drip head

Abstract

This application provides an infusion head, including an outer cap, an inner cap, and a tube body. The inner cap is fitted inside the outer cap and has a flat portion and an annular wall. A first insertion post protrudes upward from the center of the flat portion, and a second insertion post extends downward to form the second insertion post. The two insertion posts are connected to each other and allow the tube body to be inserted. The first insertion post has a predetermined height, within which the tube body can slide up and down, allowing it to fit snugly against the bottom of the bottle to facilitate the absorption of residual liquid. The entire structure of the infusion head is made of polypropylene as a single material, simplifying the recycling process and improving environmental benefits.

Description

Technical Field

[0001] This application relates to an drip tip, and more particularly to a drip tip with a double-layer cap structure. The movable tube design facilitates the user's aspiration of residual liquid at the bottom of the bottle. Furthermore, the use of a single material improves upon the inconvenience of recycling traditional drip tips. Background Technology

[0002] Existing dropper products are mostly used for dispensing and filling liquid pharmaceuticals, cosmetics, or laboratory reagents. They typically consist of a squeeze tip and a slender tube. The squeeze tip is often made of soft silicone or rubber to facilitate finger pressing and liquid aspiration; while the tube is made of a transparent, rigid material, such as plastic or glass, to allow for observation of the contents and control of the dosage. While this structure provides basic liquid aspiration and dispensing functions, the combination of heterogeneous materials among the components makes overall recycling difficult. Furthermore, traditional tubes are usually of fixed length and lack adjustment mechanisms. As the liquid level decreases, especially near the bottom, the gap between the tip of the tube and the bottom often makes it difficult for the user to aspirate the remaining liquid, resulting in waste.

[0003] Furthermore, due to the different materials used for the extrusion head and the tube body, manual disassembly and separation are often required for recycling after use to ensure compliance with classification standards. This disassembly process not only increases processing costs and the user's workload but may also pose hygiene risks or material waste. In addition, some products employ ultrasonic welding or forced insertion methods to improve sealing and assembly strength, making disassembly and classification even more difficult during recycling. Therefore, in today's increasingly environmentally conscious world, existing IV drip heads still require improvement in terms of ease of recycling, material integration, and the integrity of the contents. Utility Model Content

[0004] The technical problem to be solved by this application is to provide an drip tip, especially an drip tip with a double-layer cap structure. Through the design of the movable tube, it is convenient for users to draw residual liquid from the bottom of the bottle. In addition, the use of a single material improves the problem of inconvenient recycling of traditional drip tips.

[0005] According to the purpose of this application, an infusion head is provided, including an outer cover, an inner cover, and a tube body. The inner cover has a first insertion post protruding upward from the center of a flat portion, and a second insertion post extending downward. The first insertion post and the second insertion post are connected to each other. The first insertion post has a slot inside, and the slot has a predetermined height. The tube body is inserted into the first insertion post and the second insertion post, and the tube body can move up and down within the predetermined height range.

[0006] The predetermined height is between 0.5mm and 8mm.

[0007] The top end of the tube has an annular connecting part formed on its outer periphery.

[0008] The outer surface of the flat portion of the inner cover is provided with an annular groove.

[0009] The inner surface of the flat portion of the inner cover has an annular protrusion.

[0010] The outer surface of one ring wall of the inner cover is provided with multiple positioning stripes, which extend along the vertical direction.

[0011] Among them, an annular positioning rib is provided on the bottom edge of the inner surface of one ring wall of the outer cover.

[0012] The outer cover is provided with a compression head, and the compression head is spaced apart from the first insertion post by a distance.

[0013] This distance is between 0.2mm and 1.2mm.

[0014] The outer cover, the inner cover, and the tube are all made of polypropylene (PP).

[0015] The other effects and embodiments of this application are described in detail below with reference to the accompanying drawings. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0017] Figure 1 This is an exploded view of the components in this application;

[0018] Figure 2 This is a cross-sectional view of this application;

[0019] Figure 3 and Figure 4 This is a schematic diagram of the tube's operation in this application.

[0020] Symbol Explanation

[0021] 10: Outer cover; 11: Circular positioning rib

[0022] 12: Extrusion head 20: Inner cover

[0023] 21: Positioning stripe 22: First insertion post

[0024] 221: Slot 22a: Limiting and reducing notch

[0025] 23: Second insertion post; 25: Annular groove

[0026] 26: Annular convex portion 30: Pipe body

[0027] 31: Annular connecting part H: Predetermined height

[0028] T: Distance X: Horizontal direction

[0029] Z: Vertical direction Detailed Implementation

[0030] To clearly illustrate the specific implementation methods, structures, and effects achieved in this application, embodiments are provided and described below with reference to drawings:

[0031] The directional descriptions such as "front," "back," "up," "down," "left," and "right" used in this document are for ease of understanding only. This application is not limited to these directions and can be adjusted according to actual circumstances. In the embodiments of this application, the up-down direction is the vertical direction Z, and the left-right direction is the horizontal direction X.

[0032] Please see Figures 1 to 2 The illustration depicts an infusion head installed in a bottle to draw liquid from the bottle. The infusion head includes an outer cap 10, an inner cap 20, and a tube 30, wherein the inner cap 20 is fitted inside the outer cap 10, and the tube 30 is inserted into both the outer cap 10 and the inner cap 20.

[0033] Further explanation: The inner cover 20 has a flat portion and an annular wall. The outer surface of the annular wall of the inner cover 20 is provided with multiple positioning stripes 21 extending in a vertical direction Z. The inner surface of the annular wall of the outer cover 10 is provided with corresponding mating patterns (not shown). When the inner cover 20 and the outer cover 10 are combined, the positioning stripes 21 and the mating patterns interlock to form a limiting fit structure, preventing the inner cover 20 from loosening or rotating after assembly. In addition, the bottom edge of the inner surface of the annular wall of the outer cover 10 is provided with an annular positioning rib 11 to enhance assembly stability and further improve the structural strength and stability of the inner cover 20 and the outer cover 10 after combination.

[0034] To further explain, a first insertion post 22 protrudes upward from the center of the flat portion of the inner cover 20, and extends downward to form a second insertion post 23. The first insertion post 22 and the second insertion post 23 are connected to each other so that the tube body 30 can be inserted.

[0035] Please see Figure 3 and Figure 4The first insertion post 22 has a slot 221 inside, which has a predetermined height H. After the tube 30 is inserted into the first insertion post 22 and the second insertion post 23, the tube 30 can move up and down within the predetermined height H of the first insertion post 22 to facilitate the suction of residual liquid from the bottom of the bottle. In the embodiments of this application, the predetermined height H is between 0.5 mm and 8 mm, preferably between 2.3 mm and 2.8 mm.

[0036] In addition, an annular connecting portion 31 is formed on the outer periphery of the top end of the tube body 30, and the opening of the slot 221 of the first insertion post 22 is a limiting constriction 22a. When the tube body 30 is inserted into the first insertion post 22, the limiting constriction 22a acts as a limit, so that the annular connecting portion 31 of the tube body 30 can only move up and down within the predetermined height H of the first insertion post 22 and cannot be pulled out upwards. This prevents the tube body 30 from loosening due to squeezing or shaking during use, thereby improving the overall durability and safety of the product.

[0037] In the embodiments of this application, the outer cover 10 is provided with a squeezing head 12. When the drip head is assembled, a distance T is spaced between the squeezing head 12 and the first insertion post 22. This distance T not only facilitates the user's application of force but also provides sufficient deformation space for the squeezing head 12, allowing it to produce appropriate elastic deformation when pressed and return to its original shape after release, thereby improving squeezing efficiency and user feel. The distance T is between 0.2mm and 1.2mm, preferably between 0.5mm and 0.9mm. In addition, the side length of the squeezing head 12 that is pressed by the user's finger is approximately 14mm to 20mm, and the top of the first insertion post 22 is maintained at the bottom of the squeezing head 12 to provide a better pressing feel.

[0038] Please see Figure 2 The outer surface of the flat portion of the inner cap 20 is provided with an annular groove 25. When the drip head is combined with the bottle body, the annular groove 25 can produce a slight deformation, providing buffer and elastic space, thereby compensating for dimensional tolerances and improving the tightness of the fit, ensuring that the drip head and the bottle body fit tightly and preventing liquid leakage.

[0039] In addition, the inner surface of the flat portion of the inner cap 20 is provided with an annular protrusion 26. When the drip head is combined with the bottle body, the annular protrusion 26 can form a tight contact with the inner wall of the bottle mouth, further improving the overall sealing performance and effectively preventing liquid leakage or evaporation.

[0040] In the embodiments of this application, the outer cover 10, the inner cover 20 and the tube body 30 are all made of polypropylene (PP). By using a unified material source, the drip head can be directly recycled after use without disassembly or sorting, which improves the convenience and efficiency of recycling operations and meets environmental protection requirements.

[0041] In summary, this application effectively improves the assembly stability and sealing performance of the drip head through the double-layer cap structure formed by the outer cap 10 and the inner cap 20; and by setting a predetermined height H through the first insertion post 22, the tube body 30 can slide up and down, thereby facilitating the absorption of residual liquid at the bottom of the bottle. Furthermore, by using a single material to manufacture the outer cap 10, inner cap 20, and tube body 30, the recycling process is simplified, and the inconvenience of traditional drip head recycling is effectively improved, thereby enhancing the overall functionality, ease of operation, and environmental benefits of the product.

[0042] The embodiments and / or implementation methods described above are merely preferred embodiments and / or implementation methods for implementing the technology of this application, and are not intended to limit the implementation methods of the technology of this application in any way. Any person skilled in the art may make some modifications or alterations to other equivalent embodiments without departing from the scope of the technical means disclosed in this application, but these should still be regarded as the technology or embodiments that are substantially the same as those of this application.

Claims

1. An infusion head, comprising an outer cap, an inner cap, and a tube body, characterized in that: A first insertion post protrudes upward from the center of a flat portion of the inner cover, and a second insertion post extends downward to form a second insertion post. The first insertion post and the second insertion post are connected to each other. A slot is formed inside the first insertion post, and the slot has a predetermined height. The tube is inserted into the first insertion post and the second insertion post, and the tube can move up and down within the predetermined height range.

2. The drip head according to claim 1, characterized in that The predetermined height is between 0.5mm and 8mm.

3. The drip head of claim 1, wherein The top edge of the tube forms a ring-shaped connection.

4. The drip head of claim 1, wherein The outer surface of the flat portion of the inner cover is provided with an annular groove.

5. The drip head of claim 1, wherein The inner surface of the flat portion of the inner cover has an annular protrusion.

6. The drip head of claim 1, wherein The outer surface of one ring wall of the inner cover is provided with multiple positioning stripes, which extend in a vertical direction.

7. The drip head of claim 1, wherein The bottom edge of the inner surface of one ring wall of the outer cover is provided with a ring-shaped positioning rib.

8. The drip head of claim 1, wherein, The outer cover is provided with a compression head, and the compression head is spaced apart from the first insertion post by a distance.

9. The drip head according to claim 8, characterized in that This distance is between 0.2mm and 1.2mm.

10. The drip head according to any one of claims 1 to 9, characterized in that The outer cover, the inner cover, and the tube are all made of polypropylene.

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