A sealed can

Abstract

A sealed tank comprises a tank body and a tank cover arranged on an opening of the tank body, a first sealing element is arranged between the tank body and the tank cover, at least one side or one corner of the opening edge of the tank body is formed with an inclined portion which is inclined downward from top to bottom, the tank cover is formed with an inclined area corresponding to the inclined portion, a slanting downward discharge port which communicates with the inside of the tank body is arranged in the inclined area, the tank cover is provided with a sealing cover which can open and close the discharge port, and a second sealing element is arranged between the sealing cover and the discharge port. By arranging the inclined portion on the opening edge of the tank body, arranging the corresponding inclined area and the slanting downward discharge port on the tank cover, and arranging the sealing cover with the second sealing element, the discharge port has a flow guide angle due to the inclined design of the inclined portion and the inclined area, so that the pouring flow can be accurately controlled, the spilling and leakage can be reduced, the container inclination angle can be reduced to improve the operation convenience, and the discharge port can be opened and closed separately by the sealing cover, so that the tank cover is not opened frequently, the sealed environment in the tank is maintained, and the diversified use requirements are met.

Description

Technical Field

[0001] This utility model relates to the field of sealed container technology, and in particular to a sealed can. Background Technology

[0002] In the field of container technology, airtight containers are widely used in food storage, kitchen organization, and other scenarios. Traditional airtight containers use a flat single opening combined with a flat press-sealed structure, which reveals inconvenience in pouring and inability to adapt to diverse retrieval needs in actual use.

[0003] Taking the Chinese utility model patent "A Sealing Can with Effort-Saving Operation" (application number CN202220765384.6, authorization announcement number CN217075471U) as an example, it achieves a sealing structure of pressing and locking and rotating opening through the cooperation of a slot and a block. The tight connection between the flat sealing ring and the sealing groove improves the sealing performance between the can body and the lid, and reduces the opening and closing torque to a certain extent. However, this solution still adopts a traditional flat opening design, which has significant technical bottlenecks in terms of adaptability to material pouring and retrieval scenarios.

[0004] The sealed container opening structure in this comparative document has the following core defects: First, the flat opening lacks a flow guiding angle, making it easy for users to spill when pouring small amounts of material due to the opening being too large. When pouring viscous materials, uneven flow rate and flow interruption often occur, making it impossible to accurately control the flow rate. Second, the flat opening requires the container to be tilted significantly or even inverted to complete the pouring. Material impacting the edge of the opening increases the risk of spillage, making it inconvenient to operate, especially for elderly users or those with less strength. Third, the single flat opening design requires the entire lid to be fully opened each time, causing the food inside the container to be frequently exposed to air, damaging the sealing environment, and failing to meet the diverse needs of "precise small-volume retrieval" and "rapid large-volume pouring".

[0005] In summary, although existing technologies have optimized the convenience of opening and closing operations through the slot structure, they have not innovated the opening shape. The inherent defects of the flat opening have led to problems such as difficulty in tilting control and poor adaptability to different scenarios, which have not yet been solved.

[0006] Therefore, how to improve the ease of pouring and achieve diversified retrieval functions through innovative design of the opening structure while ensuring sealing reliability has become a technical problem that urgently needs to be solved by those skilled in the art. Utility Model Content

[0007] The technical problem to be solved by this utility model is to provide a sealed can that achieves overall sealing of the can lid while also providing convenient pouring and diverse retrieval needs, in light of the above-mentioned existing technology.

[0008] The technical solution adopted by this utility model to solve the above-mentioned technical problems is as follows: The sealed tank includes a tank body and a tank cover provided on the opening of the tank body. A first sealing element for sealing is provided between the tank body and the tank cover. At least one side or one corner of the opening edge of the tank body forms an inclined portion that slopes downward from top to bottom. An inclined area corresponding to the inclined portion is formed on the tank cover. A downward-sloping discharge port is opened in the inclined area and communicates with the interior of the tank body. A sealing cover that can open and close the discharge port is provided on the tank cover, and a second sealing element for sealing is provided between the sealing cover and the discharge port.

[0009] To improve the sealing effect between the sealing cap and the discharge port and make the structure more reliable, preferably, the sealing cap is provided with a plugging part that can extend into the discharge port, and the second sealing element is an elastic sealing ring sleeved on the outer periphery of the plugging part, and an annular gap adapted to the elastic sealing ring is formed between the plugging part and the inner wall of the discharge port.

[0010] To facilitate the installation and fixation of the elastic sealing ring and ensure that it will not fall off during use, preferably, the outer circumferential surface of the sealing part is provided with an annular groove, and the elastic sealing ring is fixed in the annular groove.

[0011] To make the sealing cap close more smoothly and enhance the cooperation with the elastic sealing ring, preferably, a guide slope is formed on the upper edge of the discharge port. When the sealing cap is closed, the elastic sealing ring slides into the discharge port along the guide slope and forms a sealing fit with the inner wall of the discharge port.

[0012] In order to improve the sealing performance between the tank body and the tank lid, and at the same time achieve the positioning function, so as to facilitate installation and disassembly, preferably, the bottom of the tank lid extends downward to have an extension portion adapted to the inner side of the opening edge of the tank body, and the first sealing element is an irregular sealing ring surrounding the outer periphery of the extension portion.

[0013] At least one positioning part extends from the irregularly shaped sealing ring, and a positioning hole adapted to the positioning part is provided on the extension of the can lid.

[0014] To make the connection between the sealing cap and the can lid more secure and to facilitate the opening and closing of the discharge port by the sealing cap, preferably, a hinge is provided at the junction of the inclined area and the top surface of the can lid; the sealing cap can be flipped and connected to the can lid through the hinge to realize the opening and closing of the discharge port.

[0015] To ensure that the sealing cap remains flush with the upper surface of the can lid when closed, thus guaranteeing an aesthetically pleasing appearance and avoiding inconvenience caused by protrusion, the can lid is preferably square in shape. The bottom of the sealing cap has two mutually perpendicular positioning sidewalls that correspond to the adjacent sidewalls of the can lid. The bottom of the positioning sidewalls forms an abutting slope that matches the inclination of the inclined area. When the can lid is closed, the abutting slope fits against the inclined area, so that the upper surface of the sealing cap remains flush with the upper surface of the can lid.

[0016] To ensure that the sealing cap cannot be easily opened when closed and to improve the safety and reliability of use, preferably, a fastening structure for locking the sealing cap is provided between the can lid and the sealing cap, the fastening structure including a groove or buckle provided on the inclined area;

[0017] Corresponding buckles or slots are provided on the positioning sidewall.

[0018] In order to make the shapes of the inclined part, the inclined area and the discharge port adapt to each other to meet different usage requirements, preferably, when a rectangular inclined part with a downward inclination is formed on one side of the opening edge of the tank, the inclined area is rectangular and the discharge port is a corresponding rectangle;

[0019] When a corner of the opening edge of the tank forms a triangular inclined portion sloping downwards, the inclined area is triangular, and the discharge port is a corresponding triangle.

[0020] To achieve multiple uses from a single can and meet diverse storage and retrieval needs, preferably, the can lid is provided with multiple independent inclined areas, each inclined area has an independent discharge port, each discharge port is equipped with an independent sealing cap, and the can body is provided with partitioned chambers corresponding to each discharge port.

[0021] Compared with the prior art, the advantages of this utility model are as follows: By forming an inclined portion that slopes downwards from top to bottom on at least one side or one corner of the opening edge of the tank, forming an inclined area on the tank cover corresponding to the inclined portion, and opening a downward-sloping discharge port that connects to the inside of the tank within the inclined area, a sealing cap that can open and close the discharge port is provided on the tank cover, and a second sealing element for sealing is provided between the sealing cap and the discharge port. Due to the setting of the inclined portion and the inclined area, the discharge port has a guiding angle, so the flow rate can be precisely controlled when pouring materials, reducing spillage. Especially when pouring small amounts or viscous materials, it can effectively avoid problems such as uneven flow rate and flow interruption. At the same time, it is not necessary to tilt the tank significantly or even invert it, reducing the risk of spillage caused by materials impacting the opening edge, improving the ease of operation, and being more user-friendly for elderly users or those with less strength. In addition, the discharge port can be opened separately through the sealing cap without having to fully open the entire tank cover, reducing the frequency of the material inside the tank being exposed to air, better maintaining the sealed environment, thus achieving adaptation to diverse scenario needs such as "precise small-volume dispensing" and "rapid large-volume pouring". Attached Figure Description

[0022] Figure 1 This is a three-dimensional structural diagram of Example 1 (with the sealing cap in a closed state);

[0023] Figure 2 This is a three-dimensional structural diagram of Example 1 (with the sealing cap in the open state);

[0024] Figure 3 This is a schematic diagram of the decomposition state of Example 1;

[0025] Figure 4 This is a cross-sectional structural diagram of Example 1;

[0026] Figure 5 This is a schematic diagram of the bottom view structure of the sealing cap in Example 1;

[0027] Figure 6 This is a cross-sectional view of the first sealing element when it is fitted with the can lid in Example 1;

[0028] Figure 7 This is a three-dimensional structural schematic diagram of Example 2;

[0029] Figure 8 This is a schematic diagram of the decomposition state of Example 2. Detailed Implementation

[0030] The present invention will be further described in detail below with reference to the accompanying drawings and embodiments.

[0031] Figures 1-6The diagram shown is a schematic diagram of Embodiment 1. The sealed container provided in Embodiment 1 mainly includes components such as container body 1, container lid 2, first sealing element 3, sealing cap 4 and second sealing element 5. Each component achieves sealing and convenient access functions through specific structural design.

[0032] The specific structure of each component is as follows:

[0033] Tank 1: Reference Figures 1 to 3 As shown, a downward-sloping inclined portion 1a is formed at one corner of the opening edge of the tank body 1. This inclined portion 1a is formed by cutting downwards at one corner of the opening edge of the tank body 1, thus creating a triangular inclined portion 1a. The cut surface can be a plane or an arc surface. The interior can be provided with a partitioned chamber corresponding to the discharge port 2b as needed. The apex of the triangular inclined portion 1a can adopt a rounded transition design to reduce stress concentration. At the same time, the triangular structure can generate a radial component force to assist sealing when under stress.

[0034] Can lid 2: Reference Figures 1 to 3 As shown, the lid fits over the opening of the tank body 1, with an extension 2c extending downwards from the bottom and fitting inside the edge of the opening of the tank body 1. A shaped sealing ring serves as the first sealing element 3 around the extension 2c. An inclined region 2a corresponding to the inclined portion 1a of the tank body 1 is formed on the lid 2. A discharge port 2b, communicating with the interior of the tank body 1 and arranged obliquely downwards, is opened within the inclined region 2a. A guide slope 2b1 is formed on the upper edge of the discharge port 2b. The lid 2 here has a square structure, and a hinge portion 7 is provided at the junction of the inclined region 2a and the top surface of the lid 2. The extension 2c of the lid 2 also has a positioning hole 1b.

[0035] First seal 3: Reference Figure 3 and Figure 6 As shown, the first sealing element 3 is an irregularly shaped sealing ring surrounding the outer periphery of the extension 2c of the can lid 2. The irregular shape here refers to the fact that the upper and lower end faces of the sealing ring are not on a pure plane, but are an irregular contour formed by following the edge contour of the inclined region 2a. The first sealing element 3 also extends at least one positioning part 3a, which is adapted to the positioning hole 1b on the extension 2c of the can lid 2, so that the first sealing element 3 is stably fixed on the extension 2c of the can lid 2, preventing the first sealing element 3 from circumferentially moving and axially moving. At the same time, the extension 2c is also provided with a groove for the first sealing element 3.

[0036] Sealing cap 4: Reference Figure 2 , Figure 3 and Figure 6As shown, the sealing cap 4 is rotatably connected to the inclined area 2a of the can lid 2 via the hinge 7, and is used to open and close the discharge port 2b. The sealing cap 4 is provided with a sealing part 4a that can extend into the discharge port 2b. The sealing part 4a can be integrally formed on the sealing cap 4, or it can be set separately and then fixed by ultrasonic welding or other fixing methods. The outer peripheral surface of the sealing part 4a is provided with an annular groove 4a1. The bottom of the sealing cap 4 is provided with two mutually perpendicular positioning sidewalls 4b that correspond to the adjacent sidewalls of the can lid 2. The bottom of the positioning sidewalls 4b forms an abutment slope 4b1 that matches the slope of the inclined area 2a.

[0037] Second seal 5: Reference Figure 3 and Figure 4 As shown, the second sealing element 5 is an elastic sealing ring fitted onto the outer periphery of the sealing cap 4's sealing portion 4a, and fixed within the annular groove 4a1 of the sealing portion 4a. An annular gap 6, adapted to the elastic sealing ring, is formed between the sealing portion 4a and the inner wall of the discharge port 2b.

[0038] 8-link fastening structure: Reference Figure 2 and Figure 4 As shown, the fastening structure 8 is located between the can lid 2 and the sealing cap 4. It includes a slot 8a on the inclined area 2a and a buckle 8b correspondingly located on the positioning side wall 4b, for locking the sealing cap 4. Of course, we can also choose to set the buckle directly on the inclined area 2a and the slot correspondingly located on the positioning side wall 4b.

[0039] The connection methods of each component are as follows:

[0040] Connection between tank body 1 and tank lid 2: Reference Figure 4 As shown, the extension 2c of the can lid 2 is inserted into the inner side of the opening edge of the can body 1. The irregular sealing ring is located between the outer periphery of the extension 2c and the inner wall of the opening of the can body 1, and the seal is achieved by the elastic deformation of the irregular sealing ring. The positioning part 3a of the irregular sealing ring is inserted into the positioning hole 1b on the extension 2c of the can lid 2 to achieve the positioning and installation of the can lid 2 and the can body 1.

[0041] Connection between sealing cap 4 and can lid 2: Reference Figure 4 As shown, the sealing cap 4 is hinged to the top of the inclined area 2a of the can lid 2 via the hinge part 7, allowing the sealing cap 4 to be flipped around the hinge part 7. The specific structure of the hinge part 7 can be a pin connection, a hinge connection, etc., to achieve the flipping connection. When the sealing cap 4 is closed, the abutting inclined surface 4b1 of the positioning side wall 4b fits against the inclined area 2a, making the upper surface of the sealing cap 4 flush with the upper surface of the can lid 2. At the same time, the buckle 8a and the slot 8b of the fastening structure 8 engage with each other, firmly locking the sealing cap 4.

[0042] Sealing connection between sealing cap 4 and outlet 2b: Refer to Figure 4As shown, the sealing part 4a of the sealing cap 4 extends into the discharge port 2b, and the elastic sealing ring fitted around the outer periphery of the sealing part 4a is located in the annular gap 6 between the sealing part 4a and the inner wall of the discharge port 2b. During the closing process of the sealing cap 4, the elastic sealing ring slides into the discharge port 2b along the guide slope 2b1 of the upper edge of the discharge port 2b, and is tightly pressed against the inner wall of the discharge port 2b to form a sealing fit. When the sealing cap 4 is in the sealed state, the elastic sealing ring fills the annular gap 6 to form a non-planar dynamic sealing structure with radial elastic compensation function. This structure compensates for the micro-unevenness of the sealing surface through the radial compression deformation of the elastic sealing ring, and can maintain sealing reliability even if the component is slightly deformed.

[0043] The working principle of the sealed container in Example 1 is as follows:

[0044] During sealing: Between the tank body 1 and the tank cover 2, the irregularly shaped sealing ring on the outer periphery of the extension 2c of the tank cover 2 is in close contact with the inner wall of the opening of the tank body 1. With the positioning structure of the positioning part 3a inserted into the positioning hole 1b, the first seal is formed to prevent external air from entering the tank body. Between the discharge port 2b and the sealing cover 4, the sealing part 4a of the sealing cover 4 is inserted into the discharge port 2b. The elastic sealing ring slides into the annular gap 6 along the guide slope 2b1. Through radial elastic compression, it forms a non-planar dynamic seal with the inner wall of the discharge port 2b, forming the second seal, which effectively prevents material leakage or air intrusion. The structural design of the triangular inclined part 1a can help enhance the radial pressure of the sealing surface when under force, thereby improving the overall sealing effect.

[0045] When dispensing: In scenarios requiring small, precise dispensing, there is no need to open the entire can lid 2; simply open the sealing cap 4. The downward-sloping triangular discharge port 2b, due to its flow-guiding angle design, allows for precise flow control, preventing spillage when dispensing small amounts or viscous materials. If a large amount of material needs to be dispensed, the can lid 2 can be opened entirely. The inclined portion 1a at the edge of the opening of the can body 1 can also guide the material to flow out smoothly without significantly tilting the can body, reducing the risk of spillage due to material impacting the opening edge. The triangular opening design also makes it easy to insert tools to pry open the lid, reducing operational effort and improving convenience.

[0046] Example 2

[0047] Figure 7 and Figure 8The diagram shown is of Embodiment 2. The opening and sealing structures in Embodiment 2 are consistent with those in Embodiment 1. The main difference is that an inclined portion 1a is formed on one side of the opening edge, and the two sides of the tank body 1 are cut downwards at an angle. The cut surface can be a plane or an arc surface, so that the inclined portion 1a forms a rectangle. The inclined area 2a and the discharge port 2b on the tank cover 2 are both rectangular structures, which are suitable for the rapid pouring of large granular materials, such as rice and beans. At the same time, the downward-sloping discharge port 2b can also achieve small-volume use by controlling the tilt angle, which meets the functional requirements of achieving small-volume accurate use and large-volume rapid pouring of large granular materials.

[0048] In Embodiments 1 and 2, we can also provide multiple independent inclined areas 2a and discharge ports 2b on the can lid 2, which are used in conjunction with multiple partitioned chambers inside the can body 1. These partitioned chambers can be formed by multiple partitions inside the can body 1. Each discharge port 2b is equipped with an independently opening and closing sealing cover 4, enabling the classified storage and retrieval of various materials to meet diverse needs. A schematic diagram of the sealed can structure with multiple independent inclined areas 2a and discharge ports 2b is not shown in the accompanying drawings of Embodiments 1 and 2. Additionally, we can also provide a transparent glass panel on the can lid 2 to facilitate a clear view of the inside of the can body 1 and to monitor the material status at any time.

[0049] It should be noted that in the descriptions of Embodiments 1 and 2, the terms "front," "rear," "left," "right," "inner," "outer," "upper," and "lower," etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings. They are used merely for the convenience of describing the invention and for 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 the invention. The terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication between two elements. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

Claims

1. A sealed container, comprising a container body (1) and a container lid (2) disposed on the opening of the container body (1), wherein a first sealing element (3) for sealing is provided between the container body (1) and the container lid (2), characterized in that: At least one side or corner of the opening edge of the tank body (1) is formed with an inclined portion (1a) that slopes downward from top to bottom. The tank cover (2) is formed with an inclined area (2a) corresponding to the inclined portion (1a). An inclined outlet (2b) that communicates with the interior of the tank body (1) is provided in the inclined area (2a). The tank cover (2) is provided with a sealing cover (4) that can open and close the outlet (2b). A second sealing element (5) for sealing is provided between the sealing cover (4) and the outlet (2b).

2. The sealed container according to claim 1, characterized in that: The sealing cover (4) is provided with a sealing part (4a) that can extend into the discharge port (2b). The second sealing member (5) is an elastic sealing ring sleeved on the outer periphery of the sealing part (4a). An annular gap (6) adapted to the elastic sealing ring is formed between the sealing part (4a) and the inner wall of the discharge port (2b).

3. The sealed container according to claim 2, characterized in that: The outer circumferential surface of the sealing part (4a) is provided with an annular groove (4a1), and the elastic sealing ring is fixed in the annular groove (4a1).

4. The sealed container according to claim 2, characterized in that: The upper edge of the discharge port (2b) is formed with a guide slope (2b1). When the sealing cover (4) is closed, the elastic sealing ring slides into the discharge port (2b) along the guide slope (2b1) and forms a sealing fit with the inner wall of the discharge port (2b).

5. The sealed container according to claim 1, characterized in that: The bottom of the can lid (2) extends downward to an extension (2c) adapted to the inner side of the opening edge of the can body (1), and the first sealing member (3) is a shaped sealing ring surrounding the outer periphery of the extension (2c). At least one positioning part (3a) extends from the irregular sealing ring, and the extension part (2c) of the can lid (2) is provided with a positioning hole (1b) that matches the positioning part (3a).

6. The sealed container according to any one of claims 1 to 5, characterized in that: A hinge (7) is provided at the junction of the inclined area (2a) and the top surface of the can lid (2); The sealing cap (4) is connected to the can lid (2) in a flip-up manner via the hinge (7) to open and close the discharge port (2b).

7. The sealed container according to claim 1, characterized in that: The can lid (2) has a square structure. The bottom of the sealing cover (4) is provided with two positioning sidewalls (4b) that are perpendicular to each other and correspond to the adjacent sidewalls of the can lid (2). The bottom of the positioning sidewall (4b) has an abutting slope (4b1) that matches the slope of the inclined area (2a). When the can lid (2) is closed, the abutting inclined surface (4b1) fits against the inclined area (2a), so that the upper surface of the sealing cap (4) and the upper surface of the can lid (2) remain flush and coplanar.

8. The sealed container according to claim 7, characterized in that: A locking structure (8) for locking the sealing cap (4) is provided between the can lid (2) and the sealing cap (4), the locking structure (8) including A slot (8a) or buckle is provided on the inclined area (2a); Corresponding to the buckle (8b) or slot provided on the positioning sidewall (4b).

9. The sealed container according to claim 1, characterized in that: When a rectangular inclined portion is formed on one side of the opening edge of the tank (1) from top to bottom, the inclined area (2a) is rectangular, and the discharge port (2b) is a corresponding rectangle. When a corner of the opening edge of the tank (1) forms a triangular inclined portion that slopes downwards, the inclined area (2a) is triangular, and the discharge port (2b) is a corresponding triangle.

10. The sealed container according to claim 1, characterized in that: The can lid (2) is provided with multiple independent inclined areas (2a), each inclined area (2a) is provided with an independent discharge port (2b), each discharge port (2b) is provided with an independent sealing cap (4), and the can body (1) is provided with a partitioned chamber corresponding to each discharge port (2b).

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