Head massager

Abstract

To provide an improved head massager.SOLUTION: The transmission assembly comprises a gear set, a swing rod assembly and a driving unit for driving the gear set, the swing rod assembly comprises a swing rod body and a sliding member hinged to one end of the swing rod body, the sliding member slides between a first position and a second position, the swing rod body passes through the housing and is hinged to the housing, the other end of the swing rod body is connected to the massage head, and the gear set comprises a driving gear, an end surface of the driving gear is provided with an irregular protrusion; A side wall of the irregular protrusion is in contact with and slidably fitted with an end portion of the sliding member, the side wall of the irregular protrusion is alternately provided with deep grooves and shallow grooves, the sliding member is located at the first position when abutting against bottoms of the deep grooves, the sliding member is located at the third position when abutting against bottoms of the shallow grooves, and the third position is located between the first position and the second position. The massager enables the massage head to periodically swing back and forth with different amplitudes, thereby improving the head massage effect.SELECTED DRAWING: Figure 1

Description

[Technical Field]

[0001] The present invention relates to the field of healthcare equipment, and in particular to head massagers. [Background technology]

[0002] A head massager is a massage tool that can relieve dizziness and headaches, relax the brain nerves, relieve stress, improve sleep quality, and alleviate fatigue.

[0003] Head massagers currently available on the market are very popular among consumers because they are easy to use and portable, and adding a corresponding liquid medicine can further promote hair growth.

[0004] Existing head massagers have various massage methods, most of which use vibration or swinging rods to perform massage, and the movement method of the massage head in the head massager is mainly rotation and rotation. After using and investigating, it has been found that head massagers using the above massage methods need to improve both massage intensity and comfort, and even cause head discomfort and even head heaviness and pain, resulting in poor head massage effectiveness. Summary of the Invention [Problem to be solved by the invention]

[0005] To provide a head massager in which the massage head is oscillated back and forth periodically at different widths, which avoids discomfort or pain caused by too early contact, improves massage intensity and comfort, enhances the effect of head massage, and increases the comfort of the user's experience. [Means for solving the problem]

[0006] To this end, the present invention provides A head massager comprising a case, a transmission assembly partially extending from the case, and a massage head provided outside the case, the transmission assembly being used to drive the massage head to oscillate, the transmission assembly comprising a group of gears, a drive unit for driving the group of gears to rotate, and a swing rod assembly, the swing rod assembly comprising a swing rod body that passes through the case and is hingedly connected to the case, and a sliding member that is hingedly connected to one end of the swing rod body and is slidable between a first position and a second position relative to the case, and a sliding member that is hingedly connected to the other end of the swing rod body. is connected to the massage head, the gear group includes a drive gear rotatably connected to the case and having an irregularly shaped protrusion on one end surface, the side wall of the irregularly shaped protrusion abuts against an end of the sliding member and is slidably fitted together, the side wall of the irregularly shaped protrusion is provided with several deep grooves and several shallow grooves alternately, when the sliding member abuts against the groove bottom of the deep grooves, the sliding member is located at the first position, and when the sliding member abuts against the groove bottom of the shallow grooves, the sliding member is located at the third position, and the third position is located between the first position and the second position.

[0007] In a preferred technical solution of the head massager, the cross section of the irregular protrusion is X-shaped, there are two deep grooves and two shallow grooves, there is a protrusion between the adjacent deep groove and shallow groove, when the top of the sliding material and the protrusion are abutted against each other, the sliding material is located at the second position, the other end of the sliding material is an arc-shaped surface, the deep groove is an arc-shaped groove, the shallow groove is an arc-shaped groove, and the protrusion is an arc-shaped protrusion.

[0008] As a preferred technical solution for the head massager, the case has the same number of case through holes as the oscillating rod bodies, and the inner wall has guide rods installed therein. The central part of each oscillating rod body passes through one of the case through holes and is hingedly connected to one of the guide rods, so that the oscillating rod body oscillates along the axis of the guide rod.

[0009] As a preferred technical solution for the head massager, the case comprises a case lid and a case seat removably connected to the case lid, the case through-hole is opened in the case lid, the drive unit is removably connected to the case seat, several rotating shafts are fixed to the case seat, the gear group is rotatably connected to the case seat via the rotating shafts, and the longitudinal direction of the rotating shafts is parallel to the output shaft of the drive unit.

[0010] As a preferred technical solution of the head massager, the oscillating rod assembly further includes a connecting arm, one end of the oscillating rod body is rotatably connected to one end of the connecting arm via a first insert pin, the other end of the connecting arm is rotatably connected to the sliding material via a second insert pin, the axis of the first insert pin is parallel to the axis of the guide rod, and the axis of the second insert pin is parallel to the axis of the guide rod.

[0011] As a preferred technical solution of the head massager, the gear group further includes a main driving gear and a double gear, the double gears and the driving gears are the same in number and correspond one to one, the output shaft of the driving unit is fixed coaxially to the main driving gear, the driving unit is used to move the main driving gear to rotate along its axis, the driven teeth of all the double gears are meshed with the main driving gear, and the main driving teeth of each of the double gears are meshed with one of the driving gears.

[0012] In a preferred technical solution of the head massager, one end of the sliding material is elastically connected to the case via a thrust elastic material, and the thrust elastic material is used to push the sliding material away from the case, and the side wall of the irregularly shaped protrusion and the other end of the sliding material are slidably fitted together.

[0013] In a preferred technical solution of the head massager, an annular groove is recessed at the end of the sliding material, a guide shaft is protruded at the end of the sliding material, the axis of the guide shaft and the axis of the annular groove are overlapped, and the thrust elastic member is fitted onto the guide shaft and one end is attached within the annular groove.

[0014] As a preferred technical solution for the head massager, the oscillating rod assembly further comprises a pressure elastic material, and the other end of the oscillating rod body is provided with a guide groove into which the lifting rod is inserted, and both ends of the pressure elastic material are pressed against the groove bottom of the guide groove and one end of the lifting rod, respectively, and the massage head is fixed to the other end of the lifting rod, and the pressure elastic material is used to drive the lifting rod away from the groove bottom of the guide groove.

[0015] As a preferred technical solution for the head massager, a guide rail is fixed to the groove wall of the case, the length direction of which is perpendicular to the height direction of the irregularly shaped protrusion, and the guide rail is slidably fitted into a sliding groove provided on the side wall of the sliding material so that the sliding material moves between the first position and the second position. [Effects of the Invention]

[0016] The beneficial effects of the present invention are as follows: This head massager adopts a design in which the oscillating rod body is driven by an irregular protrusion, and the drive unit can move the massage head to oscillate back and forth periodically at different widths through precise transmission of the gear group and the oscillating rod assembly. The back and forth oscillation of the massage head can simulate the scalp being scratched by a human hand, thereby improving the massage intensity and comfort and enhancing the massage effect on the head.

[0003] The design in which the oscillating rod body is hinged to the case and the slider is hinged to one end of the oscillating rod body, combined with the restriction that the slider slides between a first position and a second position, allows the irregularly shaped protruding sidewall to push the slider, driving the oscillating rod body to oscillate regularly. This transmission structure effectively reduces the friction between the drive gear and the slider, reducing power loss during the transmission process and preventing the oscillating rod assembly from malfunctioning due to excessive force, contributing to the realization of a powerful massage action for the massage head. Furthermore, the alternating deep and shallow grooves allow the slider to alternate between large strokes (i.e., the section where the slider contacts the wall of the deep groove) and small strokes (i.e., the section where the slider contacts the wall of the shallow groove), resulting in the massage head alternately oscillating between large and small strokes. The design of the massage head alternating between large and small oscillations helps to avoid situations where the massage head makes contact too quickly, causing discomfort or pain to the user's head, and contributes to a more comfortable user experience. [Brief explanation of the drawings]

[0017] [Figure 1] 1 is a structural schematic diagram of a head massager according to an embodiment of the present invention; [Figure 2] 1 is an exploded view of a head massager according to an embodiment of the present invention. [Figure 3] FIG. 3 is an enlarged view of a portion A in FIG. 2. [Figure 4] FIG. 3 is an enlarged view of a portion B in FIG. [Figure 5] 2 is a structural schematic diagram of a gear group and a swing rod assembly according to an embodiment of the present invention; FIG. [Figure 6]2 is a structural schematic diagram of a main gear, a two-stage gear, a driving gear and a swing rod assembly according to an embodiment of the present invention; FIG. [Figure 7] FIG. 2 is an exploded view of a swing rod assembly according to an embodiment of the present invention. [Figure 8] 1 is a structural schematic diagram of a drive gear according to an embodiment of the present invention; [Figure 9] FIG. 2 is a partial cross-sectional view of a case seat and a sliding member according to an embodiment of the present invention. DETAILED DESCRIPTION OF THE INVENTION

[0018] The technical solutions of the present invention will be described clearly and completely below with reference to the drawings, and it is clear that the described embodiments are only some of the embodiments of the present invention, not all of the embodiments. All other embodiments that can be obtained by those skilled in the art based on the embodiments of the present invention without any creative work fall within the scope of protection of the present invention.

[0019] In describing the present invention, the orientations or positional relationships indicated by the terms "center," "top," "bottom," "left," "right," "vertical," "horizontal," "inside," "outside," etc. are based on the orientations or positional relationships shown in the drawings and are intended solely to facilitate and simplify the description of the present invention. They do not indicate or imply that such devices or elements must have a specific orientation, be configured, or operate in a specific orientation, and therefore should not be understood as limiting the present invention. Furthermore, the terms "first" and "second" are for illustrative purposes only and should not be understood as indicating or implying relative importance. The terms "first position" and "second position" refer to two different positions, and further, the presence of a first feature "above," "above," and "on the top surface" of a second feature includes the first feature being directly above and diagonally above the second feature, or simply indicates that the horizontal height of the first feature is higher than that of the second feature. A first feature being "below," "underneath," and "below" a second feature includes the first feature being directly below and diagonally below the second feature, or simply indicating that the first feature has a lower horizontal height than the second feature.

[0020] In the description of the present invention, unless otherwise clearly specified or limited, the terms "attach," "connect," and "connect" should be understood in a broad sense, and may refer to, for example, a fixed connection, a detachable connection, or integration, a mechanical connection, an electrical connection, a direct connection, an indirect connection via an intermediate medium, or internal communication between two elements. Those skilled in the art will be able to understand the specific meanings of the above terms in the present invention according to specific circumstances.

[0021] Hereinafter, the embodiments of the present invention will be described in detail. Examples of the described embodiments are shown in the drawings, in which the same or similar reference numerals throughout indicate the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the drawings are merely illustrative and are intended to help interpret the present invention, but should not be understood as limiting the present invention.

[0022] As shown in FIGS. 1 to 9, this embodiment provides a head massager including a case 100, a transmission assembly, and a massage head 200. The massage head 200 is provided outside the case 100. The transmission assembly partially protrudes from the case 100 and is used to drive the massage head 200 to swing. The transmission assembly includes a gear group 300, a drive unit 900, and a swing rod assembly 400. The drive unit 900 is used to drive the gear group 300 to rotate. The swing rod assembly 400 includes a swing rod body 430 and a sliding member 460 hingedly connected to one end of the swing rod body 430. The sliding member 460 is slidably connected to the case 100. The sliding member 460 can slide between a first position and a second position relative to the case 100. The swing rod body 430 passes through the case 100 and is hingedly connected to the case 100, and the other end of the swing rod body 430 is connected to the massage head 200. The gear group 300 includes a drive gear 330 rotatably connected to the case 100. One end surface of the drive gear 330 is provided with an irregularly shaped protrusion 331, and the side wall of the irregularly shaped protrusion 331 and the end of the sliding member 460 abut against each other and are slidably fitted. The side wall of the irregular protrusion 331 is provided with several deep grooves 332 and several shallow grooves 333 arranged alternately, and when the sliding material 460 and the groove bottom of the deep grooves 332 are abutted against each other, the sliding material 460 is located at a first position, and when the sliding material 460 and the groove bottom of the shallow grooves 333 are abutted against each other, the sliding material 460 is located at a third position, which is located between the first position and the second position.

[0023] This head massager adopts a design in which the oscillating rod body 430 is driven by the irregular protrusion 331, and the drive unit 900 can move the massage head 200 to oscillate back and forth periodically at different widths through precise transmission of the gear group 300 and the oscillating rod assembly 400. The back and forth oscillation of the massage head 200 can simulate the scalp being scratched by a human hand, thereby improving the massage intensity and comfort and enhancing the massage effect on the head. Among them, the design in which the oscillating rod body 430 is hingedly connected to the case 100 and the slider 460 is hingedly connected to one end of the oscillating rod body 430, combined with the restriction that the slider 460 slides between the first position and the second position, allows the side wall of the irregular protrusion 331 to push the slider 460, thereby driving the oscillating rod body 430 to oscillate regularly. The above transmission structure effectively reduces the friction force between the driving gear 330 and the slider 460, reduces power loss during the transmission process, prevents the oscillating rod assembly 400 from malfunctioning due to the force, and contributes to realizing a powerful massage action of the massage head 200. Furthermore, by alternately providing the deep grooves 332 and the shallow grooves 333, the slider 460 can alternate between large strokes (i.e., the section where the slider 460 contacts the groove wall of the deep groove 332) and small strokes (i.e., the section where the slider 460 contacts the groove wall of the shallow groove 333), so that the massage head 200 alternates between large and small oscillations. The design of the massage head 200 alternating between large and small oscillations can prevent the massage head 200 from contacting the head too quickly, causing discomfort or pain to the user's head, and contributes to improving the comfort of the user's experience.

[0024] Specifically, when the sliding member 460 and the side wall of the irregular protrusion 331 abut against each other, the sliding member 460 is located at the second position. As can be seen from this, during the large stroke of the sliding member 460, the sliding member 460 first moves from the second position to the first position and then returns to the second position, and during the small stroke of the sliding member 460, the sliding member 460 first moves from the second position to the third position and then returns to the second position.

[0025] For example, one end of the sliding material 460 is elastically connected to the case 100 via the thrust elastic material 450, which is used to push the sliding material 460 away from the case 100, and the side wall of the irregular protrusion 331 and the other end of the sliding material 460 are slidably engaged with each other.

[0026] The thrust elastic member 450 is designed to push the slider 460 away from the case 100, ensuring that the other end of the slider 460 always abuts against the side wall of the irregular protrusion 331, and that the slider 460 moves to a predetermined position. The above improvements realize an improvement to the structure of the slider 460, reduce the space occupied by the slider 460, and simplify the specific structure of the swing rod assembly 400.

[0027] Furthermore, an annular groove 462 is recessed at the end of the sliding material 460, and a guide shaft 463 is protruded at the end of the sliding material 460, with the axis of the guide shaft 463 overlapping the axis of the annular groove 462, and the thrust elastic material 450 is fitted onto the guide shaft 463 and one end is attached within the annular groove 462.

[0028] The annular groove 462 and the guide shaft 463 allow the thrust elastic member 450 to be smoothly mounted on the slider 460. The annular groove 462 provides a space for accommodating a portion of the thrust elastic member 450, and the guide shaft 463 serves the purpose of guiding the thrust elastic member 450, ensuring that the thrust elastic member 450 can deform according to a predetermined requirement and guarantee stable operation of the thrust elastic member 450. The specific structure of the slider 460 is limited to prevent the thrust elastic member 450 from accidentally falling off when the slider 460 slides back and forth frequently. When the slider 460 moves in the first direction, the reaction force of the housing seat 120 can push the slider 460, thereby preventing the slider 460 from failing to work during the reciprocating motion.

[0029] In this embodiment, the cross section of the irregular protrusion 331 is X-shaped, and there are two deep grooves 332 and two shallow grooves 333. A protrusion 334 is formed between each adjacent deep groove 332 and shallow groove 333. When the tops of the protrusions 334 meet the slider 460, the slider 460 is in a second position. The other end of the slider 460 has an arc-shaped surface, the deep groove 332 is an arc-shaped groove, the shallow groove 333 is an arc-shaped groove, and the protrusion 334 is an arc-shaped protrusion. By limiting the specific shape of the irregular protrusion 331 as described above, the structure of the irregular protrusion 331 is optimized, ensuring that the slider 460 alternates between large-width strokes and small-width strokes. This limitation also reduces the space occupied by the irregular protrusion 331 and reduces the production cost of the drive gear 330. The provision of the protrusion 334 ensures that the slider 460 can move smoothly to the second position, and the provision of the protrusion 334 helps the slider 460 to slide more smoothly against the irregular protrusion 331, thereby preventing the slider 460 from failing. Specifically, the groove walls of the deep groove 332 and the shallow groove 333 both smoothly transition with the side walls of the irregular protrusion 331, and the transitions between the protrusion 334 and the deep groove 332, and between the protrusion 334 and the shallow groove 333 are smooth.

[0030] Furthermore, case 100 is formed with case through holes 111, the number of which is the same as the number of swing rod bodies 430, and guide rods 112 are provided on the inner walls of case through holes 111, and the center portions of each swing rod body 430 pass through one case through hole 111 and are hingedly connected to one guide rod 112, so that swing rod bodies 430 swing along the axis of guide rod 112. Specifically, guide holes 432 are formed on the side walls of swing rod body 430, and guide rods 112 are inserted into and rotatably fitted into guide holes 432.

[0031] The case through-hole 111 and the guide rod 112 form a hinged connection between the case 100 and the swing rod body 430, ensuring that the swing rod body 430 can swing smoothly along the axis of the guide rod 112. The above design is simple and reliable, occupies little space, and has high connection stability, ensuring stable operation of the swing rod assembly 400 over the long term.

[0032] Illustratively, the oscillating rod assembly 400 further includes a connecting arm 480, one end of the oscillating rod body 430 being rotatably connected to one end of the connecting arm 480 via a first insert pin 470, the other end of the connecting arm 480 being rotatably connected to the sliding member 460 via a second insert pin 490, the axis of the first insert pin 470 being parallel to the axis of the guide rod 112, and the axis of the second insert pin 490 being parallel to the axis of the guide rod 112. The installation of the connecting arm 480 realizes a smooth hinge connection between the oscillating rod body 430 and the slider 460, ensuring that the slider 460 can smoothly drive relative to the oscillating rod body 430 and reducing the risk of the oscillating rod body 430 becoming misaligned, thereby ensuring smooth transmission of the oscillating rod assembly 400 and ensuring stable operation of the head massager over a long period of time.

[0033] Specifically, the slider 460 is in a first position, a second position, and a third position, and the angle between the swing rod body 430 and the case 100 can be adjusted by adjusting the shape of the connecting arm 480 and the hinge connection position, thereby realizing the limitation of the swing range for large and small swings of the massage head 200. The specific adjustment methods are conventional technical means in the art and are well known to those skilled in the art, so they will not be described again here.

[0034] In this embodiment, a plurality of massage heads 200 are provided, the oscillating rod assemblies 400 and the massage heads 200 are the same in number and have a one-to-one correspondence, and the driving gears 330 and the oscillating rod assemblies 400 are the same in number and have a one-to-one correspondence. The design of the plurality of driving gears 330 and the plurality of oscillating rod assemblies 400 allows the driving unit 900 to simultaneously drive the plurality of massage heads 200, improving the operating efficiency. At the same time, it also contributes to planning the movement rules of all massage heads 200 and realizing synchronous control of all massage heads 200. The above improvements contribute to optimizing the movement trajectories of the massage heads 200, improving the massage intensity and comfort of the head massager, and enhancing the head massage effect.

[0035] Specifically, the number of massage heads 200 is six. The head massager can simultaneously operate the six massage heads 200 through the above simple mechanical movements, resulting in high operating efficiency and excellent practical performance.

[0036] The gear group 300 further includes a main driving gear 310 and a double gear 320, the double gears 320 and the driving gears 330 being the same in number and in one-to-one correspondence, the output shaft of the driving unit 900 being coaxially fixed to the main driving gear 310, the driving unit 900 being used to drive the main driving gear 310 to rotate along its own axis, the driven teeth of all the double gears 320 meshing with the main driving gear 310, and the driven teeth of each double gear 320 meshing with one driving gear 330. Specifically, the six double gears 320 are uniformly distributed around the axis of the main driving gear 310.

[0037] The provision of the main driving gear 310 and the double gear 320 fulfills the transmission purpose of the gear group 300, enables the driving unit 900 to precisely drive each driving gear 330, and ensures that the oscillating rod assembly 400 can drive the massage head 200 along a predetermined trajectory, thereby completing the oscillation motion of the massage head 200 and realizing stable operation of the head massager. The above structure is simple and reliable, has good transmission effect, occupies little space, and ensures efficient and stable operation of the gear group 300.

[0038] Specifically, the driving gear 330 and the main driving gear 310 rotate in the same direction, the dual gear 320 and the main driving gear 310 rotate in opposite directions, and the driving gear 330 and the dual gear 320 rotate in opposite directions.

[0039] Furthermore, within the plane in which any one of the swing rod bodies 430 swings relative to the case 100, there are also the axis of the corresponding drive gear 330, the axis of the corresponding double gear 320, and the axis of the main driving gear 310.

[0040] By limiting the above positions, the relative positional relationship between the oscillating rod assembly 400 and the corresponding driving gear 330, the corresponding double gear 320 and the main driving gear 310 is planned, ensuring the transmission effect, reducing the space occupied, avoiding the risk of malfunction between the oscillating rod assembly 400 and the gear group 300, and ensuring smooth transmission of the massage head 200 by the drive unit 900.

[0041] In this embodiment, the oscillating rod assembly 400 further includes a pressing elastic material 420, a guide groove 431 is provided at the other end of the oscillating rod body 430, the lifting rod 410 is inserted into the guide groove 431, both ends of the pressing elastic material 420 are pressed against the bottom of the guide groove 431 and one end of the lifting rod 410, respectively, the massage head 200 is fixed to the other end of the lifting rod 410, and the pressing elastic material 420 is used to drive the lifting rod 410 away from the bottom of the guide groove 431.

[0042] The installation of the pressure elastic member 420 allows the massage head 200 to move along the length of the lifting rod 410 relative to the swing rod body 430. Due to the above limitations, the lifting rod 410 is tightly fitted to the swing rod body 430 by the pre-load of the pressure elastic member 420, and when using the head massager to massage the head, the lifting rod 410 with the massage head 200 attached is pushed by the scalp and approaches the bottom of the guide groove 431. The design that allows the massage head 200 to be pushed appropriately during use reduces the contact strength between the massage head 200 and the scalp, mitigating the impact of the massage head 200 on the head and improving the abutment condition between the massage head 200 and the scalp, thereby contributing to an improved massage effect of the head massager on the scalp.

[0043] Furthermore, the swing rod assembly 400 further includes a third insert pin 440, and the lift rod 410 further includes a retracting hole. The third insert pin 440 is connected to the swing rod body 430 and passes through the retracting hole. The retracting hole is an elongated hole that extends along the length of the lift rod 410. When the side surface of the third insert pin 440 contacts the hole wall of the retracting hole, the lift rod 410 will not move relative to the swing rod body 430. This limits the movement position of the lift rod 410 relative to the swing rod body 430, prevents the lift rod 410 from accidentally separating from the swing rod body 430, and ensures stable operation of the swing rod assembly 400 over a long period of time.

[0044] Specifically, the pressure elastic member 420 and the thrust elastic member 450 are both expansion springs.

[0045] For example, a guide rail 121 is fixed to the groove wall of the case 100, and the length direction of the guide rail 121 is perpendicular to the height direction of the irregular protrusion 331. A sliding groove 461 is provided on the side wall of the sliding member 460, and the guide rail 121 is slidably fitted into the sliding groove 461 so that the sliding member 460 moves between a first position and a second position. The fitting of the guide rail 121 and the sliding groove 461 meets the design requirement for the sliding member 460 to be slidably connected to the case 100, ensures that the sliding member 460 can move smoothly between the first position and the second position, and further guarantees stable operation of the swing rod assembly 400.

[0046] Furthermore, a positioning blind hole 122 is further recessed into the groove wall of the case 100, and a guide post extending along the length of the slider 460 is protruded from one end of the slider 460, and one end of the thrust elastic member 450 is fitted into the guide post, and the other end is attached to the groove bottom of the positioning blind hole 122. The positioning blind hole 122 and the guide post improve the positioning ability of the thrust elastic member 450, reduce the risk of irreversible deformation caused by deformation due to the force of the thrust elastic member 450, and extend the service life of the head massager. The above design also realizes an optimized arrangement for the space within the case 100, contributing to a reduction in the space occupied by the head massager.

[0047] Specifically, a support block 124 is further protruded from the groove wall of the case 100, and the support block 124 serves to support the sliding member 460 from the side, reducing the risk of the sliding member 460 suddenly coming off the guide rail 121 and improving the structural stability of the head massager.

[0048] In this embodiment, the case 100 comprises a case lid 110 and a case seat 120 that is removably connected to the case lid 110, a case through-hole 111 is opened in the case lid 110, the drive unit 900 is removably connected to the case seat 120, several rotating shafts are fixed to the case seat 120, and the gear group 300 is rotatably connected to the case seat 120 via the rotating shafts, and the longitudinal direction of the rotating shafts is parallel to the output shaft of the drive unit 900.

[0049] The provision of the case cover 110 and the case base 120 allows for a separate design of the case 100, reducing the production costs of the case 100 and the difficulty of assembling the head massager. The case through-hole 111 is provided in the case cover 110, and the drive unit 900 and gear group 300 are attached to the case base 120, which in combination achieves an optimized design for the structure of the head massager. Meanwhile, the restriction that the length direction of the rotation axis is parallel to the output shaft of the drive unit 900 ensures the transmission effect of the gear group 300, simplifies the specific structure of the gear group 300, and reduces the space occupied by the gear group 300 within the case 100, contributing to the realization of a lightweight design for the head massager.

[0050] The rotating shafts include a first rotating shaft and a second rotating shaft 123, the first rotating shafts are the same in number as the double gears 320, and each double gear 320 is rotatably connected to one first rotating shaft, and each double gear 320 rotates along the axis of the corresponding first rotating shaft, and the second rotating shafts 123 are the same in number as the drive gears 330, and each drive gear 330 is rotatably connected to one second rotating shaft 123, and each drive gear 330 rotates along the axis of the corresponding second rotating shaft 123.

[0051] The drive unit 900 and gear group 300 are installed in the case 100, and the slider 460, connecting arm 480, and swing rod body 430 are assembled and connected using the first and second insert pins 470 and 490. The slider 460 is then attached to the guide rail 121 and elastically connected to the case 100 via the thrust elastic member 450. The pressure elastic member 420 and lifting rod 410 are then installed in the guide groove 431, and the position of the lifting rod 410 is restricted using the third insert pin 440. After the assembly of the swing rod assembly 400 is completed, the case cover 110 is closed, and the swing rod body 430 and guide rod 112 are rotatably fitted together. Finally, the massage head 200 is attached to the lifting rod 410. Specifically, the drive unit 900 is a motor.

[0052] For example, the head massager further includes a battery mounted in the case 100 and a button for controlling power on / off between the battery and the drive unit 900. When the button is turned on, the battery activates the motor via the main board, and the motor rotates the gear group 300. When the drive gear 330 rotates, the oscillating rod body 430 performs a reciprocating motion, oscillating back and forth from side to side. At this time, the oscillating rod body 430 moves the massage head 200 to perform a reciprocating motion, oscillating back and forth from side to side. When the button is turned off, the motor is cut off, and the gear group 300, the oscillating rod assembly 400, and the massage head 200 stop operating.

[0053] It is clear that the above-described examples of the present invention are merely examples given to clearly explain the present invention and do not limit the embodiments of the present invention. Those skilled in the art can make other different types of changes or variations based on the above description. There is no need or method to list all the embodiments here. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included within the scope of the claims of the present invention. [Explanation of symbols]

[0054] 100 cases 110···Case lid 111 Case through hole 112...guide rod 120···Case seat 121 Guide rail 122 Positioning blind hole 123... Second rotation axis 124... Support block 200 massage heads 300 Gear group 310 Main driving gear 320···Double gear 330 Drive gear 331...Irregular convexity 332...Deep groove 333...Shallow groove 334...Convex part 400···Oscillating rod assembly 410... Lifting rod 420 Pressurized elastic material 430···Oscillating rod body 431 Guide groove 432 Guide hole 440···Third insertion pin 450···Thrust elastic material 460...Sliding material 461···Sliding groove 462 Annular groove 463 Guide shaft 470···First insertion pin 480···Connecting arm 490···Second insertion pin 900···Drive unit

Claims

1. A head massager comprising a case (100), a transmission assembly partly extending from the case (100), and a massage head (200) provided outside the case (100), wherein the transmission assembly is used to drive the massage head (200) to oscillate, The transmission assembly comprises a gear train (300), a drive unit (900) for driving the gear train (300) to rotate, and a swing rod assembly (400); The swing rod assembly (400) comprises a swing rod body (430), a sliding member (460), and a connecting arm (480), one end of the swing rod body (430) is rotatably connected to one end of the connecting arm (480), the other end of the connecting arm (480) is rotatably connected to the sliding member (460), the sliding member (460) is slidable between a first position and a second position relative to the case (100), the swing rod body (430) passes through the case (100) and is hingedly connected to the case (100), and the other end of the swing rod body (430) is connected to the massage head (200), The gear group (300) comprises a drive gear (330) rotatably connected to the case (100) and having a deformed protrusion (331) protruding from one end surface thereof, the side wall of the deformed protrusion (331) abuts against an end of the sliding member (460) and is slidably fitted thereto, the side wall of the deformed protrusion (331) is alternately provided with several deep grooves (332) and several shallow grooves (333), when the sliding member (460) abuts against the groove bottom of the deep grooves (332), the sliding member (460) is located at the first position, when the sliding member (460) abuts against the groove bottom of the shallow grooves (333), the sliding member (460) is located at the third position, and the second position is located between the first position and the third position, The swing rod assembly (400) further includes a pressure elastic member (420), and the other end of the swing rod body (430) is provided with a guide groove (431) into which the lifting rod (410) is inserted, and both ends of the pressure elastic member (420) are pressed against the groove bottom of the guide groove (431) and one end of the lifting rod (410), respectively, and the massage head (200) is fixed to the other end of the lifting rod (410), and the pressure elastic member (420) is used to drive the lifting rod (410) away from the groove bottom of the guide groove (431). The swing rod assembly (400) further includes a third insert pin (440), and the lift rod (410) further includes a retract hole, the third insert pin (440) is connected to the swing rod body (430) through the retract hole, and the third insert pin (440) and the retract hole are used to limit the movement limit position of the lift rod (410) relative to the swing rod body (430). A head massager characterized by:

2. The cross section of the irregular protrusion (331) is X-shaped, the deep groove (332) and the shallow groove (333) are each provided in pairs, and a protrusion (334) is provided between the adjacent deep groove (332) and the adjacent shallow groove (333). When the top of the sliding member (460) and the top of the protrusion (334) are abutted against each other, the sliding member (460) is located at the second position, the other end of the sliding member (460) is an arc-shaped surface, the deep groove (332) is an arc-shaped groove, the shallow groove (333) is an arc-shaped groove, and the protrusion (334) is an arc-shaped protrusion.

2. The head massager according to claim 1.

3. The case (100) has case through-holes (111) whose number is the same as the number of the swing rod bodies (430), and in which guide rods (112) are provided on the inner wall. The center of each swing rod body (430) passes through one of the case through-holes (111) and is hingedly connected to one of the guide rods (112), so that the swing rod body (430) swings along the axis of the guide rod (112).

3. The head massager according to claim 2.

4. The case (100) comprises a case cover (110) and a case seat (120) removably connected to the case cover (110), the case through-hole (111) is opened in the case cover (110), the drive unit (900) is removably connected to the case seat (120), several rotating shafts are fixed to the case seat (120), the gear group (300) is rotatably connected to the case seat (120) via the rotating shafts, and the longitudinal direction of the rotating shafts is parallel to the output shaft of the drive unit (900).

4. The head massager according to claim 3.

5. One end of the swing rod body (430) is rotatably connected to one end of the connecting arm (480) via a first insert pin (470), and the other end of the connecting arm (480) is rotatably connected to the sliding member (460) via a second insert pin (490), the axis of the first insert pin (470) is parallel to the axis of the guide rod (112), and the axis of the second insert pin (490) is parallel to the axis of the guide rod (112).

4. The head massager according to claim 3.

6. The gear group (300) further comprises a main driving gear (310) and a two-stage gear (320), the two-stage gears (320) and the driving gears (330) being the same in number and in one-to-one correspondence, the output shaft of the drive unit (900) being coaxially fixed to the main driving gear (310), the drive unit (900) being used to move the main driving gear (310) to rotate along its axis, all driven teeth of all the two-stage gears (320) meshing with the main driving gear (310), and all driven teeth of each of the two-stage gears (320) meshing with one of the driving gears (330).

2. The head massager according to claim 1.

7. One end of the sliding member (460) is elastically connected to the case (100) via a thrust elastic member (450), and the thrust elastic member (450) is used to push the sliding member (460) away from the case (100), and the side wall of the profiled protrusion (331) and the other end of the sliding member (460) are slidably fitted together.

2. The head massager according to claim 1.

8. An annular groove (462) is recessed at the end of the sliding member (460), a guide shaft (463) is protruded at the end of the sliding member (460), the axis of the guide shaft (463) and the axis of the annular groove (462) overlap, and the thrust elastic member (450) is fitted onto the guide shaft (463) and one end is attached within the annular groove (462).

8. The head massager according to claim 7.

9. A guide rail (121) is fixed to the groove wall of the case (100), the length direction of which is perpendicular to the height direction of the irregularly shaped protrusion (331), and the guide rail (121) is slidably fitted into a slide groove (461) provided in the side wall of the slide member (460) so that the slide member (460) moves between the first position and the second position.

9. The head massager according to claim 1, wherein the head massager is a massager for a head.

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