Massage machine core and massage chair

Abstract

This application relates to the field of massage equipment technology, specifically to a massage mechanism and massage chair, including a mechanism housing, a drive device, and a massage device. The massage device is installed on the side of the mechanism housing closer to the user. The drive device includes a drive motor, a first gear, and a second gear disposed within the mechanism housing. The first gear is connected to the output end of the drive motor, and the second gear is connected to the massage device. The first gear and the second gear mesh with each other. It also includes a collapsible assembly, which abuts against the side of the second gear away from the massage device. When the massage device moves closer to the mechanism housing under pressure, the second gear squeezes the collapsible assembly, causing the collapsible assembly to deform and separate the second gear from the first gear. This application not only enables power cut-off but also allows the massage head to retract, effectively eliminating the safety risks caused by the protruding massage head.

Description

Technical Field

[0001] This application relates to the field of massage equipment technology, and more specifically, to a massage mechanism and a massage chair. Background Technology

[0002] With increasing health awareness and a faster pace of life, massage chairs, as home health devices for relieving fatigue and relaxing the mind and body, have become widely used in daily life. The massage mechanism, as the core component of a massage chair, directly determines the massage effect and the user experience.

[0003] Most massage mechanisms on the market currently use motor-driven gear transmission to rotate and raise the massage heads, providing kneading, tapping, and rubbing massage functions. However, in actual use, when a user adjusts their posture, stands up, or accidentally comes into contact with the running massage head due to body movement, the massage head may cause mechanical injuries such as squeezing, impact, or pinching, posing a significant safety hazard, especially for the elderly, children, or those with mobility impairments. This is particularly true in massage chairs used in vehicles, where the protruding massage heads can easily injure various parts of the user's body during dynamic movement. Furthermore, some products rely on elastic materials to wrap the massage heads to reduce impact, but this only provides passive cushioning and cannot fundamentally eliminate the risk, thus failing to achieve true active safety protection. Summary of the Invention

[0004] The purpose of this application is to provide a massage mechanism and massage chair, which can not only cut off the power through the collapsible component, but also retract the massage head, effectively eliminating the safety risks caused by the protrusion of the massage head.

[0005] This application is implemented as follows:

[0006] In a first aspect, this application provides a massage mechanism, including a mechanism housing, a drive device, and a massage device; the massage device is installed on the side of the mechanism housing closer to the user; the drive device includes a drive motor, a first gear, and a second gear disposed within the mechanism housing; the first gear is connected to the output end of the drive motor, and the second gear is connected to the massage device; the first gear and the second gear mesh with each other; it also includes a collapsing component, which abuts against the side of the second gear away from the massage device; when the massage device moves closer to the mechanism housing under pressure, the second gear squeezes the collapsing component, and the collapsing component deforms to separate the second gear from the first gear.

[0007] As an optional implementation, the collapse assembly includes an energy-absorbing structural component, a base, and a support ring; the support ring is sleeved on the rotating shaft of the second gear and abuts against the side of the second gear away from the massage device; one end of the energy-absorbing structural component is connected to the base and the other end is connected to the support ring; the base is fixedly disposed on the side of the mechanism housing away from the massage device.

[0008] As an optional implementation, the energy-absorbing structure has at least two elastically bent portions arranged axially spaced along the rotation axis.

[0009] As an optional implementation, there are multiple energy-absorbing structural members, which are arranged circumferentially around the rotation axis of the second gear.

[0010] As an optional implementation, the collapsible assembly further includes a spring element, one end of which abuts against the support ring and the other side of which abuts against the base.

[0011] As an optional implementation, the massage device includes two rotary massage mechanisms and two translational massage mechanisms; the drive motor includes two output worm gears located on both sides of the drive motor; each output worm gear has two first gears on opposite sides; wherein, one first gear drives one rotary massage mechanism and the other first gear drives one translational massage mechanism.

[0012] As an optional implementation, the rotary massage mechanism includes a first screw and a rotary massage head; the first screw is connected to a threaded hole on a second gear, and the end of the first screw away from the collapsible assembly is connected to the rotary massage head; the rotation of the second gear causes the first screw to move axially and can drive the rotary massage head to rotate.

[0013] As an optional implementation, the translational massage mechanism includes a second screw and a translational massage head; the second screw is connected to a threaded hole on a second gear, and an eccentric structural member is provided at the end of the second screw away from the collapsible assembly; the translational massage head is provided with a guide groove, and the eccentric structural member is provided with a protrusion inserted into the guide groove; the rotation of the second screw causes the translational massage head to move axially, and the eccentric structural member actuates the translational massage head to reciprocate along the guide groove.

[0014] As an optional implementation, the mechanism housing is provided with a guide structure; the guide structure includes two guide protrusions extending axially along the second screw, the two guide protrusions being located on both sides of the guide groove extension direction and fitting against the side wall of the translation massage head to limit the movement path of the translation massage head.

[0015] As an optional implementation, the eccentric structural member is further provided with a clamping member inserted into the protrusion, the clamping member and the eccentric structural member clamping the translational massage head.

[0016] As an optional implementation, the housing of the mechanism has a mounting hole on the side opposite to the massage device; the collapsible assembly abuts against the second gear through the mounting hole.

[0017] Secondly, this application provides a massage chair, including a massage chair body and the aforementioned massage mechanism, wherein the massage mechanism is installed in the massage chair body and is used to massage the user.

[0018] The beneficial effects of this application include:

[0019] The massage mechanism and massage chair provided in this application, by setting a collapsible component on the back side of the second gear, can drive the second gear to squeeze and deform the collapsible component when the massage device is subjected to abnormal external pressure, thereby realizing the automatic separation of the first gear and the second gear and cutting off the power transmission path. This structure can achieve mechanical active protection without relying on electronic sensors or control systems, with rapid response and high reliability; it effectively avoids safety hazards such as squeezing, impact or pinching caused by the user's body colliding with the operating massage head when getting up, adjusting posture or in a moving vehicle, significantly improving the safety of the product and the user experience; at the same time, the collapsible mechanism has a compact structure and high integration, without adding extra volume to the overall mechanism, which is conducive to the miniaturization and high safety design of massage chairs, especially car massage chairs. Attached Figure Description

[0020] To more clearly illustrate the technical solutions of the embodiments of this application, the accompanying drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this application and should not be regarded as a limitation of the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0021] Figure 1 This is one of the structural schematic diagrams of the massage mechanism in the embodiments of this application;

[0022] Figure 2 This is a second schematic diagram of the massage mechanism according to an embodiment of this application;

[0023] Figure 3 This is the third schematic diagram of the massage mechanism in the embodiments of this application;

[0024] Figure 4 This is the fourth schematic diagram of the massage mechanism in the embodiments of this application;

[0025] Figure 5This is the fifth schematic diagram of the massage mechanism in the embodiments of this application;

[0026] Figure 6 This is the sixth schematic diagram of the massage mechanism in the embodiments of this application;

[0027] Figure 7 This is the seventh schematic diagram of the massage mechanism in the embodiments of this application;

[0028] Figure 8 This is the eighth schematic diagram of the massage mechanism in the embodiments of this application;

[0029] Figure 9 This is the ninth schematic diagram of the massage mechanism in the embodiments of this application.

[0030] Icons: 100-Mechanical housing; 101-Drive device; 102-Massage device; 103-Drive motor; 104-First gear; 105-Second gear; 106-Collapsible assembly; 107-Energy-absorbing structure; 108-Base; 109-Support ring; 110-Elastic bending part; 111-Spring element; 112-Rotary massage mechanism; 113-Translational massage mechanism; 114-Output worm gear; 115-First screw; 116-Rotary massage head; 117-Second screw; 118-Translational massage head; 119-Eccentric structure; 120-Guide groove; 121-Protrusion; 122-Guide protrusion; 123-Clamping component. Detailed Implementation

[0031] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. The components of the embodiments of this application described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0032] Therefore, the following detailed description of the embodiments of this application provided in the accompanying drawings is not intended to limit the scope of the claimed application, but merely to illustrate selected embodiments of the application. All other embodiments obtained by those skilled in the art based on the embodiments of this application without inventive effort are within the scope of protection of this application.

[0033] It should be noted that similar reference numerals and letters in the following figures indicate similar items; therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures. Furthermore, the terms "first," "second," "third," etc., are used only to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0034] In the description of this application, it should also be noted that, unless otherwise expressly specified and limited, the terms "set up," "install," "connect," and "link" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0035] Most massage mechanisms on the market currently use motor-driven gear transmission to rotate and raise the massage heads, providing kneading, tapping, and rubbing massage functions. However, in actual use, when a user adjusts their posture, stands up, or accidentally comes into contact with the running massage head due to body movement, the massage head may cause mechanical injuries such as squeezing, impact, or pinching, posing a significant safety hazard, especially for the elderly, children, or those with mobility impairments. This is particularly true in massage chairs used in vehicles, where the protrusions of the massage heads can easily injure various parts of the user's body during vehicle movement. Furthermore, some products rely on elastic materials to wrap the massage heads to reduce impact, but this only provides passive cushioning and cannot fundamentally eliminate the risk, thus failing to achieve true active safety protection.

[0036] To address the aforementioned technical problems, embodiments of this application provide a massage mechanism and a massage chair.

[0037] Reference Figure 1 , Figure 2 as well as Figure 3 As shown, the massage mechanism provided in this application embodiment includes a mechanism housing 100, a drive device 101, and a massage device 102. The massage device 102 is installed on the side of the mechanism housing 100 closer to the user. The drive device 101 includes a drive motor 103, a first gear 104, and a second gear 105 disposed within the mechanism housing 100. The first gear 104 is connected to the output end of the drive motor 103, and the second gear 105 is connected to the massage device 102. The first gear 104 and the second gear 105 mesh with each other. It also includes a collapsible assembly 106, which abuts against the side of the second gear 105 away from the massage device 102. When the massage device 102 moves close to the mechanism housing 100 under pressure, the second gear 105 squeezes the collapsible assembly 106, and the collapsible assembly 106 deforms to separate the second gear 105 from the first gear 104.

[0038] It should be noted that the massage mechanism provided in this application embodiment constructs an active safety protection mechanism that can automatically interrupt power transmission under external impact by setting a mechanical collapse component 106. During operation, the drive motor 103 drives the second gear 105 to rotate via the first gear 104, thereby driving the massage device 102 to massage the user. When the user accidentally impacts the massage head and applies reverse pressure due to adjusting their sitting posture, standing up, or dynamic bumps during vehicle operation, the massage device 102 is pressed towards the core housing 100, pushing the second gear 105 to move inward synchronously, thereby squeezing the collapsible component 106 that is in contact with its back side. Under the action of external force, the collapsible component 106 undergoes elastic or plastic deformation, causing the second gear 105 to move away from the first gear 104 and eventually disengage, achieving immediate cut-off of power transmission. At this time, the massage head stops moving and retracts with the entire mechanism, avoiding continuous force that could cause squeezing or pinching. Thus, without the need for electronic sensors or control systems, it achieves fast and reliable active safety protection solely through mechanical structure response, making it suitable for home massage chairs and intelligent massage systems in dynamic in-vehicle environments.

[0039] It should be noted that the collapsible assembly 106 provides a certain preset support force to the second gear 105, which is used to maintain stable meshing between the second gear 105 and the first gear 104 under normal massage conditions, ensuring reliable power transmission. When the massage device 102 is subjected to external pressure that exceeds the preset support force of the collapsible assembly 106, the second gear 105 overcomes the support of the collapsible assembly 106 and undergoes axial displacement, squeezing the collapsible assembly 106 and causing it to deform, thereby triggering gear disengagement and realizing the automatic retraction of the massage device 102. When the external pressure is less than the preset support force, the collapsible assembly 106 maintains its original shape, does not interfere with the gear transmission, and the massage device 102 continues to operate normally. This design achieves intelligent mechanical response to external forces, ensuring the stability of the normal massage process while promptly activating the protection mechanism in the event of a sudden impact, effectively balancing the reliability and safety of the system operation.

[0040] The massage mechanism provided in this embodiment features a collapsible component 106 on the back of the second gear 105. When the massage device 102 is subjected to abnormal external pressure, the second gear 105 can be driven to squeeze and deform the collapsible component 106, thereby automatically separating the first gear 104 and the second gear 105 and cutting off the power transmission path. This structure achieves mechanical active protection without relying on electronic sensors or control systems, offering rapid response and high reliability. It effectively avoids safety hazards such as squeezing, impact, or pinching caused by the user's body colliding with the operating massage head when getting up, adjusting posture, or while the vehicle is in motion, significantly improving product safety and user experience. Furthermore, the collapsible mechanism is compact and highly integrated, without increasing the overall size of the mechanism, which is beneficial for the miniaturization and high safety design of massage chairs, especially car massage chairs.

[0041] Reference Figure 3 , Figure 4 As shown, in one optional implementation, the collapse assembly 106 includes an energy-absorbing structural member 107, a base 108, and a support ring 109; the support ring 109 is sleeved on the rotating shaft of the second gear 105 and abuts against the side of the second gear 105 away from the massage device 102; one end of the energy-absorbing structural member 107 is connected to the base 108 and the other end is connected to the support ring 109; the base 108 is fixedly disposed on the side of the mechanism housing 100 away from the massage device 102.

[0042] It should be noted that the collapse assembly 106 in this embodiment includes an energy-absorbing structure 107, a base 108, and a support ring 109. It achieves automatic overload disengagement protection through a combination of mechanical pre-tightening and controllable deformation. During operation, the support ring 109 is sleeved on the rotating shaft of the second gear 105 and maintains contact with the side of the second gear 105 away from the massage device 102, forming axial support for the second gear 105. One end of the energy-absorbing structure 107 is connected to the support ring 109, and the other end is connected to the base 108 fixed to the core housing 100. Under normal massage conditions, the energy-absorbing structure 107 provides a stable preset support force, ensuring reliable meshing between the second gear 105 and the first gear 104, and normal power transmission. When the massage device 102 is subjected to external... When the impact pressure exceeds the preset support force of the energy-absorbing structure 107, the massage device 102, together with the second gear 105, moves axially toward the core housing 100, pushing the support ring 109 to compress or stretch the energy-absorbing structure 107, causing it to undergo elastic or plastic deformation. At the same time, the support force is released, thereby disengaging the second gear 105 from the meshing state with the first gear 104, cutting off the power transmission, and realizing the automatic retraction of the massage head. This process does not require electronic control intervention and relies on the mechanical response of the structure itself to achieve fast and reliable active safety protection.

[0043] Among them, the energy-absorbing structure 107 can be made of metal or plastic spring sheet, which provides a stable preset support force by utilizing its elastic deformation capability. Under normal working conditions, it maintains a reliable connection of the transmission system. When subjected to excessive external force, it achieves axial displacement of the second gear 105 through controllable deformation, thereby triggering gear disengagement and completing the safety protection action.

[0044] Furthermore, based on actual safety requirements and product needs, the energy-absorbing structural component 107 can also be designed as a disposable plastic part. Upon encountering a severe impact, this plastic part undergoes plastic deformation or fracture collapse, absorbing impact energy through material destruction. This ensures rapid and complete separation of the transmission system, preventing injury caused by continuous power output. This design not only enhances the system's energy absorption capacity and response reliability but also allows for flexible adjustment of the trigger threshold through material and structural selection, balancing the diverse requirements for safety, cost, and maintainability in different application scenarios.

[0045] Reference Figure 4 As shown, as an optional embodiment, the energy-absorbing structure 107 has at least two elastically bent portions 110 arranged axially spaced along the rotation axis.

[0046] It should be noted that the energy-absorbing structural component 107 forms a stepped elastic support structure through multiple bends. When the second gear 105 is subjected to axial pressure from the massage device 102, the pressure is transmitted to the energy-absorbing structural component 107 via the support ring 109. Each elastic bend 110 undergoes elastic deformation in sequence, providing progressive resistance, enabling the collapse assembly 106 to respond to external forces in stages: under normal operating load, the bends maintain deformation within the elastic range, maintaining transmission stability; when the external impact force exceeds a preset threshold, the bends further compress or unfold, releasing the support force and pushing the second gear 105 to disengage from the first gear 104, achieving safe collapse. This structure not only improves the buffer stroke and energy absorption capacity of the energy-absorbing structural component 107, but also allows for precise control of the trigger pressure by adjusting the number, angle, and thickness of the bends, enhancing the reliability and adjustability of the safety protection mechanism, and making it suitable for product requirements with different massage intensities and safety levels.

[0047] Reference Figure 4 As shown, as an optional implementation, there are multiple energy-absorbing structural members 107, which are arranged circumferentially around the rotation axis of the second gear 105.

[0048] This embodiment of the application includes multiple energy-absorbing structural components 107, which are evenly spaced circumferentially around the rotation axis of the second gear 105. These symmetrically arranged energy-absorbing structural components 107 collectively provide balanced axial support to the second gear 105, ensuring uniform force distribution and smooth transmission under normal operating conditions. This prevents gear misalignment, abnormal meshing, or increased transmission noise caused by unilateral force application. When the massage device 102 is subjected to external impact, each energy-absorbing structural component 107 responds and deforms synchronously, ensuring the second gear 105 moves axially as a whole, improving the stability and reliability of the collapsing action, and preventing structural jamming or failure due to localized stress concentration. Furthermore, by adjusting the number and distribution of the energy-absorbing structural components 107, the overall support stiffness and collapsing trigger force can be flexibly controlled, enhancing the designability and adaptability of the structure. This circumferentially symmetrical arrangement not only improves the structural stability and safety of the system but also optimizes space utilization, making it suitable for the integrated design of compact massage mechanisms.

[0049] Reference Figure 4 As shown, as an optional implementation, the collapse assembly 106 further includes a spring element 111, one end of which abuts against the support ring 109 and the other side of which abuts against the base 108.

[0050] It should be noted that one end of the spring element 111 abuts against the support ring 109, and the other end abuts against the base 108, working in conjunction with the energy-absorbing structural component 107 to form a composite elastic support system. The working principle of this embodiment is as follows: Under normal massage conditions, the spring element 111 is in a pre-compressed or freely supported state, providing auxiliary axial preload to the support ring 109 and the second gear 105, enhancing the stability of the transmission system; when the massage device 102 is subjected to external impact pressure exceeding a preset threshold, the second gear 105 pushes the support ring 109 to move towards the bottom of the core housing 100, compressing the spring element 111, and simultaneously causing the energy-absorbing structural component 107 to deform. Both absorb the impact energy together, achieving dual protection of buffering and power cutoff. The introduction of spring element 111 effectively adjusts the collapse trigger force, extends the buffer stroke, makes the retreat process smoother, and reduces the damage to the mechanism structure caused by rigid impacts. Simultaneously, after the abnormal external force is eliminated, spring element 111, with its elastic reset capability, assists the support ring 109 and the second gear 105 in returning to their initial meshing position, achieving an automatic reset function after protection, thus improving system recoverability and ease of use. This design is particularly suitable for massage mechanism applications requiring frequent safety responses and high-reliability resets.

[0051] Reference Figure 5As shown, in one optional embodiment, the massage device 102 includes two rotary massage mechanisms 112 and two translational massage mechanisms 113; the drive motor 103 includes two output worm gears 114 located on both sides of the drive motor 103; each output worm gear 114 has two first gears 104 on opposite sides; wherein, one first gear 104 drives one rotary massage mechanism 112 and the other first gear 104 drives one translational massage mechanism 113 to move.

[0052] It should be noted that the massage device 102 includes two rotary massage mechanisms 112 and two translational massage mechanisms 113. The drive motor 103 has two output worm gears 114 located on its two sides respectively. Each output worm gear 114 has a first gear 104 on each opposite side, forming a symmetrical double-sided transmission layout. One first gear 104 on each side drives the corresponding rotary massage mechanism 112 through gear transmission to achieve rotary massage actions such as kneading and rolling. The other first gear 104 drives the corresponding translational massage mechanism 113 to perform lateral or radial reciprocating movement, achieving translational massage functions such as pushing and squeezing. This structure outputs two independent power sources simultaneously through a single drive motor 103, symmetrically driving both rotary and translational massage modes on the left and right sides. This not only achieves a multi-dimensional composite massage effect, simulating the realistic kneading and pushing massage techniques of human hands, improving comfort and massage diversity, but also features a compact structure and high transmission efficiency, avoiding the increased size and cost associated with multiple motors. This facilitates the miniaturization and functional integration of the massage mechanism.

[0053] Reference Figure 6 As shown, in one optional embodiment, the rotary massage mechanism 112 includes a first screw 115 and a rotary massage head 116; the first screw 115 is connected to a threaded hole provided on the second gear 105, and the end of the first screw 115 away from the collapsible assembly 106 is connected to the rotary massage head 116; the rotation of the second gear 105 causes the first screw 115 to move axially, and can drive the rotary massage head 116 to rotate.

[0054] It should be noted that when the drive motor 103 drives the second gear 105 to rotate via the first gear 104, the second gear 105, on the one hand, pushes the first screw 115 to move up and down axially through threaded transmission, realizing the extension and retraction adjustment of the massage head to adapt to the pressure requirements of users of different body sizes or different massage stages; on the other hand, since the threaded connection between the first screw 115 and the second gear 105 has a self-locking characteristic and a fixed structure, the rotational motion of the second gear 105 can be directly transmitted to the first screw 115, thereby driving the rotating massage head 116 to rotate synchronously, realizing a "lifting + rotation" composite motion. This design integrates linear reciprocating motion and rotational motion into the same transmission path, realizing multi-dimensional massage actions without additional drive components. The structure is simple and the transmission is efficient, significantly improving the three-dimensionality and realism of the massage, and is especially suitable for simulating complex massage techniques such as hand kneading and deep pressing.

[0055] Reference Figure 7 , Figure 8 As shown, in one optional embodiment, the translational massage mechanism 113 includes a second screw 117 and a translational massage head 118; the second screw 117 is connected to a threaded hole on the second gear 105, and an eccentric structural member 119 is provided at the end of the second screw 117 away from the collapsible assembly 106; the translational massage head 118 is provided with a guide groove 120, and the eccentric structural member 119 is provided with a protrusion 121 inserted into the guide groove 120; the rotation of the second screw 117 causes the translational massage head 118 to move axially, and the eccentric structural member 119 actuates the translational massage head 118 to reciprocate along the guide groove 120.

[0056] Among them, reference Figure 9 As shown, the housing 100 of the mechanism is provided with a guide structure; the guide structure includes two guide protrusions 122 extending axially along the second screw 117. The two guide protrusions 122 are located on both sides of the extension direction of the guide groove 120 and fit against the side wall of the translation massage head 118 to limit the movement path of the translation massage head 118.

[0057] It should be noted that the translational massage mechanism 113 includes a second screw 117 and a translational massage head 118. The second screw 117 is connected by a threaded engagement with a threaded hole on the second gear 105, and an eccentric structural member 119 is provided at the end away from the collapsible assembly 106. The translational massage head 118 is provided with a guide groove 120, and the protrusion 121 on the eccentric structural member 119 is inserted into the guide groove 120. The technical principle is as follows: When the second gear 105 rotates, it drives the second screw 117 to extend and retract axially through threaded transmission, realizing the overall upward and downward movement of the translational massage head 118. Simultaneously, the rotational motion of the second screw 117 is transmitted to the eccentric structural component 119 at its end, causing its protrusion 121 to move within the guide groove 120 of the translational massage head 118. This converts the rotational motion into a lateral reciprocating oscillation or sliding motion of the translational massage head 118 along the guide groove 120, thus achieving a composite motion mode of axial forward and backward movement and lateral translation. This simulates real massage techniques such as pushing and kneading, enhancing the layering and comfort of the massage. To ensure smooth and controllable movement, the mechanism housing 100 is equipped with a guide structure. This guide structure includes two guide protrusions 122 extending axially along the second screw 117, symmetrically distributed on both sides of the translational massage head 118 and fitting against it, restricting its degree of freedom, preventing rotation or swaying, and forcing it to move only along a preset path. This design achieves both linear displacement and lateral oscillation simultaneously through a single screw drive. It features a compact structure, high transmission efficiency, and reliable guidance, effectively improving the precision and stability of translational massage.

[0058] It should be noted that the first screw 115 has a limiting structure at the end away from the massage device 102, and the second screw 117 has a limiting structure at the end away from the massage device 102. The limiting structures are used to prevent the first screw 115 and the second screw 117 from coming out of the threaded hole of the second gear 105.

[0059] Reference Figure 8 As shown, as an optional implementation, the eccentric structural member 119 is also provided with a clamping member 123 inserted into the protrusion 121, and the clamping member 123 and the eccentric structural member 119 clamp and move the massage head 118.

[0060] It should be noted that the clamping member 123 is designed to ensure that the translational massage head 118 can be smoothly retracted when the second screw 117 retracts axially.

[0061] As an optional implementation, the housing 100 of the mechanism has a mounting hole on the side opposite to the massage device 102; the collapsible assembly 106 abuts against the second gear 105 through the mounting hole.

[0062] It should be noted that the movement housing 100 is composed of a lower housing and an upper housing that interlock. The upper housing is used to install the massage device 102 and provide motion guidance, while the lower housing has mounting holes for assembling the collapsible assembly 106 from the rear end of the movement and pre-contacting it with the second gear 105. This structural design facilitates the individual replacement or adjustment of the collapsible assembly 106 during movement assembly or later maintenance, without disassembling the entire transmission system or removing the massage device 102, significantly improving assembly efficiency and maintenance convenience.

[0063] This application also provides a massage chair, including a massage chair body and the above-mentioned massage mechanism, the massage mechanism being installed in the massage chair body for massaging the user.

[0064] The massage chair provided in this application integrates the aforementioned massage mechanism with composite massage functions and active safety protection mechanism into the chair body. This not only achieves a multi-dimensional, three-dimensional massage effect combining rotation and translation, significantly improving the realism, comfort, and adaptability of the massage, but also automatically cuts off power transmission via a mechanical collapse component 106 in the event of accidental collision or external impact, allowing the massage heads to retract promptly and effectively avoiding safety risks such as squeezing or pinching. Furthermore, the massage mechanism is compact, highly efficient in transmission, and easy to maintain, which helps improve the overall space utilization and reliability of the chair. This massage chair is particularly suitable for use in homes and vehicles where safety and comfort are paramount, combining high performance and high safety to significantly enhance the user experience.

[0065] The above description is merely a preferred embodiment of this application and is not intended to limit this application. Various modifications and variations can be made to this application by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the protection scope of this application.

Claims

1. A massaging movement, characterized in that, The device includes a housing (100), a drive unit (101), and a massage device (102); the massage device (102) is installed on the side of the housing (100) closer to the user; the drive unit (101) includes a drive motor (103), a first gear (104), and a second gear (105) disposed within the housing (100); the first gear (104) is connected to the output end of the drive motor (103), and the second gear (105) is connected to the massage device (102). The connection includes the first gear (104) meshing with the second gear (105); it also includes a collapsible assembly (106) that abuts against the side of the second gear (105) away from the massage device (102); when the massage device (102) moves close to the core housing (100) under pressure, the second gear (105) squeezes the collapsible assembly (106), and the collapsible assembly (106) deforms to separate the second gear (105) from the first gear (104).

2. The massing movement according to claim 1, characterized in that, The collapse assembly (106) includes an energy-absorbing structural component (107), a base (108), and a support ring (109); the support ring (109) is sleeved on the rotating shaft of the second gear (105) and abuts against the side of the second gear (105) away from the massage device (102); one end of the energy-absorbing structural component (107) is connected to the base (108), and the other end is connected to the support ring (109); the base (108) is fixedly disposed on the side of the mechanism housing (100) away from the massage device (102).

3. The massing movement according to claim 2, characterized in that, The energy-absorbing structure (107) has at least two elastically bent portions (110) arranged axially spaced along the rotation axis.

4. The massing movement according to claim 2, wherein, There are multiple energy-absorbing structural members (107) and they are arranged circumferentially around the rotation axis of the second gear (105).

5. The massing movement according to claim 2, wherein, The collapse assembly (106) also includes a spring element (111), one end of which abuts against the support ring (109) and the other side of which abuts against the base (108).

6. A massing movement according to any one of claims 1 to 5, characterized in that, The massage device (102) includes two rotary massage mechanisms (112) and two translational massage mechanisms (113); the drive motor (103) includes two output worm gears (114) located on both sides of the drive motor (103); each output worm gear (114) has two first gears (104) on opposite sides; wherein, one first gear (104) drives one rotary massage mechanism (112) and the other first gear (104) drives one translational massage mechanism (113) to move.

7. The massing movement according to claim 6, characterized in that, The rotary massage mechanism (112) includes a first screw (115) and a rotary massage head (116); the first screw (115) is connected to a threaded hole on a second gear (105), and the end of the first screw (115) away from the collapsible assembly (106) is connected to the rotary massage head (116); the rotation of the second gear (105) causes the first screw (115) to move axially, and can drive the rotary massage head (116) to rotate.

8. The massing movement according to claim 6, characterized in that, The translational massage mechanism (113) includes a second screw (117) and a translational massage head (118); the second screw (117) is connected to a threaded hole on the second gear (105), and an eccentric structural member (119) is provided at the end of the second screw (117) away from the collapsible assembly (106); the translational massage head (118) is provided with a guide groove (120), and the eccentric structural member (119) is provided with a protrusion (121) inserted into the guide groove (120); the second screw (117) rotates to move the translational massage head (118) axially, and the eccentric structural member (119) moves the translational massage head (118) back and forth along the guide groove (120).

9. The massing movement according to claim 8, characterized in that, The housing (100) of the mechanism is provided with a guide structure; the guide structure includes two guide protrusions (122) extending axially along the second screw (117), the two guide protrusions (122) are located on both sides of the extension direction of the guide groove (120) and fit against the side wall of the translation massage head (118) to limit the movement path of the translation massage head (118).

10. The massing movement according to claim 8, characterized in that, The eccentric structural member (119) is also provided with a clamping member (123) inserted into the protrusion (121), and the clamping member (123) and the eccentric structural member (119) clamp the translational massage head (118).

11. The massage mechanism according to any one of claims 1-5 and 7-10, characterized in that, The housing (100) of the mechanism is provided with a mounting hole on the side opposite to the massage device (102); the collapsible assembly (106) abuts against the second gear (105) through the mounting hole.

12. A massage chair, characterized by, The device includes a massage chair body and a massage mechanism as described in any one of claims 1-11, wherein the massage mechanism is installed in the massage chair body for massaging the user.

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