CONTAINER AND A COVER HAVING A SEALING STRUCTURE

A container and a cover having a sealing structure includes: the container including a bottom and a side wall having one end connected to the bottom to form a space, and another end of the side wall that is not connected to the bottom is an open end, the side wall having an inner surface and an outer surface, the inner surface faces the space, and the inner surface has a first hook portion; and the cover disposed at the open end of the container, the cover has a covering portion and a second hook portion, the covering portion covers the open end, and the second hook portion is hooked on the first hook portion. The covering portion tightly covers the open end, and the second hook portion is hooked to the first hook portion, so that the coupling between the cover and the container is more stable.

BACKGROUND

Field of the Invention

The present invention relates to a sealing structure, and more particularly to a container and a cover having a sealing structure.

Related Prior Art

In order to prevent external dust and dirt from contaminating the food and drinks in the container, the opening of the container needs to be sealed with a cover. However, when the conventional cover is placed on the container, the fit between the cover and the container is low, which results in poor sealing. Furthermore, when the container is made of flexible soft material, the container will be easily deformed due to external force and the cover will fall off, or when the pressure in the container is generated due to the high temperature of food or drink, the cover will also fall off due to the pressure generated inside the container. Therefore, a sealing structure that allows the container to closely fit the cover is required.

SUMMARY

The present invention provides a container and a cover having a sealed structure, the objective of which is to enable the container and the cover to closely fit together.

To achieve the above objective, a container and a cover having a sealing structure provided by the invention comprises:

the container including a bottom and a side wall having one end connected to the bottom to form a space, and another end of the side wall that is not connected to the bottom is defined as an open end, the side wall having an inner surface and an outer surface, the inner surface faces the space, the outer surface is opposite to the inner surface, and the inner surface has a first hook portion;

the cover disposed at the open end of the container and made of a flexible material, wherein the cover has a covering portion and a second hook portion, the covering portion covers the open end, and the second hook portion is hooked on the first hook portion.

As can be seen from the foregoing, the covering portion tightly covers the open end, and the second hook portion is hooked to the first hook portion, so that the coupling between the cover and the container is more stable.

In a first embodiment of the invention, the covering portion includes an outer section, a top section and an inner section connected one another in sequence, the outer section is closely abutted against the outer surface, the inner section is closely abutted against the inner surface.

The cover has an abutting portion connected to the inner section, the abutting portion has an abutting surface facing the inner surface of the side wall, and the second hook portion is connected to the abutting portion.

The abutting surface and the inner surface are abutted against each other or separated as a pressure in the container changes.

It can be seen from the foregoing that the abutting portion faces the inner surface so that the pressure in the container can press the abutting portion and the side wall, thereby maintaining the tightness of the container and the cover. The pressure inside the container prevents the cover from detached. If you want to open the cover, you can only apply force to the cover. More specifically, you can hook the second hook portion to the first hook portion to make the coupling between the cover and the container more stable.

DETAILED DESCRIPTION

Referring toFIGS. 1-5, a container and a cover having a sealing structure in accordance with the present invention, comprises: the container10and the cover20.

The container10includes a bottom11and a side wall12having one end connected to the bottom11to form a space13, and another end of the side wall12that is not connected to the bottom11is defined as an open end121. The side wall12has an inner surface12A and an outer surface12B, the inner surface12A faces the space13, the outer surface12B is opposite to the inner surface12A, and the inner surface12A has a first hook portion14.

The cover20is provided at the open end121of the container10and is made of a flexible material. The cover20has a covering portion21and a second hook portion23, the covering portion21covers the open end121to form a fastening force, and the second hook portion23is hooked on the first hook portion14.

Preferably, the first hook portion14has a first stop surface141which faces the bottom11, and the second hook portion23has a second stop surface231which is abutted against the first stop surface141, so that the cover20is not easily separated from the container10.

Preferably, the first hook portion14and the second hook portion23are a concave-convex combination.

Preferably, the open end121has a fixing ring30made of a metal material to increase the strength of the open end121of the container10.

Preferably, the open end121has an end surface121A connected between the inner surface12A and the outer surface12B, and the covering portion21has a covering surface211closely abutted against the end surface121A to generate a tightening force.

In the first embodiment of the present invention, as shown inFIGS. 1 to 3, wherein:

The covering portion21includes an outer section21A, a top section21B and an inner section21C connected one another in sequence, the outer section21A is closely abutted against the outer surface12B, the inner section21C is closely abutted against the inner surface12A, thereby generating a fastening force, and the covering surface211is located on the top section21B.

The cover20has an abutting portion22connected to the inner section21C, the abutting portion22has an abutting surface221facing the inner surface12A of the side wall12, and the second hook portion23is connected to the abutting portion22.

By such arrangements, the abutting surface221and the inner surface12A are abutted against each other or separated as the pressure in the container10changes.

Preferably, a distance between the outer section21A and the inner section21C is a first distance D1, a width of the side wall12is a second distance D2, and an insertion space24is defined between the outer section21A and the inner section21C. Before the cover20is placed on the container10, that is, before the open end121is inserted in the insertion space24, the first distance D1is smaller than the second distance D2, since the cover20is made of a flexible material, therefore, when the open end121enters the insertion space24, the insertion space24will be slightly expanded, so that when the open end121fully enters the insertion space24, the insertion space24can assume a vacuum state, which makes the outer section21A and the inner section21C abutted more tightly against the side wall12.

As can be seen from the foregoing, when the temperature or steam in the space13generates pressure in the space13, the pressure toward the cover20will provide the force to detach the cover20, but the pressure toward the abutting portion22will push the abutting portion22to press closely against the side wall12to strengthen the sealing between the cover20and the container10. Since the pressure has no directionality, the pressure toward the upper edge of the cover20is equal to the pressure toward the abutting portion22, so that the forces of the components cancel each other, and as a result, the pressure inside the container10does not affect the sealing of the container10and the cover20.

A container and a cover having a sealing structure in accordance with the second embodiment of the present invention, as shown inFIG. 4, comprises: The covering portion21includes the outer section21A, the top section21B and the inner section21C connected one another in sequence, the outer section21A is closely abutted against the outer surface12B, the inner section21C is closely abutted against the inner surface12A, thereby generating a fastening force. The covering surface211is located on the top section21B, and the second hook portion23is connected to the inner section21C.

Preferably, a distance between the outer section21A and the inner section21C is a first distance D1, a width of the side wall12is a second distance D2, and an insertion space24is defined between the outer section21A and the inner section21C. Before the cover20is placed on the container10, that is, before the open end121is inserted in the insertion space24, the first distance D1is smaller than the second distance D2, since the cover20is made of a flexible material, therefore, when the open end121enters the insertion space24, the insertion space24will be slightly expanded, so that when the open end121fully enters the insertion space24, the insertion space24can assume a vacuum state, which makes the outer section21A and the inner section21C abutted more tightly against the side wall12.

A container and a cover having a sealing structure in accordance with the third embodiment of the present invention, as shown inFIG. 5, comprises: The covering portion21includes the top section21B and the inner section21C connected each other in sequence, the inner section21C is closely abutted against the inner surface12A to generate a fastening force, and the covering surface211is located on the top section21B.

The cover20has an abutting portion22connected to the inner section21C, the abutting portion22has an abutting surface221facing the inner surface12A of the side wall12, and the second hook portion23is connected to the abutting portion22.

By such arrangements, the abutting surface221and the inner surface12A are abutted against each other or separated as the pressure in the container10changes.