Neck massager

Abstract

The utility model discloses a neck massager, including casing, drive motor, first transmission shaft, transmission belt, second transmission shaft, knead mechanism and knock mechanism, drive motor is installed in the casing, and first transmission shaft transmission is connected in drive motor, and transmission belt transmission is connected in first transmission shaft, and second transmission shaft transmission is connected in transmission belt, and knead mechanism transmission is connected in first transmission shaft, and knock mechanism transmission is connected in second transmission shaft. Through the transmission cooperation of a drive motor in the same casing through first transmission shaft, transmission belt, second transmission shaft, can distribute power to knead mechanism and knock mechanism simultaneously, only one motor can be in the same time output knead and knock two different movement forms, save motor quantity and internal space, two kinds of massage action are driven by the same power source, and frequency, phase is natural consistent, thoroughly eliminates the massage idle gear of traditional time-sharing switching, guarantees the continuity and superposition effect of compound technique.

Description

Technical Field

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

[0002] In today's high-intensity, fast-paced work and life, prolonged use of electronic devices such as computers and mobile phones, coupled with maintaining poor sitting or standing postures, keeps the neck and shoulder muscles under constant tension. This easily leads to muscle stiffness, impaired blood circulation, and the accumulation of metabolic waste, resulting in discomfort such as soreness and pain. To alleviate these symptoms, targeted massage of the neck and shoulder area is necessary to promote local blood circulation, accelerate the removal of metabolic products such as lactic acid, and ultimately relax the muscles, soothe the nerves, and improve overall work efficiency and quality of life.

[0003] Various portable neck massagers have appeared on the market, allowing users to receive massage services anytime without relying on a professional masseur. However, most existing products only offer a single massage mode: 1. Single kneading mechanism: The massage head is driven to oscillate back and forth by an eccentric wheel or rocker arm, simulating the pressing and kneading of the fingers on the muscle fibers. Although it can relax the superficial muscles to a certain extent, it cannot produce high-frequency vertical impact and is difficult to reach the deep muscle groups. 2. Single tapping mechanism: This mechanism uses a cam or electromagnetic drive component to make the massage head produce vertical and rapid taps. Although it can generate a certain amount of shock wave transmission and promote blood circulation, it cannot fully relax and stretch the muscle groups due to the lack of kneading action.

[0004] In fact, the reason why traditional manual massage can significantly relieve neck and shoulder fatigue is precisely because the two techniques of kneading and tapping complement each other: kneading stretches muscle fibers and releases adhesions through continuous pressing and rolling; tapping stimulates deep muscles and fascia with high-frequency vertical impact, increases blood flow, and accelerates the excretion of metabolic waste. The synergistic effect of the two techniques can achieve a complete closed loop of "relaxation-activation-recovery," significantly enhancing the massage effect.

[0005] However, existing neck and shoulder massage devices generally cannot achieve simultaneous kneading and tapping within a single working cycle. The kneading mechanism and the tapping mechanism each occupy independent motors and transmission paths, resulting in a thick and heavy overall device with poor wearing comfort. Utility Model Content

[0006] The technical problem to be solved by this utility model is to provide a neck massager with a compact structure that can simultaneously output kneading and tapping motions.

[0007] To solve the above-mentioned technical problems, the technical solution adopted by this utility model is: a neck massager, comprising... case; A drive motor is installed inside the housing; The first drive shaft is connected to the drive motor. A transmission belt is connected to the first transmission shaft. The second drive shaft is connected to the drive belt. The kneading mechanism is connected to the first drive shaft. The striking mechanism is connected to the second drive shaft.

[0008] Furthermore, the tapping mechanism includes an eccentric disc, a bearing, a connector, a sliding sleeve structure, and a tapping massage head. The eccentric disc is mounted on the second drive shaft, and the eccentric disc is provided with an eccentric shaft. The bearing is mounted on the eccentric shaft. One end of the connector is connected to the bearing, and the other end is connected to the tapping massage head and is slidably mounted on the sliding sleeve structure. The sliding sleeve structure is mounted on the housing.

[0009] Furthermore, the tapping massage head is detachably mounted to the connector.

[0010] Furthermore, the tapping massage head has a protruding insertion part, and the connector has an insertion groove, with the insertion part inserted into the insertion groove.

[0011] Furthermore, the insertion part is provided with a damping sleeve, which abuts against the inner sidewall of the insertion groove.

[0012] Furthermore, the outer side wall of the plug portion is provided with a first limiting protrusion extending along its plugging direction, and the inner side wall of the plug groove is provided with a limiting groove that plugs into and cooperates with the first limiting protrusion; or, the inner side wall of the plug groove is provided with a first limiting protrusion extending along the plugging direction of the plug portion, and the outer side wall of the plug portion is provided with a limiting groove that plugs into and cooperates with the first limiting protrusion.

[0013] Furthermore, the tapping massage head is also provided with a second limiting protrusion connected to the plug-in portion, and a buffer portion is provided at one end of the damping sleeve near the second limiting protrusion, the buffer portion abutting against the second limiting protrusion and the connector.

[0014] Furthermore, the sliding sleeve structure includes a collar and a ball rotatably mounted on the inner sidewall of the collar. The collar is mounted on the housing and surrounds the outer side of the connector, and the ball slides against the outer sidewall of the connector.

[0015] Furthermore, the inner sidewall of the collar is provided with a clearance notch that connects to its end.

[0016] Furthermore, the kneading mechanism includes a kneading massage head, a kneading swing arm, an eccentric wheel, and a rotating gear. The rotating gear is installed inside the housing and is connected to the first transmission shaft. The eccentric wheel is installed above the rotating gear, and the upper end of the eccentric wheel is connected to the kneading swing arm. The kneading swing arm is connected to the kneading massage head.

[0017] The beneficial effects of this utility model are as follows: The neck massager provided by this utility model uses a single drive motor in the same housing, which is connected by a first transmission shaft, a transmission belt, and a second transmission shaft. This allows power to be distributed simultaneously to the kneading mechanism and the tapping mechanism. Only one motor is needed to output two different motion forms, kneading and tapping, at the same time. This saves on the number of motors and internal space, and significantly reduces the weight and manufacturing cost of the whole machine. The two massage actions are driven by the same power source, and their frequency and phase are naturally consistent, completely eliminating the massage gap caused by traditional time-switching, and ensuring the continuity and superimposed effect of the compound techniques. Attached Figure Description

[0018] Figure 1 This is an exploded view of the neck massager according to Embodiment 1 of this utility model; Figure 2 This is an assembly drawing of the neck massager according to Embodiment 1 of this utility model; Figure 3 This is a cross-sectional structural diagram of the neck massager according to Embodiment 1 of this utility model; Figure 4 for Figure 3 Detailed view of point A in the middle; Figure 5 This is another cross-sectional structural diagram of the neck massager according to Embodiment 1 of this utility model; Figure 6 This is a cross-sectional structural diagram of the neck massager according to Embodiment 2 of this utility model; Figure 7 for Figure 6 Detailed view of point B in the middle; Figure 8 This is a cross-sectional structural diagram of the neck massager according to Embodiment 3 of this utility model; Figure 9 This is a cross-sectional structural diagram of the neck massager according to Embodiment 4 of this utility model.

[0019] Label Explanation: 1. Housing; 11. Bottom shell; 12. Shell cover; 2. Drive motor; 3. First drive shaft; 4. Drive belt; 5. Second drive shaft; 6. Striking mechanism; 61. Eccentric disc; 611. Eccentric shaft; 62. Bearing; 63. Connecting piece; 631. Insertion groove; 632. First limiting protrusion; 633. First internal thread; 634. Second external thread; 64. Sliding sleeve structure; 641. Ball bearing; 642. Sleeve 643. Ring; 65. Alternating notch; 66. Tapping massage head; 67. Insertion part; 68. Limiting groove; 69. Second limiting protrusion; 60. First external thread; 61. Damping sleeve; 62. Buffer part; 63. Threaded locking sleeve; 64. Second internal thread; 65. Third internal thread; 7. Kneading mechanism; 76. Kneading massage head; 77. Kneading swing arm; 78. Eccentric wheel; 79. Rotating gear. Detailed Implementation

[0020] To explain in detail the technical content, objectives, and effects of this utility model, the following description is provided in conjunction with the embodiments and accompanying drawings.

[0021] Please refer to Figures 1 to 9 A neck massager, including Casing 1; The drive motor 2 is installed inside the housing 1; The first transmission shaft 3 is connected to the drive motor 2. The transmission belt 4 is connected to the first transmission shaft 3. The second drive shaft 5 is connected to the drive belt 4. The kneading mechanism 7 is connected to the first drive shaft 3. The striking mechanism 6 is connected to the second drive shaft 5.

[0022] As can be seen from the above description, the beneficial effects of this utility model are as follows: by using a drive motor 2 within the same housing 1, and through the transmission cooperation of the first transmission shaft 3, the transmission belt 4, and the second transmission shaft 5, power can be simultaneously distributed to the kneading mechanism 7 and the tapping mechanism 6. Only one motor can output two different motion forms of kneading and tapping at the same time, which saves the number of motors and internal space, and significantly reduces the weight and manufacturing cost of the whole machine. The two massage actions are driven by the same power source, and the frequency and phase are naturally consistent, completely eliminating the massage gap caused by traditional time-switching, and ensuring the continuity and superimposed effect of the compound techniques.

[0023] Furthermore, the tapping mechanism 6 includes an eccentric disc 61, a bearing 62, a connector 63, a sliding sleeve structure 64, and a tapping massage head 65. The eccentric disc 61 is mounted on the second transmission shaft 5, and the eccentric disc 61 is provided with an eccentric shaft 611. The bearing 62 is mounted on the eccentric shaft 611. One end of the connector 63 is connected to the bearing 62, and the other end is connected to the tapping massage head 65 and is slidably mounted on the sliding sleeve structure 64. The sliding sleeve structure 64 is mounted on the housing 1.

[0024] As described above, the circular motion generated by the eccentric disc 61 is converted into the oscillating motion of the connector 63 by the bearing 62. The stroke of the connector 63 is precisely determined by the eccentricity of the eccentric disc 61, so that the impact depth of the tapping massage head 65 is controllable. The sliding sleeve structure 64 can provide limiting and guiding for the connector 63, and precisely limit the impact direction and impact angle of the massage head.

[0025] Furthermore, the tapping massage head 65 is detachably mounted on the connector 63.

[0026] As described above, the tapping massage head 65 and the connector 63 are detachably connected, allowing users to replace the tapping massage head 65 with different hardness and shape as needed, achieving a personalized massage experience with multiple heads in one machine, while also facilitating cleaning and maintenance.

[0027] Furthermore, the tapping massage head 65 is provided with a protruding insertion part 651, and the connector 63 is provided with an insertion groove 631, and the insertion part 651 is inserted into the insertion groove 631.

[0028] As can be seen from the above description, the tapping massage head 65 can be quickly assembled and disassembled by the insertion of the insertion part 651 and the insertion slot 631.

[0029] Furthermore, the insertion part 651 is provided with a damping sleeve 66, which abuts against the inner sidewall of the insertion groove 631.

[0030] As can be seen from the above description, the addition of a damping sleeve 66 to the outer periphery of the insertion part 651 creates an elastic interference fit between the insertion groove 631 and the insertion part 651, which can absorb the micro-vibrations generated by high-frequency impacts and reduce noise.

[0031] Furthermore, the tapping massage head 65 is also provided with a second limiting protrusion 653 connected to the plug-in portion 651, and a buffer portion 661 protrudes from one end of the damping sleeve 66 near the second limiting protrusion 653. The buffer portion 661 abuts against the second limiting protrusion 653 and the connector 63.

[0032] As described above, the damping sleeve 66 has a buffer part 661 at its end, which is sandwiched between the limiting protrusion and the connector 63 to form a secondary vibration reduction. The buffer part 661 is first compressed and deformed to further reduce the impact peak and protect the connector 63 and the housing 1. Through the cooperation between the limiting protrusion and the buffer part 661, the striking massage head 65 is prevented from rigidly impacting the housing 1 at its limit stroke, thus improving the safety of use.

[0033] Furthermore, the outer side wall of the insertion part 651 is provided with a first limiting protrusion 632 extending along its insertion direction, and the inner side wall of the insertion groove 631 is provided with a limiting groove 652 that engages with the first limiting protrusion 632; or, the inner side wall of the insertion groove 631 is provided with a first limiting protrusion 632 extending along the insertion direction of the insertion part 651, and the outer side wall of the insertion part 651 is provided with a limiting groove 652 that engages with the first limiting protrusion 632.

[0034] As can be seen from the above description, the first limiting protrusion 632 and the limiting groove 652 that mesh with each other are provided between the plug-in part 651 and the plug-in groove 631, which can prevent the plug-in part 651 from moving around in the circumference and ensure that the striking force is transmitted in the set direction.

[0035] Furthermore, the sliding sleeve structure 64 includes a collar 642 and a ball 641 rotatably mounted on the inner sidewall of the collar 642. The collar 642 is mounted on the housing 1 and surrounds the outer side of the connector 63. The ball 641 abuts against the outer sidewall of the connector 63.

[0036] As can be seen from the above description, the ball 641 can transform the sliding friction between the connector 63 and the collar 642 into rolling friction, which greatly reduces the coefficient of friction and makes the movement of the connector 63 smoother.

[0037] Furthermore, the inner sidewall of the collar 642 is provided with a clearance notch 643 that connects to its end.

[0038] As can be seen from the above description, the notch 643 on the inner sidewall of the collar 642 can prevent the movement of the connector 63, and at the same time provide a grease storage space and a channel for impurity discharge for the ball 641.

[0039] Furthermore, the kneading mechanism 7 includes a kneading massage head 71, a kneading swing arm 72, an eccentric wheel 73, and a rotating gear 74. The rotating gear 74 is installed inside the housing 1 and is connected to the first transmission shaft 3. The eccentric wheel 73 is installed above the rotating gear 74. The upper end of the eccentric wheel 73 is connected to the kneading swing arm 72, and the kneading swing arm 72 is connected to the kneading massage head 71.

[0040] As described above, the rotating gear 74 directly meshes with the first transmission shaft 3, resulting in high torque transmission efficiency. The rotation of the eccentric wheel 73 drives the swing arm to perform spatial trajectory movements, causing the kneading massage head 71 to produce a three-dimensional kneading action similar to fingers, namely "pressing-lifting-relaxing", with a larger coverage area.

[0041] Please refer to Figures 1 to 5 Embodiment 1 of this utility model is: a neck massager, used for massaging the human body, especially suitable for massaging the neck; please refer to... Figure 1 and Figure 2 The neck massager includes a housing 1, a drive motor 2, a first drive shaft 3, a drive belt 4, a second drive shaft 5, a kneading mechanism 7, and a tapping mechanism 6. The drive motor 2 is installed inside the housing 1. The first drive shaft 3 is installed inside the housing 1 and is connected to the drive motor 2. The drive belt 4 is connected to the first drive shaft 3. The second drive shaft 5 is rotatably installed inside the housing 1 and connected to the drive belt 4. The kneading mechanism 7 is connected to the first drive shaft 3 and performs kneading massage on body parts in a manner similar to a hand. The tapping mechanism 6 is connected to the second drive shaft 6. 5. It is used to mimic the tapping massage of human body parts by the hand; by using a drive motor 2 in the same housing 1, through the transmission cooperation of the first transmission shaft 3, the transmission belt 4, and the second transmission shaft 5, the power can be distributed to the kneading mechanism 7 and the tapping mechanism 6 at the same time. Only one motor can output two different motion forms of kneading and tapping at the same time, which saves the number of motors and internal space, and significantly reduces the weight and manufacturing cost of the whole machine; the two massage actions are driven by the same power source, and the frequency and phase are naturally consistent, completely eliminating the massage gap caused by traditional time-switching, and ensuring the continuity and superposition effect of compound techniques.

[0042] For specific details, please refer to... Figure 1 The transmission belt 4 is a transmission belt. Both the first transmission shaft 3 and the second transmission shaft 5 are equipped with transmission gears. One end of the transmission belt 4 meshes with the transmission gear of the first transmission shaft 3, and the other end meshes with the transmission gear of the second transmission shaft 5. The first transmission shaft 3 is driven to rotate by the drive motor 2, causing the kneading mechanism 7 to move. At the same time, the first transmission shaft 3 drives the second transmission shaft 5 to rotate by the transmission belt 4, thereby driving the striking mechanism 6 to move. More specifically, the housing 1 includes a bottom shell 11 and a cover 12 installed on the bottom shell 11. A mounting cavity is formed between the cover 12 and the bottom shell 11. The drive motor 2, the first transmission shaft 3, the second transmission shaft 5, the transmission part of the kneading mechanism 7, and the transmission part of the striking mechanism 6 are installed in the mounting cavity. The mounting cavity formed by the cooperation of the cover 12 and the bottom shell 11 can protect each transmission component.

[0043] Please combine Figure 2 After the kneading mechanism 7 and the tapping mechanism 6 are installed on the housing 1, the motion output ends of the kneading mechanism 7 and the tapping mechanism 6 are exposed on the housing cover 12, and massage is achieved by contacting the human body parts through the motion output ends.

[0044] Please combine Figure 3 The striking mechanism 6 includes an eccentric disc 61, a bearing 62, a connector 63, a sliding sleeve structure 64, and a striking massage head 65. The eccentric disc 61 is mounted on the second transmission shaft 5. The eccentric disc 61 has an eccentric shaft 611, the central axis of which is misaligned with the central axis of the second transmission shaft 5. The bearing 62 is mounted on the eccentric shaft 611. One end of the connector 63 is connected to the bearing 62, and the other end is connected to the striking massage head 65 and is slidably mounted on the sliding sleeve structure 64. The sliding sleeve structure 64 is mounted on the housing 1. The circular motion generated by the eccentric disc 61 is converted into the oscillating motion of the connector 63 via the bearing 62. The stroke of the connector 63 is precisely determined by the eccentricity of the eccentric disc 61, making the impact depth of the striking massage head 65 controllable. The sliding sleeve structure 64 can provide limiting and guiding for the connector 63, precisely limiting the impact direction and impact angle of the massage head.

[0045] To meet diverse massage needs, the tapping massage head 65 is detachably mounted on the connector 63. This allows users to replace the tapping massage head 65 with different hardness and shapes as needed, achieving a personalized massage experience with multiple heads on one device, while also facilitating cleaning and maintenance. Optionally, the detachable connection method includes, but is not limited to, at least one of the following: threaded connection, snap-fit ​​connection, screw connection, magnetic connection, etc. The specific method can be selected according to actual application requirements, and will not be elaborated here.

[0046] Please combine Figure 3 and Figure 4In this embodiment, the tapping massage head 65 is provided with a protruding insertion portion 651, and the connector 63 is provided with an insertion groove 631. The insertion portion 651 is inserted into the insertion groove 631. Through the insertion and engagement of the insertion portion 651 and the insertion groove 631, the tapping massage head 65 can be quickly assembled and disassembled. Specifically, the inner sidewall of the insertion groove 631 is provided with a first limiting protrusion 632 extending along the insertion direction of the insertion portion 651, and the outer sidewall of the insertion portion 651 is provided with a limiting groove 652 that engages with the first limiting protrusion 632; or, the outer sidewall of the insertion portion 651 is provided with a first limiting protrusion 632 extending along its insertion direction, and the inner sidewall of the insertion groove 631 is provided with a limiting groove 652 that engages with the first limiting protrusion 632. Understandably, the mutual engagement of the first limiting protrusion 632 and the limiting groove 652 between the plug portion 651 and the plug groove 631 can prevent the plug portion 651 from moving around in the circumference and ensure that the striking force is transmitted in the set direction.

[0047] Please combine Figure 4 The sliding sleeve structure 64 includes a collar 642 and balls 641 rotatably mounted on the inner wall of the collar 642. The collar 642 is mounted on the housing 1 and surrounds the outer side of the connector 63. The balls 641 abut against the outer wall of the connector 63. The balls 641 can convert the sliding friction between the connector 63 and the collar 642 into rolling friction, which greatly reduces the coefficient of friction and makes the movement of the connector 63 smoother. Optionally, the number of balls 641 can be set according to actual application requirements. Theoretically, it is also feasible to set only one ball 641 to abut against the connector 63; however, the multi-ball 641 scheme is more effective than the scheme of setting multiple balls 641 to abut against the outer wall of the connector 63. Furthermore, in the multi-ball bearing 641 solution, balls 641 can be respectively arranged at at least one set of opposite positions on the inner sidewall of the collar 642. In this way, the two opposite positions on the outer sidewall of the connector 63 can be engaged together, reducing the risk of the connector 63 becoming loose during movement.

[0048] Specifically, in this embodiment, there are two collars 642, and the ball bearing 641 is rotatably engaged between the two collars 642. Both collars 642 are installed on the housing cover 12. The inner sidewalls of the two collars 642 are provided with clearance notches 643 that connect their ends. The clearance notches 643 on the inner sidewalls of the collars 642 can avoid the movement of the connector 63, and at the same time provide a grease storage space and a channel for impurity discharge for the ball bearing 641.

[0049] Please combine Figure 5The kneading mechanism 7 includes a kneading massage head 71, a kneading swing arm 72, an eccentric wheel 73, and a rotating gear 74. The rotating gear 74 is installed inside the housing 1 and is connected to the first drive shaft 3. The eccentric wheel 73 is installed above the rotating gear 74, and the upper end of the eccentric wheel 73 is connected to the kneading swing arm 72. The kneading swing arm 72 is connected to the kneading massage head 71. The rotating gear 74 directly meshes with the first drive shaft 3, resulting in high torque transmission efficiency. The rotation of the eccentric wheel 73 drives the swing arm to perform spatial trajectory movements, causing the kneading massage head 71 to produce a three-dimensional kneading action similar to "pressing-lifting-relaxing" of fingers, covering a larger area. Specifically, the position of the first drive shaft 3 where it connects to the rotating gear 74 has threads that mesh with the rotating gear 74.

[0050] Specifically, since the transmission belt 4 is a transmission belt, the vibration and impact generated by the tapping mechanism 6 and the kneading mechanism 7 during operation can be buffered by the transmission belt, reducing the risk of structural failure, functional failure, and deterioration of massage effect caused by mutual vibration of the kneading mechanism 7 and the tapping mechanism 6 due to this compact spatial layout.

[0051] Optionally, the specific structure of the rotating gear 74 can be adjusted according to the actual transmission requirements. The rotating gear 74 can be a single transmission gear or a gear set formed by the meshing of multiple transmission gears. This embodiment will not elaborate on these options.

[0052] Please refer to Figure 6 and Figure 7 The second embodiment of this utility model is a further improvement on the plug-in portion 651 based on the first embodiment. In this second embodiment, the plug-in portion 651 is provided with a damping sleeve 66, which abuts against the inner sidewall of the plug-in groove 631. It can be understood that by adding a damping sleeve 66 to the outer periphery of the plug-in portion 651, an elastic interference fit is formed between the plug-in groove 631 and the plug-in portion 651, which can absorb the micro-vibrations generated by high-frequency impacts and reduce noise.

[0053] Alternatively, the damping sleeve 66 can be made of rubber, plastic, or other materials, and the specific material can be set according to the actual damping parameter requirements.

[0054] Please combine Figure 7The tapping massage head 65 is also provided with a second limiting protrusion 653 connected to the plug-in portion 651. The damping sleeve 66 has a buffer portion 661 protruding at one end near the second limiting protrusion 653. The buffer portion 661 abuts against the second limiting protrusion 653 and the connector 63. It can be understood that the buffer portion 661 at the end of the damping sleeve 66 is sandwiched between the limiting protrusion and the connector 63 to form a secondary vibration reduction. The buffer portion 661 is first compressed and deformed to further reduce the impact peak and protect the connector 63 and the housing 1. Through the cooperation of the limiting protrusion and the buffer portion 661, the tapping massage head 65 is prevented from rigidly impacting the housing 1 at the limit stroke, thus improving the safety of use.

[0055] Please refer to Figure 8 Embodiment 3 of this utility model is a further improvement on the plug-in part 651 based on Embodiment 1. In this embodiment 3: the outer side wall of the plug-in part 651 is provided with a first external thread 654, and the inner side wall of the plug groove 631 of the connector 63 is provided with a first internal thread 633 that meshes with the first external thread 654; when the tapping massage head 65 needs to be replaced, it can be quickly replaced simply by rotating the tapping massage head 65; in addition, the position of the tapping massage head 65 can be adjusted by adjusting the thread stroke between the plug-in part 651 and the connector 63, thereby adjusting the massage tapping depth.

[0056] Please refer to Figure 9 Embodiment 4 of this utility model is a further improvement on the plug-in portion 651 based on Embodiment 3. In this embodiment 4, a threaded locking sleeve 67 is further included. The threaded locking sleeve 67 is sleeved on the outer side of the plug-in portion 651 and the outer side of the connector 63. The inner sidewall of the threaded locking sleeve 67 is provided with a second internal thread 671 and a third internal thread 672. The second internal thread 671 engages with the first external thread 654 on the plug-in portion 651. The outer sidewall of the connector 63 is provided with a second external thread 634. The third internal thread 672 engages with the second external thread 634.

[0057] Specifically, the first external thread 654 engages with the first internal thread 633 to form a first threaded pair, the first external thread 654 engages with the second internal thread 671 to form a second threaded pair, and the second external thread 634 engages with the third internal thread 672 to form a third threaded pair. The first, second, and third threaded pairs have the same direction of rotation. The first and second threaded pairs have the same lead, and the third threaded pair has a smaller lead than the first threaded pair.

[0058] It should be noted that, because the lead of the third threaded pair is different from that of the first and second threaded pairs, tightening the threaded locking sleeve 67 alone can lock the first and second threaded pairs. In this case, the tapping massage head 65 cannot rotate. The tapping massage head 65 can only rotate after the threaded locking sleeve 67 is loosened to unlock the first and second threaded pairs. Therefore, when it is necessary to disassemble or adjust the position of the tapping massage head 65, it is necessary to first loosen the threaded locking sleeve 67, then simultaneously grasp the threaded locking sleeve 67 and the insertion part 651 of the tapping massage head 65, and finally simultaneously rotate the threaded locking sleeve 67 and the tapping massage head 65. Only with this configuration can the threaded rotation of the insertion part 651 relative to the connector 63 be achieved, reducing the risk of misoperation. In other words, the threaded locking sleeve 67, the insertion part 651, and the connector 63 form threaded pairs in pairs, and the lead of the third threaded pair is different from that of the first / second threaded pair, resulting in differential displacement among the three. By simultaneously adjusting the thread stroke of the connector 63 and the insertion part 651 through the first and second threaded pairs, the stability of the connection between the connector 63 and the insertion part 651 is greatly improved. Furthermore, by setting the third threaded pair, the tapping massage head 65 can be locked and unlocked, greatly reducing the risk of misoperation.

[0059] In summary, the neck massager provided by this utility model, by using a single drive motor within the same housing and transmitting power through a first transmission shaft, a transmission belt, and a second transmission shaft, can simultaneously distribute power to both the kneading and tapping mechanisms. Only one motor is needed to output both kneading and tapping motions at the same time, saving on the number of motors and internal space, and significantly reducing the overall weight and manufacturing cost. Since both massage actions are driven by the same power source, their frequency and phase are naturally consistent, completely eliminating the massage gaps caused by traditional time-switching techniques, and ensuring the continuity and synergistic effect of the combined massage techniques.

[0060] 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 neck massager, characterized in that, include case; A drive motor is installed inside the housing; The first drive shaft is connected to the drive motor. A transmission belt is connected to the first transmission shaft. The second drive shaft is connected to the drive belt. The kneading mechanism is connected to the first drive shaft. The striking mechanism is connected to the second drive shaft.

2. The neck massager according to claim 1, characterized in that, The tapping mechanism includes an eccentric disc, a bearing, a connector, a sliding sleeve structure, and a tapping massage head. The eccentric disc is mounted on the second drive shaft and has an eccentric shaft. The bearing is mounted on the eccentric shaft. One end of the connector is connected to the bearing, and the other end is connected to the tapping massage head and is slidably mounted on the sliding sleeve structure. The sliding sleeve structure is mounted on the housing.

3. The neck massager according to claim 2, characterized in that, The tapping massage head is detachably installed on the connector.

4. The neck massager according to claim 3, characterized in that, The tapping massage head has a protruding insertion part, and the connector has an insertion groove, into which the insertion part is inserted.

5. The neck massager according to claim 4, characterized in that, The outer side wall of the plug portion is provided with a first limiting protrusion extending along its plugging direction, and the inner side wall of the plug groove is provided with a limiting groove that plugs in and engages with the first limiting protrusion; or, the inner side wall of the plug groove is provided with a first limiting protrusion extending along the plugging direction of the plug portion, and the outer side wall of the plug portion is provided with a limiting groove that plugs in and engages with the first limiting protrusion.

6. The neck massager according to claim 4, characterized in that, The insertion part is provided with a damping sleeve, which abuts against the inner sidewall of the insertion groove.

7. The neck massager according to claim 6, characterized in that, The tapping massage head is also provided with a second limiting protrusion connected to the plug-in portion. The end of the damping sleeve near the second limiting protrusion is provided with a buffer portion, which abuts against the second limiting protrusion and the connector.

8. The neck massager according to claim 2, characterized in that, The sliding sleeve structure includes a collar and balls rotatably mounted on the inner sidewall of the collar. The collar is mounted on the housing and surrounds the outer side of the connector. The balls slide against the outer sidewall of the connector.

9. The neck massager according to claim 8, characterized in that, The inner wall of the collar has a notch that connects to its end.

10. The neck massager according to claim 1, characterized in that, The kneading mechanism includes a kneading massage head, a kneading swing arm, an eccentric wheel, and a rotating gear. The rotating gear is installed inside the housing and is connected to the first drive shaft. The eccentric wheel is installed above the rotating gear, and the upper end of the eccentric wheel is connected to the kneading swing arm. The kneading swing arm is connected to the kneading massage head.

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