Massage machine core with crumple structure

Abstract

The invention discloses a massage machine core with a crumple structure, which comprises a rack, a kneading driving assembly, a kneading shaft and at least one group of massage assemblies, and is characterized in that each massage assembly comprises massage arms arranged at two ends of the kneading shaft, and the massage arms are in eccentric transmission connection with the kneading shaft; a crumple mechanism located below the massage arm is arranged on the rack; the crumple mechanism comprises a guide rod, a movable seat, a sliding sleeve, a buckle plate, a connecting rod and a tension spring; the guide rod is connected to the machine frame, the movable seat is connected to the guide rod, and the guide rod is sleeved with the sliding sleeve in a sliding mode. The buckle plate is hinged to the sliding sleeve and can swing relative to the sliding sleeve; two ends of the connecting rod are respectively hinged with the buckle plate and the corresponding massage arm; the two ends of the tension spring are connected to the buckle plate and the movable seat respectively, and the elasticity drives the buckle plate to abut against or be buckled with the movable seat. When the downward impact force borne by the massage arm exceeds the pre-tightening force of the tension spring, the massage arm collapses. The crumple function is deeply integrated in the massage arm supporting structure, the structure is compact, triggering is direct and reliable, and resetting can be achieved after crumple.

Description

Technical Field

[0001] This invention relates to the field of automotive parts technology, and in particular to a massage mechanism with a collapsible structure. Background Technology

[0002] With the development of intelligent cockpits in automobiles, massage functions integrated into seats have become an important feature for enhancing driving and riding comfort. In-vehicle massage mechanisms typically use motors to drive massage arms and rollers to simulate kneading, scraping, and other movements to massage the occupant's back.

[0003] However, in the event of a vehicle collision or other accident, if the massage rollers protruding from the seat surface remain in a rigid posture, they pose a potential risk of secondary injury to occupants. Therefore, designing an effective collapsible safety structure for in-vehicle massage mechanisms has become a pressing technical problem in this field. Currently, existing technical solutions for achieving safe collapsibility of massage mechanisms mainly involve the following two approaches, but both have significant shortcomings: Firstly, as disclosed in patent application CN119749375A, a collapsible structure for a linear actuator is provided. This solution connects an independent module consisting of clamping plates and locking elastic elements in series at the output end of the linear actuator. When subjected to axial impact force, the actuator output shaft, along with the movable block, slides as a whole to buffer the impact. However, this solution has limitations in its protection target and mechanism of action. It is essentially an overload protection mechanism for the linear actuator itself, and the subsequent path of its collapsible action (movable seat sliding) is not clearly defined or optimized for directly driving the massage execution components (such as massage arms and massage wheels) to perform avoidant collapsible action. Therefore, this solution fails to reveal or solve the core problem of how to efficiently and reliably convert the axial sliding of the actuator into a collapsible motion of the massage wheel away from the occupant, and its directness and effectiveness in preventing massage wheels from causing harm to the human body are insufficient.

[0004] Secondly, the solution disclosed in patent application CN117598895A employs an active triggering approach. This solution uses an explosive component to cut off the screw drive upon receiving a collision signal, releasing the pre-compressed elastic element and thus driving the massage head to retract rapidly. While this solution can achieve active collapse of the massage head, it relies on high-cost explosive components and a complex electronic control system. It is a "one-time" destructive action, cannot automatically reset after collapse, has high maintenance and replacement costs, and faces challenges in the long-term reliability and resistance to false triggering of the system.

[0005] Currently, the industry lacks a mechanical solution that can deeply embed the collapsing function into the transmission and support chain of the massage mechanism, passively, directly, and effectively convert the impact applied to the massage arm into the collapsing motion of the massage wheel without the need for complex external electronic control intervention, and can be easily reset and reused after the impact. 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 massage mechanism with a collapsible structure.

[0007] To achieve the above objectives, the present invention provides the following technical solution: a massage mechanism with a collapsible structure, comprising a frame, a kneading drive assembly, a kneading shaft driven to rotate by the kneading drive assembly, and at least one set of massage components. Each massage component includes massage arms disposed at both ends of the kneading shaft, the massage arms being eccentrically connected to the kneading shaft. A collapsible mechanism is provided on the frame below the massage arms. The collapsible mechanism includes a guide rod, a movable seat, a sliding sleeve, a latch plate, a connecting rod, and a tension spring. The guide rod is connected to the frame; the movable seat is connected to the guide rod; and the sliding sleeve... The device is slidably fitted onto the guide rod; the buckle plate is hinged to the sliding sleeve and can swing relative to the sliding sleeve; both ends of the connecting rod are respectively hinged to the buckle plate and the corresponding massage arm; both ends of the tension spring are respectively connected to the buckle plate and the movable seat, and its elastic force drives the buckle plate to remain against or engaged with the movable seat; when the downward impact force on the massage arm exceeds the preload of the tension spring, the connecting rod drives the buckle plate to swing to disengage from the abutment or engagement with the movable seat, so that the sliding sleeve can slide along the guide rod to realize the collapse of the massage arm.

[0008] By adopting the above technical solution, and by setting a collapse mechanism consisting of a guide rod, movable seat, sliding sleeve, buckle plate, connecting rod, and tension spring, and directly placing it below the massage arm and connecting it to the massage arm's transmission, a deep integration of the collapse function and the massage arm's support structure is achieved. When the massage arm is subjected to an abnormal downward impact, the impact force acts directly on the buckle plate through the connecting rod, resulting in a very short force flow path and rapid response. This eliminates the need for other intermediaries such as a driver, ensuring direct protection. The collapse threshold is set by the preload of the tension spring, eliminating the need for electronic sensors, controllers, or explosive components. This results in a simple structure, high reliability, and no risk of circuit failure. The collapse process involves the physical unlocking and sliding of the mechanism, rather than a destructive action. After the impact force is removed, the mechanism returns to normal operation by automatically resetting the buckle plate through the preload of the tension spring or by moving the movable seat. This allows for reusability and low maintenance costs.

[0009] As a preferred embodiment of the present invention, the buckle plate is provided with a connecting pin; one end of the connecting rod is provided with an elongated hole or a sliding groove that cooperates with the connecting pin to realize a sliding hinge between the connecting rod and the buckle plate; the other end of the connecting rod is provided with a ball head, and forms a ball hinge connection with a ball socket provided on the massage arm.

[0010] By adopting the above technical solution, the connection between the connecting rod and the buckle plate is set as a sliding hinge with a connecting pin and an elongated hole or a sliding groove, and the connection between the connecting rod and the massage arm is set as a ball joint connection, forming a composite connection method of "sliding hinge-ball joint". The sliding hinge ensures that the connecting rod can efficiently and without interference convert the downward impact force of the massage arm into the force that drives the buckle plate to swing, and can ensure that the massage arm performs normal kneading and scraping actions, avoiding motion interference, and making the collapse trigger and normal massage action not interfere with each other.

[0011] As a preferred embodiment of the present invention, the sliding sleeve includes a sleeve and support plates extending upward from both sides of the sleeve; the buckle plate is located between the two support plates and is pivotally connected to the support plates via a pivot.

[0012] By adopting the above technical solution, the sliding sleeve adopts an integrated structure of sleeve and support plates extending upward on both sides. The buckle is installed between the two support plates through a pivot, providing a solid and symmetrical support point for the swing of the buckle, ensuring stable force transmission when the collapse is triggered, and preventing off-center load.

[0013] As a preferred embodiment of the present invention, the movable seat is provided with a guide slope on the side facing the sliding sleeve; when the sliding sleeve moves along the guide rod in the reset direction, the fastening part of the buckle plate is guided by the guide slope until it abuts or fastens against the movable seat again.

[0014] By adopting the above technical solution, when restoration is required, the fastening part of the buckle slides along the guide slope under the action of the tension spring and is automatically guided to a position where it re-abuts or fastens with the movable seat; or, the movable seat is driven to move so that the buckle is re-fastened to the movable seat; making the reset process after collapse simple and intuitive, without the need for complicated alignment or disassembly, greatly improving the maintainability of the product and the user experience.

[0015] As a preferred embodiment of the present invention, the movable seat is provided with a first lug; the buckle plate is provided with a second lug; and the two ends of the tension spring are respectively hooked to the first lug and the second lug.

[0016] By adopting the above technical solution, the lug structure provides a clear and secure mounting point for the tension spring, making installation convenient.

[0017] As a preferred embodiment of the present invention, the massage assembly is provided in two sets, and the two sets of massage assemblies are arranged vertically and connected to the kneading shaft; the eccentric transmission parts at both ends of the kneading shaft pass through and drive the upper and lower sets of massage assemblies to perform kneading and scraping actions.

[0018] By adopting the above technical solution, the upper and lower massage components can correspond to different areas of the occupant's back (such as the shoulders and waist), providing a more comprehensive and targeted massage experience; the upper and lower massage components are driven by a single kneading shaft, which simplifies the drive structure and improves space utilization and transmission efficiency.

[0019] As a preferred embodiment of the present invention, a guide rod is provided on each side of the frame; two movable seats that can move along its axial direction are sleeved on each guide rod, corresponding to the massage components located on the upper and lower sides respectively; the two movable seats on the same guide rod have opposite helical directions of their internal threads and cooperate with the corresponding reverse thread section on the guide rod; the guide rod is driven to rotate by an adjustment drive mechanism; when the guide rod rotates, the two movable seats on the same guide rod move towards or away from each other along the axial direction, thereby driving the buckles and connecting rods of the upper and lower pairs of massage arms connected to them respectively, realizing the angle adjustment of the upper and lower pairs of massage arms in the same vertical direction.

[0020] By adopting the above technical solution, a single bidirectional threaded guide rod can simultaneously control two movable seats, enabling complex adjustment functions to be completed with a single drive source. When the guide rod rotates, the upper and lower movable seats automatically move in opposite directions or away from each other, thereby adjusting the lateral opening angle or spacing of the upper and lower pairs of massage arms through the connecting rod. This mechanism allows the massage mechanism to automatically adjust the lateral range of action of the massage rollers at the ends of the massage arms according to the occupant's body shape or preferences, thus improving the comfort of the massage.

[0021] As a preferred embodiment of the present invention, the adjustment drive mechanism includes a guide rod drive motor, a worm gear, and a gear set; the worm gear is rotatably mounted on the frame and is linked to the output shaft of the guide rod drive motor via a belt transmission mechanism; both ends of the worm gear are respectively meshed with one of the gear sets; the two gear sets are respectively connected to the ends of the guide rods on both sides for transmitting the power of the guide rod drive motor to the two guide rods synchronously.

[0022] By adopting the above technical solution, the adjustment drive mechanism uses a transmission chain of "motor-belt drive-worm gear-gear set". The worm gear drive has the characteristics of smoothness and low noise, and has a self-locking function, which can be locked at any position to ensure that the distance between the massage arms can be stably maintained after adjustment and will not change due to vibration.

[0023] As a preferred embodiment of the present invention, a striking drive assembly is integrated on at least one side of the movable seat; the movable seat on this side includes a movable plate that slides along the axial direction of the guide rod and a transmission plate that is linked with the movable plate; the striking drive assembly includes a striking motor, an eccentric wheel, and a swing arm; the output shaft of the striking motor is drivenly connected to the eccentric wheel, and the eccentric wheel is rotatably mounted on the movable plate through a bearing; one end of the swing arm is sleeved on the outer ring of the bearing, and the other end is hinged to a transmission column provided on the transmission plate; the two ends of the tension spring are respectively connected to the buckle plate and the transmission plate, and its elastic force drives the buckle plate to remain abutting or fastened against the transmission plate.

[0024] By adopting the above technical solution, the kneading (or scraping) function, the collapse safety function, the lateral adjustment function, and the tapping function are perfectly integrated into a single mechanism within a limited space, thus enriching the massage experience. Attached Figure Description

[0025] Figure 1 This is a schematic diagram of the massage mechanism of the present invention in normal working condition; Figure 2 This is a schematic diagram of the collapse mechanism in this invention; Figure 3 This is a schematic diagram of the massage mechanism of the present invention in a collapsed state; Figure 4 yes Figure 3 A magnified view of part A; Figure 5 This is a schematic diagram of the massage mechanism of the present invention in its reset state; Figure 6 This is a schematic diagram of the internal structure of the massage mechanism of the present invention; Figure 7 This is a schematic diagram of the internal structure of the massage mechanism of the present invention; Figure 8 This is a schematic diagram of the structure of the upper and lower massage arms and the kneading shaft in this invention.

[0026] Reference numerals: 1. Frame; 2. Massage assembly; 3. Massage arm; 4. Collapsing mechanism; 5. Guide rod; 6. Movable seat; 7. Sliding sleeve; 8. Buckle plate; 9. Connecting rod; 10. Tension spring; 11. Connecting pin; 12. Oblong hole; 13. Ball head; 14. Sleeve; 15. Support plate; 16. Pivot; 17. Guide slope; 18. Fastening part; 19. First ear; 20. Second ear; 21. Kneading shaft; 22. Eccentric transmission part; 23. Reverse thread section; 24. Guide rod drive motor; 25. Worm gear; 26. Gear set; 27. Moving plate; 28. Transmission plate; 29. ​​Striking motor; 30. Eccentric wheel; 31. Swing arm; 32. Transmission column; 33. Bearing. 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 1-8 The massage mechanism shown includes a frame 1, a kneading drive assembly, a kneading shaft 21 driven to rotate by the kneading drive assembly, and at least one set of massage components 2. Each massage component 2 includes massage arms 3 located at both ends of the kneading shaft 21. Massage wheels are provided at the ends of the massage arms 3. The massage arms 3 are eccentrically connected to the kneading shaft 21. A collapse mechanism 4 is provided on the frame 1 below the massage arms 3. The collapse mechanism 4 includes a guide rod 5, a movable seat 6, a sliding sleeve 7, a retaining plate 8, a connecting rod 9, and a tension spring 10. The guide rod 5 is connected to the frame 1; the movable seat 6 is connected to the guide rod 5; and the sliding sleeve 7 is slidable. The massage arm 3 is mounted on the guide rod 5; the buckle plate 8 is hinged to the sliding sleeve 7 and can swing relative to the sliding sleeve 7; the two ends of the connecting rod 9 are respectively hinged to the buckle plate 8 and the corresponding massage arm 3; the two ends of the tension spring 10 are respectively connected to the buckle plate 8 and the movable seat 6, and its elastic force drives the buckle plate 8 to remain against or engaged with the movable seat 6; when the downward impact force on the massage arm 3 exceeds the preload of the tension spring 10, the connecting rod 9 drives the buckle plate 8 to swing to disengage from the abutment or engagement with the movable seat 6, so that the sliding sleeve 7 can slide along the guide rod 5 to realize the collapse of the massage arm 3. In this embodiment, the kneading drive assembly is a known power mechanism for driving the kneading shaft 21 to rotate, which belongs to the mature existing technology in the field of massage mechanism. The specific selection and connection method of this assembly can be conventionally selected and designed by those skilled in the art according to the actual power, speed and space layout requirements, so this application will not elaborate on this.

[0030] By setting up a collapse mechanism 4 consisting of a guide rod 5, a movable seat 6, a sliding sleeve 7, a buckle plate 8, a connecting rod 9, and a tension spring 10, and directly placing it below the massage arm 3 and connecting it to the massage arm 3 for transmission, the collapse function is deeply integrated with the support structure of the massage arm 3. When the massage arm 3 is subjected to an abnormal downward impact, the impact force acts directly on the buckle plate 8 through the connecting rod 9. The force flow path is extremely short, the response is rapid, and there is no need for other intermediaries such as a driver, ensuring direct protection. The collapse threshold is set by the preload of the tension spring 10, without relying on electronic sensors, controllers, or explosive elements. The structure is simple, highly reliable, and there is no risk of circuit failure. The collapse process is a physical unlocking and sliding action, not a destructive action. After the impact force is removed, the tension spring 10 automatically resets or the movable seat 6 is moved to the buckling position, allowing the buckle plate 8 to re-fasten to the movable seat 6, thus restoring the massage arm 3 to its normal working state. This achieves reusability and low maintenance costs.

[0031] The buckle plate 8 is provided with a connecting pin 11; one end of the connecting rod 9 is provided with an elongated hole 12 or a sliding groove that cooperates with the connecting pin 11 to realize the sliding hinge between it and the buckle plate 8; the other end of the connecting rod 9 is provided with a ball head 13, which forms a ball hinge connection with the ball socket provided on the massage arm 3.

[0032] By setting the connection between the connecting rod 9 and the buckle plate 8 as a sliding hinge that engages with the connecting pin 11 and the elongated hole 12 or the slide groove, and setting the connection between the connecting rod 9 and the massage arm 3 as a ball joint, a composite connection method of "sliding hinge-ball joint" is formed. The sliding hinge ensures that the connecting rod 9 can efficiently and without interference convert the downward impact force of the massage arm 3 into the force that drives the buckle plate 8 to swing, and can also ensure that the massage arm 3 performs normal kneading and scraping actions, avoiding motion interference, and ensuring that the collapse trigger and normal massage actions do not interfere with each other.

[0033] The sliding sleeve 7 includes a sleeve 14 and support plates 15 extending upward from both sides of the sleeve 14; the latching plate 8 is located between the two support plates 15 and is pivotally connected to the support plates 15 via a pivot 16. The sliding sleeve 7 adopts an integral structure of the sleeve 14 and the upwardly extending support plates 15 on both sides. The latching plate 8 is installed between the two support plates 15 via the pivot 16, providing a solid and symmetrical support point for the swing of the latching plate 8, ensuring stable force transmission when collapsing is triggered, and preventing off-center loading.

[0034] The movable seat 6 has a guide slope 17 on the side facing the sliding sleeve 7. When the sliding sleeve 7 moves along the guide rod 5 in the reset direction, the fastening part 18 of the buckle plate 8 (preferably a downwardly bent plate) is guided by the guide slope 17 until it re-abuts or fastens against the movable seat 6. When restoration is required, the fastening part 18 of the buckle plate 8 slides along the guide slope 17 under the action of the tension spring 10 and is automatically guided to a position where it re-abuts or fastens against the movable seat 6; or, the movable seat 6 is driven to move so that the buckle plate 8 re-fastens onto the movable seat 6. This makes the reset process after collapse simple and intuitive, without the need for complex alignment or disassembly, greatly improving the maintainability of the product and the user experience.

[0035] The movable seat 6 is provided with a first lug 19; the buckle plate 8 is provided with a second lug 20; the two ends of the tension spring 10 are respectively hooked to the first lug 19 and the second lug 20. The lug structure provides a clear and firm hook point for the tension spring 10, making installation convenient.

[0036] The massage components 2 are provided in two sets, arranged vertically and connected to the kneading shaft 21. Eccentric transmission parts 22 at both ends of the kneading shaft 21 pass through and drive the upper and lower sets of massage components 2 to perform kneading and scraping actions. The upper and lower sets of massage components 2 can respectively correspond to different areas of the occupant's back (such as the shoulders and waist), providing a more comprehensive and targeted massage experience. Sharing a single kneading shaft 21 to drive both sets of massage components 2 simplifies the drive structure and improves space utilization and transmission efficiency. In this embodiment, the eccentric transmission part 22 on the kneading shaft 21 used to drive the massage arm 3 can be implemented using various structural forms known in the art, such as an eccentric wheel 30, an eccentric shaft, or a cam. The transmission connection method between the massage arm 3 and the eccentric transmission part 22 is also existing technology. For example, the massage arm 3 can be directly connected to the eccentric transmission part 22; alternatively, a bearing 33 can be installed outside the eccentric transmission part 22, allowing the massage arm 3 to be fitted onto the outer ring of the bearing 33, thereby achieving low-friction and stable transmission. Such eccentric transmission structures and their connection methods are already quite mature, and this application will not elaborate on their specific construction. In this application, each massage arm 3 can collapse independently, or collapse synchronously in pairs, depending on the eccentric structure of the kneading shaft 21 and the massage arm 3. The improvement in this application is not in the specific collapse form, but in the specific structure of the collapse mechanism 4.

[0037] Each side of the frame 1 is provided with a guide rod 5; each guide rod 5 is fitted with two movable seats 6 that can move along its axial direction (specifically: there are two sets of movable seats 6, and any movable seat 6 slides and engages with the guide rods 5 on both sides), corresponding to the massage components 2 located on the upper and lower sides respectively; the two movable seats 6 on the same guide rod 5 have opposite spiral directions of their internal threads, and engage with the corresponding reverse thread section 23 on the guide rod 5 (only corresponding to the movable seat 6 part); the guide rod 5 is driven to rotate by an adjustment drive mechanism; when the guide rod 5 rotates, the two movable seats 6 on the same guide rod 5 move towards or away from each other along the axial direction, thereby driving the buckle plates 8 and connecting rods 9 of the upper and lower pairs of massage arms 3 connected to them respectively, realizing the angle adjustment of the upper and lower pairs of massage arms 3 in the same vertical direction.

[0038] By using a bidirectional threaded guide rod 5 to simultaneously control two movable seats 6, complex adjustment functions can be completed with a single drive source. When the guide rod 5 rotates, the upper and lower movable seats 6 automatically move towards or away from each other, thereby adjusting the lateral opening angle or spacing of the upper and lower pairs of massage arms 3 through the connecting rod 9. This mechanism allows the massage mechanism to automatically adjust the lateral range of action of the massage rollers at the ends of the massage arms 3 according to the occupant's body shape or preferences, thus improving the comfort of the massage.

[0039] The adjustment drive mechanism includes a guide rod drive motor 24, a worm gear 25, and a gear set 26. The worm gear 25 is rotatably mounted on the frame 1 and is linked to the output shaft of the guide rod drive motor 24 via a belt drive mechanism. Each end of the worm gear 25 meshes with one of the gear sets 26. The two gear sets 26 are respectively connected to the ends of the guide rods 5 on both sides, for synchronously transmitting the power of the guide rod drive motor 24 to the two guide rods 5. The adjustment drive mechanism adopts a transmission chain of "motor-belt drive-worm gear 25-gear set 26". The worm gear 25 transmission is characterized by smooth operation and low noise, and has a self-locking function, allowing it to be locked in any position to ensure that the distance between the massage arms 3 remains stable after adjustment and will not change due to vibration.

[0040] At least one of the movable seats 6 has an integrated striking drive assembly; the movable seat 6 on this side includes a movable plate 27 that slides axially along the guide rod 5 and a transmission plate 28 that is linked to the movable plate 27; the striking drive assembly includes a striking motor 29, an eccentric wheel 30, and a swing arm 31; the output shaft of the striking motor 29 is connected to the eccentric wheel 30 via a transmission method conventional in the art. For example, the eccentric wheel 30 can be directly fixedly mounted on the output shaft of the striking motor 29 and driven directly by the motor; or, a belt drive mechanism (such as a synchronous belt and pulley) can be provided between the output shaft of the striking motor 29 and the eccentric wheel 30. Indirect transmission. This type of transmission connection is a mature existing technology, and those skilled in the art can make conventional selections and designs according to specific spatial layout and power transmission requirements. The eccentric wheel 30 is rotatably mounted on the movable plate 27 (the movable plate 27 is threadedly engaged with the reverse threaded section 23 of the guide rod 5) via the bearing 33; one end of the swing arm 31 is sleeved on the outer ring of the bearing 33, and the other end is hinged to the transmission column 32 provided on the transmission plate 28; the two ends of the tension spring 10 are respectively connected to the buckle plate 8 and the transmission plate 28, and its elasticity drives the buckle plate 8 to remain abutting or engaging with the transmission plate 28. Within a limited space, the kneading (or scraping) function, the collapse safety function, the lateral adjustment function, and the tapping function are perfectly integrated into one mechanism, enriching the massage experience. In this embodiment, the preferred method is to set the tapping drive component on one set of movable seats 6, while the other set of movable seats 6 does not have the tapping drive component installed, and the structures of the two sets of movable seats 6 are different.

[0041] 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 massage movement with collapse structure, comprising a frame (1), a kneading drive assembly, a kneading shaft (21) driven to rotate by the kneading drive assembly, and at least one set of massage assemblies (2), the massage assemblies (2) comprising massage arms (3) arranged at both ends of the kneading shaft (21), the massage arms (3) being eccentrically connected with the kneading shaft (21), characterized in that: The rack (1) is provided with a collapse mechanism (4) below the massage arm (3); the collapse mechanism (4) comprises a guide rod (5), a movable seat (6), a sliding sleeve (7), a buckle plate (8), a connecting rod (9) and a tension spring (10); the guide rod (5) is connected to the rack (1); the movable seat (6) is connected to the guide rod (5); the sliding sleeve (7) is slidably sleeved on the guide rod (5); the buckle plate (8) is hinged to the sliding sleeve (7) and can swing relative to the sliding sleeve (7); the two ends of the connecting rod (9) are respectively hinged to the buckle plate (8) and the corresponding massage arm (3); the two ends of the tension spring (10) are respectively connected to the buckle plate (8) and the movable seat (6), and the elastic force of the tension spring (10) drives the buckle plate (8) to abut against or buckle with the movable seat (6); when the downward impact force borne by the massage arm (3) exceeds the pre-tightening force of the tension spring (10), the connecting rod (9) drives the buckle plate (8) to swing to disengage from the abutment or buckling with the movable seat (6), so that the sliding sleeve (7) can slide along the guide rod (5) to realize the collapse of the massage arm (3).

2. The wraparound movement with crash structure according to claim 1, characterized in that: The buckle plate (8) is provided with a connecting pin (11); one end of the connecting rod (9) is provided with an oblong hole (12) or a sliding groove matched with the connecting pin (11) to realize the sliding hinge between the connecting rod (9) and the buckle plate (8); the other end of the connecting rod (9) is provided with a ball head (13) and forms a spherical hinge with a ball socket provided on the massage arm (3).

3. The wraparound movement with crash structure according to claim 1, characterized in that: The sliding sleeve (7) comprises a sleeve pipe (14) and support plates (15) extending upward from both sides of the sleeve pipe (14); the buckle plate (8) is located between the two support plates (15) and is pivoted to the support plates (15) through a pivot (16).

4. The wraparound movement with crash structure according to claim 1, characterized in that: The side of the movable seat (6) facing the sliding sleeve (7) is provided with a guide inclined surface (17); when the sliding sleeve (7) moves in the reset direction along the guide rod (5), the buckling part (18) of the buckle plate (8) is guided by the guide inclined surface (17) until it abuts against or buckles with the movable seat (6) again.

5. The wraparound movement with crash structure according to claim 1, characterized in that: The movable seat (6) is provided with a first lug (19); the buckle plate (8) is provided with a second lug (20); the two ends of the tension spring (10) are respectively hung on the first lug (19) and the second lug (20).

6. The wraparound movement with crash structure according to claim 1, characterized in that: The massage assembly (2) is provided with two groups, and the two groups of massage assemblies (2) are arranged in the vertical direction and connected to kneading shafts (21); eccentric transmission parts (22) at both ends of the kneading shafts (21) respectively penetrate and drive the upper and lower massage assemblies (2) to perform kneading and scraping actions.

7. The wraparound movement with crash structure according to claim 6, characterized in that: Two of the guide rods (5) are arranged on two sides of the frame (1); two movable seats (6) are sleeved on each guide rod (5) and can move along the axial direction of the guide rod (5); the two movable seats (6) correspond to the upper and lower massage assemblies (2) respectively; the inner threads of the two movable seats (6) on the same guide rod (5) are opposite in spiral direction and are matched with the corresponding reverse thread segments (23) on the guide rod (5); the guide rod (5) is driven to rotate by an adjusting driving mechanism; when the guide rod (5) rotates, the two movable seats (6) on the same guide rod (5) move towards or away from each other along the axial direction, thereby driving the clamping plates (8) and the connecting rods (9) of the upper and lower pairs of massage arms (3) connected thereto respectively, and achieving angle adjustment of the upper and lower pairs of massage arms (3) in the same vertical direction.

8. The wraparound movement with crash structure according to claim 7, characterized in that: The adjusting driving mechanism comprises a guide rod driving motor (24), a worm (25) and a gear set (26); the worm (25) is rotatably installed on the frame (1) and is connected to the output shaft of the guide rod driving motor (24) through a belt transmission mechanism; the two ends of the worm (25) are respectively engaged with one of the gear sets (26); the two gear sets (26) are respectively connected to the end portions of the guide rods (5) on the two sides in a transmission manner, for synchronously transmitting the power of the guide rod driving motor (24) to the two guide rods (5).

9. The wraparound movement for a watch according to claim 1 or 6 or 7 or 8, characterized in that: The knocking driving assembly is integrated on at least one of the movable seats (6); the movable seat (6) comprises a moving plate (27) which slides along the axial direction of the guide rod (5) and a transmission plate (28) which is connected to the moving plate (27) in a linkage manner; the knocking driving assembly comprises a knocking motor (29), an eccentric wheel (30) and a swing arm (31); the output shaft of the knocking motor (29) is connected to the eccentric wheel (30) in a transmission manner, the eccentric wheel (30) is rotatably installed on the moving plate (27) through a bearing (33), one end of the swing arm (31) is sleeved on the outer ring of the bearing (33), and the other end of the swing arm (31) is hinged to a transmission column (32) arranged on the transmission plate (28); the two ends of the tension spring (10) are respectively connected to the clamping plate (8) and the transmission plate (28), and the elastic force of the tension spring (10) drives the clamping plate (8) to abut against or be buckled with the transmission plate (28).

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