TWI813305B - Lid assembly and container with lid - Google Patents

Abstract

The invention relates to a cover assembly and a container with a cover. The container with a cover has the cover assembly and a container body. The cover assembly includes a cover body and a waterproof liner. The cover system is provided with an inner plug, and the inner plug can automatically An upper opening of the container body is embedded into the inner side of the container body; the waterproof liner is installed on the outer periphery of the inner plug to seal between the inner side of the container body and the inner plug; the inner periphery of the container body is A female threaded part is provided, which can be screwed with a male threaded part provided on the outer periphery of the inner plug, so that the cover body can block the upper end opening, and the cover body has an up and down direction from the relative position of the outer periphery of the inner plug. A first liquid flow groove and a second liquid flow groove are formed with incisions in the direction, and the sizes of the first liquid flow groove and the second liquid flow groove are different.

Description

Lid components and containers with lids

The invention relates to a cover assembly and a container with a cover.

Conventionally, a lidded container has been known to have a lid assembly (plug body), and by detachably attaching the lid assembly to a container body having an opening at the upper end, the upper end opening of the container body can be blocked (for example, , Japanese Patent Publication No. 2010-280402 and Japanese Patent Publication No. 2014-210136).

Following the above, such a cover assembly has a cover body, and the cover body is provided with an inner plug embedded in the inner side of the container body from the upper end opening of the container body with an opening; in addition, the cover assembly has a structure that allows The lid body is mounted by screwing a female threaded portion provided on the inner periphery of the container body with a male threaded portion provided on the outer periphery of the inner plug, and blocks the upper end opening. In addition, the cover body is provided with a liquid flow groove formed by cutting the entire outer periphery of the inner plug in the vertical direction.

For a lidded container with a lid assembly as described above, by tilting the container in a state where the female threaded portion and the male threaded portion are partially unscrewed, the container can be inserted through the liquid flow groove without removing the lid from the container body. Pour the beverage or liquid inside the body into a cup, etc.

When the beverage in the container body is poured into the cup, the amount of beverage flowing out through the liquid flow groove is adjusted by the degree or angle of the container body. At this time, factors such as the amount of beverage remaining in the container body may cause a surge in the beverage flowing out through the liquid flow groove, causing the beverage to scatter in all directions, or the beverage residue flowing out through the liquid flow groove may drip. Furthermore, when a pair of liquid flow grooves are provided on the outer periphery of the inner plug at opposite positions, in addition to the beverage flowing out through one of the liquid flow grooves, there may be beverage leaking out from the other liquid flow groove. The present invention is proposed in view of the above-mentioned conventional situation, and aims to provide a cover assembly that can easily adjust the beverage flowing out through the liquid flow channel; and to provide a container with a cover that can improve usability by having the aforementioned cover assembly.

One object of the present invention is to provide a lid assembly, which includes a lid body and a waterproof liner. The lid system is provided with an inner plug, and the inner plug can open an upper end opening of the container body from the upper end. is embedded into the inner side of the container body; and the waterproof liner is installed in a complete circle on the outer periphery of the inner plug to seal between the inner side of the container body and the inner plug; wherein, the inner periphery of the container body is A female thread portion is provided, which can be screwed with a male thread portion provided on an outer peripheral portion of the inner plug, so that the cover body can block the upper end opening, and the cover body has a relative position from the outer periphery of the inner plug. A first liquid flow groove and a second liquid flow groove are formed with incisions along the up and down direction. The sizes of the first liquid flow groove and the second liquid flow groove are different.

Optionally, the first liquid flow groove and the second liquid flow groove have different widths.

Optionally, the cross-sectional area of the first liquid flow groove is 10% to 70% of the cross-sectional area of the second liquid flow groove.

Optionally, the width of the first liquid flow groove is less than half of the width of the second liquid flow groove.

Optionally, the first liquid flow groove and the second liquid flow groove are each provided with a pair of side surfaces, each pair of side surfaces clamps its corresponding bottom surface, and the same pair of side surfaces stand parallel to each other.

Optionally, the first liquid flow groove and the second liquid flow groove respectively have a pair of side surfaces, and each pair of side surfaces is tangentially oriented to clamp both sides of its corresponding bottom surface at 90 degrees to 100 degrees. The angular range expands and erects in directions away from each other.

Optionally, the cover body has a crown protruding from the upper end side of the inner plug toward the outer circumference, and the crown is provided with a first recess corresponding to the first liquid flow groove, and a first recess corresponding to the second liquid flow groove. A second recessed portion of the groove.

Optionally, the first liquid flow groove and the second liquid flow groove are formed in a cutout manner on part of the lower surface side of the crown.

Another object of the present invention is to provide a container with a lid, which has a lid assembly as described above, and a container body mounted with the lid assembly.

Optionally, the container body has a vacuum insulated construction.

As described above, according to the present invention, a lid assembly can be provided that can easily adjust the amount of beverage flowing out through the liquid flow channel; and a container with a lid can be provided, and the usability can be improved by having the lid assembly as described above.

In order to facilitate the review committee to have a further understanding of the purpose, technical features and effects of the present invention, the detailed description is as follows:

The embodiments of the present invention will be described in detail below with reference to the drawings, and a lidded container 100 having a lid assembly 1 as shown in FIGS. 1 to 9 will be described in one embodiment of the present invention.

Figure 1 is a schematic three-dimensional view of the appearance of an insulated container according to an embodiment of the present invention; Figure 2 is a schematic cross-sectional view of the structure of the container with a lid; Figure 3 is a schematic cross-sectional view of the structure of the container with a lid in a blocked state; Figure 4 is a schematic cross-sectional view of the structure of the container with a lid; A schematic cross-sectional view of the structure of the container in an open state; Figure 5 is an exploded perspective view of one side of the container with a lid viewed from above; Figure 6 is an exploded perspective view of the other side of the container with a lid viewed from above; Figure 7 is an exploded perspective view of the other side of the lidded container viewed from below; Figure 8 is a cross-sectional schematic view of a section of the lid assembly taken along the horizontal direction, viewed from below; Figure 9 is a top view of the structure of the lid assembly. .

A lidded container 100 according to one embodiment of the present invention, as shown in FIGS. 1 and 2 , has a lid assembly 1 as in this embodiment, a container body 2 detachably mounted on the lid assembly 1, and The cup 3 can be detachably attached to the container body 2 while covering the lid assembly 1 .

The lidded container 100 is a beverage container that can keep the beverage or contents contained in the container body 2 warm or cold by using the container body 2 with a vacuum insulation structure.

Specifically, the container body 2 has an outer container 4 and an inner container 5 made of, for example, stainless steel and having a bottomed cylindrical shape. The container body 2 has a double-layered structure in which the opening sides of the outer container 4 and the inner container 5 are joined to each other in a state where the inner container 5 is housed inside the outer container 4 . In addition, a vacuum insulation layer 6 is provided between the outer container 4 and the inner container 5 . The vacuum insulation layer 6 is formed, for example, by sealing an exhaust hole provided in the center of the bottom surface of the outer container 4 in a chamber whose pressure is reduced to a high vacuum (vacuum suction).

The container body 2 has a substantially circular bottom portion 2a, a substantially cylindrical main body portion 2b raised from the outer periphery of the bottom portion 2a, and a substantially cylindrical head and neck portion 2c formed by reducing the diameter of the upper end of the main body portion 2b. In addition, the upper end opening of the head and neck portion 2c has a circular shape and serves as the upper end opening 2d of the container body 2.

The inner circumference of the head and neck portion 2c is smaller in diameter than the inner circumference of the main body portion 2b. In addition, a male thread portion 7 is provided on the outer periphery of the head and neck portion 2c. On the other hand, the internal thread portion 8 is provided on the inner circumference of the head and neck portion 2c. In addition, an overhanging portion 9 is provided below the female thread portion 8 and protrudes from the entire inner circumferential surface of the container body 2 .

The cup 3 is made of heat-resistant resin, such as polypropylene, and has a bottomed cylindrical shape as a whole, with a roughly circular bottom wall 3a, and upwards from around the bottom wall 3a (the direction shown in Figures 1 and 2 is in the direction of Bottom) The upright cylindrical peripheral wall portion 3b.

The cup 3 can be detachably mounted on the outside of the head and neck portion 2c of the container body 2 by screwing with the bottom wall portion 3a facing upward. Therefore, the inner peripheral portion of the peripheral wall portion 3 b is provided with the female thread portion 10 that can be screwed into the male thread portion 7 .

Although the lidded container 100 of this embodiment has a generally cylindrical appearance, the present invention does not specifically limit the appearance of the lidded container 100 and can be appropriately changed according to size or installation requirements. Furthermore, the container body 2 and the cup 3 may be painted or printed.

Referring to FIGS. 2 to 7 , the lid assembly 1 of this embodiment has a lid body 11 that can block the upper end opening 2 d of the container body 2 . The cover 11 is made of heat-resistant resin, such as polypropylene, and has an inner plug 12 embedded into the interior of the container body 2 from the upper end opening 2d of the container body 2, and a crown 13 protruding from the upper end of the inner plug 12. .

The cover body 11 has a bottomed and substantially cylindrical lower cover member 14 a constituting the inner plug 12 and the crown cap 13 , and a substantially circular upper cover member 14 b constituting the crown cap 13 . And the cover 11 is configured such that the lower cover member 14a is integrally installed on the lower surface of the upper cover member 14b by ultrasonic welding or high-frequency welding. The interior of the cover 11 may be provided with a thermal insulation material S, or may be provided with air as a thermal insulation layer.

The outer periphery of the inner plug 12 is provided with a male thread portion 15 that can be screwed with the female thread portion 8 of the container body 2 . Thereby, the female thread part 8 and the male thread part 15 are screwed together, and the cover 11 can be detachably mounted on the container body 2 . Therefore, the lid assembly 1 of this embodiment can block the upper end opening 2d of the container body 2 through the lid body 11 installed by screwing the female thread portion 8 with the male thread portion 15.

A waterproof gasket 16 is detachably attached to the lower end of the inner plug 12 . The waterproof gasket 16 is an annular sealing member, and may be made of an elastic member such as heat-resistant rubber such as silicone rubber or elastomer. On the other hand, the entire lower end of the inner plug 12 is provided with a flange portion 12a protruding in the diameter expansion direction, and the waterproof gasket 16 is embedded in the flange portion 12a throughout the entire circumference.

In addition, the outer peripheral surface of the waterproof gasket 16 is provided with a plurality of elastic flange portions 16 a (two in this embodiment) that protrude in the diameter expansion direction and are arranged in the up and down direction. When the lid 11 is installed on the container body 2 , the elastic flange portion 16 a will elastically deform while being in a state of being in close contact with the overhanging portion 9 of the container body 2 . Thereby, the overhanging part 9 (container body 2) and the inner plug 12 can be in a sealed state. In addition, the shape of the waterproof gasket 16 for close contact with the overhanging portion 9 is not limited to the shape of the above-mentioned elastic flange portion 16a, and its shape or number can be appropriately changed as needed.

On the other hand, the waterproof gasket 16 can be removed from the flange portion 12a by elastically deforming (stretching) itself. Thereby, the waterproof liner 16 and the inner plug 12 can be cleaned separately, and the hygiene between the waterproof liner 16 and the inner plug 12 can be maintained.

Furthermore, the waterproof liner 16 is not limited to being detachably installed on the inner plug 12. The waterproof liner 16 may be integrally formed with the inner plug 12, or may be integrally installed with the inner plug 12 through joints.

Referring to FIGS. 3 to 9 , the cover 11 is provided with a first liquid flow groove 17 and a second liquid flow groove 18 at opposite positions on the outer periphery of the inner plug 12 . The first liquid flow groove 17 and the second liquid flow groove 18 have a pair of side surfaces 17b and a pair of side surfaces 18b. The pair of side surfaces 17b and the pair of side surfaces 18b will be divided into Each clamps its corresponding bottom surfaces 17a and 18a, and the same pair of side surfaces 17b and 18b stand parallel to each other. That is, the pair of side surfaces 17b and the pair of side surfaces 18b are formed from two of the respectively clamped bottom surfaces 17a and 18a. The sides stand parallel to each other. The cover 11 is a first liquid flow groove 17 and a second liquid flow groove 18 formed with incisions in the up and down direction from opposite positions of the male thread portion 15 of the inner plug 12 , that is, the first liquid flow groove 17 and the second liquid flow groove 18 is arranged by cutting the entire outer periphery of the inner plug 12 along the up-down direction to form the male thread portion 15 . In addition, the first liquid flow groove 17 and the second liquid flow groove 18 are formed in a cutout manner on part of the lower surface of the crown cover 13. That is, the first liquid flow groove 17 and the second liquid flow groove 18 are arranged in such a way that The lower surface side of the crown cover 13 is partially cut.

The first liquid flow groove 17 and the second liquid flow groove 18 are different in size from each other. The widths W1 and W2 of the first liquid flow groove 17 and the second liquid flow groove 18 are different from each other, and the width W1 of the first liquid flow groove 17 is smaller than the width W2 of the second liquid flow groove 18 .

In addition, the width W1 of the first liquid flow groove 17 is preferably less than or equal to one-half the width W2 of the second liquid flow groove 18 . That is, the width W1 of the first liquid flow groove 17 is preferably equal to that of the second liquid flow groove 18 . The width is less than half of W2. In addition, the cross-sectional area of the first liquid flow groove 17 is preferably 10% to 70% of the cross-sectional area of the second liquid flow groove 18, and more preferably 15% to 40% of the cross-sectional area of the second liquid flow groove 18.

The crown cover 13 corresponds to the first liquid flow groove 17 and the second liquid flow groove 18 with different widths W1 and W2, and is respectively provided with a first recess 19a corresponding to the position of the first liquid flow groove 17, and a first recess 19a corresponding to the position of the second liquid flow groove. The second recess 19b at position 18.

The first recess 19 a is formed such that the position corresponding to the first liquid flow groove 17 among the upper surface and side surfaces of the crown cover 13 is recessed into a shape that is wider than the first liquid flow groove 17 . Similarly, the second recess 19 b is formed such that the position corresponding to the second liquid flow groove 18 in the upper surface and side surface of the crown cover 13 is recessed into a shape that is wider than the second liquid flow groove 18 .

The first recess 19 a and the second recess 19 b have different widths corresponding to the widths of the first liquid flow groove 17 and the second liquid flow groove 18 . Thereby, when the cover 11 is viewed from the upper surface, the difference in position and width of the first liquid flow groove 17 and the second liquid flow groove 18 can also be identified, which is very convenient.

However, the structure of the first liquid flow groove 17 and the second liquid flow groove 18 shown on the crown cover 13 is not limited to the first recessed portion 19a and the second recessed portion 19b as described above, and other appropriate changes can also be added.

In addition, a plurality of anti-slip protrusions 20 are provided on the outer peripheral portion of the crown cover 13 . The plurality of anti-slip protrusions 20 are arranged at equal intervals in the entire space between the first recessed portion 19a and the second recessed portion 19b in the circumferential direction. The anti-slip portion is not limited to the plurality of anti-slip protrusions 20 as mentioned above, and other appropriate changes can also be added.

For the lidded container 100 having the lid assembly 1 of this embodiment constructed as described above, after the cup 3 is removed, the lid body 11 is rotated to release the screwing portion of the female thread portion 8 and the male thread portion 15 . By tilting the container body 2 in the aforementioned state, the beverage or liquid in the container body 2 can be poured into the cup 3 through the first liquid flow groove 17 and the second liquid flow groove 18 without removing the lid 11 from the container body 2 .

It is worth mentioning that the cover assembly 1 of this embodiment has different sizes of the first liquid flow groove 17 and the second liquid flow groove 18, so the amount of liquid flowing out through the first liquid flow groove 17 can be equal to the amount of liquid flowing out through the second liquid flow groove 17. The amount of liquid flowing out of the liquid flow groove 18 is different.

Specifically, when the liquid in the container body 2 flows out from the first liquid flow groove 17 side with a narrow width, the amount of liquid flowing out from the first liquid flow groove 17 can be reduced. This is suitable for injecting hot water into a filter cup or the like (in this case, the width W1 of the first liquid flow groove 17 is preferably 7 mm or less). In addition, external air is introduced into the container body 2 through the second liquid flow groove 18 side with a wider width, thereby increasing the inflow amount of air. Thereby, the liquid flowing out from the first liquid flow groove 17 can be cut off neatly, and the liquid can be prevented from leaking from the second liquid flow groove 18 side.

On the other hand, when the liquid in the container body 2 flows out from the second liquid flow groove 18 with a wider width, the amount of liquid flowing out from the second liquid flow groove 18 can be increased. This is suitable for filling a cup 3 etc. with a drink, for example. In addition, external air is introduced into the container body 2 through the first liquid flow groove 17 side with a narrow width, thereby limiting the inflow amount of air. Thereby, the flow of liquid flowing out from the second liquid flow groove 18 can be made more stable, and the liquid flowing out from the second liquid flow groove 18 can be prevented from fluctuations.

In addition, the cover assembly 1 of this embodiment has a pair of side surfaces 17b and 18b that stand parallel to each other on both sides of the bottom surfaces 17a and 18a of the first liquid flow groove 17 and the second liquid flow groove 18 as described above. , the widths W1 and W2 of the first liquid flow grooves 17 and the second liquid flow grooves 18 can be kept constant, and the direction or water flow of the liquid flowing out from the first liquid flow grooves 17 and the second liquid flow grooves 18 can be more precise. Stable and resistant to liquid splashing.

In addition, the first liquid flow groove 17 and the second liquid flow groove 18 are not limited to the pair of side surfaces 17b and 18b that are curved in an arc shape with respect to the bottom surfaces 17a and 18a along the circumferential direction of the inner plug 12 as shown in FIG. 8 The structure erected in parallel may also be formed into a fan-shaped shape in which a pair of side surfaces 17b, 18b are spread out in directions away from each other. At this time, it is preferable that the pair of side surfaces 17b and 18b extend upward within an angle range of 90° to 100° in the tangential direction of the bottom surfaces 17a and 18a.

Especially when the pair of side surfaces 17b and 18b are raised upward at 90° (vertical), the flow of the liquid can be made more stable and splashing of the liquid can be prevented. In addition, compared with the first liquid flow groove 17 having a narrow width, the effect of the above structure is better reflected in the second liquid flow groove 18 having a wider width.

In addition, the cover assembly 1 of this embodiment may also form the first liquid flow groove 17 and the second liquid flow groove 18 by cutting a portion of the lower surface side of the crown cover 13 . This makes it easier to visually identify the positions of the first liquid flow groove 17 and the second liquid flow groove 18 .

Furthermore, when the container body 2 is tilted greatly with the first liquid flow groove 17 or the second liquid flow groove 18 serving as the liquid flow port facing downward, the second liquid flow groove 18 or the first liquid flow channel 18 serving as the gas flow port becomes Liquid leakage may occur at the upper end side of the liquid flow tank 17 . At this time, the upper ends of the first liquid flow groove 17 and the second liquid flow groove 18 formed by the partial cutout on the lower surface side of the crown cover 13 can play an anti-clogging role, thereby preventing the second liquid from becoming a gas flow port. The liquid leaked from the upper end side of the flow groove 18 or the first liquid flow groove 17 flows around the cover 11 and toward the first liquid flow groove 17 or the second liquid flow groove 18 side which serves as the liquid flow port.

Through the above, the lid assembly 1 of this embodiment can more easily adjust the amount of beverage flowing out through the first liquid flow groove 17 and the second liquid flow groove 18 . Therefore, the lidded container 100 of this embodiment can improve the ease of use by having such a lid assembly 1 .

However, the present invention is not limited to the above-described embodiments, and various changes can be made without departing from the spirit of the present invention.

For example, the cover assembly 1 of this embodiment makes the widths W1 and W2 of the first liquid flow groove 17 and the second liquid flow groove 18 different from each other, but by making the first liquid flow groove 17 and the second liquid flow groove 18 If the depth or cross-sectional area of the flow path is different, the amount of liquid flowing out through the first liquid flow groove 17 and the amount of juice flowing out through the second liquid flow groove 18 can also be different.

In addition, the cover assembly 1 of the present invention is not limited to the structure of the cover assembly 1 described above. For example, in another embodiment of the present invention, the following cap assembly 1 is also applicable to the present invention. The cap assembly 1 includes a cap body and a cap body 11. The cap body can be installed on the head and neck of the container body 2 with an opening at the upper end. 2c, and is provided with a liquid flow port communicating with the inside of the container body 2; and the cover body 11 is provided with an inner plug 12 that can block the liquid flow port in a state of being embedded into the inside of the cover body; and the cover assembly 1 has a structure that can The lid body that is installed by screwing together the female thread portion 8 provided on the inner circumference of the container body 2 or the cap body and the male thread portion 15 provided on the outer circumference of the inner plug can block the liquid flow port. That is to say, in another embodiment of the present invention, the cap assembly 1 can also be provided with first liquid flow grooves 17 and second liquid flow grooves 18 of different sizes at positions opposite to each other on the outer periphery of the inner plug 12 .

Although the above embodiment illustrates the application of the present invention to the above-mentioned container body 2 with a vacuum insulation structure and having a heat preservation and cold preservation function, the present invention is not limited to application to the above-mentioned container body 2 with a vacuum insulation structure. Container body 2. That is, the present invention can be widely applied to the lidded container 100 in which the lid assembly 1 is detachably attached to the head and neck portion 2c of the container body 2 .

According to the above, the above are only preferred embodiments of the present invention. However, the scope of rights claimed by the present invention is not limited thereto. According to those who are familiar with the art, based on the technical content disclosed in the present invention, they can Equivalent changes that can be easily imagined should not depart from the scope of protection of the present invention.

[customary knowledge] without [Invention] 1: Cover assembly 2: Container body 2a: Bottom surface 2b: Ontology part 2c: Head and neck 2d: Upper end opening 3: cup 3a: Bottom wall 3b: Peripheral wall 4: Outer container 5:Inner container 6: Vacuum insulation layer 7: Male thread part 8:Female thread part 9: Overhang part 10:Female thread part 11: Cover 12: Neisser 12a: Flange part 13: Crown cover 14a: Lower side cover member 14b: Upper side cover component 15: Male thread part 16:Waterproof liner 16a: Elastic flange part 17: First liquid flow tank 17a: Bottom surface 17b:Side 18: Second liquid flow tank 18a: Bottom surface 18b: Side 19a: first recess 19b: Second recess 20: Anti-slip protrusion 100: Container with lid S: Insulation material W1, W2: Width

[Fig. 1] is a schematic three-dimensional view of the container with lid of the present invention; [Fig. 2] is a schematic cross-sectional view of the lidded container of the present invention; [Fig. 3] is a schematic cross-sectional view of the clogged state of the lidded container of the present invention; [Fig. 4] is a schematic cross-sectional view of the open state of the lidded container of the present invention; [Fig. 5] is an exploded perspective view of one of the side surfaces of the lidded container of the present invention viewed from above; [Fig. 6] is an exploded perspective view of the other side of the lidded container of the present invention viewed from above; [Fig. 7] is an exploded perspective view of the other side of the lidded container of the present invention viewed from the lower side; [Fig. 8] is a schematic cross-sectional view of the cover assembly of the present invention cut along the horizontal direction, viewed from the lower side; and [Fig. 9] is a schematic top view of the cover assembly of the present invention.

1: Cover assembly

2: Container body

2b: Ontology part

2c: Head and neck

2d: Upper end opening

3: cup

3a: Bottom wall

3b: Peripheral wall

7: Male thread part

8:Female thread part

9: Overhang part

10:Female thread part

11: Cover

12: Neisser

12a: Flange part

13: Crown cover

14a: Lower side cover member

14b: Upper side cover component

15: Male thread part

16:Waterproof liner

16a: Elastic flange part

17: First liquid flow tank

18: Second liquid flow tank

19a: first recess

19b: Second recess

100: Container with lid

S: Insulation material

Claims (10)

A cover assembly, including: a cover body, which is provided with an inner plug, which can be embedded into the inside of the container body from an upper opening of a container body with an opening at the upper end; and a waterproof liner, which is integrally connected with the container body. The enclosure is installed on the outer periphery of the inner plug to seal between the inside of the container body and the inner plug; wherein, a female thread portion provided on the inner periphery of the container body can be connected with the outer periphery of the inner plug. A male thread part is screwed together so that the cover body can block the upper end opening, and the cover body has a first liquid flow groove and a second liquid flow groove formed with incisions in the up and down direction from opposite positions on the outer periphery of the inner plug. , the sizes of the first liquid flow groove and the second liquid flow groove are different. The cover assembly of claim 1, wherein the first liquid flow groove and the second liquid flow groove have different widths. The cover assembly of claim 2, wherein the cross-sectional area of the first liquid flow groove is 10% to 70% of the cross-sectional area of the second liquid flow groove. The cover assembly according to claim 2 or 3, wherein the width of the first liquid flow groove is less than half of the width of the second liquid flow groove. The cover assembly of claim 4, wherein the first liquid flow groove and the second liquid flow groove are respectively provided with a pair of side surfaces, and each pair of side surfaces clamps its corresponding bottom surface, and the same pair of side surfaces The sides stand parallel to each other. The cover assembly according to claim 4, wherein the first liquid flow groove and the second liquid flow groove respectively have a pair of side surfaces, and each pair of side surfaces is configured to clamp tangent lines on both sides of its corresponding bottom surface. direction, extending and erecting in directions away from each other in an angle range of 90 degrees to 100 degrees. The cover assembly according to claim 1, wherein the cover body has a crown protruding from the upper end side of the inner plug toward the outer circumference, and the crown is provided with a first recess corresponding to the first liquid flow groove, and a second recess corresponding to the second liquid flow groove. The cover assembly according to claim 7, wherein the first liquid flow groove and the second liquid flow groove are formed in a cutout manner on part of the lower surface side of the crown cover. A lidded container has a lid assembly as described in any one of claims 1 to 8, and a container body mounted with the lid assembly. The container with a lid according to claim 9, wherein the container body has a vacuum insulation structure.

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