A latch structure according to an embodiment includes a body, a locking body, a latch head, a plunger, and a latch stopper. The body is disposed inside a door. The locking body moves in response to an external operation. The latch head protrudes from the body to maintain the door in a closed position, and rotates when the locking body is spaced apart at least a predetermined distance. The plunger retracts into the body to prevent the latch head from rotating while the door is being closed. The latch stopper prevents the protruding latch head from retracting into the body when the plunger is maintained within the body.

A latch structure according to an embodiment includes a body, a locking body, a latch head, a plunger, and a latch stopper. The body is disposed inside a door. The locking body moves in response to an external operation. The latch head protrudes from the body to maintain the door in a closed position, and rotates when the locking body is spaced apart at least a predetermined distance. The plunger retracts into the body to prevent the latch head from rotating while the door is being closed. The latch stopper prevents the protruding latch head from retracting into the body when the plunger is maintained within the body.

A package delivery box 100 is disclosed. It comprises a container 101 for accommodating at least one package, an openable lid 102 attached to the container 101, a closing mechanism for closing the container 101, and a locking mechanism for locking the closed container 101. The closing mechanism comprises a pressure plate 103 at a base of the container 101, a string 105 connecting the pressure plate 103 with the lid, and at least one pull spring 106 between the lid 102 and the container 101, and the locking mechanism comprises a flexible rod 104 beneath the pressure plate 103 and directly connected to the pressure plate 103, a slider 109 connected to the flexible rod, and a hole 110 in the lid, wherein the hole 110 is adapted to accommodate insertion of the flexible rod 104 therein.

A package delivery box 100 is disclosed. It comprises a container 101 for accommodating at least one package, an openable lid 102 attached to the container 101, a closing mechanism for closing the container 101, and a locking mechanism for locking the closed container 101. The closing mechanism comprises a pressure plate 103 at a base of the container 101, a string 105 connecting the pressure plate 103 with the lid, and at least one pull spring 106 between the lid 102 and the container 101, and the locking mechanism comprises a flexible rod 104 beneath the pressure plate 103 and directly connected to the pressure plate 103, a slider 109 connected to the flexible rod, and a hole 110 in the lid, wherein the hole 110 is adapted to accommodate insertion of the flexible rod 104 therein.

The invention is a sliding latch with a bolt sliding in and out of a primary housing from a closed condition to an open condition on a sled that also slides in the housing. A spring biases the bolt to extend out of the housing to the closed condition. The bolt can be moved to an open condition by an electric motor mounted on the sled that rotates a threaded member to move a nut in a cavity in the bolt that pulls the bolt against the spring bias. The bolt can also be moved to an open condition by a force directly on the bolt against the spring bias. The bolt can also be moved to an open condition by a force pulling on the sled to move the sled and nut so the nut pulls the bolt against the spring bias to an open condition.

An anti-unlocked mechanism comprises a transmission gear, a sliding rod, a locking member and a first elastic member. The transmission gear includes an arc surface. An end of the sliding rod contacts the deadbolt of the lock body. The sliding rod is provided with a fixed stopper and a second elastic member. When the deadbolt is retracted, the sliding rod moves with the deadbolt against the elastic force of the second elastic member. When the deadbolt extends, the locking member moves with the sliding rod to block the rotation of the rotating part. The first elastic member comprises first and second protrusions. The second protrusion will not hinder the fixed stopper of the slide rod unless the first protrusion contacts with the circular arc surface, which will block the movement of the locking member to block rotation of the rotating part.

A neonatal incubator system includes an enclosure having side panels that create a chamber that receives an infant. At least one of the side panels is movable between an upright closed position and a retracted open position. A side panel latch assembly is positioned to permit and prevent movement of the movable side panel between the open and closed positions. The side panel latch assembly includes a movable latch lever having a primary latch member and a secondary latch member that are spaced from each other. The primary latch member engages a first catch on a latch receptable to hold the side panel latch assembly in the latched position. The secondary latch member engages a second catch on the latch receptacle when the side panel is partially open. The primary and secondary latch members move together with the latch lever to release both the primary and secondary latch members.

A latching system for securing a door to a panel includes a pawl having a first end that is configured to releasably engage a striker on the panel, and a second end opposite the first end having a connector. A pawl connector is connected to the connector on the second end of the pawl. The pawl connector includes a hollow cylindrical body having a longitudinal axis, a revolved outer side wall extending about the longitudinal axis, an open end through which the connector of the pawl is positioned, an opening defined on the revolved side wall of the cylindrical body, and a deformable portion formed on the revolved outer side wall. The deformable portion extends between the open end and the opening. The deformable portion is configured to elastically deform upon inserting the connector through the open end until the connector is non-removably seated within the opening.

A latching system for securing a door to a panel includes a pawl having a first end that is configured to releasably engage a striker on the panel, and a second end opposite the first end having a connector. A pawl connector is connected to the connector on the second end of the pawl. The pawl connector includes a hollow cylindrical body having a longitudinal axis, a revolved outer side wall extending about the longitudinal axis, an open end through which the connector of the pawl is positioned, an opening defined on the revolved side wall of the cylindrical body, and a deformable portion formed on the revolved outer side wall. The deformable portion extends between the open end and the opening. The deformable portion is configured to elastically deform upon inserting the connector through the open end until the connector is non-removably seated within the opening.

A latch mechanism includes a main body engagement unit arranged in a main body having an opening/closing body that opens/closes, and opening/closing body engagement unit arranged in the opening/closing body to engage with the main body engagement unit when the opening/closing body is closed, in which the main body engagement unit is configured to include a first engagement body having a pair of first top portions displaced in a direction orthogonal to a closing direction of the opening/closing body, the opening/closing body engagement unit is configured to include a second engagement body having a pair of second top portions respectively coming into contact with the pair of first top portions, and the second engagement body has a first slope that applies a force in a direction to open the opening/closing body to the second engagement body in a state where the other first top portion of the pair of first top portions is in contact with the second top portion, when one second top portion of the pair of second top portions comes into contact with one first top portion of the pair of first top portions while the opening/closing body is closed.