A puncturable seal for a water container
By introducing annular grooves and reinforcing ribs into the bottled water sealing cap, a controllable opening structure is designed, which solves the problem of the sealing cap being prone to cracking under high water pressure, thereby improving structural strength and sealing reliability, and providing single-use and anti-counterfeiting functions.
Patent Information
- Application Number
- CN202522027690.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-09-22
- Publication Date
- 2026-08-25
- Estimated Expiration
- 2035-09-22
AI Technical Summary
Existing bottled water sealing caps are prone to deformation or breakage under high water pressure, leading to seal failure and water leakage, especially when used upside down.
A puncture-resistant sealing cap is designed, employing annular grooves and circumferentially distributed reinforcing ribs to enhance the structural strength of the outlet. Straight grooves and C-shaped grooves guide crack propagation, and a sealing ring and tear strip are combined to achieve controllable opening and single-use.
It effectively disperses water pressure stress, prevents outlet deformation or rupture, ensures sealing and safety, reduces the risk of misoperation, and achieves controllable opening and anti-counterfeiting functions.
Smart Images

Figure CN224676820U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of bottled water technology, specifically to an easily puncturable sealing cap for bottled water and a water bottle. Background Technology
[0002] Commercially available bottled water typically consists of a bottle and a sealing cap. In actual use, when a user inverts a large-capacity bottle, such as a 19L bottle, the hydrostatic pressure generated by the height of the water column increases with the length of the liquid column. The outlet of the existing sealing cap often uses thin walls to reduce costs. This structure is prone to deformation or even breakage when subjected to high water pressure, leading to problems such as seal failure and water overflow. This is especially true when bottled water is used with a water dispenser, which often results in an inverted state, at which point the outlet is under greater pressure.
[0003] Chinese patent (CN201559873U) provides a bottle cap for water containers that solves the problem of poor sealing in existing bottle caps by using an interference fit between a ring-shaped elastic inner plug and the bottle opening, along with a ring-shaped elastic buckle design and an elastic sealing cap. However, existing technology still lacks an effective solution for the thin walls of the water outlet, which are prone to cracking. Summary of the Invention
[0004] The purpose of this invention is to overcome the shortcomings of the prior art and provide an easily puncturable sealing cap for bottled water.
[0005] To achieve the above objectives, the technical solution provided by this utility model is as follows.
[0006] In a first aspect, a puncture-resistant sealing cap for bottled water includes a cap body with a water outlet at the top. The center of the water outlet is a circular plane, and the outer periphery is a transition surface with an inverted conical structure. An annular groove is provided on the circular plane located inside the cap body. The annular groove makes the top surface of the cap body thin-walled. Reinforcing ribs are distributed in a circumferential array around the outer periphery of the annular groove. Each pair of reinforcing ribs includes two reinforcing ribs. A straight groove is provided between adjacent pairs of reinforcing ribs. A compression block is provided at the corresponding position on the outer side of the cap body in the gap between the two reinforcing ribs. The reinforcing ribs extend to the inner side of the top surface of the cap body.
[0007] As a preferred technical solution, the annular groove is a C-shaped groove, and the reinforcing rib located on one side of the opening of the C-shaped groove is fixedly connected to the column structure surrounded by the C-shaped groove.
[0008] As a preferred technical solution, the extrusion block includes a guide slope extending along the generatrix direction of the transition surface, and a protrusion is provided between the guide slope and the circular plane, the height of the protrusion exceeding the plane where the guide slope is located.
[0009] As a preferred technical solution, a reinforcing plate is provided at the corresponding position on the outside of the cover in the gap between the two reinforcing ribs. The reinforcing plate is connected to the two reinforcing ribs of the reinforcing rib pair, and one side of the reinforcing plate is connected to the connection between the water outlet and the cover.
[0010] As a preferred technical solution, a sealing ring is provided on the lower surface of the top of the cover, and a convex ring is provided on the outer periphery of the end of the sealing ring away from the top of the cover. A sealing ring is provided on the top of the cover to fit the convex ring, and a gap is left between the convex ring and the sealing ring for interference fit with the barrel.
[0011] As a preferred technical solution, the cover body is also coaxially provided with an annular buckle.
[0012] As a preferred technical solution, the inner wall of the cover is provided with an arc-shaped groove, and a tear strip is provided on the lesser arc side of the cover located on the arc-shaped groove. The arc-shaped groove extends to the annular buckle, and the cover can be torn along the arc-shaped groove to form a disposable product.
[0013] As a preferred technical solution, a blocking piece is provided at one end of the arc-shaped groove near the tear strip, and the blocking piece prevents accidental contact with the tear strip.
[0014] As a preferred technical solution, 2-5 sets of reinforcing ribs are evenly distributed around the outer periphery of the annular groove.
[0015] Secondly, a water container for bottled water, having the easily puncturable sealing cap for bottled water as described in any one or more of the above-mentioned technical features.
[0016] The advantages and beneficial effects of this utility model are as follows: the structural strength of the water outlet is enhanced by the annular groove and the reinforcing ribs distributed in a circular array, which can effectively disperse the compressive stress of the water inside the bucket and prevent deformation or cracking of the water outlet; a straight groove is set between the reinforcing ribs evenly distributed on the outer periphery of the annular groove. The straight groove serves as a weak area of stress concentration, which cracks preferentially under the action of external force, guiding the crack to propagate along the path of the straight groove and the C-shaped groove, reducing or avoiding random cracking; when it is necessary to open the water outlet, the squeezing block is pressed from the outside of the cover, and a stable and controllable water outlet is finally formed, which solves the problem that traditional water outlets with simple thin walls in the circumferential direction are prone to cracking.
[0017] The combination of sealing rings, convex rings, and sealing rings, along with the interference seal of the barrel, can reduce the risk of leakage. At the same time, the tear-off tabs and blocking tabs are disposable, forming a single-use mechanism that improves safety and reduces the possibility of misoperation. Attached Figure Description
[0018] Figure 1 This is a three-dimensional structural schematic diagram of the present invention; Figure 2 This is a schematic diagram of the internal structure of this utility model; Figure 3 This is a cross-sectional structural schematic diagram of the present invention; Figure 4 This is an enlarged structural schematic diagram of the water outlet of this utility model; Figure label: 1-Cover, 2-Outlet, 3-Annular groove, 4-Reinforcing ribs, 5-Straight groove, 6-Extrusion block, 7-Guiding slope, 8-Protrusion, 9-Reinforcing piece, 10-Sealing ring, 11-Protruding ring, 12-Sealing ring, 13-Annular buckle, 14-Arc groove, 15-Tear-off piece, 16-Blocking piece. Detailed Implementation
[0019] To make the above-mentioned objectives, features, and advantages of this application more apparent and understandable, the specific embodiments of this application will be described in detail below with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are for illustrative purposes only and are not intended to limit the scope of this application. Furthermore, it should be noted that, for ease of description, only the parts relevant to this application are shown in the accompanying drawings, not the entire structure. Based on the embodiments in this application, all other embodiments obtained by those skilled in the art without inventive effort are within the scope of protection of this application.
[0020] The terms “comprising” and “having”, and any variations thereof, used in this application are intended to cover non-exclusive inclusion. For example, a process, method, system, product, or apparatus that includes a series of steps or units is not limited to the steps or units listed, but may optionally include steps or units not listed, or may optionally include other steps or units inherent to such process, method, product, or apparatus.
[0021] In this document, the term "embodiment" means that a particular feature, structure, or characteristic described in connection with an embodiment may be included in at least one embodiment of this application. The appearance of this phrase in various places throughout the specification does not necessarily refer to the same embodiment, nor is it a separate or alternative embodiment mutually exclusive with other embodiments. It will be explicitly or implicitly understood by those skilled in the art that the embodiments described herein can be combined with other embodiments.
[0022] Please see Figures 1-4This embodiment provides an easily puncturable sealing cap for bottled water, including a cap body 1 with a water outlet 2 at the top. The center of the water outlet 2 is a circular plane, and the outer periphery is a transition surface with an inverted conical structure. The circular plane on the inner side of the cap body 1 has an annular groove 3, which makes the top surface of the cap body a thin-walled structure. Several sets of reinforcing ribs 4 are distributed in a circular array on the outer periphery of the annular groove 3, and each set of reinforcing ribs 4 includes two reinforcing ribs. A straight groove 5 is provided between adjacent reinforcing ribs 4. A pressing block 6 is provided at the corresponding position on the outer side of the cap body 1 in the gap between two reinforcing ribs. The reinforcing ribs 4 extend to the inner side of the top surface of the cap body 1. The reinforcing ribs 4 enhance the mechanical strength around the water outlet 2, the straight groove 5 serves as a preset stress concentration area to guide crack propagation, and pressing the pressing block 6 can controllably crack the thin-walled area along the straight groove 5 and the annular groove 3, so as to achieve smooth opening.
[0023] It should be noted that the methods of pressing the squeezing block include, but are not limited to, manual pressing. For example, using a column or cylinder structure adapted to the water outlet to quickly impact the squeezing block. When using a water dispenser, the dispenser can be equipped with a connecting cylinder or similar structure to accommodate the squeezing block. When the water bottle is inverted, manually striking the bottom of the water bottle will activate the squeezing block via the connecting cylinder. In other words, "pressing the squeezing block" means creating relative movement or a tendency for relative movement between the squeezing block and the water bottle.
[0024] To optimize the structure of the annular groove 3 and guide the crack path, the technical solution provided in this embodiment includes: the annular groove 3 is a C-shaped groove; the reinforcing ribs 4 located on one side of the opening of the C-shaped groove are fixedly connected to the columnar structure surrounded by the C-shaped groove. The C-shaped groove and the reinforcing ribs 4 work together to guide the crack to propagate along the path of the C-shaped groove under pressure, avoiding irregular breakage. Specifically, when the extrusion block is pressed, the reinforcing rib connected to the opening of the C-shaped groove breaks integrally, and the straight grooves between multiple reinforcing rib pairs 4 also break, with the reinforcing ribs between the straight grooves opening in a petal-like manner. Compared with the existing technology that uses a simple planar structure for the water outlet, the water outlet of this utility model has higher mechanical strength and fewer unexpected breakages.
[0025] To facilitate user application of force to open the water outlet, the technical solution provided in this embodiment includes a compression block 6 comprising a guide slope 7 extending along the generatrix direction of the transition surface; a protrusion 8 is provided between the guide slope 7 and the circular plane, the height of the protrusion 8 exceeding the plane where the guide slope 7 is located. When the user presses the protrusion 8, the force is transmitted through the guide slope 7 to the thin-walled area between the reinforcing ribs 4, causing cracks to be triggered and propagated, achieving effortless and reliable opening.
[0026] To further enhance structural strength, the technical solution provided in this embodiment includes a reinforcing plate 9 positioned at the corresponding location on the outer side of the cover 1 in the gap between the two reinforcing ribs; the reinforcing plate 9 spans across the two reinforcing ribs of the reinforcing rib pair 4, with one side connected to the connection between the water outlet 2 and the cover 1. The reinforcing plate 9 disperses stress, preventing unexpected deformation of the structure when the extrusion block 6 is pressed, thus improving overall durability.
[0027] To achieve a reliable seal between the lid and the bucket opening, the technical solution provided in this embodiment includes: a sealing ring 10 extending downward from the lower surface of the top of the lid 1; a raised ring 11 on the outer periphery of the end of the sealing ring 10 away from the top of the lid; a sealing ring 12 fitted to the raised ring 11 on the top of the lid 1; and a gap between the raised ring 11 and the sealing ring 12. The sealing ring 10 is interference-fitted with the bucket opening, and the raised ring 11 and the sealing ring 12 together form a multi-stage sealing structure, effectively preventing leakage and improving sealing reliability.
[0028] To facilitate the installation and fixation of the lid and the barrel, the technical solution provided in this embodiment includes a ring-shaped buckle 13 coaxially provided on the inner side of the lid 1. The ring-shaped buckle 13 engages with the outer structure of the barrel opening, enabling quick installation and fixation and enhancing connection stability.
[0029] To achieve a single-use anti-counterfeiting structure, the technical solution provided in this embodiment includes: an arc-shaped groove 14 on the inner sidewall of the cover 1; a tear tab 15 extending from the lesser arc side of the arc-shaped groove 14 on the cover 1; the arc-shaped groove 14 extending to the annular buckle 13, allowing the cover 1 to be torn along the arc-shaped groove 14 to form a single-use structure. The user can pull the tear tab 15 to tear the cover along the arc-shaped groove 14, destroying the annular buckle 13 structure, achieving one-time opening and preventing reuse.
[0030] To prevent premature tearing due to misoperation, the technical solution provided in this embodiment includes a blocking piece 16 at one end of the arc-shaped groove 14 near the tear strip 15 to prevent accidental contact with the tear strip 15. The blocking piece 16 physically isolates the tear strip 15, reducing the risk of accidental opening during transportation or handling.
[0031] To optimize the layout of the reinforcing ribs and balance strength with controllable opening, the technical solution provided in this embodiment includes 2-5 sets of reinforcing ribs 4 evenly distributed around the outer periphery of the annular groove 3. The rationally distributed reinforcing ribs 4 enhance the structure while ensuring controllable stress concentration areas, achieving stable and reliable opening performance.
[0032] The working principle of this utility model is as follows: When the bottled water is inverted, the water pressure acts on the thin-walled area at the top of the lid 1, and the reinforcing ribs 4 effectively disperse the stress to prevent unexpected deformation or breakage; when the user opens the lid, he presses the protrusion 8 at the squeezing block 6 from the outside of the lid, and the external force is transmitted to the straight groove 5 and the annular groove 3 through the guiding inclined surface 7, guiding the crack to expand along the preset path, so as to achieve controllable and labor-saving opening; the sealing ring 10, the protruding ring 11 and the sealing ring 12 work together to ensure the sealing of the bottle mouth; if it is a one-time use scenario, the user can pull the tearing tab 15 to tear the lid along the arc groove 14, destroy the annular buckle 13, and achieve anti-counterfeiting opening.
[0033] The embodiments described above are merely illustrative of several implementations of this utility model, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the utility model patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these all fall within the protection scope of this utility model. Therefore, the protection scope of this utility model patent should be determined by the appended claims.
Claims
1. A puncture-resistant sealing cap for bottled water, comprising a cap body (1) with a water outlet (2) at the top, characterized in that: The outlet (2) has a circular plane at its center and an inverted conical transition surface on its outer periphery; the circular plane on the inner side of the cover (1) is provided with an annular groove (3), which makes the top surface of the cover form a thin-walled structure; the annular groove (3) has several sets of reinforcing ribs (4) arranged in a circular array on its outer periphery, each set of reinforcing ribs (4) including two reinforcing ribs; a straight groove (5) is provided between adjacent reinforcing ribs (4); the gap between the two reinforcing ribs is provided with a squeezing block (6) at the corresponding position on the outer side of the cover (1); the reinforcing ribs (4) extend to the inner side of the top surface of the cover (1).
2. The easily puncturable sealing cap for bottled water according to claim 1, characterized in that: The annular groove (3) is a C-shaped groove; the reinforcing ribs (4) located on one side of the opening of the C-shaped groove are fixedly connected to the column structure surrounded by the C-shaped groove.
3. The easily puncturable sealing cap for bottled water according to claim 1, characterized in that: The extrusion block (6) includes a guide slope (7) extending along the generatrix direction of the transition surface; a protrusion (8) is provided between the guide slope (7) and the circular plane, and the height of the protrusion (8) exceeds the plane where the guide slope (7) is located.
4. The easily puncturable sealing cap for bottled water according to claim 1, characterized in that: A reinforcing plate (9) is provided at the corresponding position on the outside of the cover (1) in the gap between the two reinforcing ribs; the reinforcing plate (9) spans the two reinforcing ribs of the reinforcing rib pair (4), and one side of it is connected to the connection between the water outlet (2) and the cover (1).
5. The easily puncturable sealing cap for bottled water according to claim 1, characterized in that: A sealing ring (10) extends downward from the lower surface of the top of the cover (1); a convex ring (11) is provided on the outer periphery of the end of the sealing ring (10) away from the top of the cover; a sealing ring (12) is provided on the top of the cover (1) to fit the convex ring (11); a gap is left between the convex ring (11) and the sealing ring (12).
6. The easily puncturable sealing cap for bottled water according to claim 1, characterized in that: The inner side of the cover (1) is also coaxially provided with a ring buckle (13).
7. The easily puncturable sealing cap for bottled water according to claim 6, characterized in that: The inner wall of the cover (1) is provided with an arc-shaped groove (14); the cover (1) is provided with a tear strip (15) extending on the lesser arc side of the arc-shaped groove (14); the arc-shaped groove (14) extends to the annular buckle (13), and the cover (1) is torn along the arc-shaped groove (14) to form a disposable structure.
8. The easily puncturable sealing cap for bottled water according to claim 7, characterized in that: The arc-shaped groove (14) has a blocking piece (16) at one end near the tear strip (15) to prevent accidental contact with the tear strip (15).
9. The easily puncturable sealing cap for bottled water according to claim 1, characterized in that: Two to five sets of reinforcing ribs (4) are evenly distributed around the outer periphery of the annular groove (3).
10. A water bucket for bottled water, characterized in that: Includes the easily puncturable sealing cap for bottled water as described in any one of claims 1-9.
Citation Information
Patent Citations
Barrelled water cover
CN201559873U