Sealing cover and preservation box

Abstract

The utility model discloses a sealing cover and fresh -keeping box, wherein sealing cover, include: main part, including glass board and seal ring, and seal ring is silica gel and is sealedly connected with the periphery of glass board, and seal ring is used for with container cover and seals, two buckles of symmetrical arrangement in seal ring both sides are the plastic shaping article, and the buckle is fixed through ultrasonic welding between seal ring, and the buckle can rotate and is buckled in the both sides of container. The main part is set up as the structure of glass board and silica gel seal ring sealed connection, utilizes the high elasticity and the close nature of silica gel material to make seal ring can be closely attached with container, effectively enhances the sealing effect, and the glass board provides stable support and visible structure, and the plastic buckle of symmetrical arrangement on both sides is fixed with seal ring through ultrasonic welding, not only guarantees the stability of buckle connection, and the plastic buckle can rotate and is buckled in the both sides of container, realizes the convenient and quick open -close operation.

Description

Technical Field

[0001] This utility model relates to the field of sealed container technology, and in particular to a sealing cap and a food storage box with a sealing cap. Background Technology

[0002] Most food storage container lids on the market are currently made from a single piece of plastic through a one-piece molding process. This type of pure plastic sealing lid has significant drawbacks in actual use. While plastic itself possesses a certain degree of flexibility and elasticity, it is prone to irreversible deformation during prolonged and frequent opening and closing, especially under significant temperature changes or external pressure. This deformation increases the gap between the lid and the container, resulting in a significant decrease in sealing performance. This makes it difficult to effectively prevent the leakage of gas or liquid from the container, failing to meet users' needs for long-term stable sealing. Utility Model Content

[0003] This invention aims to solve at least one of the technical problems existing in the prior art. To this end, this invention proposes a sealing cap that employs a composite structure of a glass plate and a silicone sealing ring, combined with a plastic buckle fixed by ultrasonic welding. This design combines the rigidity of glass, the elasticity of silicone, and the toughness of plastic, resulting in excellent sealing performance and a secure buckle engagement.

[0004] This utility model also proposes a food storage container with the aforementioned sealing lid.

[0005] The sealing cap according to this utility model includes: The main body includes a glass plate and a sealing ring, wherein the sealing ring is made of silicone and is sealed to the periphery of the glass plate, and the sealing ring is used to seal with the container lid; Two buckles are symmetrically arranged on both sides of the sealing ring. The buckles are plastic parts and are fixed to the sealing ring by ultrasonic welding. The buckles can be rotated and fastened to both sides of the container.

[0006] The sealing cap according to this utility model has at least the following beneficial effects: the main body is set as a structure in which a glass plate and a silicone sealing ring are sealed together. The high elasticity and conformability of the silicone material allow the sealing ring to fit tightly with the container, effectively enhancing the sealing effect and preventing leakage of substances inside the box. At the same time, the glass plate provides stable support and a visible structure. The plastic buckles arranged symmetrically on both sides are fixed to the sealing ring by ultrasonic welding, which not only ensures the stability of the buckle connection, but also allows the plastic buckles to be rotated and fastened to both sides of the container, realizing convenient and quick opening and closing operations. This effectively solves the problems of easy deformation and poor sealing of existing pure plastic food storage box caps.

[0007] According to some embodiments of the present invention, the sealing cover has connecting ears symmetrically arranged on both sides of the sealing ring. The connecting ears are made of silicone and are integrally connected to the sealing ring. The connecting ears and the buckles are arranged in a one-to-one correspondence and the buckles are fixedly connected to the connecting ears.

[0008] According to some embodiments of the present invention, the sealing cap has a limiting groove on the bottom surface of the connecting ear, the buckle includes a connecting part and a fastening part, the shape of the connecting part matches the shape of the limiting groove and is embedded in the limiting groove, and the fastening part is integrally connected to the connecting part and is used to fasten and cooperate with the container.

[0009] According to some embodiments of the present invention, the sealing cap has two fastening parts, which are arranged at intervals along the length of the connecting part.

[0010] According to some embodiments of the present invention, the sealing cap has an L-shaped fastening portion.

[0011] According to some embodiments of the present invention, a positioning structure is provided between the buckle and the connecting ear to position the buckle.

[0012] According to some embodiments of the present invention, the sealing cover includes a positioning structure comprising a first positioning post disposed on the buckle and a first positioning hole disposed on the connecting ear, wherein the first positioning post and the first positioning hole are inserted into each other.

[0013] According to some embodiments of the present invention, the sealing cover includes a second positioning hole disposed in the buckle and a second positioning post disposed in the connecting ear, wherein the second positioning post is inserted into the second positioning hole.

[0014] According to some embodiments of the present invention, the sealing cover has a lifting part on the side of the connecting ear away from the center of the main body. The lifting part is integrally connected to the connecting ear and is raised.

[0015] The food storage container according to this utility model includes the sealing lid described in this utility model.

[0016] The food storage container according to this utility model has at least the following beneficial effects: by combining the sealing cap with the above-mentioned excellent sealing performance, structural stability and durability with the container, the overall sealing effect and service life of the food storage container are significantly improved. It solves the problem of weak sealing caused by deformation of the sealing cap or loosening of the buckle in existing food storage containers, meets the user's needs for efficient preservation, long-term durability and convenient operation, and has significant market application value and competitive advantage.

[0017] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0018] The above and / or additional aspects and advantages of this utility model will become apparent and readily understood from the description of the embodiments taken in conjunction with the following drawings, in which: Figure 1 This is a schematic diagram of the sealing cap structure according to an embodiment of the present utility model; Figure 2 This is a partial exploded view of the sealing cap according to an embodiment of the present invention; Figure 3 This is a schematic diagram of the buckle structure of the sealing cap in an embodiment of this utility model; Figure 4 This is a schematic diagram of the structure of a food storage container with a sealing lid according to an embodiment of the present invention.

[0019] Explanation of icon numbers: Main body 100; glass plate 110; sealing ring 120; connecting ear 130; limiting groove 1301; first positioning hole 1302; second positioning post 1303; lifting part 131; Buckle 200; First positioning post 201; Second positioning hole 202; Connecting part 210; Fastening part 220. Detailed Implementation

[0020] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this utility model, and should not be construed as limiting this utility model.

[0021] In the description of this utility model, it should be understood that the directional descriptions, such as up, down, front, back, left, right, etc., indicate the directional or positional relationship based on the directional or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0022] In the description of this utility model, "several" means one or more, "multiple" means two or more, "greater than," "less than," and "exceeding" are understood to exclude the stated number, while "above," "below," and "within" are understood to include the stated number. If "first" or "second" is used in the description, it is only for the purpose of distinguishing technical features and should not be construed as indicating or implying relative importance, or implicitly indicating the number of indicated technical features, or implicitly indicating the order of the indicated technical features.

[0023] In the description of this utility model, unless otherwise explicitly defined, terms such as "setting," "installation," and "connection" should be interpreted broadly, and those skilled in the art can reasonably determine the specific meaning of the above terms in this utility model in conjunction with the specific content of the technical solution.

[0024] In the description of this utility model, the terms "one embodiment," "some embodiments," "illustrative embodiment," "example," "specific example," or "some examples," etc., refer to specific features, structures, materials, or characteristics described in connection with that embodiment or example, which are included in at least one embodiment or example of this utility model. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0025] Most food storage container lids on the market are currently made from a single piece of plastic through a one-piece molding process. This type of pure plastic sealing lid has significant drawbacks in actual use. While plastic itself possesses a certain degree of flexibility and elasticity, it is prone to irreversible deformation during prolonged and frequent opening and closing, especially under significant temperature changes or external pressure. This deformation increases the gap between the lid and the container, resulting in a significant decrease in sealing performance. This makes it difficult to effectively prevent the leakage of gas or liquid from the container, failing to meet users' needs for long-term stable sealing.

[0026] Therefore, such as Figures 1 to 3As shown, the sealing cap proposed in this utility model includes a main body 100 and two snap fasteners 200 disposed on the main body 100. Specifically, the main body 100 includes a glass plate 110 and a sealing ring 120. The sealing ring 120 is made of silicone and is sealed to the periphery of the glass plate 110. The sealing ring 120 is used to seal with the container lid. Further, the two snap fasteners 200 are symmetrically arranged on both sides of the sealing ring 120. The snap fasteners 200 are plastic parts, and are fixed to the sealing ring 120 by ultrasonic welding. The snap fasteners 200 can be rotatably fastened to both sides of the container. It should be noted that the main body 100 is designed with a structure in which the glass plate 110 and the silicone sealing ring 120 are sealed together. The high elasticity and conformability of the silicone material allow the sealing ring 120 to fit tightly against the container, effectively enhancing the sealing effect and preventing leakage of the contents. At the same time, the glass plate 110 provides stable support and a visible structure. The plastic buckles 200 arranged symmetrically on both sides are fixed to the sealing ring 120 by ultrasonic welding. This not only ensures the stability of the buckle 200 connection, but also allows the plastic buckles 200 to be rotated and fastened to both sides of the container, realizing convenient and quick opening and closing operations. This effectively solves the problems of easy deformation and poor sealing of existing pure plastic food storage container lids.

[0027] Refer to Figure 1 In some embodiments of this utility model, connecting ears 130 are symmetrically arranged on both sides of the sealing ring 120. The connecting ears 130 are made of silicone and are integrally connected to the sealing ring 120. The connecting ears 130 and the buckles 200 are arranged in a one-to-one correspondence, and the buckles 200 are fixedly connected to the connecting ears 130. In this way, the silicone connecting ears 130 can buffer the stress concentration when the buckles 200 are subjected to force, preventing the plastic buckles 200 from breaking or loosening at the connection between the sealing ring 120 and the plastic buckles 200 due to long-term opening and closing. At the same time, the symmetrically arranged connecting ears 130 ensure that the buckles 200 are subjected to balanced force, further improving the stability and sealing durability of the overall structure of the sealing cover. Further, referring to... Figure 2In some embodiments of this utility model, a limiting groove 1301 is formed on the bottom surface of the connecting ear 130. The buckle 200 includes a connecting part 210 and a fastening part 220. The shape of the connecting part 210 matches the shape of the limiting groove 1301 and is embedded in the limiting groove 1301. The fastening part 220 is integrally connected to the connecting part 210 and is used to fasten with the container. Furthermore, the installation and engagement of the buckle 200 and the connecting ear 130 are more precise. The limiting groove 1301 can effectively limit the lateral displacement of the buckle 200, preventing the buckle 200 from shifting or shaking during opening and closing. At the same time, the integral connection of the fastening part 220 and the connecting part 210 ensures the continuity of force transmission, further improving the stability of the buckle 200 fastening and the durability of the sealing cap, avoiding sealing failure caused by buckle 200 displacement. In some applications, after the connecting part 210 is embedded in the limiting groove 1301, ultrasonic welding is performed on the periphery of the connecting part 210 to drive the connecting part 210 to be fixed with the connecting ear 130. Additionally, in some embodiments of this invention, there are two fastening parts 220, which are arranged at intervals along the length of the connecting part 210. The double fastening part 220 design significantly increases the contact area and fastening stability between the buckle 200 and the container sidewall, disperses the force during opening and closing, avoids deformation or breakage of the buckle 200 due to single-point force, and further improves the firmness and sealing reliability of the sealing cap. Optionally, the fastening part 220 is L-shaped. The L-shaped structure can provide a larger fastening contact surface and a stronger fastening force. At the same time, the L-shaped corner design can effectively resist the torsional force during the opening and closing process, prevent the buckle 200 from loosening due to deformation under force, significantly improve the interlocking strength between the buckle 200 and the side wall of the container, and further enhance the firmness and sealing durability of the sealing cap, which is especially suitable for food storage containers that need to be opened and closed frequently.

[0028] In some embodiments of this utility model, a positioning structure is provided between the buckle 200 and the connecting ear 130 to position the buckle 200. This ensures that the buckle 200 maintains the correct position during installation and use, preventing offset of the buckle 200 due to assembly errors or long-term use. This improves the accuracy and stability of the connection between the buckle 200 and the sealing ring 120. Simultaneously, the positioning structure simplifies the assembly process, improves production efficiency, and further guarantees the overall performance and sealing reliability of the sealing cover. Specifically, in some embodiments of this utility model, such as... Figure 2As shown, the positioning structure includes a first positioning post 201 disposed on the snap fastener 200 and a first positioning hole 1302 disposed on the connecting ear 130. The first positioning post 201 and the first positioning hole 1302 are inserted into each other. Precise positioning is achieved through this insertion engagement. This structure is simple and reliable, effectively preventing the snap fastener 200 from rotating or shifting during assembly and use. Furthermore, the insertion engagement facilitates disassembly and replacement, improving the maintainability and service life of the sealing cover, and further ensuring the stability of the connection between the snap fastener 200 and the sealing ring 120 and the durability of the sealing performance. Further, referring to… Figure 2 and Figure 3 The positioning structure includes a second positioning hole 202 disposed in the buckle 200 and a second positioning post 1303 disposed in the connecting ear 130, with the second positioning post 1303 engaging with the second positioning hole 202. This engagement achieves bidirectional positioning, which, compared to unidirectional positioning, further enhances the stability of the connection between the buckle 200 and the connecting ear 130. It can resist greater lateral and torsional forces, preventing the buckle 200 from loosening or deforming due to uneven force distribution. This significantly enhances the overall structural strength and sealing reliability of the sealing cap, making it particularly suitable for frequently used food storage containers.

[0029] Refer to Figure 1 and Figure 2 In some embodiments of this utility model, a lifting part 131 is provided on the side of the connecting ear 130 away from the center of the main body 100. The lifting part 131 is integrally connected with the connecting ear 130. The lifting part 131 is raised, which makes it easy for the user to easily pry open the buckle 200 with their fingers, improving the convenience of opening and closing operations. At the same time, the raised structure conforms to the ergonomic design, reduces the force required to open the cover, and avoids damage to the sealing ring 120 or buckle 200 caused by excessive force when opening the cover, further improving the service life of the sealing cover and the user experience.

[0030] Refer to Figure 4 The food storage container according to an embodiment of the present invention includes a sealing cap according to an embodiment of the present invention. By combining the sealing cap, which possesses excellent sealing performance, structural stability, and durability, with the container, the overall sealing effect and service life of the food storage container are significantly improved. This solves the problem of insecure sealing caused by deformation of the sealing cap or loosening of the buckle in existing food storage containers, meeting users' needs for efficient preservation, long-term durability, and convenient operation, and possessing significant market application value and competitive advantages.

[0031] Other components and operations of the food storage container according to the embodiments of this utility model are known to those skilled in the art and will not be described in detail here.

[0032] The embodiments of the present utility model have been described in detail above with reference to the accompanying drawings. However, the present utility model is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of the present utility model.

Claims

1. A sealing cap, characterized in that, include: The main body includes a glass plate and a sealing ring, wherein the sealing ring is made of silicone and is sealed to the periphery of the glass plate, and the sealing ring is used to seal with the container lid; Two buckles are symmetrically arranged on both sides of the sealing ring. The buckles are plastic parts and are fixed to the sealing ring by ultrasonic welding. The buckles can be rotated and fastened to both sides of the container. The sealing ring has symmetrical connecting ears on both sides. The connecting ears are made of silicone and are integrally connected to the sealing ring. The connecting ears are arranged one-to-one with the buckles. A positioning structure is provided between the buckles and the connecting ears to position the buckles. The buckles are fixedly connected to the connecting ears. A limiting groove is formed on the bottom surface of the connecting ears. The buckles include a connecting part and a fastening part. The shape of the connecting part matches the shape of the limiting groove and is embedded in the limiting groove. The fastening part is integrally connected to the connecting part and is used to fasten and cooperate with the container.

2. The sealing cap according to claim 1, characterized in that: There are two fastening parts, and the two fastening parts are arranged at intervals along the length direction of the connecting part.

3. The sealing cap according to claim 2, characterized in that: The fastening part is L-shaped.

4. The sealing cap according to claim 1, characterized in that: The positioning structure includes a first positioning post disposed on the buckle and a first positioning hole disposed on the connecting ear, wherein the first positioning post and the first positioning hole are inserted into each other.

5. The sealing cap according to claim 1 or 4, characterized in that: The positioning structure includes a second positioning hole disposed in the buckle and a second positioning post disposed in the connecting ear, wherein the second positioning post is inserted into the second positioning hole.

6. The sealing cap according to claim 1, characterized in that: The connecting ear has a hinged part on the side away from the center of the main body. The hinged part is integrally connected to the connecting ear and is tilted upwards.

7. A food storage container, characterized in that: Includes the sealing cap as described in any one of claims 1 to 6.

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