Instant Bottle Cap

Abstract

The present invention relates to the technical field of bottle caps and proposes an instant bottle cap which comprises a lid body and a sealing stopper, which surrounds a sealed storage chamber, and which has a pressing part which, under the action of an external force, can deform the elastic part and move it downward, and at the same time, the top post moves the sealing stopper downward, causing the sealing stopper to detach from its connection with the bottom of the lid barrel and open the storage chamber.

Description

[Technical field]

[0001] The present invention relates to the field of bottle cap technology, and in particular to an instant bottle cap. [Background technology]

[0002] Conventional packaged beverages (e.g., bottled tea beverages) are sold by mixing solutes with water, and preservatives and stabilizers are added to extend the shelf life of the beverage, which not only affect the texture but also cause harm to the human body. Therefore, instant bottle caps were created, and solutes are sealed and stored in the bottle cap, which can effectively and stably preserve the activity of various nutrients. When the beverage needs to be consumed, the solutes in the bottle cap can be released into water, which not only provides a relatively long shelf life, but also has a fresh texture and does not require the addition of artificial preservatives, which better meets the demand for health beverages.

[0003] Conventional instant bottle caps generally adopt a fragile layer structure design, and when drinking, the fragile layer is broken or opened, allowing the solute in the chamber to flow into the bottle and mix with the water. This design has the following problems:

[0004] 1. The processing cost is high due to the high difficulty of processing the sealing film or fragile layer. For example, the space for bonding processing of the sealing film structure is limited, and the injection process of the fragile layer structure is difficult, the efficiency is low, and the production defect rate is high. 2. The sealing membrane or fragile layer has a thin structure, which means that it lacks stability and sealing ability. Firstly, during storage and transportation, the sealing membrane or fragile layer is easily damaged, which will affect the quality of the solute contained therein; secondly, even if the fragile layer is not damaged, it lacks sealing ability to block oxygen and moisture. Summary of the Invention [Problem to be solved by the invention]

[0005] In view of this, the present invention proposes an instant bottle cap to solve the technical problem that the fragile layer structure of the instant bottle cap in the prior art is difficult to process and the sealing effect is poor. [Means for solving the problem]

[0006] The technical solution of the present invention is realized as follows:

[0007] In the first aspect, the present invention comprises a lid body and a sealing plug, and the lid body and the sealing plug surround a sealed storage chamber, the lid body includes an integrally molded pressing portion, an elastic portion, a protective portion, a top pillar, and a cover cylinder, the edge of the pressing portion extends outward to form the elastic portion, the edge of the elastic portion extends in a direction away from the storage chamber to form the protective portion, the top pillar is provided below the pressing portion, and its lower end is engaged with the sealing plug, the cover cylinder has a top integrally connected to the edge of the elastic portion, a bottom open, and is slidably and sealingly connected to the sealing plug to form the storage chamber, The pressing portion can deform the elastic portion and move it downward under the action of an external force, and the top post simultaneously moves the sealing plug downward, thereby disengaging the sealing plug from its connection with the bottom of the lid tube and opening the storage chamber, thereby providing an instant bottle cap.

[0008] In the second aspect, the present invention is a container having an upper cover, a lower cover, and a sealing plug, and the upper cover, the lower cover, and the sealing plug surround a sealed storage chamber, The top lid comprises an integrally molded pressing portion, an arc-shaped flexible portion, an annular protective portion, a top post, a top lid cylinder, and an annular upper attachment portion, the annular protective portion protruding upward to surround and form a protective region for accommodating the pressing portion and the arc-shaped flexible portion, and the annular protective portion has a height greater than that of the pressing portion, the sealing plug is removably sealed and connected to the bottom of the bottom lid to seal the storage chamber, the top post is integrally provided below the pressing portion of the top lid and has a lower end fixedly connected to the sealing plug, and when the pressing portion is manually urged downward, the arc-shaped flexible portion deforms and moves downward, and the top post simultaneously moves the sealing plug downward, thereby causing the sealing plug to separate from being shielded by the bottom lid cylinder and opening the storage chamber.

[0009] In a third aspect, the present invention provides a container having an upper cover, a lower cover, and a sealing plug, the upper cover, the lower cover, and the sealing plug surrounding each other to form a sealed storage chamber, the top lid comprises an integrally molded pressing portion, an elastic portion, a protective portion, a top lid cylinder, and a top pillar, the edge of the pressing portion extends outward to form the elastic portion, the edge of the elastic portion extends in a direction away from the storage chamber and protrudes to form the protective portion, the protective portion has a height greater than that of the pressing portion, the top pillar is provided below the pressing portion, and its lower end is engaged with the sealing plug, the inner side of the edge of the protective portion extends toward the storage chamber to form the top lid cylinder, the lower cover comprises a lower cover cylinder and a lower cover body, the lower cover cylinder is integrally fitted into the lower cover body, the bottom of the lower cover cylinder is attached to the sealing plug, the inner wall of the lower cover body is connected to the outer wall of the upper cover cylinder, the upper surface of the lower cover body abuts against the bottom surface of the protective part, and the connection points are sealed and connected by ultrasonic welding; The pressing portion can deform the elastic portion and move it downward under the action of an external force, and the top pillar simultaneously moves the sealing plug downward, thereby disengaging the sealing plug from its connection with the bottom of the lower lid tube and opening the storage chamber, thereby providing an instant bottle cap. [Brief description of the drawings]

[0010] [Figure 1]FIG. 2 is a perspective view of an instant bottle cap in the first embodiment. [Diagram 2] FIG. 2 is a first perspective exploded view of the instant bottle cap in Example 1. [Diagram 3] FIG. 2 is a second perspective exploded view of the instant bottle cap in Example 1. [Figure 4] FIG. 2 is a cross-sectional view of the instant bottle cap in Example 1. [Diagram 5] FIG. 11 is a perspective view of an instant bottle cap in Example 2. [Figure 6] FIG. 11 is a first perspective exploded view of the instant bottle cap in Example 2. [Figure 7] FIG. 2 is a second perspective exploded view of the instant bottle cap in Example 2. [Figure 8] FIG. 1 is a cross-sectional view of an embodiment of an instant bottle cap in Example 2. [Figure 9] FIG. 11 is a cross-sectional view of another embodiment of the instant bottle cap in Example 2. [Figure 10] FIG. 9 is an enlarged view of a portion A in FIG. [Figure 11] FIG. 11 is a perspective view of an instant bottle cap in Example 3. [Figure 12] FIG. 1 is a first perspective exploded view of the instant bottle cap in Example 3. [Figure 13] FIG. 2 is a second perspective exploded view of the instant bottle cap in Example 3. [Figure 14] FIG. 11 is a cross-sectional view of an instant bottle cap in Example 3. [Figure 15] 15 is a partially enlarged view of B in FIG. 14. FIG. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0011] Hereinafter, the present invention will be described in detail with reference to examples. EXAMPLES

[0012] Example 1 As shown in Figures 1 to 4, the instant bottle cap in this embodiment comprises a lid body 1A and a sealing plug 2A, and the space between the lid body 1A and the sealing plug 2A is surrounded to form a sealed storage chamber 4A, which stores a solute.

[0013] Here, the lid main body 1A comprises an integrally molded pressing portion 11A, an elastic portion 12A, a protective portion 13A, a top pillar 14A, and a lid tube 15A, the edge of the pressing portion 11A extends outward to form the elastic portion 12A, the edge of the elastic portion 12A extends in a direction away from the storage chamber 4A to form the protective portion 13A, the protective portion 13A has an annular tubular structure that accommodates the pressing portion 11A and the elastic portion 12A, the upper end of the apex pillar 14A is integrally connected vertically below the pressing portion 11A and the lower end is engaged with the sealing plug 2A, the top of the lid tube 15A is integrally connected to the edge of the elastic portion 12A, the axial direction of the lid tube 15A is opposite to the extending direction of the protective portion 13A, the bottom of the lid tube 15A is open, and the lid tube 15A is slidably sealed and connected to the sealing plug 2A to form the storage chamber 4A. Specifically, the sealing plug 2A, the pressing portion 11A, the elastic portion 12A and the lid cylinder 15A form a sealed storage chamber 4A.

[0014] Under the action of an external force, the pressing portion 11A can deform the elastic portion 12A and move it into the storage chamber 4A, and at the same time, the top pillar 14A moves the sealing plug 2A downward, causing the sealing plug 2A to detach from its connection with the inner wall at the bottom of the lid tube 15A and opening the storage chamber 4A.

[0015] In this embodiment, the elastic portion 12A is made of a flexible material, and when no external force is applied, the elastic portion 12A forms an arc-shaped protrusion structure due to its own elastic force, and the arc-shaped protrusion faces upward. When urged downward by an external force, the elastic portion 12A can be recessed downward.

[0016] The instant bottle cap in this embodiment consists of only two injection-molded parts, the lid body 1A and the sealing plug 2A, which saves one part, makes the structure of the instant bottle cap simpler, reduces production costs, and furthermore, only one location, the connection part between the sealing plug 2A and the lid tube 15A, needs to be sealed, thereby reducing the difficulty of sealing.

[0017] In addition, the adopted sealing plug structure has a small contact area between the sealing plug ring and the bottom of the inner wall of the lid tube, resulting in low frictional force. Therefore, when using the product, there is less resistance when manually pressing the pressing part of the top lid downward to open the storage chamber, making operation smoother and less labor-intensive.

[0018] In this embodiment, the height of the protective part 13A is greater than the height of the pressing part 11A. The protective part 13A, the pressing part 11A and the elastic part 12A can be injection molded at one time during production, and there is no need to attach a separate protective member to protect the pressing part 11A. The height of the protective part 13A is greater than the height of the pressing part 11A, which has the effect of preventing the pressing part 11A from accidentally contacting with an external force when not in use, simplifies the structure of the instant bottle cap, saves on materials, and reduces the production cost of the instant bottle cap.

[0019] In this embodiment, the sealing plug 2A has a plug ring 21A, a plug surface 22A, a plug bottom 23A, and an attachment hole 24A. The sealing plug 2A has a conical structure as a whole. The part directly connected to the lower end of the inner wall of the cylindrical lid 15A is the plug ring 21A, and one end facing the storage chamber 4A is the plug surface 22A. The plug surface 22A is tapered with an arc-shaped inclined surface, and an attachment hole 24A is provided at the tip of the tapered surface. The top pillar 14A of the lid body 1A is inserted into the attachment hole 24A. The plug bottom 23A has a lightweight ring-shaped structure with multiple rings of different sizes that fit together, and the multiple ring bottoms are flush with each other. After the sealing plug 2A and the cylindrical lid 15A are sealed and attached in place, the bottoms of both are flush with each other.

[0020] In this embodiment, an annular convex seal line 211A is integrally molded on the outer wall of the plug ring 21A, and the diameter of the annular convex seal line 211A is slightly larger than the inner diameter of the cover tube 15A. The elasticity of the injection molded product is used to form a fit between the sealing plug 2A and the cover tube 15A, thereby achieving a better sealing effect.

[0021] In this embodiment, an annular groove 241A is provided on the inner wall of the fastening hole 24A, and an annular protrusion 141A is provided on the outer wall of the lower part of the top pillar 14A to fit into the annular groove 241A. The annular protrusion 141A fits into the annular groove 241A, which provides a stronger and more stable insertion effect, making it difficult for the sealing plug 2A to come off after the receiving chamber 4A is opened. In some other embodiments, the recessed and protruding structure of the annular groove 241A and the annular protrusion 141A may be reversed, that is, an annular protrusion may be provided on the inner wall of the fastening hole 24A, and an annular groove may be provided on the outer wall of the lower part of the top pillar 14A.

[0022] In this embodiment, the lid body 1A further includes a lid body 16A that is integrally provided on the outer periphery of the lid cylinder 15A, a connecting groove is formed between the lid body 16A and the lid cylinder 15A, and a female thread 161A for screwing with a male thread at the mouth of a bottle is provided on the inner wall of the lid body 16A. The mouth of the bottle is inserted into the connecting groove, and the bottle cap is connected to the mouth of the bottle by screwing.

[0023] In the above embodiment, the sealing plug 2A and the cover sleeve 15A are slidably connected and have a tight fit between them, which can achieve a good sealing effect, but in order to further strengthen the sealing, in this embodiment, a sealing film 3A is further installed, and the sealing film 3A is welded to the flush lower surface of the sealing plug 2A and the cover sleeve 15A by ultrasonic or hot melt process to cover the gap between the structural members, so as to achieve a seamless and better sealing effect. Specifically, the sealing film 3A is a composite material with high barrier properties.

[0024] The operating principle of the instant bottle cap of Example 1 is as follows: the integrally molded lid body 1A is turned upside down, the opening at the bottom of the lid tube 15A is faced upward, and an appropriate amount of solute is injected into the storage chamber 4A through this opening; and then the plug surface 22A of the sealing stopper 2A is attached to the bottom of the lid tube 15A facing the storage chamber 4A, so that the top post 14A of the lid body 1A is inserted into the fastening hole 24A of the sealing stopper 2A to form a strong fastening, and the stopper ring 21A of the sealing stopper 2A is sealed and connected to the inner wall of the bottom of the lid tube 15A, and the solute is sealed in the storage chamber 4A. In order to further enhance the sealing performance, a sealing film 3A can be welded to the flush underside of the sealing plug 2A and the cover tube 15A by ultrasonic or thermal melting process so as to cover the gap between the structural members, thereby achieving a seamless and better sealing effect.

[0025] After completing solute filling and assembly sealing, the instant bottle cap can be assembled to the bottle by purifying the bottle, injecting water into it, and automatically rotating the cap. The instant bottle cap and the bottle are tightened and sealed with the female thread 161A and the male thread, so that the bottle using this instant bottle cap can complete complete production processing and assembly.

[0026] When in use, the pressing portion 11A of the lid body 1A is pressed downward with a finger, and the top post 14A is pressed to move the sealing stopper 2A downward so that the sealing stopper 2A is released from the sealing shield of the inner wall of the lid barrel 15A. At the same time, the sealing film 3A is released from the bottom of the lid barrel 15A, but remains attached to the plug bottom 23A of the sealing stopper 2A and does not fall into the bottle, so that the storage chamber 4A opens, and the solute previously filled in the storage chamber 4A falls through the gap between the sealing stopper 2A and the bottom of the lid barrel 15A due to gravity, falls into the bottle, and mixes and dissolves with the water in the bottle. It can be drunk after being shaken to mix uniformly or left to stand for a certain period of time to fully dissolve.

[0027] In order to fully utilize the diameter of the lid body 1A as the maximum diameter of the storage chamber 4A, the capacity of the storage chamber 4A of the instant bottle cap can be expanded, and the capacity of the storage chamber 4A can be increased by reducing the space inside the bottle and increasing the water storage capacity of the bottle. In order to prevent the lid tube 15A from protruding too far downward, the lid body 1A can be divided into two parts, an upper lid and a lower lid, and the following Examples 2 and 3 can be obtained. EXAMPLES

[0028] Example 2 5 to 10, the instant bottle cap of this embodiment includes an upper lid 1B, a lower lid 2B, and a sealing plug 3B. The upper lid 1B, the lower lid 2B, and the sealing plug 3B surround each other to form a sealed storage chamber 5B.

[0029] Here, top lid 1B comprises an integrally molded pressing portion 11B, an arc-shaped flexible portion 12B, an annular protective portion 13B, a top pillar 14B, and an top lid tube 15B, and annular protective portion 13B protrudes upward and surrounds the pressing portion 11B and the arc-shaped flexible portion 12B to form a protective area that accommodates pressing portion 11B and the arc-shaped flexible portion 12B, and pressing portion 11B, arc-shaped flexible portion 12B, and annular protective portion 13B are integrally connected, and the height of annular protective portion 13B is greater than the height of pressing portion 11B to prevent erroneous contact of pressing portion 11B with external force when not in use. In order to seal the storage chamber 5B, the sealing plug 3B is removably sealed and connected to the bottom of the lower lid 2B, the top pillar 14B is integrally formed below the pressing portion 11B, and the upper lid cylinder 15B is integrally formed on the bottom surface of the protective portion 13B, and the top of the upper lid 1B is closed and the lower end of the upper lid cylinder 15B is open.

[0030] The bottom cover 2B comprises a bottom cover body 21B and a bottom cover tube 22B. The bottom cover 2B has a cylindrical structure that is open at the top and bottom. The bottom cover body 21B is integrally fitted into the outside of the bottom cover tube 22B. In this embodiment, the top cover 1B and the bottom cover 2B are sealed and fixedly connected to each other. Specifically, the top cover tube 15B and the bottom cover body 21B are sealed and fixedly connected to each other by an interlocking method.

[0031] Specifically, a double-ring shaped upper attachment portion 151B is provided at the lower end of the upper cover tube 15B, and an attachment gap is formed between the double rings of the upper attachment portion 151B, and a double-ring shaped lower attachment portion 211B is provided at the upper end of the lower cover body 21B, and an attachment gap is formed between the double rings of the lower attachment portion 211B, the upper attachment portion 151B and the lower attachment portion 211B are sealing attachment structures that fit into each other, and each double ring structure is alternately inserted into the other's attachment gap, and a corresponding annular protrusion T1 and annular groove C1 are provided on the upper attachment portion 151B and the lower attachment portion 211B, which fit together and engage to provide a higher level of sealing and a stronger attachment effect.

[0032] In this embodiment, the sealing plug 3B is slidably connected to the bottom of the bottom cover cylinder 22B to seal the storage chamber 5B. The top end of the top pillar 14B is vertically connected to the lower part of the pressing part 11B of the top cover 1B, and its lower end is fixedly attached to the sealing plug 3B.

[0033] The sealing plug 3B in this embodiment includes a plug ring 31B, a plug surface 32B, a plug bottom 33B, and an engagement hole 34B. The connection relationship of each component of the sealing plug 3B in this embodiment is the same as that of each component of the sealing plug 2A in the first embodiment, and the connection relationship between the sealing plug 3B and the lower cover tube 22B is the same as that between the sealing plug 2A and the cover tube 15A, so that detailed description is omitted here. In response to this, an annular groove 341B is provided on the inner wall of the engagement hole 34B, and an annular protrusion 141B that fits into the annular groove 341B is provided on the outer wall of the top pillar 14B, thereby achieving a stronger and more stable insertion effect, and making it difficult for the sealing plug 3B to come off after the storage chamber 5B is opened. In some other embodiments, the structure in which the annular groove 341B and the annular protrusion 141B match may be reversed, that is, an annular protrusion is provided on the inner wall of the engagement hole 34B, and an annular groove is provided on the outer wall of the lower part of the top pillar 14B.

[0034] In addition, in this embodiment, in order to improve the sealing performance between the sealing plug 3B and the bottom cover cylinder 22B, an annular convex seal line 311B is integrally molded on the outer wall of the plug ring 31B so that the interference fit between the sealing plug 3B and the bottom cover cylinder 22B is formed by the elasticity of the injection molded product, and the diameter of the annular convex seal line 311B is slightly larger than the inner diameter of the bottom cover cylinder 22B, thereby achieving a better sealing effect.

[0035] In this embodiment, the bottom cap body 21B is integrally fitted to the outside of the bottom cap cylinder 22B, and a connection groove is formed between the bottom cap body 21B and the bottom cap cylinder 22B for inserting the mouth of the bottle and for fixed connection to the cap body. Also, a female thread 212B is provided on the inner wall of the bottom cap body 21B so that the mouth of the bottle can be easily inserted into the connection groove, and the male thread of the mouth of the bottle is screwed into the female thread 212B of the bottom cap body 21B.

[0036] In addition to Example 2, as one embodiment, as shown in Fig. 9, the bottom cover cylinder 22B is a straight barrel type, the inside diameter of which does not change along the axial direction, and the inner wall of the bottom of the bottom cover cylinder 22B is sealed and connected to the sealing plug 3B. The straight barrel type design allows a larger outlet to be formed after the sealing plug 3B is opened, and is suitable for solute particles and viscous liquids with large filling volume and poor fluidity, such as meal replacement powder, milk tea ingredients, honey, etc.

[0037] In another embodiment, the bottom cover cylinder 22B may be a funnel-shaped cylinder, in which the cross-sectional inner diameter gradually decreases and the inner wall of the bottom of the bottom cover cylinder 22B is sealed and connected to the sealing plug 3B, as shown in Fig. 10. The funnel-shaped design makes the outlet formed after the sealing plug 3B is opened look more beautiful, and is suitable for powdered solute particles or concentrated liquids with small filling volume and good flowability, such as freeze-dried tea powder, freeze-dried coffee powder, tea concentrate, coffee concentrate, etc.

[0038] In Example 2, in order to further enhance the sealing performance, a sealing film 4B is welded to the flush underside of the sealing plug 3B and the bottom cover tube 22B by ultrasonic or thermal melting process so as to cover the gap between the structural components, thereby achieving a seamless and better sealing effect.

[0039] The operation principle of the instant bottle cap of the second embodiment is as follows: first, the top cover 1B and the bottom cover 2B are assembled, and the top and bottom covers 151B and 211B are engaged and sealed together, and then an appropriate amount of solute is poured into the storage chamber 5B, and then the sealing plug 3B is sealed together with the inner wall of the bottom of the bottom cover cylinder 22B, sealing the solute into the storage chamber 5B, completing the assembly of the instant bottle cap. The operation method for attaching the instant bottle cap of the second embodiment and opening the storage chamber 5B is the same as that of the first embodiment, and detailed explanations are omitted here.

[0040] In the second embodiment, the top cap and the bottom cap are fixed and connected by a double-locking method, which can achieve the sealing requirements to a certain extent, but cannot meet the sealing requirements. For example, when mechanical vibration occurs between the top cap and the bottom cap, the connection point may cause leakage problems. Regarding the above problems, ultrasonic welding can achieve good sealing, but when the connection point of the top cap and the bottom cap is located in the center of the entire bottle cap, and the connection point of the top cap and the bottom cap is sealed and connected by ultrasonic welding, the welding spot is far away from the welding head, so the proximity welding is inconvenient, the welding efficiency and quality are poor, and the sealing performance of the entire instant bottle cap is unstable. Therefore, the present invention proposes a new mode of connection of the top cap and the bottom cap. EXAMPLES

[0041] Example 3 11 to 15, the instant bottle cap of this embodiment includes an upper lid 1C, a lower lid 2C, and a sealing plug 3C. The upper lid 1C, the lower lid 2C, and the sealing plug 3C surround each other to form a sealed storage chamber 5C.

[0042] Here, the top cover 1C includes a pressing part 11C, an elastic part 12C, a protective part 13C, a top pillar 14C, and a top cover cylinder 15C, which are integrally molded, and the protective part 13C protrudes upward to surround the pressing part 11C and the elastic part 12C to form a protective area that houses the pressing part 11C and the elastic part 12C, and the pressing part 11C is fixed and integrally connected via the elastic part 12C and the protective part 13C, and the height of the protective part 13C is greater than the height of the pressing part 11C to prevent erroneous contact of the pressing part 11C with an external force when not in use. The top pillar 14C is integrally provided below the pressing part 11C, and the top cover cylinder 15C is fixed to the bottom surface of the protective part 13C, and the top of the top cover 1C is closed and the lower end of the top cover cylinder 15C is open.

[0043] The bottom cover 2C comprises a bottom cover body 21C and a bottom cover cylinder 22C, the bottom cover 2C is a cylindrical structure that opens at the top and bottom, and the bottom cover body 21C is integrally fitted onto the outside of the bottom cover cylinder 22C. In this embodiment, the top cover 1C and the bottom cover 2C need to be sealed and fixedly connected, so that the top cover 1C, the bottom cover 2C and the sealing plug 3C surround the container chamber 5C.

[0044] In this embodiment, the method for forming the top cover 1C and the bottom cover 2C is ultrasonic welding, and specifically, in this embodiment, the tip of the bottom cover body 21C is extended upward to form a cylindrical structure, thereby increasing the volume of the storage chamber 5C. The inner wall of the bottom cover body 21C is connected to the outer wall of the top cover tube 15C, and the top surface of the bottom cover body 21C and the bottom surface of the protective part 13C are connected by ultrasonic welding.

[0045] According to the above embodiment, by inserting the upper lid tube 15C into the lower lid body 21C and abutting the outer wall of the upper lid tube 15C against the inner wall of the lower lid body 21C, radial positioning of the upper lid 1C and the lower lid 2C can be achieved, and by performing ultrasonic welding on the top surface of the protective portion 13C, the welding position is located at the top of the entire bottle, the inclination angle of the welding head can be reduced, and the distance between the ultrasonic welding head and the welding position can be reduced, thereby achieving proximity welding, improving welding efficiency and quality, and improving the overall sealing performance of the instant bottle cap.

[0046] In some preferred embodiments, an energy director 131C is integrally provided at the contact area between the bottom surface of the protective part 13C and the lower cover body 21C for use in ultrasonic welding, and the longitudinal section of the energy director 131C is triangular. In ultrasonic welding, the function of the energy director 131C is to concentrate the vibration energy at the tip of the triangle, and then form a uniform plastic melt at the entire welding interface by the accumulated heat, thereby increasing the strength of the weld, reducing welding defects, burrs, and amplitude, improving the completeness of the welded workpiece, and shortening the processing time.

[0047] The sealing plug 3C in this embodiment includes a plug ring 31C, a plug surface 32C, a plug bottom 33C, and an engagement hole 34C, and the connection relationship between the components of the sealing plug 3C in this embodiment is the same as that between the components of the sealing plug 3B in the embodiment 2, and the connection relationship between the sealing plug 3C and the bottom cover tube 22C is the same as that between the sealing plug 3B and the bottom cover tube 22B in the embodiment 2, and detailed explanations are omitted here. Accordingly, an annular protrusion 341C is provided on the inner wall of the engagement hole 34C, and an annular groove 141C that fits with the annular protrusion 341C is provided on the outer wall of the top pillar 14C, thereby providing a stronger and more stable insertion effect and making it difficult for the sealing plug 3C to come off after the storage chamber 5C is opened. In some other embodiments, the matching structure of the annular protrusion 341C and the annular groove 141C may be reversed, i.e., the annular groove is provided on the inner wall of the engagement hole 34C, and the annular protrusion is provided on the outer wall of the lower part of the top post 14C.

[0048] In addition, in this embodiment, in order to improve the sealing performance between the sealing plug 3C and the bottom cover tube 22C, an annular convex seal line 311C is integrally molded into the outer wall of the plug ring 31C so that the interference fit between the sealing plug 3C and the bottom cover tube 22C is formed by the elasticity of the injection molded product, and the diameter of the annular convex seal line 311C is slightly larger than the inner diameter of the bottom cover tube 22C, thereby achieving a better sealing effect.

[0049] In this embodiment, a sealing film 4C is welded to the flush lower surface of the sealing plug 3C and the bottom cover sleeve 22C by ultrasonic or thermal melting process to cover the gap between the structural members, thereby achieving a seamless and better sealing effect. Specifically, the sealing film 4C is a composite material with high barrier properties. Specifically, the sealing film 3C is a composite material with high barrier properties.

[0050] In this embodiment, the bottom cap body 21C is integrally fitted to the outside of the bottom cap cylinder 22C, and a mouth connection groove into which the mouth of the bottle is inserted and fixedly connected to the cap body is formed between the bottom cap body 21C and the bottom cap cylinder 22C. In addition, to facilitate the insertion of the mouth of the bottle into the mouth connection groove, a female thread 212C is provided on the inner wall of the bottom cap body 21C, and the male thread of the mouth of the bottle is screwed into the female thread 212C of the bottom cap body 21C.

[0051] The lower cover cylinder 22C in this embodiment can be a straight-body type or a funnel type that functions similarly to the lower cover cylinder 22B in the second embodiment.

[0052] In the third embodiment, the top lid 1C and the bottom lid 2C are sealed and connected by welding, and the sealing attachment method of the sealing plug 3C in the bottom lid 2C is the same as that in the second embodiment. In addition, the assembly of the instant bottle cap and the bottle and the opening method of the storage chamber 5C in the third embodiment are the same as those in the second embodiment, and therefore detailed explanations are omitted here.

Claims

1. The container has a lid body and a sealing plug, and the lid body and the sealing plug surround a sealed storage chamber, the lid body comprises an integrally molded pressing portion, an elastic portion, a protective portion, a top pillar, and a cover cylinder, the edge of the pressing portion extends outward to form the elastic portion, the edge of the elastic portion extends in a direction away from the storage chamber and protrudes to form the protective portion, the protective portion has a height greater than that of the pressing portion to prevent accidental contact with the pressing portion due to an external force when not in use, the top pillar is provided below the pressing portion, and its lower end is engaged with the sealing plug, the cover cylinder has a top integrally connected to the edge of the elastic portion, a bottom that is open, and is slidably and sealingly connected to the sealing plug to form the storage chamber, The instant bottle cap is characterized in that the pressing portion can deform the elastic portion and move it downward under the action of an external force, and the top post simultaneously moves the sealing plug downward, whereby the sealing plug is released from its connection with the bottom of the lid tube and the storage chamber is opened.

2. 2. The instant bottle cap according to claim 1, wherein the lid body further comprises a lid body provided on an outer periphery of the lid cylinder, a mouth connection groove is formed between the lid cylinder and the lid body, and a female thread is provided on an inner wall to be screwed into a male thread of a mouth of a bottle.

3. 3. The instant bottle cap according to claim 2, wherein the sealing plug comprises an integrally molded plug ring, a plug surface, a plug bottom, and a fastening hole, the plug ring is provided on the outer periphery of the plug surface, the plug ring is sealingly connected to the inner wall of the bottom of the cylindrical cover, the plug surface faces the containing chamber, the plug surface is provided with a fastening hole, the bottom of the top post is inserted into the fastening hole, the inner wall of the fastening hole is provided with an annular groove, the outer wall of the bottom of the top post is provided with an annular protrusion which engages with the annular groove, and the outer wall of the plug ring is provided with an integrally molded annular convex seal line, the diameter of the annular convex seal line is greater than the inner diameter of the cylindrical cover.

4. 2. The instant bottle cap according to claim 1, further comprising a sealing film made of a composite material with high barrier properties, the sealing film being coated on the lower surface flush with the sealing plug and the lid barrel by a thermal sealing or ultrasonic welding process.

5. The container has an upper lid, a lower lid, and a sealing plug, and the upper lid, the lower lid, and the sealing plug surround a sealed storage chamber, an annular protective portion that protrudes upward and surrounds the upper lid to form a protective region that accommodates the pressing portion and the arc-shaped flexible portion, and the annular protective portion has a height greater than that of the pressing portion; the sealing plug is removably sealed and connected to the bottom of the lower lid to seal the storage chamber; the top post is integrally provided below the pressing portion of the upper lid and has a lower end fixedly connected to the sealing plug; when the pressing portion is manually urged downward, the arc-shaped flexible portion deforms and moves downward, and the top post simultaneously moves the sealing plug downward, thereby causing the sealing plug to separate from the shielding of the lower lid tube and open the storage chamber, thus creating an instant bottle cap.

6. the lower lid comprises a lower lid body, a lower lid cylinder, and an annular lower attachment portion, the upper lid has a structure in which the top is closed and the lower end of the upper lid cylinder is open, the lower lid has a tubular structure that is open at the top and bottom, the lower lid body is integrally fitted into the lower lid cylinder, the upper lid and the lower lid are sealed and attached via their respective annular upper attachment portions and annular lower attachment portions, thereby surrounding and forming a storage chamber, 6. The instant bottle cap according to claim 5, wherein a double-annular upper fastening portion is provided at the lower end of the upper lid cylinder, a fastening gap is formed between the double rings of the upper fastening portion, a double-annular lower fastening portion is provided at the tip of the lower lid, a fastening gap is formed between the double rings of the lower fastening portion, the upper fastening portion and the lower fastening portion are alternately inserted into the fastening gap, annular protrusions and annular grooves are provided correspondingly on the upper fastening portion and the lower fastening portion, and the annular protrusions and the annular grooves fit together to form a sealed structure.

7. The bottom cap cylinder has a tubular structure that is open at the top and bottom, the bottom cap body is integrally fitted into the bottom cap cylinder, a mouth connection groove is formed between them, and a female thread is provided on the inner wall of the bottom cap body for connecting the mouth of the bottle, 7. The instant bottle cap according to claim 6, wherein the sealing plug has a plug ring, a plug surface, a plug bottom, and an attachment hole, the portion directly connected to the lower end of the inner wall of the bottom cover cylinder is the plug ring, one end facing the storage chamber is the plug surface, the sealing plug is tapered with an arc-shaped inclined surface, the attachment hole is provided at the tip of the tapered surface, the top post of the top cover is inserted into the attachment hole, and an annular protrusion and an annular groove are formed corresponding to the inner wall of the attachment hole and the outer wall of the top post.

8. The container has an upper lid, a lower lid, and a sealing plug, and the upper lid, the lower lid, and the sealing plug surround and thereby form a sealed storage chamber; the top lid comprises an integrally molded pressing portion, an elastic portion, a protective portion, a top lid cylinder, and a top pillar, the edge of the pressing portion extends outward to form the elastic portion, the edge of the elastic portion extends in a direction away from the storage chamber and protrudes to form the protective portion, the protective portion has a height greater than that of the pressing portion, the top pillar is provided below the pressing portion, and its lower end is engaged with the sealing plug, the inner side of the edge of the protective portion extends toward the storage chamber to form the top lid cylinder, the lower cover comprises a lower cover cylinder and a lower cover body, the lower cover cylinder is integrally fitted into the lower cover body, the bottom of the lower cover cylinder is attached to the sealing plug, the inner wall of the lower cover body is connected to the outer wall of the upper cover cylinder, the upper surface of the lower cover body abuts against the bottom surface of the protective part, and the connection points are sealed and connected by ultrasonic welding; The pressing portion can deform the elastic portion and move it downward under the action of an external force, and the top pillar simultaneously moves the sealing plug downward, whereby the sealing plug is released from its connection with the bottom of the lower cover tube and the storage chamber is opened.

9. An energy director is provided at a contact portion between the bottom surface of the protection part and the lower cover body, and the vertical cross section of the energy director is triangular, A mouth connection groove is formed between the bottom cap body and the bottom cap cylinder, and a female thread is provided on the inner wall of the bottom cap body to be screwed with a male thread of the mouth of the bottle, The sealing plug has an integrally molded plug ring, a plug surface, a plug bottom, and an attachment hole, the plug ring is provided on the outer periphery of the plug surface, the plug ring is sealingly connected to the inner wall of the bottom of the bottom cover cylinder, the plug surface faces the containing chamber, the attachment hole is provided on the plug surface, and the bottom of the plug is inserted into the attachment hole, The inner wall of the fastening hole is provided with an annular groove, and the outer wall of the bottom of the top pillar is provided with an annular protrusion, which is fastened to the annular groove; 9. The instant bottle cap according to claim 8, wherein an outer wall of the stopper ring is provided with an integrally molded annular convex seal line having a diameter larger than the inner diameter of the lid barrel.

10. The instant bottle cap according to claim 8, further comprising a sealing film which is made of a composite material with high barrier properties and is coated on the flush underside of the sealing plug and the bottom cover cylinder by a heat sealing or ultrasonic welding process so as to completely cover the structural gap between the sealing plug and the bottom of the bottom cover cylinder.

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