Stable liftable tapping kneading scraping mechanism

Abstract

The utility model discloses a kind of knock rub scraping mechanism of stable lifting, including connecting frame, movable frame movable relative to connecting frame, gasbag assembly being set on connecting frame, gasbag assembly is driven movable frame to move by filling and discharging gas;Driving motor, first massage assembly, first transmission assembly are provided on movable frame;First transmission assembly includes first rotating shaft, first eccentric and pivot;Driving motor drives first rotating shaft rotation, drives first massage assembly both ends swing around pivot;Second massage assembly and second transmission assembly are also provided on movable frame;Second transmission assembly includes second rotating shaft and the second eccentric of second massage assembly being installed in both ends of second rotating shaft;Driving motor drives second rotating shaft rotation, and through the second eccentric of both ends, second massage assembly reciprocating motion is driven. Can improve the discomfort problem caused by rigidity drive in existing massage device, and reduce invalid action in massage process, improve massage effectiveness and comfort.

Description

Technical Field

[0001] This utility model relates to physiotherapy equipment, specifically a tapping and scraping mechanism that can be stably lifted. Background Technology

[0002] Lifting mechanisms are widely used in drive mechanisms that require height or position adjustment. Typical lifting mechanisms primarily employ linear drive mechanisms, such as lead screws, pneumatic actuators, and hydraulic actuators. This type of drive is more inclined towards rigid actuation. However, it has poor applicability in massage devices, especially massage motors, and can easily cause discomfort to the user.

[0003] Furthermore, in existing technologies, it is common to use a motor to drive an eccentric component to make the massage head tap. However, this structure drives a reciprocating motion, and only the tapping motion towards the human body is effective during its cycle. The retraction motion that returns the massage head to its initial position does not produce a massage effect and is an ineffective motion. Utility Model Content

[0004] In view of the shortcomings of the existing technology, the purpose of this utility model is to provide a stable lifting tapping and scraping mechanism, which can improve the discomfort caused by rigid drive in existing massage devices, reduce ineffective movements during the massage process, and improve the effectiveness and comfort of the massage.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a stable lifting and kneading mechanism. It includes a connecting frame, a movable frame that can move relative to the connecting frame, and an airbag assembly disposed on the connecting frame, wherein the airbag assembly drives the movable frame to move by inflating and deflating air; The mobile frame is equipped with a driver, a first massage component, and a first transmission component connected to the driving end of the driver; the first transmission component includes a first rotating shaft, first eccentric members installed at both ends of the first rotating shaft and connected to the first massage component, and a rotating shaft disposed between the two eccentric members and connected to the first massage component; the driver drives the first rotating shaft to rotate, thereby causing the first eccentric members at both ends to rotate, so as to drive the two ends of the first massage component to swing around the rotating shaft. The mobile frame is also provided with a second massage component and a second transmission component connected to the drive end of the driver; The second transmission assembly includes a second rotating shaft and second eccentric members mounted at both ends of the second rotating shaft and the second massage assembly; the driver drives the second rotating shaft to rotate and drives the second massage assembly to reciprocate through the second eccentric members at both ends.

[0006] As a further improvement of this utility model, the connecting frame is provided with a support component for guiding the movement of the moving frame; the support component provides support for the connecting frame to move along a preset trajectory, and when the airbag is inflated, it drives the moving frame to move along the preset trajectory.

[0007] As a further improvement of this utility model, the support component includes a linkage mechanism consisting of a first connecting member, a second connecting member, and several connecting rods. The first connecting member and the second connecting member are both connected to the linkage mechanism. The first connecting member is fixedly connected to the connecting frame, and the second connecting member is fixedly connected to the movable frame. The movable frame moves along a preset trajectory by inflating or deflating the airbag in coordination with the linkage mechanism. After the linkage mechanism is retracted into place, a gap is formed between the first connecting member and the second connecting member, and this gap helps to limit the movable frame from compressing the airbag.

[0008] As a further improvement of this utility model, at least two links in the linkage mechanism have at least partial projection overlap in the retraction direction of the linkage mechanism. When the linkage mechanism is retracted to the final position, the overlapping portion of the projections of these two links forms an abutment, thereby creating a gap between the first connecting member and the second connecting member; and / or In the linkage mechanism, at least two links have at least partial projection overlap in the linkage mechanism's unfolding direction. When the linkage mechanism is unfolded into place, the overlapping points of these two links form an abutment to create a maximum unfolding limit.

[0009] As a further improvement of this utility model, the edges of the first eccentric members at both ends that are furthest from the axis of the first rotating shaft are arranged on both radial sides of the first rotating shaft.

[0010] As a further improvement of this utility model, the line-plane angle formed by the axis of the second rotating shaft and the mating surface of the second massage component is greater than 0 degrees and less than 90 degrees.

[0011] As a further improvement of this utility model, the second massage component is provided with a downward protrusion, and the movable frame is provided with a sliding groove for the protrusion to slide on the lower part of the second massage component. The protrusion is inserted into the slide groove and cooperates with the slide groove to allow the protrusion to reciprocate along the axial direction of the second rotation axis.

[0012] As a further improvement of this utility model, it also includes a one-way rotating component; The first rotating shaft is connected to the driver via a one-way rotating component; Alternatively, the second rotating shaft may be connected to the driver via a one-way rotating component; The driver is a dual-head driver; One end of the driver is connected to the first rotating shaft, and the other end is connected to the second rotating shaft; The driver rotates forward or backward to drive the first and second rotating shafts.

[0013] The beneficial effects of this utility model are as follows: The stable lifting tapping and kneading mechanism realizes the movement drive of the moving frame through the airbag assembly. The flexible drive of the airbag can reduce the hard impact on the user's body and improve the discomfort during the massage process. At the same time, the first massage component set on the moving frame realizes the swing through the first transmission component, and the second massage component realizes the reciprocating motion through the second transmission component. The combination of the two movements can form more effective massage actions within the massage cycle, improving the massage effect and user experience. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the overall structure of the present invention (airbag assembly inflated state). Figure 2 This is a schematic diagram of the internal structure of the present invention; Figure 3 This is a schematic diagram of the engagement state of the second transmission component of this utility model; Figure 4 This is a schematic diagram of the temporal structure of this utility model (airbag assembly in deflated state). Figure 5 for Figure 1 Enlarged view of part A in the image; Figure 6 for Figure 4 Enlarged view of part B in the image; Figure 7 This is a schematic diagram of the first eccentric component of this utility model; Figure 8 This is a schematic diagram showing the angular fit between the second eccentric component and the second rotating shaft of this utility model.

[0015] Reference numerals: 1. Connecting frame; 11. Support assembly; 111. First connecting member; 112. Second connecting member; 113. Linkage mechanism; 114. Clearance; 2. Moving frame; 21. Slide groove; 3. Airbag assembly; 4. Driver; 51. First massage assembly; 52. First transmission assembly; 521. First rotating shaft; 522. First eccentric member; 523. Rotating shaft; 61. Second massage assembly; 611. Protrusion; 62. Second transmission assembly; 621. Second rotating shaft; 622. Second eccentric member; 7. One-way rotating member; 8. Mating surface. Detailed Implementation

[0016] The present invention will now be described in further detail with reference to the embodiments shown in the accompanying drawings.

[0017] Reference Figure 1-8 As shown, A stable lifting mechanism for striking and scraping. It includes a connecting frame 1, a movable frame 2 that can move relative to the connecting frame 1, and an airbag assembly 3 set on the connecting frame 1. The airbag assembly 3 drives the movable frame 2 to move by inflating and deflating air. The mobile frame 2 is equipped with a driver 4, a first massage component 51, and a first transmission component 52 connected to the driving end of the driver 4. The first transmission component 52 includes a first rotating shaft 521, first eccentric members 522 installed at both ends of the first rotating shaft 521 and connected to the first massage component 51, and a rotating shaft 523 disposed between the two eccentric members and connected to the first massage component 51. The driver 4 drives the first rotating shaft 521 to rotate, thereby causing the first eccentric members 522 at both ends to rotate, so as to drive the two ends of the first massage component 51 to swing around the rotating shaft 523. The movable frame 2 is also equipped with a second massage component 61 and a second transmission component 62 connected to the drive end of the driver 4; The second transmission assembly 62 includes a second rotating shaft 621 and second eccentric members 622 installed at both ends of the second rotating shaft 621 and the second massage assembly 61; the driver 4 drives the second rotating shaft 621 to rotate and drives the second massage assembly 61 to reciprocate through the second eccentric members 622 at both ends.

[0018] The connecting frame 1, as the basic support component of the entire mechanism, can be connected and fixed to an external mounting structure (such as a massage chair frame) by bolts or welding; the airbag assembly 3 can be fixed to the preset mounting position of the connecting frame 1 by adhesive or bolts, and an air tube can be connected to the airbag assembly 3, with the other end of the air tube connected to an external inflation pump or other inflation equipment to achieve precise inflation and deflation; see reference. Figure 1 , 2 As shown, the movable frame 2 is located above the connecting frame 1, and its bottom is in contact with the top of the airbag assembly 3. When the airbag assembly 3 is inflated, the airbag generates an upward thrust on the movable frame 2, causing the movable frame 2 to move upward relative to the connecting frame 1. When the airbag assembly 3 is deflated, the movable frame 2 returns to its original position relative to the connecting frame 1 under its own weight or a slight external auxiliary force (such as the weight of a human body).

[0019] The driver 4 can be a servo motor or a stepper motor, fixed to a preset position on the moving frame 2 via a motor bracket. The output end of the driver 4 is connected to the first rotating shaft 521 of the first transmission assembly 52 and the second rotating shaft 621 of the second transmission assembly 62. The first rotating shaft 521 is mounted on the moving frame 2 via a bearing seat, which reduces friction during rotation. The first eccentric member 522 is fixed to both ends of the first rotating shaft 521 via a key connection or interference fit. The two ends of the first massage assembly 51 are respectively hinged to the corresponding first eccentric member 522. At the same time, the middle area of ​​the first massage assembly 51 is hinged to the moving frame 2 section between the two eccentric members via a rotating shaft 523. When the driver 4 drives the first rotating shaft 521 to rotate, the first eccentric members 621 at both ends... The eccentric component 522 rotates synchronously. Due to the eccentricity of the eccentric component, it generates a periodic pushing force on both ends of the first massage component 51, thereby driving both ends of the first massage component 51 to oscillate back and forth around the rotating shaft 523, thus producing a tapping massage effect. The second rotating shaft 621 is also mounted on the movable frame 2 through a bearing seat. The second eccentric component 622 is fixed at both ends of the second rotating shaft 621 by a key connection. Both ends of the second massage component 61 are respectively hinged to the corresponding second eccentric component 622. When the driver 4 drives the second rotating shaft 621 to rotate, the second eccentric components 622 at both ends rotate synchronously. The periodic force generated by its eccentric structure will push the second massage component 61 to reciprocate along a preset direction. This reciprocating motion can achieve a kneading and scraping effect on the human body. The flexible drive of the airbag assembly 3 avoids the impact discomfort caused to users by traditional rigid drives. Simultaneously, the oscillation of the first massage assembly 51 and the reciprocating motion of the second massage assembly 61 work together to create an effective massage action combining tapping and kneading within the same massage cycle. This reduces the problem of "ineffective retraction" in traditional single-tapping structures, improves the effectiveness of massage actions, and thus enhances the user's massage experience. Furthermore, the cushioning effect provided by the flexible drive buffers the massage action, preventing discomfort caused by excessive massage force.

[0020] In order to facilitate the mobile frame 2 to maintain a stable trajectory during the activity, in one optional scheme, the connecting frame 1 is provided with a support component 11 for guiding the movement of the mobile frame 2; the support component 11 provides support for the connecting frame 1 to move along the preset trajectory, and when the airbag is inflated, it drives the mobile frame 2 to move along the preset trajectory.

[0021] The support component 11 can be fixed to the sides or perimeter of the connecting frame 1 by bolts. Its specific structure can be designed according to a preset trajectory, such as a slide rail slider structure or a guide rod guide sleeve structure. Taking the slide rail slider structure as an example, the slide rail is fixed to the connecting frame 1 along a preset trajectory (such as vertical, a specific arc direction, or an oblique direction). The slider is fixedly connected to the side of the movable frame 2, and the slider slides in conjunction with the slide rail. When the airbag component 3 inflates and pushes the movable frame 2 to move, the movable frame 2 drives the slider to slide along the slide rail. The slide rail restricts the sliding direction of the slider, preventing lateral deviation or swaying of the movable frame 2 during movement. Through the guiding and supporting function of the support component 11, the movable frame 2 can always move stably along the preset trajectory, stably acting on the preset massage area of ​​the human body, reducing the massage position deviation caused by the displacement of the movable frame 2, and further improving the accuracy and stability of the massage.

[0022] Specifically, the support component 11 can be optimized in the following way: the support component 11 includes a first connector 111, a second connector 112, and a linkage mechanism 113 composed of several connecting rods. The first connector 111 and the second connector 112 are both connected to the linkage mechanism 113. The first connector 111 is fixedly connected to the connecting frame 1, and the second connector 112 is fixedly connected to the movable frame 2. The movable frame 2 moves along a preset trajectory by expanding or contracting the linkage mechanism 113 in coordination with the inflation and deflation of the airbag. After the linkage mechanism 113 is contracted into place, a gap 114 is formed between the first connector 111 and the second connector 112, and the gap 114 helps to limit the compression of the airbag by the movable frame 2.

[0023] The first connecting member 111 can be made of metal plate and fixed to the top of the connecting frame 1 with screws; the second connecting member 112 also uses metal plate and is fixed to the bottom of the movable frame 2 with screws; the linkage mechanism 113 consists of two or more links, which are hinged to each other by pins to form a foldable quadrilateral or triangular structure. For example, the linkage mechanism 113 can be connected by an attachment Figure 1-6The linkage structure shown in the diagram: the first connecting piece 111 can be connected to the fixed part of the connecting frame 1 (such as the side boss or bottom reinforcing plate of the connecting frame 1) by welding, bolting, or other methods. Similarly, the second connecting piece 112 is fixed to the corresponding part of the movable frame 2 (such as the bottom support or side connecting plate of the movable frame 2) by bolting or welding, ensuring a secure connection. When the airbag inflates, it pushes the movable frame 2 upwards. The movable frame 2, through the second connecting piece 112, drives the linkage mechanism 113 to gradually unfold. During unfolding, the linkage mechanism 113 guides the movable frame 2, allowing it to move smoothly along a preset trajectory. When the airbag deflates, the movable frame 2 moves downwards under its own weight or user pressure. Through the second connecting piece 112, it drives the linkage mechanism 113 to gradually retract, returning to its initial position. The unfolding and retraction of the linkage mechanism 113 better controls the movement trajectory of the movable frame 2, improving the structural stability and service life of the lifting mechanism, and further enhancing the user experience. Depending on the length of the connecting rod and the position of the pin hinge, the connecting rod mechanism 113 can provide both linear and oblique guiding functions.

[0024] Due to the structural limitations of the linkage mechanism 113, a pre-defined gap 114 is formed between the first connecting member 111 and the second connecting member 112. This gap 114 can prevent the moving frame 2 from continuing to move downward and excessively compressing the airbag assembly 3, thus preventing deformation damage to the airbag assembly 3 caused by long-term compression and extending the service life of the airbag assembly 3. At the same time, compared with a single slide rail, the multi-link support structure of the linkage mechanism 113 can better distribute the load of the moving frame 2, improve the stability of the moving frame 2 during the movement, reduce the swaying of the moving frame 2, and has smaller space requirements.

[0025] In some options, to further optimize the limiting effect of the linkage mechanism 113, at least two links in the linkage mechanism 113 have at least partial projection overlap in the retraction direction of the linkage mechanism 113. When the linkage mechanism 113 is retracted, the overlapping projections of these two links form an abutment, so as to form a gap 114 between the first connector 111 and the second connector 112; and / or at least two links in the linkage mechanism 113 have at least partial projection overlap in the extension direction of the linkage mechanism 113. When the linkage mechanism 113 is extended, the overlapping projections of these two links form an abutment, so as to form the maximum extension limit.

[0026] In order to stably form the gap 114 when the linkage mechanism 113 retracts, avoid deviations in the size of the gap 114, and ensure the protective effect of the airbag, in some options, in the airbag-driven lifting mechanism, at least two links in the linkage mechanism 113 have at least partial projection overlap in the retraction direction of the linkage mechanism 113, and when the linkage mechanism 113 retracts into place, the overlapping parts of the projections of the two links form an abutment, so that the gap 114 is formed between the first connector 111 and the second connector 112.

[0027] For example, linkage mechanism 113 Figure 1-6 The scheme implemented in this paper has a partially overlapping projection area along the retraction direction (such as the vertical or horizontal direction) of the linkage mechanism 113. When the linkage mechanism 113 retracts, the two links gradually approach each other, and when they retract to a preset position, the two links are in close contact (see reference). Figure 6 As shown in the diagram, at this point, the linkage mechanism 113 can no longer retract, thus creating a stable, preset gap 114 between the first connecting member 111 and the second connecting member 112. Through the abutting engagement at the overlapping points of the two connecting rod projections, the retraction limit position of the linkage mechanism 113 can be precisely controlled.

[0028] Alternatively, the following configuration can be established: at least two links in the linkage mechanism 113 have at least partial projection overlap in the unfolding direction of the linkage mechanism 113; when the linkage mechanism 113 is fully unfolded, the overlapping points of these two links form an abutment (see reference). Figure 6 As shown in the diagram, this creates a maximum extension limit. By abutting the overlapping portions of the projections between the two links, the maximum travel can be limited, thus ensuring a better user experience.

[0029] In order to facilitate the inflation and deflation of the airbag and avoid interference with the movement of other components such as the moving frame 2 and the linkage mechanism 113, in an optional solution, the connecting frame 1 of the airbag-driven lifting mechanism is provided with a through hole corresponding to the position of the airbag, and the airbag is provided with an air nozzle for inflation or deflation corresponding to the position of the through hole, and the air nozzle extends through the through hole.

[0030] In order to optimize the swinging effect of the first massage component 51, in an optional embodiment, the edges of the first eccentric members 522 at both ends that are furthest from the axis of the first rotating shaft 521 are arranged on the radial sides of the first rotating shaft 521.

[0031] The first eccentric component 522 adopts an eccentric wheel structure, and its eccentricity can be designed according to the preset swing amplitude. It is fixed to both ends of the first rotating shaft 521 by key connection, and the installation directions of the two ends of the first eccentric component 522 are opposite. That is, the edge of the first eccentric component 522 farthest from the axis of the one end faces the radial left of the first rotating shaft 521, and the edge of the first eccentric component 522 farthest from the axis of the other end faces the radial right of the first rotating shaft 521. When the driver 4 drives the first rotating shaft 521 to rotate clockwise, the first eccentric component 522 at the left end will generate an upward thrust on the left end of the first massage component 51, thereby driving the left end of the first massage component 51 to swing upward and the right end to swing downward around the rotating shaft 523. When the first rotating shaft 521 continues to rotate to 180 degrees, the first eccentric component 522 at the right end will generate an upward thrust on the right end of the first massage component 51, driving the left end of the first massage component 51 to swing downward and the right end to swing upward around the rotating shaft 523. By using the first eccentric member 522 with this reverse setting, the swinging motion of the first massage component 51 can be smoother and the swinging amplitude can be more uniform, avoiding the problem of swinging jamming or insufficient swinging amplitude on one side due to the eccentric members at both ends being in the same direction. At the same time, the uniform swinging motion can make the force of the first massage component 51 when in contact with the human body more stable, reducing discomfort caused by sudden changes in local force, improving the comfort and effect of kneading and scraping massage, and also reducing ineffective movements.

[0032] In order to better coordinate the reciprocating motion of the second massage component 61 with the massage action of the first massage component 51, the following setting can be adopted: the line-plane angle formed by the axis of the second rotating shaft 621 and the mating surface 8 of the second massage component 61 is greater than 0 degrees and less than 90 degrees.

[0033] The mating surface 8 can be referenced. Figure 3 and 8 As shown, this refers to the mating surface 8 that mates radially with the second massage component 61 and the second rotating shaft 621, but this mating surface 8 forms an angle α with the axis of the second rotating shaft 621. Angle α can be referenced... Figure 8 As shown in the diagram, the second rotating shaft 621 is mounted on the movable frame 2 via a bearing seat. The angle between its axial direction and the mating surface 8 can be set to 30 degrees, 45 degrees, or 60 degrees, etc., according to massage requirements, resulting in different kneading and scraping amplitudes. When the driver 4 drives the second rotating shaft 621 to rotate, the second eccentric parts 622 at both ends drive the second massage component 61 to reciprocate. Due to the angle between the axis of the second rotating shaft 621 and the mating surface 8, the reciprocating motion of the second massage component 61 generates a kneading and scraping effect by reciprocating along the axial direction of the second rotating shaft 621. This can cover a wider massage area, making the massage effect more comprehensive. In addition, massage movements in different directions can simulate more diverse artificial massage techniques, further enriching the massage modes and enhancing the user experience.

[0034] In some cases, in order to ensure the stability of the reciprocating motion of the second massage component 61, the second massage component 61 can be improved as follows: the second massage component 61 is provided with a downwardly protruding protrusion 611, and the movable frame 2 is provided with a sliding groove 21 corresponding to the lower part of the second massage component 61 for the protrusion 611 to slide; the protrusion 611 is inserted into the sliding groove 21 and cooperates with the sliding groove 21 to allow the protrusion 611 to reciprocate along the axial direction of the second rotating shaft 621.

[0035] The protrusion 611 can be integrally formed with the second massage component 61, or fixed to both sides of the bottom of the second massage component 61 by welding, bolting, or other means. The slide groove 21 is opened at a preset position of the movable frame 2. The length direction of the slide groove 21 is consistent with the axial direction of the second rotating shaft 621. The cross-sectional shape of the slide groove 21 (such as rectangular or trapezoidal) is adapted to the cross-sectional shape of the protrusion 611, and a small fitting gap 114 is reserved between the protrusion 611 and the slide groove 21 to ensure that the protrusion 611 can slide smoothly in the slide groove 21 without excessive shaking. When the second eccentric member 622 of the second transmission component 62 drives the second massage component 61 to reciprocate, the second massage component 61 drives the protrusion 611 to slide along the length direction of the slide groove 21. The slide groove 21 restricts the lateral (perpendicular to the reciprocating motion direction) displacement of the protrusion 611, preventing the second massage component 61 from shifting left or right or twisting during the reciprocating motion. The cooperation between the protrusion 611 and the slide 21 can significantly improve the stability of the movement of the second massage component 61, ensuring that the tapping massage action can be accurately applied to the preset area and reducing the decrease in massage effect caused by movement deviation.

[0036] To achieve flexible control of the first transmission component 52 and the second transmission component 62, in one optional scheme, a one-way rotating member 7 is also included; the first rotating shaft 521 is connected to the driver 4 through the one-way rotating member 7; or the second rotating shaft 621 is connected to the driver 4 through the one-way rotating member 7; the driver 4 is a double-headed driver 4; one end of the driver 4 is connected to the first transmission component 52, and the other end is connected to the second transmission component 62; the driver 4 rotates forward or backward to drive the first transmission component 52 and the second transmission component 62.

[0037] One-way rotating component 7 can be a one-way bearing, and the outer ring of the one-way bearing is connected to the output end of driver 4 (e.g.) Figure 2 , 3The inner ring of the belts in components 4 and 6 is connected to either the first rotating shaft 521 or the second rotating shaft 621. When the first rotating shaft 521 is connected to one output shaft of the driver 4 via the one-way rotating member 7, when the driver 4 rotates forward, the outer ring of the one-way bearing drives the inner ring to rotate synchronously, thereby driving the first rotating shaft 521 to rotate. When the driver 4 rotates in reverse, the outer ring of the one-way bearing rotates, but the inner ring does not rotate accordingly, and the first rotating shaft 521 remains stationary. Similarly, if the second rotating shaft 621 is connected to the other output shaft of the driver 4 via the one-way rotating member 7, the driver 4 can drive the second rotating shaft 621 to rotate in reverse and remain stationary in forward rotation. The driver 4 is a dual-head motor, with its two output ends connected to the first rotating shaft 521 of the first transmission component 52 and the second rotating shaft 621 of the second transmission component 62, respectively. The direction of power transmission is determined by the configuration of the one-way rotating member 7. When the one-way bearing only acts on the first rotating shaft 521, the driver 4 can be controlled to rotate forward when the user needs to perform tapping massage alone. In this case, the first transmission component 52 operates, the first massage component 51 oscillates, and the second transmission component 62 does not operate. When the user needs to perform tapping massage and kneading simultaneously, the driver 4 can be controlled to rotate in reverse. In this case, the second transmission component 62 operates, the second massage component 61 reciprocates, and the first transmission component 52 operates synchronously. Adjusting the setting of the one-way rotating component 7 can also allow the driver 4 to drive one of the two components independently during forward and reverse rotation, forming various combined massage modes. This control method significantly improves the flexibility of the massage mechanism, allowing users to select different massage modes according to their needs, further enhancing the applicability of the mechanism.

[0038] The above description is merely a preferred embodiment of this utility model. The protection scope of this utility model is not limited to the above embodiments. All technical solutions falling within the scope of this utility model's concept are protected. It should be noted that for those skilled in the art, any improvements and modifications made without departing from the principle of this utility model should also be considered within the protection scope of this utility model.

Claims

1. A stable lifting and kneading mechanism, characterized in that, It includes a connecting frame, a movable frame that can move relative to the connecting frame, and an airbag assembly disposed on the connecting frame, wherein the airbag assembly drives the movable frame to move by inflating and deflating air; The mobile frame is equipped with a driver, a first massage component, and a first transmission component connected to the driving end of the driver; the first transmission component includes a first rotating shaft, first eccentric members installed at both ends of the first rotating shaft and connected to the first massage component, and a rotating shaft disposed between the two first eccentric members and connected to the first massage component; the driver drives the first rotating shaft to rotate, thereby causing the first eccentric members at both ends to rotate, so as to drive the two ends of the first massage component to swing around the rotating shaft. The mobile frame is also provided with a second massage component and a second transmission component connected to the drive end of the driver; The second transmission assembly includes a second rotating shaft and second eccentric members mounted at both ends of the second rotating shaft and the second massage assembly; the driver drives the second rotating shaft to rotate and drives the second massage assembly to reciprocate through the second eccentric members at both ends.

2. The stable lifting and kneading mechanism according to claim 1, characterized in that, The connecting frame is provided with a support component for guiding the movement of the moving frame; the support component provides support for the connecting frame to move along a preset trajectory, and when the airbag is inflated, it drives the moving frame to move along the preset trajectory.

3. The stable lifting and kneading mechanism according to claim 2, characterized in that, The support assembly includes a linkage mechanism consisting of a first connector, a second connector, and several connecting rods. Both the first and second connectors are connected to the linkage mechanism. The first connector is fixedly connected to the connecting frame, and the second connector is fixedly connected to the movable frame. The movable frame moves along a preset trajectory by inflating or deflating the airbag in coordination with the linkage mechanism. When the linkage mechanism is retracted, a gap is formed between the first and second connectors, and this gap helps to limit the movable frame from compressing the airbag.

4. The stable lifting and kneading mechanism according to claim 3, characterized in that, In the linkage mechanism, at least two links have at least partial projection overlap in the retraction direction. When the linkage mechanism is retracted to its final position, the overlapping portion of these two links forms an abutment, thereby creating a gap between the first and second connecting members; and / or In the linkage mechanism, at least two links have at least partial projection overlap in the linkage mechanism's unfolding direction. When the linkage mechanism is unfolded into place, the overlapping points of these two links form an abutment to create a maximum unfolding limit.

5. The stable lifting and kneading mechanism according to claim 1, characterized in that, The edges of the first eccentric members at both ends that are furthest from the axis of the first rotating shaft are arranged on both radial sides of the first rotating shaft.

6. The stable lifting and kneading mechanism according to claim 1, characterized in that, The line-plane angle formed by the axis of the second rotating shaft and the mating surface of the second massage component is greater than 0 degrees and less than 90 degrees.

7. The stable lifting and kneading mechanism according to claim 1, characterized in that, The second massage component is provided with a downward protrusion, and the movable frame is provided with a sliding groove for the protrusion to slide on the lower part of the second massage component. The protrusion is inserted into the slide groove and cooperates with the slide groove to allow the protrusion to reciprocate along the axial direction of the second rotation axis.

8. The stable lifting and kneading mechanism according to claim 1, characterized in that, It also includes unidirectional rotating parts; The first rotating shaft is connected to the driver via a one-way rotating component; Alternatively, the second rotating shaft may be connected to the driver via a one-way rotating component; The driver is a dual-head driver; One end of the driver is connected to the first rotating shaft, and the other end is connected to the second rotating shaft; The driver rotates forward or backward to drive the first and second rotating shafts.

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