Storage type bottle cap

Abstract

The storage type bottle cap comprises a cap body, a material bottle, a pipe cap and a sleeve pulling cap, the cap body is integrally provided with an inner cylinder and a cap table part, the top wall of the inner cylinder is provided with an annular inserting part, a sleeve is fixedly arranged in the cap table part, a water outlet hole is formed between the sleeve and the cap table part, the material bottle is integrally provided with a cavity part and a pipe part, and the material bottle is movably inserted into the inner cylinder; the bottom end of the cavity part is provided with a through hole, the top wall of the cavity part is provided with an annular opening part, and the top end of the pipe part is provided with a feeding port. The bottle cap has an initial state and an open state, in the initial state, the annular opening part and the annular inserting part are tightly buckled, and a sealed storage space is formed by the cavity part, the cap body and the pipe cap; in the open state, the material bottle moves downwards by pressing the pipe cover, the annular opening part and the annular inserting part are separated, the through hole is exposed out of the inner barrel, the through hole, the annular opening part and the water outlet hole are communicated to form a water outlet channel, and the water outlet can be used by pulling up the sleeve pull cover. According to the bottle cap, the water outlet smoothness, the assembling easiness and the operation convenience are improved.

Description

Technical Field

[0001] This invention relates to a bottle cap, and more particularly to a bottle cap for storing additives. Background Technology

[0002] Bottle caps are crucial for sealing liquids within bottles and are widely used in various bottled liquid products. However, the vast majority of bottle caps are ordinary snap-on or threaded caps, serving only to seal and prevent contamination of the contents from the external environment. Liquid beverages, liquid pharmaceuticals, and liquid reagents are mostly mixed liquids prepared by adding ingredients to water before leaving the factory, then directly filled into bottles, sealed with caps, and transported to the market. Mixed liquids are prone to various changes, and to ensure they do not deteriorate and extend shelf life, manufacturers have to add preservatives, stabilizers, and other synthetic chemical substances. These preservatives not only affect the flavor of beverages, the efficacy of pharmaceuticals, and the purity of reagents, but are also detrimental to human health.

[0003] To address the aforementioned issues, a few bottle caps on the market now offer separate packaging for ingredients and water. The principle is as follows: the ingredients are sealed inside the cap using an aluminum foil or similar sealing film, and a piercing mechanism is included. To use, pressing or rotating the piercing mechanism breaks the sealing film, allowing the stored ingredients to fall into the bottle and mix with the water. After thorough shaking, the cap is then screwed open for drinking or consumption. This type of cap eliminates the need for additional preservatives and is considered healthier. However, this type of cap has some drawbacks:

[0004] The main drawbacks are poor water flow, a complex filling process, and inconvenient operation during drinking. This type of bottle cap typically uses aluminum foil as a sealing film. The flow of ingredients is affected by the holes in the foil, and due to the material's properties, the size of these holes varies. Small holes usually prevent ingredients from flowing smoothly and dissolve completely, especially for thick or large-particle ingredients, which can easily leave residues and clumps, adhering to the foil and obstructing water flow, thus affecting the drinking experience. The complex assembly process requires inserting a piercing component into the cap, then inverting the cap to add ingredients, and finally sealing it with aluminum foil. This is not only cumbersome but also prone to spillage. Furthermore, the aluminum foil requires high-temperature welding, which may cause the added ingredients to deteriorate. Inconvenient operation requires repeated twisting, unscrewing, and reinstalling of the cap with both hands each time, making it unsuitable for single-handed operation scenarios such as driving or exercising. The cap is also prone to being lost or falling off and causing contamination.

[0005] Secondly, its disadvantages include: the puncture parts are not sufficiently sealed, resulting in poor moisture protection; and the seal deteriorates after operation, leading to gaps that allow liquid to leak out. Furthermore, aluminum foil is not only susceptible to acids and alkalis, limiting the types of ingredients that can be used, but it is also difficult to recycle, non-biodegradable, and environmentally unfriendly. Summary of the Invention

[0006] To address the aforementioned technical problems, the present invention aims to provide a storage bottle cap that improves water flow smoothness, ease of assembly, and convenience of operation.

[0007] To achieve the above objectives, the technical solution adopted by the present invention is as follows:

[0008] A storage bottle cap, comprising:

[0009] The cover body is integrally provided with a hollow inner cylinder and a cover platform. The top wall of the inner cylinder is provided with an annular insertion part. A sleeve is coaxially provided inside the cover platform. The sleeve is a hollow cylindrical body. The sleeve and the cover platform are connected by a connecting part and are provided with a water outlet hole. The top of the sleeve is higher than the top of the cover platform.

[0010] A material bottle, which is a hollow cylinder with a closed bottom, integrally formed with a cavity and a tube, the diameter of the tube being smaller than the diameter of the cavity, the top end of the tube having an opening, the cavity being movably inserted into the inner cylinder, the tube penetrating the sleeve and extending to the outside of the sleeve, the cavity having at least one annular opening on its top wall, the annular opening correspondingly fitting into the annular insertion part and / or the sleeve, the lower end of the annular opening having a connecting component, and the cavity having at least one through hole I around its perimeter near the bottom;

[0011] The pipe cap is integrally provided with a cap and a cap post. The cap post is inserted into the inside of the pipe section, and the outer wall of the cap post is tightly fitted with the inner wall of the pipe section. The bottom end of the cap is provided with a limiting step, and the top of the sleeve is provided with an annular limiting groove that corresponds to and matches the limiting step. The inner diameter of the limiting step is the same as the outer diameter of the annular limiting groove.

[0012] A pull-out cover is fitted onto the cover platform, and the pull-out cover is movably connected to the cover platform. The pull-out cover and the cover platform can move up and down relative to each other.

[0013] Optionally, at least one through hole II is further provided around the periphery of the tube near the bottom end of the sleeve.

[0014] Optionally, the connecting component provided at the lower end of the annular opening includes: reinforcing ribs or a mesh structure.

[0015] Optionally, the connecting component between the sleeve and the cover portion includes: reinforcing ribs or a mesh structure.

[0016] Optionally, the inner wall of the annular opening is further provided with at least one convex ring and / or an elastic sealing ring, and the annular insertion part and / or sleeve adapted to the annular opening are respectively provided with at least one concave ring and / or groove.

[0017] Optionally, a convex ring I and / or an elastic sealing ring are further provided on the outer wall of the cap column, and a concave ring I and / or a groove are provided on the inner wall of the tube to correspond to and be adapted to the convex ring I and / or the elastic sealing ring.

[0018] Optionally, the outer wall of the tube is further provided with at least one convex ring and / or elastic sealing ring, and the inner wall of the sleeve is provided with at least one concave ring and / or groove corresponding to and adapted to the convex ring and / or elastic sealing ring.

[0019] Optionally, at least one elastic sealing ring is further provided below the through hole I, which is interference-fitted with the inner wall of the inner cylinder.

[0020] Optionally, a sealing edge is provided at the bottom of the cavity, and an annular groove is further provided inside the sealing edge, with the sealing edge covering the edge of the bottom of the inner cylinder.

[0021] Optionally, a protective cap is press-fitted onto the upper end of the cap body via a snap-fit ​​part, and an anti-theft component I is integrally provided at the lower end of the protective cap; an anti-theft component II that snaps onto the bottle body is also provided at the lower end of the side wall of the cap body; a sealing ring is further provided on the top wall of the cap body, and the sealing ring is press-fitted onto the inner wall of the bottle mouth; an internal thread that mates with the external thread of the bottle mouth is further provided on the inner side of the side wall of the cap body.

[0022] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0023] The container, inner cylinder, and cap form a sealed storage space. During use, pressing the cap moves the container, which is movably inserted into the inner cylinder, downwards. This moves the through-holes (I) around the bottom of the cavity to the outside of the inner cylinder, opening the storage space and allowing the ingredients to automatically fall into the container. Due to the large size of the through-holes, the ingredients fall quickly into the water, preventing residue and clumping compared to existing technologies, thus ensuring smooth water flow.

[0024] The tube and cavity are hollow as one piece, and the tube has an opening at the top, so ingredients can be added directly from the opening at the top of the tube. Compared with the cumbersome steps of inverting the bottle cap to fill the contents and then performing high-temperature welding in the existing technology, it is easier to assemble.

[0025] As the material bottle moves downward, the annular opening on the top wall of the cavity separates from the annular insertion part on the top wall of the inner cylinder or the bottom end of the sleeve, connecting the through hole I, the annular opening, and the water outlet to form a water outlet channel. The cover can then be easily opened or closed by moving it up and down. When driving or exercising, it can be easily opened or closed with just one hand or by relying on the mouth. Compared with the existing technology that requires two hands to twist, disassemble, and install, this operation is more convenient.

[0026] Secondly, based on the sealed storage space formed by the material bottle, inner cylinder, and tube cap, the material bottle, sleeve, cap platform, and pull cap work together to form a second sealed space. The protective cap and cap body also form another sealed space. In addition, the elastic sealing components and the cooperation between the convex and concave rings achieve multiple seals, which is better than the sealing and moisture-proof effect of the existing technology and further enhances the sealing performance after operation. Attached Figure Description

[0027] Figure 1 This is a schematic diagram of the split structure of Embodiment 1 of the present invention;

[0028] Figure 2 This is a schematic diagram of the structure in the unpressed state of Embodiment 1 of the present invention;

[0029] Figure 3 This is a cross-sectional view of Embodiment 1 of the present invention in the unpressed state;

[0030] Figure 4 This is a schematic diagram of the structure after pressing in Embodiment 1 of the present invention;

[0031] Figure 5 This is a cross-sectional view of the pressed state in Embodiment 1 of the present invention;

[0032] Figure 6 This is a cross-sectional view of Embodiment 1 of the present invention after the cover has been pressed and pulled up;

[0033] Figure 7 This is a top view of the platform portion of Embodiment 1 of the present invention;

[0034] Figure 8 This is a top view of the material bottle in Embodiment 1 of the present invention;

[0035] Figure 9 This is a cross-sectional view of Embodiment 2 of the present invention;

[0036] Figure 10 This is a top view of the material bottle in Embodiment 2 of the present invention;

[0037] Figure 11 This is a cross-sectional view of Embodiment 3 of the present invention;

[0038] Figure 12 This is a top view of the platform portion of Embodiment 3 of the present invention;

[0039] Figure 13 This is a cross-sectional view of Embodiment 4 of the present invention in the unpressed state;

[0040] Figure 14 yes Figure 13 Enlarged view of point C in the middle;

[0041] Figure 15 This is a cross-sectional view of the pressed state in Embodiment 4 of the present invention;

[0042] In the diagram: 8. Cap body; 6. Bottle; 7. Tube cap; 2. Inner cylinder; 11. Cap platform; 20. Slip-on cap; 18. Annular insertion part; 100. Sleeve; 5. Cavity; 1. Tube part; 55. Annular opening I; 56. Annular opening II; 13. Through hole I; 107. Through hole II; 15. Cap; 16. Cap post; 17. Limiting step; 10. Annular limiting groove; 38. Protective cap; 101. Anti-theft component I; 102. Anti-theft component II; 99. Sealing edge; 21. Raised ring I; 22. Concave ring I; 31. Concave ring II; 32. Raised ring II; 52. Concave ring III 53. Convex Ring III; 61. Convex Ring IV; 62. Concave Ring IV; 113. Convex Ring V; 111. Groove; 25. Elastic Seal I; 26. Elastic Seal II; 27. Elastic Seal III; 28. Elastic Seal IV; 29. ​​Elastic Seal V; 39. Elastic Seal VI; 40. Elastic Seal VII; 33. Internal Thread; 12. Sealing Ring; 3. Snap-fit ​​Part; 30. Reinforcing Rib I; 117. Reinforcing Rib II; 110. Water Outlet; 109. Mesh Structure I; 88. Mesh Structure II; 89. Mesh Structure III; 115. Annular Groove. Detailed Implementation

[0043] The preferred embodiments of the present invention will now be described in detail with reference to the accompanying drawings, so that the advantages and features of the present invention can be more readily understood by those skilled in the art. The description is specific and detailed, but it should not be construed as a limitation on the scope of protection of the invention.

[0044] It should be noted that the terms "installation," "setting," and "connection" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of these terms in this invention based on the specific circumstances.

[0045] In the description of this invention, unless otherwise expressly specified and limited, the terms "upper," "lower," "front," "rear," "left," "right," "top," "bottom," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention.

[0046] Furthermore, terms such as "first" and "second" are used merely to distinguish one entity, space, or operation from another, without necessarily requiring or implying any actual relationship or order between these entities, spaces, or operations. The meaning of "and / or" throughout the text includes three parallel options; for example, "A and / or B" includes option A, option B, or options where both A and B are satisfied.

[0047] Example 1:

[0048] like Figure 1-8As shown, this embodiment provides a storage bottle cap, which includes a cap body 8, a bottle 6, a tube cap 7, and a pull-out cap 20. The cap body 8 is integrally provided with a hollow inner cylinder 2 and a cap platform 11. An annular insertion part 18 is provided at the top wall of the inner cylinder 2. A sleeve 100 is coaxially provided inside the cap platform 11. The sleeve 100 and the cap platform 11 are fixedly connected by a plurality of spaced reinforcing ribs 130. A gap is left between the sleeve 100 and the cap platform 11, forming a water outlet 110. The sleeve 100 is a hollow cylindrical body, and the top of the sleeve 100 is higher than the top of the cap platform 11. The bottle 6 is a hollow cylinder with a closed bottom. The bottle 6 is integrally provided with a... The cavity 5 and the tube 1 are connected. The diameter of the tube 1 is smaller than that of the cavity 5. The top end of the tube 1 has an opening for adding ingredients, improving ease of assembly. The material bottle 6 penetrates the entire cap body 8. The cavity 5 is movably inserted into the inner cylinder 2. The outer wall of the cavity 5 is tightly fitted to the inner wall of the inner cylinder 2. The tube 1 penetrates the sleeve 100 and extends to the outside of the top end of the sleeve 100. The outer wall of the tube 1 is tightly fitted to the inner wall of the sleeve 100. The cavity 5 has an annular opening I55 at its top wall. In this embodiment, the annular opening I55... The lower end of the cavity 5 is provided with several reinforcing ribs II117 at intervals around its perimeter, which are connected to the inner wall of the cavity 5. The annular opening I55 is correspondingly adapted to the annular insertion part 18. In other embodiments, the annular opening I55 can be provided below the sleeve and correspondingly adapted to the sleeve. Alternatively, an additional annular opening can be provided to be inserted and adapted to the sleeve 100. Several through holes I13 are provided around the perimeter of the cavity 5 near its bottom end. The tube cover 7 is integrally provided with a cap 15 and a cap post 16. The cap post 16 is inserted into the inside of the tube 1. The outer wall is tightly fitted to the inner wall of the tube 1; in this embodiment, the bottom end of the cap 16 extends to the bottom end of the tube 1; the bottom end of the cap 15 is provided with a limiting step 17, and the top of the sleeve 100 is provided with an annular limiting groove 10 that corresponds to and matches the limiting step 17. The diameter of the limiting step 17 is the same as the outer diameter of the annular limiting groove 10; the pull cover 20 is inserted into the cover platform 11, and the pull cover 20 and the cover platform 11 can move up and down relative to each other. The top wall of the pull cover 20 is provided with a circular through hole that corresponds to the outer periphery of the top end of the sleeve 100.

[0049] Specifically, the bottle cap has an initial state and a usage state. In the initial state, the bottle 6, the cap 7, and the inner cylinder 2 cooperate to form a first sealed space for storing ingredients, achieving solid-liquid separation and extending the shelf life without adding preservatives. The bottle 6, the sleeve 100, the cap platform 11, and the pull cap 20 cooperate to form a second sealed space, which increases the sealing performance when the bottle cap is in the initial state. In the usage state, by pressing down on the cap 15, the bottle 6 moves downward. During this process, the annular opening I55 separates from the annular insertion part 18. When the limiting step 17 abuts against the annular limiting groove 10, the through hole I13 moves to the outside of the bottom end of the inner cylinder 2, and the ingredients fall into the bottle through the through hole I13. The annular limiting groove 10 restricts the bottle 6 from falling down. The through hole I13, the annular opening I55, and the water outlet 110 are connected to form a water outlet channel. Then, by pulling up the pull cap 20, the mixed liquid can be drunk directly or used.

[0050] Furthermore, the inner wall of the annular opening I55 is provided with a convex ring II32 and / or a convex ring III53, and the annular insertion part 18 is provided with a concave ring II31 and / or a concave ring III52 that are adapted to the convex ring II32 and / or the convex ring III53. This arrangement makes the annular opening I55 and the annular insertion part 18 fit more tightly, preventing the material bottle 6 from easily falling off and causing the ingredients to mix with water in advance.

[0051] Furthermore, a convex ring I21 is provided on the outer wall of the cap column 16, and a concave ring I22 corresponding to and adapted to the convex ring I21 is provided on the inner wall of the tube 1; an elastic sealing ring I25 is provided on the outer wall of the cap column 16, and the elastic sealing ring I25 is interference-fitted with the groove on the inner wall of the tube 1. The elastic sealing ring I25 and the cap column 16 are integrally formed by two-color injection molding, and the elastic sealing ring can prevent the ingredients from getting damp.

[0052] Furthermore, an elastic sealing ring II26 is provided at the bottom of the outer wall of the tube 1. The elastic sealing ring II26 is interference-fitted with the groove on the inner wall of the sleeve 100. The elastic sealing ring II26 and the tube 1 are integrally molded by two-color injection molding. This elastic sealing ring can prevent the feed material from getting damp.

[0053] Furthermore, an elastic sealing ring III27 is provided at the lower end of the through hole I13 of cavity 5. The elastic sealing ring III27 is press-fitted with the groove on the inner wall of the inner cylinder 2. The elastic sealing ring III27 and cavity 5 are integrally molded by two-color injection molding. This elastic sealing ring can prevent the filling material from getting damp. A sealing rim 99 is integrally provided at the bottom end of cavity 5. An annular groove 115 is provided inside the sealing rim 99. The sealing rim 99 covers the edge of the bottom end of the inner cylinder 2.

[0054] Furthermore, a protective cap 38 is press-fitted onto the upper end of the cap body 8 via a snap-fit ​​part 3 to prevent contamination of the pull-tab cap 20 and further improve the sealing effect. An anti-theft component I101 is also integrally provided at the lower end of the protective cap 38, allowing consumers to identify whether the product has been opened before purchase. An anti-theft component II102 is provided at the lower end of the side wall of the cap body 8, which interlocks with the bottle body. A sealing ring 12 is provided on the top wall of the cap body, and the sealing ring 12 is press-fitted with the inner wall of the bottle mouth to further enhance the sealing performance. An internal thread 33 is provided on the inner side wall of the cap body 8, which mates with the external thread of the bottle mouth, and the internal thread 33 is compatible with the external thread of the bottle mouth of ordinary-sized bottles.

[0055] Furthermore, such as Figure 6 As shown, the inner wall of the sleeve cover 20 is provided with a protruding ring V113, and the cover platform 11 is provided with a groove 111 that matches the protruding ring V113. This arrangement can limit the stroke of the sleeve cover 20 moving up and down.

[0056] Example 2

[0057] Reference Figure 9-10 As shown, this embodiment is basically the same as embodiment 1, except that the bottom of the cover column 16 in this embodiment does not extend to the bottom end of the pipe 1, and the pipe 1 is provided with several through holes II107 near the bottom end of the sleeve 100; in the use state, the through holes II107 move downward to the outside of the bottom end of the sleeve 100 to further increase the smoothness of water flow; the reinforcing rib II117 at the lower end of the annular opening I55 is changed to a mesh structure I109.

[0058] Example 3

[0059] Reference Figure 11-12 As shown, this embodiment is basically the same as embodiment 1, except that the reinforcing rib I30 between the cover portion 11 and the sleeve 100 is replaced with a mesh structure II88; the convex ring II32 and / or convex ring III53 on the inner wall of the annular opening portion I55 are replaced with elastic sealing ring IV28 and / or elastic sealing ring V29; a convex ring IV61 is added to the outer wall of the tube portion 1, and a concave ring IV62 that matches the convex ring IV61 is provided on the inner wall of the sleeve 100 to prevent the material bottle 6 from easily falling off and causing the ingredients to mix with water in advance.

[0060] Example 4

[0061] Reference Figure 13-15 As shown, the difference between this embodiment and embodiment 3 is that an annular opening II56 is added to the top wall of cavity 5. The annular opening II56 is inserted into the bottom end of sleeve 100. The inner wall of the annular opening II56 is provided with elastic sealing ring VI39 and / or elastic sealing ring VII40. The lower end of the annular opening II56 is provided with mesh structure III89. The mesh structure II88 between cover 11 and sleeve 100 is replaced with reinforcing rib I30.

[0062] The embodiments described above are only for illustrating the technical concept and features of the present invention, and are merely preferred embodiments, representing only a portion of the embodiments and not all of them, and are not intended to limit the present invention. Based on the inventive concept and principles of the present invention, any modifications, equivalent substitutions, variations, improvements, etc., made by those skilled in the art without creative effort should be covered within the protection scope of the present invention. Furthermore, any reference numerals in the claims should not be considered as limitations on the claims. The technical features involved in the various embodiments of the present invention described above can be combined with each other as long as they do not conflict with each other.

Claims

1. A storage bottle cap, characterized in that, include: The cover body (8) is integrally provided with a hollow inner cylinder (2) and a cover platform (11). The top wall of the inner cylinder (2) is provided with an annular insertion part (18). A sleeve (100) is coaxially provided inside the cover platform (11). The sleeve (100) is a hollow cylindrical body. The sleeve (100) and the cover platform (11) are connected by a connecting component and are provided with a water outlet hole (110). The top of the sleeve (100) is higher than the top of the cover platform (11). A material bottle (6) is a hollow cylindrical shape with a closed bottom. The material bottle (6) is integrally provided with a cavity (5) and a tube (1). The diameter of the tube (1) is smaller than the diameter of the cavity (5). The top end of the tube (1) has an opening. The cavity (5) is movably inserted into the inner cylinder (2). The tube (1) penetrates the sleeve (100) and extends to the outside of the sleeve (100). The cavity (5) has at least one annular opening at the top wall. The annular opening is adapted to the annular insertion part (18) and / or the sleeve (100). A connecting part is provided at the lower end of the annular opening. At least one through hole I (13) is provided around the cavity (5) near the bottom. The pipe cap (7) is integrally provided with a cap (15) and a cap post (16). The cap post (16) is inserted into the inside of the pipe (1). The bottom end of the cap (15) is provided with a limiting step (17). The top of the sleeve (100) is provided with an annular limiting groove (10) that corresponds to and matches the limiting step (17). The inner diameter of the limiting step (17) is the same as the outer diameter of the annular limiting groove (10). A pull-out cover (20) is fitted onto the cover platform (11). The pull-out cover (20) is movably connected to the cover platform (11), and the pull-out cover (20) and the cover platform (11) can move up and down relative to each other.

2. A storage bottle cap according to claim 1, characterized in that: The tube (1) has at least one through hole II (107) around its sidewall near the bottom of the sleeve (100).

3. A storage bottle cap according to claim 1, characterized in that: The connecting component provided at the lower end of the annular opening includes: reinforcing ribs or a mesh structure.

4. A storage bottle cap according to claim 1, characterized in that: The connecting component between the sleeve (100) and the cover plate (11) includes: reinforcing ribs or a mesh structure.

5. A storage bottle cap according to claim 1, characterized in that, The inner wall of the annular opening is further provided with at least one convex ring and / or elastic sealing ring, and the annular insertion part (18) and / or sleeve (100) adapted to the annular opening are provided with at least one concave ring and / or groove.

6. A storage bottle cap according to claim 1, characterized in that: The outer wall of the cap column (16) is further provided with a convex ring I (21) and / or an elastic sealing ring (25), and the inner wall of the tube (1) is provided with a concave ring I (22) and / or a groove that are adapted to the convex ring I (21) and / or the elastic sealing ring (25).

7. A storage bottle cap according to claim 1, characterized in that: The outer wall of the tube (1) is further provided with at least one convex ring and / or elastic sealing ring, and the inner wall of the sleeve (100) is provided with at least one concave ring and / or groove that corresponds to and matches the convex ring and / or elastic sealing ring.

8. A storage bottle cap according to claim 1, characterized in that: At least one elastic sealing ring is further provided below the through hole I (13) and is interference-fitted with the inner wall of the inner cylinder (2).

9. A storage bottle cap according to claim 1, characterized in that: The bottom end of the cavity (5) is also provided with a sealing edge (99), and the inside of the sealing edge (99) is further provided with an annular groove (115), and the sealing edge (99) covers the edge of the bottom end of the inner cylinder (2).

10. A storage bottle cap according to claim 1, characterized in that: The upper end of the cap body (8) is fitted with a protective cap (38) by an interference fit through a snap-fit ​​part (3). The lower end of the protective cap (38) is also integrally provided with an anti-theft component I (101). The lower end of the side wall of the cap body (8) is also provided with an anti-theft component II (102) that is fastened to the bottle body. The top wall of the cap body (8) is further provided with a sealing ring (12), which is interference fitted with the inner wall of the bottle mouth. The inner side of the side wall of the cap body (8) is further provided with an internal thread (33) that mates with the external thread of the bottle mouth.

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