A top rod type shoulder and back massager

Abstract

The utility model discloses a top rod type shoulder and back massaging machine core, including machine core casing, drive motor, first transmission mechanism, second transmission mechanism, two eccentric mechanism, shoulder massage mechanism and back beating mechanism. Drive motor drives first transmission mechanism and drives kneading axle rotation, and drives second transmission mechanism and drives beating axle one -way rotation, and eccentric mechanism is fixed in the both ends of kneading axle, has kneading eccentric wheel and the inclination of setting eccentric wheel, and the kneading swing arm sleeve of shoulder massage mechanism is established on eccentric wheel, and bottom end limit rod cooperates with machine core casing limit groove, and the beating eccentric wheel sleeve of back beating mechanism is established in beating axle both ends, is connected through connecting rod and massage top rod, and massage top rod bottom end sleeve is established on kneading eccentric wheel. The utility model integrates kneading and beating action in the same machine core, and realizes the independent switching of kneading and beating mode through single motor bidirectional drive, and the structure is compact, and the massaging effect is good.

Description

Technical Field

[0001] This utility model relates to the technical field of massagers, and in particular to a top rod type shoulder and back massage mechanism. Background Technology

[0002] In modern society, people often suffer from shoulder and back pain due to prolonged sitting at work in offices, classrooms, dormitories, or homes, or looking down at their phones for extended periods.

[0003] Most existing vibrating massage devices are handheld. To use them, the user holds the device and aligns the massage head with the area to be massaged. A motor or electromagnet then drives the massage head to strike the area, providing a massage effect. This type of massage device is inconvenient to use, requiring the user to hold it in their hand. Especially for back massages, the device must be placed firmly against a chair back or bed, limiting its usability and affecting the massage effect.

[0004] Most existing shawl-style kneading massagers are designed for the neck and shoulders, while those that knead the shoulders and back or provide back massage are relatively rare. This makes it difficult to meet users' massage needs.

[0005] In view of this, this utility model was developed by deeply conceiving and actively researching and improving the design of existing shoulder and back massagers to address the many shortcomings and inconveniences caused by the imperfect massage structure design. Utility Model Content

[0006] The purpose of this invention is to overcome the shortcomings of the prior art and provide a top rod type shoulder and back massage mechanism that can massage the shoulders and back and has a good massage effect.

[0007] To achieve the above objectives, the solution of this utility model is: A top rod type shoulder and back massage mechanism includes: a mechanism housing, a drive motor, a first transmission mechanism, a second transmission mechanism, two eccentric swing wheels, a shoulder massage mechanism, and a back percussion mechanism; The drive motor is located inside the mechanism housing; The first transmission mechanism has a kneading shaft, and the first transmission mechanism is connected to a drive motor to drive the kneading shaft to rotate. The second transmission mechanism has a hammering shaft, and a one-way limit mechanism is provided on the hammering shaft. The second transmission mechanism is connected to a drive motor to drive the hammering shaft to rotate in one direction. Two eccentric mechanisms are symmetrically fixed at both ends of the kneading shaft. The two eccentric mechanisms include kneading eccentric wheels arranged opposite each other and eccentric wheels arranged in opposite directions. The eccentric wheels are inclined relative to the kneading eccentric wheels to form an eccentric inclined surface. The shoulder massage mechanism includes two kneading arms and two kneading massage heads. The two kneading arms are correspondingly mounted on two eccentric wheels. The kneading massage heads are installed at the top of the kneading arms, and a limiting rod is provided at the bottom of the kneading arms. The mechanism housing is provided with a limiting groove for the limiting rod to move. The back percussion mechanism includes two massage rods, two percussion eccentric wheels, and two connecting rods. The two percussion eccentric wheels are symmetrically mounted on both ends of the percussion shaft. The outer ends of the two percussion eccentric wheels are connected to one end of the two connecting rods. The other ends of the two connecting rods are rotatably connected to the bottom middle part of the massage rods. The bottom ends of the two massage rods are mounted on the kneading eccentric wheels of the swing mechanism. The top ends of the two massage rods are equipped with back massage heads.

[0008] Furthermore, the first transmission mechanism includes a first worm gear connected to a drive motor, a first worm wheel meshing with the first worm gear, a second worm gear fixedly connected to the first worm wheel, and a second worm wheel meshing with the second worm gear. The second worm wheel is fixedly connected to the kneading shaft. The first worm gear has a first helical tooth, and the second worm gear has a second helical tooth. The first transmission mechanism adopts a two-stage worm gear reduction transmission, transmitting power sequentially through the first worm gear, the first worm wheel, the second worm gear, and the second worm wheel. It has a large transmission ratio, a compact structure, and the worm gear meshing has self-locking properties, making the kneading action smooth and reliable.

[0009] Furthermore, the second transmission mechanism includes a drive wheel sleeved on the first worm gear, a driven wheel spaced at a corresponding interval from the drive wheel, and a belt connecting the drive wheel and the driven wheel. The pounding shaft passes through the center of the driven wheel, and the one-way limiting mechanism connects the pounding shaft and the driven wheel, controlling the unidirectional rotation of the pounding shaft. The second transmission mechanism uses a drive wheel, driven wheel, and belt drive, with the pounding shaft passing through the center of the driven wheel, achieving a parallel and spaced arrangement of the pounding shaft and the kneading shaft. This ensures smooth power transmission and facilitates the installation and arrangement of the one-way limiting mechanism.

[0010] Furthermore, when the kneading massage head rotates to its furthest position away from the back massage head, the back massage head moves to its bottom. At this time, the distance D1 between the kneading massage head and the back massage head is at its maximum, and the kneading massage head and the back massage head are in a relaxed state. When the kneading massage head rotates closer to the back massage head, the back massage head moves to its top. At this time, the distance D between the kneading massage head and the back massage head is at its minimum, and the kneading massage head and the back massage head are in a clamped state. The range of motion between the kneading massage head and the back massage head is 10mm ≤ D ≤ 70mm. The range of motion of the distance D2 between the left and right kneading massage heads is 50-150mm.

[0011] Furthermore, the oscillation mechanism includes a connecting shaft connecting the kneading eccentric wheel and the oscillation wheel. One end face of the connecting shaft connected to the kneading eccentric wheel is a vertical surface, and the other end face connected to the oscillation wheel is an inclined surface. The outer diameter of the connecting shaft is larger than both the kneading eccentric wheel and the oscillation wheel. Both end faces form abutment surfaces for mounting the kneading swing arm and the massage rod. The connecting shaft of the oscillation mechanism provides axial positioning for both the kneading swing arm and the massage rod, ensuring stable inclination angles between the oscillation wheel and the kneading eccentric wheel and high transmission accuracy.

[0012] Furthermore, the core housing includes a lower shell, an upper cover, and a mounting base and an inner cover disposed between the lower shell and the upper cover. The mounting base and the inner cover have parallel and spaced upper and lower shaft holes. The kneading shaft is disposed on the upper shaft hole, and the percussion shaft is disposed on the lower shaft hole via a percussion bearing. A motor mount is provided inside the mounting base, and the drive motor is locked onto the motor mount. A battery slot is provided on one side of the bottom of the mounting base. Through the upper and lower shaft holes of the mounting base, the kneading shaft and the percussion shaft are arranged in layers, ensuring that the massage positions of the shoulder massage head and the back massage head are in the appropriate positions. The motor mount and the battery slot are integrated into the mounting base, effectively compressing the core volume, facilitating the assembly and maintenance of the transmission components, reducing operating noise, and improving massage comfort.

[0013] Furthermore, the top of the kneading arm is provided with a front massage seat and a rear massage seat that are staggered vertically and horizontally, and kneading massage heads are respectively installed on the front massage seat and the rear massage seat; the outer end of the kneading arm is limited on the deflecting wheel by a baffle. The front and rear design of the kneading massage head can increase the shoulder massage coverage area, prevent the kneading arm from moving axially, and improve massage comfort and operational reliability.

[0014] Furthermore, the bottom of the end of the massage rod near the kneading shaft is provided with a connecting rod movable groove. Through-hole shaft holes are provided on both the left and right sides of the connecting rod movable groove. One end of the connecting rod is set in the connecting rod movable groove, and the connecting rod is rotatably set in the groove through the cooperation of a pin and the shaft hole. The design of the connecting rod movable groove provides sufficient swing space for the connecting rod, avoids motion interference, and ensures smooth hammering action.

[0015] Furthermore, hammering bearings are fitted at both ends of the hammering shaft and installed inside the core housing. The other end of the connecting rod is fitted onto the hammering eccentric wheel through a connecting rod bearing, thereby reducing friction loss and smoothly converting the eccentric rotation into reciprocating push-pull motion, improving hammering efficiency and transmission stability.

[0016] Furthermore, the one-way limiting mechanism is a one-way bearing, which is sleeved on the center of the driven wheel. Controlling the unidirectional rotation of the hammering shaft using a one-way bearing is a simple and reliable structure. The rotation and stopping of the hammering shaft can be controlled by rotating the drive motor, enabling rapid switching between kneading and hammering modes.

[0017] Furthermore, the mounting base is provided with a mounting guide post on one side corresponding to the first worm gear. The first worm wheel and the second worm gear are integrally formed and are centrally sleeved on the mounting guide post. A circuit board is also provided inside the mechanism housing, and the circuit board is installed between the inner cover and the upper cover.

[0018] Compared with existing technologies, the advantages of this utility model's top-rod type shoulder and back massage mechanism are as follows: It integrates the shoulder kneading mechanism and the back percussion mechanism into the same housing, allowing switching between kneading and percussion modes via the forward and reverse rotation of the drive motor. During forward rotation, the first transmission mechanism drives the kneading shaft to rotate for shoulder kneading, while the second transmission mechanism simultaneously drives the percussion shaft to rotate unidirectionally for back percussion. During reverse rotation, a unidirectional limiting mechanism restricts the percussion shaft's rotation, retaining only the kneading action. The inclined surface formed by the tilting wheel, in conjunction with the limiting rod and limiting groove, allows the kneading arm to perform periodic reciprocating oscillations along a fixed trajectory, avoiding excessively large angle swings. The bottom end of the massage top rod is sleeved on the kneading eccentric wheel, and the middle is connected to the percussion eccentric wheel by a connecting rod, converting rotational motion into up-and-down motion to achieve top-rod percussion. This utility model's massage mechanism has a compact structure and high transmission efficiency, capable of providing shoulder and back kneading and back percussion massage simultaneously or independently, improving massage comfort and user experience. Attached Figure Description

[0019] Figure 1 This is an exploded view of the top rod type massage mechanism of this utility model.

[0020] Figure 2 This is a schematic diagram of the combined appearance of the massage mechanism of this utility model.

[0021] Figure 3 This is a partial exploded view of the massage mechanism of this utility model.

[0022] Figure 4 This is a schematic diagram of the drive motor, the first transmission mechanism, and the second transmission mechanism of this utility model.

[0023] Figure 5 This is a schematic diagram of the structure of the present invention with the core housing removed.

[0024] Figure 6 This is a side sectional view of the present invention.

[0025] Figure 7 This is an exploded view of the housing of the mechanism of this utility model.

[0026] Figure 8 This is a partial structural schematic diagram of the present invention.

[0027] Label Explanation: 1. Mechanism housing; 1A. Lower housing; 1B. Upper cover; 1C. Mounting base; 1D. Inner cover; 1E. Upper shaft hole; 1F. Lower shaft hole; 1G. Battery slot; 11. Limiting groove; 2. Drive motor; 21. First worm gear; 211. First helical gear; 22. Motor mount; 3. First transmission mechanism; 31. Kneading shaft; 32. First worm gear; 33. Second worm; 331. Second helical gear; 34. Second worm gear; 35. Mounting guide post; 4. Second transmission mechanism; 41. Hammering shaft; 42. Drive wheel; 43. Driven wheel; 44. Belt; 45. One-way limit mechanism; 5. Oscillating mechanism; 51. Kneading eccentric wheel; 52. Oscillating wheel; 53. Connecting shaft; 54. Oscillating inclined plane; 55. Baffle plate; 56. Eccentric cover plate; 6. Shoulder massage mechanism; 61. Kneading and swinging arm; 611. Limiting rod; 612. Front massage seat; 613. Rear massage seat; 62. Kneading massage head; 71. Massage top rod; 711. Back massage head; 712. Connecting rod movable groove; 713. Shaft hole; 72. Hammering eccentric wheel; 73. Connecting rod; 74. Hammering bearing; 75. Pin; 76. Connecting rod bearing; 77. Washer; 8. Battery; 9. Circuit board. Detailed Implementation

[0028] To further explain the technical solution of this utility model, the following detailed description is provided through specific embodiments.

[0029] In the description of this utility model, it should be understood that the terms "center," "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating orientation or positional relationships, are based on the orientation or positional relationships shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. In the description of this utility model, unless otherwise stated, "a plurality of" means two or more.

[0030] like Figures 1 to 8 As shown, this utility model discloses a top rod type shoulder and back massage mechanism, which includes a mechanism housing 1, a drive motor 2, a first transmission mechanism 3 with a kneading shaft 31, a second transmission mechanism 4 with a pounding shaft 41, a swing mechanism 5, a shoulder massage mechanism 6, and a back pounding mechanism.

[0031] The drive motor 2, the first transmission mechanism 3, and the second transmission mechanism 4 are all located inside the core housing 1. The drive motor 2 is connected to the first transmission mechanism 3 and the second transmission mechanism 4. The first transmission mechanism 3 drives the kneading shaft 31 to rotate. The second transmission mechanism 4 is provided with a one-way limiting mechanism 45 that restricts the one-way rotation of the pounding shaft 41. The second transmission mechanism 4 drives the pounding shaft 41 to rotate. The swaying mechanism 5 is symmetrically arranged on the kneading shaft 31 of the first transmission mechanism 3. Each swaying mechanism 5 has a kneading eccentric wheel 51 and a swaying wheel 52. The swaying wheel 52 and the kneading eccentric wheel 51 are inclined to form a swaying inclined surface 54. The kneading eccentric wheel 51 is provided at the inner end of the two swaying mechanisms 5, and the swaying wheel 52 is provided at the outer end.

[0032] The shoulder massage mechanism 6 includes two kneading arms 61 and a kneading massage head 62. The kneading arms 61 are sleeved on the eccentric wheel 52. The kneading massage head 62 is installed at the top of the kneading arms 61. A limiting rod 611 is provided at the bottom of the kneading arms 61. A limiting groove 11 for the limiting rod 611 to move is provided on the core housing 1.

[0033] The back-pounding mechanism includes two massage rods 71, two eccentric hammering wheels 72, and two connecting rods 73. The two eccentric hammering wheels 72 are symmetrically mounted on both ends of the hammering shaft 41. The two ends of the hammering shaft 41 are fitted with hammering bearings 74. The outer ends of the two eccentric hammering wheels 72 are connected to one end of the two connecting rods 73. The other ends of the two connecting rods 73 are rotatably connected to the bottom middle part of the massage rods 71. The bottom ends of the two massage rods 71 ​​are mounted on the kneading eccentric wheel 51 of the oscillating mechanism 5. The top ends of the two massage rods 71 ​​are equipped with back massage heads 711.

[0034] When this novel top-rod type shoulder and back massage mechanism is in operation, the drive motor 2 rotates forward, driving the first kneading shaft 31 of the first transmission mechanism 3 to rotate. The kneading shaft 31 drives the two oscillating mechanisms 5 to rotate. The oscillating inclined surface 54 of the oscillating wheel 52 applies a circumferential thrust and a radial component force to the end of the kneading arm 61. The limiting rod 611 at the bottom of the kneading arm 61 limits the movement angle of the kneading arm 61, so that the kneading arm 61 uses the sleeve of the oscillating mechanism 5 as a fulcrum to make a small-amplitude, fixed-track periodic reciprocating swing, without producing excessively large-angle swings. At the same time as the oscillating mechanism 5 rotates, the massage top rod 71 sleeved on the oscillating mechanism 5, under the joint constraint of the rotational driving force of the kneading eccentric wheel 51 and the connecting rod 73, converts the rotational motion into up-and-down motion, so that the back massage head 711 on the massage top rod 71 cooperates with the kneading massage head 62 to achieve a shoulder and back clamping and relaxing massage effect.

[0035] Meanwhile, the second transmission mechanism 4, constrained by the one-way limiting mechanism, controls the percussion shaft 41 to rotate only in one direction. When the percussion shaft 41 rotates, it drives the percussion eccentric wheels 72 at both ends of the percussion shaft 41 to rotate, which in turn drives the connecting rod 73 to move back and forth. This, in turn, acts on the back massage head 711 on the massage top rod 71, realizing shoulder kneading massage and back percussion massage. The shoulders and back work together to achieve a clamping and relaxing massage action, improving the massage effect. When the drive motor 2 drives the drive wheel 42 to rotate in the opposite direction, the percussion shaft 41 is limited by the one-way limiting mechanism and cannot rotate, that is, it cannot perform percussion massage. At this time, it only has the kneading action and clamping and relaxing massage effect, without the percussion action.

[0036] In this embodiment, the mechanism housing 1 includes a lower shell 1A and an upper cover 1B. The lower shell 1A and the upper cover 1B are provided with a mounting base 1C and an inner cover 1D that fits on the mounting base 1C. The top end of the mounting base 1C and the bottom end of the inner cover 1D have an upper shaft hole 1E and a lower shaft hole 1F that are arranged parallel to each other. The kneading shaft 31 is disposed on the upper shaft hole 1E of the mounting base 1C. Both ends of the kneading shaft 31 protrude to the left and right ends of the mounting base 1C for connection of the two oscillating mechanisms 5, the shoulder massage mechanism 6 and the massage top rod 71. The hammering shaft 41 is disposed on the lower shaft hole 1F through a hammering bearing 74. Both ends of the hammering shaft 41 protrude to the left and right ends of the mounting base 1C for installation of the two hammering eccentric wheels 72 and the two connecting rods 73. A motor base 22 is provided inside the mounting base 1C. The drive motor 2 is locked onto the motor base 22. A mounting guide post 35 is provided on the side of the mounting base 1C corresponding to the first worm 21 of the drive motor 2. The first worm wheel 32 and the second worm 33 are integrally formed and centrally sleeved on the mounting guide post 35, so that the first worm wheel 32 and the second worm 33 can be driven to rotate by the drive motor 2. The first transmission mechanism 3 and the second transmission mechanism 4 are both installed in the mounting base 1C and the inner cover 1D. A battery slot 1G for installing the battery 8 is provided on one side of the bottom of the mounting base 1C. The battery 8 is limited and installed between the bottom surface of the mounting base 1C and the lower shell 1A. The upper cover 1B covers the inner cover 1D. The circuit board 9 and the heating lamp plate can be installed between the inner cover 1D and the upper cover 1B. The oscillating mechanism 5, the kneading arm 61 and the massage rod 71 are exposed outside the upper cover 1B. This utility model provides a mounting base 1C and an inner cover 1D inside the core housing 1, integrating the drive motor 2, the first transmission mechanism 3 and the second transmission mechanism 4 within the space formed by the mounting base 1C and the inner cover 1D. This allows for a compact layout design, effectively reducing the overall size of the massager and facilitating the assembly and maintenance of the transmission components. In addition, it can reduce operating noise and improve massage comfort.

[0037] In this embodiment, one end of the drive motor 2 is connected to a first worm gear 21, and the first worm gear 21 is provided with a first helical tooth 211. The first transmission mechanism 3 includes a kneading shaft 31, a first worm wheel 32 meshing with the first helical tooth 211, a second worm gear 33 fixedly connected to the first worm wheel 32 and having a second helical tooth 331, and a second worm wheel 34 meshing with the second worm gear 33. The second worm wheel 34 is fixedly connected to the kneading shaft 31.

[0038] The second transmission mechanism 4 includes a hammering shaft 41, a drive wheel 42, a driven wheel 43, a belt 44, and a one-way limiting mechanism 45. The drive wheel 42 is located on the side of the first worm gear 21 near the drive motor 2 and is spaced apart from the first helical teeth 211. The driven wheel 43 is spaced apart from the drive wheel 42. One end of the belt 44 is sleeved on the drive wheel 42, and the other end is sleeved on the driven wheel 43. The hammering shaft 41 is spaced apart from the kneading shaft 31 and passes through the center of the driven wheel 43. The one-way limiting mechanism 45 connects the hammering shaft 41 and the driven wheel 43 and controls the hammering shaft 41 to rotate in one direction.

[0039] The function of the one-way limiting mechanism 45 is to limit the one-way rotation of the hammer shaft 41. There are various ways to use it. In this embodiment, the one-way limiting mechanism 45 uses a one-way bearing. The one-way bearing is sleeved in the center of the passive wheel 43. The rotation of the hammer shaft 41 is controlled by the forward or reverse rotation of the drive motor 2.

[0040] The kneading eccentric wheel 51 and the swing wheel 52 of the swing mechanism 5 are connected by a connecting shaft 53. One end face of the connecting shaft 53 and the kneading eccentric wheel 51 is perpendicular, and the end face of the connecting shaft 53 and the swing wheel 52 is inclined, so that the swing wheel 52 and the kneading eccentric wheel 51 are inclined to form the swing inclined surface 54. The outer diameter of the connecting shaft 53 is larger than that of the kneading eccentric wheel 51 and the swing wheel 52, so that the two end faces of the connecting shaft 53 form abutment surfaces for the kneading swing arm 61 and the massage top rod 71 to be installed. The kneading swing arm 61 is sleeved on the eccentric wheel 52. The inner end of the kneading swing arm 61 abuts against the abutting surface of the connecting shaft 53, and the outer end is limited to the eccentric mechanism 5 by the baffle 55. The massage rod 71 is sleeved on the kneading eccentric wheel 51. The outer end of the massage rod 71 abuts against the abutting surface of the connecting shaft 53, and the inner end is limited to the kneading eccentric wheel 51 by the eccentric cover plate 56.

[0041] The kneading arm 61 is sleeved on the swing wheel 52 of the swing mechanism 5. The top of the kneading arm 61 is provided with a front massage seat 612 and a rear massage seat 613 that are staggered up and down and left and right. A kneading massage head 62 is installed on the front massage seat 612 and the rear massage seat 613 respectively.

[0042] The bottom ends of the two massage rods 71 ​​are respectively sleeved on the kneading eccentric wheels 51 of the two oscillating mechanisms 5. The top ends of the massage rods 71 ​​extend upwards at an angle towards one side of the hammering shaft 41. The top end of the massage rods 71 ​​is provided with a massage head insert, and the back massage head 711 is detachably fitted onto the massage head insert. A connecting rod movable groove 712 is provided near the middle bottom end of the massage rods 71. The left and right sides of the connecting rod movable groove 712 are respectively provided with through shaft holes 713. One end of the connecting rod 73 is rotatably mounted on the shaft hole 713 through a pin 75. The other end of the connecting rod 73 is sleeved on the hammering eccentric wheel 72 through a connecting rod bearing 76.

[0043] The specific working principle and operation process of this novel top-rod type shoulder and back massager are as follows: When the drive motor 2 rotates forward, the first worm 21 rotates accordingly. The first helical tooth 211 meshes with the first worm wheel 32, driving the second worm 33, which is integrally formed with the first worm wheel 32, to rotate around the mounting guide post 35. The second helical tooth 331 on the second worm 33 meshes with the second worm wheel 34, driving the kneading shaft 31, which is fixedly connected to the second worm wheel 34, to rotate. The kneading shaft 31 drives the two-end swing mechanisms 5 to rotate synchronously. The swing inclined surface 54 of the swing wheel 52 applies a circumferential thrust and a radial component force to the sleeve end of the kneading swing arm 61. The limiting rod 611 at the bottom of the kneading swing arm 61 moves in the limiting groove 11, limiting the swing angle of the kneading swing arm 61, so that the kneading swing arm 61 uses the sleeve point of the swing wheel 52 as the fulcrum to make a small-amplitude, fixed-track periodic reciprocating swing, without producing excessively large-angle swings. The kneading massage head 62 performs kneading massage on the user's shoulders.

[0044] Meanwhile, the drive wheel 42 on the first worm gear 21 drives the driven wheel 43 to rotate via the belt 44. Since the one-way limiting mechanism 45 is unlocked in the forward rotation direction, the driven wheel 43 drives the percussion shaft 41 to rotate unidirectionally. The percussion eccentric wheels 72 at both ends of the percussion shaft 41 rotate accordingly, driving the connecting rod 73 to reciprocate through the connecting rod bearing 76. The other end of the connecting rod 73 drives the massage top rod 71 via the pin 75. The bottom end of the massage top rod 71 is constrained by the rotational driving force of the kneading eccentric wheel 51, while the middle part is pushed and pulled by the connecting rod 73, converting the rotational motion into up-and-down reciprocating motion, causing the back massage head 711 at the top of the massage top rod 71 to perform a percussion massage on the user's back. At this time, shoulder kneading and back percussion are performed simultaneously.

[0045] When the drive motor 2 reverses, the first worm gear 21 rotates in the opposite direction, and the first transmission mechanism 3 still drives the kneading shaft 31 to rotate, continuing the shoulder kneading action. However, the drive wheel 42 rotates in the opposite direction, and the driven wheel 43 also rotates in the opposite direction. At this time, the one-way limiting mechanism 45 is in the locked state, the driven wheel 43 is fixed relative to the pounding shaft 41, the pounding shaft 41 cannot rotate, the pounding eccentric wheel 72 stops moving, and the back pounding action stops. At this time, only the shoulder kneading massage is retained, and there is no back pounding action.

[0046] By controlling the forward and reverse rotation of the drive motor 2, the switching between the kneading and pounding synchronous mode and the pure kneading mode can be realized without the need for an additional clutch mechanism or complex control circuit, making the structure simple and reliable.

[0047] The above embodiments and figures are not intended to limit the product form and style of this utility model. Any appropriate changes or modifications made by those skilled in the art should be considered as not departing from the patent scope of this utility model.

Claims

1. A top lever type shoulder and back massager movement, characterized by, include: Movement housing; The drive motor is located inside the mechanism housing; The first transmission mechanism has a kneading shaft, and the first transmission mechanism is connected to a drive motor to drive the kneading shaft to rotate. The second transmission mechanism has a hammering shaft with a one-way limiting mechanism on the hammering shaft. The second transmission mechanism is connected to a drive motor to drive the hammering shaft to rotate in one direction. Two swaying mechanisms are symmetrically fixed at both ends of the kneading shaft. The two swaying mechanisms include kneading eccentric wheels arranged opposite each other and swaying wheels arranged in opposite directions. The swaying wheels are inclined relative to the kneading eccentric wheels to form swaying slopes. A shoulder massage mechanism includes two kneading arms and two kneading massage heads. The two kneading arms are correspondingly mounted on two eccentric wheels. The kneading massage heads are installed at the top of the kneading arms, and a limiting rod is provided at the bottom of the kneading arms. The mechanism housing is provided with a limiting groove for the limiting rod to move. The back-pounding mechanism includes two massage rods, two eccentric hammering wheels, and two connecting rods. The two eccentric hammering wheels are symmetrically mounted on both ends of the hammering shaft. The outer ends of the two eccentric hammering wheels are connected to one end of the two connecting rods. The other ends of the two connecting rods are rotatably connected to the bottom middle part of the massage rods. The bottom ends of the two massage rods are mounted on the kneading eccentric wheels of the swing mechanism. The top ends of the two massage rods are equipped with back massage heads.

2. The top-pole type shoulder and back massaging movement as claimed in claim 1, wherein: The first transmission mechanism includes a first worm connected to a drive motor, a first worm wheel meshing with the first worm, a second worm fixedly connected to the first worm wheel, and a second worm wheel meshing with the second worm. The second worm wheel is fixedly connected to the kneading shaft. The first worm is provided with a first helical tooth, and the second worm is provided with a second helical tooth.

3. The top-pole type shoulder and back massaging movement as claimed in claim 2, wherein: The second transmission mechanism includes a drive wheel sleeved on the first worm, a driven wheel spaced at a corresponding interval from the drive wheel, and a belt connecting the drive wheel and the driven wheel. The hammering shaft passes through the center of the driven wheel, and the one-way limiting mechanism connects the hammering shaft and the driven wheel to control the one-way rotation of the hammering shaft.

4. The top-pole type shoulder and back massaging movement as claimed in claim 3, wherein: When the kneading massage head rotates to its furthest position away from the back massage head, the back massage head moves to its bottom. At this point, the distance D1 between the kneading massage head and the back massage head is at its maximum, and the kneading massage head and the back massage head are in a relaxed state. When the kneading massage head rotates closer to the back massage head, the back massage head moves to its top. At this point, the distance D between the kneading massage head and the back massage head is at its minimum, and the kneading massage head and the back massage head are in a clamped state. The range of motion between the kneading massage head and the back massage head is 10mm ≤ D ≤ 70mm. The range of motion for the distance D2 between the left and right kneading massage heads is 50-150mm.

5. The top-pole type shoulder and back massaging movement as claimed in claim 1, wherein: The oscillation mechanism includes a connecting shaft that connects the kneading eccentric wheel and the oscillation wheel. The end face of the connecting shaft that connects to the kneading eccentric wheel is a vertical surface, and the end face of the connecting shaft that connects to the oscillation wheel is an inclined surface. The outer diameter of the connecting shaft is larger than that of the kneading eccentric wheel and the oscillation wheel, respectively. The two end faces respectively form abutment surfaces for the kneading swing arm and the massage top rod to be installed.

6. A top-pole type shoulder carrying massaging movement according to claim 2 or 3, characterized in that: The mechanism housing includes a lower shell, an upper cover, and a mounting base and an inner cover disposed between the lower shell and the upper cover. The mounting base and the inner cover have an upper shaft hole and a lower shaft hole arranged in parallel and spaced apart. The kneading shaft is disposed on the upper shaft hole, and the pounding shaft is disposed on the lower shaft hole through a pounding bearing. A motor base is provided inside the mounting base, and the drive motor is locked on the motor base. A battery slot is provided on one bottom side of the mounting base.

7. The top-pole type shoulder and back massaging movement as claimed in claim 1, wherein: The top of the kneading arm is provided with a front massage seat and a rear massage seat that are staggered in the upper, lower and left, and kneading massage heads are respectively installed on the front massage seat and the rear massage seat; the outer end of the kneading arm is limited on the deflection wheel by a baffle.

8. The top-pole type shoulder and back massaging movement as claimed in claim 1, wherein: The bottom of the end of the massage rod near the kneading shaft is provided with a connecting rod movable groove. The left and right sides of the connecting rod movable groove are respectively provided with through shaft holes. One end of the connecting rod is set in the connecting rod movable groove, and the connecting rod is rotatably set in the connecting rod movable groove by the cooperation of the pin and the shaft hole.

9. The top-pole type shoulder and back massaging movement as claimed in claim 1, wherein: The two ends of the hammering shaft are fitted with hammering bearings, which are installed inside the mechanism housing. The other end of the connecting rod is fitted onto the hammering eccentric wheel through a connecting rod bearing. The one-way limiting mechanism is a one-way bearing, which is fitted onto the center of the driven wheel.

10. The top-pole type shoulder and back massaging movement as claimed in claim 6, wherein: The mounting base is provided with a mounting guide post on one side corresponding to the first worm gear. The first worm wheel and the second worm gear are integrally formed and are centrally sleeved on the mounting guide post. A circuit board is also provided inside the mechanism housing, and the circuit board is installed between the inner cover and the upper cover.

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