A novel seal cap
By designing a new type of sealing cap, the lower cap is sealed to the bottle mouth, and the stopper rod works with the upper cap to achieve liquid outflow and sealing, solving the problem of easy loss of bottle caps and realizing effective sealing and opening and closing control of the bottle mouth.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- TAICANG RUIJIE PACKAGING NEW MATERIALS CO LTD
- Filing Date
- 2025-07-01
- Publication Date
- 2026-06-26
AI Technical Summary
In existing technologies, bottle caps are easily lost after detaching from the bottle, rendering the liquid inside unusable.
A novel sealing cap has been designed, comprising a lower cap and an upper cap. The lower cap is sealed to the bottle mouth via a connecting ring, and the fluid channel is connected to the bottle mouth. The stopper rod is connected to the fluid channel and supported by a connecting piece. The cap expands outward, and the upper cap cooperates with the lower cap to achieve liquid outflow and sealing. The lower cap fits tightly with the bottle mouth with a ring to enhance the sealing performance.
It achieves effective sealing and opening/closing control of liquid at the bottle opening, prevents the bottle cap from coming off and being lost, ensures that the liquid can flow out smoothly and be sealed, and solves the problem of bottle caps being easily lost.
Smart Images

Figure CN224410140U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of bottle cap technology, specifically relating to a novel sealing cap. Background Technology
[0002] In existing technologies, ordinary bottle caps can be unscrewed and detached from the bottle body to pour out the liquid from the bottle opening. However, if the liquid in the bottle is not used up at once, the cap is easily lost when looking for it again. Summary of the Invention
[0003] In order to solve the technical problem that bottle caps are easily lost after being detached from the bottle in the prior art, this application proposes a new type of sealing cap, which solves the above-mentioned technical problem.
[0004] The technical solution adopted by this utility model to solve its technical problem is:
[0005] This utility model provides a novel sealing cap, comprising: a lower cap, the lower cap including a cover plate and a connecting ring, the connecting ring being sealed to the bottle mouth so that the cover plate covers the bottle mouth, the cover plate extending a fluid channel away from the bottle mouth, one end of the fluid channel communicating with the bottle mouth, the other end of the fluid channel being provided with a stopper rod, the outer wall of the stopper rod being connected to the inner wall of the fluid channel through multiple connecting pieces, the stopper rod forming an elongated section protruding from the fluid channel away from the bottle mouth, the section of the elongated section away from the bottle mouth forming a circumferentially expanding stopper cap; and an upper cap, the upper cap being sealed... The upper cover is connected to the lower cover, and the end of the upper cover away from the bottle mouth has a fluid outlet communicating with the fluid channel. The fluid outlet receives the elongated section of the stopper rod, and the upper cover forms a step at the fluid outlet that can be pressed against the inner end face of the stopper cap. When the upper cover moves toward the bottle mouth, the step of the upper cover moves away from the stopper cap so that the liquid in the bottle mouth can flow out along the fluid channel and the fluid outlet. When the upper cover moves away from the bottle mouth, the step presses against the stopper cap so that the upper cover is limited by the lower cover and at the same time closes the fluid outlet.
[0006] Furthermore, the lower cap extends into the bottle opening with a fitting ring, which fits tightly against the inner wall of the bottle opening.
[0007] Furthermore, a sleeve is formed inside the upper cover and fitted onto the outer wall of the fluid channel, and a sealing assembly is formed at the mating point.
[0008] Furthermore, the sealing assembly includes a first sealing ring formed on the outer wall surface of the fluid channel, the outer surface of the first sealing ring being in close contact with the inner wall surface of the sleeve.
[0009] Furthermore, the sealing assembly includes a second sealing ring formed on the inner wall surface of the sleeve, the inner surface of the second sealing ring being in close contact with the outer wall surface of the fluid channel.
[0010] Furthermore, during the movement of the upper cover, the second sealing ring is limited by the first sealing ring.
[0011] Furthermore, a mating ring is formed on the upper cover, and the mating ring is tightly engaged with the outer end face of the lower cover by threads.
[0012] Furthermore, a nozzle is formed at the end of the top cover away from the bottle opening, and the end of the nozzle away from the bottle opening forms the fluid outlet.
[0013] Furthermore, the outer end face of the top cover has a concave-convex structure that facilitates gripping.
[0014] Based on the above technical solution, the technical effects that this utility model can achieve are as follows:
[0015] This invention relates to a novel sealing cap. The lower cap is first sealed to the bottle opening via a connecting ring, preventing liquid from leaking out from the connection point. The lower cap is attached to the bottle opening in one piece. Then, the upper cap is sealed to the lower cap, preventing liquid from leaking out from the connection point. Thus, liquid can only flow out through the fluid channel of the lower cap and the fluid outlet of the upper cap. Simultaneously, the stopper rod engages with the step of the upper cap. Specifically, when the upper cap moves towards the bottle opening (i.e., moves closer to the lower cap), the step of the upper cap moves away from the stopper, allowing liquid to flow out through the fluid channel and outlet. When the upper cap moves away from the bottle opening (i.e., moves away from the lower cap), the step presses against the stopper, limiting the upper cap and preventing it from detaching from the upper cap, thus closing the fluid outlet. This design achieves both opening and closing of the water passage and solves the technical problem of bottle caps easily being lost after detaching from the bottle in existing technologies. Attached Figure Description
[0016] Figure 1 This is a schematic diagram of the overall structure of the new sealing cap;
[0017] Figure 2 This is a cross-sectional schematic diagram of the new sealing cap when the fluid outlet is opened.
[0018] Figure 3 This is a schematic cross-sectional view of the new sealing cap when the fluid outlet is closed.
[0019] Figure 4 A schematic diagram of the lower cover of the new sealing cap;
[0020] Figure 5 This is a schematic diagram of the top cover of the new sealing cap.
[0021] In this utility model: a-bottle mouth; 1-lower cover, 11-cover plate, 12-connecting ring, 13-fluid channel, 14-stopper rod, 141-connecting piece, 142-slender section, 143-stopper cap, 15-fitting ring, 16-first sealing ring; 2-upper cover, 21-fluid outlet, 22-step, 23-sleeve, 24-second sealing ring, 25-fitting ring, 26-protrusion, 27-concave-convex structure, 271-concave part, 272-convex part. Detailed Implementation
[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. The following description of at least one exemplary embodiment is merely illustrative and is in no way intended to limit the present utility model or its application or use. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the scope of protection of the present utility model.
[0023] like Figure 1-5 As shown, this utility model provides a novel sealing cap, including a lower cap 1 and an upper cap 2. The lower cap 1 includes a cover plate 11 and a connecting ring 12. The connecting ring 12 is sealed to the bottle opening a so that the cover plate 11 covers the bottle opening a. The cover plate 11 extends a fluid channel 13 away from the bottle opening a. One end of the fluid channel 13 is connected to the bottle opening a, and the other end of the fluid channel 13 is equipped with a stopper rod 14. The outer wall of the stopper rod 14 is connected to the inner wall of the fluid channel 13 through multiple connecting pieces 141. The gap between adjacent connecting pieces 141 forms a flow channel. The stopper rod 14 has an elongated section 142 that protrudes from the fluid channel 13 away from the bottle opening a. A stopper 143 with a circumferentially expanding shape is formed. The upper cover 2 is sealed to the lower cover 1. The end of the upper cover 2 away from the bottle mouth a has a fluid outlet 21 that communicates with the fluid channel 13. The fluid outlet 21 accommodates the elongated section 142 of the stopper rod 14. The upper cover 2 has a step 22 at the fluid outlet 21 that can be pressed against the inner end face of the stopper 143. When the upper cover 2 moves toward the bottle mouth a, the step 22 of the upper cover 2 moves away from the stopper 143 so that the liquid in the bottle mouth a can flow out along the fluid channel 13 and the fluid outlet 21. When the upper cover 2 moves away from the bottle mouth a, the step 22 is pressed against the stopper 143 so that the upper cover 2 is limited by the lower cover 1 and at the same time closes the fluid outlet 21.
[0024] In a preferred embodiment of this utility model, the lower cover 1 extends into the bottle opening a with a fastening ring 15. The fastening ring 15 fits tightly on the inner wall of the bottle opening a, thereby improving the sealing performance and preventing the liquid in the bottle opening a from flowing out from the connection between the lower cover 1 and the bottle opening a.
[0025] In a preferred embodiment of this invention, a sleeve 23 is formed inside the top cover 2 and fitted onto the outer wall of the fluid channel 13, with a sealing assembly formed at the mating point. In this way, the liquid in the bottle opening a can flow along the fluid channel 13 and the sleeve 23.
[0026] In a preferred embodiment of this invention, the sealing assembly includes a first sealing ring 16 formed on the outer wall of the fluid channel 13, the outer surface of the first sealing ring 16 being in close contact with the inner wall of the sleeve 23. There may be one or more first sealing rings 16.
[0027] Furthermore, the sealing assembly also includes a second sealing ring 24 formed on the inner wall surface of the sleeve 23, the inner surface of the second sealing ring 24 being in close contact with the outer wall surface of the fluid channel 13.
[0028] Furthermore, during the movement of the upper cover 2, the second sealing ring 24 is limited by the first sealing ring 16, thereby preventing the upper cover 2 from detaching from the lower cover 1.
[0029] In a preferred embodiment of the present invention, a mating ring 25 is formed on the upper cover 2, and the mating ring 25 is tightly engaged with the outer end face of the lower cover 1 by threads. Specifically, the inner ring of the mating ring 25 is screwed to the outer ring of the connecting ring 12.
[0030] In a preferred embodiment of the present invention, a nozzle 26 is formed at the end of the top cover 2 away from the bottle opening a, and a fluid outlet 21 is formed at the end of the nozzle 26 away from the bottle opening a.
[0031] In a preferred embodiment of the present invention, a concave-convex structure 27 for easy gripping is formed on the outer end surface of the top cover 2, including a plurality of spaced-apart recesses 271 and protrusions 272.
[0032] It should be understood that the specific embodiments described above are only for explaining the present invention and are not intended to limit the present invention. Obvious variations or modifications derived from the spirit of the present invention are still within the protection scope of the present invention.
Claims
1. A novel sealing cap, characterized in that, include: The lower cover (1) includes a cover plate (11) and a connecting ring (12). The connecting ring (12) is sealed to the bottle mouth (a) so that the cover plate (11) covers the bottle mouth (a). The cover plate (11) extends outward from the bottle mouth (a) to form a fluid channel (13). One end of the fluid channel (13) is connected to the bottle mouth (a). The other end of the fluid channel (13) is provided with a stopper rod (14). The outer wall of the stopper rod (14) is connected to the inner wall of the fluid channel (13) through multiple connecting pieces (141). The stopper rod (14) forms an elongated section (142) that protrudes outward from the fluid channel (13) away from the bottle mouth (a). The elongated section (142) away from the bottle mouth (a) forms a circumferentially expanding stopper cap (143). The upper cover (2) is sealed to the lower cover (1). The upper cover (2) has a fluid outlet (21) at its end away from the bottle opening (a) that communicates with the fluid channel (13). The fluid outlet (21) accommodates an elongated section (142) of the stopper rod (14). The upper cover (2) also has a step (22) at the fluid outlet (21) that can be pressed against the inner end face of the stopper cap (143). When the cap (2) moves toward the bottle mouth (a), the step (22) of the upper cap (2) moves away from the stopper (143) so that the liquid in the bottle mouth (a) can flow out along the fluid channel (13) and the fluid outlet (21). When the upper cap (2) moves away from the bottle mouth (a), the step (22) presses against the stopper (143) so that the upper cap (2) is limited by the lower cap (1) and at the same time closes the fluid outlet (21).
2. The novel sealing cap according to claim 1, characterized in that, The lower cover (1) extends into the bottle mouth (a) with a fitting ring (15) that fits tightly against the inner wall of the bottle mouth (a).
3. The novel sealing cap according to claim 1, characterized in that, The upper cover (2) has a sleeve (23) fitted onto the outer wall of the fluid channel (13), and a sealing assembly is formed at the mating point.
4. The novel sealing cap according to claim 3, characterized in that, The sealing assembly includes a first sealing ring (16) formed on the outer wall of the fluid channel (13), the outer surface of the first sealing ring (16) being in close contact with the inner wall of the sleeve (23).
5. The novel sealing cap according to claim 4, characterized in that, The sealing assembly includes a second sealing ring (24) formed on the inner wall surface of the sleeve (23), the inner surface of the second sealing ring (24) being in close contact with the outer wall surface of the fluid channel (13).
6. The novel sealing cap according to claim 5, characterized in that, During the movement of the upper cover (2), the second sealing ring (24) is limited by the first sealing ring (16).
7. The novel sealing cap according to claim 1, characterized in that, A mating ring (25) is formed on the upper cover (2), and the mating ring (25) is tightly fitted with the outer end face of the lower cover (1) by threads.
8. The novel sealing cap according to claim 1, characterized in that, The top cover (2) has a protrusion (26) at the end away from the bottle mouth (a), and the end of the protrusion (26) away from the bottle mouth (a) forms the fluid outlet (21).
9. The novel sealing cap according to claim 1, characterized in that, The outer end face of the top cover (2) has a concave-convex structure (27) that facilitates gripping.