Oral liquid bottle cap with quantitative dropping hole
By designing an oral liquid bottle cap with a metering dropper, the problem of inaccurate metering in existing oral liquid bottle caps has been solved, achieving stable dripping of the liquid and safe administration, thus improving the convenience and safety of medication.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- JIANGSU MINGDE PHARMACEUTICAL CO LTD
- Filing Date
- 2025-07-04
- Publication Date
- 2026-06-26
AI Technical Summary
Existing oral liquid bottle caps make it difficult to achieve precise dosage during administration, and the drip rate and weight are not easy to control, resulting in problems of drug contamination and waste.
Design an oral liquid bottle cap with a metering dropper. The inner stopper is equipped with a dripping channel and an airflow channel. Combined with a sealing ring and threaded connection, it ensures that the liquid is steadily dripped out through the metering dropper, avoiding contamination and waste caused by inserting an external straw.
It achieves precise quantitative dispensing of medicine, eliminates human error, improves the accuracy of drug administration, reduces drug waste and the risk of contamination, and enhances the safety and convenience of medication.
Smart Images
Figure CN224410144U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of oral liquid bottle cap technology, and in particular relates to an oral liquid bottle cap with a metering dropper. Background Technology
[0002] Currently, most oral liquid medications for children on the market use external droppers, syringes, or measuring cups for quantitative administration. These methods of administration often involve reusing the measuring containers, requiring additional cleaning and storage, and may result in liquid residue adhering to the container, reducing the dosage and affecting efficacy.
[0003] Some liquid dispensing products on the market avoid contamination of the liquid by setting up dispensing holes and dripping holes. However, these products still have some problems in the design of the inner diameter of the dispensing holes and dripping holes, which cannot guarantee a stable and uniform dispensing process. Utility Model Content
[0004] In order to overcome the shortcomings of existing technologies, the purpose of this utility model is to propose an oral liquid bottle cap with a quantitative drip hole, which does not require an external straw or dropper and has a built-in quantitative drip function, thus solving the problem that most oral solutions cannot control the drip rate and weight during administration and cannot achieve precise quantitative administration.
[0005] To achieve the above objectives, the technical solution adopted by this utility model is: an oral liquid bottle cap with a metering dropper, comprising:
[0006] The inner stopper is inserted into the mouth of the oral liquid bottle;
[0007] Place the outer cap over the mouth of the oral liquid bottle and cover it with the inner stopper.
[0008] The inner plug includes a plug body; a dripping channel is provided in the middle of the plug body, a dripping port is provided at the top of the plug body, and an inlet is provided at the bottom of the plug body. The dripping port and the dripping channel are interconnected, and the dripping channel and the inlet are interconnected. An extension structure is provided on one side of the plug body. An airflow channel I that runs vertically through the extension structure is provided inside the extension structure. An airflow channel II that runs vertically through the plug body is provided inside the plug body. The airflow channel I and the airflow channel II are connected.
[0009] Furthermore, a positioning ring is provided on the top side wall of the stopper, and the positioning ring covers the top of the oral liquid bottle mouth wall.
[0010] Furthermore, at least one sealing ring is provided on the outer surface of the plug body. The sealing ring is connected to the inner wall of the bottle mouth through mutual contact, thereby achieving a seal between the inner plug and the inner wall of the bottle mouth.
[0011] Furthermore, the outer wall of the oral liquid bottle opening and the inside of the outer cap are screwed together to achieve a seal between the outer cap and the bottle body, as well as to facilitate opening and closing for use.
[0012] Furthermore, a protruding plug is provided at the center of the top of the outer cover, and after the cover is closed, the protruding plug is inserted into the top drip port of the inner plug.
[0013] Furthermore, a pressure ring is provided inside the top of the outer cap, facing the top of the oral liquid bottle opening.
[0014] Furthermore, the diameter of the dripping orifice is 5.3-5.5 mm and the length is 2.8-3.2 mm; the diameter of the dripping channel is 2.8-3.2 mm and the length is 9.0-13.0 mm; the diameter of the plug inlet is 0.4-0.6 mm; and the diameter of the air outlet of the airflow channel I is 0.8-1.0 mm.
[0015] The beneficial effects of adopting this technical solution are:
[0016] This invention proposes an oral liquid bottle cap with a quantitative dripping orifice, aiming to completely solve the common problems of existing oral liquid bottles in terms of difficulty in controlling the dripping rate and weight, and the inability to achieve accurate and convenient quantitative administration. This invention abandons the traditional method of relying on external straws or droppers, achieving quantitative dispensing through a precision structure integrated into the bottle cap itself. This brings the following significant technical effects:
[0017] Achieve precise quantitative dosing: The quantitative dropper orifice structure ensures a high degree of consistency and repeatability in the volume (weight) of the droplets dispensed each time the bottle is tilted. Eliminate human error: Directly eliminates dosage fluctuations caused by human factors such as squeezing force, angle, and speed of traditional pipettes, significantly improving dosing accuracy, especially suitable for medications requiring strict dosage by drop count or minute volume (such as infant medications, high-concentration drugs, and special hormone drugs). Countable and controllable dosage: Users can easily and accurately obtain the required dosage simply by counting drops, without relying on graduated measuring cups or complex measuring tools; the operation is intuitive and simple.
[0018] Effective control of drip rate and weight: Optimized fluid dynamics: The geometry of the metering orifice (orifice diameter, channel length) is specially designed, utilizing fluid dynamics principles such as liquid surface tension, viscosity, and gravity to ensure that the medication forms droplets and drips at a relatively stable and controllable rate. Prevention of continuous flow or leakage: The structural design effectively prevents the medication from forming an uncontrolled continuous flow or dripping too rapidly during pouring, ensuring the discreteness and controllability of the droplets. Consistency assurance: Under different batches and different user operations, the drip weight and drip rate of the medication maintain good consistency, ensuring a stable user experience and therapeutic effect.
[0019] Improved Medication Convenience: No Extra Tools Required: The bottle cap features a built-in drip function, eliminating the hassle of finding, inserting, and cleaning straws or droppers. Simply open the cap and use; the operation is greatly simplified. Easy Operation: Users simply hold the bottle and tilt it to a specific angle; the medication will drip out at a controlled rate, and the dosage can be counted. Reduced Waste: Precise dispensing reduces waste caused by over-pouring or straw residue, which is especially significant for expensive medications.
[0020] Enhancing medication safety and hygiene: Reducing contamination risks: Avoiding cross-contamination risks associated with external straws (e.g., placing the straw back into the bottle after it has touched the mouth or table). The relatively closed structure of the dispensing nozzle, with a sealing ring between the inner stopper and the inner wall of the bottle mouth, and a threaded connection between the outer cap and the bottle body, minimizes the medication's contact with the external environment. Furthermore, the medication is dispensed directly into the mouth or container, reducing the possibility of contamination during intermediate steps. Preventing accidental overdose: The precise dispensing mechanism fundamentally reduces the risk of overdosing due to inaccurate visual estimation or operational errors, thus improving medication safety. Attached Figure Description
[0021] Figure 1 This is a cross-sectional view of the structure of an oral liquid bottle cap with a metering dropper hole according to the present invention;
[0022] Figure 2 This is a cross-sectional view of the inner plug in an embodiment of the present invention;
[0023] Figure 3 This is a three-dimensional structural diagram of the inner plug in an embodiment of the present invention;
[0024] Among them, 1 is the inner stopper, 2 is the outer cap, 3 is the mouth of the oral liquid bottle; 11 is the stopper body, 12 is the drip channel, 13 is the drip port, 14 is the inlet, 15 is the extension body, 16 is the airflow channel I, 17 is the airflow channel II, 18 is the positioning ring, 19 is the sealing ring; 21 is the raised stopper body, and 22 is the pressure ring. Detailed Implementation
[0025] To make the purpose, technical solution and advantages of this utility model clearer, the present utility model will be further described below with reference to the accompanying drawings.
[0026] In this embodiment, see Figures 1-3 As shown, an oral liquid bottle cap with a metering dropper includes:
[0027] Insert the inner stopper 1 into the mouth 3 of the oral liquid bottle;
[0028] The outer cap 2 is placed on the mouth 3 of the oral liquid bottle, and the inner stopper 1 is placed inside it;
[0029] The inner plug 1 includes a plug body 11; a dripping channel 12 is provided in the middle of the plug body 11, a dripping port 13 is provided at the top of the plug body 11, and an inlet 14 is provided at the bottom of the plug body 11. The dripping port 13 communicates with the dripping channel 12, and the dripping channel 12 communicates with the inlet 14. An extension body 15 structure is provided on one side of the plug body 11. An airflow channel I 16 that runs vertically through the extension body 15 structure is provided inside the extension body 15 structure. An airflow channel II 17 that runs vertically through the plug body 11 is provided inside the plug body 11. The airflow channel I 16 communicates with the airflow channel II 17.
[0030] As an optimization of the above embodiments, such as Figure 2 and Figure 3 As shown, a positioning ring 18 is provided on the top side wall of the stopper 11, and the positioning ring 18 covers the top of the oral liquid bottle mouth 3.
[0031] At least one sealing ring 19 is provided on the outer surface of the stopper 11 to ensure a tight seal between the inner stopper 1 and the inner wall of the oral liquid bottle opening 3. When multiple sealing rings 19 are used, each sealing ring 19 is parallel to the others. Figure 3 As shown.
[0032] As an optimization of the above embodiments, such as Figure 1 As shown, the outer wall of the oral liquid bottle opening 3 and the inside of the outer cap 2 are screwed together by threads.
[0033] A protruding plug 21 is provided at the top center of the outer cover 2. After the cover is closed, the protruding plug 21 is inserted into the top drip port 13 of the inner plug 1.
[0034] A pressure ring 22 is provided inside the outer cover 2, facing the top of the oral liquid bottle opening 3. The pressure ring 22 is used to press and fix the outer positioning ring 18 of the inner plug 1 to the top of the oral liquid bottle opening 3, thus stably fixing the inner plug 1 at the oral liquid bottle opening 3.
[0035] 8. As an optimization of the above embodiments, such as... Figure 2 As shown, the diameter of the dripping port 13 is D1 = 5.3-5.5 mm, and the length is L1 = 2.8-3.2 mm; the diameter of the dripping channel 12 is D2 = 2.8-3.2 mm, and the length is L2 = 9.0-13.0 mm; the diameter of the liquid inlet 14 of the plug body 11 is D3 = 0.4-0.6 mm; and the diameter of the air outlet of the airflow channel I 16 is D4 = 0.8-1.0 mm.
[0036] Through repeated experiments, different combinations of pore and drip hole inner diameters were selected to obtain optimal data. After dimensional improvements, this product exhibits a more uniform and stable dripping speed and a more consistent and even dripping weight compared to other products on the market.
[0037] To better understand this utility model, the working principle of this utility model will be described in detail below:
[0038] First, unscrew the outer cap 2, tilt and invert the oral liquid bottle, and the liquid will gather at the bottle mouth, with the bottom of the extended body exposed above the liquid surface. Under the air pressure of the gas channel, the liquid will gather in the drip channel 12 through the inlet 14 and drip out through the drip nozzle 13. The varying diameters of the inlet 14, the drip channel 12, and the drip nozzle 13 allow the liquid to fall slowly and evenly. The quantitative administration is achieved by controlling the dripping speed and weight of the liquid.
[0039] After setting the above dimensions and specifications, the droplets gather on the inner stopper 1 and slide down, with an average dripping rate of 4-5 drops / 5 seconds. No more than one dose should exceed the average weight by ±10%. The total weight of 10 doses should be 4.56-6.17g, and the drop weight difference-volume should be 0.43-0.52ml. This effectively improves the accuracy of oral liquid administration and also helps the body to better absorb and utilize the drug.
[0040] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claims. The scope of protection of this utility model is defined by the appended claims and their equivalents.
Claims
1. A cap for an oral liquid bottle with a metering dropper, characterized in that, include: The inner plug (1) is inserted into the mouth (3) of the oral liquid bottle; The outer cap (2) is placed on the mouth (3) of the oral liquid bottle, and the inner plug (1) is placed inside it; The inner plug (1) includes a plug body (11); a dripping channel (12) is provided in the middle of the plug body (11), a dripping port (13) is provided at the top of the plug body (11), and an inlet (14) is provided at the bottom of the plug body (11). The dripping port (13) communicates with the dripping channel (12), and the dripping channel (12) communicates with the inlet (14). An extension body (15) structure is provided on one side of the plug body (11), and an airflow channel I (16) that runs vertically through the extension body (15) structure is provided inside the extension body (15). An airflow channel II (17) that runs vertically through the plug body (11) is provided inside the plug body (11), and the airflow channel I (16) and the airflow channel II (17) are connected.
2. The oral liquid bottle cap with a metering dropper hole according to claim 1, characterized in that, A positioning ring (18) is provided on the top side wall of the stopper (11), and the positioning ring (18) covers the top of the mouth wall of the oral liquid bottle (3).
3. The oral liquid bottle cap with a metering dropper hole according to claim 2, characterized in that, At least one sealing ring (19) is provided on the outer surface of the plug (11).
4. The oral liquid bottle cap with a metering dropper hole according to claim 1, characterized in that, The outer wall of the oral liquid bottle opening (3) and the inside of the outer cap (2) are screwed together by threads.
5. The oral liquid bottle cap with a metering dropper hole according to claim 4, characterized in that, A protruding plug (21) is provided at the top center of the outer cover (2). After the cover is closed, the protruding plug (21) is inserted into the top drip port (13) of the inner plug (1).
6. The oral liquid bottle cap with a metering dropper hole according to claim 5, characterized in that, A pressure ring (22) is provided at the top of the inner top of the outer cover (2) facing the top of the oral liquid bottle mouth (3).
7. A cap for an oral liquid with a metering dropper hole according to any one of claims 1-6, characterized in that, The diameter of the dripping port (13) is 5.3-5.5 mm and the length is 2.8-3.2 mm; the diameter of the dripping channel (12) is 2.8-3.2 mm and the length is 9.0-13.0 mm; the diameter of the liquid inlet (14) of the plug (11) is 0.4-0.6 mm; and the diameter of the air outlet of the airflow channel I (16) is 0.8-1.0 mm.