Compact massage movement

Abstract

This utility model relates to a compact massage mechanism, including a housing; the housing houses first and second drive motors and first and second drive shafts arranged in parallel. The first drive shaft is higher than the output shaft of the first drive motor, forming a battery storage space below it; the first drive motor drives the first drive shaft unidirectionally through a transmission assembly, on which a first massage component is mounted, and is also connected to the second drive shaft, which connects to the first massage component and houses a slidable second massage component. The second drive motor is located below the first output shaft. This utility model, by arranging the second drive motor below the output shaft of the first drive motor and the first drive shaft being higher than the first output shaft, provides ample battery storage space below the first drive shaft, while achieving a reasonable arrangement of dual drive motors and dual drive shafts, significantly reducing the overall size of the mechanism.

Description

Technical Field

[0001] This utility model relates to the field of massager technology, and in particular to a compact massage mechanism. Background Technology

[0002] Existing massage devices feature back kneading and tapping functions, covering a wide range of areas and offering diverse massage techniques, making them popular with consumers. However, because the kneading and tapping systems in typical massage devices are powered by separate motors, two motors are required. This results in a bulky structure, inefficient use of resources, material waste, high costs, and increased manufacturing and assembly difficulties, leading to weaker overall strength. Adding a width adjustment function would require an additional motor, significantly increasing the difficulty of optimizing the internal space of the mechanism. Furthermore, existing massage devices also necessitate the addition of a built-in battery, placing even greater demands on the utilization of the internal space. Utility Model Content

[0003] To address the aforementioned problems in the prior art, this utility model provides a compact massage mechanism.

[0004] To achieve the above objectives, the main technical solutions adopted by this utility model include:

[0005] A compact massage mechanism includes a housing; the housing houses a first drive motor, a second drive motor, a first transmission shaft, and a second transmission shaft; the first and second transmission shafts are arranged parallel to each other, and the installation height of the first transmission shaft is higher than the first output shaft of the first drive motor, so as to form a reserved space for accommodating a battery below the first transmission shaft; the second transmission shaft is positioned higher than the first transmission shaft; the first drive motor is unidirectionally connected to the first transmission shaft via a transmission assembly, driving the first transmission shaft to rotate unidirectionally; a plurality of first massage components are mounted on the first transmission shaft; the first drive motor is also connected to the second transmission shaft; the second transmission shaft is connected to the first massage components; a plurality of second massage components that can slide along its axial direction are sleeved on the second transmission shaft; the second drive motor is connected to the second massage components via a width adjustment assembly, for driving the second massage components to reciprocate along the axial direction of the second transmission shaft; the second drive motor is arranged below the first output shaft, and the second output shaft of the second drive motor is located below the horizontal plane of the first output shaft, achieving a compact layout of dual drive motors.

[0006] In one embodiment of this utility model, the transmission assembly includes a first connecting seat; a first bearing and a one-way bearing are coaxially arranged inside the first connecting seat; the inner rings of the first bearing and the one-way bearing are both connected to the first transmission shaft; a second pulley is integrally formed on the outer side of the first connecting seat; a first pulley is fixed on the first output shaft of the first drive motor, and the first pulley and the second pulley are connected by a transmission belt; the transmission belt forms a first mating part with the bottom of the first pulley and a second mating part with the bottom of the second pulley, and the height of the second mating part is not lower than that of the first mating part; the battery includes two cylindrical cells arranged side by side; the length direction of the battery is parallel to the axial direction of the first transmission shaft.

[0007] In one embodiment of this utility model, the first output shaft of the first drive motor includes a first worm; a first worm wheel meshes with the first worm; the first worm wheel is connected to a second worm via a fourth transmission shaft; a second worm wheel meshes with the second worm on the second transmission shaft; the housing includes an upper shell and a lower shell that overlap each other, and a mounting bracket is provided at the bottom of the lower shell; the first drive motor, the second drive motor, and the battery are all disposed between the mounting bracket and the lower shell, and the mounting bracket is used to isolate the first drive motor, the second drive motor, and the battery respectively.

[0008] In one embodiment of this utility model, the first massage assembly includes an eccentric shaft and a first massage arm; the eccentric shaft is fixed on the first transmission shaft, and the axis of the eccentric shaft is parallel to and offset from the axis of the first transmission shaft; the first massage arm is provided with a rotating connection part and a first connecting hole for cooperating with the eccentric shaft; the first massage arm is sleeved on the eccentric shaft through the first connecting hole and can rotate relative to it; the rotating connection part is rotatably connected to one end of a swing rod, and the other end of the swing rod is sleeved on an eccentric wheel fixed on a second transmission shaft, thereby realizing the transmission connection between the second transmission shaft and the first massage assembly.

[0009] In one embodiment of this utility model, a second bearing is embedded in the first connecting hole, and the inner ring of the second bearing is fixedly connected to the eccentric shaft; the eccentric shaft is disposed at both ends of the first transmission shaft, and the diameter of the eccentric shaft is smaller than the diameter of the first transmission shaft, forming a stop portion for limiting and stopping the second bearing; the massage portion and the rotating connection portion of the first massage arm are disposed on both sides of the first connecting hole; the rotating connection portion is rotatably connected to the swing rod through a rotating shaft, and the installation height of the rotating shaft is not lower than the height of the first output shaft.

[0010] In one embodiment of the present invention, a plurality of third bearings are provided on the first transmission shaft; the third bearings are connected to the housing to support the first transmission shaft; the housing is provided with a limiting seat that cooperates with the third bearings.

[0011] In one embodiment of this utility model, the second massage component includes a swing wheel and a second massage arm; the swing wheel is anti-rotatingly connected to a second transmission shaft, and the swing wheel is provided with an eccentric and inclined connecting post; the second massage arm is sleeved on the connecting post through a second connecting hole and can rotate relative to the connecting post; the second massage arm is provided with a guide block, and the guide block slides with a guide groove to realize stable swing massage of the second massage arm.

[0012] In one embodiment of the present invention, the oscillating wheel includes a stop ring and a connecting post arranged at an angle to each other; an oscillating wheel cover is fixed to the end of the connecting post away from the stop ring, and the oscillating wheel cover is used to restrict the second massage arm from detaching along the axial direction of the connecting post; a rotating massage head is assembled at the end of the second massage arm away from the guide block.

[0013] In one embodiment of this utility model, the width adjustment assembly includes a third worm, a third worm wheel, a third transmission shaft, a lead screw sleeve, and a second connecting seat; the third worm is provided on the second output shaft of the second drive motor, the third worm meshes with the third worm wheel, and the third worm wheel is fixed on the third transmission shaft; a lead screw portion is formed on the third transmission shaft, the lead screw sleeve is threadedly engaged with the lead screw portion, and when the third transmission shaft rotates, it drives the lead screw sleeve to reciprocate linearly along its axial direction; the second connecting seat is sleeved on the second transmission shaft, and its bottom is provided with a... The lead screw sleeve is fitted with a lead screw sleeve receiving groove, and the lead screw sleeve and the lead screw sleeve receiving groove are mutually restrictive to prevent the lead screw sleeve from shifting or rotating relative to the second connecting seat; the deflector wheel is disposed in the receiving cavity of the second connecting seat and is mutually restrictive to the second connecting seat to realize synchronous axial movement of the second connecting seat, the lead screw sleeve and the deflector wheel; the guide groove is a first guide groove integrally formed below the receiving cavity, or a second guide groove integrally formed on the housing; the guide block is clearance-fitted with the guide groove to ensure smooth axial sliding of the second massage component, while restricting its circumferential rotation.

[0014] In one embodiment of this utility model, the cross-section of the lead screw sleeve is polygonal; the lead screw sleeve receiving groove has an opening facing the lower shell; the inner wall shape of the lead screw sleeve receiving groove is adapted to the lead screw sleeve, thereby restricting the rotation of the lead screw sleeve; limiting baffles are provided at both ends of the lead screw sleeve receiving groove to prevent the lead screw sleeve from displacing relative to the lead screw sleeve receiving groove; the third transmission shaft is connected to the housing through several connecting sleeves to prevent the lead screw sleeve from detaching from the lead screw sleeve receiving groove.

[0015] The beneficial effects of this utility model are: compact layout and high space utilization: by arranging the second drive motor below the output shaft of the first drive motor and the first transmission shaft being higher than the first output shaft, sufficient battery storage space is reserved below the first transmission shaft. At the same time, the reasonable arrangement of dual drive motors and dual transmission shafts is achieved, which greatly reduces the overall size of the mechanism and adapts to the installation needs of small massage devices (such as portable massagers and small massage cushions), solving the problem of loose structure and large space occupation of traditional massage mechanism.

[0016] Stable and reliable transmission, and efficient power transmission: The first drive motor drives the first drive shaft through a unidirectional transmission component, and at the same time links the second drive shaft through a worm gear structure, taking into account both the unidirectional rotation requirement and the consistency of dual-shaft linkage, with low transmission loss; the matching design of the pulley and transmission belt in the transmission component further optimizes space utilization while improving transmission smoothness and avoiding jamming and abnormal noise during operation.

[0017] Excellent massage effect and strong adaptability: The first massage component achieves multi-dimensional swing massage through the linkage design of the eccentric shaft and the swing rod, which conforms to the acupoint pressing needs of the human body; the second massage component can slide along the second drive shaft axis, and with the eccentric tilt design of the swing wheel, the massage width can be adjusted to suit the needs of different body types and different massage parts (such as the neck, waist and back). At the same time, the rotating massage head setting improves the massage comfort. Attached Figure Description

[0018] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this utility model and should not be regarded as a limitation of the scope. For those skilled in the art, other related drawings can be obtained from these drawings without creative effort.

[0019] Figure 1 This utility model is a structural explosion Figure 1 ;

[0020] Figure 2 This is an exploded view of the movement structure of this utility model;

[0021] Figure 3 This utility model is a structural explosion Figure 2 ;

[0022] Figure 4 This utility model is a structural explosion Figure 3 .

[0023] Explanation of reference numerals in the attached drawings: 100, housing; 101, second guide groove; 110, upper housing; 120, lower housing; 121, mounting bracket; 130, first drive motor; 1301, first output shaft; 131, first pulley; 132, first worm; 133, first worm wheel; 134, fourth transmission shaft; 135, second worm;

[0024] 200. Transmission assembly; 210. First connecting seat; 211. Second pulley; 212. First mounting groove; 220. One-way bearing; 230. First bearing; 240. Transmission belt; 241. First mating part; 242. Second mating part;

[0025] 300, First massage component; 301, First drive shaft; 310, Eccentric shaft; 311, Stop; 312, Third bearing; 313, Limiting seat; 320, First massage arm; 321, Rotary connecting part; 322, First connecting hole; 323, Massage part; 330, Second bearing;

[0026] 400. Second massage component; 401. Second drive shaft; 410. Swing wheel; 411. Stop ring; 412. Connecting post; 413. Swing wheel cover; 420. Second massage arm; 421. Second connecting hole; 422. Guide block; 423. Rotating massage head; 430. Eccentric wheel; 440. Swing rod; 441. Rotating shaft; 450. Second worm gear;

[0027] 500. Width adjustment assembly; 501. Third drive shaft; 502. Lead screw section; 510. Second drive motor; 5101. Second output shaft; 511. Third worm gear; 520. Third worm wheel; 530. Lead screw sleeve; 540. Connecting sleeve; 550. Second connecting seat; 551. Receiving cavity; 552. Lead screw sleeve receiving groove; 5521. Limiting baffle; 553. First guide groove; 554. Guide protrusion;

[0028] 600, battery. Detailed Implementation

[0029] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model. Therefore, the following detailed description of the embodiments of this utility model provided in the accompanying drawings is not intended to limit the scope of the claimed utility model, but merely to represent selected embodiments of this utility model.

[0030] In the description of this utility model, it should be noted that the terms "upper," "lower," "inner," "outer," "front end," "rear end," "both ends," "one end," and "the other end," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. In addition, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0031] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installed," "equipped with," "connected," etc., should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral 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; it can be a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0032] Example, refer to Figure 1-4 This embodiment discloses a compact massage mechanism, including a housing 100. The housing 100 includes an upper shell 110 and a lower shell 120 that overlap each other. A mounting bracket 121 is provided at the bottom of the lower shell 120. A first drive motor 130, a second drive motor 510, and a battery 600 are all disposed between the mounting bracket 121 and the lower shell 120, and the mounting bracket 121 isolates the first drive motor 130, the second drive motor 510, and the battery 600 respectively. The housing 100 houses the first drive motor 130 and the second drive motor 510. The first output shaft 1301 of the first drive motor 130 is connected to a first drive shaft 301 via a transmission assembly 200. A first massage assembly 300 is provided on the first drive shaft 301. The first output shaft 1301 is also connected to a second drive shaft 401, and a second massage assembly 400 is provided on the second drive shaft 401. The second drive motor 510 is connected to the second massage component 400 via the width adjustment component 500 to drive the second massage component 400 to move axially along the second drive shaft 401.

[0033] like Figure 3As shown, the second drive motor 510 is positioned below the first output shaft 1301 of the first drive motor 130, and the second output shaft 5101 of the second drive motor 510 is located below the horizontal plane where the first output shaft 1301 is located; the first transmission shaft 301 and the second transmission shaft 401 are arranged parallel to each other; the first transmission shaft 301 is positioned higher than the first output shaft 1301, so that there is more space below the first transmission shaft 301 for accommodating the battery 600. Here, the height of the setting position refers to... Figure 3 The Z-axis coordinates of the first drive shaft 301 and the first output shaft 1301 in the vertical coordinate system are as follows: Figure 3 The vertical direction corresponds to the Z-axis in the vertical coordinate system, with the positive direction being from bottom to top. The larger the Z-axis coordinate value, the higher the setting position. Since the first drive motor 130 is the main motor and has a large diameter, in order to ensure that it can simultaneously make different transmission connections with the first transmission shaft 301 and the second transmission shaft 401, the first output shaft 1301 needs to be set parallel to the first transmission shaft 301 and the second transmission shaft 401. This results in low space utilization of the space below the first output shaft 1301 where the first drive motor 130 is located. By optimizing the layout of the first transmission shaft 301, the first output shaft 1301, and the second output shaft 5101, the space at the bottom of the first drive motor 130 is effectively utilized for installing the second drive motor 510 and the battery 600, greatly improving space utilization. At the same time, the mounting bracket 121 is used to isolate the first drive motor 130, the second drive motor 510, and the battery 600 respectively to ensure the safety of the battery 600. In addition, the main mechanical transmission structure is located above the battery 600, which facilitates later maintenance and heat dissipation and avoids the battery being affected by mechanical vibration.

[0034] In one embodiment, the second drive shaft 401 is positioned higher than the first drive shaft 301. This reduces the space encroached upon by the rotating connection 321 below the first drive shaft 301, allowing the swing arm 440 to better transmit force to the rotating connection 321 and ensuring a reasonable angle between the swing arm 440 and the rotating connection 321. Raising the height of the second drive shaft 401 does not significantly increase space occupancy. This is because the first worm gear 133, the fourth drive shaft 134, and the second worm 135 are vertically connected and arranged. The second drive shaft 401 is raised due to the assembly relationship, which also reduces the lateral distance between the first drive shaft 301 and the second drive shaft 401 (the vertical arrangement of the first worm gear 133, the fourth drive shaft 134, and the second worm 135 reduces lateral space occupancy). Furthermore, the second massage arm 420 itself requires space in the height direction, so raising the mounting position of the second drive shaft 401 does not waste height space.

[0035] In one embodiment, the battery 600 includes two cylindrical cells arranged side by side; the length direction of the battery 600 is parallel to the axial direction of the first drive shaft 301. This design effectively ensures battery capacity while improving space utilization. It is understood that batteries in the art typically use two cylindrical cells, but these two cells are arranged side by side. The overall length is the same as that of a single cylindrical cell, but the width is significantly increased. This usually requires occupying a relatively central position in the casing, which greatly affects the installation of the internal structure of the mechanism and cannot make good use of the space on both sides of the casing 100. With the structure of this utility model, the length of the battery 600 is lengthened and the cross-sectional area is reduced, which can effectively utilize the lateral space of the casing 100. After the cross-sectional area is reduced, the battery 600 can be accommodated to the maximum extent by making room for the first drive shaft 301 and the bottom space of the first output shaft 1301 of the first drive motor 130, so that the bottom of the battery 600 and the bottom of the first drive motor 130 are basically on the same horizontal plane, maximizing space utilization.

[0036] In one embodiment of this utility model, the transmission assembly 200 includes a first pulley 131 sleeved on a first output shaft 1301. The first pulley 131 is connected to a second pulley 211 via a transmission belt 240. The second pulley 211 is formed on a first connecting seat 210. The first connecting seat 210 is connected to a first transmission shaft 301 via a first bearing 230 and a one-way bearing 220. The inner rings of the first bearing 230 and the one-way bearing 220 are fixedly connected to the first transmission shaft 301, while their outer rings are fixedly connected to the first connecting seat 210. Specifically, the first connecting seat 210 has a first mounting groove 212 for accommodating the first bearing 230 and the one-way bearing 220. The first bearing 230 is located inside the second pulley 211, and the one-way bearing 220 is located on the side of the first bearing 230 away from the second pulley 211. When the first drive motor 130 drives the second pulley 211 to rotate forward, the one-way bearing 220 rotates freely, and the first connecting seat 210 cannot drive the first drive shaft 301 to rotate; when the second pulley 211 rotates in reverse, the one-way bearing 220 locks, and the first connecting seat 210 can drive the first drive shaft 301 to rotate synchronously.

[0037] like Figure 3 As shown, the transmission belt 240 forms a first mating part 241 with the bottom of the first pulley 131; the transmission belt 240 forms a second mating part 242 with the bottom of the second pulley 211; the setting position of the second mating part 242 is not lower than the setting position of the first mating part 241; thereby reducing the space occupied by the second pulley 211 below the first output shaft 1301, the battery 600 has more installation space, and the battery 600 can adopt two cylindrical cells connected end to end, making reasonable use of the internal space of the lower shell 120.

[0038] In one embodiment of this utility model, the first output shaft 1301 further includes a first worm gear 132, which meshes with a first worm wheel 133. The first worm wheel 133 is fixedly sleeved on a fourth transmission shaft 134, and the other end of the fourth transmission shaft 134 is provided with a second worm gear 135. The second worm gear 135 meshes with a second worm wheel 450, which is fixedly sleeved on the second transmission shaft 401. Through the transmission cooperation of the first worm gear 132, the first worm wheel 133, the fourth transmission shaft 134, the second worm gear 135, and the second worm wheel 450, the power of the first drive motor 130 can be transmitted to the second transmission shaft 401, driving the second transmission shaft 401 to rotate. It should be noted that the first worm gear 132 can be integrally formed with the first output shaft 1301, or it can be a worm gear sleeve sleeved on the first output shaft 1301.

[0039] In one embodiment of this utility model, the first massage component 300 includes an eccentric shaft 310, which is disposed at both ends of a first transmission shaft 301, with its axis parallel to but not coinciding with the axis of the first transmission shaft 301. A first massage arm 320 is rotatably connected to the eccentric shaft 310 via a second bearing 330. The inner ring of the second bearing 330 is fixedly connected to the eccentric shaft 310, and the outer ring is fixedly connected to a first connecting hole 322 on the first massage arm 320. The diameter of the eccentric shaft 310 is smaller than the diameter of the first transmission shaft 301, thereby forming a stop portion 311 at the connection point of the two for stopping the second bearing 330. The first massage arm 320 includes a massage portion 323 and a rotatable connecting portion 321 respectively disposed on both sides of the first connecting hole 322. The massage portion 323 is used to contact the human body to realize the massage function. The rotating connection 321 is rotatably connected to one end of the swing rod 440 via a rotating shaft 441. The other end of the swing rod 440 is sleeved on the eccentric wheel 430 fixed on the second drive shaft 401. The rotating shaft 441 is positioned no lower than the first output shaft 1301 to avoid encroaching on the space below the first drive shaft 301, thus reserving sufficient space for the installation of the battery 600. A third bearing 312 is also sleeved on the first drive shaft 301. The outer ring of the third bearing 312 is fixedly connected to the limiting seat 313 provided on the housing 100 to support and limit the first drive shaft 301.

[0040] In one embodiment of this utility model, the second massage assembly 400 includes a sway wheel 410, which is anti-rotationally connected to the second drive shaft 401. The sway wheel 410 includes a stop ring 411 and a connecting post 412 arranged at an angle. The connecting post 412 is eccentrically and inclinedly connected to the second drive shaft 401. A second massage arm 420 is sleeved on the connecting post 412, and the second massage arm 420 is rotatably connected to the connecting post 412 through a second connecting hole 421. A sway wheel cap 413 is fixedly connected to the end of the connecting post 412 away from the stop ring 411 to prevent the second massage arm 420 from detaching from the connecting post 412. The second massage arm 420 is provided with a guide block 422, which cooperates with a guide groove. The guide groove can be a first guide groove 553 formed below the receiving cavity 551 of the second connecting seat 550, or a second guide groove 101 formed on the housing 100. When the guide block 422 engages with the first guide groove 553, the bottom of the first guide groove 553 is usually closed, thus forming a relatively complete guide space. Correspondingly, the first guide groove 553 will form a raised guide protrusion 554 on the outside of the second connecting seat 550. Since the second connecting seat 550 also moves along the axial direction of the second drive shaft 401, the housing 100 is also provided with a second guide groove 101, which engages with the guide protrusion 554. When the bottom of the first guide groove 553 is hollow, the guide block 422 directly... The bottom of the second connecting seat 550 directly engages with the second guide groove 101. That is, the bottom of the second connecting seat 550 does not need to be provided with the first guide groove 553, but can be set as a hollow structure, which can also achieve the guiding function of the guide block 422. In one embodiment, the guide block 422 can be set as a ball head or a cylindrical structure, both of which can move smoothly in the guide groove. A rotating massage head 423 is provided on the side of the second massage arm 420 away from the guide block 422. The rotating massage head 423 can rotate and knead with the movement of the second massage arm 420.

[0041] In one embodiment of this utility model, the width adjustment component 500 includes a second drive motor 510. A third worm gear 511 is provided on the second output shaft 5101 of the second drive motor 510. The third worm gear 511 meshes with a third worm wheel 520, which is fixedly sleeved on the third transmission shaft 501. A lead screw portion 502 is formed on the third transmission shaft 501, and a lead screw sleeve 530 is fitted on the lead screw portion 502. The linear reciprocating motion of the lead screw sleeve 530 can be realized by the rotation of the lead screw portion 502 on the third transmission shaft 501. The lead screw sleeve 530 is limited to a second connecting seat 550, which is sleeved on the second transmission shaft 401. A yaw wheel 410 is disposed in the receiving cavity 551 of the second connecting seat 550 and is limited to the second connecting seat 550, so that the yaw wheel 410 can move synchronously along the axial direction of the second transmission shaft 401 with the second connecting seat 550 and the lead screw sleeve 530. The bottom of the second connecting seat 550 is provided with a lead screw sleeve receiving groove 552. The lead screw sleeve 530 is limited to the lead screw sleeve receiving groove 552 to prevent the lead screw sleeve 530 from shifting or rotating relative to the lead screw sleeve receiving groove 552. Preferably, the cross-section of the lead screw sleeve 530 is hexagonal, and the lead screw sleeve 530 is shaped like a hexagonal nut. The lead screw sleeve receiving groove 552 has an opening facing the lower housing 120. The inner wall shape of the lead screw sleeve receiving groove 552 is adapted to the lead screw sleeve 530, thereby restricting the rotation of the lead screw sleeve 530. Limiting baffles 5521 are also provided at both ends of the lead screw sleeve receiving groove 552 to prevent the lead screw sleeve 530 from displacing relative to the lead screw sleeve receiving groove 552. Since the lead screw sleeve receiving groove 552 has an open opening, the lead screw sleeve 530 can be easily inserted into it, simplifying the installation. The third drive shaft 501 is fixedly connected to the mounting bracket 121 through several connecting sleeves 540, which can prevent the lead screw sleeve 530 from coming out of the lead screw sleeve receiving groove 552.

[0042] The working principle of this embodiment is as follows:

[0043] When the first drive motor 130 starts and drives the first output shaft 1301 to rotate forward, the first pulley 131 drives the second pulley 211 to rotate forward via the transmission belt 240. At this time, the one-way bearing 220 rotates freely, and the first connecting seat 210 cannot drive the first transmission shaft 301 to rotate, so the tapping function of the first massage component 300 is not activated. At the same time, the first worm gear 132 drives the first worm wheel 133 to rotate, which drives the second worm wheel 450 to rotate via the fourth transmission shaft 134 and the second worm gear 135, thereby driving the second transmission shaft 401 to rotate. The eccentric wheel 430 on the second transmission shaft 401 rotates eccentrically, driving the swing arm 440 to move. The swing arm 441 drives the first massage arm 320 to reciprocate around the eccentric shaft 310 via the rotating shaft 441, realizing the pinching and kneading action. At the same time, the second drive shaft 401 drives the eccentric wheel 410 to rotate. Due to the eccentric tilt of the connecting column 412 and the cooperation between the guide block 422 and the guide groove, the second massage arm 420 produces an eccentric pinching and kneading action. At this time, the first massage arm 320 and the second massage arm 420 work at the same time to realize the double pinching and kneading working mode.

[0044] Based on the dual-clamping kneading working mode, the second drive motor 510 is started, the second output shaft 5101 drives the third worm gear 511 to rotate, the third worm gear 511 drives the third worm wheel 520 and the third transmission shaft 501 to rotate, the lead screw part 502 drives the lead screw sleeve 530 to move linearly, and the lead screw sleeve 530 drives the second connecting seat 550 and the swing wheel 410 to reciprocate along the second transmission shaft 401 axially, so that the second massage component 400 moves continuously while performing swinging clamping kneading, increasing the working distance and range, and realizing the dual-clamping kneading working mode.

[0045] When the first drive motor 130 drives the first output shaft 1301 to reverse, the first pulley 131 drives the second pulley 211 to reverse via the transmission belt 240. At this time, the one-way bearing 220 locks, and the first connecting seat 210 drives the first transmission shaft 301 to reverse synchronously. The eccentric shaft 310 on the first transmission shaft 301 rotates eccentrically, causing the first massage arm 320 to produce a striking action. At the same time, the second transmission shaft 401, driven by the first drive motor 130, still drives the eccentric wheel 430 to rotate, causing the first massage arm 320 to perform a hammering action while reciprocating and kneading. The second massage component 400 continues to perform oscillating and kneading actions, thereby realizing the double-kneading and hammering working mode.

[0046] Based on the double-clamping and hammering working mode, the second drive motor 510 is started, and the second massage component 400 is driven to reciprocate along the second transmission shaft 401 through the width adjustment component 500, so as to realize the double-clamping and hammering working mode in which the second massage component 400 clamps and kneads with distance adjustment, while the first massage component 300 clamps and kneads with hammering.

[0047] This embodiment optimizes the layout of the drive shafts and motors, placing the second drive motor 510 and battery 600 at the bottom of the first drive motor 130, making full use of the internal space of the housing 100 and resulting in a more compact overall structure. Simultaneously, the use of a one-way bearing 220 enables switching between multiple operating modes, enhancing the functionality and user experience of the massage mechanism.

[0048] The above description is merely an embodiment of this utility model and does not limit the patent scope of this utility model. Any equivalent modifications made based on the content of this utility model specification and drawings, or direct or indirect applications in related technical fields, are similarly included within the patent protection scope of this utility model.

Claims

1. A compact structure massage movement, characterized in that: The application relates to a massage device, which comprises a shell (100), a first driving motor (130), a second driving motor (510), a first transmission shaft (301) and a second transmission shaft (401) arranged in the shell (100); the first transmission shaft (301) and the second transmission shaft (401) are arranged in parallel, the mounting height of the first transmission shaft (301) is higher than that of a first output shaft (1301) of the first driving motor (130), so as to form a reserved space for accommodating a battery (600) below the first transmission shaft (301); the second transmission shaft (401) is arranged higher than the first transmission shaft (301); the first driving motor (130) is connected with the first transmission shaft (301) in one-way transmission through a transmission assembly (200) to drive the first transmission shaft (301) to rotate in one direction; a plurality of first massage assemblies (300) are arranged on the first transmission shaft (301); the first driving motor (130) is connected with the second transmission shaft (401) in transmission; the second transmission shaft (401) is connected with the first massage assembly (300) in transmission; a plurality of second massage assemblies (400) which can slide along the axial direction of the second transmission shaft (401) are arranged on the second transmission shaft (401); the second driving motor (510) is connected with the second massage assembly (400) in transmission through a width adjusting assembly (500) to drive the second massage assembly (400) to reciprocate along the axial direction of the second transmission shaft (401); the second driving motor (510) is arranged below the first output shaft (1301), and a second output shaft (5101) of the second driving motor (510) is arranged below the horizontal plane where the first output shaft (1301) is located, so that the two driving motors are arranged compactly.

2. A compact structure massage movement according to claim 1, characterized in that: The transmission assembly (200) comprises a first connecting seat (210), a first bearing (230) and a one-way bearing (220) are coaxially arranged in the first connecting seat (210), the inner rings of the first bearing (230) and the one-way bearing (220) are connected with the first transmission shaft (301), a second belt pulley (211) is integrally formed on the outer side of the first connecting seat (210), a first belt pulley (131) is fixed on the first output shaft (1301) of the first driving motor (130), the first belt pulley (131) and the second belt pulley (211) are connected in transmission through a transmission belt (240), the transmission belt (240) forms a first matching part (241) with the bottom of the first belt pulley (131) and a second matching part (242) with the bottom of the second belt pulley (211), the height of the second matching part (242) is not lower than that of the first matching part (241), the battery (600) comprises two cylindrical battery cells arranged side by side, the length direction of the battery (600) is parallel to the axial direction of the first transmission shaft (301).

3. A compact structure massage movement according to claim 1, characterized in that: The first output shaft (1301) of the first driving motor (130) comprises a first worm (132); the first worm (132) is engaged with a first worm gear (133); the first worm gear (133) is connected with a second worm (135) through a fourth transmission shaft (134); the second transmission shaft (401) is provided with a second worm gear (450) engaged with the second worm (135); the shell (100) comprises an upper shell (110) and a lower shell (120) which are covered with each other, and the bottom of the lower shell (120) is provided with a mounting bracket (121); the first driving motor (130), the second driving motor (510) and the battery (600) are all arranged between the mounting bracket (121) and the lower shell (120), and are respectively isolated by the mounting bracket (121).

4. A compact structure massage movement according to claim 1, characterized in that: The first massage assembly (300) comprises an eccentric shaft (310) and a first massage arm (320); the eccentric shaft (310) is fixed on the first transmission shaft (301), and the axis of the eccentric shaft (310) is parallel to and misaligned with the axis of the first transmission shaft (301); the first massage arm (320) is provided with a rotating connection part (321) and a first connecting hole (322) for cooperating with the eccentric shaft (310); the first massage arm (320) is sleeved on the eccentric shaft (310) through the first connecting hole (322) and can rotate relative to the eccentric shaft (310); The rotating connection part (321) is rotatably connected with one end of the swing rod (440), and the other end of the swing rod (440) is sleeved on the eccentric wheel (430) fixed on the second transmission shaft (401), so as to realize the transmission connection between the second transmission shaft (401) and the first massage assembly (300).

5. A compact structure massage movement according to claim 4, characterized in that: The second bearing (330) is embedded in the first connecting hole (322), the inner ring of the second bearing (330) is fixedly connected with the eccentric shaft (310); the eccentric shaft (310) is arranged at both ends of the first transmission shaft (301), and the diameter of the eccentric shaft (310) is smaller than the diameter of the first transmission shaft (301), so as to form a stop part (311) for limiting and stopping the second bearing (330); the massage part (323) of the first massage arm (320) and the rotating connection part (321) are arranged on both sides of the first connecting hole (322); the rotating connection part (321) is rotatably connected with the swing rod (440) through the rotating shaft (441), and the installation height of the rotating shaft (441) is not lower than the height of the first output shaft (1301).

6. A compact structure massage movement according to claim 4, characterized in that: The first transmission shaft (301) is provided with a plurality of third bearings (312); the third bearings (312) are connected with the shell (100) to support the first transmission shaft (301); the shell (100) is provided with a limiting seat (313) matched with the third bearings (312).

7. A compact structure massage movement as claimed in claim 1 wherein: The second massage assembly (400) comprises a swing wheel (410) and a second massage arm (420); the swing wheel (410) is rotationally connected with a second transmission shaft (401), and an eccentric and inclined connecting column (412) is arranged on the swing wheel (410); the second massage arm (420) is sleeved on the connecting column (412) through a second connecting hole (421) and can rotate relative to the connecting column (412); a guide block (422) is arranged on the second massage arm (420), and the guide block (422) is in sliding fit with a guide groove, so that stable swing massage of the second massage arm (420) is realized.

8. A compact structure massage movement according to claim 7, characterized in that: The swing wheel (410) comprises a stop ring (411) and the connecting column (412) which are arranged at an angle with each other; a swing wheel gland (413) is fixed to one end of the connecting column (412) away from the stop ring (411), and the swing wheel gland (413) is used for limiting the second massage arm (420) from being separated from the connecting column (412) in the axial direction; a rotating massage head (423) is assembled to one end of the second massage arm (420) away from the guide block (422).

9. A compact structure massage movement as claimed in claim 7, wherein: The width adjusting assembly (500) comprises a third worm (511), a third worm wheel (520), a third transmission shaft (501), a screw rod sleeve (530) and a second connecting seat (550); a third worm (511) is arranged on a second output shaft (5101) of the second drive motor (510), the third worm (511) is in mesh with the third worm wheel (520), and the third worm wheel (520) is fixed on the third transmission shaft (501); a screw rod part (502) is formed on the third transmission shaft (501), the screw rod sleeve (530) is in threaded fit with the screw rod part (502), and the third transmission shaft (501) drives the screw rod sleeve (530) to move linearly along the axial direction when the third transmission shaft (501) rotates; the second connecting seat (550) is sleeved on the second transmission shaft (401), and a screw rod sleeve containing groove (552) which is matched with the screw rod sleeve (530) is arranged at the bottom of the second connecting seat (550); the screw rod sleeve (530) is in limiting fit with the screw rod sleeve containing groove (552), so that displacement or rotation of the screw rod sleeve (530) relative to the second connecting seat (550) is prevented; the swing wheel (410) is arranged in a containing cavity (551) of the second connecting seat (550) and is in limiting fit with the second connecting seat (550), so that synchronous axial movement of the second connecting seat (550), the screw rod sleeve (530) and the swing wheel (410) is realized; the guide groove is a first guide groove (553) which is integrally formed below the containing cavity (551), or a second guide groove (101) which is integrally formed on the shell (100); the guide block (422) is in clearance fit with the guide groove, so that axial sliding of the second massage assembly (400) is smooth, and meanwhile, circumferential rotation of the second massage assembly (400) is limited.

10. A compact structure massage movement as claimed in claim 9, characterized in that: The cross section of the screw sleeve (530) is polygonal; the screw sleeve accommodating groove (552) has an opening facing the lower shell (120); the inner wall shape of the screw sleeve accommodating groove (552) is matched with the screw sleeve (530), thereby limiting the rotation of the screw sleeve (530); the two ends of the screw sleeve accommodating groove (552) are provided with limiting baffles (5521) to avoid displacement of the screw sleeve (530) relative to the screw sleeve accommodating groove (552); the third transmission shaft (501) is connected with the shell (100) through a plurality of connecting sleeves (540) to avoid the screw sleeve (530) from being separated from the screw sleeve accommodating groove (552).

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