A secondary pollution prevention bottled water sealing bottle cap
Patent Information
- Application Number
- CN202522377728.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-11-10
- Publication Date
- 2026-10-27
- Estimated Expiration
- 2035-11-10
AI Technical Summary
[0006]针对现有技术中，瓶装水密封瓶盖存在的开启后饮用口易受外界环境污染，且盖体与瓶身连接处密封不严导致瓶内水存在二次污染风险的问题，本实用新型旨在提供一种结构经过改良的、能够有效解决上述问题的防二次污染的瓶装水密封瓶盖
[0018]1、本实用新型，通过在盖体顶部设置集成了防尘盖、可翻转开盖、密封条及锁紧结构的防尘机构，解决了现有瓶盖开启后饮用口直接暴露，易被手部及环境灰尘污染的问题，达到了隔离并密封饮用口、防止饮用时二次污染的技术效果，显著提升了饮水过程的卫生安全性。
Smart Images
Figure CN224899562U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of bottle cap technology, and in particular to a bottle cap for preventing secondary pollution of bottled water. Background Technology
[0002] Bottled water has become a common beverage in daily life due to its convenience and hygienic carrying. Traditional bottled water is usually sealed with a disposable screw cap, which effectively ensures the cleanliness and safety of the water inside the bottle before the first opening, preventing contamination during transportation and sales.
[0003] However, once consumers open the bottle cap for the first time, they often cannot finish the entire bottle of water in one go. During subsequent repeated opening and closing, the shortcomings of the existing bottle cap design become apparent. Each time the bottle cap is opened to drink, the bottle opening comes into direct contact with the external environment. Bacteria from hands, dust from the air, and the surface where the bottle cap is placed can all become sources of contamination, directly contaminating the area of the bottle opening that comes into contact with the drinker's mouth.
[0004] When the cap is screwed back on, this simple threaded structure, while preventing liquid spillage, is no longer as effective at sealing. The gap between the cap and the bottle's threads provides a potential entry point for external dust and microorganisms. Especially during transport, the shaking of the bottle and changes in the environment make it easier for these contaminants to enter the bottle through the gaps, causing "secondary contamination" of the remaining water and posing a potential health risk to the drinker.
[0005] Therefore, this utility model proposes a bottle cap for preventing secondary pollution of bottled water to overcome the shortcomings of the prior art. Utility Model Content
[0006] In view of the problems in the existing technology of bottled water sealing caps, such as the drinking opening being easily contaminated by the external environment after opening, and the risk of secondary contamination of the water inside the bottle due to the poor sealing at the connection between the cap and the bottle body, this utility model aims to provide a bottled water sealing cap with an improved structure that can effectively solve the above problems and prevent secondary contamination.
[0007] This utility model provides a bottle cap for preventing secondary pollution of bottled water, comprising: a cap body; and a dustproof mechanism disposed on the top of the cap body and a sealing component disposed on the outer wall of the bottom of the cap body.
[0008] The dustproof mechanism includes a dustproof cover fixed to the top of the cover body, with an opening and a groove on the dustproof cover; the cover is rotatably connected to the top of the dustproof cover by an integrally formed flexible hinge, which is used to selectively cover the opening; a sealing strip is fixed to the bottom of the cover, and a locking block is fixed to its edge; a locking block is fixed inside the groove; and a protrusion is also fixed on the cover.
[0009] Furthermore, when the cap is opened and closed, the sealing strip at the bottom seals against the edge of the opening, while the locking block at the edge engages with the locking block in the groove on the dust cover to achieve a tight seal; the sealing assembly includes an annular groove on the outer wall of the bottom of the cap, a retaining ring is fixedly connected inside the annular groove, and a sealing ring is fixedly connected to the outer wall of the retaining ring. The sealing ring is used to seal the connection between the cap and the bottle body when the cap is tightened to the bottle opening.
[0010] Preferably, the locking block in the dustproof mechanism is an elastic hook that extends downward from the edge of the cover, while the locking block is a locking edge that is fixed to the inner wall of the groove and adapted to the elastic hook. This structure allows the locking block to pass over and lock the locking block through its own elastic deformation when closed, thus achieving a stable and reliable self-locking function. At the same time, it can be easily separated by applying appropriate external force when opened.
[0011] Preferably, to improve user convenience, especially when holding the bottle with one hand, the protrusion is located on the edge away from the rotating connection of the cap. This layout conforms to the lever principle, allowing the cap to be pried open with less force. In addition, the surface of the protrusion is also processed with anti-slip texture, increasing the friction between the fingers and the protrusion and preventing slippage during operation.
[0012] Preferably, in order to ensure the airtightness and liquid tightness of the drinking spout when closed, the sealing strip is a ring-shaped elastic silicone ring made of food-grade material. The sealing strip is not simply pasted on, but is embedded and fixed in a sealing groove opened at the bottom of the lid, and its outline corresponds to the outline of the opening. This design can prevent the sealing strip from shifting during use and ensure the sealing effect for long-term use.
[0013] Preferably, the sealing ring in the sealing assembly has a specially designed annular elastic lip that faces the bottom of the cap and slopes outward. When the cap is screwed on, this elastic lip is pressed tightly against the upper end of the outer wall of the bottle mouth by the pressure from the bottle mouth, forming a piston-ring-like sealing structure. Its sealing performance is superior to simple planar contact, and it can more effectively compensate for manufacturing tolerances and block contaminants.
[0014] Preferably, in order to ensure the overall stability of the sealing assembly and prevent the sealing ring from loosening when the cover is repeatedly turned, the retaining ring and the annular groove on the cover are fixedly connected by an interference fit. This firm connection ensures that the sealing ring is in the correct working position at all times.
[0015] Preferably, for aesthetic purposes and ease of daily maintenance and cleaning, the top surface of the cap and the top surface of the dust cover are designed to form a smooth transition when the cap is closed. This smooth design avoids creating a depression at the top of the cap, thus preventing the accumulation of dust and dirt, which can be easily cleaned with a cloth.
[0016] Preferably, in order to make the bottle cap of this utility model suitable for standard bottled water bottles, the inner wall of the cap is integrally formed with an internal thread for engaging with the bottle mouth thread, so that it can be easily installed and removed by rotation.
[0017] This utility model has the following beneficial effects:
[0018] 1. This utility model solves the problem that the drinking spout is directly exposed after the existing bottle cap is opened, and is easily contaminated by hand and environmental dust, by setting a dustproof mechanism that integrates a dustproof cover, a flip-open cap, a sealing strip and a locking structure on the top of the cap. It achieves the technical effect of isolating and sealing the drinking spout and preventing secondary contamination during drinking, and significantly improves the hygiene and safety of the drinking process.
[0019] 2. This utility model solves the problem of gaps at the threaded connection between the bottle cap and the bottle body, which easily leads to the intrusion of external dust and bacteria into the bottle body, by adding a sealing component consisting of a sealing ring, a retaining ring, and an annular groove to the outer wall of the bottom of the cap. This achieves a reliable sealing effect at the joint between the bottle cap and the bottle body, thereby effectively preventing secondary contamination of the water inside the bottle during storage after opening.
[0020] 3. This utility model combines the dustproof mechanism at the top with the sealing component at the bottom to form a double anti-pollution protection. The overall structure is ingeniously designed, compact and reasonable. At the same time, by setting up easy-to-operate protrusions and reliable locking and locking structures, it solves the problems of complex structure, unreliable sealing or inconvenience of use that may exist in some existing anti-pollution solutions, and achieves a comprehensive technical effect of reliable sealing, convenient use and comprehensive protection. Attached Figure Description
[0021] Figure 1 This is a three-dimensional schematic diagram of a bottle cap for preventing secondary pollution of bottled water proposed in this utility model.
[0022] Figure 2 This is a schematic diagram of the structure of a dust cover for a bottled water sealing cap that prevents secondary pollution, as proposed in this utility model.
[0023] Figure 3 for Figure 2 Enlarged view of point A in the middle;
[0024] Figure 4 for Figure 2 Enlarged view of point B in the middle.
[0025] Legend:
[0026] 1. Cover;
[0027] 2. Dustproof mechanism; 21. Dustproof cover; 22. Opening mechanism; 23. Protrusion; 24. Sealing strip; 25. Opening; 26. Locking block; 27. Clamping block; 28. Groove;
[0028] 3. Sealing assembly; 31. Sealing ring; 32. Snap ring; 33. Annular groove. Detailed Implementation
[0029] Example:
[0030] Reference Figures 1 to 4 This utility model provides a bottle cap for preventing secondary pollution of bottled water, which aims to solve the problem that the drinking opening of existing bottled water caps is easily contaminated by the outside world after opening, and that the connection between the cap and the bottle body is not sealed tightly, resulting in secondary pollution.
[0031] like Figures 1 to 4 As shown, the bottled water sealing cap for preventing secondary pollution includes a cap body 1, which serves as a load-bearing base. A dustproof mechanism 2 is provided on the top of the cap body 1, and a sealing component 3 is provided on the bottom outer wall of the cap body 1. The dustproof mechanism 2 is used to prevent hand contact and environmental dust from contaminating the drinking spout. The sealing component 3 is used to seal the gap at the connection between the cap body 1 and the bottle body to prevent external pollutants from entering the bottle body.
[0032] Specifically, the dustproof mechanism 2 includes a dustproof cover 21 fixed to the top of the cover body 1. The dustproof cover 21 has an opening 25 for liquid to flow out and a groove 28 for locking. The cover 22 is rotatably connected to the top of the dustproof cover 21 by an integrally formed flexible hinge, which is used to selectively cover the opening 25. A sealing strip 24 is fixed to the bottom of the cover 22. When the cover 22 is closed, the sealing strip 24 can form a tight seal with the edge of the opening 25. A locking block 26 is also fixed to the edge of the cover 22. A locking block 27 is fixed inside the groove 28. When the cover 22 is closed, the locking block 26 and the locking block 27 engage with each other to achieve a firm lock and prevent accidental opening. A protrusion 23 is also fixed on the cover 22. The protrusion 23 is used to provide a force point to facilitate the user to pry open the cover 22.
[0033] The sealing assembly 3 includes an annular groove 33 formed on the outer wall of the bottom of the cap 1. A retaining ring 32 is fixedly connected inside the annular groove 33, and a sealing ring 31 is fixedly connected to the outer wall of the retaining ring 32. When the cap 1 is tightened to the bottle mouth, the sealing ring 31 is used to circumferentially seal the connection between the cap and the bottle body.
[0034] Reference Figure 3 and Figure 4 and combined Figure 1 and Figure 2In the dustproof mechanism 2, the locking block 26 on the cover 22 is specifically an elastic hook that extends integrally downward from the edge of the cover 22. At the same time, a corresponding groove 28 is opened on the dustproof cover 21, and a locking block 27 is fixed inside the groove 28. The locking block 27 is specifically a locking edge that is fixed to the inner wall of the groove 28 and adapted to the elastic hook. In the assembled and used state, when the cover 22 is pressed closed, the locking block 26 on it will pass over the locking block 27 due to its own elastic deformation, and then spring back and lock into the bottom of the locking block 27, forming a stable locking state. This locking structure formed by the locking block 26 and the locking block 27 not only applies additional sealing pressure to the sealing strip 24, greatly enhancing the sealing performance at the opening 25, but also effectively prevents the cover 22 from opening due to accidental vibration or contact when not in use, ensuring the cleanliness of the drinking spout.
[0035] In the sealing assembly 3, the sealing ring 31 is fixedly connected to the annular groove 33 at the bottom of the cap 1 by a retaining ring 32. The retaining ring 32 and the annular groove 33 can be fixedly connected by an interference fit, which ensures the installation stability of the sealing ring 31. The sealing ring 31 itself has an annular elastic lip that faces the bottom of the cap 1 and is inclined outward. The function of the annular elastic lip is that when the cap 1 is tightened on the bottle mouth, it can fit tightly against and seal the upper end of the outer side wall of the bottle mouth with its elasticity, thereby forming a reliable physical barrier to prevent external contaminants from entering the bottle body through the thread gap. The inner wall of the cap 1 is integrally formed with an internal thread for engaging with the bottle mouth thread. The entire cap can be detachably installed on the bottle mouth of bottled water through the internal thread.
[0036] As a preferred embodiment, in order to achieve reliable engagement and disengagement, the locking block 26 is specifically an elastic hook that extends integrally downward from the edge of the cover 22, and the locking block 27 is a locking edge that is fixed to the inner wall of the groove 28 and adapted to the elastic hook.
[0037] As another preferred embodiment, in order to facilitate one-handed operation by the user, the protrusion 23 is located at the edge of the cover 22 away from its rotating connection, and the surface of the protrusion 23 is processed with an anti-slip texture.
[0038] As another preferred embodiment, in order to further improve the sealing effect at the opening 25, the sealing strip 24 is an annular elastic silicone ring, and is embedded and fixed in a sealing groove opened at the bottom of the cover 22, the outline of which corresponds to the outline of the opening 25.
[0039] As another preferred embodiment, in order to enhance the sealing reliability at the connection between the cap 1 and the bottle body, the cross section of the sealing ring 31 has an annular elastic lip that faces the bottom of the cap 1 and is inclined outward, and the structure is used to fit tightly against the upper end of the outer side wall of the bottle mouth when the cap 1 is tightened.
[0040] As another preferred embodiment, in order to ensure that the sealing component 3 is installed securely, the retaining ring 32 and the annular groove 33 are fixedly connected by an interference fit;
[0041] As another preferred embodiment, in order to facilitate daily cleaning and prevent dirt accumulation, when the cap 22 is closed, its top surface forms a smooth transition curve with the top surface of the dust cover 21, so that the top of the cap has no obvious steps.
[0042] As one embodiment for detachable installation, the inner wall of the cap 1 is integrally formed with an internal thread for engaging with the bottle neck thread.
[0043] The working principle is as follows:
[0044] When the user needs to drink the water from the bottle, they can use their finger to flick the protrusion 23 on the opening 22. The applied force causes the locking block 26, which acts as an elastic hook, to deform elastically and disengage from the locking block 27 fixed inside the groove 28, thus releasing the locking state. With continued force, the opening 22 will flip upward around the integrally formed flexible hinge that is rotatably connected to the dust cover 21, thereby fully exposing the opening 25 for drinking. After drinking, the user can press down on the opening 22. Under the guidance of the locking block 26, it will contact the locking block 27 again and, due to elastic deformation, will pass over the locking block 27. Then, it will quickly spring back and lock firmly, thus locking the opening 22 again. In the closed and locked state of the opening 22, the sealing strip 24 at the bottom is tightly pressed against the edge of the opening 25, forming the first effective seal and preventing contamination of the drinking mouth by hands and dust in the environment.
[0045] When the entire cap 1 is installed onto the bottle neck, the internal thread on the inner wall of the cap 1 engages with the external thread of the bottle neck and tightens. During the tightening process, the sealing component 3 located at the bottom of the cap 1 begins to function. The sealing ring 31, which is fixed to the outer wall of the retaining ring 32, contacts the bottle neck. Its annular elastic lip, which faces the bottom of the cap 1 and tilts outward, undergoes elastic deformation due to pressure and fits tightly against the upper end of the outer wall of the bottle neck, forming a second reliable circumferential seal. The sealing structure effectively seals the tiny gaps that may exist at the threaded connection between the cap 1 and the bottle body, thereby preventing external dust and bacteria from entering the bottle during storage or transport, ensuring that the water inside the bottle remains clean after opening.
Claims
1. A bottle cap for preventing secondary contamination of bottled water, comprising a cap body (1); characterized in that, A dustproof mechanism (2) is provided on the top of the cover (1), and a sealing assembly (3) is provided on the bottom outer wall of the cover (1); the dustproof mechanism (2) includes a dustproof cover (21) fixed on the top of the cover (1), and the dustproof cover (21) has an opening (25) and a groove (28); the cover (22) is rotatably connected to the top of the dustproof cover (21) by an integrally formed flexible hinge, and is used to selectively cover the opening (25); a sealing strip (24) is fixed at the bottom of the cover (22), and is used to seal and fit with the edge of the opening (25) when the cover (22) is closed. The edge of the opening cap (22) is also fixed with a locking block (26), and the inside of the groove (28) is fixed with a locking block (27). The locking block (26) and the locking block (27) are used to engage with each other when the opening cap (22) is closed to achieve locking. The opening cap (22) is also fixed with a protrusion (23) for pushing open. The sealing assembly (3) includes an annular groove (33) formed on the bottom outer wall of the cap body (1). The inside of the annular groove (33) is fixedly connected with a retaining ring (32), and the outer wall of the retaining ring (32) is fixedly connected with a sealing ring (31) for sealing the connection between the bottle cap and the bottle body.
2. The bottle cap for preventing secondary contamination of bottled water according to claim 1, characterized in that, The locking block (26) is an elastic hook that extends integrally downward from the edge of the cover (22). The locking block (27) is a locking edge that is fixed to the inner wall of the groove (28) and adapted to the elastic hook. The locking block (26) engages and disengages with the locking block (27) through elastic deformation.
3. The bottle cap for preventing secondary contamination of bottled water according to claim 1, characterized in that, The protrusion (23) is located at the edge of the cover (22) away from its rotating connection, and the surface of the protrusion (23) is processed with anti-slip texture to facilitate the user to open the cover (22) with one hand.
4. The bottle cap for preventing secondary contamination of bottled water according to claim 1, characterized in that, The sealing strip (24) is an annular elastic silicone ring and is embedded in a sealing groove fixed at the bottom of the cover (22) and whose outline corresponds to the outline of the opening (25).
5. The bottle cap for preventing secondary contamination of bottled water according to claim 1, characterized in that, The sealing ring (31) has a cross section with an annular elastic lip that faces the bottom of the cap (1) and is inclined outward. The annular elastic lip is used to tightly fit and seal the upper end of the outer wall of the bottle mouth when the cap (1) is tightened to the bottle mouth.
6. The bottle cap for preventing secondary contamination of bottled water according to claim 1, characterized in that, The retaining ring (32) and the annular groove (33) are fixedly connected by an interference fit to ensure that the sealing ring (31) is securely installed on the cover (1).
7. The bottle cap for preventing secondary contamination of bottled water according to claim 1, characterized in that, When the cap (22) is closed, its top surface forms a smooth transition with the top surface of the dust cover (21), so that the top of the cap has no obvious steps, making it easy to clean and less prone to accumulating dirt.
8. The bottle cap for preventing secondary contamination of bottled water according to claim 1, characterized in that, The inner wall of the cap (1) is integrally formed with an internal thread for engaging with the bottle mouth thread, for detachably installing the cap onto the bottle mouth of the bottled water.