Scalp drainage comb and exhaust needle thereof

Abstract

The exhaust needle comprises a needle tube and at least one spherical object, a containing cavity is formed in the needle tube in the longitudinal axis direction, a first exhaust hole is formed in the top end of the needle tube, a second exhaust hole is formed in the bottom end of the needle tube, and the first exhaust hole and the second exhaust hole are both communicated with the containing cavity; the spherical object is movably contained in the containing cavity, and the inner end face of the first exhaust hole is matched with the surface of the spherical object so that the spherical object can block the inner end of the first exhaust hole to prevent liquid leakage. When liquid medicine in the liquid storage bin flows into the containing cavity through the second exhaust hole, the spherical object floats and blocks the inner end face of the first exhaust hole, so that the liquid medicine is prevented from leaking outwards, the liquid leakage condition is avoided, the structure is simple, and safety and reliability are achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of hair care appliances, in particular to a scalp liquid-guiding comb and an exhaust needle thereof. Background Art

[0002] At present, the scalp liquid guide comb is also called scalp medicine applicator, scalp care comb, etc. It is used to guide and apply hair growth medicine or hair care medicine to the scalp, so as to promote the scalp to absorb nutrient solution through effective massage care of the scalp, thereby providing better care for the scalp and hair.

[0003] In the prior art, the liquid-guiding teeth of a scalp liquid-guiding comb generally use a ball method to guide liquid and apply medicine. In order to allow the liquid in the liquid storage tank to be smoothly guided out by the ball-guided liquid-guiding comb teeth and applied to the scalp, the existing scalp liquid-guiding comb usually has an exhaust hole on the top wall of the liquid storage tank, so that outside air can enter the liquid storage tank through the exhaust hole to achieve air pressure balance, thereby preventing negative pressure from being generated in the liquid storage tank and hindering the liquid discharge from the ball. However, although the exhaust hole is conducive to the liquid discharge from the ball-guided liquid-guiding comb teeth, the hair growth medicine in the liquid storage tank will flow to the outside through the exhaust hole and leak, resulting in leakage and waste of hair growth medicine. The leaked hair growth medicine even has the risk of damaging the battery and electronic components in the electric liquid-guiding comb. Utility Model Content

[0004] The utility model aims to provide a scalp liquid-guiding comb and an exhaust needle thereof, aiming to solve the technical problem of liquid leakage in the exhaust structure adopted by the scalp liquid-guiding comb in the prior art.

[0005] In order to achieve the above-mentioned purpose, in a first aspect, the technical solution of the utility model provides an exhaust needle of a scalp liquid guide comb, comprising:

[0006] A needle tube, wherein a receiving cavity is provided inside the needle tube along the longitudinal axis direction, a first exhaust hole is provided at the top end of the needle tube, and a second exhaust hole is provided at the bottom end of the needle tube, and both the first exhaust hole and the second exhaust hole are connected to the receiving cavity;

[0007] At least one spherical object is movably accommodated in the accommodating cavity, so that the spherical object blocks the inner end of the first exhaust hole to prevent leakage.

[0008] According to the first aspect, in a possible implementation, the first exhaust hole is extended along the longitudinal axis direction of the needle tube, and the inner end surface of the first exhaust hole is an arc surface or a conical surface expanding toward the spherical object.

[0009] According to the first aspect, in a possible implementation, the needle tube includes:

[0010] A tube body, wherein a flange is provided at the top end of the tube body extending in the circumferential direction;

[0011] A ring cover is provided with a ring groove on its outer circumference, and the first exhaust hole is provided on the ring cover so that the ring cover is installed on the top end of the tube body by embedding the flange in the ring groove.

[0012] According to the first aspect, in a possible implementation, the upper inner wall of the needle tube has a tapered tube portion that converges inwardly, and the diameter of the tapered tube portion gradually decreases from the bottom end to the top end of the needle tube.

[0013] According to the first aspect, in a possible implementation, the lower inner wall of the needle tube is a cylindrical tube portion, and the diameter of the cylindrical tube portion is substantially consistent from the bottom end to the top end of the needle tube.

[0014] According to the first aspect, in a possible implementation manner, a limiting convex ring is circumferentially provided on the outside of the needle tube.

[0015] According to the first aspect, in a possible implementation manner, a boss is provided at the bottom end of the needle tube protruding inwardly, and a plurality of the second exhaust holes are evenly arranged on the boss.

[0016] According to the first aspect, in a possible implementation manner, the boss is a conical structure, and the bottom of the boss has an exhaust cavity extending from the bottom end to the top end thereof, and the exhaust cavity is connected to the second exhaust hole.

[0017] According to the first aspect, in a possible implementation manner, at least two spherical objects are disposed in the accommodating cavity, and the at least two spherical objects are stacked up and down.

[0018] In a second aspect, the technical solution of the utility model provides a scalp liquid-conducting comb, comprising:

[0019] An exhaust needle as described in any of the above technical solutions;

[0020] The shell has a liquid storage tank inside, at least one liquid guide comb needle is provided at one end of the shell, the liquid guide comb needle is connected to the liquid storage tank, the bottom end of the exhaust needle is installed on the outer wall of the liquid storage tank, and the second exhaust hole is connected to the liquid storage tank.

[0021] It can be seen from the above technical scheme that the scalp liquid-guiding comb of the utility model can allow air circulation between the liquid storage tank and the outside through the exhaust needle to achieve air pressure balance, thereby preventing negative pressure from being generated in the liquid storage tank and hindering the discharge of liquid, which is beneficial for the liquid-guiding comb needle to guide the liquid out and apply it to the scalp, and by placing a spherical object in the accommodating cavity of the needle tube, when the liquid in the liquid storage tank flows into the accommodating cavity through the second exhaust hole, the spherical object floats up and blocks the inner end surface of the first exhaust hole, thereby preventing the liquid from leaking out and avoiding leakage. The structure is simple, safe and reliable.

[0022] In order to make the technical concept and other purposes, advantages, features and functions of the present invention more clearly understood, preferred embodiments will be specifically cited in the following specific implementation manner and described in detail with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0024] Figure 1 is a schematic diagram of the structure of a scalp liquid-guiding comb provided by an embodiment of the present application;

[0025] Figure 2 This is a front view of a scalp liquid-guiding comb provided by an embodiment of the present application;

[0026] Figure 3 The embodiment of this application provides Figure 2 Sectional view of the middle section AA;

[0027] Figure 4 is a three-dimensional diagram of an exhaust needle of a scalp liquid-guiding comb provided in an embodiment of the present application;

[0028] Figure 5 is a stereoscopic diagram of an exhaust needle of a scalp liquid-guiding comb provided by an embodiment of the present application from another perspective;

[0029] Figure 6 This is a front view of an exhaust needle of a scalp liquid-guiding comb provided by an embodiment of the present application;

[0030] Figure 7 The embodiment of this application provides Figure 6 Sectional view of the middle section BB;

[0031] Figure 8 This is a structural exploded view of an exhaust needle of a scalp liquid-guiding comb provided in an embodiment of the present application;

[0032] Fig. 9 This is a structural exploded view from another perspective of an exhaust needle of a scalp liquid-guiding comb provided in an embodiment of the present application.

[0033] The above drawings include the following reference numerals:

[0034] 100, liquid guide comb; 110, housing; 120, liquid storage tank; 130, liquid guide comb needle;

[0035] 200, exhaust needle; 210, needle tube; 211, accommodating chamber; 212, conical tube portion; 213, cylindrical tube portion; 214, limiting convex ring; 215, flange; 220, ring cover; 221, first exhaust hole; 222, annular groove; 223, inner end surface; 230, spherical object; 240, end cover; 241, second exhaust hole; 242, boss; 243, exhaust chamber. DETAILED DESCRIPTION

[0036] The embodiment of the present application provides a scalp liquid guide comb 100 and an exhaust needle 200 thereof to solve the technical problem of liquid leakage in the exhaust structure adopted by the scalp liquid guide comb 100 in the prior art. A spherical object 230 is placed in the accommodating cavity 211 of the needle tube 210 so that the surface of the spherical object 230 fits with the inner end surface 223 of the first exhaust hole 221 to prevent the hair growth liquid from leaking out, thereby effectively improving the safety and reliability of the liquid guide comb 100.

[0037] In order to enable those skilled in the art to better understand the technical solution of the present application, the technical solution in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without making creative work are within the scope of protection of this application.

[0038] Please also read Figures 1 to 9 The present embodiment provides an exhaust needle 200 of a scalp liquid-guiding comb 100, comprising a needle tube 210 and at least one ball 230. The interior of the needle tube 210 is provided with an accommodating cavity 211 along the longitudinal axis direction. The top end of the needle tube 210 is provided with a first exhaust hole 221, and the bottom end of the needle tube 210 is provided with a second exhaust hole 241. Both the first exhaust hole 221 and the second exhaust hole 241 are connected to the accommodating cavity 211. The ball 230 can be movably accommodated in the accommodating cavity 211, and the inner end surface 223 of the first exhaust hole 221 is matched with the surface of the ball 230, so that the ball 230 blocks the inner end of the first exhaust hole 221 to prevent leakage, wherein the ball 230 is a solid ball or a hollow ball structure, and the material of the ball 230 includes but is not limited to metal, plastic, composite material, wood material, etc.

[0039] It can be seen that the scalp liquid-guiding comb 100 of the present embodiment can allow the liquid storage tank 120 to circulate air with the outside through the exhaust needle 200 to achieve air pressure balance, thereby preventing negative pressure from being generated in the liquid storage tank 120 and hindering the discharge of liquid, which is beneficial for the liquid-guiding comb needle 130 to guide the liquid medicine out and apply it to the scalp, and by placing a ball 230 in the accommodating cavity 211 of the needle tube 210, when the liquid medicine in the liquid storage tank 120 flows into the accommodating cavity 211 through the second exhaust hole 241, the ball 230 floats up and blocks the inner end surface 223 of the first exhaust hole 221, thereby preventing the liquid medicine from leaking out and avoiding leakage. The structure is simple, safe and reliable.

[0040] In the present embodiment, the first exhaust hole 221 is extended along the longitudinal axis direction of the needle tube 210, and the inner end surface 223 of the first exhaust hole 221 is an arc surface or a conical surface expanding toward the spherical object 230. Such a configuration makes the surface of the spherical object 230 fit more closely with the inner end surface 223 of the first exhaust hole 221, so as to block the inner end of the first exhaust hole 221, further preventing the hair growth liquid from leaking out through the first exhaust hole 221, and significantly improving the use effect of the anti-leakage liquid.

[0041] Specifically, the needle tube 210 includes a tube body and a ring cover 220. A flange 215 is circumferentially extended at the top of the tube body. An annular groove 222 is provided on the outer periphery of the ring cover 220. The first exhaust hole 221 is provided on the ring cover 220, so that the flange 215 is embedded in the annular groove 222 to install the ring cover 220 on the top of the tube body. The assembly structure is simple, easy to process and produce, and the manufacturing cost is low.

[0042] Among them, the ring cover 220 can be made of silicone or rubber material. Of course, in other embodiments, the ring cover 220 can also be made of hard materials such as plastic or metal. The tube body is made of plastic or metal material. During the injection molding process, the flange 215 and the ring groove 222 are matched so that the top end of the tube body and the ring cover 220 are injection-molded and assembled together.

[0043] Furthermore, the upper inner wall of the needle tube 210 has an inwardly converging conical tube portion 212, and the diameter of the conical tube portion 212 gradually decreases from the bottom end to the top end of the needle tube 210. The minimum diameter of the conical tube portion 212 is slightly larger than the diameter of the spherical object 230. In this way, the conical tube portion 212 can guide and limit the floating movement of the spherical object 230, so that the spherical object 230 can accurately correspond to the inner end surface 223 of the first exhaust hole 221 when floating, thereby achieving stable fit.

[0044] Specifically, the tube body of the needle tube 210 includes a cylindrical tube portion 213 and a conical tube portion 212. The cylindrical tube portion 213 is located at the lower part of the tube body. The diameter of the cylindrical tube portion 213 is substantially consistent from the bottom end to the top end of the needle tube 210. The conical tube portion 212 is located at the upper part of the tube body. The ring cover 220 is installed at the top end of the conical tube portion 212. The inner end of the first exhaust hole 221 is an end of the first exhaust hole 221 located in the conical tube portion 212. When no liquid medicine flows into the accommodating cavity 211 of the needle tube 210, The ball 230 is mainly located on the bottom end of the cylindrical tube 213. When the medicine flows into the accommodating cavity 211 of the needle tube 210, the ball 230 floats under the action of the medicine and fits tightly with the inner end surface 223 of the first exhaust hole 221 in the conical tube 212 until the medicine in the accommodating cavity 211 flows back into the liquid storage tank 120 of the liquid guide comb 100 through the second exhaust hole 241, so that the ball 230 falls to the bottom end of the cylindrical tube 213 again by its own gravity.

[0045] In this embodiment, a limiting convex ring 214 is circumferentially provided on the outside of the needle tube 210, and a mounting hole is penetrated through the outer wall of the liquid storage tank 120 so that the bottom end of the needle tube 210 can be inserted into the mounting hole for assembly. The limiting convex ring 214 abuts against the end wall of the mounting hole to position the needle tube 210. The structure is simple and easy to assemble, which effectively improves the stability and reliability of the mounting structure.

[0046] Specifically, a boss 242 is provided at the bottom end of the needle tube 210 protruding inward, and a plurality of second exhaust holes 241 are evenly provided on the boss 242. The side walls and the top wall of the boss 242 are provided with second exhaust holes 241. In this way, the provision of a plurality of second exhaust holes 241 is more conducive to air circulation between the liquid storage tank 120 and the outside, and when the ball 230 is located on the top of the boss 242, it can effectively prevent the ball 230 from blocking all the second exhaust holes 241, thereby preventing the liquid storage tank 120 of the liquid guide comb 100 from being unable to exhaust and generating negative pressure, thereby affecting the liquid discharge of the liquid guide comb needle 130.

[0047] Furthermore, the boss 242 is a conical structure, and the bottom of the boss 242 has an exhaust cavity 243 extending from its bottom end to the top end, the exhaust cavity 243 is connected to the second exhaust hole 241, and the side wall and the top wall of the boss 242 are both provided with the second exhaust hole 241. In this way, the exhaust cavity 243 of the boss 242 promotes air circulation between the liquid storage tank 120 and the outside, which is beneficial to the exhaust of the liquid storage tank 120, further improving the liquid guide efficiency and liquid guide effect of the liquid guide comb needle 130, making it convenient for users to use and bringing users a better user experience.

[0048] Among them, the tube body of the needle tube 210 is a hollow tubular structure with both ends connected. A ring cover 220 is installed at the top of the tube body, and an end cover 240 is installed at the bottom of the tube body. The outer periphery of the end cover 240 is provided with an annular wall extending along the longitudinal axis direction of the needle tube 210, so that the end cover 240 is installed at the bottom end of the tube body by inserting the annular wall into the bottom end of the tube body, and the boss 242 is provided on the end cover 240. In this way, the needle tube 210 is divided into three parts, namely the tube body, the ring cover 220 and the end cover 240 for assembly, which reduces the difficulty of manufacturing and processing, facilitates production and processing, and has a simple structure and convenient assembly.

[0049] In this embodiment, at least two spheres 230 are arranged in the accommodating cavity 211, and at least two spheres 230 are stacked up and down. The axial length of the accommodating cavity 211 of the tube body is greater than the sum of the diameters of the multiple spheres 230, and the tube diameter of the accommodating cavity 211 is greater than the diameter of the sphere 230 and less than 1.5 times the diameter of the sphere 230. In this way, by adopting the up and down stacking arrangement of multiple spheres 230, it is found in the actual product test that the anti-leakage effect and the exhaust effect of the liquid storage tank 120 are better, the use effect is more obvious, and the practicality and stability of the product are further improved.

[0050] In addition, the present embodiment provides a scalp liquid-guiding comb 100, comprising an exhaust needle 200 and a shell 110 as described in any of the above embodiments, wherein the shell 110 has a liquid storage tank 120 for storing hair-growth liquid inside, and at least one liquid-guiding comb needle 130 is disposed at one end of the shell 110, and the liquid-guiding comb needle 130 is connected to the liquid storage tank 120, and the bottom end of the exhaust needle 200 is mounted on the outer wall of the liquid storage tank 120, and the second exhaust hole 241 is connected to the liquid storage tank 120, so that The liquid storage tank 120 can be vented in sequence through the exhaust cavity 243, the second exhaust hole 241, the accommodating cavity 211 and the first exhaust hole 221 of the exhaust needle 200 to avoid negative pressure in the liquid storage tank 120 affecting the liquid conduction of the liquid guide comb needle 130, and the surface of the spherical object 230 located at the top is tightly fitted with the inner end surface 223 of the first exhaust hole 221 to block the first exhaust hole 221 and prevent the liquid from leaking through the first exhaust hole 221 and causing adverse effects.

[0051] It should be noted that the liquid-guiding combing needle 130 adopts the existing ball-shaped liquid-guiding method, and the present embodiment does not make any innovative and improved design to the liquid-guiding combing needle 130. Therefore, the present embodiment will not elaborate on the specific structure and liquid-guiding principle of the liquid-guiding combing needle 130.

[0052] From the above description, it can be seen that the above embodiments of the utility model achieve the following technical effects:

[0053] The scalp liquid-guiding comb 100 of the utility model can allow the liquid storage tank 120 to circulate air with the outside through the exhaust needle 200 to achieve air pressure balance, thereby preventing negative pressure from being generated in the liquid storage tank 120 and hindering the discharge of liquid, which is conducive to the liquid-guiding comb needle 130 to guide the liquid medicine out and apply it to the scalp, and by placing a ball 230 in the accommodating cavity 211 of the needle tube 210, when the liquid medicine in the liquid storage tank 120 flows into the accommodating cavity 211 through the second exhaust hole 241, the ball 230 floats up and blocks the inner end surface 223 of the first exhaust hole 221 to prevent the liquid medicine from leaking out, thereby avoiding leakage, and the structure is simple, safe and reliable.

[0054] It should be noted that the terms used herein are only for describing specific embodiments and are not intended to limit the exemplary embodiments according to the present application. As used herein, unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. In addition, it should be understood that when the terms "comprise" and / or "include" are used in this specification, it indicates the presence of features, steps, operations, devices, components and / or combinations thereof.

[0055] Unless otherwise specifically stated, the relative arrangement, numerical expressions and numerical values ​​of the parts and steps set forth in these embodiments do not limit the scope of the present application. At the same time, it should be understood that, for ease of description, the sizes of the various parts shown in the accompanying drawings are not drawn according to the actual proportional relationship. The technology, method and equipment known to those of ordinary skill in the relevant field may not be discussed in detail, but in appropriate cases, the technology, method and equipment should be considered as a part of the authorization specification. In all examples shown and discussed here, any specific value should be interpreted as being merely exemplary, rather than as a limitation. Therefore, other examples of exemplary embodiments may have different values. It should be noted that similar reference numerals and letters represent similar items in the following drawings, so that once a certain item is defined in an accompanying drawing, it does not need to be further discussed in subsequent drawings.

[0056] In the description of the present application, the terms "center", "up", "down", "front", "back", "left", "right", "lateral", "longitudinal", "vertical", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present application.

[0057] It should also be noted that, unless otherwise clearly specified and limited, the terms such as "install", "connect", "connect", "fix", "set" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral one; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in this utility model can be understood according to specific circumstances.

[0058] In addition, it should be noted that in the description of the present invention, the use of terms such as "first" and "second" to limit components is only for the convenience of distinguishing the corresponding components. Unless otherwise stated, the above terms have no special meaning and therefore cannot be understood as limiting the scope of protection of this application. In the description of the present invention, unless otherwise stated, the meaning of "multiple" refers to two or more.

[0059] The above is a preferred embodiment of the present invention. It should be pointed out that a person skilled in the art can make several improvements and modifications without departing from the principle of the present invention. These improvements and modifications are also considered to be within the protection scope of the present invention.

Claims

1. An exhaust needle for a scalp liquid-guiding comb, characterized in that: include: A needle tube, wherein a receiving cavity is provided inside the needle tube along the longitudinal axis direction, a first exhaust hole is provided at the top end of the needle tube, and a second exhaust hole is provided at the bottom end of the needle tube, and both the first exhaust hole and the second exhaust hole are connected to the receiving cavity; At least one spherical object is movably accommodated in the accommodating cavity, so that the spherical object blocks the inner end of the first exhaust hole to prevent leakage.

2. The exhaust needle of the scalp liquid-guiding comb according to claim 1, characterized in that: The first exhaust hole is extended along the longitudinal axis direction of the needle tube, and the inner end surface of the first exhaust hole is an arc surface or a conical surface expanding toward the spherical object.

3. The exhaust needle of the scalp liquid-guiding comb according to claim 2, characterized in that: The needle tube comprises: A tube body, wherein a flange is provided at the top end of the tube body extending in the circumferential direction; A ring cover is provided with a ring groove on its outer circumference, and the first exhaust hole is provided on the ring cover so that the ring cover is installed on the top end of the tube body by embedding the flange in the ring groove.

4. The exhaust needle of the scalp liquid-guiding comb according to any one of claims 1 to 3, characterized in that: The upper inner wall of the needle tube has a tapered tube portion that converges inwards, and the tube diameter of the tapered tube portion gradually decreases from the bottom end to the top end of the needle tube.

5. The exhaust needle of the scalp liquid-guiding comb according to claim 4, characterized in that: The lower inner wall of the needle tube is a cylindrical tube portion, and the diameter of the cylindrical tube portion is substantially consistent from the bottom end to the top end of the needle tube.

6. The exhaust needle of the scalp liquid-guiding comb according to any one of claims 1 to 3, characterized in that: A limiting convex ring is circumferentially arranged on the outside of the needle tube.

7. The exhaust needle of the scalp liquid-guiding comb according to any one of claims 1 to 3, characterized in that: A boss is provided at the bottom end of the needle tube, which protrudes inward and is provided with a plurality of the second exhaust holes evenly arranged on the boss.

8. The exhaust needle of the scalp liquid-guiding comb according to claim 7, characterized in that: The boss is a cone-shaped structure, and the bottom of the boss has an exhaust cavity extending from the bottom end to the top end, and the exhaust cavity is connected with the second exhaust hole.

9. The exhaust needle of the scalp liquid-guiding comb according to any one of claims 1 to 3, characterized in that: At least two spherical objects are arranged in the accommodating cavity, and at least two spherical objects are stacked up and down.

10. A scalp liquid-conducting comb, characterized in that: include: The exhaust needle according to any one of claims 1 to 9; The shell has a liquid storage tank inside, at least one liquid guide comb needle is provided at one end of the shell, the liquid guide comb needle is connected to the liquid storage tank, the bottom end of the exhaust needle is installed on the outer wall of the liquid storage tank, and the second exhaust hole is connected to the liquid storage tank.

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