Vehicle-mounted massage machine core

Abstract

This invention discloses a vehicle-mounted massage mechanism, including a frame, a kneading drive assembly, a kneading shaft, and massage arms. The frame is divided into a massage base and a collapsible base, which can move relative to each other via the collapsible assembly. The kneading drive assembly and the kneading shaft are mounted on the massage base, and the collapsible base is equipped with a striking shaft and a striking drive assembly. A striking linkage connects to the massage arms. At least one end of the kneading shaft is eccentrically connected to a swing plate, and the two ends of the swing plate are respectively hinged to a first massage arm and a second massage arm. The two massage arms are arranged at an angle and are hinged between them by a transmission linkage to achieve linkage between the two during collapsing or striking. The first massage arm is also hinged to the striking linkage. This invention drives the first massage arm with a single striking input, which in turn drives the second massage arm to strike in conjunction via the transmission linkage, reducing the number of parts. During collapsing, the two massage arms work together to press down via the transmission linkage, avoiding twisting and jamming, improving safety and reliability, and is suitable for installation in confined spaces such as vehicle seats.

Description

Technical Field

[0001] This invention relates to the field of in-vehicle massage equipment technology, and more particularly to an in-vehicle massage mechanism. Background Technology

[0002] Car massage mechanisms are typically installed inside car seats to provide occupants with kneading, tapping, and other massage functions. Existing car massage mechanisms generally employ separate kneading and tapping drive components to achieve the kneading and tapping movements of the massage arms. The kneading drive component rotates the kneading shaft, which, through an eccentric structure, drives the massage arms to perform kneading and oscillating movements. The tapping drive component rotates the tapping shaft, which, through an eccentrically driven tapping linkage, drives the massage arms to perform reciprocating tapping movements.

[0003] In massage mechanisms with two massage arms (e.g., left and right massage arms or upper and lower massage arms), the traditional tapping transmission method has the following shortcomings: To ensure that each massage arm receives tapping power independently, each massage arm often needs to be equipped with an independent tapping transmission mechanism, that is, to set up two tapping shafts (or two independent eccentric sections of a long shaft) and two sets of tapping connecting rods, which are respectively hinged to the corresponding massage arm. This "one-to-one" drive method results in a large number of parts, a bulky structure, and complex assembly, increasing manufacturing costs and the overall size of the mechanism.

[0004] On the other hand, to improve the safety of in-vehicle massage mechanisms, some products have begun to introduce a collapse protection mechanism. This involves dividing the frame into a massage base and a collapse seat, which can move relative to each other via a guide structure. When the massage arm is subjected to an abnormal impact (such as a vehicle collision), the collapse seat moves the striking components and other parts relative to the base, achieving collapse and avoidance. However, in existing collapse structures, there is a lack of linkage between the two massage arms. When an external force causes one massage arm to collapse, the other massage arm often fails to respond accordingly, severely affecting the smoothness and reliability of the collapse.

[0005] Therefore, it is necessary to provide a car massage mechanism that can achieve coordinated tapping of the two massage arms through a single tapping input, and can also ensure coordinated downward pressure and avoidance of the two massage arms during collapse. Summary of the Invention

[0006] The purpose of this invention is to overcome the shortcomings and deficiencies of the existing technology and to provide a vehicle-mounted massage mechanism.

[0007] To achieve the above objectives, the present invention provides the following technical solution: a vehicle-mounted massage mechanism, comprising a frame, a kneading drive assembly, a kneading shaft driven to rotate by the kneading drive assembly, and a massage arm connected to the kneading shaft to perform kneading actions. The frame includes a massage base and a collapsible seat. The massage base and the collapsible seat are guided and slidably engaged, and the two are connected to each other relatively separately or together via the collapsible assembly. When the massage arm is subjected to a force exceeding a set value, the massage arm presses down and collapses, causing the collapsible seat to slide relative to the massage base. The kneading shaft is mounted on the massage base; a striking shaft and a striking drive assembly for driving the striking shaft to rotate are rotatably mounted on the collapse seat; a striking link is eccentrically connected to the striking shaft, and the other end of the striking link is hinged to the massage arm; a swing plate is eccentrically connected to either end of the kneading shaft, and a first massage arm and a second massage arm are respectively hinged to both ends of the swing plate; the two massage arms are arranged at an angle and a transmission link is hinged between them to realize the linkage between the two during collapse or striking; the first massage arm is hinged to the striking link.

[0008] By adopting the above technical solution, the structure realizes the linkage of the two massage arms in striking and collapsing mode: In striking mode, the striking linkage drives the first massage arm to swing, and drives the second massage arm to strike synchronously or alternately through the transmission linkage. There is no need to set a separate striking shaft and striking linkage for each massage arm, which simplifies the transmission system; In collapsing mode, when the first massage arm is pressed down by external force, the transmission linkage also transmits the pressing motion to the second massage arm, so that the two massage arms collapsing in linkage. This avoids the transmission linkage twisting or structural damage caused by one side collapsing while the other side remains in place, and improves the overall coordination and safety during collapse. Furthermore, the two massage arms are arranged at an angle and positioned on either side of the swing plate. Compared to the traditional design where the massage arms are directly mounted on the kneading shaft, this design features a larger angle between the two massage arms, resulting in a lower vertical height at the midpoint of the line connecting the two arms. When this massage mechanism is installed inside a car seat, the lower vertical height means a thinner seat is required, facilitating a slimmer seat design. It also avoids excessively increasing the thickness of the seat back to accommodate the massage arms, improving seating comfort and the flexibility of seat layout. Simultaneously, the angled arrangement of the two massage arms better conforms to the curve of the human back, further enhancing massage comfort.

[0009] In a preferred embodiment of the present invention, the first massage arm is hinged to the upper part of the swing plate to form a first hinge end, and the second massage arm is hinged to the lower part of the swing plate to form a second hinge end; the transmission link is hinged to the first massage arm and the second massage arm respectively to form a third hinge end and a fourth hinge end; the third hinge end is located below the first hinge end, and the fourth hinge end is located above the second hinge end; the transmission link is inclined; a movable pin is provided at the third hinge end, and an arc-shaped movable groove is provided on the swing plate to limit the swing path of the movable pin.

[0010] By adopting the above technical solution, this optimized layout allows the first massage arm to rotate clockwise around its first hinge end when the striking linkage presses down on it. The movable pin at the third hinge end moves along the arc-shaped movable groove, forcing the transmission linkage to move towards the second massage arm. This, in turn, drives the second massage arm to rotate counterclockwise around its second hinge end to complete the downward striking or collapsing motion. The cooperation between the arc-shaped movable groove and the movable pin ensures the freedom of movement of the transmission linkage while limiting excessive oscillation and preventing the mechanism from jamming. This structure allows the two massage arms to produce alternating or synchronous striking rhythms, enriching the massage modes.

[0011] As a preferred embodiment of the present invention, the lower end of the swing plate is provided with a ball joint connecting rod, and the massage base is provided with a swing groove for the ball joint connecting rod to swing.

[0012] By adopting the above technical solution, since the swing plate and the kneading shaft are eccentrically connected, the rotation of the kneading shaft will inevitably drive the swing plate to reciprocate, and then the kneading action will be realized through the massage arms hinged at both ends of the swing plate; the ball joint and the swing groove cooperate to provide stable and flexible support for the swing of the swing plate, allowing the swing plate to make multi-directional adaptive swings during the kneading process, so that the two massage arms can more flexibly adapt to the curve of the human body, and improve the fit and comfort of the kneading.

[0013] As a preferred embodiment of the present invention, the kneading shaft includes an eccentric shaft that is eccentrically connected to the swing plate, and a movable bushing is provided on the eccentric shaft; the swing plate is provided with a mounting hole that matches the shape of the movable bushing, and the swing plate is circumferentially fixed relative to the movable bushing; the end of the eccentric shaft is provided with a fastening screw to prevent the swing plate from disengaging from the eccentric shaft.

[0014] By adopting the above technical solution, the rotational motion of the kneading shaft is reliably converted into the reciprocating oscillation of the swing plate through the cooperation of the eccentric shaft and the movable bushing. The structure is simple and the transmission is direct. The swing plate and the movable bushing are circumferentially fixed (e.g., connected by a key). The fastening screws effectively limit the axial movement of the swing plate along the eccentric shaft, preventing the swing plate from accidentally disengaging during operation, thus improving safety and connection reliability.

[0015] As a preferred embodiment of the present invention, the two ends of the striking shaft are respectively eccentrically connected to the striking linkage; the first massage arm and the second massage arm constitute a set of massage units, and two sets of massage units are provided, with the two sets of massage units respectively disposed at both ends of the kneading shaft; the kneading drive assembly includes a kneading motor, a transmission shaft driven by the kneading motor, a worm gear, and a worm; the transmission shaft is perpendicular to the kneading shaft and the worm is provided on the transmission shaft, and the kneading shaft is provided with a worm gear meshing with the worm.

[0016] By adopting the above technical solution, a dual-sided massage function is achieved, with a first massage arm and a second massage arm on each side, which can simultaneously provide symmetrical massage to the user's back or waist, expanding the massage coverage area. The two ends of the tapping shaft drive two sets of tapping linkages simultaneously, ensuring the high synchronization of the tapping actions on both sides without the need for additional control. The layout of the drive shaft perpendicular to the kneading shaft makes the overall structure more compact, facilitating installation in limited spaces such as car seats. At the same time, the two massage units share the same kneading drive component and tapping drive component, further reducing the number of parts and lowering costs.

[0017] In a preferred embodiment of the present invention, the collapsible assembly includes an elastic clamping plate, a movable collapsible block, a screw, and a collapsible drive motor. One of the elastic clamping plate and the movable collapsible block is fixed to the massage base, and the other is fixed to the collapsible base. The elastic clamping plate has a locking groove for accommodating the movable collapsible block, and one end of the locking groove has an elastic clamping opening for the movable collapsible block to disengage from or enter the locking groove. The screw is threadedly connected to the movable collapsible block, and the screw is driven to rotate by the collapsible drive motor. The movable collapsible block can slide within the frame under the drive of the screw. When the massage arm is subjected to a force exceeding a set value, the massage arm presses down and collapses, driving the collapsible base to move relative to the massage base via the striking linkage, thereby causing the movable collapsible block to overcome the clamping force of the elastic clamping opening and disengage from the locking groove.

[0018] By adopting the above technical solution, a resettable snap-fit ​​collapse structure is formed by setting up an elastic clamping plate, a moving collapse block, a screw, and a collapse drive motor. When the force on the massage arm exceeds the set value, the moving collapse block overcomes the clamping force of the elastic clamp and disengages from the locking groove (during this process, the screw and the moving collapse block move as a whole), achieving collapse and avoidance. When restoration is required, the collapse drive motor first drives the screw to rotate, causing the moving collapse block to overcome the entry resistance of the elastic clamp and slide back into the locking groove; then the motor reverses. Since the moving collapse block is limited by the side wall of the locking groove and cannot be axially disengaged, and the force required for the moving collapse block to disengage from the locking groove is much greater than the force required to enter the locking groove (the elastic clamp itself causes different entry and exit resistance), when the screw reverses, the moving collapse block is stationary relative to the screw, and instead drives the screw, together with the collapse drive motor and the collapse seat, to move towards the massage base, thereby pulling the collapse seat back to the initial convergence position. The entire process does not require the replacement of any parts, realizing fully automatic electric reset, greatly reducing maintenance costs and user waiting time. In addition, the striking linkage directly connects the massage arm and the collapse seat. When the collapse occurs, the massage arm presses down and drives the entire collapse seat to move through the striking linkage. This allows the transmission components such as the striking shaft and striking linkage to move synchronously with the collapse seat, avoiding transmission interference or jamming caused by changes in relative position, and ensuring the smoothness and safety of the collapse process.

[0019] As a preferred embodiment of the present invention, the elastic clamp includes a U-shaped storage portion and two elastic deformation portions. The U-shaped storage portion has two opposing storage baffles. The two elastic deformation portions are respectively connected to the outer ends of the two storage baffles, and the elastic clamp is formed between the two elastic deformation portions.

[0020] By adopting the above technical solution, the U-shaped storage part provides a stable storage space, while the two elastic deformation parts give the elastic clamp appropriate clamping stiffness and elastic deformation capability. This ensures that the moving collapse block is reliably locked under normal conditions, while it can be smoothly opened and released under overload conditions, realizing the snap-on repeatable release and locking function. The structure is simple and the clamping force is stable.

[0021] As a preferred embodiment of the present invention, each of the elastic deformation portions includes a limiting segment connected to the receiving baffle and an inclined guide segment connected to the outer end of the limiting segment. The limiting segment and the inclined guide segment form a V-shaped structure, and the two inclined guide segments extend in opposite directions at an inclination. The limiting segment is used to abut against the moving collapse block to restrict the moving collapse block from disengaging from the locking groove. The moving collapse block has an overall T-shaped structure, and its head ends are respectively provided with conical surfaces that are adapted to the inclination of the inclined guide segments.

[0022] By adopting the above technical solution, on the one hand, during the reset process, when the moving collapsible block moves into the locking groove under the drive of the screw, the conical surface at the front end of its head contacts the inclined guide section. The axial thrust is converted into radial spreading force by using the inclined plane principle, so that the elastic deformation part gradually opens and guides the moving collapsible block to slide smoothly into the locking groove, reducing the load of the motor-driven reset and improving the reset success rate. On the other hand, during the collapsible release process, the moving collapsible block does not rely on the conical surface to spread open the elastic clamp, but directly and rigidly pushes open the limiting section with the rear end of its head (i.e., the back of the T-shaped head). Since the limiting section is usually a vertical surface or has only a slight tilt angle, there is no inclined plane assist effect. Therefore, the resistance that the moving collapse block needs to overcome to disengage from the locking groove is much greater than the resistance when it enters the locking groove. This ensures that even if the massage mechanism is subjected to a certain amount of vibration or impact under normal working conditions, the moving collapse block will not accidentally come out. Only when the massage arm is subjected to a large external force (such as a collision) exceeding the set value can the collapse be achieved by forcibly opening the limiting section at the rear end of the head. This precisely sets the collapse trigger threshold, which avoids false triggering and ensures reliable collapse in emergency situations.

[0023] In a preferred embodiment of the present invention, the collapsible drive motor is fixed on the collapsible seat, the screw is connected to the output end of the collapsible drive motor, and the screw passes through the elastic clamp; when the collapsible seat moves relative to the massage base, the screw slides relative to the elastic clamp as the collapsible seat moves.

[0024] By adopting the above technical solution, this layout integrates the drive part of the entire collapsible assembly with the collapsible seat, avoiding cable entanglement or pulling damage caused by the relative movement between the motor and the collapsible seat; during collapse, the screw slides relative to the elastic clamping plate as the collapsible seat moves, without generating resistance to the collapse movement, ensuring a rapid response to collapse; during reset, the motor drives the screw to rotate, and since the moving collapsible block is threadedly connected to the screw and the elastic clamping plate is stationary, the rotation of the screw can drive the moving collapsible block to move axially and re-enter the locking groove. Attached Figure Description

[0025] Figure 1 This is a schematic diagram of the normal working state of the massage mechanism of the present invention; Figure 2 This is a schematic diagram of the internal structure of the massage mechanism of the present invention; Figure 3 This is a schematic diagram of the bottom structure of the massage mechanism of the present invention; Figure 4 This is a schematic diagram of the kneading shaft, massage arm, and tapping drive assembly in this invention. Figure 5 This is a schematic diagram of the structure of the kneading shaft and massage arm in this invention; Figure 6This is a schematic diagram of the elastic clamping plate in this invention; Figure 7 This is a schematic diagram of the structure of a pair of massage arms and a swing plate in this invention; Figure 8 This is a schematic diagram of the structure of the first massage arm and the swing plate in this invention; Figure 9 This is a schematic diagram of the swing plate in this invention; Figure 10 This is a schematic diagram of the kneading shaft in this invention.

[0026] Reference numerals: 1. Frame; 2. Kneading shaft; 3. Cover plate; 4. Massage base; 5. Collapse seat; 6. Striking shaft; 7. Striking linkage; 8. Elastic clamp; 9. Moving collapse block; 10. Screw; 11. Collapse drive motor; 12. Locking groove; 13. Elastic clamp; 14. U-shaped storage section; 15. Elastic deformation section; 16. Storage baffle; 17. Limiting section; 18. Inclined guide section; 19. Conical surface; 20. Swing 21. Moving plate; 22. First massage arm; 23. Second massage arm; 24. Transmission link; 25. First hinge end; 26. Second hinge end; 27. Third hinge end; 28. Fourth hinge end; 29. ​​Arc-shaped movable groove; 30. Movable pin; 31. Ball joint link; 32. Swing groove; 33. Movable bushing; 34. Fastening screw; 35. Eccentric shaft; 36. Kneading motor; 37. Transmission shaft; 38. Worm gear; 39. Worm. Detailed Implementation

[0027] To make the technical means, creative features, objectives and effects of this invention easier to understand, the invention will be further described below in conjunction with specific embodiments.

[0028] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "installed," "equipped with," "connected," etc., should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0029] like Figure 1-10The illustrated in-vehicle massage mechanism includes a frame 1, a kneading drive assembly, a kneading shaft 2 driven to rotate by the kneading drive assembly, and a massage arm connected to the kneading shaft 2 to perform kneading actions. The frame 1 includes a massage base 4 and a collapsible seat 5. The massage base 4 and the collapsible seat 5 are guided and slidably engaged (guide rods pass through both ends of the massage base 4, and the collapsible seat 5 is slidably mounted on the guide rods on both sides), and the two are connected relative to each other or together through the collapsible assembly. When the massage arm is subjected to a force exceeding a set value, the massage arm presses down and collapses, causing the collapsible seat 5 to slide relative to the massage base 4. The kneading drive assembly and the kneading shaft 2 are disposed on the massage base 4. A striking shaft 6 and a striking drive assembly for driving the striking shaft 6 to rotate are rotatably mounted on the collapse seat 5 (directly driven by a striking motor, or driven by a belt or pulley; this is existing technology and therefore not described in detail). A striking link 7 is eccentrically connected to the striking shaft 6, and the other end of the striking link 7 is hinged to the massage arm. A swing plate 20 is eccentrically connected to either end of the kneading shaft 2, and a first massage arm 21 and a second massage arm 22 are respectively hinged to both ends of the swing plate 20. The two massage arms are arranged at an angle and are hinged to each other by a transmission link 23 to achieve linkage between them during collapse or striking. The first massage arm 21 is hinged to the striking link 7.

[0030] This structure enables the coordinated striking and collapsing of the two massage arms: In striking mode, the striking link 7 drives the first massage arm 21 to swing, which in turn drives the second massage arm 22 to strike synchronously or alternately via the transmission link 23. This eliminates the need for separate striking shafts 6 and striking links 7 for each massage arm, simplifying the transmission system. In collapsing mode, when the first massage arm 21 is pressed down by external force, the transmission link 23 also transmits the downward motion to the second massage arm 22, causing the two massage arms to collapsing in tandem. This avoids the transmission link 23 from twisting or structural damage caused by one side collapsing while the other side remains in place, improving the overall coordination and safety during collapse. Furthermore, the two massage arms are arranged at an angle and positioned on either side of the swing plate 20. Compared to the traditional design where the massage arms are directly mounted on the kneading shaft 2, this design features a larger angle between the two massage arms, resulting in a lower vertical height at the midpoint of the line connecting the two massage arms. When this massage mechanism is installed inside a car seat, the lower vertical height means a thinner seat is required, which is beneficial for a slimmer seat design. It also avoids excessively increasing the thickness of the seat back to accommodate the massage arms, improving seating comfort and the flexibility of seat layout. Simultaneously, the angled arrangement of the two massage arms better conforms to the curve of the human back, further enhancing massage comfort.

[0031] The first massage arm 21 is hinged to the upper part of the swing plate 20 to form a first hinge end 24, and the second massage arm 22 is hinged to the lower part of the swing plate 20 to form a second hinge end 25; the transmission link 23 is hinged to the first massage arm 21 and the second massage arm 22 respectively to form a third hinge end 26 and a fourth hinge end 27; the third hinge end 26 is located below the first hinge end 24, and the fourth hinge end 27 is located above the second hinge end 25; the transmission link 23 is inclined; a movable pin 29 is provided at the third hinge end 26, and an arc-shaped movable groove 28 is provided on the swing plate 20 to limit the swing path of the movable pin 29.

[0032] In this embodiment, each hinge end (including the first hinge end 24, the second hinge end 25, the third hinge end 26, the fourth hinge end 27, and the hinge points at both ends of the transmission link 23) can use a pin as the hinge element. Specifically, pin holes are opened on the two components that need to be hinged, and the relative rotational connection between the two is achieved by inserting a pin. The pin can be made of metal or wear-resistant plastic, and its end can be equipped with a snap ring, cotter pin, or riveting to prevent axial detachment. For the sake of simplicity, this specification assumes that each hinge end is connected by a pin and will not elaborate on each one.

[0033] This optimized layout allows the first massage arm 21 to rotate clockwise around the first hinge end 24 when the striking link 7 presses down. This rotation, via the movable pin 29 at the third hinge end 26, moves along the arc-shaped movable groove 28, forcing the transmission link 23 to move towards the second massage arm 22. This, in turn, drives the second massage arm 22 to rotate counterclockwise around the second hinge end 25, completing the downward striking or collapsing motion. The cooperation between the arc-shaped movable groove 28 and the movable pin 29 ensures the freedom of movement of the transmission link 23 while limiting its excessive oscillation, preventing the mechanism from jamming. This structure allows the two massage arms to produce alternating or synchronous striking rhythms, enriching the massage modes.

[0034] The lower end of the swing plate 20 is provided with a ball joint 30, and the massage base 4 is provided with a swing groove 31 for the ball joint 30 to swing. Since the swing plate 20 is eccentrically connected to the kneading shaft 2, the rotation of the kneading shaft 2 will inevitably drive the swing plate 20 to reciprocate, thereby realizing the kneading action through the massage arms hinged at both ends of the swing plate 20; the ball joint 30 and the swing groove 31 are movably matched, providing stable and flexible support for the swing of the swing plate 20, allowing the swing plate 20 to swing adaptively in multiple directions during the kneading process, so that the two massage arms can more flexibly adapt to the human body curve, improving the fit and comfort of the kneading.

[0035] The kneading shaft 2 includes an eccentric shaft 34 eccentrically connected to the swing plate 20, and a movable bushing 32 is fitted over the eccentric shaft 34. The swing plate 20 has mounting holes that fit the shape of the movable bushing 32, and the swing plate 20 is circumferentially fixed relative to the movable bushing 32. A fastening screw 33 is provided at the end of the eccentric shaft 34 to prevent the swing plate 20 from detaching from the eccentric shaft 34. Through the cooperation of the eccentric shaft 34 and the movable bushing 32, the rotational motion of the kneading shaft 2 is reliably converted into the reciprocating oscillation of the swing plate 20. The structure is simple and the transmission is direct. The swing plate 20 and the movable bushing 32 are circumferentially fixed (e.g., connected by a key). The fastening screw 33 effectively restricts the axial movement of the swing plate 20 along the eccentric shaft 34, preventing the swing plate 20 from accidentally detaching during operation, thus improving safety and connection reliability. It should be noted that in this application, the movable bushing 32 and the eccentric shaft 34 form an eccentric transmission connection, thereby converting the rotational motion of the kneading shaft 2 into the reciprocating oscillation of the swing plate 20, ultimately driving the massage arm to achieve the kneading action. This eccentric transmission structure and its working principle for achieving the kneading function have been disclosed in several prior patent applications for massage mechanism in this field, and are common knowledge in the field. Therefore, this application will not elaborate on this in detail, but will focus on the improvement of the collapsible component and the linkage striking transmission mechanism.

[0036] The two ends of the striking shaft 6 are respectively eccentrically connected to the striking linkage 7; the first massage arm 21 and the second massage arm 22 constitute a set of massage units, and there are two sets of massage units, which are respectively set at both ends of the kneading shaft 2; the kneading drive assembly includes a kneading motor 35, a transmission shaft 36 driven by the kneading motor 35, a worm gear 37 and a worm 38; the transmission shaft 36 is perpendicular to the kneading shaft 2 and the worm 38 is provided on the transmission shaft 36, and the worm gear 37 meshing with the worm 38 is provided on the kneading shaft 2.

[0037] The device achieves dual-sided massage functionality, with a first massage arm 21 and a second massage arm 22 on each side, enabling simultaneous symmetrical massage of the user's back or waist, thus expanding the massage coverage area. The two ends of the tapping shaft 6 simultaneously drive two sets of tapping linkages 7, ensuring the high synchronization of the tapping actions on both sides without the need for additional control. The layout of the drive shaft 36 perpendicular to the kneading shaft 2 makes the overall structure more compact, facilitating installation in limited spaces such as car seats. At the same time, the two massage units share the same kneading drive component and tapping drive component, further reducing the number of parts and lowering costs.

[0038] The collapsible assembly includes an elastic clamping plate 8, a movable collapsible block 9, a screw 10, and a collapsible drive motor 11. One of the elastic clamping plate 8 and the movable collapsible block 9 is fixed to the massage base 4, and the other is fixed to the collapsible seat 5. The elastic clamping plate 8 is provided with a locking groove 12 for accommodating the movable collapsible block 9, and one end of the locking groove 12 is provided with an elastic clamping opening 13 for the movable collapsible block 9 to disengage from or enter the locking groove 12. The screw 10 is threadedly connected to the movable collapsible block 9, and the screw 10 is driven to rotate by the collapsible drive motor 11. The movable collapsible block 9 can slide within the frame 1 under the drive of the screw 10. When the massage arm is subjected to a force exceeding a set value, the massage arm presses down and collapses, and through the striking linkage 7, it drives the collapsible seat 5 to move relative to the massage base 4, thereby causing the movable collapsible block 9 to overcome the clamping force of the elastic clamping opening 13 and disengage from the locking groove 12.

[0039] It should be noted that the thickness dimension of the internal space of the frame 1 is used to limit the movement of the collapsible block 9. Specifically, the frame 1 includes a cover plate 3 located on the collapsible seat 5 and the massage base 4, so that the movement of the collapsible block 9 is confined within the flat space between the cover plate 3 and the collapsible seat 5, and between the cover plate 3 and the massage base 4, thereby preventing its rotation by using the clamping effect of the upper and lower planes. Alternatively, one or more guide rods (guide posts) are set parallel to the screw 10 inside the frame 1, and guide holes that cooperate with the guide rods are opened on the movement of the collapsible block 9. When the screw 10 rotates, the movement of the collapsible block 9 can only move axially under the constraint of the guide rods and cannot rotate. Regardless of the method, as long as the movement of the collapsible block 9 can be guided and slid within the frame 1, it is acceptable; this is not the focus of this application.

[0040] The elastic clamping plate 8, the movable collapsible block 9, the screw 10, and the collapsible drive motor 11 form a resettable snap-fit ​​collapsible structure. When the massage arm is subjected to force exceeding the set value, the movable collapsible block 9 overcomes the clamping force of the elastic clamping jaw 13 and disengages from the locking groove 12 (during this process, the screw 10 and the movable collapsible block 9 move as a whole), thus achieving collapsible avoidance. When restoration is required, the collapse drive motor 11 first drives the screw 10 to rotate, causing the moving collapse block 9 to overcome the entry resistance of the elastic clamp 13 and slide back into the locking groove 12. Then, the motor reverses direction. Since the moving collapse block 9 is limited by the side wall of the locking groove 12 and cannot axially disengage, and the force required for the moving collapse block 9 to disengage from the locking groove 12 is much greater than the force required to enter the locking groove 12 (due to the different entry and exit resistance caused by the structure of the elastic clamp 13), the moving collapse block 9 remains stationary relative to the screw 10 when the screw 10 reverses direction. Instead, it drives the screw 10, along with the collapse drive motor 11 and the collapse seat 5, to move towards the massage base 4, thereby pulling the collapse seat 5 back to its initial convergence position. The entire process requires no replacement of any parts, achieving fully automatic electric reset, greatly reducing maintenance costs and user waiting time. In addition, the striking link 7 is directly connected to the massage arm and the collapse seat 5. When the massage arm presses down, it drives the entire collapse seat 5 to move through the striking link 7, so that the transmission components such as the striking shaft 6 and the striking link 7 move synchronously with the collapse seat 5, avoiding transmission interference or jamming caused by relative position changes, and ensuring the smoothness and safety of the collapse process.

[0041] The elastic clamp 8 includes a U-shaped storage portion 14 and two elastic deformation portions 15. The U-shaped storage portion 14 has two opposing storage baffles 16. The two elastic deformation portions 15 are respectively connected to the outer ends of the two storage baffles 16, and the elastic clamping opening 13 is formed between the two elastic deformation portions 15.

[0042] The U-shaped storage section 14 provides a stable storage space, while the two elastic deformation sections 15 give the elastic clamp 13 appropriate clamping stiffness and elastic deformation capability. This ensures that the moving collapsible block 9 is reliably locked under normal conditions, while it can be smoothly opened and released under overload conditions, realizing the snap-on repeatable release and locking function. The structure is simple and the clamping force is stable.

[0043] Each of the elastic deformation portions 15 includes a limiting section 17 connected to the receiving baffle 16 and an inclined guide section 18 connected to the outer end of the limiting section 17. The limiting section 17 and the inclined guide section 18 form a V-shaped structure, and the two inclined guide sections 18 extend in opposite directions at an inclination. The limiting section 17 is used to abut against the moving collapse block 9 to prevent the moving collapse block 9 from disengaging from the locking groove 12. The moving collapse block 9 has an overall T-shaped structure, and its head ends are respectively provided with conical surfaces 19 that are adapted to the slope of the inclined guide section 18.

[0044] On the one hand, during the reset process, when the moving collapsible block 9 moves into the locking groove 12 under the drive of the screw 10, the conical surface 19 at the front end of its head contacts the inclined guide section 18. The axial thrust is converted into radial spreading force by using the inclined plane principle, so that the elastic deformation part 15 gradually opens and guides the moving collapsible block 9 to slide smoothly into the locking groove 12, which reduces the load of the motor-driven reset and improves the reset success rate. On the other hand, during the collapsible release process, the moving collapsible block 9 does not rely on the conical surface 19 to spread open the elastic clamp 13, but directly and rigidly pushes open the limiting section 17 with the rear end of its head (i.e., the back of the T-shaped head). Since the limiting section 17 is usually a vertical surface or has only a slight tilt angle, there is no inclined surface assist effect. Therefore, the resistance that the moving collapse block 9 needs to overcome to disengage from the locking groove 12 is much greater than the resistance when it enters the locking groove 12. This ensures that even if the massage mechanism is subjected to a certain vibration or impact under normal working conditions, the moving collapse block 9 will not accidentally come out. Only when the massage arm is subjected to a large external force (such as a collision) exceeding the set value can the limit section 17 be forcibly opened by the rear end of the head to achieve collapse. This accurately sets the collapse trigger threshold, which avoids false triggering and ensures reliable collapse in emergency situations.

[0045] The collapsible drive motor 11 is fixed to the collapsible seat 5, and the screw 10 is connected to the output end of the collapsible drive motor 11, and the screw 10 passes through the elastic clamp 8. When the collapsible seat 5 moves relative to the massage base 4, the screw 10 slides relative to the elastic clamp 8 as the collapsible seat 5 moves. This arrangement integrates the drive part of the entire collapsible assembly with the collapsible seat 5, avoiding cable entanglement or pulling damage caused by the relative movement between the motor and the collapsible seat 5. During collapsing, the screw 10 slides relative to the elastic clamp 8 as the collapsible seat 5 moves, without generating resistance to the collapsing movement, ensuring a rapid response to the collapsing. During reset, the motor drives the screw 10 to rotate. Since the moving collapsible block 9 is threadedly connected to the screw 10 and the elastic clamp 8 is stationary, the rotation of the screw 10 can drive the moving collapsible block 9 to move axially and re-enter the locking groove 12.

[0046] The foregoing has shown and described the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The embodiments and descriptions in the specification are merely preferred examples and are not intended to limit the invention. Various changes and modifications can be made to the invention without departing from its spirit and scope, and all such changes and modifications fall within the scope of the present invention as defined by the appended claims and their equivalents.

Claims

1. A car-mounted massage mechanism, characterized in that: The device includes a frame, a kneading drive assembly, a kneading shaft driven to rotate by the kneading drive assembly, and a massage arm connected to the kneading shaft to perform kneading actions. The frame includes a massage base and a collapsible seat. The massage base and the collapsible seat are guided and slidably engaged, and the two are connected relative to each other or together through the collapsible assembly. When the force on the massage arm exceeds a set value, the massage arm presses down and collapses, causing the collapsible seat to slide relative to the massage base. The kneading drive assembly and the kneading shaft are disposed on the massage base. A striking shaft and a striking drive assembly for driving the striking shaft to rotate are rotatably mounted on the collapse seat. A striking link is eccentrically connected to the striking shaft, and the other end of the striking link is hinged to the massage arm. A swing plate is eccentrically connected to either end of the kneading shaft, and a first massage arm and a second massage arm are respectively hinged to both ends of the swing plate. The two massage arms are arranged at an angle and are hinged to each other by a transmission link to achieve linkage between them during collapse or striking. The first massage arm is hinged to the striking link.

2. The vehicle-mounted massage mechanism according to claim 1, characterized in that: The first massage arm is hinged to the upper part of the swing plate to form a first hinge end, and the second massage arm is hinged to the lower part of the swing plate to form a second hinge end; the transmission link is hinged to the first massage arm and the second massage arm respectively to form a third hinge end and a fourth hinge end; the third hinge end is located below the first hinge end, and the fourth hinge end is located above the second hinge end; the transmission link is inclined; a movable pin is provided at the third hinge end, and an arc-shaped movable groove is provided on the swing plate to limit the swing path of the movable pin.

3. The vehicle-mounted massage mechanism according to claim 1 or 2, characterized in that: The lower end of the swing plate is provided with a ball joint, and the massage base is provided with a swing groove for the ball joint to swing.

4. The vehicle-mounted massage mechanism according to claim 1 or 2, characterized in that: The kneading shaft includes an eccentric shaft that is eccentrically connected to the swing plate, and a movable bushing is provided on the eccentric shaft; the swing plate is provided with mounting holes that are adapted to the shape of the movable bushing, and the swing plate is circumferentially fixed relative to the movable bushing; the end of the eccentric shaft is provided with a fastening screw to prevent the swing plate from disengaging from the eccentric shaft.

5. The vehicle-mounted massage mechanism according to claim 1, characterized in that: The two ends of the striking shaft are respectively eccentrically connected to the striking linkage; the first massage arm and the second massage arm constitute a set of massage units, and there are two sets of massage units, which are respectively set at both ends of the kneading shaft; the kneading drive assembly includes a kneading motor, a transmission shaft driven by the kneading motor, a worm gear, and a worm; the transmission shaft is perpendicular to the kneading shaft and the worm is provided on the transmission shaft, and the kneading shaft is provided with a worm gear that meshes with the worm.

6. The vehicle-mounted massage mechanism according to claim 1, characterized in that: The collapsible assembly includes an elastic clamping plate, a movable collapsible block, a screw, and a collapsible drive motor. One of the elastic clamping plate and the movable collapsible block is fixed to the massage base, and the other is fixed to the collapsible base. The elastic clamping plate has a locking groove for accommodating the movable collapsible block, and one end of the locking groove has an elastic clamping jaw for the movable collapsible block to disengage from or enter the locking groove. The screw is threadedly connected to the movable collapsible block, and the screw is driven to rotate by the collapsible drive motor. The movable collapsible block can slide within the frame under the drive of the screw. When the massage arm is subjected to a force exceeding a set value, the massage arm presses down and collapses, and through the striking linkage, it drives the collapsible base to move relative to the massage base, thereby causing the movable collapsible block to overcome the clamping force of the elastic clamping jaw and disengage from the locking groove.

7. The vehicle-mounted massage mechanism according to claim 6, characterized in that: The elastic clamp includes a U-shaped storage portion and two elastic deformation portions. The U-shaped storage portion has two opposing storage baffles. The two elastic deformation portions are respectively connected to the outer ends of the two storage baffles, and the elastic clamp is formed between the two elastic deformation portions.

8. The in-vehicle massage mechanism according to claim 7, characterized in that: Each of the elastic deformation portions includes a limiting section connected to the receiving baffle and an inclined guide section connected to the outer end of the limiting section. The limiting section and the inclined guide section form a V-shaped structure, and the two inclined guide sections extend in opposite directions at an inclination. The limiting section is used to abut against the moving collapse block to prevent the moving collapse block from disengaging from the locking groove. The moving collapse block has an overall T-shaped structure, and its head ends are respectively provided with conical surfaces that are adapted to the inclination of the inclined guide section.

9. The vehicle-mounted massage mechanism according to claim 6, characterized in that: The collapsible drive motor is fixed on the collapsible seat, the screw is connected to the output end of the collapsible drive motor, and the screw passes through the elastic clamp; when the collapsible seat moves relative to the massage base, the screw slides relative to the elastic clamp as the collapsible seat moves.

Images