A hair growth liquid rolling ball applicator

Abstract

This utility model discloses a hair growth liquid roller applicator, belonging to the field of applicators. It includes a medicine cylinder with a fixed block inside and a sliding rod slidably connected inside. A dispensing port is located in the middle of the fixed block, which divides the inside of the medicine cylinder into a first inner cavity and a second inner cavity. The outer wall of the second inner cavity has graduation lines. In this design, the medicine cylinder is divided into the first and second inner cavities by the fixed block, with the length of the first inner cavity being twice that of the second inner cavity, forming a graded medicine storage space. Combined with the graduation lines on the outer wall of the second inner cavity, users can intuitively grasp the remaining amount of medicine and the amount dispensed per application, avoiding dosage deviations caused by subjective application. Furthermore, the diameter of the sealing block is larger than the diameter of the dispensing port, reliably sealing the channel under normal conditions and opening the dispensing port only when the sliding rod is pressed, achieving controlled flow of medicine from the first inner cavity to the second inner cavity, preventing waste caused by uncontrolled outflow of medicine from the source.

Description

Technical Field

[0001] This utility model relates to the field of medicine application devices, and more specifically, to a hair growth liquid roller application device. Background Technology

[0002] In today's society, hair loss is becoming increasingly common, causing distress to many people. Currently, hair regrowth treatments mainly rely on medication, physical therapy, and surgery.

[0003] In the prior art, such as the Chinese patent with publication number "CN219815013U", a "variable skin application device" is proposed, which includes a tank for storing liquid medicine, a dispensing tube, a limiting member, and a pressure relief structure. Multiple dispensing tubes are provided and are evenly fixed at the bottom of the tank and communicate with the inside of the tank. A ball bearing is rolled on the inner side of the bottom of the dispensing tube. A piston is slidably connected inside the tank. A pressure rod is fixed on the piston. The limiting member is located inside the dispensing tube to restrict the up and down movement of the ball bearing. The pressure relief structure is located on the piston to facilitate the piston entering the tank.

[0004] However, the aforementioned patents cannot accurately control the amount of medication applied. They rely on the piston and lever to dispense the medication, lacking a precise dosage control structure. Users find it difficult to control the amount of medication during the pressing process, which can easily lead to problems such as applying too much medication at once, resulting in wasted medication and scalp discomfort, or applying too little medication, affecting the treatment effect. This lack of medication control makes the medication application process dependent on user experience, making it impossible to guarantee the consistency of the dosage each time, thus affecting the stability and reliability of the treatment. Utility Model Content

[0005] In view of the problems existing in the prior art, the purpose of this utility model is to provide a hair growth liquid roller applicator that can accurately control the amount of medicine applied.

[0006] To solve the above problems, the present invention adopts the following technical solution.

[0007] A hair growth liquid roller applicator includes a medicine tube, a fixed block fixedly connected inside the medicine tube, a sliding rod slidably connected inside the medicine tube, a dispensing port in the middle of the fixed block, and the fixed block dividing the inside of the medicine tube into a first inner cavity and a second inner cavity. The outer wall of the second inner cavity has graduation lines. The length of the first inner cavity is twice that of the second inner cavity. A sealing block is fixedly connected to the bottom end of the sliding rod. The sealing block is located below the fixed block and inside the second inner cavity. The diameter of the sealing block is larger than the diameter of the dispensing port.

[0008] Furthermore, a first spring is fixedly connected to the outer wall of the sliding rod, and the bottom end of the first spring is fixedly connected to the top of the fixing block.

[0009] Furthermore, a sealing cap is threadedly connected to the upper part of the outer wall of the cartridge, a connecting rod is slidably connected to the middle part of the sealing cap, a pressing block is fixedly connected to the lower part of the connecting rod, and the lower part of the pressing block is in contact with the top of the sliding rod.

[0010] Furthermore, a sealing ring is fixedly connected to the center of the upper part of the sealing cover, and the connecting rod is located inside the sealing ring.

[0011] Furthermore, the lower part of the cartridge is connected to multiple dispensing tubes, and the bottom end of each dispensing tube is slidably connected to a ball bearing.

[0012] Furthermore, a movable tube is slidably connected inside the dispensing tube, the bottom end of the movable tube is attached to the top of the ball bearing, and multiple dispensing holes are opened on the lower part of the outer wall of the movable tube.

[0013] Furthermore, a second spring is fixedly connected to the upper part of the movable tube, and the top end of the second spring is fixedly connected to the inner wall of the dispensing tube.

[0014] Furthermore, a limiting block is fixedly connected to the outer wall of the movable tube, and a protrusion is fixedly connected to the lower part of the inner wall of the dispensing tube, with the upper part of the limiting block abutting against the lower part of the protrusion.

[0015] In summary, this utility model has at least one of the following beneficial technical effects:

[0016] In this design, the cartridge is divided into two inner cavities, Cavity 1 and Cavity 2, by a fixed block. Cavity 1 is twice the length of Cavity 2, creating a tiered medication storage space. Combined with the graduations on the outer wall of Cavity 2, users can intuitively monitor the remaining medication volume and the amount dispensed per dose, avoiding dosage errors caused by guesswork. Furthermore, the diameter of the sealing block is larger than the diameter of the dispensing port, reliably sealing the channel under normal conditions. The dispensing port only opens when the sliding rod is pressed, allowing for controlled flow of medication from Cavity 1 to Cavity 2, preventing waste caused by uncontrolled medication outflow from the source. Attached Figure Description

[0017] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0018] Figure 2 This is a schematic diagram of the internal structure of the traditional Chinese medicine tube of this utility model;

[0019] Figure 3 for Figure 2 Enlarged structural diagram of region A in the middle;

[0020] Figure 4 This is a schematic diagram showing the positional relationship between the pressing block and the sealing cap in this utility model;

[0021] Figure 5This is a schematic diagram of the internal structure of the medicine outlet tube in this utility model.

[0022] Explanation of the labels in the diagram:

[0023] 1. Medicine cartridge; 10. Scale line; 101. No. 1 inner cavity; 102. No. 2 inner cavity; 11. Sealing cap; 12. Connecting rod; 13. Sealing ring; 14. Pressing block; 15. Sliding rod; 16. Sealing block; 17. No. 1 spring; 18. Fixing block; 19. Medicine inlet; 2. Medicine outlet tube; 20. Protrusion; 21. Ball bearing; 22. Movable tube; 23. Medicine outlet hole; 24. Limiting block; 25. No. 2 spring. Detailed Implementation

[0024] The technical solution of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without creative effort are within the scope of protection of this utility model.

[0025] In the description of this utility model, it should be noted that the terms "upper," "lower," "inner," "outer," "top / bottom," etc., indicating the orientation or positional relationship are 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. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0026] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installed," "equipped with," "sleeved / connected," "connected," etc., should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; 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 a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0027] Example 1:

[0028] Please see Figure 1-5A hair growth liquid roller applicator includes a medicine cartridge 1, a fixing block 18 fixedly connected inside the medicine cartridge 1, and a sliding rod 15 slidably connected inside the medicine cartridge 1. A dispensing port 19 is provided in the middle of the fixing block 18. The fixing block 18 divides the interior of the medicine cartridge 1 into a first inner cavity 101 and a second inner cavity 102. The outer wall of the second inner cavity 102 has graduation lines 10. The length of the first inner cavity 101 is twice that of the second inner cavity 102. A sealing block 16 is fixedly connected to the bottom end of the sliding rod 15, located below the fixing block 18 and below the second inner cavity 102. Inside the inner cavity 102, the diameter of the sealing block 16 is larger than the diameter of the dispensing port 19. A first spring 17 is fixedly connected to the outer wall of the sliding rod 15. The bottom end of the first spring 17 is fixedly connected to the top of the fixing block 18. A sealing cap 11 is threadedly connected to the top of the outer wall of the cartridge 1. A connecting rod 12 is slidably connected to the middle of the sealing cap 11. A pressing block 14 is fixedly connected to the bottom of the connecting rod 12. The bottom of the pressing block 14 is in contact with the top of the sliding rod 15. A sealing ring 13 is fixedly connected to the middle of the top of the sealing cap 11. The connecting rod 12 is located inside the sealing ring 13.

[0029] In this embodiment, the cartridge 1 is divided into a first inner cavity 101 and a second inner cavity 102 by a fixing block 18. The length of the first inner cavity 101 is twice that of the second inner cavity 102. Combined with the scale line 10 on the outer wall of the second inner cavity 102, the user can clearly know the remaining amount of medicine and the amount to be used each time, so as to achieve precise medication.

[0030] The diameter of the sealing block 16 is larger than that of the medicine inlet 19. Under normal conditions, it can effectively block the medicine inlet 19. Only when the sliding rod 15 is pressed will the sealing block 16 leave the medicine inlet 19, allowing the medicine to flow from the first inner cavity 101 into the second inner cavity 102. This makes it easier to control the dosage of medicine each time and avoids waste of medicine due to uncontrollable dosage.

[0031] The No. 1 spring 17, which is fixedly connected to the outer wall of the sliding rod 15, can drive the sliding rod 15 and the sealing block 16 to automatically reset after the user releases the pressing of the connecting rod 12, and close the medicine outlet 19 again without manual reset, thus simplifying the operation process.

[0032] The sealing cap 11, which is threaded onto the upper part of the outer wall of the cartridge 1, allows users to easily open it to replenish the medicine, making the operation simple and convenient.

[0033] The sealing ring 13, which is fixedly connected to the upper center of the sealing cap 11, seals the gap between the connecting rod 12 and the sealing cap 11, preventing the liquid medicine from leaking out from this part and ensuring the airtightness of the cartridge 1.

[0034] Under normal conditions, the sealing block 16 fits tightly against the bottom of the fixing block 18. Since its diameter is larger than that of the medicine outlet 19, it can effectively prevent the medicine in the first inner cavity 101 from flowing into the second inner cavity 102 without operation, further enhancing the leak-proof performance of the device, avoiding the evaporation or contamination of the medicine, and ensuring the efficacy of the medicine.

[0035] Example 2:

[0036] Please see Figure 1-5 A hair growth liquid roller applicator is provided, wherein a medicine cylinder 1 has multiple medicine outlet tubes 2 connected to its lower part, a ball bearing 21 is slidably connected to the bottom end of the medicine outlet tube 2, a movable tube 22 is slidably connected inside the medicine outlet tube 2, the bottom end of the movable tube 22 is in contact with the top of the ball bearing 21, multiple medicine outlet holes 23 are opened on the lower part of the outer wall of the movable tube 22, a second spring 25 is fixedly connected to the top of the movable tube 22, the top end of the second spring 25 is fixedly connected to the inner wall of the medicine outlet tube 2, a limiting block 24 is fixedly connected to the outer wall of the movable tube 22, and a protrusion 20 is fixedly connected to the lower part of the inner wall of the medicine outlet tube 2, with the upper part of the limiting block 24 abutting against the lower part of the protrusion 20.

[0037] In this embodiment, multiple dispensing tubes 2 are connected to the bottom of the cartridge 1. With the help of the ball bearing 21 slidably connected at the bottom, the medicine can be evenly applied by rolling the ball bearing 21 on the scalp, avoiding the problem of local medicine accumulation or leakage that occurs in traditional application methods.

[0038] Multiple dispensing holes 23 are provided on the lower outer wall of the movable tube 22 inside the dispensing tube 2. After the liquid medicine flows out through the dispensing holes 23, it comes into direct contact with the ball bearing 21 and is then transferred to the scalp by the rolling of the ball bearing 21, so that the liquid medicine is distributed more evenly and the absorption effect is improved.

[0039] The second spring 25, which is fixedly connected to the upper part of the movable tube 22, is fixedly connected to the inner wall of the dispensing tube 2. When the ball 21 contacts the scalp, the second spring 25 can adapt to the curvature of the scalp and extend and retract accordingly, so as to drive the movable tube 22 and the ball 21 to flexibly adjust the height, ensuring that the ball 21 is always in close contact with the scalp, and can achieve stable application even on uneven parts of the scalp.

[0040] The limiting block 24, which is fixedly connected to the outer wall of the movable tube 22, abuts against the lower part of the protrusion 20. This effectively limits the sliding stroke of the movable tube 22, preventing the movable tube 22 from detaching from the dispensing tube 2 or becoming loose from the connection with the ball bearing 21 due to excessive sliding, thus enhancing the stability of the overall structure.

[0041] Working principle: The hair growth liquid is initially stored in the first inner cavity 101 of the medicine cartridge 1. At this time, under the natural elastic force of the first spring 17, the sliding rod 15 drives the sealing block 16 to fit tightly against the bottom of the fixed block 18. Since the diameter of the sealing block 16 is larger than the diameter of the medicine outlet 19 in the middle of the fixed block 18, the medicine outlet 19 is in a closed state, and the liquid channel between the first inner cavity 101 and the second inner cavity 102 is blocked. The liquid cannot flow into the second inner cavity 102 on its own, ensuring the stable storage of the liquid when it is not used. At the same time, the sealing cap 11 connected by threads on the upper part of the outer wall of the medicine cartridge 1, together with the sealing ring 13 above it, seals the top of the device to prevent the liquid from leaking from the gap between the connecting rod 12 and the sealing cap 11.

[0042] When the user needs to use the medicine, press the connecting rod 12 that is slidably connected in the middle of the sealing cap 11. The connecting rod 12 pushes the pressing block 14 downward, and the pressing block 14 squeezes the top of the sliding rod 15, causing the sliding rod 15 to slide downward against the elastic force of the first spring 17. The sealing block 16 at the bottom of the sliding rod 15 moves down and disengages from the fixed block 18, opening the medicine outlet 19. The hair growth liquid in the first inner cavity 101 flows into the second inner cavity 102 through the medicine outlet 19. The user can control the pressure and time of pressing the connecting rod 12 by observing the scale line 10 on the outer wall of the second inner cavity 102 to achieve quantitative delivery of the medicine. After releasing the connecting rod 12, the first spring 17 returns to its original shape, causing the sliding rod 15 and the sealing block 16 to return to their original position. The sealing block 16 closes the medicine outlet 19 again, stopping the flow of the medicine from the first inner cavity 101 to the second inner cavity 102.

[0043] The liquid medicine flowing into the second inner cavity 102 enters the medicine outlet tube 2 through multiple outlet tubes 2 connected to the bottom of the medicine cartridge 1. In its natural state, the movable tube 22 is in its initial position under the support of the second spring 25, with the bottom end of the movable tube 22 in contact with the upper part of the ball bearing 21. When the ball bearing 21 contacts the scalp and is subjected to pressure, the ball bearing 21 pushes the movable tube 22 upward, compressing the second spring 25 and sliding upward. At this time, the multiple medicine outlet holes 23 opened on the lower part of the outer wall of the movable tube 22 are exposed, and the liquid medicine in the second inner cavity 102 flows through the medicine outlet holes 23. The ball 21 contacts the scalp and rolls on the scalp as the user moves the applicator, spreading the medicine evenly. The limiting block 24 on the outer wall of the movable tube 22 abuts against the lower part of the protrusion 20 inside the medicine dispensing tube 2, limiting the maximum sliding distance of the movable tube 22 and preventing the movable tube 22 from detaching from the medicine dispensing tube 2. When the ball 21 leaves the scalp and the pressure disappears, the second spring 25 returns to its original shape, causing the movable tube 22 to return to its original position. The medicine dispensing hole 23 is blocked by the inner wall of the medicine dispensing tube 2, stopping the medicine dispensing and preventing leakage of the medicine when not in use.

[0044] The above description is merely a preferred embodiment of this utility model; however, the protection scope of this utility model is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the technical scope disclosed in this utility model, based on the technical solution and its improved concept, should be included within the protection scope of this utility model.

Claims

1. A hair growth liquid roller applicator, comprising a medicine cartridge (1), characterized in that: A fixing block (18) is fixedly connected inside the cartridge (1), and a sliding rod (15) is slidably connected inside the cartridge (1). A medicine inlet (19) is opened in the middle of the fixing block (18). The fixing block (18) divides the inside of the cartridge (1) into a first inner cavity (101) and a second inner cavity (102). The outer wall of the second inner cavity (102) is provided with scale lines (10). The length of the first inner cavity (101) is twice that of the second inner cavity (102). A sealing block (16) is fixedly connected to the bottom end of the sliding rod (15). The sealing block (16) is located below the fixing block (18) and inside the second inner cavity (102). The diameter of the sealing block (16) is larger than the diameter of the medicine inlet (19).

2. The hair growth solution rolling ball applicator of claim 1, wherein: A first spring (17) is fixedly connected to the outer wall of the sliding rod (15), and the bottom end of the first spring (17) is fixedly connected to the top of the fixing block (18).

3. The hair growth solution rolling ball applicator of claim 2, wherein: A sealing cap (11) is threaded onto the upper part of the outer wall of the cartridge (1). A connecting rod (12) is slidably connected to the middle part of the sealing cap (11). A pressing block (14) is fixedly connected to the lower part of the connecting rod (12). The lower part of the pressing block (14) is in contact with the top of the sliding rod (15).

4. The hair growth solution rolling ball applicator of claim 3, wherein: A sealing ring (13) is fixedly connected to the middle of the upper part of the sealing cover (11), and the connecting rod (12) is located inside the sealing ring (13).

5. The hair growth solution rolling ball applicator of claim 1, wherein: The lower part of the medicine cartridge (1) is connected to a plurality of medicine outlet tubes (2), and the bottom end of the medicine outlet tubes (2) is slidably connected to a ball bearing (21).

6. The hair growth solution rolling ball applicator of claim 5, wherein: The inside of the dispensing tube (2) is slidably connected to a movable tube (22), the bottom end of the movable tube (22) is attached to the top of the ball (21), and multiple dispensing holes (23) are opened on the lower part of the outer wall of the movable tube (22).

7. The hair growth solution rolling ball applicator of claim 6, wherein: A second spring (25) is fixedly connected to the top of the active tube (22), and the top of the second spring (25) is fixedly connected to the inner wall of the medicine dispensing tube (2).

8. The hair growth solution rolling ball applicator of claim 7, wherein: The outer wall of the active tube (22) is fixedly connected to a limiting block (24), and the lower part of the inner wall of the dispensing tube (2) is fixedly connected to a protrusion (20). The upper part of the limiting block (24) abuts against the lower part of the protrusion (20).

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