Instant preparation bottle cap and instant preparation bottle

Abstract

The utility model provides an instant preparation bottle cap and an instant preparation bottle, the instant preparation bottle cap comprises an upper cap, a lower cap and a sealing plug, the upper cap, the lower cap and the sealing plug enclose to form a sealed material storage cavity, the upper cap comprises a pressing part, an elastic part, a protection part, an upper cap cylinder and a support pillar which are integrally formed, the elastic part comprises a first elastic wall and a second elastic wall, and the first elastic wall is provided with a first opening. The lower cover comprises a lower cover body and a lower cover barrel, the pressing part can drive the elastic part to deform and move downwards under the action of external force, and the jacking column synchronously pushes the sealing plug to move downwards, so that the sealing plug is separated from the bottom of the lower cover barrel to open the storage cavity. The first elastic wall is connected with the pressing part and the second elastic wall, the circle center of the first elastic wall is close to the material storage cavity, the circle center of the second elastic wall is far away from the material storage cavity, when the pressing part is pressed downwards, the first elastic wall shrinks downwards, the resistance to the pressing part is small, the pressing part is pressed downwards easily, and therefore the pressing part can be pressed downwards easily. And the reliability and the use experience are improved.

Description

Technical Field

[0001] The utility model relates to the technical field of bottle cap manufacturing, in particular to an instant bottle cap and an instant bottle. Background Art

[0002] Traditional packaged beverages (such as bottled tea drinks) are sold after the solute is mixed with water. In order to extend the shelf life of the beverage, various artificial chemicals such as preservatives and stabilizers are added, which not only affects the taste, but also causes a certain degree of harm to the human body. This is not advocated by the current concept of healthy living. Therefore, ready-to-use bottle caps came into being. The solute is sealed and stored in the bottle cap, which can effectively and stably preserve the activity of various nutrients. When the beverage is needed, the solute in the bottle cap is released into the water, which not only obtains a longer shelf life, but also tastes fresh. It does not require the addition of any artificial preservatives and is more in line with the needs of healthy drinks. Ready-to-use bottle caps with the above functions usually adopt a sealing film or a weak layer structure design. When drinking, the sealing film is broken or the weak layer is opened, so that the solute in the storage cavity flows out and mixes with the water in the bottle.

[0003] In the existing instant bottle cap, the side wall of the upper cover is connected to the pressing part by an elastic part. The arc surface of the elastic part bulges upward to form a force-bearing arched surface. When pressing downward, it is necessary to overcome a large elastic resistance. It is often possible that the pressing part cannot be pressed down or requires a lot of force, resulting in poor reliability and a bad user experience. Utility Model Content

[0004] In view of this, the present invention proposes an instant bottle cap and an instant bottle to solve the problems proposed in the above-mentioned background technology that the side wall of the upper cover and the pressing part are connected by an elastic part, the arc surface of the elastic part bulges upward to present a force-bearing arched surface, and when pressing downward, it is necessary to overcome a large elastic resistance, and the pressing part often cannot be pressed down or requires a lot of force, resulting in poor reliability and a bad user experience.

[0005] The technical solution of the present utility model is achieved as follows:

[0006] In a first aspect, the present invention provides a ready-to-use bottle cap, comprising an upper cover, a lower cover, and a sealing plug, wherein the upper cover, the lower cover, and the sealing plug together form a sealed material storage cavity, wherein:

[0007] The upper cover includes an integrally formed pressing portion, an elastic portion, a protecting portion, a top column and an upper cover cylinder, the edge of the pressing portion and a gap being set between the protecting portion, the elastic portion being connected between the pressing portion and the protecting portion, the elastic portion including a first elastic wall and a second elastic wall, the first elastic wall being connected to the pressing portion and the second elastic wall respectively, the center of the first elastic wall being close to the material storage cavity, the center of the second elastic wall being away from the material storage cavity, and the second elastic wall being connected to the protecting portion; the edge of the elastic portion extends and bulges in a direction away from the material storage cavity to form the protecting portion; the top column is arranged below the pressing portion, and its lower end is clamped with the sealing plug; the inner side of the edge of the protecting portion extends toward the direction of the material storage cavity to form the upper cover cylinder;

[0008] The lower cover includes a lower cover cylinder and a lower cover body, the lower cover cylinder is integrally sleeved on the lower cover body, the bottom of the lower cover cylinder is clamped with the sealing plug; the top of the lower cover body is connected to the upper cover cylinder, the top surface of the lower cover body is pressed and connected to the bottom surface of the protection part, and the connection is sealed by ultrasonic welding;

[0009] The pressing portion can drive the elastic portion to deform and move downward under the action of an external force, and the top column simultaneously pushes the sealing plug to move downward, so that the sealing plug is disconnected from the bottom of the lower cover tube to open the storage chamber.

[0010] On the basis of the above technical solution, preferably, the upper cover tube includes a first annular protrusion and a second annular protrusion, a snap-fit groove is provided between the first annular protrusion and the second annular protrusion, and a snap-fit portion is provided on the top of the lower cover body, and the snap-fit portion is snapped into the snap-fit groove.

[0011] On the basis of the above technical solution, preferably, a fuse is provided at a position where the bottom surface of the protection portion abuts against the clamping portion, and the longitudinal section of the fuse is a triangle.

[0012] On the basis of the above technical solution, preferably, the height of the pressing portion is lower than the height of the protecting portion to protect the pressing portion and prevent the pressing portion from being accidentally touched by external force in abnormal use.

[0013] On the basis of the above technical solution, preferably, a bottle mouth connecting groove is formed between the lower cover body and the lower cover cylinder; and the inner wall of the lower cover body is provided with an internal thread for connecting with the external thread of the bottle mouth.

[0014] On the basis of the above technical solution, preferably, the lower cover further includes an anti-theft ring provided at the bottom of the lower cover body, and the top of the anti-theft ring is integrally connected to the bottom edge of the lower cover body through a plurality of filamentous structures.

[0015] On the basis of the above technical solution, preferably, the sealing plug includes an integrally formed plug ring, plug surface, plug bottom and snap-in hole, the plug ring is arranged on the periphery of the plug surface, and the plug ring is sealedly connected to the inner wall of the bottom of the lower cover tube; the plug surface faces the storage cavity, and a snap-in hole is provided on the plug surface, and the bottom of the top column is plugged into the snap-in hole.

[0016] On the basis of the above technical solution, preferably, a limiting step is provided at the bottom of the inner wall of the lower cover tube, and the plug surface abuts against the limiting step so that the plug bottom is flush with the bottom of the lower cover tube.

[0017] On the basis of the above technical solution, preferably, a third annular protrusion is provided on the inner wall of the snap-fitting hole, and an annular groove is provided on the outer wall of the bottom of the top column, and the annular groove is snap-fitted with the third annular protrusion to achieve a more secure plug-in effect; the outer wall of the plug ring is provided with an integrally formed annular convex sealing line, the diameter of the annular convex sealing line is larger than the inner diameter of the cover tube, and an interference fit is formed between the sealing plug and the lower cover tube through the elasticity of the injection molded part to achieve a better sealing effect.

[0018] On the basis of the above technical solution, preferably, a sealing film is also included, which is a composite material with high barrier properties. The sealing film is covered on the lower surface flush with the sealing plug and the lower cover tube through heat sealing or ultrasonic welding process to completely cover the structural gap between the sealing plug and the bottom of the lower cover tube to achieve a complete sealing effect.

[0019] In the second aspect, the utility model proposes an instant bottle, including a bottle body and the instant bottle cap, the bottle mouth of the bottle body is provided with an external thread, the inner wall of the lower cover body is provided with an internal thread, and the internal thread is sealed with the external thread.

[0020] The instant bottle cap of the present invention has the following beneficial effects compared with the prior art:

[0021] (1) The first elastic wall is connected to the pressing portion and the second elastic wall respectively, the center of the first elastic wall is close to the material storage cavity, and the center of the second elastic wall is far away from the material storage cavity. When the pressing portion is pressed downward, the first elastic wall contracts downward, and the resistance to the pressing portion is small, making it easier to press the pressing portion down, requiring little force, thereby improving reliability and user experience;

[0022] (2) A snap-fit groove is formed between the first annular protrusion and the second annular protrusion, and a snap-fit portion is provided on the top of the lower cover body. The snap-fit portion is snapped into the snap-fit groove to position the upper cover tube and the lower cover body, thereby facilitating ultrasonic welding between the upper cover tube and the lower cover body, thereby improving welding quality;

[0023] (3) A fuse is provided at a position where the bottom surface of the protection portion contacts the clamping portion. The longitudinal cross-section of the fuse is triangular. The fuse is used for welding during ultrasonic welding to achieve a better welding effect.

[0024] (4) The height of the pressing portion is lower than that of the protecting portion, and the annular protective area formed by the upward protrusion of the protecting portion is used to accommodate the pressing portion and the elastic portion. The protecting portion, the pressing portion and the elastic portion can be integrally injection-molded during production, thereby preventing the pressing portion from being accidentally touched by external force when not in use. There is no need to install an additional protective cover to protect the pressing portion, thereby simplifying the structure of the instant bottle cap, saving components, and reducing the production cost of the instant bottle cap;

[0025] (5) A limiting step is provided at the bottom of the inner wall of the lower cover tube, and the plug surface abuts against the limiting step so that the bottom of the plug is flush with the bottom of the lower cover tube. A sealing plug structure is adopted, which facilitates covering the sealing film on the lower surface flush with the sealing plug and the lower cover tube by heat sealing or ultrasonic welding process, so as to completely cover the structural gap between the sealing plug and the bottom of the lower cover tube and achieve a complete sealing effect; and the contact area between the plug ring of the sealing plug and the inner wall of the bottom of the cover tube is small, so the friction is small. When using the product, the resistance of manually applying downward force to the pressing part of the cover body to open the storage chamber is small, which is more labor-saving and smooth. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0027] Figure 1 This is a cross-sectional view of the instant bottle cap in Example 1 of the present utility model;

[0028] Figure 2 This is a three-dimensional diagram of the ready-to-use bottle cap in Example 1 of the present utility model;

[0029] Figure 3 The explosion of the instant bottle cap in the first embodiment of the present invention Figure 1 ;

[0030] Figure 4 The explosion of the bottle cap in the first embodiment of the present invention Figure 2 ;

[0031] Figure 5 For the utility model Figure 1 A partial enlarged view of part A in the middle;

[0032] Figure 6 For the utility model Figure 1 A partial enlarged view of part B in the middle;

[0033] Figure 7 This is a cross-sectional view of the ready-to-use bottle cap in Example 2 of the present utility model;

[0034] Figure 8 The explosion of the instant bottle cap in Example 2 of the present utility model Figure 1 ;

[0035] Figure 9 The explosion of the instant bottle cap in Example 2 of the present utility model Figure 2 ;

[0036] Figure 10 It is a structural schematic diagram of the instant dispensing bottle in an embodiment of the present utility model.

[0037] Description of reference numerals:

[0038] 100-ready-to-use bottle cap; 200-bottle body;

[0039] 1-upper cover; 2-lower cover; 3-sealing plug; 4-storage cavity; 5-sealing membrane;

[0040] 11-pressing portion; 12-elastic portion, 121-first elastic wall, 122-second elastic wall; 13-protecting portion, 131-fuse wire; 14-top column, 141-column core, 1411-annular groove, 142-support wing plate; 15-upper cover, 151-first annular protrusion, 152-second annular protrusion, 1521-clamping groove, 153-clamping groove;

[0041] 21-lower cover cylinder, 211-limiting step, 212-clamping ring protrusion; 22-lower cover body, 221-clamping part, 2211-clamping protrusion, 222-internal thread; 23-anti-theft ring;

[0042] 31-plug ring, 311-annular convex sealing line, 32-plug surface, 33-plug bottom, 34-clamping hole, 341-third annular protrusion. DETAILED DESCRIPTION

[0043] The following will be combined with the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0044] Example 1

[0045] Reference Figures 1-6 As shown, the embodiment of the present invention proposes an upper cover 1, a lower cover 2 and a sealing plug 3, wherein the upper cover 1, the lower cover 2 and the sealing plug 3 together form a sealed storage cavity 4, wherein:

[0046] The upper cover 1 includes an integrally formed pressing portion 11, an elastic portion 12, a protective portion 13, an upper cover tube 15 and a top column 14. The edge of the pressing portion 11 extends outward in a direction close to the storage chamber 4 to form the elastic portion 12. A gap is set between the edge of the pressing portion 11 and the protective portion 13. The elastic portion 12 is connected between the pressing portion 11 and the protective portion 13. The elastic portion 12 includes an arc-shaped first elastic wall 121 and a second elastic wall 122. The first elastic wall 121 is connected to the pressing portion 11 and the second elastic wall 122 respectively. The connection between the first elastic wall 121 and the second elastic wall 122 is smoothly transitioned. The center of the first elastic wall 121 is close to the material storage cavity 4, and the center of the second elastic wall 122 is away from the material storage cavity 4. The second elastic wall 122 is connected to the protection portion 13; the edge of the elastic portion 12 extends and bulges in a direction away from the material storage cavity 4 to form the protection portion 13; the top column 14 is arranged below the pressing portion 11, and the lower end of the top column 14 is engaged with the sealing plug 3; the inner side of the edge of the protection portion 13 extends in the direction of the material storage cavity 4 to form the upper cover tube 15;

[0047] The lower cover 2 includes a lower cover tube 21 and a lower cover body 22. The lower cover tube 21 is integrally sleeved on the lower cover body 22. The bottom of the lower cover tube 21 is sealed and clamped with the sealing plug 3. The inner wall of the lower cover body 22 is connected to the outer wall of the upper cover tube 15. The top surface of the lower cover body 22 is pressed and connected to the bottom surface of the protective portion 13. The connection is sealed by ultrasonic welding.

[0048] The pressing portion 11 can drive the elastic portion 12 to deform and move downward under the action of external force, and the top column 14 simultaneously pushes the sealing plug 3 to move downward, so that the sealing plug 3 is disconnected from the bottom of the lower cover tube 21 to open the storage chamber 4.

[0049] In this embodiment, the inner wall of the lower cover body 22 and the outer wall of the upper cover tube 15 can be connected by interference fit, and the upper cover tube 15 is inserted into the lower cover body 22 until the top surface of the lower cover body 22 is pressed and connected with the bottom surface of the protective part 13, and then the connection is ultrasonically welded so that the welding position is located at the upper part of the entire bottle cap.

[0050] The instant bottle cap proposed in this embodiment is connected to the pressing portion 11 and the second elastic wall 122 respectively through the first elastic wall 121. The center of the first elastic wall 121 is close to the storage cavity 4, and the center of the second elastic wall 122 is away from the storage cavity 4. When the pressing portion 11 is pressed downward, the first elastic wall 121 contracts downward, and the resistance to the pressing portion 11 is small, making it easier to press the pressing portion 11, requiring little force, thereby improving reliability and user experience.

[0051] In some embodiments, the upper cover tube 15 includes a first annular protrusion 151 and a second annular protrusion 152. A snap-fit groove 153 is provided between the first annular protrusion 151 and the second annular protrusion 152. A snap-fit portion 221 is provided at the top of the lower cover body 22, and the snap-fit portion 221 is snap-fitted into the snap-fit groove 153. By providing the snap-fit groove 153 between the first annular protrusion 151 and the second annular protrusion 152, and providing the snap-fit portion 221 at the top of the lower cover body 22, and snap-fitting into the snap-fit groove 153, the upper cover tube 15 and the lower cover body 22 are positioned, facilitating welding between the upper cover tube 15 and the lower cover body 22 and improving welding quality. After the snap-fit portion 221 is snap-fitted into the snap-fit groove 153, the outer wall of the second annular protrusion 152 is flush with the outermost circle of the lower cover body 22.

[0052] In some embodiments, as Figure 5 As shown, a fuse 131 is provided at the portion where the bottom surface of the protective portion 13 abuts the clamping portion 221. The longitudinal section of the fuse 131 is a triangle. The fuse 131 is used for welding during ultrasonic welding to achieve a better welding effect. During ultrasonic welding, the smaller the contact area between the two plastic workpieces, the more concentrated the energy is, while reducing the overall energy required for melting and fusing the plastics. The fuse 131 is designed in this way, a triangle protruding on the welding interface of a plastic part. The basic function of the fuse 131 is to concentrate the vibration energy at the tip of the triangle, and the accumulated heat thereafter forms a uniform plastic melt flow across the entire welding interface. The fuse 131 has many advantages. It can increase the strength of the weld, reduce cold welds, flash and amplitude, improve the perfection of the welded workpiece, and even reduce processing time.

[0053] In some embodiments, the height of the pressing portion 11 is lower than the height of the protecting portion 13, that is, the distance between the pressing portion 11 and the lower cover tube 21 is smaller than the distance between the protecting portion 13 and the lower cover tube 21. The annular protective area formed by the upward protrusion of the protecting portion 13 is used to accommodate the pressing portion 11 and the elastic portion 12. The protecting portion 13, the pressing portion 11 and the elastic portion 12 can be injection molded in one step during production, without the need to install an additional protective cover to protect the pressing portion 11, so as to prevent the pressing portion 11 from being accidentally touched by external force when not in use, thereby simplifying the structure of the ready-to-use bottle cap, saving components, and reducing the production cost of the ready-to-use bottle cap.

[0054] In some embodiments, a bottle mouth connection groove is formed between the lower cover body 22 and the lower cover cylinder 21; the inner wall of the lower cover body 22 is provided with an internal thread 222 for connecting with the external thread of the bottle mouth. By forming a bottle mouth connection groove between the lower cover body 22 and the lower cover cylinder 21, the inner wall of the lower cover body 22 is provided with an internal thread 222, which is used to connect with the external thread of the bottle mouth, thereby achieving the connection between the bottle cap and the bottle body.

[0055] In some embodiments, the lower cover 2 further includes an anti-theft ring 23 disposed on the bottom of the lower cover body 22. The top of the anti-theft ring 23 is integrally connected to the bottom edge of the lower cover body 22 via a plurality of filament-like structures. Due to the provision of the anti-theft ring 23, when the user unscrews the instant bottle cap, the anti-theft ring 23 breaks off from the lower cover body 22, remaining on the bottle. The user can determine whether the instant bottle cap is sealed intact or has been maliciously opened based on whether the anti-theft ring 23 is broken, thereby ensuring the food safety of the packaged beverage.

[0056] It should be noted that in this embodiment, the lower cover tube 21 is straight-cylindrical, with its inner diameter remaining constant along its axis, and the inner wall of the bottom of the lower cover tube 21 is sealed to the sealing plug 3. The straight-cylindrical design allows for a larger discharge opening after the sealing plug 3 is opened, making it suitable for filling large amounts of solute particles with poor fluidity or viscous liquids such as meal replacement powder, milk tea ingredients, honey, etc.

[0057] In some other embodiments, the lower cover tube 21 may also be funnel-shaped.

[0058] In some embodiments, the sealing plug 3 includes: a plug ring 31, a plug surface 32, a plug bottom 33, and a snap-in hole 34. The sealing plug 3 is a cone-like structure. The portion directly sealed with the bottom end of the inner wall of the lower cover tube 21 is the plug ring 31. The end facing the storage chamber 4 is the plug surface 32, which is a cone with an arc-shaped slope. The top of the cone is provided with a snap-in hole 34. The top column 14 of the upper cover 1 is plugged into the snap-in hole 34. The inner wall of the snap-in hole 34 and the outer wall of the top column 14 are formed with matching annular grooves 1411 and third annular protrusions 341 to achieve a more secure and stable plug-in effect, thereby preventing the sealing plug 3 from falling off after the storage chamber 4 is opened. The plug bottom 33 is a lightweight structure composed of multiple nested circular rings of varying sizes, and the bottoms of the multiple rings are flush. After the sealing plug 3 and the lower cover tube 21 are sealed and snap-in in place, the bottoms of the two are flush.

[0059] In some embodiments, as Figure 6 As shown, a limiting step 211 is provided at the bottom of the inner wall of the lower cover tube 21, and the plug surface 32 abuts against the limiting step 211 so that the plug bottom 33 is flush with the bottom of the lower cover tube 21, so that the sealing film 5 can be covered on the lower surface of the sealing plug 3 flush with the lower cover tube 21 through heat sealing or ultrasonic welding process, so as to completely cover the structural gap between the sealing plug 3 and the bottom of the lower cover tube 21 and achieve a complete sealing effect.

[0060] In one embodiment, the outer wall of the plug ring 31 is provided with an integrally formed annular convex sealing line 311, the diameter of which is slightly larger than the inner diameter of the lower cover tube 21, so as to form an interference fit between the sealing plug 3 and the lower cover tube 21 through the elasticity of the injection molded part to achieve a better sealing effect.

[0061] In one embodiment, the top column 14 of the upper cover 1 further includes a column core 141 and a plurality of supporting wing plates 142 integrally connected to the pressing portion 11 . This lightweight structure allows the top column 14 to have greater strength to better withstand downward force.

[0062] In one embodiment, a third annular protrusion 341 is provided on the inner wall of the engaging hole 34, and an annular groove 1411 is provided on the outer wall of the top column 14. The annular groove 1411 engages with the third annular protrusion 341. The engagement between the annular groove 1411 and the third annular protrusion 341 achieves a more secure and stable insertion effect, thereby preventing the sealing plug 3 from falling off after the storage chamber 4 is opened.

[0063] In one embodiment, the instant bottle cap further includes a sealing film 5 made of a high-barrier composite material. To further enhance the seal, the lower surface of the sealing plug 3 flush with the lower cap tube 21 can be welded to the sealing film 5 using ultrasonic or hot-melt welding to cover the gap between the structural components, achieving a seamless, thorough seal. A protective film is also applied to the upper surface of the upper cap 1, sealing the pressing portion 11 and preventing accidental pressing and theft.

[0064] The working principle of the instant bottle cap of this embodiment is: first, the upper cover 1 and the lower cover 2 are assembled together, the clamping portion 221 of the lower cover body 22 is clamped with the clamping groove 153 of the upper cover tube 15, the top surface of the lower cover body 22 is pressed and connected with the bottom surface of the protective portion 13 and the connection is firmly connected by ultrasonic welding, and the two form a storage chamber 4 with a bottom opening; then the assembled upper cover 1 and lower cover 2 are inverted so that the opening at the bottom of the lower cover tube 21 faces upward, and an appropriate amount of solute is injected into the storage chamber 4 through this opening, and then the plug surface 32 of the sealing plug 3 is assembled to the bottom of the lower cover body 22 facing the storage chamber 4, so that the top column 14 of the upper cover 1 is inserted into the clamping hole 34 of the sealing plug 3 to form a firm clamping connection, and at the same time, the plug ring 31 of the sealing plug 3 is sealed and connected to the inner wall of the bottom of the lower cover tube 21, thereby sealing the solute in the storage chamber 4. In order to further enhance the sealing performance, the lower surface of the sealing plug 3 flush with the lower cover body 22 is covered with a sealing film 5 by ultrasonic welding or hot-melt process to cover the gaps between the structural parts and achieve a seamless and thorough sealing effect. At the same time, a protective film is also covered on the upper surface of the upper cover 1 to seal the pressing part 11, which plays a role in preventing accidental pressing and anti-theft opening. The instant bottle cap is installed. Furthermore, after the bottle body is purified and filled with water, the instant bottle cap is assembled to the bottle body by an automatic screw-on process. The instant bottle cap is provided with an internal thread 222, and the bottle mouth of the bottle body is provided with an external thread. The instant bottle cap and the bottle body are tightened by the internal thread 222 and the external thread to form a sealed fit. The bottle using the instant bottle cap has completed the complete production, processing and assembly.

[0065] When in use, tear off the protective film on the upper cover 1, press the pressing part 11 of the upper cover 1 downward with your fingers, push the top column 14 to drive the sealing plug 3 to move downward, so that the sealing plug 3 is separated from the sealing shield of the inner wall of the lower cover body 22, thereby opening the storage chamber 4. The solute pre-filled in the storage chamber 4 falls out from the gap between the sealing plug 3 and the bottom of the lower cover body 22 under the action of gravity, falls into the bottle body and mixes and dissolves with the water in the bottle body. After shaking to mix evenly or letting it stand for a period of time to fully dissolve, it can be drunk.

[0066] Example 2

[0067] Reference Figure 7-9 As shown, this embodiment is different from the first embodiment in that:

[0068] The top surface of the lower cover body 22 is pressed against the bottom surface of the protective portion 13, and there is no ultrasonic welding at the connection. Instead, the lower cover body 22 is clamped to the upper cover tube 15. Specifically, the inner wall of the second annular protrusion 152 is provided with a clamping groove 1521, and the outer wall of the clamping portion 221 is provided with a clamping protrusion 2211. The clamping protrusion 2211 is clamped to the clamping groove 1521 to achieve a sealed connection between the lower cover body 22 and the upper cover tube 15.

[0069] A snap ring protrusion 212 is provided at the bottom of the outer wall of the lower cover tube 21. The snap ring protrusion 212 is snapped into the slot provided on the plug ring 31 to achieve a sealed connection between the lower cover tube 21 and the sealing plug 3.

[0070] The sealing film 5 is not required, and the lower surface of the sealing plug 3 that is flush with the lower cover tube 21 does not have the sealing film 5 .

[0071] The ready-to-use bottle cap of this embodiment is suitable for packaging products with low sealing requirements (such as honey). Considering the packaging of honey, a pure snap-fit structure can meet the sealing requirements, and ultrasonic welding and laminating processes can be omitted to save costs.

[0072] Based on the same concept, the present invention also proposes a ready-to-use bottle, such as Figure 10 As shown, it includes a bottle body 200 and the ready-to-use bottle cap 100 described in Example 1 and Example 2. The bottle mouth of the bottle body 200 is provided with an external thread, and the inner wall of the lower cover body 22 is provided with an internal thread 222, and the internal thread 222 is sealed and connected to the external thread.

[0073] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A ready-to-use bottle cap, characterized in that: The invention comprises an upper cover (1), a lower cover (2) and a sealing plug (3), wherein the upper cover (1), the lower cover (2) and the sealing plug (3) together form a sealed material storage cavity (4), wherein: The upper cover (1) comprises an integrally formed pressing portion (11), an elastic portion (12), a protective portion (13), a top column (14) and an upper cover tube (15); a gap is provided between the edge of the pressing portion (11) and the protective portion (13); the elastic portion (12) is connected between the pressing portion (11) and the protective portion (13); the elastic portion (12) comprises a first elastic wall (121) and a second elastic wall (122); the first elastic wall (121) is connected to the pressing portion (11) and the second elastic wall (122) respectively; The center of the elastic wall (121) is close to the material storage cavity (4), the center of the second elastic wall (122) is away from the material storage cavity (4), and the second elastic wall (122) is connected to the protection portion (13); the edge of the elastic portion (12) extends in a direction away from the material storage cavity (4) to form the protection portion (13); the top column (14) is arranged below the pressing portion (11), and the lower end thereof is engaged with the sealing plug (3); the inner side of the edge of the protection portion (13) extends in the direction of the material storage cavity (4) to form the upper cover cylinder (15); The lower cover (2) comprises a lower cover cylinder (21) and a lower cover body (22); the lower cover cylinder (21) is integrally sleeved on the lower cover body (22); the bottom of the lower cover cylinder (21) is snap-connected with the sealing plug (3); the top of the lower cover body (22) is connected to the upper cover cylinder (15); the top surface of the lower cover body (22) is pressed against the bottom surface of the protective portion (13), and the connection is connected by ultrasonic welding; The pressing portion (11) can drive the elastic portion (12) to deform and move downward under the action of an external force, and the top column (14) simultaneously pushes the sealing plug (3) to move downward, so that the sealing plug (3) is disconnected from the bottom of the lower cover cylinder (21) and the storage chamber (4) is opened.

2. The instant bottle cap according to claim 1, wherein: The upper cover cylinder (15) comprises a first annular protrusion (151) and a second annular protrusion (152); a clamping groove (153) is provided between the first annular protrusion (151) and the second annular protrusion (152); a clamping portion (221) is provided on the lower cover body (22); and the clamping portion (221) is clamped in the clamping groove (153).

3. The instant bottle cap according to claim 2, wherein: A fuse (131) is provided at a position where the bottom surface of the protection portion (13) contacts the clamping portion (221), and the longitudinal section of the fuse (131) is triangular.

4. The instant bottle cap according to claim 3, wherein: The height of the pressing portion (11) is lower than the height of the protecting portion (13).

5. The instant bottle cap according to claim 1, wherein: A bottle mouth connecting groove is formed between the lower cover body (22) and the lower cover cylinder (21); and an inner wall of the lower cover body (22) is provided with an inner thread (222) for connecting with the outer thread of the bottle mouth.

6. The instant bottle cap according to claim 5, characterized in that: The lower cover (2) further comprises an anti-theft ring (23) arranged at the bottom of the lower cover body (22), and the top of the anti-theft ring (23) is integrally connected to the bottom edge of the lower cover body (22) via a plurality of filamentous structures.

7. The instant bottle cap according to claim 1, wherein: The sealing plug (3) comprises an integrally formed plug ring (31), a plug surface (32), a plug bottom (33) and a snap-in hole (34); the plug ring (31) is arranged on the periphery of the plug surface (32); the plug ring (31) is sealedly connected to the inner wall of the bottom of the lower cover cylinder (21); the plug surface (32) faces the material storage cavity (4); a snap-in hole (34) is provided on the plug surface (32); and the bottom of the top column (14) is plugged into the snap-in hole (34).

8. The instant bottle cap according to claim 7, wherein: A limiting step (211) is provided at the bottom of the inner wall of the lower cover cylinder (21), and the plug surface (32) abuts against the limiting step (211) so that the plug bottom (33) is flush with the bottom of the lower cover cylinder (21).

9. The instant bottle cap according to claim 8, wherein: The inner wall of the engaging hole (34) is provided with a third annular protrusion (341), and the outer wall of the bottom of the top column (14) is provided with an annular groove (1411), and the annular groove (1411) is engaged with the third annular protrusion (341) to achieve a more secure plug-in effect; the outer wall of the plug ring (31) is provided with an integrally formed annular convex sealing line (311), the diameter of the annular convex sealing line (311) is larger than the inner diameter of the lower cover tube (21), and an interference fit is formed between the sealing plug (3) and the lower cover tube (21) through the elasticity of the injection molded part to achieve a better sealing effect.

10. A ready-to-drink bottle, characterized in that: The invention comprises a bottle body (200) and the instant bottle cap (100) according to any one of claims 1 to 9, wherein the bottle mouth of the bottle body (200) is provided with an external thread, the inner wall of the lower cap body (22) is provided with an internal thread (222), and the internal thread (222) is sealed and connected to the external thread.

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