Disclosed is a test barrel, to prevent a test liquid in the barrel from sputtering into a connection gap due to shaking of the barrel to hence cause contamination, improve the measurement accuracy in case of multiple tests, and meanwhile improve the operability of screwing on and screwing off the entire device during use of the device. The above technical objective of this utility model is implemented by employing the following technical solution: a test barrel, comprising barrel lid and a barrel body; wherein the threaded rings are arranged on an inner wall of a side face of the barrel lid and an outer wall of an opening of the barrel body, a rotary force applying portion is arranged on an outer wall of the side face of the barrel lid, and during engagement, a liquid blocking washer is arranged between the barrel lid and the barrel body, wherein a radial width of the liquid blocking washer is greater than a thickness of the opening of the barrel body.

A packaging, especially for food, including a cardboard shell and a cover placed thereon in the closed state and which engages over the outside of an upper edge of the shell. Inwardly protruding nubs arranged at at least two opposing side walls of the cover interact with retaining elements at associated side walls of the shell. The side walls having the retaining elements each have a wall portion which is connected to the bottom of the shell by a bend, a first reinforcing portion connected to the upper end of the wall portion by a bend, a second reinforcing portion connected to the first reinforcing portion by a bend and an adhesive-secured portion connected to the second reinforcing portion by a bend and which is adhesively bonded to the outer side of the wall portion. A sub-portion of the wall portion that lies above the adhesive-secured portion, and the first and second reinforcing portions delimit a triangular channel. The retaining elements are formed by edges of openings in or by downwardly directed outer surfaces of the second reinforcing portions.

A paper lid for a container includes a body portion, a top lid portion having an outer periphery surrounded by the body portion, and an engaging portion in the body portion that includes a tapered portion tapering in the same direction as the container taper and engages with the container curl portion. The body portion has a first end portion for mounting on the container and an opposite second end portion. The outer periphery is bent toward the first end portion, and has a bent portion bonded to the body portion. A part other than the outer periphery is between the engaging portion and the second end portion. An inner diameter of a tip of the tapered portion is smaller than an outer diameter of the container curl portion. Where the lid closes the container opening, the container curl portion contacts an inner part of the tapered portion.

Container (1) for foodstuffs comprising a main body (2) having a bottom wall (2a) and a perimeter side wall (2c) connected to the bottom wall (2a) so as to define a containment volume for foodstuffs. The perimeter side wall (2b) being provided with an edge portion (2c) distal from the bottom wall (2a).

The container (1) comprises a lid (3) comprising a central portion (3a) and engagement tabs (3b) extending from a perimeter portion (3c) of the central portion (3a) and configured to hook or to be hooked to the edge portion (2c) of the main body (2) so as to define a configuration for engaging the lid (3) with the main body (2). The central portion (3a) can be pressed by a user so as to obtain a movement of the engagement tabs (3b) away from the edge portion (2c), defining a configuration for disengaging the lid (3) from the main body (2).

A cup lid includes a lid body and a label placement structure. A sip hole structure and a through hole are formed at different positions on a top surface of the lid body, and the sip hole structure includes a flip-top lid, a protruding buckle formed on the flip-top lid, and a buckle groove located on one side of the flip-top lid; and the label placement structure is disposed on the top surface of the lid body, where the label placement structure includes a plurality of clamping arms protruding from the top surface of the lid body, and when a label is inserted into the label placement structure, the clamping arms clamp two sides of the label. In addition, a cup lid attached with a tea bag is also provided.

A buckling structure includes a cover and a box, wherein the cover and box are each made of paper, plastic, or a combination thereof. In one embodiment, the box includes a box body and a straight line part extending out of an edge of the box body; and the lid is configured to cover the box and includes a lid wall extending out of an edge of the lid body, and a flange arranged on an inner side wall of the lid wall, wherein the flange and the lid body are spaced apart, and wherein in a cross section along a central axis of the box body, the angle between the straight line part and the central axis is smaller than or equal to 90 degrees, wherein in the cross section along the central axis of the box body, the flange comprises a section of lead-in part, a section of smooth part connected to the lead-in part, and a section of buckling part connected to the smooth part, the maximum diameter of the straight line part being greater than or equal to the minimum diameter of the lid wall, the buckling part is arc-shaped and has a central angle that is greater than 90 degrees, and when the lid is disposed over and fitted to the box, the straight line part is configured to be clamped between the buckling part and the lid body.

The present disclosure relates generally to containers and container lids. In at least one embodiment, the disclosed containers and container lids provide a liquid-tight seal with the inclusion of a separately attached ring that generally eliminates material-trapping seams. For example, in certain embodiments, a container and a container ring for attaching to the rim of the container is disclosed. In these embodiments, the container ring attaches to the rim of the container such that a liquid-tight vertical seal is formed, thereby reducing or eliminating material-trapping seams.

An insulated container having a canister can be sealed by a lid structure. The lid structure can be a multi-part insulated lid. The lid can include a vent configured to vent air from inside the canister. In addition, the container may be part of a container kit or container system where one or more inner containers, are nested and secured within the insulated container.

Disclosed are a container cover and a vacuum preservation container. The container cover comprises a cover body and an air extraction assembly, wherein a first through hole is provided in the cover body, the air extraction assembly comprises an outer cover and an inner cover, the inner cover is arranged on an upper end of the first through hole in a sealing manner, a second through hole and a third through hole are provided in the inner cover, the second through hole is in communication with the first through hole, a first one-way valve is arranged in the second through hole, and a second one-way valve is arranged in the third through hole.

A formulation dispensing device can include a cartridge receptacle to accommodate and/or secure a beverage ingredient cartridge and permit contents within the cartridge to flow into a bottle or beverage container. Additionally, a formulation dispensing device can include a drink through valve that can permit mixed contents from a beverage container to flow through the drink through valve and be consumed. For example, the formulation dispensing device can include ingredients that can be added to a range of different drinks, including sports drinks, dietary drinks, and as a critical life supporting drinks in humanitarian situations. The formulation dispensing device can also include a lid configured to pivot between open and closed positions and can seal the dispensing device which allows the beverage container to be inverted during consumption without leakage through the first aperture.