A container closure and container assembly

Abstract

This application discloses a container cap and a container assembly, including an attachment ring and a cap body. The attachment ring is used to attach to the outer periphery of the opening of the container body. The cap body is connected to the attachment ring and is rotatable relative to the attachment ring. The cap body includes a top wall, a chamber side wall, and a chamber baffle. The chamber side wall extends from the top wall and surrounds the top wall to form a chamber for filling with desiccant. The extended end of the chamber side wall forms a radially inwardly curled first rolled edge. The chamber baffle is disposed at the extended end of the chamber side wall and is fixed by the first rolled edge to restrict the desiccant from escaping from the chamber.

Description

[0001] This application is a divisional application of Chinese patent application CN202310073818.5, filed on January 30, 2023, entitled "Container lid, container assembly and method of manufacturing container lid". Technical Field

[0002] This application relates to the field of packaging technology, and in particular to a container lid and container assembly. Background Technology

[0003] There are certain requirements for the storage of food, medicine, or health products. For example, in order to prevent food, medicine, or health products from getting damp, it is usually necessary to place a desiccant inside the packaging to absorb the moisture inside the packaging.

[0004] The methods described in this section are not necessarily methods that had been previously conceived or adopted. Unless otherwise specified, no method described in this section should be assumed to be prior art simply because it is included in this section. Similarly, unless otherwise specified, the issues mentioned in this section should not be considered to be accepted in any prior art.

[0005] Application content

[0006] The purpose of this application is to provide a container lid and container assembly that facilitates the filling of desiccant to achieve a moisture-proof function.

[0007] According to one aspect of this application, a container cap is provided. The container cap includes an attachment ring, a cap body, and a chamber baffle. The attachment ring is for attaching to the outer periphery of an opening of the container body. The cap body is connected to the attachment ring and is rotatable relative to the attachment ring. The cap body includes: a top wall; a chamber sidewall extending from the top wall and surrounding the top wall to form a chamber, the extended end of the chamber sidewall forming a radially inwardly curled first rolled edge; and a sealing skirt extending from the top wall and surrounding the chamber sidewall to form a circumferential groove with the chamber sidewall, the extended end of the sealing skirt forming a radially inwardly curled and circumferentially continuous second rolled edge. The chamber baffle is disposed at the extended end of the chamber sidewall and is secured by the first rolled edge.

[0008] According to another aspect of this application, a container assembly is provided. The container assembly includes a container body and the aforementioned container lid, the container lid being attached to an opening in the container body.

[0009] According to another aspect of this application, a method for manufacturing the aforementioned container cap is provided. The method includes: injection molding a raw material to obtain an injection molded part, the injection molded part including an attachment ring and a cap body; filling a cavity of the cap body with a desiccant; placing a cavity baffle at an extension end of a cavity sidewall; and heat-pressing the cavity sidewall and a sealing skirt to form a first rolled edge at the extension end of the cavity sidewall to secure the cavity baffle, and to form a second rolled edge at the extension end of the sealing skirt.

[0010] These and other aspects of this application will be clearly understood from the embodiments described below, and will be elucidated with reference to the embodiments described below. Attached Figure Description

[0011] Further details, features, and advantages of this application are disclosed in the following description of exemplary embodiments in conjunction with the accompanying drawings, in which:

[0012] Figure 1 This is a schematic diagram illustrating a container lid according to an exemplary embodiment;

[0013] Figure 2 This is another schematic diagram illustrating a container lid according to an exemplary embodiment;

[0014] Figure 3 This is yet another schematic diagram illustrating a container lid according to an exemplary embodiment;

[0015] Figure 4 This is yet another schematic diagram illustrating a container lid according to an exemplary embodiment;

[0016] Figure 5 This is an illustration based on an exemplary embodiment. Figure 4 Cross-sectional view of the container lid;

[0017] Figure 6 This is an illustration based on an exemplary embodiment. Figure 5 A close-up view of the container lid;

[0018] Figure 7 This is a schematic diagram illustrating a container assembly according to an exemplary embodiment;

[0019] Figure 8 This is a flowchart illustrating a method for manufacturing a container lid according to an exemplary embodiment; and

[0020] Figures 9A to 9C This is a schematic diagram illustrating the manufacture of a container lid using a method for manufacturing a container lid according to an exemplary embodiment. Detailed Implementation

[0021] In this application, unless otherwise stated, the use of terms such as "first," "second," etc., to describe various elements is not intended to limit the positional, temporal, or importance relationships of these elements; such terms are merely used to distinguish one element from another. In some examples, the first element and the second element may refer to the same instance of that element, while in other cases, based on the context, they may refer to different instances.

[0022] The terminology used in the description of the various examples described herein is for the purpose of describing particular examples only and is not intended to be limiting. Unless the context explicitly indicates otherwise, an element may be one or more unless the number of elements is specifically limited. As used herein, the term "multiple" means two or more, and the term "based on" should be interpreted as "at least partially based on". Furthermore, the terms "and / or" and "at least one of..." cover any one of the listed items and all possible combinations thereof.

[0023] As mentioned above, desiccants can be placed inside packaging to prevent medicines, health products, or food from getting damp. In related technologies, desiccant packets can be placed inside the packaging bottle, mixing the desiccant packet with the medicine or food inside. However, there is a risk of desiccant packets breaking. If a desiccant packet breaks, the leaked desiccant will contaminate the medicine or food in the packaging bottle, causing inconvenience to the user.

[0024] Therefore, embodiments of this application provide a container lid, a container assembly, and a method for manufacturing a container lid.

[0025] Exemplary embodiments of this application will now be described in detail with reference to the accompanying drawings.

[0026] Figures 1 to 4 This is a schematic diagram illustrating a container lid 100 according to an exemplary embodiment; Figure 5 This is an illustration based on an exemplary embodiment. Figure 4 A cross-sectional view of the container lid 100; and Figure 6 This is an illustration based on an exemplary embodiment. Figure 5 A magnified view of a portion of the container lid 100.

[0027] refer to Figures 1 to 5 The container lid 100 includes an attachment ring 110, a lid body 120, and a chamber baffle 130.

[0028] The attachment ring 110 is used to attach to the outer periphery of the opening of the container body. For example, the container body can be an open can or an open bottle, and the attachment ring 110 can be attached to the outer periphery of the opening of the container body and can be fixed to the outer periphery of the opening of the container body by means of the snap-fit ​​structure on the attachment ring 110. The shape of the attachment ring 110 can be adapted to the opening of the container body.

[0029] The cover body 120 is connected to the attachment ring 110 and is capable of flipping relative to the attachment ring 110. For example... Figure 2 As shown, the cover body 120 can be connected to the attachment ring 110 via the connecting part 140. The connecting part 140 can be integrally formed with the attachment ring 110 and the cover body 120, and can undergo a certain degree of deformation. Figure 2 In the example, the lid body 120 is rotated approximately 180° relative to the attachment ring 110, allowing the user to place or remove items from the container body. In the example, the connection 140 can be a hinge. Furthermore, as... Figure 2 and Figure 3 As shown, the attachment ring 110 has a plurality of connection points 119 arranged circumferentially at its opening, and the cover body 120 has a plurality of connection points 129 at corresponding positions. Before the cover body 120 is first flipped open from the attachment ring 110, each of the plurality of connection points 119 on the attachment ring 110 is connected to a corresponding connection point 129 on the cover body 120, thereby resisting the flipping of the cover body 120 relative to the attachment ring 110. In other words, before the cover body 120 is first flipped open from the attachment ring 110, each connection point 119 and the corresponding connection point 129 can be integrally formed. Each connection point 119 and the corresponding connection point 129 can be disengaged from each other under the action of external force, thereby allowing the cover body 120 to be flipped open from the attachment ring 110. Thus, the connection points 119 and 129 can serve an anti-theft function. It will be understood that, although in Figure 2 and Figure 3 In the example, both the attachment ring 110 and the cover body 120 are provided with connection points, but in other examples, the connection points may be provided only on the attachment ring 110 or only on the cover body 120.

[0030] Further reference Figure 5 , Figure 5 It shows Figure 4 A cross-sectional view of section AA of the container lid 100. The lid body 120 includes a top wall 121, a chamber sidewall 122, and a sealing skirt 124. The chamber sidewall 122 extends from the top wall 121 and surrounds the top wall 121 to form a chamber. The extended end of the chamber sidewall 122 forms a radially inwardly curled first rolled edge 123. The sealing skirt 124 extends from the top wall 121 and surrounds the chamber sidewall 122 to form a circumferential groove 125 between the sealing skirt 124 and the chamber sidewall 122. The extended end of the sealing skirt 124 forms a radially inwardly curled and circumferentially continuous second rolled edge 126.

[0031] The cavity formed by the top wall 121 and the chamber sidewall 122 can be used to fill a desiccant (e.g., desiccant granules). Furthermore, the top wall 121 and the chamber sidewall 122 can have a relatively thick wall thickness to ensure that the formed cavity is not easily deformed. The sealing skirt 124 can have an appropriately thin wall thickness, thereby ensuring the strength of the sealing skirt 124 while allowing it to undergo elastic deformation under compression. Since the sealing skirt 124 surrounds the chamber sidewall 122 and forms a circumferential groove 125 between it and the chamber sidewall 122, when the sealing skirt 124 is inserted into the container body, it is compressed radially inward (towards the circumferential groove 125) by the container body and undergoes elastic deformation to form a seal between the cap body 120 and the corresponding container body.

[0032] The chamber baffle 130 is disposed at the extended end of the chamber sidewall 122 and is fixed by the first rolled edge 123. In the example, the chamber baffle 130 may be cardboard, which prevents the desiccant in the chamber from overflowing and allows moisture to pass through, so that the desiccant in the chamber can absorb moisture in the container body through the cardboard.

[0033] Continue to refer to Figure 6 , Figure 6 right Figure 5 The M portion in the image is shown in magnification. A second rolled edge 126 is formed at the extended end of the sealing skirt 124. This second rolled edge 126 is radially inwardly rolled and continuous in the circumferential direction. This not only prevents objects from entering the circumferential groove 125 (which could impede the radially inward elastic deformation of the sealing skirt 124 if an object were to enter), but also provides support for the rebound (i.e., radial deformation) of the sealing skirt 124, thereby facilitating a tighter seal between the sealing skirt 124 and the container body. Because the second rolled edge 126 is continuous in the circumferential direction, even small objects can be blocked from entering the circumferential groove 125 by the second rolled edge 126.

[0034] It will be understood that the attachment ring 110 and the cap body 120 can be integrally formed, for example, the attachment ring 110 and the cap body 120 can be integrally molded. Furthermore, the materials of the attachment ring 110 and the cap body 120 can be polymers.

[0035] According to some embodiments, reference Figure 3 Multiple chamber reinforcing ribs 150 can be provided circumferentially at intervals on the inner wall of the chamber. The chamber reinforcing ribs 150 can enhance the strength of the chamber sidewall 122, thus helping to maintain the shape of the chamber sidewall 122 and preventing compression of the contents within the chamber. In the example, the number of chamber reinforcing ribs 150 can be 6, 8, or 10. Furthermore, the chamber reinforcing ribs 150 can be integrally formed with the chamber sidewall 122. It should be noted that, for clear illustration of the chamber reinforcing ribs 150, Figure 3 The chamber baffle was hidden.

[0036] According to some embodiments, the gap between the second roll edge 126 and the chamber sidewall 122 can be less than or equal to 1 mm. (See reference) Figure 6 The gap between the second rolled edge 126 and the chamber sidewall 122 can be a slit formed between the position of the second rolled edge 126 closest to the chamber sidewall 122 and the chamber sidewall 122. Since the second rolled edge 126 is continuous in the circumferential direction, an annular gap can be formed between the second rolled edge 126 and the chamber sidewall 122, and the radial dimension of this annular gap is less than or equal to 1 mm. In the example, the gap between the second rolled edge 126 and the chamber sidewall 122 can be 0.1 mm, 0.2 mm, 0.3 mm, 0.5 mm, or 1 mm. In the example, the size of the gap between the second rolled edge 126 and the chamber sidewall 122 can be any value less than or equal to 1 mm.

[0037] According to some embodiments, the second rolled edge 126 may contact at least a portion of the chamber sidewall 122. In some examples, the radial dimension of the circumferential groove 125 may be reduced, thereby bringing the second rolled edge 126 closer to the chamber sidewall 122 so that the second rolled edge 126 contacts at least a portion of the chamber sidewall 122. In some examples, the degree of curl of the second rolled edge 126 may be increased, thereby bringing the second rolled edge 126 into contact with at least a portion of the chamber sidewall 122. When the second rolled edge 126 contacts the chamber sidewall 122, the circumferential groove 125 can be better isolated from the outside. For example, powder in the container can be prevented from entering the circumferential groove 125.

[0038] According to some embodiments, reference Figure 5 The outer side of the sealing skirt 124 may have sealing ribs 127 arranged circumferentially along the sealing skirt 124, and the sealing skirt 124 is configured such that when the sealing ribs 127 are engaged in the opening of the container body, the sealing skirt 124 deforms radially inward and the second rolled edge 126 abuts against the chamber sidewall 122. For example, when the sealing ribs 127 are not engaged in the opening of the container body, there may be a gap between the second rolled edge 126 and the chamber sidewall 122, while when the sealing ribs 127 are engaged in the opening of the container body, the second rolled edge 126 abuts inward against the chamber sidewall 122, which can provide support for the rebound of the sealing skirt 124, thereby improving the sealing performance.

[0039] According to some embodiments, continue to refer to Figure 5The vertical distance between the second rolled edge 126 and the top wall 121 can be less than the vertical distance between the first rolled edge 123 and the top wall 121. Since the first rolled edge 123 and the second rolled edge 126 can be processed in the hot stamping process, by setting different "heights" (i.e. different vertical distances from the top wall 121) for the first rolled edge 123 and the second rolled edge 126, it is convenient to form the first rolled edge 123 and the second rolled edge 126 simultaneously in the hot stamping process, preventing interference between the first rolled edge 123 and the second rolled edge 126 during the curling process or the curling angle of any rolled edge not meeting the requirements.

[0040] In the example, the vertical distance between the second rolled edge 126 and the top wall 121 can be 3 mm, 5 mm, 7 mm or 10 mm smaller than the vertical distance between the first rolled edge 123 and the top wall 121.

[0041] According to some embodiments, the degree of curling of the first rolled edge 123 and the second rolled edge 126 can be the same. In other words, the curling angles of the first rolled edge 123 and the second rolled edge 126 can be the same. For example, the radial inward curling angles of both the first rolled edge 123 and the second rolled edge 126 are 160 degrees or 170 degrees.

[0042] According to some embodiments, the second rolled edge 126 may be bent radially inward by more than 90 degrees.

[0043] According to some embodiments, the second rolled edge 126 may be bent radially inward by no more than 180 degrees.

[0044] According to some embodiments, such as Figure 5 As shown, the chamber sidewall 122 includes a main body extending from the top wall 121 and a first rolled edge 123 extending from the main body. The thickness of the first rolled edge 123 is less than the thickness of the main body, and the position of the chamber baffle 130 is defined by the main body and the first rolled edge 123. It can be seen that because the thickness of the main body is greater than the thickness of the first rolled edge 123, a recessed platform is formed on the main body for placing the chamber baffle 130. The recessed platform of the main body restricts the upward movement of the chamber baffle 130. Furthermore, the first rolled edge 123 is radially rolled inward, thereby restricting the downward movement of the chamber baffle 130.

[0045] According to some embodiments, the container cap 100 may also include a desiccant disposed within a chamber, and a chamber baffle 130 restricts the desiccant from escaping from the chamber. This ensures that the desiccant does not come into contact with items (e.g., pharmaceuticals, food) inside the container body.

[0046] According to another aspect of this application, a container component is also provided. Figure 7 This is a schematic diagram illustrating a container assembly 700 according to an exemplary embodiment. Figure 7 As shown, the container assembly 700 includes a container body 710 and a container lid 100, with the container lid 100 attached to the opening of the container body 710.

[0047] According to some embodiments, the container lid 100 is assembled such that, during the process of flipping the container lid 100 from an open state to a closed state, the second rolled edge 126 of the container lid 100 first contacts the container body 710. Thus, in daily use, when the user flips the container lid 100 from an open state to a semi-closed state (i.e., the "partially ajar" state when the main body of the container lid 100 just contacts the container body 710), the second rolled edge 126 of the container lid 100 contacts the opening portion of the container body 710. Since the second rolled edge 126 is continuous in the circumferential direction, even when the lid body is in a semi-closed state, a certain seal can be formed between the lid body and the container body 710, thereby isolating the contents of the container body 710 from the outside air.

[0048] According to another aspect of this application, a method for manufacturing the aforementioned container lid is also provided. (Reference) Figures 8 to 9C ,in, Figure 8 This is a flowchart illustrating a method 800 for manufacturing a container lid according to an exemplary embodiment; and Figure 9A , Figure 9B and Figure 9C This is a schematic diagram illustrating the manufacture of a container lid using a method 800 for manufacturing a container lid according to an exemplary embodiment.

[0049] Method 800 includes:

[0050] Step S810: Inject the raw material into a molded part 910, which includes an attachment ring and a cover body.

[0051] Step S820: Fill the cavity of the cover body with desiccant 920;

[0052] Step S830: Place the chamber baffle 930 at the extended end of the chamber sidewall; and

[0053] Step S840: Heat-press the chamber sidewall and the sealing skirt to form a first rolled edge on the extended end of the chamber sidewall to fix the chamber baffle, and to form a second rolled edge on the extended end of the sealing skirt.

[0054] The raw material can be, for example, polymer granules. The hot-melt polymer is injected into a mold, and after cooling, a molded injection part 910 can be obtained. In the example, the attachment ring and the cap body of the injection part 910 can be integrally injection molded.

[0055] Figure 9A A schematic diagram of step S820 is shown. The desiccant 920 can be a desiccant packet or desiccant granules, etc.

[0056] Figure 9B A schematic diagram of step S830 is shown. The chamber baffle 930 can be a cardboard of suitable size.

[0057] like Figure 9C As shown, the extended ends of the chamber sidewall and the extended ends of the sealing skirt are respectively heat-stamped to form a first rolled edge and a second rolled edge. The mold used for heat stamping can be a heat-stamping copper head. Depending on the raw material, the heat-stamping copper head can be heated to different temperatures to heat the extended ends of the chamber sidewall and the extended ends of the sealing skirt to a suitable temperature for curling (without melting).

[0058] according to Figures 9A to 9C Another advantage of forming a radially inwardly curled and circumferentially continuous second rolled edge at the extended end of the sealing skirt is that if some desiccant particles are scattered in the circumferential groove between the sealing skirt and the chamber sidewall during the desiccant filling step, the subsequently formed circumferentially continuous second rolled edge can seal these desiccant particles in the circumferential groove, thereby preventing these desiccant particles from falling into the container body after the lid body is closed and causing contamination to food or medicine.

[0059] According to some embodiments, step S840 may include simultaneously heat-pressing the chamber sidewall and the sealing skirt to form the first rolled edge and the second rolled edge simultaneously. This can further improve the efficiency of manufacturing the container cap.

[0060] It should be understood that in this specification, the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," and "circumferential" indicate the orientation or positional relationship or dimensions based on the orientation or positional relationship or dimensions shown in the accompanying drawings. These terms are used only for ease of description and are not intended to indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as limiting the scope of protection of this application.

[0061] Furthermore, the terms "first," "second," and "third," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined as "first," "second," or "third" may explicitly or implicitly include one or more of that feature. In the description of this application, "multiple" means two or more, unless otherwise explicitly specified.

[0062] In this application, unless otherwise expressly specified and limited, the terms "installation," "connection," "joining," "installation," etc., should be interpreted broadly. For example, they can refer to an installation connection, a detachable connection, or an integral part; they can refer to a mechanical connection, an electrical connection, or a communication connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0063] In this application, unless otherwise expressly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature being directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature being directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0064] Although this application has been described and illustrated in detail in the accompanying drawings and the foregoing description, such description and illustration should be considered illustrative and suggestive, not restrictive; this application is not limited to the disclosed embodiments. By studying the drawings, the disclosure, and the appended claims, those skilled in the art will be able to understand and implement variations of the disclosed embodiments in practicing the claimed subject matter. In the claims, the word "comprising" does not exclude other elements or steps not listed, the indefinite article "a" or "an" does not exclude a plurality, the term "a plurality" means two or more, and the term "based on" should be interpreted as "at least partially based on." The mere fact that certain measures are recited in mutually different dependent claims does not indicate that a combination of these measures cannot be beneficial.

Claims

1. A container lid, characterized in that, include: An attachment ring for attaching to the outer periphery of an opening in the container body; A cover body, connected to the attachment ring and capable of flipping relative to the attachment ring, the cover body comprising: Top wall; A chamber sidewall extends from the top wall and surrounds the top wall to form a chamber for filling with desiccant, wherein the extending end of the chamber sidewall forms a first radially inwardly curled edge. A sealing skirt extends from the top wall and forms a circumferential groove around the side wall of the chamber. The outer side of the sealing skirt has circumferentially arranged sealing ribs, and the extended end forms a radially inwardly curled and circumferentially continuous second rolled edge. A chamber baffle is disposed at the extended end of the sidewall of the chamber and is fixed by the first rolled edge portion to restrict the desiccant from escaping from the chamber; When the sealing rib is inserted into the opening of the container body, the sealing skirt deforms radially inward so that the second rolled edge abuts against the side wall of the chamber.

2. The container lid according to claim 1, characterized in that, The chamber baffle allows moisture to pass through, enabling the desiccant within the chamber to absorb moisture from the container body.

3. The container lid according to claim 1, characterized in that, The inner wall of the chamber is provided with multiple chamber reinforcing ribs spaced circumferentially.

4. The container lid according to claim 1, characterized in that, The gap between the second rolled edge and the sidewall of the chamber is less than or equal to 1 mm, or the second rolled edge is in contact with at least a portion of the sidewall of the chamber.

5. The container lid according to claim 1, characterized in that, The vertical distance between the second rolled edge and the top wall is less than the vertical distance between the first rolled edge and the top wall.

6. The container lid according to claim 1, characterized in that, The second rolled edge is bent radially inward by more than 90 degrees, or the second rolled edge is bent radially inward by no more than 180 degrees.

7. The container lid according to any one of claims 1-6, characterized in that, The chamber sidewall includes a main body portion extending from the top wall and a first rolled edge portion extending from the main body portion; The thickness of the first rolled edge portion is less than the thickness of the main body portion, and the position of the chamber baffle is defined by the main body portion and the first rolled edge portion.

8. A container component, characterized in that, include: Container body; The container lid as described in any one of claims 1-7; The container lid is attached to the opening of the container body, and the container lid is assembled such that, during the process of the container lid flipping from the open state to the closed state, the second rolled edge of the container lid contacts the container body first.

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