TWI815586B - Lid components and beverage containers - Google Patents

Abstract

The invention relates to a lid assembly and a beverage container. The beverage container has the lid assembly and a container body. The lid assembly is used to be installed on a container body with an opening in the upper section. It includes a lid body, a lid body, a hinge and a waterproof liner. The lid body has a top wall part and a peripheral wall part, which are used to block the upper opening of the container body; the lid body is arranged on the upper side of the lid body; the hinge connects the lid body to the lid body in a freely rotatable manner; and the waterproof liner It can seal between the container body and the lid body; wherein, the lid body is provided with a liquid flow port and a gas flow hole, and the liquid flow hole and the gas flow hole penetrate the top wall in the up and down direction to connect the outside and the inside of the container body. The flow port and the gas flow hole are covered by the cover, and when viewed from the lower side, the gas flow hole can be covered by the waterproof liner.

Description

Lid components and beverage containers

The present invention relates to a lid assembly and a beverage container.

A conventional lid assembly includes a lid body, a lid body and a waterproof liner. The lid body is used to block the upper opening of the container body; the lid system is rotatably connected to the lid body through a hinge; and the waterproof liner is sealed. Between the container body and the lid body, the lid body has a liquid flow port and a gas flow hole that communicates the inside and outside of the container body (for example, Japanese Patent No. 3937428, Japanese Patent Publication No. 2010-235137).

Following the above, when the contents or beverage of the container body need to be flowed out through the liquid flow hole, external air can be sucked into the container body by providing a gas flow hole, so that the beverage can flow out smoothly to the outside of the container.

In particular, a beverage container of the conventional cap assembly that can accommodate a nozzle or a sipping port formed with a liquid flow port, when the user drinks the beverage, the inside of the container will be in a depressurized state, so a gas flow hole is needed. , when the lid is closed, the gas flow hole is plugged with an elastic member or an air flow sealing part, thereby preventing the beverage from leaking out of the gas flow hole when the container falls down.

When the beverage container is dropped in an inverted position and hits the ground, the beverage will violently move in the inverted direction. At this time, the beverage may penetrate the sealed portion of the gas circulation hole and the air flow sealing part and leak out of the gas circulation hole. In addition, when the lid is opened and the beverage container is tilted for drinking, the beverage may move violently in the inverted direction, and the beverage may leak out through the inside or inside of the gas flow hole.

In order to prevent leakage as mentioned above, it is generally believed that placing the gas circulation hole as far away from the sip port as possible or the liquid circulation port in the opposite tilt direction to that when drinking water (i.e., on the hinge side or behind the sip port) can prevent When the beverage container is moderately tilted, the inside of the vent is filled with beverage (that is, an air layer is left inside the gas flow hole), which can also prevent the beverage from leaking from the gas flow hole. However, the size of the cover limits the location of the gas circulation hole. When the beverage container is tilted at a large angle, the inside of the liquid circulation hole will eventually be filled with beverage, resulting in poor leakage prevention effect.

At the same time, it may also be considered to provide a valve member that can open and close the gas flow hole, and configure the valve member to be opened only when air is sucked through the gas flow hole. However, in this case, the structure becomes more complex, causing problems such as deterioration of cleanability and increase in cost.

In view of the above-mentioned conventional problems, after repeated research and testing, the inventor finally developed a lid assembly and a beverage container of the present invention. It is hoped that the invention can effectively solve the conventional problems and provide users with Better user experience.

One object of the present invention is to provide a cover assembly, which is used to be installed on a container body with an opening in the upper section. It includes a cover body, a cover body, a hinge and a waterproof liner. The cover body It has a top wall part and a peripheral wall part, which are used to block an upper opening of the container body; the cover system is arranged on the upper side of the cover body; the hinge is capable of rotating the cover body freely. Connected to the cover body; the waterproof liner can seal between the container body and the cover body; wherein, the cover body is provided with a liquid flow port and a gas flow hole, and the liquid flow hole and the gas flow hole are above The top wall penetrates downward to connect the outside and the inside of the container body. The liquid flow port and the gas flow hole are covered by the cover. When viewed from the lower side, the gas flow hole can be covered by the waterproof lining. Covered by pad.

Optionally, the cover body has a cylindrical portion extending downward from the top wall and surrounding the liquid flow opening when viewed from the lower side, and the cylindrical portion has a longitudinal gas flow groove, The longitudinal gas flow groove is recessed in the radial direction from the outer peripheral surface of the cylinder and extends downward from the gas flow hole. Viewed from the lower side, the waterproof liner can cover the longitudinal gas flow groove.

Optionally, the barrel has a transverse gas flow groove, which is recessed from the bottom surface of the barrel toward the upper side and extends in the radial direction, and is connected to the longitudinal gas flow groove, and the waterproof liner is It is opposite to the horizontal gas flow groove from the lower side.

Optionally, the cover body has a cylindrical portion that extends downward from the top wall and surrounds the liquid flow port when viewed from the lower side, and the waterproof liner includes a liner peripheral wall, A sealing flange and an extended flange, the liner peripheral wall is embedded in the barrel from the outside; the sealing flange expands from the liner peripheral wall toward the radially outward side to seal the upper opening of the container body and the top wall of the cover body; the extended flange extends radially inward from the bottom end of the liner peripheral wall. When viewed from the lower side, among the waterproof liner, at least the extended flange is in contact with The gas flow holes overlap.

Optionally, the waterproof liner can be elastically deformed to communicatively seal between the gas flow hole and the interior of the container body.

Optionally, the center of the liquid flow opening is further forward than the central axis of the container body, and the gas flow hole is located between the liquid flow opening and the hinge in the front-rear direction.

Optionally, the cover body further includes a nozzle part, which is elastically deformable, is made of different materials from the top wall part, and has the liquid flow port inside the nozzle part. .

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

Optionally, the container body has a vacuum insulated construction.

In summary, through the lid assembly and beverage container of the present invention, with a simple structure, even if the beverage moves violently in the inverted direction, leakage of the beverage from the gas flow hole can be suppressed.

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:

In order to make the purpose, technical content and advantages of the present invention more clear, the disclosed embodiments of the present invention will be further described in detail below in conjunction with specific implementation modes and with reference to the accompanying drawings.

Referring to FIGS. 1 to 5 , the lid assembly 1A and the beverage container 100 according to the first embodiment of the present invention will be described below. However, in the following description, the cap assembly 1A may be simply referred to as a cap or the beverage container 100 may be referred to as a container.

Please refer to Figures 1 and 2. In the first embodiment of the present invention, a beverage container 100 has a cover assembly 1A and a container body 2, wherein the container body 2 is detachably installed on the cover assembly 1A. And it is in the shape of a bottomed tube. The cover assembly 1A has a cover body 10, a cover body 20, a first hinge 30, a waterproof gasket 40 and a cover locking mechanism 50, wherein the cover body 10 has a cylindrical shape with a top wall, that is, it is formed into a top cylindrical shape; The cover body 20 is formed into a top cylinder shape; the first hinge 30 (ie, the hinge described in claim 1) connects or pivots the cover body 20 to the cover body 10 in a freely rotatable manner; the waterproof gasket 40 The system can seal between the container body 2 and the lid body 10 .

Based on the above, the lid assembly 1A and the container body 2 are coaxially arranged with the central axis C as the center. In this embodiment, the direction in which the central axis C extends is called the up-down direction. In the up-down direction, the direction from the bottom surface 2a of the container body 2 toward the lid top wall 20a of the lid 20 is called the upper side, and the direction from the lid top wall 20a toward the bottom surface 2a is called the lower side; and the central axis The direction orthogonal to C is called the radial direction. In the radial direction, the direction toward the central axis C is called the radial inside or simply called the inside, and the direction away from the central axis C is called the radial outside or simply called the outside; The direction of rotation around the central axis C is called the circumferential direction.

In addition, in the radial direction, the direction passing through the first hinge 30 and the central axis C is called the front-rear direction. In the front-rear direction, the direction from the first hinge 30 toward the central axis C is called the front side, and the direction from the central axis C toward the first hinge is called the front side. The direction of 30 is called the rear side, and the direction orthogonal to the front-to-back direction in the radial direction is called the left-right direction. As shown in FIG. 2 , the beverage container 100 is placed in an upright position with the cover top wall 20 a of the cover 20 facing upward in the vertical direction. When the container 100 with a cover is viewed from the front side, the left-right direction of the container 100 is facing left. It is called the left side and the direction towards the right is called the right side. Although not particularly shown in the drawings, the posture (state) of the beverage container 100 in which the lid top wall portion 20a of the lid body 20 faces downward in the vertical direction is called an inverted posture.

In order to distinguish it from the nozzle central axis or the hinge central axis A described later, the central axis C can also be renamed as the cap central axis or the container central axis C.

The beverage container 100 can keep the beverage or liquid contained in the container body 2 warm or cold by using the container body 2 with a vacuum insulation structure. The container body 2 is formed in a bottomed cylindrical shape with an opening in the upper section. However, the container body 2 can also accommodate contents other than beverages.

Specifically, the container body 2 has a bottomed cylindrical outer container 4 and an inner container 5 made of, for example, stainless steel, and the lip portions of the inner container 5 are coupled to each other while the inner container 5 is housed inside the outer container 4 . It is composed of a container with a double-layer structure.

Furthermore, the upper cylindrical part of the inner container 5 is fitted into the upper end cylindrical part of the outer container 4, and in this fitting state, the upper cylindrical parts are welded to each other. Thereby, the upper opening 2d of the container body 2 is formed into a sharp shape called "curl welding".

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, in a chamber whose pressure is reduced to a high vacuum (vacuum suction) by blocking an exhaust hole provided in the center of the bottom surface of the outer container 4 .

Please refer to Figures 1 and 2. The container body 2 includes a bottom portion 2a, a body portion 2b, a head and neck portion 2c and a shoulder portion 2e. The bottom portion 2a is substantially circular; the body portion 2b is formed from the lower end of the container body 2. The outer circumference of the bottom portion 2a is raised and has a substantially cylindrical shape; the head and neck portion 2c is provided on the upper side of the main body portion 2b and has a substantially cylindrical shape with a diameter smaller than that of the main body portion 2b; and the shoulder portion 2e shrinks further toward the upper side. It has a substantially tapered diameter and connects the upper end of the main body 2b and the lower end of the head and neck 2c.

Referring to FIG. 3 , the inner peripheral portion of the head and neck portion 2 c is smaller in diameter than the inner peripheral surface of the main body portion 2 b. In addition, the outer peripheral part of the head and neck 2c is provided with a male thread part 7, and the upper end opening of the head and neck 2c is circular to serve as the upper opening 2d of the container body 2.

The beverage container 100 of this embodiment has an overall substantially cylindrical appearance as shown in FIG. 1 . However, the appearance of the beverage container 100 is not limited to this, and may be appropriately modified to suit the size or design. In addition, coating or printing may be applied to each outer surface (surface) of the container body 2, the lid body 10, and the lid body 20.

Referring to FIG. 3 , the cap assembly 1A is composed of a plug installed on the head and neck 2 c of the container body 2 to block the upper opening 2 d of the container body 2 .

The lid body 10 is a member for closing the upper opening 2d of the container body 2, and is made of a heat-resistant resin such as polypropylene (PP). The cover body 10 has a top wall part 10a, a peripheral wall part 10b, and a cylinder part 14. The top wall portion 10a covers the upper side of the upper opening portion 2d of the container body 2. The top wall portion 10a has a substantially annular plate shape. The top wall portion 10a has a nozzle portion 11 protruding upward from the top wall portion 10a. The nozzle portion 11 has a cylindrical shape extending in the up-down direction, and the central axis of the nozzle (not shown) is located in front of the central axis C of the container.

The nozzle portion 11 has a liquid flow port 12 inside. That is, the cap body 10 has the liquid flow port 12 . The liquid flow port 12 penetrates the top wall portion 10a in the up-down direction to connect the outside and the inside of the container body 2. That is, the liquid flow port 12 extends in the up-and-down direction inside the nozzle 11 , and the upper end and the lower end of the nozzle 11 have openings respectively. The center (opening center) of the liquid flow port 12 corresponds to the nozzle central axis of the nozzle portion 11 . The center of the liquid flow port 12 is located further forward than the central axis C of the container body 2 (that is, the center of the liquid flow port 12 is further forward than the central axis C of the container body 2). In the beverage container 100 of this embodiment, when the user holds the mouthpiece 11 and drinks the beverage, the pressure inside the container body 2 will be reduced.

In addition, the top wall portion 10a has a gas flow hole 13, and the gas flow hole 13 penetrates the top wall portion 10a in the up and down direction to communicate with the inside and outside of the container body 2. That is, the cover body 10 has the gas circulation hole 13 . The gas circulation hole 13 is provided between the nozzle 11 (liquid circulation port 12) and the first hinge 30 in the front-rear direction (that is, the gas circulation hole 13 is located between the liquid circulation port 12 and the first hinge 30 in the front-rear direction. Location). In this embodiment, the gas flow hole 13 is in the shape of a circular hole and is located further back than the central axis C of the container.

In the closed state of the cover 20 shown in FIG. 3 , the liquid flow port 12 and the gas flow hole 13 are covered by the cover 20 . In addition, in the open state of the cover 20 shown in FIG. 4 , the liquid flow hole 12 and the gas flow hole 13 are opened upward.

Referring to FIG. 3 , the peripheral wall portion 10 b is formed in a cylindrical shape extending downward from the outer peripheral portion of the top wall portion 10 a. The peripheral wall portion 10b completely surrounds the head and neck portion 2c in the circumferential direction from the radially outer side. The lower end of the peripheral wall portion 10b faces the shoulder portion 2e from the upper side with a gap therebetween, or is in contact with the shoulder portion 2e. The peripheral wall portion 10b is formed in a substantially cylindrical shape extending in the up-down direction so as to be continuous with the main body portion 2b of the container body 2.

The peripheral wall portion 10b has a female thread portion 15 on the inner peripheral surface of the peripheral wall portion 10b. The female thread portion 15 is threaded with the male thread portion 7 of the head and neck portion 2c. That is, the lid body 10 is detachably attached to the outside of the head and neck 2c by screwing in a state of covering the upper opening 2d of the container body 2.

The cylindrical portion 14 has a cylindrical shape centered on the central axis C and extends downward from the top wall portion 10a. The cylindrical portion 14 is formed in an annular shape surrounding the liquid flow port 12 when viewed from the lower side. Specifically, when viewed from the lower side, the cylindrical portion 14 completely surrounds the liquid flow port 12 in the circumferential direction from the outside in the radial direction. The tube part 14 is inserted into the head and neck part 2c.

Please refer to Figures 3 and 5. The cylinder portion 14 has a longitudinal gas circulation groove 16 and a transverse gas circulation groove 17. Figure 5 shows the relative relationship between the portion of the cylinder portion 14, the gas circulation hole 13 and the longitudinal gas circulation groove 16. positional relationship, and the illustration of the waterproof liner 40 is omitted. The longitudinal gas flow groove 16 is provided at the rear end of the cylinder portion 14 . The longitudinal gas flow groove 16 is recessed in the radial direction from the peripheral surface of the cylinder portion 14 and extends downward from the gas flow hole 13 . In this embodiment, the longitudinal gas flow groove 16 is recessed radially inward from the outer peripheral surface of the barrel portion 14 and extends in the up and down direction. In the example shown in the figure, the longitudinal gas flow groove 16 is formed as a circular groove with a concave arc-shaped cross section. The upper end of the longitudinal gas flow groove 16 is connected to the lower end of the gas flow hole 13 .

The transverse gas flow groove 17 is provided at the rear end of the cylinder portion 14 . The lateral gas flow groove 17 is recessed upward from the lower end surface of the cylindrical portion 14 and extends in the radial direction. The radially outer end of the transverse gas flow groove 17 is connected to the lower end of the longitudinal gas flow groove 16 . That is, the transverse gas flow grooves 17 are connected to the gas flow holes 13 through the longitudinal gas flow grooves 16 . In the example shown in the figure, the lateral gas flow groove 17 is formed as a circular groove with a concave arc-shaped cross section.

In this embodiment, the radial dimension, that is, the wall thickness of the portion of the cylindrical portion 14 where the longitudinal gas flow grooves 16 and the transverse gas flow grooves 17 are provided in the circumferential direction is larger than the wall thickness of other portions. The above-mentioned portion (thick-walled portion) of the cylindrical portion 14 protrudes radially inward from the inner peripheral surface of the portion other than the above-mentioned portion.

Please refer to FIG. 3 . The cover body 20 is disposed on the upper side of the cover body 10 . It is a member used to cover the upper section of the cover body 10 and open and close the liquid flow port 12 and the gas flow hole 13 . The cover body 20 is made of The cover body 20 has a cover top wall portion 20a and a cover peripheral wall portion 20b made of heat-resistant resin (for example, polypropylene (PP)) and the like (for example, portions other than the liquid-barrier sealing portion 21 and the gas-barrier sealing portion 22 described later). , liquid-proof sealing part 21 and gas-proof sealing part 22.

The cover top wall portion 20a is provided on the upper side of the top wall portion 10a of the cover body 10. In this embodiment, the cover top wall portion 20a is formed to be inclined toward the front side and toward the upper side from the first hinge 30. and extends along the front-to-back direction.

The cover top wall part 20a has a hole part 20c and a support tube 20d. The hole part 20c penetrates the cover top wall part 20a in the up and down direction. The support tube 20d protrudes from the lower side of the cover top wall part 20a. The support tube 20d is provided in the front and rear direction. between the hole 20c and the first hinge 30.

The cover peripheral wall portion 20b extends downward in a cylindrical shape from the outer peripheral portion of the cover top wall portion 20a, and is provided to surround the top wall portion 10a of the cover body 10.

The liquid-blocking sealing portion 21 is made of, for example, heat-resistant rubber such as silicone rubber or an elastic member such as elastomer. That is, the liquid-blocking sealing portion 21 is elastically deformable and is detachably mounted on the cover 20 . Cover the top wall portion 20a. When the liquid-blocking sealing portion 21 is in the closed state, it comes into watertight contact with the opening on the upper side of the nozzle portion 11 . Thereby, the liquid-blocking sealing portion 21 blocks the upper side of the liquid flow port 12 in an openable state. The liquid-blocking sealing portion 21 is a plug-shaped sealing member for blocking the liquid flow port 12 of the nozzle portion 11 .

The liquid-blocking sealing part 21 has a shaft part 21a fitted into the hole part 20c, and a plug part 21b connected to the lower end part of the shaft part 21a and protruding downward in a substantially dome shape. The liquid-blocking sealing part 21 is detachable from the hole part 20c. Therefore, the cover body 20 and the liquid-blocking sealing portion 21 can be cleaned separately, and the hygiene between the cover body 20 and the liquid-blocking sealing portion 21 can be maintained.

When the cover 20 is in the blocking position shown in FIG. 3 , the cover assembly 1A will connect the upper opening periphery of the nozzle 11 (that is, around the opening of the liquid flow port 12 ) and the plug portion 21 b of the liquid-blocking sealing portion 21 The plug portion 21b is in close contact with the surroundings of the opening of the liquid flow port 12 while being elastically deformed. Thereby, the liquid flow port 12 of the nozzle part 11 can be blocked by the liquid blocking sealing part 21.

The gas barrier sealing portion 22 is formed of an elastic member such as heat-resistant rubber such as silicone rubber or elastomer. That is, the gas barrier sealing portion 22 can be elastically deformed. The gas barrier sealing part 22 is detachably attached to the lid top wall part 20a of the lid body 20. The gas barrier sealing portion 22 is in watertight contact with the upper opening of the gas flow hole 13 when the cover 20 is in a closed state. Thereby, the gas barrier sealing part 22 blocks the gas flow hole 13 from the upper side in such a manner that it can be opened. The gas barrier sealing portion 22 is a bottomed cylindrical sealing member for closing the gas flow hole 13 .

The gas barrier sealing part 22 is embedded in the support tube 20d from the outside. The gas barrier sealing part 22 is detachable from the support tube 20d. Therefore, the cover body 20 and the gas barrier sealing part 22 can be cleaned respectively, and the hygiene between the cover body 20 and the gas barrier sealing part 22 can be maintained.

When the cover body 20 of the cover assembly 1A is in the blocking position, the bottom of the gas barrier sealing portion 22 is in contact with the opening of the gas circulation hole 13 , and as the bottom elastically deforms, it becomes closely connected to the opening of the gas circulation hole 13 state around the body. Thereby, the gas flow hole 13 can be blocked by the gas barrier sealing part 22 .

In this embodiment, the liquid-blocking sealing portion 21 and the gas-blocking sealing portion 22 can be integrally formed by a single component. Therefore, the number of parts can be reduced and the chance of components being lost during cleaning can be reduced.

The first hinge 30 connects the upper rear end of the cover body 10 and the rear end of the cover 20 around the hinge central axis A in a relatively rotatable manner. The hinge central axis A of the first hinge 30 extends in the left and right direction. The cover 20 is connected to the cover body 10 through the first hinge 30, whereby the liquid flow port 12 and the gas flow hole 13 can be blocked (blocking position) as shown in FIG. 3, and the liquid flow can be opened as shown in FIG. 4. The position of the port 12 and the gas flow hole 13 (open position) can be freely rotated.

Although not particularly shown in the figure, the first hinge 30 has a torsion coil spring extending in a spiral shape around the hinge central axis A. The torsion coil spring can impart potential energy to the cover body 20 in the opening direction relative to the cover body 10 . That is to say, the cover 20 is given a potential energy toward the opening direction about the central axis A of the hinge. Therefore, when the locked state caused by the cover locking member 50 is released, the cover 20 will rotate from the blocking position toward the open position.

Referring to FIG. 3 , the waterproof gasket 40 is detachably installed on the inside of the cover body 10 . The waterproof gasket 40 is an annular sealing member for sealing (waterproofing) the container body 2 and the lid body 10 . The waterproof gasket 20 is made of heat-resistant rubber such as silicone rubber or an elastic member such as elastomer. That is, the waterproof gasket 40 can be elastically deformed. Specifically, the waterproof gasket 40 of this embodiment can seal between the upper opening 2d of the container body 2 and the top wall 10a of the lid body 10 in a watertight manner. In FIG. 3 , a two-dot dotted line (imaginary line) is used to represent the shape of a part of the waterproof gasket 40 before elastic deformation.

The waterproof gasket 40 is attached to the cover body 10 in a state of being fitted to the outside of the tube portion 14 . In addition, the waterproof gasket 40 is detachable from the barrel portion 14 . Thereby, the cover body 10 and the waterproof liner 40 can be cleaned separately, and the hygiene between the cover body 10 and the waterproof liner 40 can be maintained.

The waterproof gasket 40 includes a gasket peripheral wall 41, a sealing flange 42 and an extension flange 43. The gasket peripheral wall 41 is cylindrical and is embedded in the cylinder 14 from the outside; the sealing flange 42 is annular. It can seal between the upper opening 2d of the container body 2 and the lid top wall 20a of the lid body 10; the extension flange 43 extends radially inward from the bottom end of the gasket peripheral wall 41.

The gasket peripheral wall 41 extends in the up-down direction with the central axis C as the center, and is fitted to the outside of the tube portion 14 . The inner peripheral surface of the pad peripheral wall 41 is in contact with the outer peripheral surface of the cylindrical portion 14 . In addition, a flow passage (that is, a longitudinal gas flow passage) through which air can circulate is provided between the inner circumferential surface of the gasket peripheral wall 41 and the longitudinal gas flow groove 16 of the cylindrical portion 14 . The longitudinal gas flow channel extends in the up and down direction and is connected with the gas flow hole 13 . The lower end of the gasket peripheral wall 41 protrudes below the lower end of the cylindrical portion 14 . That is, the bottom end of the gasket peripheral wall 41 protrudes further downward than the bottom end of the cylindrical portion 14 .

The sealing flange 42 has a substantially annular plate shape centered on the central axis C. The sealing flange 42 protrudes outward from the upper end of the gasket peripheral wall 41 and extends in the circumferential direction. As shown by the two-dot dotted line in FIG. 3 , in this embodiment, the sealing flange 42 has a groove 42 a that is recessed radially inward from the outer peripheral surface of the sealing flange 42 and extends in the circumferential direction, and is provided in the groove 42 a A pair of flange portions 42b on the upper side and the lower side. Therefore, the cross-sectional shape (longitudinal cross-sectional shape) of the sealing flange 42 parallel to the central axis C has a substantially C-shape or a substantially U-shape that opens radially outward.

Among the pair of flange portions 42b, the upper surface of the upper flange portion 42b is in contact with the lower surface of the top wall portion 10a. That is, the upper surface of the sealing flange 42 is in contact with the lower surface of the top wall portion 10a. . The wall thickness (plate thickness) of one of the pair of flange portions 42b is thinner than the wall thickness of the pad peripheral wall 41. The pair of flange portions 42b are particularly easily elastically deformed in the waterproof gasket 40, and are easily in close contact with the upper opening 2d and the top wall portion 10a, thereby stably sealing the space between them.

The extended flange 43 is an annular plate-shaped object centered on the central axis C. The extension flange 43 protrudes radially inward from the bottom end of the pad peripheral wall 41 and extends in the circumferential direction. The extended flange 43 is provided just below the peripheral wall of the barrel portion 14 . A gap is provided in the up and down direction between the upper surface of the extension flange 43 and the lower end surface of the tube portion 14 . Therefore, when the waterproof gasket 40 is installed, the extending flange 43 can be prevented from being pushed against the lower end surface of the tube portion 14 due to manufacturing errors of components, and the sealing flange 42 and the top wall portion 10a can be prevented from being in a tight contact state. Stabilize such an unideal situation.

In addition, the cylindrical portion 14 is provided with parts other than the longitudinal gas flow groove 16 and the transverse gas flow groove 17 in the circumferential direction (thick wall portion at the rear end of the cylindrical portion 14), and the inner peripheral portion of the extended flange 43 only extends in the radial direction. The inside protrudes or is flush with other parts. Therefore, when the user drinks a drink, the drink in the container body 2 that is tilted forward is more likely to pass over the inner circumference of the extended flange 43 toward the liquid flow opening 12 , and the drink can flow out smoothly from the liquid flow opening 12 , so it is easier to Drinking beverages.

In addition, a flow channel (transverse gas flow channel) through which air can circulate is provided between the upper surface of the extension flange 43 and the lateral gas flow groove 17 of the cylindrical portion 14 . The transverse gas flow channels extend in the radial direction. The radially outer end of the transverse gas flow channel is connected to the longitudinal gas flow channel. That is, the transverse gas flow channel communicates with the gas flow hole 13 through the longitudinal gas flow channel. The radially inner end of the transverse gas flow channel opens toward the inside of the cylinder portion 14 and communicates with the inside of the container body 2 . Thereby, the outside (outside of the container and the outside of the lid) is connected with the inside of the container body 2 . Therefore, when the user holds the spout 11 to drink a beverage, air can be released from the gas flow hole 13 when depressurization occurs in the container body 2 . Inhale into the container body 2.

When viewed from the lower side, the waterproof gasket 40 covers the gas flow hole 13 . In other words, when viewed from the lower side, the gas flow hole 13 is covered by the waterproof gasket 40 . Moreover, when viewed from the lower side, the waterproof gasket 40 covers the vertical gas flow groove 16 (vertical gas flow path) and at least a part of the lateral gas flow groove 17 (lateral gas flow path). In addition, the extended flange 43 faces the lateral gas flow groove 17 via a gap from the lower side. That is, the waterproof gasket 40 faces the lateral gas flow groove 17 from the lower side.

Specifically, when viewed from the lower side, in the waterproof gasket 40 , at least the extended flange 43 overlaps the gas flow hole 13 . In this embodiment, when viewed from the lower side, the gasket peripheral wall 41 and the extended flange 43 of the waterproof gasket 40 overlap with the gas flow hole 13 . Viewed from the lower side, the gas flow hole 13 is covered by the gasket peripheral wall 41 and the extended flange 43 .

In addition, the extended flange 43 overlaps the longitudinal gas flow groove 16 when viewed from the lower side. Viewed from the lower side, the longitudinal gas flow groove 16 is covered by the extended flange 43 . In addition, the extension flange 43 overlaps the lateral gas flow groove 17 when viewed from the lower side. Viewed from the lower side, the lateral gas flow groove 17 is at least partially covered by the extended flange 43 .

Please refer to Figures 1, 3 and 4. The cover locking mechanism 50 resists the rotational potential energy in the opening direction around the first hinge 30 (hinge central axis A), and is in the above-mentioned blocking position (closed state) relative to the cover body 10. ) fix the cover 20. The cover locking mechanism 50 is provided at the front end of the cover assembly 1A. 1 and 3 show the state in which the cover 20 is fixed at the blocked position by the cover locking mechanism 50 (that is, the locked state), and FIG. 4 shows the state in which the fixing of the cover 20 by the cover locking mechanism 50 is released (that is, the locked state). released state).

The cover locking mechanism 50 includes a second hinge 55 , a locking member 52 and a ring stopper 54 . The hinge central axis (not shown) of the second hinge 55 extends in the left and right directions; the locking member 52 can surround the second hinge 55 . The hinge central axis swings; the ring stopper 54 can freely rotate around the hinge central axis of the second hinge 55 . Furthermore, the second hinge 55 has an inner hinge part 51 and outer hinge parts 53 located on both outer sides of the inner hinge part 51 in the left-right direction. The inner hinge part 51 and the outer hinge part 53 are coaxially arranged with the hinge central axis of the second hinge 55 as a coaxial axis.

The locking member 52 is swingably installed on the cover body 10 through the inner hinge portion 51 . The ring stopper 54 is rotatably installed on the cover body 10 through the outer hinge portion 53 .

The inner hinge part 51 is disposed on the front surface of the peripheral wall part 10b of the cover body 10. As shown by the dotted line in FIG. . The locking member 52 is supported by the inner hinge part 51 so as to be able to swing in the front-rear direction. The locking member 52 has an upper arm part 52a extending upward from the hinge central axis of the second hinge 55 and an upper arm part 52a extending upward from the second hinge 55 . The lower arm portion 52b extends downward from the hinge center axis. A hook portion 56 is provided at the front end portion of the upper arm portion 52a (the upper end portion of the locking member 52), and the hook portion 56 protrudes toward the rear side. A compression coil spring 57 in a compressed state in the front-rear direction is provided between the lower arm portion 52b and the peripheral wall portion 10b.

The outer hinge part 53 is provided on the front surface of the peripheral wall part 10b of the cover body 10. The ring stopper 54 is formed of a member bent into a substantially C-shape, and its both ends are supported by the outer hinge portion 53 so as to be rotatable in the up and down direction.

In addition, the cover locking mechanism 50 has a locked portion 58 that can be locked by the hook portion 56 of the locking member 52 , and a locked portion 59 that can be latched by the ring stopper 54 . The locked portion 58 is a claw portion protruding forward from the lower end portion on the front side of the cover 20 , and the stopped portion 59 is substantially semicircular in shape matching the shape of the inner peripheral portion of the ring stopper 54 . A portion of the front surface of the cover 20 surrounding the locked portion 58 protrudes forward.

When the cover body 20 is in the blocked position, the cover locking mechanism 50 can resist the rotational potential energy toward the opening direction of the first hinge 30 by the hook portion 56 of the locking member 52 being locked on the locked portion 58, so that the cover body 20 can be relatively opposite to the first hinge 30. The cover body 10 is in a fixed state.

From this state, the user can release the locking state of the locked portion 58 by the hook portion 56 by pressing the lower arm portion 52 b of the locking member 52 rearward while compressing the compression coil spring 57 . Thereby, the cover 20 that has been given potential energy in the opening direction is rotated toward the open position.

In addition, when the cover body 20 is in the blocked position, the cover locking mechanism 50 can prevent the cover body 20 from rotating in the opening direction by latching the ring stopper 54 to the stopped portion 59 . Thereby, the cover locking mechanism 50 can prevent the cover 20 from being opened due to inadvertent (accidental) operation of the locking member 52 .

According to the lid assembly 1A and the beverage container 100 of this embodiment described above, when viewed from the lower side, the gas flow hole 13 of the lid body 10 is covered by the waterproof gasket 40 . Therefore, even if the beverage container 100 is tilted violently when drinking a beverage, or the beverage container 100 falls in an inverted posture and hits the ground, the beverage in the container body 2 can be suppressed from violently intruding into the gas circulation hole 13 , that is, even if the container The beverage in the body 2 moves violently toward the direction of the lid assembly 1A (that is, the inverted direction). The waterproof gasket 40 can intercept the impact of the beverage before reaching the gas flow hole 13 and reduce the intensity of the movement of the beverage. Therefore, when the lid 20 is in an open state, the leakage of the beverage through the gas circulation hole 13 can be suppressed, and even when the lid 20 is in a closed state, the beverage can be suppressed from being sealed by the gas circulation hole 13 and the gas barrier sealing portion 22 Partial leakage.

In addition, in this embodiment, using the waterproof liner 40 of the sealed container body 2 on the lid body 10 can prevent the beverage from leaking from the gas circulation hole 13. That is, by giving the waterproof liner 40 multiple functions, the increase in the number of parts can be suppressed. . Specifically, in order to prevent leakage as described above, for example, it is necessary to newly install a valve member that can switchably close the gas flow hole, and this valve member needs to be used only when outside air is to be sucked from the gas flow hole. It is a very complicated structure to open a valve. However, in this embodiment, the leakage of the beverage from the gas flow hole 13 is suppressed and the structure can be simplified without adding new components. Therefore, the cleanliness of the container can be maintained well and the cost can be suppressed.

According to this embodiment, even if the beverage in the container body 2 moves violently toward the lid assembly 1A, the simplified structure can stably prevent the beverage from leaking from the gas circulation hole 13 .

Furthermore, in this embodiment, the waterproof gasket 40 covers the gas flow hole 13 and the longitudinal gas flow groove 16 (vertical gas flow channel) from the lower side. Therefore, when the beverage container 100 is tilted violently when drinking a beverage, or when the container is subjected to a strong impact in the inverted direction, the intensity of movement of the beverage in the container body 2 will be reduced by the waterproof liner 40, thereby preventing the beverage from penetrating in the longitudinal direction. The gas flow groove 16 strongly intrudes into the gas flow hole 13 . Therefore, the beverage can be stably suppressed from leaking through the gas flow hole 13 .

In addition, in this embodiment, the waterproof gasket 40 is disposed opposite to the lateral gas flow groove 17 (ie, the lateral gas flow channel) from the lower side. Therefore, when the beverage container 100 is tilted violently when drinking a beverage, or when the container is subjected to a strong impact in the inverted direction, the intensity of the movement of the beverage in the container body 2 will be reduced by the waterproof liner 40, and the beverage can be restrained from moving freely. The transverse gas flow grooves 17 strongly penetrate the gas flow holes 13 through the longitudinal gas flow grooves 16 .

In addition, this embodiment has a waterproof liner 40, a liner peripheral wall 41, a sealing flange 42, and an extended flange 43. The sealing flange 42 of the waterproof liner 40 seals the upper opening 2d of the container body 2 and the lid. Between the top wall portions 10a of the body 10, the extending flanges 43 can also be used to stably prevent the beverage from leaking from the gas flow holes 13. In addition, when the waterproof gasket 40 is fitted into the barrel portion 14 , the extended flange 43 can serve as a pushing margin, so that the waterproof gasket 40 can be easily pushed in until it contacts the top of the cover body 10 Wall portion 10a. When the waterproof liner 40 is taken out from the barrel part 14, the extended flange 43 can be used as a grabbing margin, so that the waterproof liner 40 can be easily taken out.

Next, a lid assembly 1B according to a second embodiment of the present invention and a beverage container 100 having the lid assembly 1B will be described with reference to FIGS. 6 and 7 . The same structures in this embodiment as those in the previous embodiment will be given the same names or symbols, and their description will be omitted.

The cover assembly 1B of this embodiment is different from the cover assembly 1A described in the previous embodiments in the structure of the barrel portion 14 and the waterproof gasket 40 .

Please refer to Figures 6 and 7. In this embodiment, the longitudinal gas flow groove 16 of the barrel portion 14 is recessed from the inner circumferential surface of the barrel portion 14 toward the radially outer side, and extends downward from the gas flow hole 13, wherein , Figure 7 shows the relative positional relationship between the portion of the cylinder 14, the gas circulation hole 13 and the longitudinal gas circulation groove 16, and the waterproof gasket 40 is omitted from the illustration. Furthermore, in this embodiment, the barrel 14 does not have lateral gas flow grooves 17 (ie, lateral gas flow channels).

In addition, the cylindrical portion 14 has a step surface 14a. The step surface 14a is located in the portion of the cylindrical portion 14 where the longitudinal gas flow groove 16 is provided in the circumferential direction (thick wall portion at the rear end of the cylindrical portion 14). The step surface 14a expands inwardly from the inner circumferential surface of the cylindrical portion 14, and is positioned above the lower end surface of the cylindrical portion 14 and faces downward. The step surface 14a is formed in a planar shape extending in a direction perpendicular to the central axis C.

In addition, the gas flow hole 13 has a portion (upper portion) that penetrates the top wall portion 10 a in the vertical direction, and a portion (lower portion) extending downward from the portion and located within the thick wall portion of the cylindrical portion 14 . The lower end of the gas flow hole 13 is opened to the step surface 14a. That is, in this embodiment, a part of the gas flow hole 13 extends in the up and down direction within the peripheral wall of the cylinder portion 14 .

The extended flange 43 of the waterproof gasket 40 has a transverse extension part 43a and a longitudinal extension part 43b. The transverse extension portion 43a extends radially inward from the lower end of the pad peripheral wall 41 . The transverse extending portion 43a is in the shape of an annular plate centered on the central axis C. A gap is provided between the upper surface of the transversely extending portion 43a and the lower end surface of the cylindrical portion 14.

The longitudinally extending portion 43b protrudes upward from the inner peripheral portion of the transversely extending portion 43a. The longitudinally extending portion 43b has a cylindrical shape centered on the central axis C and extends in the up-down direction. The lower end of the cylindrical portion 14 is disposed between the longitudinally extending portion 43b and the pad peripheral wall 41 in the radial direction. The outer circumferential surface of the longitudinally extending portion 43b and the inner circumferential surface of the lower end portion of the cylindrical portion 14 are opposed to each other in contact with each other or with a gap therebetween.

A flow channel (longitudinal gas flow channel) for air circulation is provided between the outer peripheral surface of the longitudinally extending portion 43b and the longitudinal gas flow groove 16 of the cylindrical portion 14. The longitudinal gas flow channel is connected to the lower end of the gas flow hole 13 . Furthermore, in this embodiment, the upper end surface of the longitudinally extending portion 43b is in contact with the step surface 14a. Thereby, the waterproof gasket 40 communicatively seals the space between the gas flow hole 13 and the inside of the container body 2 .

The cap assembly 1B and beverage container 100 of this embodiment described above can achieve the same effects as those of the previous embodiment.

In addition, in this embodiment, the elastically deformable waterproof liner 40 seals the space between the gas flow hole 13 and the interior of the container body 2 in a communicable manner. In this way, the waterproof gasket 40 can stably prevent the beverage from leaking from the gas flow hole 13 . For example, assuming that the user tilts the beverage container 100 with the mouthpiece 11 of the mouthpiece and maintains this state until a period of time elapses before drinking the beverage in the container body 2 , even in this case, the gas flow hole 13 can be suppressed. It is sealed with the inside of the container body 2 , causing the beverage to leak from the gas circulation hole 13 . Moreover, when the user holds the mouthpiece 11 and drinks the beverage in the container body 2 through the liquid flow hole 12, when air is sucked into the container body 2 from the gas flow hole 13 due to the decompression in the container body 2, the waterproof liner 40 The elastic deformation can communicate the outside and the inside of the container body 2 through the gas flow hole 13 . In addition, when the air intake from the gas flow hole 13 into the container body 2 is stopped, the waterproof gasket 40 deforms and recovers to seal the space between the gas flow hole 13 and the inside of the container body 2 again. That is, in this embodiment, since the waterproof gasket 40 plays the role or function of a switch valve, the simplified structure can make the above-mentioned effects of the present invention more significant.

In addition, in this embodiment, since the rigidity of the extended flange 43 is higher than that of other parts, when fitting the waterproof liner 40 to the barrel portion 14, the extended flange 43 can be used as a pressing margin, which makes it easier Press in the waterproof liner 40. In addition, when the waterproof liner 40 is removed from the barrel portion 14 , the extended flange 43 with higher rigidity can be used as a grabbing margin, so that the waterproof liner 40 can be removed more easily.

Next, the lid assembly 1C and the beverage container 100 having the lid assembly 1C according to the third embodiment of the present invention will be described with reference to FIGS. 8 and 9 . In this embodiment, the same structures as those in the previous embodiment are given the same names or symbols, and descriptions thereof are omitted.

The cover assembly 1C of this embodiment is different from the cover assemblies 1A and 1B described in the previous embodiments in the structure of the barrel portion 14 and the waterproof gasket 40 .

Please refer to FIG. 8 and FIG. 9 . The barrel 14 of this embodiment does not have a longitudinal gas flow groove 16 (ie, a longitudinal gas flow channel) and a transverse gas flow slot 17 (ie, a transverse gas flow channel). In FIG. 9 shows the relative positional relationship between the cylinder portion 14, the gas circulation hole 13 and the longitudinal gas circulation groove 16, and the waterproof gasket 40 is omitted from the illustration. In addition, the lower end surface of the thick-walled portion at the rear end of the cylindrical portion 14 protrudes further downward than the lower end surface of the portion of the cylindrical portion 14 other than the thick-walled portion. The lower end surface of the thick portion of the cylindrical portion 14 is formed into a flat surface extending in a direction perpendicular to the central axis C.

In addition, the gas flow hole 13 has a portion (upper side portion) that penetrates the top wall portion 10a in the vertical direction, and a portion (upper side portion) that extends downward from the portion and penetrates the thick wall portion of the cylindrical portion 14 in the vertical direction. ). The lower end portion of the gas flow hole 13 is opened to the lower end surface of the thick portion of the cylindrical portion 14 .

The extended flange 43 of the waterproof gasket 40 protrudes radially inward from the portion of the cylindrical portion 14 other than the thick wall portion. In the example shown in the figure, the amount of protrusion of the extension flange 43 inward from the inner circumferential surface of the portion other than the thick portion of the cylindrical portion 14 is larger than the wall thickness of the portion. Therefore, the rigidity of the extension flange 43 is improved.

In addition, the upper surface of the extension flange 43 is in contact with the lower end surface of the thick portion of the cylindrical portion 14 . Thereby, the extending flange 43 will block the opening at the lower end of the gas flow hole 13 . That is, the waterproof gasket 40 can communicate with each other between the gas flow hole 13 and the interior of the container body 2 . In addition, a gap is provided between the upper surface of the extended flange 43 and the lower end surface of the portion of the cylindrical portion 14 other than the thick wall portion.

The cap assembly 1C and the beverage container 100 of this embodiment described above can achieve the same effects as the previous embodiments.

The example shown in the first embodiment is an example in which a gap is provided between the upper surface of the extended flange 43 of the waterproof gasket 40 and the lower end surface of the tube portion 14, but the present invention is not limited thereto. That is, when the manufacturing error of the component is reduced to a sufficiently small level, the upper surface of the extension flange 43 may be brought into contact with the lower end surface of the cylindrical portion 14 . In the first embodiment, the lower end surface of the cylindrical portion 14 is provided with a transverse gas flow groove 17 (transverse gas flow channel). Therefore, even if the upper surface of the extended flange 43 contacts the lower end surface of the cylindrical portion 14, the air can flow freely. The gas flow holes 13 are stably sucked into the container body 2 through the longitudinal gas flow grooves 16 and the transverse gas flow grooves 17 without being affected by the elastic deformation of the waterproof liner 40 .

In the example described in the aforementioned embodiment, the lid body 10 has a nozzle portion 11 that protrudes upward from the top wall portion 10 a of the lid body 10 , and penetrates the nozzle portion 11 in the up and down direction to communicate with the inside and outside of the container body 2 . liquid flow port 12, but the present invention is not limited thereto. That is, even if the spout 11 is made of an elastic member, the user can hold the spout 11 and drink the beverage in the container body 2 through the liquid flow port 12 . Although not particularly shown in the figure, specifically, the present invention can also be applied to the following structure: the cover body 10 has: an elastically deformable nozzle portion 11 that is detachably mounted on the top wall portion 10a and penetrates the nozzle in the up and down direction. The liquid flow port 12 communicates the inside and outside of the container body 2 with the inside of the portion 11 , and the straw member is installed continuously at the lower end of the liquid flow port 12 . However, in this case, the top wall portion 10a of the lid body 10, the nozzle portion 11, and the straw member are formed as separate members.

Although the above embodiment illustrates the application of the present invention to the above-mentioned beverage container 100 having the functions of heat preservation and cold preservation by including the container body 2 having a vacuum insulation structure, the present invention is not limited thereto. That is, the present invention can be widely applied to beverage containers in which the lid assembly is detachably mounted on the head and neck of the container body.

In the present invention, the structures described in the above embodiments or modifications, for example, can be combined, other structures added, omitted, replaced, or other changes can be made without departing from the spirit of the invention. In addition, the present invention is not limited to the above-described embodiments and is limited only by the scope of the patent application.

[customary knowledge] without [Invention] 100: Beverage containers 1A, 1B, 1C: cover assembly 2: Container body 2a: Bottom surface 2b: Ontology part 2c: Head and neck 2d: Upper section opening 2e:shoulders 4: Outer container 5:Inner container 6: Vacuum insulation department 7: Male thread part 10: Cover the body 10a: Top wall part 10b: Peripheral wall 11: Pipe mouth 12: Liquid flow port 13: Gas flow hole 14: Barrel part 14a: Step difference surface 15:Female thread part 16: Longitudinal gas flow groove 17: Lateral gas flow groove 20: Cover 20a: cover top wall 20b: Cover peripheral wall 20c: Hole 20d: Support tube 21: Liquid-proof sealing part 21a: Shaft 21b: embolization part 22: Gas barrier sealing part 30:First hinge 40:Waterproof liner 41:Packing peripheral wall 42:Sealing flange 42a:Trench 42b: Flange part 43:Extended flange 43a: Lateral extension 43b: Longitudinal extension 50: Cover locking member 51:Inner hinge part 52:Lock component 52a: Upper arm 52b: Lower arm 53:Outer hinge part 54:Ring stopper 55:Second hinge 56:Hook 57:Compression coil spring 58:Locked Department 59: Stopped part C: central axis A: Hinge center axis

[Fig. 1] is a perspective view of a beverage container according to the first embodiment of the present invention; [Fig. 2] is a schematic cross-sectional view of the beverage container according to the first embodiment of the present invention; [Fig. 3] is a partial cross-sectional schematic diagram of the lid of the beverage container in a closed state according to the first embodiment of the present invention; [Fig. 4] is a partial cross-sectional schematic view of the lid of the beverage container in an open state according to the first embodiment of the present invention; [Fig. 5] is a partial perspective view of the cover body according to the first embodiment of the present invention; [Fig. 6] is a partial cross-sectional schematic diagram of a beverage container according to the second embodiment of the present invention; [Fig. 7] is a partial perspective view of the cover body according to the second embodiment of the present invention; [Fig. 8] is a partial cross-sectional schematic diagram of a beverage container according to the third embodiment of the present invention; and [Fig. 9] is a partial perspective view of the cover body according to the third embodiment of the present invention.

100: Beverage containers

1A: Cover assembly

2: Container body

2b: Ontology part

2c: Head and neck

2d: Upper section opening

2e:shoulders

4: Outer container

5:Inner container

6: Vacuum insulation department

7: Male thread part

10: Cover the body

10a: Top wall part

10b: Peripheral wall

11: Pipe mouth

12: Liquid flow port

13: Gas flow hole

14: Barrel part

15:Female thread part

16: Longitudinal gas flow groove

17: Lateral gas flow groove

20: Cover

20a: cover top wall

20b: Cover peripheral wall

20c: Hole

20d: Support tube

21: Liquid-proof sealing part

21a: Shaft

21b: embolization part

22: Gas barrier sealing part

30:First hinge

40:Waterproof liner

41:Packing peripheral wall

42:Sealing flange

42a:Trench

42b: Flange part

43:Extended flange

50: Cover locking member

51:Inner hinge part

52:Lock component

52a: Upper arm

52b: Lower arm

53:Outer hinge part

54:Ring stopper

55:Second hinge

56:Hook

57:Compression coil spring

58:Locked Department

59: Stopped part

C: central axis

A: Hinge center axis

Claims (8)

A cover assembly, which is used to be installed on a container body with an opening in the upper section, and includes: a cover body, which has a top wall part and a peripheral wall part, and is used to block an upper opening part of the container body; a cover A body is provided on the upper side of the lid body; a hinge connects the lid body to the lid body in a freely rotatable manner; and a waterproof liner is capable of sealing the container body and the lid body. space; wherein, the lid body is provided with a liquid flow port and a gas flow hole, and it also has a cylindrical portion, and the liquid flow hole and the gas flow hole penetrate the top wall portion in the up and down direction to communicate with the container. Outside and inside the body, the liquid flow port and the gas flow hole are covered by the cover. Viewed from the lower side, the gas flow hole can be covered by the waterproof liner; the barrel part is from the top wall part Extending toward the lower side and viewed from the lower side, it surrounds the liquid flow port. The cylinder portion has a longitudinal gas flow groove. The longitudinal gas flow groove is recessed in the radial direction from the outer circumferential surface of the cylinder portion and is radially recessed from the outer peripheral surface of the cylinder portion. The gas circulation hole extends downward, and when viewed from the lower side, the waterproof liner can cover the longitudinal gas circulation groove. The cover assembly according to claim 1, wherein the barrel portion has a transverse gas flow groove, the transverse gas flow groove is recessed from the bottom surface of the barrel toward the upper side and extends in the radial direction, and communicates with the longitudinal gas flow The waterproof liner is connected with the lateral gas flow groove from the lower side and is opposite to the lateral gas flow groove. The cover assembly according to claim 1, wherein the cover body has the barrel portion, the barrel portion extends downward from the top wall portion, and when viewed from the lower side, it surrounds the liquid flow port, and the waterproof The liner includes: a liner peripheral wall, which is embedded in the barrel from the outside; a sealing flange, which expands from the liner peripheral wall toward the radially outward side to seal the upper opening of the container body and the lid body. between the top wall portions; and An extension flange extends radially inward from the bottom end of the liner peripheral wall. When viewed from the lower side, in the waterproof liner, at least the extension flange overlaps with the gas flow hole. The cover assembly according to claim 3, wherein the waterproof liner can be elastically deformed to communicatively seal between the gas flow hole and the interior of the container body. The cover assembly of claim 4, wherein the center of the liquid flow opening is further forward than the central axis of the container body, and the gas flow hole is located between the liquid flow opening and the hinge in the front-to-back direction. position between. The cover assembly according to any one of claims 1 to 5, wherein the cover body further includes a nozzle part, the nozzle part is elastically deformable, and the nozzle part and the top wall part are formed of different materials. , and the liquid flow port is provided inside the nozzle. A beverage container has a lid assembly as described in any one of claims 1 to 6, and a container body equipped with the lid assembly. The beverage container according to claim 7, wherein the container body has a vacuum insulation structure.

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