Storage lid and packaging container

Abstract

The application discloses a storage cover and a packaging container. The storage cover comprises an upper cover, a lower cover, an inner cover and a storage bin. A guide element is arranged in the upper cover. A first sealing film is arranged at the bottom opening of the storage bin, and a first sealing film opening element is arranged at the bottom edge of the storage bin. The storage bin is arranged in the upper cover, and the guide element is used for driving the storage bin to rotate and move downward. The inner cover is arranged in the lower cover. A second sealing film is arranged on the inner cover, and a second sealing film opening element is arranged at the edge of the second sealing film. The projection of the second sealing film on the vertical direction at least has a partially overlapped part with the first sealing film. When the upper cover is screwed, the storage bin rotates and moves downward under the guidance and driving of the guide element. The first sealing film opening element cuts the second sealing film along the edge of the second sealing film, and at the same time, the second sealing film opening element cuts the first sealing film along the edge of the first sealing film. The application solves the technical problems of the cover with a single sealed storage space, such as inconvenient opening and poor sealing.

Description

Technical Field

[0001] This invention relates to the field of food packaging, and more particularly to a storage lid and packaging container. Background Technology

[0002] Currently, a growing number of lids with individual, sealed storage compartments are appearing in the beverage market. Their working principle is as follows: basic ingredients (such as probiotics, vitamins, coffee liquid, or other functional ingredients in solid powder or concentrate) are filled into a lid with a separate sealed chamber to preserve their freshness. Below the lid, in a matching packaging container, is purified water or a base solution for mixing or dissolving the ingredients. To drink, the sealed chamber is opened using a mechanism within the lid, the basic ingredients are added to the base solution in the packaging container, and after thorough shaking, it is ready to drink. Beverages made in this way can contain little or no preservatives or other food additives, maintaining their taste, quality, and efficacy throughout their shelf life, benefiting the drinker's health and giving a sense of naturalness and sustainability. Furthermore, the process of opening the lid and completing the addition and consumption process provides consumers with a sense of accomplishment and control over the beverage preparation, greatly enhancing the consumer experience.

[0003] However, existing caps with this function are usually complex in structure. The chambers for storing basic raw materials after the caps are assembled have many gaps and poor sealing, which affects product quality and brings a poor experience to consumers.

[0004] There is currently no effective solution to the problems of inconvenient opening and poor sealing of lids with separate sealed storage spaces in related technologies.

[0005] Therefore, based on years of experience and practice in related industries, the inventor proposes a storage lid and packaging container to overcome the shortcomings of the prior art. Summary of the Invention

[0006] The purpose of this invention is to provide a storage lid and packaging container, which forms a separate, sealed storage space within the lid. This not only provides good sealing performance but also makes it easy to open the storage space, facilitating the entry of the basic raw materials inside into the packaging container.

[0007] The objective of this invention can be achieved through the following methods:

[0008] This invention provides a storage lid, wherein the storage lid comprises:

[0009] Bottom cover;

[0010] The upper cover is screwed onto the top opening of the lower cover, and a guide is provided inside the upper cover;

[0011] The storage compartment has a storage space for holding basic raw materials. A first sealing film is provided at the bottom opening of the storage compartment, and a first sealing film opening device is provided at the bottom edge of the storage compartment. The storage compartment is disposed inside the upper cover, and the guide is used to drive the storage compartment to rotate and move downward.

[0012] The inner cover is disposed inside the lower cover. A second sealing film is disposed on the inner cover. A second sealing film opening element is disposed on the edge of the second sealing film. The projection of the second sealing film and the first sealing film in the vertical direction has at least a partial overlap.

[0013] Twisting the top cover causes the storage compartment to rotate and move downward under the guidance of the guide member. The first sealing film opening member cuts the second sealing film along the edge of the second sealing film, and at the same time, the second sealing film opening member cuts the first sealing film along the edge of the first sealing film.

[0014] In a preferred embodiment of the present invention, an annular cutting portion is provided along the outer edge of the second sealing film, and the second sealing film is connected to the inner wall of the inner cover through the cutting portion, wherein the thickness of the cutting portion is less than the thickness of the second sealing film.

[0015] In a preferred embodiment of the present invention, the cutting part is provided with a cutting opening groove. In the initial assembly state, the second sealing film opening member abuts against the bottom edge of the first sealing film. The first sealing film opening member is located in the cutting opening groove. Taking the cutting opening groove as the starting position for cutting the second sealing film, the first sealing film opening member cuts the second sealing film around the cutting part and returns to the cutting opening groove. The cutting part located at the cutting opening groove remains connected to the inner wall of the inner cover.

[0016] In a preferred embodiment of the present invention, the first sealing film opening member is in the initial cutting state of the second sealing film. The first sealing film opening member and the second sealing film opening member are arranged opposite each other along the radial direction of the inner cover, so that the first sealing film opening member cuts the second sealing film around and returns to the cutting and opening groove state. The side of the second sealing film away from the cutting and opening groove is flipped downward. The second sealing film opening member is separated from the first sealing film. A connection position is left between the edge of the first sealing film and the bottom edge of the storage compartment.

[0017] In a preferred embodiment of the present invention, the guide is a cylindrical shape with an open bottom, and a first internal thread is provided on the inner wall of the guide. In the initial assembly state, the storage compartment is located inside the guide, and a first external thread that mates with the first internal thread is provided on the outer wall of the storage compartment.

[0018] An anti-rotation guide post is provided on the inner wall of the lower cover, and a one-way drive stop tooth is provided on the outer wall of the storage compartment. When the guide moves upward with the upper cover, one side of the anti-rotation guide post abuts against one side of the corresponding one-way drive stop tooth. The anti-rotation guide post and the corresponding one-way drive stop tooth cooperate to prevent the storage compartment from moving upward with the upper cover. The storage compartment rotates downward relative to the upper cover by the first internal thread and the first external thread.

[0019] In a preferred embodiment of the present invention, the anti-rotation guide post has at least a flat surface and an inclined surface opposite to the flat surface. When the top cover is screwed on, the one-way drive stop tooth rotates to a position that abuts against the flat surface of the anti-rotation guide post under the drive of the top cover, so as to limit the storage compartment as the top cover rotates; if the top cover is continued to be screwed on, the first internal thread will apply a force opposite to the rotation direction of the top cover and downward to the first external thread, so as to push the one-way drive stop tooth to rotate in the opposite direction and pass over the anti-rotation guide post by the inclined surface of the anti-rotation guide post, so as to make the storage compartment rotate and move downward relative to the top cover.

[0020] In a preferred embodiment of the present invention, the anti-rotation guide post is provided on the inner wall of the lower cover and extends vertically. There are multiple anti-rotation guide posts, which are arranged at intervals along the circumference of the lower cover. There are also multiple unidirectional drive teeth, which are arranged at intervals along the circumference of the storage compartment.

[0021] In a preferred embodiment of the present invention, at least one first positioning part is provided on the outer wall of the lower cover, and at least one second positioning part is provided on the inner wall of the upper cover. When the first sealing film and the second sealing film are in the open state, the first positioning part and the second positioning part cooperate to position the upper cover.

[0022] In a preferred embodiment of the present invention, the first positioning part includes a groove disposed on the outer wall of the lower cover, and the second positioning part includes a protrusion disposed on the inner wall of the upper cover, the protrusion being embedded in the groove to position the upper cover.

[0023] In a preferred embodiment of the present invention, an anti-theft ring is provided between the upper cover and the lower cover, the lower cover has a stepped shoulder, the top of the anti-theft ring is connected to the upper cover, and the bottom of the anti-theft ring is connected to the top surface of the shoulder.

[0024] In a preferred embodiment of the present invention, the lower cover has a stepped shoulder, and a locking protrusion is provided on the inner wall of the lower cover below the shoulder, and the inner cover is locked between the shoulder and the locking protrusion.

[0025] In a preferred embodiment of the present invention, a first sealing ring is provided on the top inner wall of the upper cover, which is opposite to the top position of the lower cover. In the initial assembly state, the first sealing ring is tightly fitted to the top of the lower cover.

[0026] In a preferred embodiment of the present invention, a second sealing ring is provided on the inner wall of the inner cover, and when the storage cover is placed over the opening of the packaging container, the second sealing ring can fit tightly against the opening of the packaging container.

[0027] In a preferred embodiment of the present invention, a second internal thread is provided on the inner wall of the upper cover, and a second external thread is provided on the upper outer wall of the lower cover. The upper cover and the lower cover are connected by the second internal thread and the second external thread.

[0028] In a preferred embodiment of the present invention, a third internal thread is provided on the inner wall of the inner cover. When the storage cover is placed over the opening of the packaging container, the storage cover and the packaging container are connected by the third internal thread engaging with the third external thread at the opening of the packaging container.

[0029] The present invention provides a packaging container, wherein the packaging container includes a container body and the aforementioned storage lid, the storage lid being disposed over the opening of the container body.

[0030] Based on the above, the features and advantages of the storage lid and packaging container of the present invention are:

[0031] 1. The upper cover is equipped with a storage compartment and a guide that can drive the storage compartment to rotate and move downwards. A storage space is formed inside the storage compartment, which can hold the basic raw materials that can mix and dissolve with the water or base solution in the packaging container. A first sealing film is provided at the bottom opening of the storage compartment to seal the storage space. An inner cover is provided inside the lower cover, and a second sealing film is provided on the inner cover. The first sealing film and the second sealing film provide a double sealing effect for the basic raw materials, ensuring that the basic raw materials are placed in a separate, sealed and well-sealed storage space, thereby achieving the requirements of aseptic filling.

[0032] II. Regarding the double-layer sealing structure of the first and second sealing films, a first sealing film opening component is provided at the bottom edge of the storage compartment, and a second sealing film opening component is provided at the edge of the second sealing film. During the screwing of the top cover, the first sealing film opening component cuts the second sealing film along its edge, and simultaneously, the second sealing film opening component cuts the first sealing film along its edge. The first and second sealing films can be cut simultaneously simply by screwing the top cover, thus enabling the double-layer sealing structure inside the cover to be opened at the same time. This makes the operation simpler and more convenient, ensuring that the basic raw materials can fall smoothly into the packaging container, greatly improving the consumer's user experience. Attached Figure Description

[0033] The accompanying drawings are intended only to illustrate and explain the present invention and do not limit the scope of the invention.

[0034] in:

[0035] Figure 1 : This is a front view of the storage lid of the present invention.

[0036] Figure 2 : This is a front cross-sectional view of the storage cover of the present invention.

[0037] Figure 3 : This is a front view of the upper cover of the storage cover of the present invention.

[0038] Figure 4 : This is a front cross-sectional view of the upper cover of the storage cover of the present invention.

[0039] Figure 5 : This is a front view of the storage compartment in the storage cover of the present invention.

[0040] Figure 6 : This is a front cross-sectional view of the storage compartment in the storage cover of the present invention.

[0041] Figure 7 : This is a top view of the storage compartment in the storage cover of the present invention.

[0042] Figure 8 : This is a front view of the lower cover of the storage cover of the present invention.

[0043] Figure 9 : This is a front cross-sectional view of the lower cover of the storage cover of the present invention.

[0044] Figure 10 : This is a front view of the inner cover of the storage cover of the present invention.

[0045] Figure 11 : This is a front cross-sectional view of the inner cover of the storage cover of the present invention.

[0046] Figure 12 : This is a front cross-sectional view of the storage lid of the present invention in the open state.

[0047] The reference numerals in the accompanying drawings of this invention are:

[0048] 1. Top cover; 101. Guide component;

[0049] 1011, First internal thread; 102, Second positioning part;

[0050] 103. First sealing ring; 104. Second internal thread;

[0051] 2. Lower cover; 201. Anti-rotation guide post;

[0052] 202. Shoulder; 203. Securing boss;

[0053] 204. Second external thread; 205. First positioning part;

[0054] 3. Inner cover; 301. Third internal thread;

[0055] 302. Second sealing ring; 4. Storage compartment;

[0056] 401. Storage space; 402. First external thread;

[0057] 403. First sealing film opening component; 404. One-way drive stop tooth;

[0058] 5. First sealing film; 6. Second sealing film;

[0059] 601. Second sealing film opening component; 602. Cutting section;

[0060] 603. Cutting and opening groove; 7. Anti-theft ring;

[0061] 8. Basic raw materials. Detailed Implementation

[0062] To provide a clearer understanding of the technical features, objectives, and effects of the present invention, specific embodiments of the present invention will now be described with reference to the accompanying drawings.

[0063] In this invention, terms such as "up," "down," "top," and "bottom," used to indicate direction, are all... Figure 2 The directions of up, down, top, and bottom are used as a reference, and will be explained here together.

[0064] Implementation Method 1

[0065] like Figures 1 to 12As shown, the present invention provides a storage cover, which includes an upper cover 1, a lower cover 2, a storage compartment 4, and an inner cover 3. The upper cover 1 is a vertically arranged cylindrical structure with a sealed top and an open bottom. The lower cover 2 is a vertically arranged cylindrical structure with an open top and an open bottom. The upper cover 1 is screwed onto the top opening of the lower cover 2. A guide member 101 is provided inside the upper cover 1, which is fixedly connected to the top inner wall of the upper cover 1. The storage compartment 4 has a storage space 401 for holding basic raw materials 8. A first sealing film 5 is provided at the bottom opening of the storage compartment 4, and a first sealing film opening member 403 is provided at the bottom edge of the storage compartment 4. The storage compartment 4 is disposed inside the upper cover 1, and by screwing the upper cover 1, the guide member 101 is rotated and moved upwards. In turn, the storage compartment 4 can be driven to rotate relative to the guide member 101. The inner cover 3 is fixedly installed inside the lower cover 2. The inner cover 3 is a circular cover body. A second sealing film 6 is provided on the inner cover 3. When the upper cover 1, lower cover 2, and inner cover 3 are assembled, the second sealing film 6 is used to close the space above the inner cover 3. A second sealing film opening member 601 is provided on the edge of the second sealing film 6. The projection of the second sealing film 6 and the first sealing film 5 in the vertical direction has at least a partial overlap (in an optional embodiment of the present invention, the projection of the second sealing film 6 and the first sealing film 5 in the vertical direction overlaps). By screwing the upper cover 1, the storage compartment 4 can rotate and move downward under the guiding drive of the guide member 101. The first sealing film opening member 403 cuts the second sealing film 6 along the edge of the second sealing film 6. At the same time, the second sealing film opening member 601 cuts the first sealing film 5 along the edge of the first sealing film 5.

[0066] In this invention, a storage compartment 4 and a guide 101 that can drive the storage compartment 4 to rotate and move downward are provided inside the upper cover 1. A storage space is formed inside the storage compartment 4, which can hold the base raw material 8 that can mix and dissolve with the water or base solution in the packaging container. A first sealing film 5 is provided at the bottom opening of the storage compartment 4 to seal the storage space. An inner cover 3 is provided inside the lower cover 2, and a second sealing film 6 is provided on the inner cover 3. The first sealing film 5 and the second sealing film 6 achieve a double sealing effect on the base raw material 8, ensuring that the base raw material 8 is placed in a separate, sealed storage space with good airtightness, thereby achieving the requirements of aseptic filling. This invention addresses the double-layer sealing structure of a first sealing film 5 and a second sealing film 6. A first sealing film opening element 403 is provided at the bottom edge of the storage compartment 4, and a second sealing film opening element 601 is provided at the edge of the second sealing film 6. During the upward rotation of the top cover 1, the first sealing film opening element 403 cuts the second sealing film 6 along its edge, while simultaneously, the second sealing film opening element 601 cuts the first sealing film 5 along its edge. Consumers can simultaneously cut the first and second sealing films 5 and 6 simply by rotating the top cover 1, thus opening the double-layer sealing structure within the cover simultaneously. This makes operation simpler and more convenient, ensuring that the basic raw material 8 can smoothly fall into the packaging container, greatly improving the consumer's user experience.

[0067] The inner diameter of the inner cap 3 in this invention is the same as that of the existing ordinary cap, which can meet the requirements of connecting with existing general packaging containers. It is not only widely applicable, but can also be used directly on existing beverage filling machines for cap sorting and sealing, and can be used directly in existing sterilization equipment to complete sterilization treatment, easily achieving aseptic filling.

[0068] In this invention, the first sealing film opening member 403 and the second sealing film opening member 601 may be, but are not limited to, a cutting blade for cutting the sealing film.

[0069] Furthermore, such as Figure 2 , Figure 12 As shown, both the first sealing film 5 and the second sealing film 6 are thin sheet structures arranged horizontally. The edge of the first sealing film 5 is sealed to the bottom of the storage compartment 4, and the edge of the second sealing film 6 is sealed to the inner wall of the inner cover 3. The connection between the first sealing film 5 and the storage compartment 4 can be, but is not limited to, heat sealing or ultrasonic welding; the connection between the second sealing film 6 and the inner cover 3 can also be, but is not limited to, heat sealing or ultrasonic welding. The first sealing film 5 and / or the second sealing film 6 can be made of, but is not limited to, aluminum foil. Alternatively, the first sealing film 5 can be integrally formed from the same material as the storage compartment 4, and the second sealing film 6 can also be integrally formed from the same material as the inner cover 3.

[0070] In an optional embodiment of the present invention, such as Figure 2 , Figure 11 , Figure 12 As shown, an annular cutting portion 602 is provided along the outer edge of the second sealing film 6. The second sealing film 6 is connected to the inner wall of the inner cover 3 through the cutting portion 602. The thickness of the cutting portion 602 is less than the thickness of the second sealing film 6. During the opening of the second sealing film 6, the first sealing film opening member 403 cuts along the cutting portion 602, thereby facilitating the opening of the second sealing film 6 by the first sealing film opening member 403.

[0071] Furthermore, such as Figure 2 , Figure 11 , Figure 12 As shown, a cutting and opening groove 603 recessed downwards from the top of the cutting part 602 is provided, which is recessed towards the second sealing film 6. In the initial assembly state (or the initial state in which the first sealing film opening member 403 cuts the second sealing film 6 and the second sealing film opening member 601 cuts the first sealing film 5), the second sealing film opening member 601 abuts against the bottom edge of the first sealing film 5, and the first sealing film opening member 403 is located in the cutting and opening groove 603. Taking the cutting and opening groove 603 as the starting position for cutting the second sealing film 6, the first sealing film opening member 403 cuts the second sealing film 6 around the cutting part 602 and returns to the cutting and opening groove 603. The cutting part 602 located in the cutting and opening groove 603 remains connected to the inner wall of the inner cover 3. The cutting groove 603 facilitates the initial cutting position of the first sealing film opening component 403 on the cutting part 602. During the opening of the second sealing film 6, the first sealing film opening component 403 will not cut the cutting part 602 at the cutting groove 603, thereby ensuring that the second sealing film 6 remains connected to the inner cover 3 when it is flipped open, and preventing the second sealing film 6 from falling off into the packaging container.

[0072] Furthermore, such as Figure 2 , Figure 11 , Figure 12 As shown, when the first sealing film opening member 403 starts cutting the second sealing film 6, the first sealing film opening member 403 and the second sealing film opening member 601 are arranged radially opposite each other along the inner cover 3, so that the first sealing film opening member 403 cuts the second sealing film 6 around and returns to the state of the cutting and opening groove 603. The side of the second sealing film 6 away from the cutting and opening groove 603 flips downward, and the second sealing film opening member 601 separates from the first sealing film 5. The second sealing film opening member 601 does not complete the full circle cut of the first sealing film 5. There is a connection position between the edge of the first sealing film 5 and the bottom edge of the storage compartment 4, so that the first sealing film 5 remains connected to the storage compartment 4 when it is flipped down and opened, thus preventing the first sealing film 5 from falling off into the packaging container.

[0073] In an optional embodiment of the present invention, such as Figure 2 , Figures 4 to 7 , Figure 9 , Figure 12 As shown, the guide member 101 is a vertically oriented cylindrical part with an open bottom. The top of the guide member 101 is connected to the inner wall of the top of the upper cover 1. The inner wall of the guide member 101 is provided with a first internal thread 1011. In the initial assembly state (without screwing the upper cover 1), the storage compartment 4 is located inside the guide member 101, and the outer wall of the storage compartment 4 is provided with a first external thread 402 that mates with the first internal thread 1011. At this time, the storage compartment 4 and the guide member 101 are connected by the first external thread 402 and the first internal thread 1011. Connection; an anti-rotation guide post 201 is provided on the inner wall of the lower cover 2, and a one-way drive stop tooth 404 is provided on the outer wall of the storage compartment 4. When the guide member 101 rotates and moves upward with the upper cover 1, one side of the anti-rotation guide post 201 abuts against one side of the corresponding one-way drive stop tooth 404. The anti-rotation guide post 201 and the corresponding one-way drive stop tooth 404 cooperate to prevent the storage compartment 4 from rotating and moving upward with the upper cover 1. Thus, through the cooperation of the first internal thread 1011 and the first external thread 402, the storage compartment 4 rotates and moves downward relative to the upper cover 1.

[0074] Furthermore, such as Figure 2 , Figure 4 , Figure 8 , Figure 9 , Figure 12 As shown, the inner wall of the upper cover 1 is provided with a second internal thread 104, and the upper outer wall of the lower cover 2 is provided with a second external thread 204. The upper cover 1 and the lower cover 2 are connected by the second internal thread 104 and the second external thread 204. The first internal thread 1011 and the first external thread 402 may be provided with a rotation direction opposite to that of the second internal thread 104 and the second external thread 204. Specifically, the anti-rotation guide post 201 has at least a flat surface and an inclined surface opposite to the flat surface. When the top cover 1 is screwed on, the one-way drive stop tooth 404 will rotate to a position where it abuts against the flat surface of the anti-rotation guide post 201 and then stop rotating. Thus, the flat surface of the anti-rotation guide post 201 can limit the storage compartment 4 as the top cover 1 rotates. When the top cover 1 is screwed on, since the first internal thread 1011 and the first external thread 402 have the opposite rotation direction to the second internal thread 104 and the second external thread 204, when the top cover 1 is rotated along the rotation direction of the second internal thread 104 and the second external thread 204, the first internal thread 1011 will apply a force to the first external thread 402 that is opposite to the rotation direction of the top cover 1 and downward, so as to push the one-way drive stop tooth 404 to rotate in the opposite direction and pass over the anti-rotation guide post 201 by the inclined surface of the anti-rotation guide post 201, so that the storage compartment 4 rotates and moves downward relative to the top cover 1.

[0075] Furthermore, the guide 101 and the upper cover 1 may be integrally formed, but are not limited to.

[0076] Furthermore, such as Figure 2 , Figures 5 to 7 , Figure 9 As shown, multiple anti-rotation guide posts 201 extending vertically are provided on the inner wall of the lower cover 2. The multiple anti-rotation guide posts 201 are evenly and spaced apart along the circumference of the lower cover 2. Multiple one-way drive teeth 404 are provided on the lower outer wall of the storage compartment 4. The multiple one-way drive teeth 404 are spaced apart and evenly arranged along the circumference of the storage compartment 4.

[0077] In an optional embodiment of the present invention, such as Figure 4 , Figure 8 As shown, at least one first positioning part 205 is provided on the outer wall of the lower cover 2, and at least one second positioning part 102 is provided on the inner wall of the upper cover 1. When the first sealing film 5 and the second sealing film 6 are in the open state (i.e., the first sealing film opening member 403 completes the cutting of the second sealing film 6, and the second sealing film opening member 601 completes the cutting of the first sealing film 5), the upper cover 1 rotates to the position where the first positioning part 205 and the second positioning part 102 cooperate, thereby positioning the upper cover 1 through the cooperation of the first positioning part 205 and the second positioning part 102. At this time, the consumer can confirm that the first sealing film 5 and the second sealing film 6 have been opened, and the basic raw material 8 in the storage space can fall into the packaging container.

[0078] In this embodiment, as Figure 4 , Figure 8 As shown, the first positioning part 205 includes a groove (with two ribs forming the groove between the two ribs) on the outer wall of the lower cover 2, and the second positioning part 102 includes a protrusion on the inner wall of the upper cover 1. When the first sealing film 5 and the second sealing film 6 are in the open state, the protrusion is embedded in the groove to achieve the purpose of positioning the upper cover 1.

[0079] In an optional embodiment of the present invention, such as Figures 1 to 4 , Figure 9 , Figure 12 As shown, an annular anti-theft ring 7 is provided between the upper cover 1 and the lower cover 2. The lower cover 2 has a stepped annular shoulder 202. The top of the anti-theft ring 7 is connected to the bottom edge of the upper cover 1 through multiple connection points, and the bottom of the anti-theft ring 7 is connected to the top surface of the shoulder 202 through multiple connection points. The anti-theft ring 7 fixes the upper cover 1 and the lower cover 2, ensuring a stable connection between the upper cover 1 and the lower cover 2 before the storage cover is opened.

[0080] In an optional embodiment of the present invention, such as Figure 2 , Figure 9 , Figure 12As shown, the lower cover 2 has a stepped annular shoulder 202. An annular locking protrusion 203 is provided on the inner wall of the lower cover 2 below the shoulder 202 along the circumference of the lower cover 2. The inner cover 3 can be locked between the shoulder 202 and the locking protrusion 203. The top edge of the inner cover 3 abuts against the inner wall of the shoulder 202, and the bottom edge of the inner cover 3 abuts against the top of the locking protrusion 203. Thus, the inner cover 3 and the lower cover 2 are fixed by the cooperation of the shoulder 202 and the locking protrusion 203.

[0081] In an optional embodiment of the present invention, such as Figure 2 , Figure 4 As shown, a first sealing ring 103 is provided on the inner top wall of the upper cover 1 along the circumference of the upper cover 1. The position of the first sealing ring 103 is opposite to the top position of the lower cover 2. When the upper cover 1, lower cover 2 and inner cover 3 are in the initial assembly state (i.e., the upper cover 1 is not screwed open), the first sealing ring 103 is tightly fitted with the top of the lower cover 2, thereby ensuring the sealing effect between the upper cover 1 and the lower cover 2. The first sealing ring 103 and the upper cover 1 can be integrally formed, but are not limited to being integrally formed.

[0082] In an optional embodiment of the present invention, such as Figure 2 , Figure 12 As shown, a second sealing ring 302 is provided on the top inner wall of the inner cover 3 along the circumference of the inner cover 3. When the storage cover is placed on the opening of the packaging container, the second sealing ring 302 can fit tightly with the opening of the packaging container, thereby ensuring the seal between the storage cover and the opening of the packaging container. The second sealing ring 302 and the inner cover 3 may be integrally formed, but are not limited to.

[0083] In an optional embodiment of the present invention, such as Figure 2 , Figure 11 , Figure 12 As shown, the inner wall of the inner cover 3 is provided with a third internal thread 301. When the storage cover is placed on the opening of the packaging container, the storage cover and the packaging container are connected by the third internal thread 301 and the third external thread at the opening of the packaging container.

[0084] During use, the storage cover of this invention:

[0085] First, the storage compartment 4 is filled with the basic raw material 8. The bottom opening of the storage compartment 4 is sealed with the first sealing film 5. Then, the storage compartment 4 is assembled with the guide 101 inside the upper cover 1 through a threaded structure. Next, the upper cover 1 and the lower cover 2 are assembled with a threaded structure. After the upper cover 1 and the lower cover 2 are assembled, the inner cover 3 is assembled into the lower cover 2 by pressing. The inner cover 3 is snapped and fixed inside the lower cover 2. When the upper cover 1, the lower cover 2 and the inner cover 3 are assembled, the second sealing film opening part 601 abuts against the bottom edge of the first sealing film 5. The first sealing film opening part 403 is located in the cutting opening groove 603, with the cutting opening groove 603 as the starting position for cutting the second sealing film 6. When opened, the consumer can directly twist the top cover 1 counterclockwise. Under the action of the threaded structure between the top cover 1 and the bottom cover 2, the top cover 1 rotates and moves upward (the connection point between the anti-theft ring 7 and the top cover 1 is disconnected). At this time, the guide 101 rotates and moves upward synchronously with the top cover 1. Under the action of the threaded structure (reverse thread) of the storage compartment 4 and the guide 101, the storage compartment 4 rotates in the opposite direction to the top cover 1 and moves downward. During the rotation and downward movement of the storage compartment 4, the first sealing film opening part 403 cuts the second sealing film 6 along the edge of the second sealing film 6. At the same time, the second sealing film opening part 601 cuts the first sealing film 5 along the edge of the first sealing film 5. When the protrusion on the inner wall of the top cover 1 is embedded in the groove on the outer wall of the bottom cover 2, the top cover 1 stops rotating. At this time, both the first sealing film 5 and the second sealing film 6 are cut and flipped downward. At this time, the basic raw material 8 in the storage compartment 4 falls downward into the packaging container below.

[0086] In one embodiment of the present invention, after the basic raw material 8 is added, the top cover 1 is continued to be screwed on. Due to the limiting effect between the protrusion and the groove, the bottom cover and the inner cover 3 will be moved upward synchronously with the top cover 1, and finally the storage cover will be separated from the packaging container. Consumers can drink the beverage in the packaging container directly through the opening of the packaging container.

[0087] In another embodiment of the present invention, no protrusion is provided on the inner wall of the upper cover 1 and no groove is provided on the outer wall of the lower cover 2. After the basic raw material 8 is added, continuing to twist the upper cover 1 will separate the upper cover 1 from the lower cover 2. At this time, the lower cover 2, the inner cover 3 and the storage compartment 4 will remain at the opening of the packaging container. Consumers can drink the beverage in the packaging container through the top opening of the lower cover 2.

[0088] The features and advantages of the storage lid of the present invention are:

[0089] 1. In this storage cover, a storage compartment 4 and a guide 101 that can drive the storage compartment 4 to rotate and move downward are provided inside the upper cover 1. A storage space is formed inside the storage compartment 4. The storage space can hold the basic raw materials that can be mixed and dissolved with the water or basic solution in the packaging container. A first sealing film 5 is provided at the bottom opening of the storage compartment 4 to seal the storage space. An inner cover 3 is provided inside the lower cover 2, and a second sealing film 6 is provided on the inner cover 3. The first sealing film 5 and the second sealing film 6 achieve a double sealing effect on the basic raw materials, ensuring that the basic raw materials are placed in a separate, sealed storage space with good airtightness, thereby achieving the requirements of aseptic filling.

[0090] II. Regarding the double-layer sealing structure of the first sealing film 5 and the second sealing film 6, the storage cover has a first sealing film opening element 403 at the bottom edge of the storage compartment 4 and a second sealing film opening element 601 at the edge of the second sealing film 6. During the screwing of the top cover 1, the first sealing film opening element 403 cuts the second sealing film 6 along the edge of the second sealing film 6. At the same time, the second sealing film opening element 601 cuts the first sealing film 5 along the edge of the first sealing film 5. The first sealing film 5 and the second sealing film 6 can be cut simultaneously by simply screwing the top cover 1, thereby opening the double-layer sealing structure inside the cover at the same time. The operation is simpler and the use is more convenient, ensuring that the basic raw materials can fall smoothly into the packaging container, greatly improving the consumer's user experience.

[0091] Third, the inner diameter of the inner cover 3 in the storage cover is the same as that of the existing ordinary cover, which can meet the requirements of connecting with existing general packaging containers. It is not only widely applicable, but can also be used directly on existing beverage filling machines for cap sorting and sealing, and can be used directly in existing sterilization equipment to complete sterilization treatment, easily achieving aseptic filling.

[0092] Implementation Method 2

[0093] The present invention provides a packaging container, which includes a container body and the aforementioned storage lid, the storage lid being disposed at the opening of the container body.

[0094] Furthermore, a third internal thread 301 is provided on the bottom inner wall of the storage lid (i.e., the third internal thread 301 on the inner wall of the inner lid 3), and a third external thread is provided on the outer wall of the top opening of the container body. The storage lid and the container body are connected by the third internal thread 301 and the third external thread.

[0095] Furthermore, the packaging container can be, but is not limited to, a bottle, or also a cup, box, or other container with an opening, as long as the opening of the packaging container can fit the storage lid.

[0096] The packaging container of the present invention has the same features and advantages as the storage lid described above, and will not be repeated here.

[0097] The above description is merely an illustrative embodiment of the present invention and is not intended to limit the scope of the invention. Any equivalent changes and modifications made by those skilled in the art without departing from the concept and principles of the present invention should fall within the scope of protection of the present invention.

Claims

1. A storage lid, characterized in that, The storage cover includes: Bottom cover; The upper cover is screwed onto the top opening of the lower cover, and a guide is provided inside the upper cover; The storage compartment has a storage space for holding basic raw materials. A first sealing film is provided at the bottom opening of the storage compartment, and a first sealing film opening device is provided at the bottom edge of the storage compartment. The storage compartment is disposed inside the upper cover, and the guide is used to drive the storage compartment to rotate and move downward. The inner cover is disposed inside the lower cover. A second sealing film is disposed on the inner cover. A second sealing film opening element is disposed on the edge of the second sealing film. The projection of the second sealing film and the first sealing film in the vertical direction has at least a partial overlap. Twisting the top cover causes the storage compartment to rotate and move downward under the guidance of the guide member. The first sealing film opening member cuts the second sealing film along the edge of the second sealing film, and at the same time, the second sealing film opening member cuts the first sealing film along the edge of the first sealing film. The guide is a cylindrical part with an open bottom. The inner wall of the guide is provided with a first internal thread. In the initial assembly state, the storage compartment is located inside the guide, and the outer wall of the storage compartment is provided with a first external thread that mates with the first internal thread. An anti-rotation guide post is provided on the inner wall of the lower cover, and a one-way drive stop tooth is provided on the outer wall of the storage compartment. When the guide member rotates upward with the upper cover, one side of the anti-rotation guide post abuts against one side of the corresponding one-way drive stop tooth. The anti-rotation guide post and the corresponding one-way drive stop tooth cooperate to prevent the storage compartment from rotating upward with the upper cover. The first internal thread and the first external thread cooperate to make the storage compartment rotate downward relative to the upper cover. The anti-rotation guide post has at least a flat surface and an inclined surface opposite to the flat surface. When the top cover is screwed on, the one-way drive stop tooth rotates to a position that abuts against the flat surface of the anti-rotation guide post under the drive of the top cover, so as to limit the storage compartment as the top cover rotates. When the top cover is screwed on, the first internal thread will apply a force opposite to the rotation direction of the top cover and downward to the first external thread, so as to push the one-way drive stop tooth to rotate in the opposite direction and pass over the anti-rotation guide post by the inclined surface of the anti-rotation guide post, so as to make the storage compartment rotate and move downward relative to the top cover.

2. The storage lid as described in claim 1, characterized in that, An annular cutting portion is provided along the outer edge of the second sealing film. The second sealing film is connected to the inner wall of the inner cover through the cutting portion. The thickness of the cutting portion is less than the thickness of the second sealing film.

3. The storage lid as described in claim 2, characterized in that, The cutting part is provided with a cutting and opening groove. In the initial assembly state, the second sealing film opening member abuts against the bottom edge of the first sealing film. The first sealing film opening member is located in the cutting and opening groove. Taking the cutting and opening groove as the starting position for cutting the second sealing film, the first sealing film opening member cuts the second sealing film around the cutting part and returns to the cutting and opening groove. The cutting part located at the cutting and opening groove remains connected to the inner wall of the inner cover.

4. The storage lid as described in claim 3, characterized in that, The first sealing film opening component initiates a cutting state on the second sealing film. The first sealing film opening component and the second sealing film opening component are arranged radially opposite to each other along the inner cover, so that the first sealing film opening component cuts the second sealing film around and returns to the cutting and opening groove state. The side of the second sealing film away from the cutting and opening groove flips downward, and the second sealing film opening component separates from the first sealing film. A connection position is left between the edge of the first sealing film and the bottom edge of the storage compartment.

5. The storage lid as described in claim 1, characterized in that, The anti-rotation guide post is provided on the inner wall of the lower cover and extends vertically. There are multiple anti-rotation guide posts, which are arranged at intervals along the circumference of the lower cover. There are also multiple unidirectional drive teeth, which are arranged at intervals along the circumference of the storage compartment.

6. The storage lid as described in claim 1, characterized in that, The outer wall of the lower cover is provided with at least one first positioning part, and the inner wall of the upper cover is provided with at least one second positioning part. When the first sealing film and the second sealing film are in the open state, the first positioning part and the second positioning part cooperate to position the upper cover.

7. The storage lid as described in claim 6, characterized in that, The first positioning part includes a groove on the outer wall of the lower cover, and the second positioning part includes a protrusion on the inner wall of the upper cover. The protrusion is embedded in the groove to position the upper cover.

8. The storage lid as described in claim 1, characterized in that, An anti-theft ring is provided between the upper cover and the lower cover. The lower cover has a stepped shoulder. The top of the anti-theft ring is connected to the upper cover, and the bottom of the anti-theft ring is connected to the top surface of the shoulder.

9. The storage lid as described in claim 1, characterized in that, The lower cover has a stepped shoulder, and a locking protrusion is provided on the inner wall of the lower cover below the shoulder. The inner cover is locked between the shoulder and the locking protrusion.

10. The storage lid as claimed in claim 1, characterized in that, The top inner wall of the upper cover is provided with a first sealing ring that is opposite to the top of the lower cover. In the initial assembly state, the first sealing ring is tightly fitted to the top of the lower cover.

11. The storage lid as claimed in claim 1, characterized in that, A second sealing ring is provided on the inner wall of the inner cover. When the storage cover is placed over the opening of the packaging container, the second sealing ring can fit tightly against the opening of the packaging container.

12. The storage lid as claimed in claim 1, characterized in that, The upper cover has a second internal thread on its inner wall, and the lower cover has a second external thread on its upper outer wall. The upper cover and the lower cover are connected by the second internal thread and the second external thread.

13. The storage lid as described in claim 1, characterized in that, The inner wall of the inner cover is provided with a third internal thread. When the storage cover is placed on the opening of the packaging container, the storage cover and the packaging container are connected by the third internal thread and the third external thread at the opening of the packaging container.

14. A packaging container, characterized in that, The packaging container includes a container body and a storage lid as described in any one of claims 1 to 13, the storage lid being disposed over the opening of the container body.

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