 311 and the second limiting gear 321 to rotate. Under the rotation of the first limiting gear 311, the first massage head 313, under the action of the first connecting rod 312, and the second massage head 323, under the action of the second connecting rod 322, rotate upwards with the rotation of the first limiting gear 311 and the second limiting gear 321, that is, gradually rise. In conjunction with... Figure 2 It should be noted that the massage assembly includes two first massage components 31 and two second massage components 32. The two first massage components 31 and two second massage components 32 are respectively disposed at opposite ends of the first drive shaft 213, and each first massage component 31 and second massage component 32 is meshed with the same drive gear. A first drive gear 214 and a second drive gear 215 are respectively sleeved at opposite ends of the first drive shaft 213, with the first drive gear 214 meshing with the first drive shaft 213. Figure 2 The first massage component 31 and the second massage component 32 on the right side are engaged with the second drive gear 215. Figure 2 The first massage component 31 and the second massage component 32 on the left side can lift the four massage heads through a first drive component 211.

[0030] In one embodiment of the present invention, each first limiting gear 311 is provided with a first limiting groove 311a, and the end of the first connecting rod 312 away from the first massage head 313 is provided with a first protrusion 312a, and the first protrusion 312a is limited within the first limiting groove 311a. The second limiting gear 321 has a second limiting groove 321a, and the end of the second connecting rod 322 away from the second massage head 323 has a second protrusion 322a, which is limited within the second limiting groove 321a.

[0031] In this embodiment, combined with Figure 2 , Figure 6 as well as Figure 7 It should be noted that, in order to limit the lifting and retraction of the first link 312, the second link 322, the first massage head 313, and the second massage head 323, a first baffle is provided on one side of the first limiting gear 311. A first limiting groove 311a is formed on the first baffle, and a first protrusion 312a is provided on the first link 312 corresponding to the position of the first limiting groove 311a, with the first protrusion 312a confined within the first limiting groove 311a. Similarly, a second baffle is provided on one side of the second limiting gear 321, and a second limiting groove 321a is formed on the second baffle. A second protrusion 322a is provided on the second link 322 corresponding to the position of the second limiting groove 321a, with the second protrusion 322a confined within the second limiting groove 321a. This configuration can limit the range of motion of the first link 312 and the second link 322, effectively controlling their movement trajectory.

[0032] In one embodiment of the present invention, the length of the end of each first link 312 away from the first massage head 313 is greater than the length of the end of each second link 322 away from the second massage head 323.

[0033] In this embodiment, to further increase the massage range of the massage head of the massage mechanism 3, the length of the end of the first connecting rod 312 away from the first massage head 313 is set to be longer than the length of the end of the second connecting rod 322 away from the second massage head 323. That is, the massage area of ​​the first massage head 313 connected to the first connecting rod 312 is wider than the massage area of ​​the second massage head 323 connected to the second connecting rod 322. Figure 2 This creates a massage area that is wider at the top and narrower at the bottom. The wider part corresponds to the first massage head 313 connected to the first link 312, which can be used to relax large areas of muscles and quickly relieve large-scale tension. The narrower part corresponds to the second massage head 323 connected to the second link 322, which can more accurately stimulate acupoints, tendons or muscles in narrower areas, taking into account both overall relaxation and local deep massage.

[0034] In one embodiment of the present invention, the driving end of the first driving member 211 is provided with a worm gear 216, and the first synchronous pulley group 212 includes two synchronous gears and a synchronous belt. The synchronous belt is sleeved on the two synchronous gears, one of which is sleeved on a second driving shaft 217. The second driving shaft 217 is sleeved on a worm wheel, and the worm wheel is connected to the worm gear 216 in a transmission connection.

[0035] In this embodiment, combined with Figure 2 It is understandable that, in order to achieve precise transmission, the driving end of the first driving member 211 is provided with a worm 216. The worm 216 is a helical threaded rod that meshes with the worm wheel, enabling the rotational motion to be transmitted from the first driving member 211 to the worm wheel. It should be noted that the two synchronous gears, namely the first synchronous gear 212a and the second synchronous gear 212b mentioned in the above embodiment, are tightly fitted between the first driving member 211 and the worm 216. To prevent relative movement between the motor and the worm 216, the worm 216 meshes with the worm wheel to provide torque. The second drive shaft 217 is used to transmit power from the first driving member 211 to the subsequent transmission components. The worm wheel and the second synchronous gear 212b rotate coaxially. It should be noted that, driven by the first driving component 211, power is transmitted to the worm gear 216, which further transmits power to the worm wheel. The worm wheel rotates accordingly, thereby driving the second driving shaft 217 and the first synchronous gear 212a to rotate. The rotation of the first synchronous gear drives the second synchronous gear 212b, which is sleeved on the same synchronous belt, to rotate. The rotation of the second synchronous gear 212b drives the first driving shaft 213 to rotate, which in turn drives the driving gear to rotate. The rotation of the driving gear then drives the first limiting gear 311 of the first massage component 31 and the second limiting gear 321 of the second massage component 32 to rotate. The rotation of the first limiting gear 311 then drives the first massage head 313 to rotate upward, i.e., the first massage head 313 is raised. The rotation of the second limiting gear 321 then drives the second massage head 323 to rotate upward, i.e., the second massage head 323 is raised.

[0036] In one embodiment of the present invention, the second drive assembly 22 includes a second drive member 221, a second synchronous wheel set 222, a first eccentric assembly, and a second eccentric assembly. The drive end of the second drive member 221 is connected to the second synchronous wheel set 222, and the second synchronous wheel set 222 is engaged with the first eccentric assembly and the second eccentric assembly respectively. The massage mechanism 3 includes at least one first massage assembly 31 and at least one second massage assembly 32. The two ends of the first eccentric assembly are respectively connected to each of the first massage assemblies 31, and the two ends of the second eccentric assembly are respectively connected to each of the second massage assemblies 32.

[0037] In this embodiment, the second drive assembly 22 is used to achieve eccentric motion of the massage mechanism 3 relative to the eccentric shaft. The second drive member 221 is used to provide power, and its drive end is connected to the second synchronous wheel set 222 to transmit power to the eccentric assembly. The first eccentric assembly is used to drive the first massage assembly 31 to perform massage actions and convert the power of the second synchronous wheel set 222 into eccentric motion. The second eccentric assembly is used to achieve massage actions of the second massage assembly 32 and convert the power of the second synchronous wheel set 222 into eccentric motion. Figure 3 It should be noted that when the first drive assembly 21 drives the massage heads of the first massage assembly 31 and the second massage assembly 32 to a certain position, the first drive member 211 in the first drive assembly 21 stops working. At this time, the second drive member 221 of the second drive assembly 22 is activated. The drive end of the second drive member 221 is connected to the second synchronous wheel set 222. The second synchronous wheel set 222 is engaged with the first eccentric assembly and the second eccentric assembly respectively. The first eccentric assembly then drives the first massage assembly 31 to perform eccentric movement relative to the first eccentric shaft 223 of the first eccentric assembly. The second eccentric assembly then drives the second massage assembly 32 to perform eccentric movement relative to the second eccentric shaft 225 of the second eccentric assembly.

[0038] In one embodiment of the present invention, the first eccentric component includes a first eccentric shaft 223 and a first eccentric gear 224 sleeved on the first eccentric shaft 223. The first eccentric gear 224 is meshed with a second synchronous gear set 222. A first massage component 31 is sleeved on both ends of the first eccentric shaft 223. The second eccentric assembly includes a second eccentric shaft 225 and a second eccentric gear 226 sleeved on the second eccentric shaft 225. The second eccentric gear 226 is meshed with the second synchronous gear set 222. A second massage assembly 32 is sleeved on each end of the second eccentric shaft 225.

[0039] In this embodiment, combined with Figure 3 , Figure 8 as well as Figure 9It should be noted that the first eccentric shaft 223 is used to drive the first massage component 31 to achieve eccentric movement, and the second eccentric shaft 225 is used to drive the second massage component 32 to achieve eccentric movement. A first eccentric gear 224 is sleeved on the first eccentric shaft 223, and the first eccentric gear 224 rotates coaxially with the first eccentric shaft 223. A second eccentric gear 226 is sleeved on the second eccentric shaft 225, and the second eccentric gear 226 rotates coaxially with the second eccentric shaft 225. The first eccentric shaft 223 and the second eccentric shaft 225 serve the same function in the entire transmission device 1000. It can be understood that the first eccentric shaft 223 has a first straight shaft section and a first off-axis section located at the end of the first straight shaft section. The axis of the first straight shaft section and the axis of the first off-axis section form an angle of 8.9 degrees. The first massage component 31 is sleeved on the first off-axis section. When the first eccentric shaft 223 rotates along with the first eccentric gear 224, the first massage component 31 undergoes an eccentric movement relative to the first straight axis section of the first eccentric shaft 223. Similarly, the second eccentric shaft 225 has a second straight axis section and a second off-axis section, with an angle of 8.9 degrees between the axis of the second straight axis section and the axis of the second off-axis section. The second massage component 32 is sleeved on the second off-axis section. When the second eccentric shaft 225 rotates along with the second eccentric gear 226, the second massage component 32 undergoes an eccentric movement relative to the second straight axis section of the first eccentric shaft 223. Figure 3 It should be noted that, in order to further realize this, two first massage components 31 are respectively sleeved on the opposite ends of the first eccentric shaft 223. The first eccentric shaft 223 has a first straight shaft section and two first off-axis sections located at the ends of the first straight shaft section. The first connecting rods 312 of the two first massage components 31 are sleeved on the first off-axis sections. Similarly, two second massage components 32 are respectively sleeved on the opposite ends of the second eccentric shaft 225. The second eccentric shaft 225 has a second straight shaft section and two second off-axis sections located at the ends of the second straight shaft section. The second connecting rods 322 of the two second massage components 32 are sleeved on the second off-axis sections, thereby enabling the massage head to swing up, down, left, and right.

[0040] In one embodiment of the present invention, the first synchronous pulley group 212 and the second synchronous pulley group 222 are coaxially arranged. The first synchronous pulley group 212 is rotatably sleeved on the first drive shaft 213 and rotates coaxially with the first drive shaft 213; the second synchronous pulley group 222 is sleeved on the first drive shaft 213.

[0041] In this embodiment, combined with Figure 4 and Figure 5It should be noted that both the first synchronizer set 212 and the second synchronizer set 222 are sleeved on the first drive shaft 213. The first synchronizer set 212 includes a first synchronizer gear 212a that is driven by the first drive member 211 and a second synchronizer gear 212b that is sleeved on the first drive shaft 213. The second synchronizer set 222 includes a third synchronizer gear 222a that is driven by the second drive member 221 and a fourth synchronizer gear 222b that is sleeved on the first drive shaft 213. The second synchronizer gear 212b and the fourth synchronizer gear 222b are coaxially arranged. The second synchronizer gear 212b is rotatably sleeved on the first drive shaft 213, and the fourth synchronizer gear 222b is sleeved on the first drive shaft 213 and has a clearance fit with the first drive shaft 213 to prevent the fourth synchronizer gear 222b from rotating when the second synchronizer gear 212b drives the first drive shaft 213 to rotate. The first drive shaft 213 rotates with the rotation of the second synchronous gear 212b. Since the fourth synchronous gear 222b is clearance-fitted with the first drive shaft 213, the first drive shaft 213 does not rotate with the rotation of the fourth synchronous gear 222b. It is understood that a third transmission gear 227 is also provided between the fourth synchronous gear 222b and the first drive shaft 213, through which the power transmitted by the second drive component 221 is transmitted to the first eccentric gear 224 and the second eccentric gear 226. Specifically, to prevent relative movement between the first synchronous gear set 212, the second synchronous gear set 222, and the first drive shaft 213, the second synchronous gear 212b, which is sleeved on the first drive shaft 213 in the first synchronous gear set 212, is fixed to the first drive shaft 213 by bolts or other fasteners. Similarly, the fourth synchronous gear 222b, which is sleeved on the first drive shaft 213 in the second synchronous gear set 222, is fixed to the first drive shaft 213 by bolts or other fasteners.

[0042] In one embodiment of the present invention, the first eccentric shaft 223 is provided with a first locking groove 223a, and the inner circumference of the first eccentric gear 224 is provided with a first flat groove 224a, the groove opening of the first flat groove 224a is correspondingly provided with the groove opening of the first locking groove 223a. The second eccentric shaft 225 has a second locking groove 225a, and the inner circumference of the second eccentric gear 226 has a second flat groove 226a, with the groove opening of the second flat groove 226a corresponding to the groove opening of the second locking groove 225a. Alternatively, the second synchronous gear set 222 is connected to the third drive gear 228 and the fourth drive gear 229 respectively. The third drive gear 228 is meshed with the first eccentric assembly, and the fourth drive gear 229 is meshed with the second eccentric assembly.

[0043] In this embodiment, combined with Figure 8 and Figure 9It should be noted that, in order to prevent relative movement between the first eccentric shaft 223 and the first eccentric gear 224, the first eccentric shaft 223 is provided with a first locking groove 223a, and the inner circumference of the first eccentric gear 224 is provided with a first flat groove 224a. This ensures that the first locking groove 223a and the first flat groove 224a are positioned opposite each other, thus limiting each other and preventing relative movement. Similarly, the second eccentric shaft 225 and the second eccentric gear 226 are configured in the same way as the first eccentric shaft 223 and the first eccentric gear 224.

[0044] Combination Figure 3 It is understood that the second synchronous pulley set 222 includes a synchronous belt, a third synchronous gear 222a and a fourth synchronous gear 222b. The third synchronous gear 222a is connected to the drive end of the second drive member 221. The fourth synchronous gear 222b is sleeved on the first drive shaft 213. A third transmission gear 227 is sleeved on the first drive shaft 213. The third transmission gear 227 is connected to the third drive gear 228 and the fourth drive gear 229 respectively. The third drive gear 228 is meshed with the first eccentric gear 224 sleeved on the first eccentric shaft 223. The fourth drive gear 229 is meshed with the second eccentric gear 226 sleeved on the second eccentric shaft 225. The third drive gear 228 includes a fifth gear segment and a sixth gear segment. The fifth gear segment meshes with the third transmission gear 227 on the first drive shaft, and the sixth gear segment meshes with the first eccentric gear 224. Driven by the second drive member 221, it can rotate the first eccentric shaft 223, thereby causing the first massage component 31 to move eccentrically relative to the first straight shaft segment of the first eccentric shaft 223. The fourth drive gear 229 includes a seventh gear segment and an eighth gear segment. The seventh gear segment meshes with the third transmission gear 227 on the first drive shaft 213, and the eighth gear segment meshes with the second eccentric gear 226. Driven by the second drive member 221, it can rotate the second eccentric shaft 225, thereby causing the second massage component 32 to move eccentrically relative to the second straight shaft segment of the second eccentric shaft 225. It can be understood that the connection relationship between the second synchronous pulley group 222 and the second drive member 221 is similar to the connection relationship between the first synchronous pulley group 212 and the first drive member 211. Further details are omitted here. Figure 4 The second synchronous gear set 222 and the second driving component 221 are both connected by a worm gear and worm 216. The worm gear is coaxially arranged with the third synchronous gear 222a of the second synchronous gear set 222 and can rotate coaxially.

[0045] In conjunction with the above embodiments, it should be noted that when the first driving member 211 starts to operate, its power is transmitted through the first synchronous pulley group 212 and the first transmission gear to the first limiting gear 311 of the first massage component 31 and the second limiting gear 321 of the second massage component 32, thereby driving the first massage head 313 of the first massage component 31 and the second massage head 323 of the second massage component 32 to rotate upward. The lifting height is controlled by the first limiting groove 311a of the first limiting gear 311 in the first massage component 31 and the second limiting groove 321a of the second limiting gear 321 in the second massage component 32, ensuring that the first massage head 313 and the second massage head 323 reach the predetermined position that fits the human body. Next, the first drive component 211 stops working, and the second drive component 221 is activated. Its power is transmitted through the second synchronous pulley set 222 and the third drive gear 228 to the first eccentric gear 224 of the first eccentric shaft 223 and the second eccentric gear 226 of the second eccentric shaft 225, thereby driving the first massage head 313 of the first massage assembly 31 and the second massage head 323 of the second massage assembly 32 to perform eccentric motion. When the massage program ends, the second drive component 221 stops working first, and then the first drive component 211 starts to rotate in reverse, thereby driving the first massage head 313 of the first massage assembly 31 and the second massage head 323 of the second massage assembly 32 to rotate downwards and return to the initial position, thus completing the transmission of the entire transmission mechanism 2.

[0046] The present invention also proposes a massager, which includes a transmission device 1000 as described above. The specific structure of the transmission device 1000 is as described in the above embodiments. Since the massager adopts all the technical solutions of all the above embodiments, it has at least all the beneficial effects brought about by the technical solutions of the above embodiments, which will not be described in detail here.

[0047] In this embodiment, it should be noted that the massager also includes a controller, which is communicatively connected to the transmission device 1000. The controller sends signals to the transmission device 1000, thereby realizing the movement of the transmission device 1000. This massager can be applied to various scenarios such as home use and car seat applications, and is not limited here.

[0048] The above description is merely an exemplary embodiment of the present invention and does not limit the patent scope of the present invention. Any equivalent structural transformations made using the contents of the present invention specification and drawings under the technical concept of the present invention, or direct / indirect applications in other related technical fields, are included within the patent protection scope of the present invention.

Claims

1. A transmission device, characterized in that, The transmission device includes: case; A transmission mechanism, comprising a first drive assembly and a second drive assembly, wherein the first drive assembly and the second drive assembly are respectively disposed within the housing; A massage mechanism is provided through the housing and is connected to the first drive assembly and the second drive assembly respectively. The first drive component can drive the massage mechanism to rise relative to the bottom wall of the housing, and the second drive component can drive the massage mechanism to perform eccentric movement relative to the housing. The first drive assembly includes a first drive member and a first synchronous pulley set sleeved on a first drive shaft. The drive end of the first drive member is connected to the first synchronous pulley set, and a drive gear is sleeved on the first drive shaft. The massage mechanism includes a first massage component and a second massage component. The drive gear is meshed with the first massage component and the second massage component, respectively. The second drive assembly includes a second drive member, a second synchronous wheel set, a first eccentric assembly, and a second eccentric assembly. The drive end of the second drive member is connected to the second synchronous wheel set, and the second synchronous wheel set is meshed with the first eccentric assembly and the second eccentric assembly, respectively. The massage mechanism includes at least one first massage assembly and at least one second massage assembly. The two ends of the first eccentric assembly are respectively connected to each of the first massage assemblies, and the two ends of the second eccentric assembly are respectively connected to each of the second massage assemblies.

2. The transmission device as described in claim 1, characterized in that, The massage mechanism includes at least one first massage component and at least one second massage component; Each of the first massage components includes a first limiting gear, a first connecting rod, and a first massage head. The first limiting gear is meshed with a first drive gear, the first connecting rod is connected to the first limiting gear, and the first massage head is connected to the first connecting rod. Each of the second massage components includes a second limiting gear, a second connecting rod, and a second massage head. The second limiting gear is meshed with a second drive gear, the second connecting rod is connected to the second limiting gear, and the second massage head is connected to the second connecting rod.

3. The transmission device as described in claim 2, characterized in that, Each of the first limiting gears is provided with a first limiting groove, and the end of the first connecting rod away from the first massage head is provided with a first protrusion, which is limited to the first limiting groove. The second limiting gear has a second limiting groove, and the end of the second connecting rod away from the second massage head has a second protrusion, which is limited to the second limiting groove.

4. The transmission device as described in claim 2, characterized in that, The length of the end of each first link away from the first massage head is greater than the length of the end of each second link away from the second massage head; Alternatively, the driving end of the first driving member is provided with a worm gear, and the first synchronous pulley set includes two synchronous gears and a synchronous belt. The synchronous belt is sleeved on the two synchronous gears, one of the synchronous gears is sleeved on a second driving shaft, the second driving shaft is sleeved on a worm gear, and the worm gear is connected to the worm gear in a transmission connection.

5. The transmission device as described in claim 1, characterized in that, The first eccentric component includes a first eccentric shaft and a first eccentric gear sleeved on the first eccentric shaft. The first eccentric gear is meshed with the second synchronous gear set. A first massage component is sleeved on each end of the first eccentric shaft. The second eccentric component includes a second eccentric shaft and a second eccentric gear sleeved on the second eccentric shaft. The second eccentric gear is meshed with the second synchronous gear set. A second massage component is sleeved on each end of the second eccentric shaft.

6. The transmission device as described in claim 1, characterized in that, The first synchronous pulley set and the second synchronous pulley set are coaxially arranged. The first synchronous pulley set is rotatably sleeved on the first drive shaft and rotates coaxially with the first drive shaft; the second synchronous pulley set is sleeved on the first drive shaft.

7. The transmission device as described in claim 5, characterized in that, The first eccentric shaft has a first locking groove, and the inner circumference of the first eccentric gear has a first flat groove, with the opening of the first flat groove corresponding to the opening of the first locking groove. The second eccentric shaft is provided with a second locking groove, and the inner circumference of the second eccentric gear is provided with a second flat groove, the opening of the second flat groove being correspondingly set with the opening of the second locking groove; Alternatively, the second synchronous gear set is respectively connected to the third drive gear and the fourth drive gear, the third drive gear is meshed with the first eccentric component, and the fourth drive gear is meshed with the second eccentric component.

8. A massager, characterized in that, The massager includes the transmission device as described in any one of claims 1 to 7.

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