Left-right push-pull massage head machine core

Abstract

The technical scheme belongs to the technical field of massagers, and particularly relates to a left-right push-pull massage head machine core which comprises a shell, a driving device arranged on the shell and a left-right massage device, the left-right massage device comprises two massagers symmetrically arranged on the left side and the right side of the shell, each massager comprises a massage head, the massage heads are movably arranged on the shell, and the left-right push-pull massage head machine core is arranged on the shell. The massage head comprises a movable seat and at least one massage mold hinged to the movable seat, a limiting groove is formed in the shell, and the movable seat is slidably arranged in the limiting groove; the linkage assembly is driven by the driving device; the linkage assembly comprises a deflection wheel rotationally arranged on the shell, an eccentric connecting piece and a moving seat, the eccentric connecting piece is movably arranged in the shell and eccentrically connected to the deflection wheel, and the moving seat is eccentrically connected to the eccentric connecting piece; the driving device directly or indirectly drives the deflection wheel to rotate in the axial direction of the deflection wheel, the deflection wheel drives the eccentric connecting piece to move correspondingly, the eccentric connecting piece drags the movable seat to reciprocate in the groove direction range of the limiting groove, and the massage effect is improved.

Description

Technical Field

[0001] This technical solution relates to the field of massager technology, specifically to a left-right push-pull massage head mechanism. Background Technology

[0002] A massager is a health care device designed based on the principles of physics, bionics, and traditional Chinese medicine. Driven by electricity, it simulates manual massage techniques such as kneading and percussion to help users relax muscles, relieve fatigue, and promote local blood circulation. It is suitable for massaging multiple areas such as the neck, shoulders, and feet.

[0003] Existing massage heads use traditional massage mechanisms that rely on motors and worm gear drives to achieve a single rotational motion. This massage mode, which achieves massage through rotational motion, has a fixed movement trajectory and monotonous techniques. Especially when used on areas with more pronounced curves, such as the shoulders, neck, and waist, these massage heads may not be able to reach the corresponding muscle layers according to the contours of the human body, resulting in uneven distribution of massage intensity, insufficient sense of layering in the massage operation, limited flexibility in the massage range, and poor massage effect. Summary of the Invention

[0004] This technical solution aims to improve the poor massage effect caused by the limited range of motion modes and insufficient adaptability of existing massage mechanisms by providing a left-right push-pull massage head mechanism.

[0005] The purpose of this technical solution is achieved as follows: A left-right push-pull massage head mechanism includes a housing, a drive device disposed on the housing, and left-right massage devices. The left-right massage devices include two massagers symmetrically arranged on the left and right sides of the housing, each massager comprising: A massage head, movably mounted on the housing, includes a movable base and at least one massage mold hinged to the movable base. The housing has a defining groove, and the movable base is slidably disposed within the defining groove. The linkage component is driven by the driving device; The linkage component includes a deflection wheel, an eccentric connector, and a movable seat, all rotatably disposed within the housing. The eccentric connector is movably disposed within the housing and eccentrically connected to the deflection wheel, and the movable seat is eccentrically connected to the eccentric connector. The driving device directly or indirectly drives the deflection wheel to rotate around its axis, and the deflection wheel drives the eccentric connector to move accordingly, so that the eccentric connector pulls the moving seat to move back and forth within the groove direction of the defined groove.

[0006] Through the above technical solution, when a left-right push-pull massage head mechanism is in normal use, the deflection wheel, eccentric connector, and movable seat are integrated into the housing. After the drive device is started, it directly or indirectly drives the deflection wheel to rotate around its axis. The rotational motion of the deflection wheel is converted into a composite motion of the eccentric connector along the plane, so that the eccentric connector both rotates and moves in the plane. The eccentric connector further pulls the movable seat to slide back and forth along the trajectory of the defined groove. Since the massage head is hinged on the movable seat, the massage head is close to the curved parts of the shoulders, neck, waist and back. The movable seat drives the massage head to produce a push-pull displacement in the left and right direction, and can adaptively deflect around the hinge point. The left and right massagers make mirror-symmetrical reciprocating push-pull movements. This structural layout can cover the left and right symmetrical parts of the human body, simulate the push and pull massage technique of human hands, realize synchronous massage, enhance massage depth, and improve massage effect.

[0007] Preferably, a fitting structure is provided between the housing and the movable base, the fitting structure comprising: A guide seat is disposed in the housing and arranged along the groove direction of the defined groove; A guide block is disposed at the bottom end of the movable seat; One of the guide seat and guide block has a groove, and the other has a protruding slider that matches the groove. The slider is fitted into the groove to guide the movement of the massage head.

[0008] With the above technical solution, the guide seat of the housing extends along the groove direction of the limiting groove, and a raised slider is provided on its upper side; the guide block at the bottom of the moving seat is provided with a corresponding sliding groove, and the slider and the sliding groove are fitted together to form a sliding pair, thereby providing radial constraint for the moving seat to ensure that its movement trajectory is strictly synchronized with the groove direction path of the limiting groove, reducing lateral swaying or derailment, and improving operational stability.

[0009] Preferably, the defining groove is an arc-shaped groove.

[0010] The above technical solution is used to design a curved groove with a radius of curvature optimized according to the physiological curves of common massage areas of the human body (such as the neck and shoulders). This allows the movement trajectory of the massage head to naturally present an arc-shaped path, which, compared to a straight groove, can better simulate the natural massage action of a human hand sliding along the curve of the body surface. Preferably, the deflecting wheel is provided with an eccentric post, and the eccentric connector is provided with a first eccentric hole for correspondingly fitting with the eccentric post.

[0011] Through the above technical solution, the eccentric column on the end face of the deflection wheel is fitted and connected with the first eccentric hole on the eccentric connector to form the first stage of eccentric transmission. The mating point between the eccentric column and the first eccentric hole is deviated from the rotation center of the deflection wheel itself, and also deviated from the center of the eccentric connector, which forces the eccentric connector to generate periodic translation while rotating around the eccentric column, so as to realize the transformation of rotation into planar motion of the eccentric connector.

[0012] Preferably, the eccentric connector is provided with an eccentric pin that matches the limiting groove, and the eccentric pin is limited to moving within the limiting groove; The movable seat is provided with a second eccentric hole for corresponding engagement with the eccentric pin.

[0013] Through the above technical solution, the eccentric pin on the eccentric connector is fitted and connected with the second eccentric hole of the moving seat to form a second-stage eccentric transmission. The position of the eccentric pin is far away from the rotation center of the eccentric connector. When the eccentric connector performs compound motion, the movement trajectory of the eccentric pin is a complex curve, which realizes the reciprocating movement of the moving seat along the arc groove of the limiting groove.

[0014] Preferably, a transmission structure is provided between the driving device and the deflection wheel, the transmission structure including a worm and a worm wheel, the worm wheel being coaxially mounted with the deflection wheel via a rotating shaft; The drive device is used to drive the worm to rotate, and the worm drives the worm wheel that meshes with it to rotate, so that the deflection wheel rotates synchronously.

[0015] With the above technical solution, the worm is directly driven by the motor, meshes with the worm wheel to transmit power, and the worm wheel drives the coaxially fixed deflection wheel to rotate synchronously, realizing the eccentric transmission of the subsequent deflection wheel.

[0016] Preferably, the housing includes a lower housing base, a matching upper housing cover, and a top cover disposed on the upper housing cover. The driving device and the transmission structure are both installed in the space between the lower housing base and the upper housing cover. The upper housing cover is provided with a positioning ring portion that matches the deflection wheel. The top cover is provided with the limiting groove and is used to cover the deflection wheel and the eccentric connector.

[0017] Through the above technical solution, the body adopts a layered modular design. The drive device, transmission structure and other components are installed in the sealed main space formed by the lower shell and the upper shell cover, and are protected. The positioning ring of the upper shell cover is used to accurately support and position the deflection wheel, and the top cover further covers the deflection wheel and eccentric connector and other moving parts, providing sufficient space for the movement of the eccentric connector, preventing dust from entering and further improving safety.

[0018] Preferably, the massage mold comprises, in sequence: The rolling section has a rolling cavity, in which a massage ball is movably installed, with the massage ball protruding from the upper opening of the rolling cavity; The circular pressing section has an arc-shaped surface on its outer end face; and The annular pressing section extends outward in an arc shape relative to the circular pressing section, and the annular pressing section has an annular pressing surface.

[0019] Through the above technical solution, the massage head is composed of one or more massage molds. The massage mold adopts a multi-segment structure. The massage balls in the rolling section can roll in all directions to achieve point rolling and stimulate acupoints. The circular pressing section presses through the arc surface to disperse pressure and avoid local stinging. The ring pressing section extends outward in an arc shape so that the ring pressing surface can fit against the muscle contour to perform grasping massage, simulating multiple types of techniques, adapting to the concavity and convexity of the body surface, and improving comfort.

[0020] Preferably, the movable seat is provided with a mounting block, and the circular pressing section is provided with a mounting groove that matches the mounting block; The movable seat is provided with a hinge rod, the mounting block has a hinge hole one corresponding to the hinge rod, and the circular pressing section has a hinge hole two corresponding to the hinge rod.

[0021] Through the above technical solution, the mounting groove of the massage head is aligned and fitted onto the matching mounting block, restricting the relative movement of the massage head along the hinge rod on the moving seat. The hinge rod passes through hinge hole one and hinge hole two to achieve the hinge of the massage head on the moving seat. When the massage head contacts the human body, due to the change in the curvature of the body surface, the massage head can slightly tilt and deflect around the hinge rod, so that the massage mold can fit the skin, thereby improving the massage effect.

[0022] Preferably, the housing contains an energy storage device for supplying power to the drive device.

[0023] Through the above technical solution, an energy storage device is integrated inside the casing. The energy storage device supports repeated charging and is connected to the drive device through wires to provide an independent power supply for the movement. The energy storage device can be charged and used, freeing it from the constraints of an external power cord, expanding application scenarios, and improving portability and ease of use.

[0024] The key and beneficial technical effects of this technical solution compared to existing technologies are: 1. This technical solution uses the linkage of the eccentric wheel, eccentric connector and moving seat to convert the rotational motion of the drive device into the pushing and pulling action of the massage head along the arc of the defined groove. The massage head, which is hinged to the moving seat, generates pushing and pulling displacement in the left and right directions. This structure simulates the pushing and pulling massage technique of human hand, effectively enhances the massage depth and adapts to the body curve, thus improving the massage effect.

[0025] 2. This technical solution forms a sliding pair by fitting the guide seat of the housing and the guide block at the bottom of the moving seat with a slider and a groove. This structure provides movement constraints for the moving seat, ensuring that its movement trajectory moves along the defined groove path, effectively reducing the risk of lateral swaying or derailment, and improving the accuracy of the left and right pushing and pulling movement of the massage head and the overall operational stability. Attached Figure Description

[0026] Figure 1 This is a schematic diagram of the overall structure of this embodiment; Figure 2 This is a partial explosion diagram of the movable seat and massage head in the embodiment; Figure 3 This embodiment Figure 2 Another perspective illustration; Figure 4 This is a partial exploded view of the linkage components in the embodiment; Figure 5 This is a partial cross-sectional view of the linkage component in the embodiment; Figure 6 This is a partial cross-sectional view along the hinge rod in the embodiment.

[0027] Reference numerals: 1. Housing; 101. Lower housing base; 102. Upper housing cover; 103. Top cover; 2. Drive unit; 3. Massager; 31. Massage head; 311. Moving base; 312. Massage mold; 41. Rolling section; 42. Circular pressing section; 43. Circular pressing section; 32. Linkage assembly; 321. Deflecting wheel; 322. Eccentric connector; 5. Limiting groove; 61. Guide seat; 62. Guide block; 7. Slide groove; 8. 9. Slider; 10. Eccentric column; 11. First eccentric hole; 12. Eccentric pin; 13. Second eccentric hole; 14. Transmission structure; 15. Worm; 16. Worm wheel; 17. Rolling chamber; 18. Massage ball; 19. Arc surface; 20. Ring pressing surface; 21. Mounting block; 22. Mounting groove; 23. Hinge rod; 24. Hinge hole one; 25. Hinge hole two; 26. Energy storage device; 27. Positioning ring; 28. Rotating shaft. Detailed Implementation

[0028] The specific implementation of this technical solution will be further described in detail below with reference to the accompanying drawings.

[0029] Example: See Figure 1 and Figure 4A left-right push-pull massage head mechanism includes a housing 1, a drive unit 2, and left and right massage devices. The left and right massage devices include two massagers 3 symmetrically arranged on the left and right sides of the housing 1. The housing 1 includes a lower housing base 101, an upper housing cover 102, and a top cover 103. The upper housing cover 102 matches the lower housing base 101, covering it and bolting it in place. Two top covers 103 are provided, each corresponding to one of the two massagers 3, and the top covers 103 are bolted to the side of the upper housing cover 102 opposite to the lower housing base 101. The drive unit 2 is preferably a dual-axis drive motor, which is mounted and fixed on the lower housing base 101 and the upper housing base 102. Within the space between the cover 102 and located in the middle of the housing 1, the drive device 2 adopts a dual-shaft drive. Each drive device 2 and each massager 3 is provided with a separate transmission structure 13. The transmission structure 13 includes a worm 131 and a worm wheel 132. The worm 131 is directly mounted on the output shaft on the corresponding side of the drive device 2 and is directly driven to rotate by the motor. The worm wheel 132 is rotatably connected to the corresponding side of the housing 1 through the rotating shaft 25. The toothed segments arranged on its periphery mesh with the threaded structure of the worm 131 to realize transmission and convert power into driving the massager 3. Alternatively, the transmission structure 13 can also be a rack and pinion.

[0030] The housing 1 is equipped with an energy storage device 23, which is located between the upper cover 102 and the lower housing 101 and is located on the side of the drive device 2. The energy storage device 23 is preferably a lithium battery, which is connected to the drive device 2 through wires to provide an independent power supply for the movement.

[0031] See Figure 4 and Figure 5 Each massager 3 includes a massage head 31 and a linkage component 32. The linkage component 32 includes a deflection wheel 321, an eccentric connector 322, and a movable seat 311. The deflection wheel 321 is located between the upper shell cover 102 and the corresponding top cover 103. The upper shell cover 102 has a positioning ring 24 protruding on the side near the top cover 103. Its outline matches the deflection wheel 321, and its inner side has a corresponding ring groove for the deflection wheel 321 to fit into, providing radial positioning and axial accommodation space. One end of the rotating shaft 25, which is coaxially arranged with the worm gear 132, passes through the upper shell cover 102 and passes through the center of the deflection wheel 321. The deflection wheel 321 and the worm gear 132 are coaxially arranged and can rotate axially around the rotating shaft 25. The two rotate synchronously.

[0032] The eccentric connector 322 is roughly circular in shape and is eccentrically connected above the deflection wheel 321. The eccentric connection is achieved by having an eccentric post 9 protruding from the end face of the deflection wheel 321 along its edge. The eccentric connector 322 has a first eccentric hole 10 through its edge for corresponding fitting with the eccentric post 9. In this embodiment, the end of the eccentric post 9 passes through the first eccentric hole 10 and is fitted with a bearing. When the deflection wheel 321 rotates, the eccentric connector 322 is pulled by the eccentric post 9 to generate periodic movements within the housing 1, causing the eccentric connector 322 to perform repeated planar movements along a specific trajectory.

[0033] The massage head 31 includes a movable seat 311 and at least one massage mold 312 hinged to the movable seat 311. The top cover 103 has a limiting groove 5, which is arc-shaped and its radius of curvature is optimized according to the physiological curve of common massage parts of the human body (such as the neck and shoulders). The movable seat 311 is slidably disposed in the limiting groove 5 on the housing 1 and is eccentrically connected to the eccentric connector 322. Specifically, an eccentric pin 11 protrudes from the end face of the eccentric connector 322. The eccentric pin 11 and the first eccentric hole 10 are located on opposite sides of the center of the eccentric connector 322. The diameter of the eccentric pin 11 matches the width of the limiting groove 5. It passes through the limiting groove 5 and is confined to the groove. The movable seat 311 has a second eccentric hole 12 for the corresponding fitting of the eccentric pin 11. The movement of the eccentric connector 322 is achieved by the eccentric pin 11 pulling the movable seat 311, thereby realizing the reciprocating movement of the movable seat 311 along the groove direction of the limiting groove 5.

[0034] See Figure 2 , Figure 3 and Figure 6 A fitting structure is provided between the top cover 103 and the movable seat 311. The fitting structure includes a guide seat 61 and a guide block 62. The guide seat 61 protrudes from the top cover 103 and consists of two parts arranged on both sides along the length of the limiting groove 5. The bottom of the movable seat 311 is provided with a guide block 62 corresponding to the guide seat 61. One of the guide seat 61 and the guide block 62 has a groove 7, and the other has a slider 8 that matches the groove 7. In this embodiment, the top of the guide seat 61 has a slider 8 protruding from the side opposite to the limiting groove 5. The inner side of the guide block 62 is provided with a groove 7 that passes through both ends of the guide block 62. The groove 7 and the slider 8 are fitted one-to-one to form a sliding pair like a slide rail guide block, which provides precise radial constraint and motion guidance for the movable seat 311 to ensure that its motion trajectory is synchronized with the preset path of the limiting groove 5.

[0035] Three massage molds 312 are arranged side by side on the movable base 311. Each massage mold 312 includes a rolling section 41, a circular pressing section 42, and a ring pressing section 43. When the massage mold 312 is installed in place, the rolling section 41 on the massage mold 312 is located on the inner side close to the drive device 2. The rolling section 41 has a rolling cavity 14, and a massage ball 15 is movably installed in the cavity. Part of the massage ball 15 protrudes from the upper opening of the rolling cavity 14 and can roll in all directions in the cavity. The massage ball 15 can roll freely according to the body curve and the direction of movement. The circular pressing section 42 connects the rolling section 41 and the ring pressing section 43. Its outer end face away from the movable base 311 has a smooth arc surface 16. The ring pressing section 43 extends outward in an arc shape relative to the circular pressing section 42 through a long arm. The ring pressing section 43 has a ring pressing surface 17. The massage mold 312 as a whole presents an L-shape that adapts to the contour of the body and implements grasping and pinching massage.

[0036] The movable seat 311 is provided with three mounting blocks 18, each corresponding to one of the three massage molds 312. Each mounting block 18 has a hinge hole 21. The circular pressing section 42 of the massage mold 312 has a mounting groove 19 that matches the mounting block 18. The mounting groove 19 is used to fit the mounting block 18. The circular pressing section 42 has a second hinge hole 22 corresponding to the hinge hole 21. When the hinge hole 21 and the second hinge hole 22 are aligned, the movable seat 311 is provided with a hinge rod 20. The hinge rod 20 passes through the hinge hole 21 and the second hinge hole 22, thereby hinged the massage mold 312 onto the movable seat 311. When the massage head 31 contacts the human body, due to the change in the curvature of the body surface, it can slightly tilt and deflect around the axis of the hinge rod 20. The massage mold 312 can conform to the skin, ensuring even distribution of massage force and improving the massage effect.

[0037] The specific work process of this plan is as follows: This technical solution integrates the deflection wheel 321, the eccentric connector 322, and the movable seat 311 inside the housing 1. After the drive device 2 is started, it directly or indirectly drives the deflection wheel 321 to rotate around its axis. The rotational motion of the deflection wheel 321 is converted into a composite motion of the eccentric connector 322 along the plane, so that the eccentric connector 322 both rotates and moves in the plane. The eccentric connector 322 further pulls the movable seat 311 to slide back and forth along the trajectory of the defined groove 5. Since the massage head 31 is hinged on the movable seat 311, the massage head 31 is close to the curved parts of the shoulders, neck, waist and back. The movable seat 311 drives the massage head 31 to produce a push-pull displacement in the left and right direction, and can adaptively deflect around the hinge point. The left and right massagers 3 make mirror-symmetrical push-pull movements. This structural layout can cover the left and right symmetrical parts of the human body, simulate the push and pull massage technique of human hands, realize synchronous massage, enhance the massage depth, and improve the massage effect.

[0038] The foregoing has shown and described the basic principles, main features, and advantages of this technical solution. Those skilled in the art should understand that this technical solution is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this technical solution. Various changes and modifications can be made to this technical solution without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed technical solution. The scope of protection of this technical solution is defined by the appended claims and their equivalents.

Claims

1. A left-right push-pull massage head mechanism, comprising a housing (1), a drive device (2) disposed on the housing (1), and a left-right massage device, wherein the left-right massage device comprises two massagers (3) symmetrically arranged on the left and right sides of the housing (1), characterized in that, Each of the massagers (3) includes: A massage head (31) is movably mounted on the housing (1). The massage head (31) includes a movable base (311) and at least one massage mold (312) hinged to the movable base (311). The housing (1) has a limiting groove (5), and the movable base (311) is slidably disposed in the limiting groove (5) on the housing (1). The linkage component (32) is driven by the driving device (2); The linkage component (32) includes a deflection wheel (321) rotatably disposed in the housing (1) and an eccentric connector (322). The eccentric connector (322) is movably disposed in the housing (1) and eccentrically connected to the deflection wheel (321). The movable seat (311) is eccentrically connected to the eccentric connector (322). The driving device (2) directly or indirectly drives the deflection wheel (321) to rotate around its axis. The deflection wheel (321) drives the eccentric connector (322) to move accordingly, so that the eccentric connector (322) pulls the moving seat (311) to move back and forth within the groove direction of the limiting groove (5).

2. The left-right push-pull massage head mechanism according to claim 1, characterized in that: A fitting structure is provided between the housing (1) and the movable base (311), the fitting structure comprising: A guide seat (61) is disposed on the housing (1) and disposed along the groove direction of the defining groove (5); A guide block (62) is disposed at the bottom end of the movable seat (311); One of the guide seat (61) and the guide block (62) has a groove (7), and the other has a slider (8) that matches the groove (7). The slider (8) is fitted into the groove (7) to guide the movement of the massage head (31).

3. The left-right push-pull massage head mechanism according to claim 1, characterized in that: The limiting groove (5) is an arc-shaped groove.

4. The left-right push-pull massage head mechanism according to claim 1, characterized in that: The deflection wheel (321) is provided with an eccentric post (9), and the eccentric connector (322) is provided with a first eccentric hole (10) for corresponding fitting with the eccentric post (9).

5. The left-right push-pull massage head mechanism according to claim 1, characterized in that: The eccentric connector (322) is provided with an eccentric pin (11) that matches the limiting groove (5), and the eccentric pin (11) is limited to moving within the limiting groove (5); The movable seat (311) is provided with a second eccentric hole (12) for correspondingly fitting with the eccentric pin (11).

6. The left-right push-pull massage head mechanism according to claim 1, characterized in that: A transmission structure (13) is provided between the drive device (2) and the deflection wheel (321). The transmission structure (13) includes a worm (131) and a worm wheel (132). The worm wheel (132) is coaxially arranged with the deflection wheel (321) through a rotating shaft (25). The drive device (2) is used to drive the worm (131) to rotate, and the worm (131) drives the worm wheel (132) meshing with it to rotate, so that the deflection wheel (321) rotates synchronously.

7. The left-right push-pull massage head mechanism according to claim 6, characterized in that: The housing (1) includes a lower housing base (101), a matching upper housing cover (102), and a top cover (103) disposed on the upper housing cover (102). The driving device (2) and the transmission structure (13) are both installed in the space between the lower housing base (101) and the upper housing cover (102). The upper housing cover (102) is provided with a positioning ring (24) that matches the deflection wheel (321). The top cover (103) is provided with the limiting groove (5). The top cover (103) is used to cover the deflection wheel (321) and the eccentric connector (322).

8. The left-right push-pull massage head mechanism according to claim 1, characterized in that: The massage mold (312) comprises, in sequence: The rolling section (41) has a rolling cavity (14) in which a massage ball (15) is movably installed, and the massage ball (15) protrudes from the upper opening of the rolling cavity (14); The circular pressing section (42) has an arc-shaped surface (16) on its outer end face; and The annular pressing section (43) extends outward in an arc shape relative to the circular pressing section (42), and the annular pressing section (43) has an annular pressing surface (17).

9. The left-right push-pull massage head mechanism according to claim 8, characterized in that: The movable seat (311) is provided with a mounting block (18), and the circular pressing section (42) of the massage mold (312) is provided with a mounting groove (19) that matches the mounting block (18); The movable seat (311) is provided with a hinge rod (20), the mounting block (18) is provided with a hinge hole (21) corresponding to the hinge rod (20), and the circular pressing section (42) is provided with a hinge hole (22).

10. The left-right push-pull massage head mechanism according to claim 1, characterized in that: The housing (1) is provided with an energy storage device (23) for supplying power to the drive device (2).

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