The lid includes a body having a top surface and a bottom surface, the top surface includes a groove therein separating an inner portion and an outer portion. The lid also includes a flexible skirt integrally joined to and carried by the outer periphery edge of the body. The groove defines a flexible zone which permits the flexible skirt to flip between a first position and a second position. The method of using the lid includes the step of positioning the lid with the flexible skirt in a second position above an open end of a container. The method further includes the step of securing the lid and the container together by moving the flexible skirt from the second position to a first position to cause engagement of the flexible skirt with the container thereby forming a removable attachment and a substantial seal between the lid and the container.

A cap (100) for a container comprises a disc-shaped top section (102), an annular side section (104) projecting from said disc-shaped top section (102), and a locking flange (111) disposed at an extremity of said annular side section (104) opposite said disc-shaped top section (102), and further comprises a locking flap (116) extending from said annular side section (104), which is mobile between a locked first position wherein a portion (114) of the locking flange (111) extends inwardly from the annular side section (104), and an unlocked second position wherein the locking flange (111) is at least partially recessed relative to the annular side section (104).

A cap (100) for a container comprises a disc-shaped top section (102), an annular side section (104) projecting from said disc-shaped top section (102), and a locking flange (111) disposed at an extremity of said annular side section (104) opposite said disc-shaped top section (102), and further comprises a locking flap (116) extending from said annular side section (104), which is mobile between a locked first position wherein a portion (114) of the locking flange (111) extends inwardly from the annular side section (104), and an unlocked second position wherein the locking flange (111) is at least partially recessed relative to the annular side section (104).

This disclosure provides a box lid and an airtight box and belongs to the technical field of food preservation boxes. The box lid comprises: a lid body; and a sealing ring connected to the lid body, the sealing ring comprising an inclined portion inclined inwards, wherein the inclined portion can produce elastic deformation and is deformable to a sealing state. The beneficial effects of this disclosure are as follows: The specially designed sealing ring allows the airtight box to maintain an airtight effect when the interior is in a positive pressure environment, so the airtight box does not need air release after being sealed. When the box lid reaches the sealing position from the contact position, the air pressure in the box increases to assist the inclined portion of the sealing ring to achieve sealing.

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 latch assembly having first and second parts for association with first and second elements, respectively. The first and second parts are configured to cooperate to releasably secure the first element to the second element. The first part has a latch member for releasably engaging a catch member on the second part when the latch member is manipulated from an unlatched configuration to a latched configuration. A latch member holder associated with the first part is adapted to hold the latch member while allowing the latch member to pivot about a pivot axis, and slide along a sliding axis which is perpendicular to said pivot axis. The latch member is manipulable into the latched configuration in a predetermined range of contiguous positions relative to the latch member holder along the sliding axis. A method of releasably securing the first element to the second element is also disclosed.

A latch assembly having first and second parts for association with first and second elements, respectively. The first and second parts are configured to cooperate to releasably secure the first element to the second element. The first part has a latch member for releasably engaging a catch member on the second part when the latch member is manipulated from an unlatched configuration to a latched configuration. A latch member holder associated with the first part is adapted to hold the latch member while allowing the latch member to pivot about a pivot axis, and slide along a sliding axis which is perpendicular to said pivot axis. The latch member is manipulable into the latched configuration in a predetermined range of contiguous positions relative to the latch member holder along the sliding axis. A method of releasably securing the first element to the second element is also disclosed.

A vacuum freshness preservation container that can be pressed on two sides provided in this application includes a container body and container cove. The container cover has chambers disposed symmetrically, a piston is slidably disposed in each chamber, and each chamber has an air outlet which communicates with an interior of the container body and where a first check valve is disposed. The piston is provided with an air discharge structure that communicates the chamber with an outside when the piston moves toward the first check valve, and the container cover is provided with a linkage mechanism such that the two pistons move in opposite directions. By alternately pressing pistons in two chambers, the chambers always keep in a vacuumizing state, thereby achieving a higher efficiency.

A container is disclosed that has a base and a lid that is rotatable about a hinge from a closed configuration to an open configuration. The lid may be secured to the base with a latch assembly. A latch assembly may have a locked position and an unlocked position, where the latch assembly includes: a latch body pivotally connected to the lid, a latch button slidably connected with the latch body, the latch button having a latch button-locking member, a latch-locking arm pivotally connected to the latch body, and a latch-locking arm biasing member that exerts a rotational force on the latch-locking arm. When the latch assembly is moved to the locked position, the latch-locking arm may engage the base and rotate against the rotational force from the latch-locking arm causing the latch button to move against the linear force until the latch button-locking member engages the arm-locking member.

A container is disclosed that has a base and a lid that is rotatable about a hinge from a closed configuration to an open configuration. The lid may be secured to the base with a latch assembly. A latch assembly may have a locked position and an unlocked position, where the latch assembly includes: a latch body pivotally connected to the lid, a latch button slidably connected with the latch body, the latch button having a latch button-locking member, a latch-locking arm pivotally connected to the latch body, and a latch-locking arm biasing member that exerts a rotational force on the latch-locking arm. When the latch assembly is moved to the locked position, the latch-locking arm may engage the base and rotate against the rotational force from the latch-locking arm causing the latch button to move against the linear force until the latch button-locking member engages the arm-locking member.