Fresh-locking packaging cover and packaging container

Abstract

The utility model relates to a fresh-keeping packaging cover and a packaging container, the fresh-keeping packaging cover comprises an upper cover body, a lower cover body and an anti-theft ring, and the anti-theft ring is connected with the bottom edge of the upper cover body through a plurality of connecting points; the periphery of the lower cover body is sleeved with the anti-theft ring, a limiting boss is arranged on the outer wall of the lower cover body, a first limiting protruding block is arranged on the inner wall of the anti-theft ring, and the first limiting protruding block abuts against the limiting boss to axially limit the anti-theft ring; a limiting groove is formed in the outer wall of the lower cover body, one end of the limiting groove is provided with a first limiting end face, a second limiting protruding block is arranged on the inner wall of the anti-theft ring, a second limiting end face is formed on one side of the second limiting protruding block, and the second limiting end face abuts against the first limiting end face so that the anti-theft ring can be limited in the circumferential direction. The anti-theft ring is limited in the axial direction and the circumferential direction, so that the anti-theft ring can be quickly disconnected when the upper cover is screwed, and quick opening and normal use of the freshness-locking packaging cover are guaranteed.

Description

Technical Field

[0001] The utility model relates to the technical field of food packaging. Further, it relates to a fresh-keeping packaging lid and a packaging container, and particularly to a fresh-keeping packaging lid and a packaging container with a breakable anti-theft ring that can be quickly disconnected. Background Art

[0002] At present, there is a lid with a separate airtight storage space in the beverage market. Its working principle is as follows: By setting a sealing film inside the lid, an independent and airtight storage space is formed inside the lid. Materials (such as solid powders, concentrated liquids, drugs, probiotics, etc.) are filled into the storage space to achieve the storage and freshness preservation of the materials. A container that matches the lid and is located below the lid contains pure water or a basic solution for mixing with or dissolving the materials. When drinking, the sealing film is cut and opened through a film cutting structure arranged inside the lid, so as to open the storage space, and the materials are put into the lower container. After fully shaking, it can be directly drunk.

[0003] To ensure the stability of the lid installation and play a role in sealing and leakage prevention, an anti-theft ring is provided between the lid and the packaging container. During the process of opening the lid, since the anti-theft ring is stressed circumferentially when the lid is screwed, the connection point between the anti-theft ring and the connection position breaks, and the anti-theft ring remains on the packaging container. Currently, during the process of opening the lid, there is a situation where the anti-theft ring rotates synchronously with the lid at a certain rotation angle, and it is necessary to increase the screwing angle of the lid to make the connection point between the anti-theft ring and the connection position break, which affects the use experience of consumers. For the above-mentioned lid with a separate airtight storage space, the delayed breakage of the anti-theft ring may directly affect the opening of the sealing film by the film cutting structure and affect the normal use of the product. In addition, if the connection point between the anti-theft ring and the lid cannot break in time, during the process of screwing the lid upward, the anti-theft ring will also move upward with the lid, hindering the normal opening of the lid.

[0004] Therefore, the utility model provides a fresh-keeping packaging lid and a packaging container to overcome the defects of the prior art. Summary of the Utility Model

[0005] The purpose of the utility model is to provide a fresh-keeping packaging lid and a packaging container, which can realize the double limit of the circumferential and axial directions of the anti-theft ring during the process of opening the lid, ensure that the connection point between the anti-theft ring and the lid can be quickly disconnected when the lid is screwed, avoid the influence of the anti-theft ring on the opening of the lid, and improve the use experience of consumers.

[0006] The purpose of the utility model can be achieved by the following solutions:

[0007] The utility model provides a fresh-keeping packaging lid, and the fresh-keeping packaging lid includes:

[0008] A lower cover body, the lower cover body being cylindrical and configured to be disposed at an opening of a packaging container body;

[0009] An upper cover body, the upper cover body being screwed onto the top of the lower cover body;

[0010] An anti-theft ring, the anti-theft ring being located below the upper cover body, and the top of the anti-theft ring being connected to the bottom edge of the upper cover body through a plurality of connection points distributed at intervals;

[0011] The anti-theft ring is sleeved on the outer periphery of the lower cover body. A limiting boss is provided on the outer wall of the lower cover body, and a first limiting bump is provided on the inner wall of the anti-theft ring. When the upper cover body and the lower cover body are in a closed state, the first limiting bump is located below the limiting boss, and the top of the first limiting bump abuts against the bottom of the limiting boss to axially limit the anti-theft ring; A limiting groove extending along the circumferential direction of the lower cover body is provided on the outer wall of the lower cover body. One end of the limiting groove has a first limiting end face. A second limiting bump is provided on the inner wall of the anti-theft ring. A second limiting end face is formed on one side of the second limiting bump. When the upper cover body and the lower cover body are in a closed state, the second limiting bump is located in the limiting groove, and the second limiting end face abuts against the first limiting end face to circumferentially limit the anti-theft ring.

[0012] In a preferred embodiment of the present utility model, the limiting boss is a convex ring provided on the outer wall of the lower cover body along the circumferential direction of the lower cover body, and the first limiting bump is a strip-shaped protrusion extending along the circumferential direction of the anti-theft ring. When the upper cover body and the lower cover body are in a closed state, the first limiting bump and the limiting boss are vertically aligned and matched so that the top of the first limiting bump abuts against the bottom of the limiting boss.

[0013] In a preferred embodiment of the present utility model, the number of the first limiting bumps is multiple, and the multiple first limiting bumps are distributed at intervals along the circumferential direction of the anti-theft ring.

[0014] In a preferred embodiment of the present utility model, the number of the second limiting bumps is multiple, and the multiple second limiting bumps are distributed at intervals along the circumferential direction of the anti-theft ring;

[0015] Along the circumferential direction of the anti-theft ring, the multiple first limiting bumps and the multiple second limiting bumps are alternately arranged.

[0016] In a preferred embodiment of the present utility model, the limiting groove is a long strip-shaped groove extending along the circumferential direction of the lower cover body. Along the circumferential direction of the lower cover body, the limiting groove has a first end and a second end. The first end is an inlet end for the second limiting convex block to slide into, and the first limiting end face is located at the second end.

[0017] In a preferred embodiment of the present utility model, along the axial direction of the lower cover body, the limiting boss is located above the limiting groove, and the bottom of the limiting boss forms the top groove edge of the limiting groove. When the upper cover body and the lower cover body are in a closed state, both the first limiting convex block and the second limiting convex block are located in the limiting groove.

[0018] In a preferred embodiment of the present utility model, an outwardly convex shoulder is formed on the side wall of the lower cover body along its circumferential direction. The anti-theft ring is located between the upper cover body and the shoulder, and the bottom of the anti-theft ring is close to or in contact with the shoulder.

[0019] In a preferred embodiment of the present utility model, a sealing diaphragm for blocking the middle cavity of the lower cover body is arranged inside the lower cover body, so as to form a storage cavity for storing materials by enclosing between the upper cover body, the lower cover body and the sealing diaphragm;

[0020] A diaphragm cutter capable of moving up and down is arranged in the storage cavity. A driving mechanism for screwing the upper cover body to drive the diaphragm cutter to move downwards is arranged between the diaphragm cutter and the upper cover body; when the upper cover body is in a state of being screwed and lifted upwards, the driving mechanism can drive the diaphragm cutter to move downwards, so that the cutting teeth at the bottom of the diaphragm cutter cut open the sealing diaphragm.

[0021] In a preferred embodiment of the present utility model, the driving mechanism includes a plurality of driving convex blocks arranged on the diaphragm cutter and a plurality of driving blades arranged on the inner wall of the top of the upper cover body and extending downwards. The plurality of driving blades and the plurality of driving convex blocks are vertically corresponding to each other; the cross-section of the driving blade gradually decreases from the direction close to the top of the upper cover body to the direction far from the top of the upper cover body, so that the driving blade forms an arc-shaped or inclined straight-side edge;

[0022] When the upper cover body is in a state of being screwed and lifted upwards, the side edge of the driving blade abuts against the driving convex block at the corresponding position and pushes the driving convex block to move downwards along the side edge of the driving blade to the bottom of the driving blade, so as to push the diaphragm cutter to move downwards and cut open the sealing diaphragm along the edge of the sealing diaphragm.

[0023] In a preferred embodiment of the present utility model, a guiding mechanism for guiding the downward movement position of the diaphragm cutter is provided between the diaphragm cutter and the inner wall of the lower cover body. The guiding mechanism includes a guiding track provided on the outer wall of the diaphragm cutter and a guiding protrusion provided on the inner wall of the lower cover body. The guiding protrusion is slidably embedded in the guiding track.

[0024] In a preferred embodiment of the present utility model, the diaphragm cutter is in a vertically arranged cylindrical shape with openings at both ends, and the cutting teeth are arranged along the circumferential direction of the diaphragm cutter on the bottom edge of the diaphragm cutter.

[0025] At least one blanking hole communicating the outside and the inside of the diaphragm cutter is provided on the diaphragm cutter.

[0026] In a preferred embodiment of the present utility model, during the process from the start of rotation of the upper cover body to the cutting of the diaphragm cutter coming into contact with the top surface of the sealing diaphragm and cutting occurs, the upper cover body rotates a first angle; during the process from the start of rotation of the upper cover body to all the connection points between the anti-theft ring and the upper cover body being broken, the upper cover body rotates a second angle, wherein the first angle is greater than the second angle.

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

[0028] In a preferred embodiment of the present utility model, a second internal thread is provided on the inner wall of the lower cover body, and the lower cover body is used to be connected with a second external thread on the packaging container main body by the second internal thread.

[0029] The present utility model provides a packaging container, which includes a container main body and the above-mentioned freshness-keeping packaging cover, and the freshness-keeping packaging cover is covered on the opening of the container main body.

[0030] As described above, the characteristics and advantages of the freshness-keeping packaging cover and the packaging container of the present utility model are:

[0031] A theft-proof ring is provided below the upper cover body. The top of the theft-proof ring is connected to the bottom edge of the upper cover body through multiple connection points. The theft-proof ring ensures the stability of the upper cover body when it is covered, playing a role in sealing and preventing leakage. And a first limiting protrusion and a second limiting protrusion are provided on the inner wall of the theft-proof ring. Correspondingly, a limiting boss and a limiting groove are provided on the outer wall of the lower cover body. When the upper cover body and the lower cover body are in a closed state, the theft-proof ring is axially limited by the cooperation of the first limiting protrusion and the limiting boss, and the theft-proof ring is circumferentially limited by the cooperation of the first limiting end surface in the limiting groove and the second limiting end surface on the second limiting protrusion. Furthermore, a dual axial and circumferential limiting function for the theft-proof ring is achieved. Thus, when the upper cover body is screwed, the connection points between the theft-proof ring and the upper cover body can be quickly disconnected (i.e., quickly broken), which can avoid the influence of the setting of the theft-proof ring on the opening of the upper cover body and improve the user experience of consumers. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] The following drawings are only intended to illustrate and explain the present utility model schematically and do not limit the scope of the present utility model. Among them:

[0033] Figure 1 : is the front view of the fresh-keeping packaging cover of the present utility model.

[0034] Figure 2 : is the front cross-sectional view of the fresh-keeping packaging cover of the present utility model.

[0035] Figure 3 : is the bottom view of the fresh-keeping packaging cover of the present utility model.

[0036] Figure 4 : is the three-dimensional view of the upper cover body in the fresh-keeping packaging cover of the present utility model.

[0037] Figure 5 : is Figure 4 the partial enlarged view of position A in

[0038] Figure 6 : is the front view of the upper cover body in the fresh-keeping packaging cover of the present utility model.

[0039] Figure 7 : is the front cross-sectional view of the upper cover body in the fresh-keeping packaging cover of the present utility model.

[0040] Figure 8 : is the bottom view of the upper cover body in the fresh-keeping packaging cover of the present utility model.

[0041] Figure 9 : is the three-dimensional view of the lower cover body in the fresh-keeping packaging cover of the present utility model.

[0042] Figure 10 : is the partial enlarged view of position B in 9.

[0043] Figure 11 : This is the front view of the lower cover body in the fresh-keeping packaging lid of the present utility model.

[0044] Figure 12 : This is the front sectional view of the lower cover body in the fresh-keeping packaging lid of the present utility model.

[0045] Figure 13 : This is the bottom view of the lower cover body in the fresh-keeping packaging lid of the present utility model.

[0046] The reference numerals in the present utility model are as follows:

[0047] 1. Upper cover body; 101. Driving blade;

[0048] 102. First internal thread; 2. Lower cover body;

[0049] 201. Second internal thread; 202. First external thread;

[0050] 203. Limiting boss; 204. Limiting groove;

[0051] 2041. First limiting end face; 205. Shoulder;

[0052] 206. Guide projection; 3. Anti-theft ring;

[0053] 301. First limiting projection; 302. Second limiting projection;

[0054] 3021. Second limiting end face; 4. Diaphragm cutter;

[0055] 401. Cutting teeth; 402. Driving projection;

[0056] 403. Blanking hole; 5. Sealing diaphragm;

[0057] 6. Storage chamber. Detailed implementation manners

[0058] Next, the technical solutions of the present utility model will be described in detail in combination with the accompanying drawings and specific embodiments. It should be understood that these embodiments are only used to illustrate the present utility model and not to limit the scope of the present utility model. After reading the present utility model, various equivalent modifications made by those skilled in the art to the present utility model all fall within the scope defined by the appended claims of this application.

[0059] It should be noted that when an element is referred to as being "disposed on" another element, it can be directly on the other element or there may also be an intermediate element. When an element is considered to be "connected" to another element, it can be directly connected to the other element or there may be an intermediate element at the same time.

[0060] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terms used in the specification of this application are only for the purpose of describing specific embodiments and are not intended to limit this application. The term "and / or" used herein includes any and all combinations of one or more of the related listed items.

[0061] As used herein, the terms "upper", "lower", "top", "bottom", "inner", "outer" and similar directional expressions are all based on the directions of "upper", "lower", "top", "bottom", "inner", "outer", etc. in Figure 2 Hereby it is explained together that it is only to more clearly and explicitly clarify the structure of the freshness-keeping packaging lid of this application and does not represent the only embodiment.

[0062] Embodiment 1

[0063] As Figures 1 to 13 shown, the present utility model provides a freshness-keeping packaging lid, which includes: a lower cover body 2, the lower cover body 2 is in a cylindrical shape with an open top and an open bottom in the vertical direction, and the lower cover body 2 is used to be arranged at the opening of the packaging container body; an upper cover body 1, the upper cover body 1 is in a cylindrical shape with a sealed top and an open bottom in the vertical direction, and the upper cover body 1 is screwed and covered on the top of the lower cover body 2; an anti-theft ring 3, the anti-theft ring 3 is located below the upper cover body 1, and the top of the anti-theft ring 3 is connected to the bottom edge of the upper cover body 1 through a plurality of connection points distributed at intervals; the anti-theft ring 3 is sleeved on the outer periphery of the lower cover body 2, a limiting boss 203 is arranged on the outer wall of the lower cover body 2, and a first limiting protrusion 301 is arranged on the inner wall of the anti-theft ring 3. When the upper cover body 1 and the lower cover body 2 are in a closed state, the first limiting protrusion 301 is located below the limiting boss 203, and the top of the first limiting protrusion 301 abuts against the bottom of the limiting boss 203, so as to axially limit the anti-theft ring 3 through the cooperation of the first limiting protrusion 301 and the limiting boss 203; in addition, a limiting groove 204 extending along the circumferential direction of the lower cover body 2 is arranged on the outer wall of the lower cover body 2, one end of the limiting groove 204 has a first limiting end face 2041, a second limiting protrusion 302 is arranged on the inner wall of the anti-theft ring 3, and a second limiting end face 3021 is formed on one side of the second limiting protrusion 302. When the upper cover body 1 and the lower cover body 2 are in a closed state, the second limiting protrusion 302 is located in the limiting groove 204, and the second limiting end face 3021 abuts against the first limiting end face 2041, so as to circumferentially limit the anti-theft ring 3 through the cooperation of the first limiting end face 2041 in the limiting groove 204 and the second limiting end face 3021 on the second limiting protrusion 302.

[0064] In the present utility model, an anti-theft ring 3 is provided below the upper cover body 1. The top of the anti-theft ring 3 is connected to the bottom edge of the upper cover body 1 through a plurality of connection points. The anti-theft ring 3 ensures the stability of the covering of the upper cover body 1 and plays a role in sealing and preventing leakage. Moreover, a first limiting convex block 301 and a second limiting convex block 302 are provided on the inner wall of the anti-theft ring 3. Correspondingly, a limiting convex platform 203 and a limiting groove 204 are provided on the outer wall of the lower cover body 2. When the upper cover body 1 and the lower cover body 2 are in a closed state, the first limiting convex block 301 and the limiting convex platform 203 cooperate to axially limit the anti-theft ring 3, and the first limiting end face 2041 in the limiting groove 204 and the second limiting end face 3021 on the second limiting convex block 302 cooperate to circumferentially limit the anti-theft ring 3, thereby achieving the dual axial and circumferential limiting functions for the anti-theft ring 3. Thus, when the upper cover body 1 is screwed, the connection points between the anti-theft ring 3 and the upper cover body 1 can be quickly disconnected (i.e., quickly broken bridge), which can avoid the influence of the setting of the anti-theft ring 3 on the opening of the upper cover body 1 and improve the use experience of consumers.

[0065] In an alternative embodiment of the present utility model, as Figure 2 、 Figure 4 、 Figure 5 、 Figure 7 、 Figures 9 to 13 shown, the limiting convex platform 203 is a convex ring provided on the outer wall of the lower cover body 2 along the circumferential direction of the lower cover body 2. The first limiting convex block 301 is a strip-shaped protrusion extending along the circumferential direction of the anti-theft ring 3. When the upper cover body 1 and the lower cover body 2 are in a closed state, the first limiting convex block 301 and the limiting convex platform 203 are vertically aligned and cooperate so that the top of the first limiting convex block 301 abuts against the bottom of the limiting convex platform 203. After the connection points between the anti-theft ring 3 and the upper cover body 1 are disconnected, the limiting convex platform 203 can axially limit the anti-theft ring 3 below the limiting convex platform 203 to prevent the anti-theft ring 3 from moving together with the upper cover body 1.

[0066] Furthermore, as Figure 4 、 Figure 7 shown, the number of the first limiting convex blocks 301 is multiple, and the multiple first limiting convex blocks 301 are spaced and evenly distributed along the circumferential direction of the anti-theft ring 3 to ensure uniform force on the anti-theft ring 3 in the axial direction and achieve a stable limiting effect.

[0067] Furthermore, as Figure 3 、 Figure 4 、 Figure 7 、 Figure 8 shown, the number of the second limiting convex blocks 302 is multiple, and the multiple second limiting convex blocks 302 are spaced along the circumferential direction of the anti-theft ring 3; along the circumferential direction of the anti-theft ring 3, the multiple first limiting convex blocks 301 and the multiple second limiting convex blocks 302 are alternately arranged.

[0068] Further, as Figures 9 to 13 shown, the limiting groove 204 is a long strip-shaped groove extending along the circumferential direction of the lower cover body 2. Along the circumferential direction of the lower cover body 2, the limiting groove 204 has a first end and a second end. The first end is the entrance end for the second limiting protrusion 302 to slide into. The first limiting end face 2041 is located at the second end. When assembling the anti-theft ring 3, the second limiting protrusion 302 on the anti-theft ring 3 can enter the limiting groove 204 from the first end to the position where the first limiting end face 2041 abuts against the second limiting end face 3021 in cooperation. When the upper cover body 1 is rotated upward, the cooperation between the first limiting end face 2041 and the second limiting end face 3021 restricts the anti-theft ring 3 from rotating with the upper cover body 1. Therefore, under the action of the shearing force, the purpose of quickly cutting off (i.e., breaking the bridge) each connection point between the anti-theft ring 3 and the upper cover body 1 can be achieved.

[0069] Further, as Figure 8 、 Figure 9 shown, along the axial direction of the lower cover body 2, the limiting boss 203 is located above the limiting groove 204. The bottom of the limiting boss 203 forms the top groove edge of the limiting groove 204. When the upper cover body 1 and the lower cover body 2 are in the closed state, both the first limiting protrusion 301 and the second limiting protrusion 302 are located in the limiting groove 204. The limiting boss 203 and the limiting groove 204 can be integrally formed to cooperate with the anti-theft ring 3 to achieve double circumferential and axial limiting of the anti-theft ring 3.

[0070] In an alternative embodiment of the present invention, as Figure 1 、 Figure 2 、 Figures 9 to 12 shown, an outwardly convex circular stepped shoulder 205 is formed along the circumferential direction on the side wall of the lower cover body 2. The anti-theft ring 3 is located between the upper cover body 1 and the shoulder 205, and the bottom of the anti-theft ring 3 is close to or in contact with the shoulder 205.

[0071] In an alternative embodiment of the present invention, as Figure 2 、 Figure 3 、 Figure 7 、 Figure 8 、 Figure 12As shown in the figure, a sealing diaphragm 5 is provided inside the lower cover body 2 to block the middle cavity of the lower cover body 2. The sealing diaphragm 5 divides the middle cavity of the lower cover body 2 into an upper space and a lower space in the vertical direction, so as to form a storage chamber 6 for storing materials between the upper cover body 1, the lower cover body 2 and the sealing diaphragm 5; a diaphragm cutter 4 capable of moving up and down is arranged in the storage chamber 6, and a driving mechanism for screwing the upper cover body 1 to drive the diaphragm cutter 4 to move down is arranged between the diaphragm cutter 4 and the upper cover body 1; when the upper cover body 1 is in the state of being screwed and lifted, the driving mechanism can drive the diaphragm cutter 4 to rotate and move down, so that the cutting teeth 401 at the bottom of the diaphragm cutter 4 cut open the sealing diaphragm 5. In the present utility model, a storage chamber 6 is formed in the fresh-keeping packaging cover, and a sealing diaphragm 5 for sealing the storage chamber 6 is arranged at the bottom of the storage chamber 6. During the opening process, only by screwing the upper cover body 1 can the driving mechanism drive the diaphragm cutter 4 to rotate circumferentially and move down at the same time, so as to cut and open the sealing diaphragm 5, so that the materials in the storage chamber 6 can sequentially pass through the bottom opening of the lower cover body 2 and the opening on the packaging container and fall into the packaging container. During the whole process, only by screwing the upper cover body 1 can the materials be put in, and the operation is simple and convenient, improving the use experience of consumers and being suitable for popularization and use.

[0072] Further, the sealing diaphragm 5 can be made of, but is not limited to, aluminum foil. Of course, other materials that are easy to pierce can also be used, which are not limited herein.

[0073] Further, the materials placed in the storage chamber 6 can be, but are not limited to, solid, semi-solid, liquid and other fillers.

[0074] Further, as Figure 2 shown, the storage chamber 6 is a straight cylindrical cavity with equal diameters at each position, the diaphragm cutter 4 is vertically arranged in the storage chamber 6 and is in a cylindrical shape, and the diameter of the diaphragm cutter 4 is smaller than the diameter of the storage chamber 6, so that the diaphragm cutter 4 will not be resisted by the inner wall of the storage chamber 6 during the up and down movement, which is convenient for operation.

[0075] In an alternative embodiment of the present utility model, as Figure 2 、 Figure 3 、 Figure 7 、 Figure 8 、 Figure 12As shown in the figure, the driving mechanism includes a plurality of driving bumps 402 provided on the diaphragm cutter 4 and a plurality of driving blades 101 provided on the inner wall of the top of the upper cover 1 and extending downward. The plurality of driving blades 101 and the plurality of driving bumps 402 are in one-to-one correspondence in the vertical direction (opposite in position and equal in number); the cross-section of the driving blade 101 gradually decreases from the top of the upper cover 1 to the direction away from the top of the upper cover 1, so that the side edge of the driving blade 101 forms an arc or an inclined straight line; when the upper cover 1 is in the state of being screwed and lifted upward, the side edge of the driving blade 101 abuts against the corresponding driving bump 402 and pushes the driving bump 402 to move downward along the side edge of the driving blade 101 to the bottom of the driving blade 101, so as to push the diaphragm cutter 4 to move downward and cut the sealing diaphragm 5 along the edge of the sealing diaphragm 5.

[0076] Furthermore, the number of the driving blades 101 and the number of the driving bumps 402 are both greater than or equal to three. Each driving bump 402 is circumferentially spaced and evenly distributed along the diaphragm cutter 4, and each driving blade 101 is circumferentially spaced and evenly distributed at a position opposite to the driving bump 402 along the upper cover 1, which helps to improve the stability of the driving mechanism and ensure the smooth advancement of the diaphragm cutter 4.

[0077] In an alternative embodiment of the present utility model, as Figure 12 、 Figure 13 shown, a guiding mechanism for guiding the downward movement position of the diaphragm cutter 4 is provided between the diaphragm cutter 4 and the inner wall of the lower cover 2. Among them, the guiding mechanism includes a guiding track (not shown) provided on the outer wall of the diaphragm cutter 4 and a guiding bump 206 provided on the inner wall of the lower cover 2. The guiding bump 206 is slidably embedded in the guiding track. The guiding track can be, but is not limited to, a spiral track groove circumferentially provided on the outer wall of the diaphragm cutter 4. The guiding bump 206 is slidably embedded in the track groove. By the cooperation of the guiding bump 206 and the track groove, during the process of the diaphragm cutter 4 rotating and moving downward, the guiding bump 206 can play a guiding role for the diaphragm cutter 4, so as to ensure that the diaphragm cutter 4 can move downward while rotating stably, and further ensure the smooth piercing and opening of the sealing diaphragm 5. Of course, the guiding track can adopt other guiding structures and shapes as long as it can ensure the guiding effect on the diaphragm cutter 4.

[0078] Furthermore, the number of the guiding tracks can be multiple, and the multiple guiding tracks are circumferentially spaced or continuously provided on the outer wall of the diaphragm cutter 4; correspondingly, as Figure 11As shown, the number of guiding bumps 206 can also be multiple. The multiple guiding bumps 206 are arranged at intervals along the circumferential direction of the lower cover body 2 and evenly distributed on the inner wall of the lower cover body 2. The multiple guiding bumps 206 correspond to multiple guiding tracks one by one, that is, one guiding bump 206 can be slidably embedded in a corresponding guiding track to improve the stability of guiding the downward rotation of the diaphragm cutter 4.

[0079] In an alternative embodiment of the present utility model, as Figure 2 、 Figure 3 shown, the diaphragm cutter 4 is in a cylindrical shape with a vertical setting and both ends open. The cutting teeth 401 are arranged along the circumferential direction of the diaphragm cutter 4 on the bottom edge of the diaphragm cutter 4; at least one material dropping hole 403 communicating the outside and the inside of the diaphragm cutter 4 is provided on the diaphragm cutter 4. When there is material blockage between the diaphragm cutter 4 and the inner wall of the lower cover body 2, by shaking or screwing the upper cover body 1, the blocked material can be displaced through the material dropping hole 403 to the inside of the diaphragm cutter 4, effectively solving the problem of material blockage of the diaphragm cutter 4, ensuring the normal downward movement of the diaphragm cutter 4 and the cutting of the sealing diaphragm 5, ensuring the smooth opening of the fresh-keeping packaging cover, and improving the user experience of consumers. Among them, the material dropping hole 403 in the present utility model can be a through hole of any shape, and its specific shape is not limited herein as long as it can meet the requirement of allowing the material to pass through.

[0080] In an alternative embodiment of the present utility model, as Figure 2 、 Figure 7 、 Figures 8 to 12 shown, a first internal thread 102 is provided on the inner wall of the upper cover body 1, and a first external thread 202 is provided on the outer wall of the lower cover body 2. The upper cover body 1 and the lower cover body 2 are connected by mating the first internal thread 102 and the first external thread 202.

[0081] In an alternative embodiment of the present utility model, as Figure 2 、 Figure 12 shown, a second internal thread 201 is provided on the inner wall of the lower cover body 2, and a second external thread can be provided on the outside of the opening of the packaging container body. The lower cover body 2 is used to be connected with the second external thread on the packaging container body by mating the second internal thread 201, so that the fresh-keeping packaging cover of the present utility model can be assembled on the packaging container body.

[0082] The assembly and use process of the fresh-keeping packaging cover of the present utility model is as follows:

[0083] The lower cover body 2 is connected to the upper cover body 1 through a threaded structure and sealed between the two through a sealing structure. The interior of the lower cover body 2 is separated by a sealing film 5 to form a sealed storage chamber 6. Solids, semi-solids or liquid materials can be stored in the storage chamber 6, and the sealing film 5 is not damaged under normal conditions. The film cutter 4 is located in the storage chamber 6. A driving bump 402 matching the running track of the film cutter 4 is arranged on the inner wall of the film cutter 4. A guiding track is arranged on the outer wall of the film cutter 4, and a guiding bump 206 capable of moving along the guiding track is arranged on the inner wall of the lower cover body 2. When the upper cover body 1 is screwed, the driving blade 101 arranged in the upper cover body 1 rotates synchronously. During the rotation of the driving blade 101, the side edge thereof presses down the driving bump 402 on the film cutter 4. The film cutter 4 slides along the track of the guiding track under the guiding cooperation of the guiding bump 206 and the guiding track, and cuts and opens along the edge of the film cutter 4.

[0084] After the upper cover body 1 and the lower cover body 2 are assembled in place, the top of the first limiting bump 301 just abuts against the bottom of the limiting boss 203, and the first limiting end face 2041 in the limiting groove 204 just abuts against the second limiting end face 3021 on the second limiting bump 302. When the upper cover body 1 is screwed and opened, since the first limiting bump 301 and the limiting boss 203 cooperate to axially limit the anti-theft ring 3, and the first limiting end face 2041 in the limiting groove 204 and the second limiting end face 3021 on the second limiting bump 302 cooperate to circumferentially limit the anti-theft ring 3, the dual axial and circumferential limiting functions of the anti-theft ring 3 are achieved. After starting to screw the upper cover body 1, the connection points between the anti-theft ring 3 and the upper cover body 1 can be quickly disconnected (i.e., quickly broken bridge), which can avoid the influence of the setting of the anti-theft ring 3 on the opening of the upper cover body 1.

[0085] In the present utility model, during the process from the upper cover body 1 starting to rotate until the bottom cutting teeth 401 of the film cutter 4 contact the top surface of the sealing film 5 and cutting occurs, the upper cover body 1 needs to rotate the first angle A; and during the process from the upper cover body 1 starting to rotate until all the connection points between the anti-theft ring 3 and the upper cover body 1 are broken, the upper cover body 1 needs to rotate the second angle B. Among them, the first angle A is greater than the second angle B (i.e., A > B), that is, before the sealing film 5 is cut, the anti-theft ring 3 has separated from the upper cover body 1, realizing the effective anti-theft of the anti-theft ring 3. Since the first angle A is limited by the bottle cap structure and is difficult to be made large, through the dual limiting structure of the anti-theft ring 3 in the present utility model, it can quickly separate from the anti-theft ring 3 when the upper cover body 1 is screwed. Therefore, the first angle A can be made as small as possible.

[0086] The characteristics and advantages of the fresh-keeping packaging cap of the present utility model are:

[0087] 1. The fresh-keeping packaging lid can achieve double limit on the anti-theft ring 3 in the axial and circumferential directions. When the upper cover body 1 is screwed, the connection point between the anti-theft ring 3 and the upper cover body 1 can be quickly disconnected (i.e., quickly broken bridge), which can avoid the influence of the anti-theft ring 3 on the opening of the upper cover body 1 and improve the use experience of consumers.

[0088] 2. A storage chamber 6 is formed in the fresh-keeping packaging lid. A sealing film sheet 5 for sealing the storage chamber 6 is arranged in the fresh-keeping packaging lid. During the opening process, only by screwing the upper cover body 1, the diaphragm cutter 4 can be driven to rotate circumferentially and move downward at the same time, so as to cut and open the sealing film sheet 5, and the materials in the storage chamber 6 can sequentially pass through the bottom opening of the lower cover body 2 and the opening on the packaging container and fall into the packaging container. The operation is simple and convenient, improving the use experience of consumers.

[0089] 3. The fresh-keeping packaging lid can store solid, semi-solid or liquid substances in the storage chamber 6. When assembled with other packages, it can realize the function of puncturing and breaking the sealing film sheet 5. Through external addition technology, the problem of adding heat-sensitive or easily inactivated raw materials in the aseptic packaging of liquid milk products during the processing process can be perfectly solved, improving the product value. The diversified packaging application technical solution enables the functional additives to play the maximum value.

[0090] 4. The fresh-keeping packaging lid adopts a sealing film structure to achieve good sealing and fresh-keeping effects. During use, it can not only keep fresh the drinks contained in the packaging container, but also keep fresh the materials stored in the fresh-keeping packaging lid, thus effectively extending the shelf life of the product and ensuring the good quality of the product.

[0091] Embodiment 2

[0092] The present utility model provides a packaging container, which includes a container body and the above-mentioned fresh-keeping packaging lid, and the fresh-keeping packaging lid is covered on the opening of the container body.

[0093] In an optional embodiment of the present utility model, the bottom of the lower cover body 2 of the fresh-keeping packaging lid is adhered to the outer wall near the opening of the container body. Of course, other connection methods such as snap connection and threaded connection can also be used for fixation, which is not limited herein.

[0094] The container body in the present utility model can be, but is not limited to, containers that can hold drinks such as bottles (such as HDPE bottles, PET bottles), cups (such as plastic cups), boxes (such as paper-based packaging boxes), etc. The sealing film sheet 5 can be opened by the diaphragm cutter 4 on the fresh-keeping packaging lid.

[0095] It should be noted that in the description of the present application, the terms "first", "second", etc. are only used for descriptive purposes and to distinguish similar objects, and there is no sequence between them, nor can it be understood as indicating or implying relative importance. In addition, in the description of the present application, unless otherwise specified, the meaning of "a plurality of" is two or more.

[0096] The above various embodiments in this specification are all described in a progressive manner. For the same or similar parts between the various embodiments, reference can be made to each other, and the key point of each embodiment is to illustrate the differences from other embodiments.

[0097] The above are only several embodiments of the present utility model. Although the disclosed embodiments of the present utility model are as above, the content is only an embodiment adopted for the convenience of understanding the present utility model and is not used to limit the present utility model. Any person skilled in the art in the technical field to which the present utility model pertains, without departing from the spirit and scope disclosed by the present utility model, can make any modifications and changes in the form and details of the embodiments, but the scope of patent protection of the present utility model shall still be subject to the scope defined by the appended claims.

Claims

1. A fresh-keeping packaging lid, characterized in that, The fresh-keeping packaging lid includes: A lower cover body, which is cylindrical and is used to be arranged at the opening of the packaging container body; An upper cover body, which is screwed and covered on the top of the lower cover body; An anti-theft ring, which is located below the upper cover body, and the top of the anti-theft ring is connected to the bottom edge of the upper cover body through a plurality of connection points distributed at intervals; The anti-theft ring is sleeved on the outer periphery of the lower cover body. A limiting boss is arranged on the outer wall of the lower cover body, and a first limiting protrusion is arranged on the inner wall of the anti-theft ring. When the upper cover body and the lower cover body are in a closed state, the first limiting protrusion is located below the limiting boss, and the top of the first limiting protrusion abuts against the bottom of the limiting boss to axially limit the anti-theft ring; A limiting groove extending along the circumferential direction of the lower cover body is arranged on the outer wall of the lower cover body. One end of the limiting groove has a first limiting end face, and a second limiting protrusion is arranged on the inner wall of the anti-theft ring. A second limiting end face is formed on one side of the second limiting protrusion. When the upper cover body and the lower cover body are in a closed state, the second limiting protrusion is located in the limiting groove, and the second limiting end face abuts against the first limiting end face to circumferentially limit the anti-theft ring.

2. The fresh-keeping packaging lid according to claim 1, characterized in that, The limiting boss is a convex ring arranged on the outer wall of the lower cover body along the circumferential direction of the lower cover body. The first limiting protrusion is a strip-shaped protrusion extending along the circumferential direction of the anti-theft ring. When the upper cover body and the lower cover body are in a closed state, the first limiting protrusion and the limiting boss are vertically aligned and matched so that the top of the first limiting protrusion abuts against the bottom of the limiting boss.

3. The fresh-keeping packaging lid according to claim 2, characterized in that, The number of the first limiting protrusions is multiple, and the multiple first limiting protrusions are distributed at intervals along the circumferential direction of the anti-theft ring.

4. The fresh-keeping packaging lid according to claim 3, wherein, The number of the second limiting protrusions is multiple, and the multiple second limiting protrusions are distributed at intervals along the circumferential direction of the anti-theft ring; Along the circumferential direction of the anti-theft ring, the multiple first limiting protrusions and the multiple second limiting protrusions are alternately arranged.

5. The fresh-keeping packaging lid according to claim 1, characterized in that, The limiting groove is a strip-shaped groove extending along the circumferential direction of the lower cover body. Along the circumferential direction of the lower cover body, the limiting groove has a first end and a second end. The first end is an inlet end for the second limiting protrusion to slide in, and the first limiting end face is located at the second end.

6. The fresh-keeping packaging lid according to any one of claims 1 to 5, characterized in that, Along the axial direction of the lower cover body, the limiting boss is located above the limiting groove, and the bottom of the limiting boss forms the top groove edge of the limiting groove. When the upper cover body and the lower cover body are in a closed state, both the first limiting protrusion and the second limiting protrusion are located in the limiting groove.

7. The fresh-keeping packaging lid according to claim 1, characterized in that, An outwardly convex shoulder is formed on the side wall of the lower cover body along its circumferential direction. The anti-theft ring is located between the upper cover body and the shoulder, and the bottom of the anti-theft ring is close to or in contact with the shoulder.

8. The fresh-keeping packaging lid according to claim 1, characterized in that, A sealing diaphragm for blocking the middle cavity of the lower cover body is arranged inside the lower cover body, so as to form a storage cavity for accommodating materials between the upper cover body, the lower cover body and the sealing diaphragm; A diaphragm cutter capable of moving up and down is arranged in the storage cavity. A driving mechanism for screwing the upper cover body to drive the diaphragm cutter to move downwards is arranged between the diaphragm cutter and the upper cover body. When the upper cover body is in the state of being screwed and moved upwards, the driving mechanism can drive the diaphragm cutter to move downwards, so that the cutting teeth at the bottom of the diaphragm cutter cut open the sealing diaphragm.

9. The fresh-keeping packaging lid according to claim 8, characterized in that, The driving mechanism includes a plurality of driving bumps arranged on the diaphragm cutter and a plurality of driving blades arranged on the inner wall of the top of the upper cover body and extending downwards. The plurality of driving blades and the plurality of driving bumps correspond to each other vertically. The cross-section of the driving blade gradually decreases from the direction close to the top of the upper cover body to the direction far from the top of the upper cover body, so that the side edge of the driving blade forms an arc or an inclined straight line. When the upper cover body is in the state of being screwed and moved upwards, the side edge of the driving blade abuts against the driving bump at the corresponding position and pushes the driving bump to move downwards along the side edge of the driving blade to the bottom of the driving blade, so as to push the diaphragm cutter to move downwards and cut open the sealing diaphragm along the edge of the sealing diaphragm.

10. The fresh-keeping packaging lid according to claim 9, wherein, A guiding mechanism for guiding the downward movement position of the diaphragm cutter is arranged between the diaphragm cutter and the inner wall of the lower cover body. The guiding mechanism includes a guiding track arranged on the outer wall of the diaphragm cutter and a guiding bump arranged on the inner wall of the lower cover body. The guiding bump can be slidably embedded in the guiding track.

11. The fresh-keeping packaging lid according to claim 10, characterized in that, The diaphragm cutter is a vertically arranged cylindrical shape with openings at both ends, and the cutting teeth are arranged along the circumferential direction of the bottom edge of the diaphragm cutter. At least one material dropping hole communicating the outside and the inside of the diaphragm cutter is arranged on the diaphragm cutter.

12. The fresh-keeping packaging lid according to claim 8 or 11, characterized in that, During the process from the start of rotation of the upper cover body to the contact between the cutting of the diaphragm cutter and the top surface of the sealing diaphragm to cause cutting, the upper cover body rotates by a first angle. During the process from the start of rotation of the upper cover body to the complete fracture of the connection points between the anti-theft ring and the upper cover body, the upper cover body rotates by a second angle, wherein the first angle is greater than the second angle.

13. The fresh-keeping packaging lid according to claim 1 or 8, characterized in that, A first internal thread is arranged on the inner wall of the upper cover body, and a first external thread is arranged on the outer wall of the lower cover body. The upper cover body and the lower cover body are connected by matching the first internal thread and the first external thread.

14. The fresh-keeping packaging lid according to claim 1, wherein A second internal thread is arranged on the inner wall of the lower cover body, and the lower cover body is used for connecting with the second external thread on the packaging container body by matching the second internal thread.

15. A packaging container, characterized in that, The packaging container includes a container body and the fresh-keeping packaging cover according to any one of claims 1 to 14, and the fresh-keeping packaging cover is covered on the opening of the container body.

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