Rotary opening bottle cap and bottle
By using a rotary bottle cap assembly, the lifting and lowering movement of the drinking spout cap is controlled by rotating the outer bottle cap, which solves the problem of cumbersome opening structures in existing liquid packaging bottles, achieving quick opening and closing, good sealing, and easy portability.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- 麦俊熙
- Filing Date
- 2025-03-05
- Publication Date
- 2026-05-22
AI Technical Summary
The opening structure of existing liquid packaging bottles is cumbersome or irreversible, affecting ease of use and sealing.
It adopts a rotary opening bottle cap assembly, including an outer bottle cap, an inner bottle cap, and a drinking spout cap. The rotation of the outer bottle cap controls the lifting and lowering movement of the drinking spout cap, and combined with elastic materials, it achieves quick opening, closing, and sealing.
It enables quick opening and closing of the bottle cap, improving ease of use and ensuring the container's airtightness, making it easy to carry.
Smart Images

Figure CN224266218U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the technical field of liquid packaging containers, and particularly to a rotary-opening bottle cap and bottle. Background Technology
[0002] Currently, most liquid packaging bottles on the market have a screw-on cap rotation structure. This type of packaging is cumbersome and inconvenient to use, requiring repeated rotation to open or close the cap. Alternatively, there are destructible structures, such as aluminum cans. Once this type of packaging is damaged, it cannot be restored, and the liquid cannot be preserved for a long time after being exposed to air, making it difficult to carry. Utility Model Content
[0003] To address the aforementioned problems, the present invention provides a rotary bottle cap assembly, comprising an outer bottle cap, an inner bottle cap, and a spout cap. The outer bottle cap features a spiral guide groove on its inner side with a spiral angle of 15°-45°; an inclined, protruding leak-proof ring made of elastic material on its inner side; an opening and a sealing cap that can be pressed to seal the opening on the inner bottle cap; an annular opening at the bottom of the inner bottle cap with an inner diameter of the opening and a length not less than the shortest axial distance from the top of the outer bottle cap to the spiral guide groove; a spout cap with an outer diameter equal to the inner diameter of the annular opening and a length equal to the length of the guide groove on the side of the bottle opening; and a sliding strip on the side of the spout cap corresponding to the spiral guide groove in the outer bottle cap. The sliding strip is used to simultaneously engage with the spiral guide groove of the outer bottle cap and the strip guide groove of the bottle opening. Rotation of the outer bottle cap forces the sliding strip to move axially along the strip guide groove, thereby causing the spout cap to move axially up and down. According to the previously described rotary-opening bottle cap assembly, the outer bottle cap has a drinking opening at its top with a diameter larger than the distance from the maximum outer diameter of the drinking spout to the center. According to the previously described rotary-opening bottle cap assembly, the inner bottle cap has a protrusion made of elastic material that matches the size of the opening, achieving a seal through compression deformation. A bottle includes a bottle body and a bottle mouth, characterized in that it further includes the rotary-opening bottle cap assembly described in any one of the previous descriptions; the bottle mouth has a strip-shaped guide groove corresponding to the drinking spout cap slide; the strip-shaped guide groove at the bottle mouth is an axial straight groove; the side of the bottle mouth has a protruding edge that fits against the inner edge of the inner bottle cap and an annular groove that matches the leak-proof ring inside the outer bottle cap.
[0004] The advantages of this utility model compared with the prior art are: This utility model adopts the design of an inner bottle cap, an outer bottle cap and a drinking spout cap, and controls the opening or closing of the bottle cap by rotating the outer bottle cap to control the up and down sliding of the drinking spout cap. This makes the bottle open and close two seconds faster than the conventional screw lifting and closing method, while ensuring the sealing of the container, making it convenient to use and carry when going out. Attached Figure Description
[0005] Figure 1This is a schematic diagram of the overall structure of this utility model;
[0006] Figure 2 This is a cross-sectional view of the outer bottle cap;
[0007] Figure 3 This is a schematic diagram of the inner bottle cap;
[0008] Figure 4 for Figure 3 A bottom view;
[0009] Figure 5 This is a schematic diagram of the drinking spout cap;
[0010] Figure 6 This is a diagram of the bottle opening and the bottle itself.
[0011] Figure 7 This is a side perspective view of the bottle with the cap closed.
[0012] Figure 8 This is a side perspective view of the bottle with the cap open. Detailed Implementation
[0013] The specific embodiments of this utility model will be further described below with reference to the accompanying drawings.
[0014] like Figures 1-8 As shown, a rotary bottle cap assembly includes an outer bottle cap, an inner bottle cap, and a drinking spout cap. The outer bottle cap has a spiral guide groove on its inner side with a spiral angle of 15°-45°. The outer bottle cap also has a leak-proof ring made of an inclined, protruding elastic material on its inner side. The inner bottle cap has an opening and a sealing cap that can be pressed to seal the opening. The bottom of the inner bottle cap has an annular opening with an inner diameter of the opening and a length not less than the shortest axial distance from the top of the outer bottle cap to the spiral guide groove. The top of the drinking spout cap has a drinking spout with an outer diameter equal to the inner diameter of the annular opening and a length equal to the length of the guide groove on the side of the bottle mouth. The side of the drinking spout cap has a slider corresponding to the spiral guide groove in the outer bottle cap. The slider is used to simultaneously engage with the spiral guide groove of the outer bottle cap and the strip guide groove of the bottle mouth. Rotation of the outer bottle cap forces the slider to move axially along the strip guide groove, thereby causing the drinking spout cap to move axially up and down. According to the previously described rotary-opening bottle cap assembly, the outer bottle cap has a drinking opening at its top with a diameter larger than the distance from the maximum outer diameter of the drinking spout to the center. According to the previously described rotary-opening bottle cap assembly, the inner bottle cap has a protrusion made of elastic material that matches the size of the opening, achieving a seal through compression deformation. A bottle includes a bottle body and a bottle mouth, characterized in that it further includes the rotary-opening bottle cap assembly described in any one of the previous descriptions; the bottle mouth has a strip-shaped guide groove corresponding to the drinking spout cap slide; the strip-shaped guide groove at the bottle mouth is an axial straight groove; the side of the bottle mouth has a protruding edge that fits against the inner edge of the inner bottle cap and an annular groove that matches the leak-proof ring inside the outer bottle cap.
[0015] When installing this utility model, first align the slider (16) of the spout cap (3) with the strip guide groove (17) of the bottle mouth and insert it so that it is stuck inside the bottle mouth; align the annular opening (12) at the bottom of the inner bottle cap with the spout opening (15) of the spout cap, and at the same time, press the inner edge (14) of the inner bottle cap tightly against the protruding edge (18) of the bottle mouth so that the annular opening (12) of the inner bottle cap completely covers the spout opening (15) of the spout cap, and then put on the sealing cap (10) on the inner bottle cap to complete the installation of the inner bottle cap; then align the guide groove (6) of the outer bottle cap with the slider (16) of the spout cap and press it vertically downward so that the leak-proof ring (7) of the outer bottle cap is stuck in the annular groove (19) of the bottle mouth and the slider (16) of the spout cap is positioned on the guide groove (6) of the outer bottle cap to complete the installation of the outer bottle cap. At this time, the container is completely sealed.
[0016] Reference Figure 7 As shown, in the initial state, the spout cap (3) is placed at the bottom of the strip guide groove (17) at the bottle mouth, and the sealing cap (10) of the inner bottle cap (2) is closed at the opening (9), and the container is in a closed state;
[0017] Reference Figure 8 As shown, rotating the outer bottle cap (1) causes its internal guide groove (6) to drive the slider (16) of the drinking spout cap to slide in the strip guide groove (17), thereby causing the drinking spout cap (3) to slide up and down. When the slider (16) is placed at the top of the strip guide groove (17), the drinking spout (15) of the drinking spout cap (3) pushes open the sealing cap (10) of the inner bottle cap (2). Rotating the outer bottle cap (1) to the maximum extent, at this time the slider (16) is in the horizontal part of the end of the guide groove (6) inside the outer bottle cap, thereby fixing the drinking spout cap and the container is in the open state.
[0018] The above embodiments are merely illustrative of the technical features of this utility model and are not intended to limit this utility model, nor can they limit the scope of protection of this utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the main technical solution of this utility model should be covered within the scope of protection of this utility model.
Claims
1. A rotary-opening bottle cap assembly, comprising an outer cap, an inner cap, and a drinking spout cap; characterized in that, The outer bottle cap has a spiral guide groove on its inner side with a spiral angle of 15°-45°; the outer bottle cap has a leak-proof ring made of inclined, raised elastic material on its inner side; the inner bottle cap has an opening and a sealing cap that can be pressed to seal the opening; the bottom of the inner bottle cap has an annular opening with the opening as its inner diameter and a length not less than the shortest axial distance from the top of the outer bottle cap to the spiral guide groove; the top of the drinking spout cap has a drinking spout with an outer diameter equal to the inner diameter of the annular opening and a length equal to the length of the guide groove on the side of the bottle mouth; the side of the drinking spout cap has a slider corresponding to the spiral guide groove inside the outer bottle cap; the slider is used to simultaneously embed into the spiral guide groove of the outer bottle cap and the strip guide groove of the bottle mouth, and the rotation of the outer bottle cap forces the slider to move axially along the strip guide groove, thereby causing the drinking spout cap to move axially up and down.
2. The rotary-opening bottle cap assembly according to claim 1, characterized in that, The top of the outer bottle cap has a drinking opening with a diameter greater than the distance from the maximum outer diameter of the drinking spout to the center.
3. The rotary-opening bottle cap assembly according to claim 1, characterized in that, The inner cap has protrusions made of elastic material that match the size of the opening, which achieve a seal through compression and deformation.
4. A bottle, comprising a bottle body and a bottle mouth, characterized in that, It also includes a rotary opening bottle cap assembly as described in any one of claims 1 to 3; the bottle mouth is provided with a strip guide groove corresponding to the drinking spout slide; the strip guide groove of the bottle mouth is an axial straight groove; the side of the bottle mouth has a protruding edge that fits against the inner edge of the inner bottle cap and an annular groove that matches the leak-proof ring inside the outer bottle cap.