A liquid applicator for the scalp

Abstract

The utility model relates to related technical field of massage equipment discloses a kind of liquid feeding device for scalp, comprising: tail detachable liquid storage box;Middle part's organism, its inside has accommodating cavity, accommodating cavity is also provided vibration device in it;Head's lower end cover, its installation in the lower end of organism, and its downward convex has massage head;The lower side of liquid storage box is detachably connected with the upper end of organism, to make liquid storage box inner cavity and accommodating cavity communicate, massage head is liquid outlet type massage head, liquid outlet type massage head inside has the tubular cavity of communicating accommodating cavity, the tubular cavity lower side opening place inlaying has the ball that can roll, vibration device is connected with lower end cover, for transmitting vibration to massage head, liquid storage, ball coating, physical massage and microseismic import function are integrated in one, the microseismic power generated by vibration device not only can simulate finger palm massage, promote scalp blood circulation, can also effectively reduce the surface tension of liquid, auxiliary ball uniform liquid outlet and promote the penetration and absorption of active ingredient.

Description

Technical Field

[0001] This utility model belongs to the technical field of massage equipment, and more specifically, it relates to a liquid applicator for the scalp. Background Technology

[0002] With people paying increasing attention to personal care and healthy living, scalp health care has become an important niche market. Various tools for applying hair growth serums, nutrient solutions, or essential oils, as well as a wide variety of scalp massagers, have appeared on the market.

[0003] Most common liquid application tools are simple roller applicators, which typically include a reservoir and a roller at the bottle opening. When using them, the liquid is moistened by tilting or pressing the bottle, and then the rolling motion of the roller applies the liquid to the skin. However, these tools have limited functionality and can only perform simple application. They cannot massage the scalp to promote blood circulation and liquid absorption, resulting in limited care effects.

[0004] On the other hand, traditional scalp massagers are mostly simple mechanical massage heads, such as silicone bump massage heads or electric vibration massagers. Although they can relax muscles and promote blood circulation through physical stimulation of the scalp, they do not have a liquid application function. Users need to apply the care liquid to the scalp with their hands or other tools before using the massager. The process is cumbersome and can easily lead to uneven application or waste of liquid.

[0005] Therefore, there is an urgent need in this field for a new type of scalp care device that integrates storage, application, and massage functions, and is well-sealed, safe, reliable, and effectively promotes absorption, in order to solve the many problems existing in the above-mentioned prior art. Utility Model Content

[0006] This invention provides a liquid applicator for the scalp to overcome the aforementioned defects in the prior art.

[0007] The purpose and efficacy of this utility model for applying liquid to the scalp are achieved by the following specific technical means: A scalp applicator includes: a removable reservoir at the tail end; a body in the middle, which has an internal cavity containing a vibration device; a lower end cap at the head end, which is installed at the lower end of the body and has a massage head protruding downwards; the lower side of the reservoir is detachably connected to the upper end of the body so that the inner cavity of the reservoir communicates with the cavity; the massage head is a dispensing massage head, which has a tube communicating with the cavity, and a rolling ball is embedded in the lower opening of the tube; the vibration device is connected to the lower end cap and is used to transmit vibration to the massage head.

[0008] This solution organically combines a detachable liquid reservoir, a body with a built-in vibration device, and the lower cap of an integrated liquid-dispensing massage head. This solves the problems of traditional scalp liquid application tools, such as limited functionality, cumbersome operation, and low liquid absorption efficiency. It integrates three major functions: liquid storage, massage stimulation, and absorption promotion. Users no longer need to use multiple tools separately, making operation extremely simple. The vibration function works in conjunction with the physical massage head. The vibration not only enhances the comfort of the massage but also stimulates scalp capillary circulation in the liquid-dispensing massage head area, while simultaneously disturbing the surface tension of the liquid, thus promoting the exudation and absorption of the liquid.

[0009] A further technical solution is that the lower end of the liquid storage box protrudes downward to form a screw-fit cylinder, and the middle part of the flat cover at the upper end of the machine body is recessed downward to form a screw-fit sleeve. The outer wall of the screw-fit cylinder has external threads, and the inner wall of the screw-fit sleeve has internal threads, and the two are threaded together.

[0010] In this solution, a threaded connection between a screw-on sleeve and a screw-on barrel is used, providing a detachable solution with reliable connection, good sealing, and low manufacturing cost. Its effect is to ensure a firm connection between the liquid storage box and the machine body, preventing it from loosening during use.

[0011] A further technical solution is that the connection between the liquid storage box and the body also has a sealing structure. The sealing structure includes a sealing ring. The lower opening of the screw sleeve extends radially inward to form an annular edge. The sealing ring is placed on the upper side of the annular edge. The lower end of the screw sleeve presses the sealing ring downward to form a seal.

[0012] In this solution, the fit between the sealing ring and the annular edge directly solves the problem of liquid leakage at the connection between the liquid storage box and the body. By directly squeezing the sealing ring through the lower end face of the screw-on cylinder, a dual sealing effect of radial and axial force is achieved, ensuring that the liquid will only flow out from the designed liquid outlet massage head, effectively preventing leakage at the connection and ensuring the cleanliness, hygiene and reliability of the product.

[0013] A further technical solution involves a waist ring fitted on the upper outer side of the body. The upper surface of the waist ring protrudes from the upper surface of the body, and the lower surface of the liquid storage box abuts against the upper surface of the waist ring to limit the downward rotation distance of the rotating cylinder.

[0014] In this design, the waist ring serves a dual purpose: its protruding upper surface acts as a rigid stop, precisely limiting the depth to which the liquid storage box is screwed in, preventing users from damaging the sealing ring or threads due to excessive tightening, thus improving the product's durability and service life; the waist ring is fitted onto the outside of the machine body, enhancing the structural strength of the upper part of the machine body, while also improving the overall aesthetics of the product.

[0015] A further technical solution is that the housing cavity of the body has a downward-facing opening, and a lower end cover is installed at the opening. The center of the lower end cover protrudes upward to form a power housing for accommodating the vibration device. The power housing has a downward-facing opening, and a protruding cover is sealed at the opening. The vibration head of the vibration device abuts against the protruding cover.

[0016] In this design, the vibration device is built into the power housing formed by the lower end cover, solving the problem of waterproofing the vibration device. The advantages are: hiding the vibration device inside the body facilitates miniaturization and improves portability; the power housing provides an independent sealed cavity for the vibration device, which is sealed by the protruding cover, effectively isolating liquid from the containment cavity and preventing liquid intrusion that could cause short circuits or component corrosion, thus effectively improving safety and reliability; the vibration head directly abuts against the protruding cover, and the vibration energy is directly transmitted to the entire lower end cover and all massage heads, resulting in low power loss and ensuring sufficient and effective massage intensity.

[0017] A further technical solution is that the vibration device includes a circuit board, a power supply unit, and a vibration unit. The power supply unit is mounted on the upper surface of the circuit board, the vibration unit is mounted on the lower surface of the circuit board, the circuit board is embedded in the power housing, and a damping elastic element is provided between the power supply unit and the upper wall of the power housing.

[0018] In this design, the power supply and vibration unit are placed on opposite sides of the circuit board, resulting in a balanced structure. This design makes full use of the longitudinal space of the power housing, and the shock-absorbing elastic element effectively absorbs the upward-transmitted vibration waves generated by the vibration unit. This prevents the power supply and its solder joints from loosening or being damaged due to long-term severe vibration, thus greatly extending the service life of the electronic components.

[0019] A further technical solution includes an end cap portion and at least two claw portions extending upward from the end cap portion. The upper outer wall of the claw portion protrudes radially to form a limiting protrusion portion, and the inner wall of the power housing is recessed inward to form a limiting groove corresponding to the position of the limiting protrusion portion. The limiting protrusion portion engages with the limiting groove to limit the longitudinal position of the protrusion cover.

[0020] In this solution, the engaging structure between the claw and the limiting slot provides a screwless, easy-to-install, and secure fixing method. Its effect is to achieve quick installation and precise positioning of the protruding cover. At the same time, this snap-fit ​​structure allows for a certain degree of elastic deformation, which facilitates assembly and maintenance and reduces production costs.

[0021] A further technical solution involves an annular sealing groove formed by the concave outer wall surface of the end cap, with a sealing ring disposed within the sealing groove. The sealing ring is compressed by the inner wall of the power housing to form a seal.

[0022] In this solution, the combination of the sealing ring and the sealing groove specifically solves the dynamic sealing problem at the lower opening of the power housing. Even when the vibration unit operates for a long time and produces a small displacement, the sealing ring, which is squeezed by the inner wall of the power housing, can still maintain a reliable static seal, ensuring that liquid will not seep in from the opening of the power housing and protecting the internal precision electronic components.

[0023] A further technical solution involves a connecting cylinder extending downward from the center of the end cap, into which the vibrating head of the vibration unit extends downward. A protruding blind cylinder is fixedly fitted outside the connecting cylinder, with a blind end on the lower side and extending upward from the blind end to form a contact head that can abut against the vibrating head.

[0024] In this design, the internal contact head directly contacts the vibrating head, efficiently guiding the vibration to the blind end area of ​​action, thus amplifying the intensity and effect of the massage.

[0025] A further technical solution is to recess the upper inner wall of the claw portion to form a locking groove for locking the circuit board, and the upper end of the claw portion can move radially elastically so that the circuit board can be locked into the locking groove from top to bottom.

[0026] In this solution, the elastic design of the slot groove and the claw solves the problem of quick and accurate installation and fixation of precision circuit boards in narrow spaces. Its effect is to realize tool-free snap-fit ​​installation of circuit boards, which is simple and efficient in assembly process, and is firmly fixed and can resist vibration and impact during use.

[0027] A further technical solution is that the upper side of the claw part has an inner conical guide surface and an outer conical guide surface. The inner conical guide surface is used to guide the circuit board to move from top to bottom, and the outer conical guide surface is used to guide the claw part to enter the limiting slot in the inner wall of the power housing.

[0028] In this design, the inner conical guide surface acts as a guide when installing the circuit board. Even with assembly errors, it can easily open the claw part and allow the circuit board to be smoothly inserted into place. When the protruding cover is installed into the power housing, the outer conical guide surface can guide the claw part to retract and align with the limiting slot, ensuring that the limiting protrusion can be accurately inserted. This achieves simplified installation, reduces assembly difficulty and the skill requirements for workers, and is conducive to large-scale production.

[0029] Compared with the prior art, the present invention has the following beneficial effects: This invention integrates the functions of liquid storage, roller coating, physical massage, and micro-vibration introduction. Users can complete the entire process from application to massage absorption without changing tools, solving the pain points of numerous tools and cumbersome operation in traditional methods. It improves user experience and efficiency. The micro-vibration force generated by the vibration device can not only simulate fingertip massage and promote scalp blood circulation, but also effectively reduce the surface tension of the liquid, assist the roller to dispense liquid evenly, and promote the penetration and absorption of active ingredients, thus achieving a synergistic effect of massage and liquid introduction.

[0030] In this invention, the lower end cover and the power housing are integrally formed, and the vibration device is encapsulated inside the body by the power housing. On the one hand, this enhances the sealing effect, isolating the liquid in the inner cavity of the body from the electronic components of the vibration device. On the other hand, hiding the vibration device inside the body is conducive to miniaturization and improves portability. Furthermore, the vibration head of the vibration device directly abuts against the protruding cover, and the vibration energy is directly transmitted to the entire lower end cover and all massage heads, resulting in low power loss and ensuring sufficient and effective massage intensity. Attached Figure Description

[0031] Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This is a schematic diagram of the structure of this utility model after the cover box has been removed; Figure 3 yes Figure 1 A three-dimensional longitudinal sectional view; Figure 4 yes Figure 2 A longitudinal sectional view; Figure 5 This is an exploded structural diagram of the present invention; Figure 6 This is a schematic diagram of the protruding cover in this utility model; Figure 7 This is a schematic diagram of the structure of the cover box in this utility model; Figure 8 This is a schematic diagram of the shock-absorbing elastic element in this utility model; Figure 9 This is a schematic diagram of the vibration device in this utility model; Figure 10 This is a schematic diagram of the structure of the body in this utility model; Figure 11 This is a schematic diagram of the liquid storage box in this utility model.

[0032] Explanation of reference numerals in the attached figures: 10. Liquid reservoir, 11. Body, 12. Receiving cavity, 13. Lower end cap, 14. Vibration device, 15. Liquid dispensing massage head, 16. Tube, 17. Ball bearing, 18. Stepped section, 19. Stepped hole, 20. Longitudinal extension, 21. Guide post, 22. Cover box, 23. Central groove, 24. Conical hole, 25. Screw-on sleeve, 26. Screw-on sleeve, 27. Limiting wedge one, 28. Limiting wedge two, 29. Sealing ring one, 30. Annular edge, 31. Waist ring, 32. Inward retraction Waist position, 33 slot, 34 hook, 35 power shell, 36 protruding cover, 37 circuit board, 38 power supply, 39 vibration unit, 40 damping elastic element, 41 spring tongue, 42 conductor strip, 43 end cover, 44 claw, 45 limiting protrusion, 46 limiting slot, 47 sealing groove, 48 sealing ring II, 49 connecting cylinder, 50 protruding blind cylinder, 51 contact head, 52 slot, 53 inner cone guide surface, 54 outer cone guide surface. Detailed Implementation

[0033] The embodiments of this utility model will be described in further detail below with reference to the accompanying drawings and examples. The following examples are for illustrative purposes only and should not be construed as limiting the scope of this utility model.

[0034] In the description of this utility model, unless otherwise stated, "a plurality of" means two or more; the terms "upper," "lower," "left," "right," "inner," "outer," "front end," "rear end," "head," "tail," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. In addition, the terms "first," "second," "third," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0035] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "connected" and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0036] This utility model provides an embodiment of a liquid applicator for the scalp, such as... Figures 1-11As shown, it includes: a detachable liquid storage box 10 at the tail end; a body 11 in the middle, which has a receiving cavity 12 inside, and a vibration device 14 is also installed in the receiving cavity 12; a lower end cover 13 at the head end, which is installed at the lower end of the body 11 and has a massage head protruding downwards; the lower side of the liquid storage box 10 is detachably connected to the upper end of the body 11 so that the inner cavity of the liquid storage box 10 communicates with the receiving cavity 12; the massage head is a liquid-dispensing massage head 15, which has a tube 16 inside that communicates with the receiving cavity 12; a rolling ball 17 is embedded in the lower opening of the tube 16; and the vibration device 14 is connected to the lower end cover 13 to transmit vibration to the massage head.

[0037] In this embodiment, the vibration device 14 is activated, and its own vibration head abuts against the lower end cover 13. The vibration is directly transmitted to the lower end cover 13 and the massage head. The massage head is used to massage and stimulate the capillary circulation of the scalp. The vibration also disturbs the surface tension of the liquid in the ball bearing 17 of the liquid-dispensing massage head, further promoting the penetration and absorption of the liquid. The removable liquid storage box 10 stores the liquid and can be quickly replaced when it is used up.

[0038] In specific implementation, the liquid-dispensing massage head 15 has a cylindrical structure with a stepped portion 18 extending radially from its upper end. The lower end cover 13 has a stepped hole 19, and a longitudinal extension portion 20 extends downward from the lower side of the stepped hole 19. The liquid-dispensing massage head 15 extends into the stepped hole 19 from top to bottom, and the stepped portion 18 is locked inside the stepped hole 19. The longitudinal extension portion 20 helps to restrict the outer wall surface of the liquid-dispensing massage head 15 to position the axial direction of the liquid-dispensing massage head 15 so that it is perpendicular to the lower end cover 13. In order to fix the liquid-dispensing massage head 15 in the stepped hole 19, an elastic sealing ring is also fitted on the upper end of the liquid-dispensing massage head 15. As the liquid-dispensing massage head 15 extends downward into the stepped hole 19, the elastic sealing ring is squeezed, and under the action of friction, the liquid-dispensing massage head 15 is fixed in the stepped hole 19, and a sealing effect is achieved.

[0039] In this embodiment, there are six liquid-dispensing massage heads 15, which are connected in sequence to form a flattened symmetrical hexagon. Furthermore, guide posts 21 that protrude downwards are fixedly provided at the four corners of the lower surface of the lower end cover 13. The guide posts 21 are tapered posts that are thicker at the top and thinner at the bottom.

[0040] A cover box 22 is also provided on the lower side of the body 11. The cover box 22 is detachably connected to the lower end of the body 11 and is used to protect the massage head and prevent dust. The cover box 22 has multiple cavities that are adapted to the shape of the liquid-dispensing massage head 15. A central groove 23 is provided in the center of the cover box 22. Conical holes 24 for accommodating guide posts 21 are also provided at the four corners of the cover box 22. The guide posts 21 cooperate with the conical holes 24 to position the cover box 22. The length of the liquid-dispensing massage head 15 is greater than the length of the guide post 21. The end of the guide post 21 is rounded to avoid scratching the scalp and can also play an auxiliary massage role.

[0041] Preferably, the lower end of the liquid storage box 10 protrudes downward to form a screw-fit cylinder 25, and the middle part of the flat cover at the upper end of the body 11 is recessed downward to form a screw-fit sleeve 26. The outer wall of the screw-fit cylinder 25 has external threads, and the inner wall of the screw-fit sleeve 26 has internal threads. The two are engaged by the threads.

[0042] In specific implementation, a limiting wedge 27 is formed by radially protruding inward at the top of the inner wall of the screw-fit sleeve 26, and a limiting wedge 28 is formed by radially protruding outward at the top of the outer wall of the screw-fit cylinder 25. As the screw-fit cylinder 25 is screwed into the screw-fit sleeve 26, when the threaded connection is at its tightest point, the limiting wedge 28 abuts against the limiting wedge 27 to restrict further rotation of the screw-fit cylinder 25 within the screw-fit sleeve 26, ensuring a firm connection between the liquid storage box 10 and the machine body 11, preventing it from loosening during use.

[0043] Preferably, the connection between the liquid storage box 10 and the body 11 also has a sealing structure, which includes a sealing ring 29. The lower opening of the screw sleeve 26 extends radially inward to form an annular edge 30. The sealing ring 29 is placed on the upper side of the annular edge 30. The lower end of the screw sleeve 25 presses the sealing ring 29 downward to form a seal.

[0044] Preferably, a waist ring 31 is also fitted on the upper outer side of the body 11. The upper surface of the waist ring 31 protrudes from the upper surface of the body 11, and the lower surface of the liquid storage box 10 abuts against the upper surface of the waist ring 31 to limit the downward rotation distance of the rotating cylinder 25.

[0045] In practice, the upper edge of the body 11 radially narrows inward to form an inwardly recessed waist 32, which is narrower at the top and wider at the bottom. The side surface of the inwardly recessed waist 32 is concave to form a locking groove 33. Multiple locking grooves 33 are distributed circumferentially. The inner wall of the waist ring 31 has hooks 34 that correspond one-to-one with the locking grooves 33. The waist ring 31 is fitted onto the inwardly recessed waist 32 from top to bottom so that the hooks 34 are engaged in the locking grooves 33, achieving a locking effect. The protruding upper surface of the waist ring 31 acts as a hard stop, limiting the depth to which the liquid storage box 10 is screwed in, preventing the user from damaging the sealing ring 29 or the threads due to excessive tightening. The waist ring 31 is fitted onto the outside of the body 11, enhancing the structural strength of the upper part of the body 11.

[0046] Preferably, the housing 12 of the body 11 has a downward opening, and a lower end cover 13 is installed at the opening. The center of the lower end cover 13 protrudes upward to form a power housing 35 for accommodating the vibration device 14. The power housing 35 has a downward opening, and a protruding cover 36 is sealed at the opening. The vibration head of the vibration device 14 abuts against the protruding cover 36.

[0047] In this embodiment, the lower end cover 13 and the power housing 35 are integrally formed to form a strong sealing effect. The power housing 35, as a compartment for accommodating electronic components, effectively prevents liquid in the housing cavity 12 of the body 11 from entering the power housing 35.

[0048] Preferably, the vibration device 14 includes a circuit board 37, a power supply 38, and a vibration unit 39. The power supply 38 is mounted on the upper surface of the circuit board 37, and the vibration unit 39 is mounted on the lower surface of the circuit board 37. The circuit board 37 is embedded in the power housing 35, and a damping elastic element 40 is provided between the power supply 38 and the upper wall of the power housing 35.

[0049] In this embodiment, the power supply unit 38 is a cylindrical lithium battery, and the shock-absorbing elastic element 40 is a conductor electrically connected to the power supply unit 38 for charging the power supply unit 38. At the same time, it also has a spring tongue 41 that can swing elastically to achieve a shock-absorbing effect.

[0050] Specifically, the damping elastic element 40 is a circular sheet with a conductor strip 42 extending downwards from its side to connect to the power supply unit 38. A through groove is formed in the center of the circular sheet, and a spring tongue 41 is provided on the side wall of the through groove. The spring tongue 41 can elastically swing within the through groove. By default, the spring tongue 41 swings downwards so that its end protrudes downwards from the lower surface of the circular sheet and abuts against the power supply unit 38. The power supply unit 38 and the vibration unit 39 are respectively placed on both sides of the circuit board 37, with a balanced structure that makes full use of the longitudinal space of the power housing 35. The damping elastic element 40 absorbs the vibration waves transmitted upwards by the vibration unit 39.

[0051] Preferably, the protruding cover 36 includes an end cover portion 43 and at least two claw portions 44 extending upward from the end cover portion 43. The upper outer wall of the claw portion 44 protrudes radially to form a limiting protrusion portion 45. The inner wall of the power housing 35 is recessed to form a limiting groove 46 corresponding to the position of the limiting protrusion portion 45. The limiting protrusion portion 45 engages with the limiting groove 46 to limit the longitudinal position of the protruding cover 36.

[0052] Preferably, the outer wall surface of the end cap portion 43 is recessed to form an annular sealing groove 47, and a sealing ring 48 is provided in the sealing groove 47. The sealing ring is squeezed by the inner wall of the power housing 35 to form a seal.

[0053] In this embodiment, the sealing ring 48 and the sealing groove 47 cooperate to form a seal under the pressure of the inner wall of the power housing 35. Even when the vibration unit 39 operates for a long time and produces a small displacement, the sealing ring 48, which is squeezed by the inner wall of the power housing 35, can still maintain a reliable static seal, ensuring that liquid will not seep in from the lower opening of the power housing 35.

[0054] Preferably, a connecting cylinder 49 extends downward from the center of the end cap portion 43, and the vibrating head of the vibration unit 39 extends downward into the connecting cylinder 49. A protruding blind cylinder 50 is fixedly sleeved on the outside of the connecting cylinder 49. The lower side of the protruding blind cylinder 50 is a blind end, and the blind end extends upward to form a contact head 51 that can abut against the vibrating head.

[0055] In this embodiment, the internal contact head 51 directly abuts against the vibrating head, efficiently guiding the vibration to the vibrating head and the lower end cover 13. In other embodiments of this application, the protruding blind cylinder 50 is detachably connected to the connecting cylinder 49, used to open or close the opening of the power housing 35, facilitating drainage if liquid enters. Furthermore, the protruding blind cylinder 50, as a carrier directly receiving the vibration, can be replaced with other types of massage heads as needed to serve as the primary vibration generator for scalp massage.

[0056] Preferably, the upper inner wall of the claw portion 44 is recessed to form a locking groove 52 for locking the circuit board 37, and the upper end of the claw portion 44 can move radially elastically so that the circuit board 37 can be locked into the locking groove 52 from top to bottom.

[0057] Preferably, the upper side of the claw portion 44 has an inner conical guide surface 53 and an outer conical guide surface 54. The inner conical guide surface 53 is used to guide the circuit board 37 to move from top to bottom, and the outer conical guide surface 54 is used to guide the claw portion 44 to enter the limiting groove 46 of the inner wall of the power housing 35 upward.

[0058] In this embodiment, the inner conical guide surface plays a guiding role when installing the circuit board 37, and the outer conical guide surface can guide the claw part 44 to retract and align with the limiting slot 46 when the protruding cover 36 is installed into the power housing 35, so as to ensure that the limiting protrusion 45 can be accurately engaged.

[0059] The embodiments of this utility model are given for illustrative and descriptive purposes only, and are not intended to be exhaustive or to limit the utility model to the forms disclosed. Many modifications and variations will be apparent to those skilled in the art. The embodiments were chosen and described in order to better illustrate the principles and practical applications of this utility model, and to enable those skilled in the art to understand this utility model and design various embodiments with various modifications suitable for a particular purpose.

Claims

1. A liquid applicator for the scalp, characterized in that, include: The removable liquid storage box at the rear; The central body has an internal cavity containing a vibration device. The lower end cover of the head is installed at the lower end of the body and has a massage head protruding downwards. The lower side of the liquid storage box is detachably connected to the upper end of the body so that the inner cavity of the liquid storage box communicates with the receiving cavity. The massage head is a liquid-dispensing massage head with a tube inside that communicates with the receiving cavity. A rolling ball is embedded in the lower opening of the tube. The vibration device is connected to the lower end cover and is used to transmit vibration to the massage head.

2. A scalp applicator according to claim 1, characterized in that, The lower end of the liquid storage box protrudes downward to form a screw-fit cylinder, and the middle part of the flat cover at the upper end of the machine body is recessed downward to form a screw-fit sleeve. The outer wall of the screw-fit cylinder has external threads, and the inner wall of the screw-fit sleeve has internal threads, and the two are threaded together.

3. The scalp applicator according to claim 2, characterized in that, The connection between the liquid storage box and the body also has a sealing structure, which includes a sealing ring. The lower opening of the screw sleeve extends radially inward to form an annular edge. The sealing ring is placed on the upper side of the annular edge. The lower end of the screw sleeve presses the sealing ring downward to form a seal.

4. The scalp applicator according to claim 2 or 3, characterized in that, A waist ring is also fitted on the outer side of the upper end of the machine body. The upper surface of the waist ring protrudes from the upper surface of the machine body, and the lower surface of the liquid storage box abuts against the upper surface of the waist ring to limit the downward rotation distance of the rotary cylinder.

5. The scalp applicator according to claim 1, characterized in that, The housing cavity of the body has a downward-facing opening, and the lower end cover is installed at the opening. The center of the lower end cover protrudes upward to form a power housing for accommodating the vibration device. The power housing has a downward-facing opening, and a protruding cover is sealed at the opening. The vibration head of the vibration device abuts against the protruding cover.

6. The scalp applicator according to claim 5, characterized in that, The vibration device includes a circuit board, a power supply unit, and a vibration unit. The power supply unit is mounted on the upper surface of the circuit board, and the vibration unit is mounted on the lower surface of the circuit board. The circuit board is embedded in the power housing, and a shock-absorbing elastic element is provided between the power supply unit and the upper wall of the power housing.

7. The scalp applicator according to claim 6, characterized in that, The protruding cover includes an end cap portion and at least two claw portions extending upward from the end cap portion. The upper outer wall of the claw portion protrudes radially to form a limiting protrusion portion. The inner wall of the power housing is recessed to form a limiting groove corresponding to the position of the limiting protrusion portion. The limiting protrusion portion engages with the limiting groove to limit the longitudinal position of the protruding cover. And / or, the outer wall surface of the end cap is recessed to form an annular sealing groove, and a sealing ring is provided in the sealing groove. The sealing ring is squeezed by the inner wall of the power housing to form a seal.

8. The scalp applicator according to claim 7, characterized in that, The end cap extends downward to form a connecting cylinder, the vibration head of the vibration unit extends downward into the connecting cylinder, and a protruding blind cylinder is fixedly sleeved on the outside of the connecting cylinder. The lower side of the protruding blind cylinder is a blind end, and the blind end extends upward to form a contact head that can abut against the vibration head.

9. The scalp applicator according to claim 7, characterized in that, The upper inner wall of the claw portion is recessed to form a locking groove for locking the circuit board, and the upper end of the claw portion can move radially elastically so that the circuit board can be locked into the locking groove from top to bottom.

10. The scalp applicator according to claim 9, characterized in that, The upper side of the claw portion has an inner conical guide surface and an outer conical guide surface. The inner conical guide surface is used to guide the circuit board to move from top to bottom, and the outer conical guide surface is used to guide the claw portion to enter the limiting slot in the inner wall of the power housing.

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