A latch includes a housing that has a first side and a second side. The latch includes a bolt locking assembly that is positioned at least partially within the housing. The bolt locking assembly includes a bolt movable between first and second positions relative to at least one of the first and second sides of the housing. The bolt is positionable to selectively extend from either the first side or the second of the housing. The latch includes a first handing configuration and a second handing configuration, where the first handing configuration corresponds to the first position and the second handing configuration corresponds to the second position. Changing between the first handing configuration and the second handing configuration requires moving the bolt locking assembly to a disengaged position and applying the external force to the bolt to move the bolt between the first and second positions.

An idling switch structure of a shaft of an electronic lock contains: a holding plate, a shell, an electric drive unit, a switching unit, and a manual rotation unit. The holding plate includes a peripheral fringe, multiple positioning posts, a fixing seat, two locating portions, a column, a receiving area, a limiting rib, an extension, and a bolt seat. The shell includes a covering space, multiple recesses, and a locking orifice. The electric drive unit includes a drive wheel, a motor body, and a transmission wheel having a central orifice and two rotation protrusions. The drive wheel has a central orifice, a tooth portion, and an actuation gear. The motor body has two stands and a worm. The switching unit includes a driven sheet, a slider, a first spring, a second spring, and a driving element. The manual rotation unit includes a lock bolt and a key.

A system, method, and device for operations of an electrically motorized vehicle. The vehicle can utilize an electrically motorized wheel to convert a non-motorized wheeled vehicle to an electrically motorized wheeled vehicle. One system includes a server in communication with the device of each of a plurality of electrically motorized wheels, the server operable to track a position of each of the electrically motorized wheels and communicate the position thereof to a transportation network.

The embodiments herein provide a secure package delivery and pick-up system. The system comprises a security door with several collapsible storage compartments for accommodating packages meant for delivery or pick-up. The size of the compartments are configured to accommodate packages of different sizes and weights. The system enables secure delivery and return pick-up of packages at unmanned location by using security measures such as electronic key generation, biometric identification, RFID, video cameras. The user is facilitated to monitor the delivery and pick-up activity remotely through a mobile application downloaded on the computing device. The system is easy to install and provides protection of the packages form theft or damages due to weather conditions. The system enables user to share secure electronic keys with other users for a predetermined duration for accessing the building through the secure door and for usage of the storage compartments.

Disclosed are a door lock and a door system, the door lock includes: a lock body, the lock body including a lock case, a spring bolt assembly and a shifting sleeve, the spring bolt assembly being slidably arranged in the lock case, so as to be able to extend and retract relative to the lock case, the shifting sleeve being rotatably arranged in the lock case, and the shifting sleeve being in transmission connection with the spring bolt assembly; and a first handle assembly, the first handle assembly being provided with a locking head and a motor, the locking head being rotatabversly provided with a shifting head, the shifting head being in transmission connection with the shifting sleeve, and an output shaft of the motor being in transmission connection with the shifting head, so as to be able to drive the shifting head to rotate.

A dresser for discretely securing items; the dresser for discretely securing items includes a housing with at least two visible drawers, a dresser top having a hidden drawer, a latch mechanism, and an opener. In one embodiment, the opener is a lock and key. In another embodiment, the opener is a fingerprint scanner. The dresser provides a safe, secured, discreet way to store personal belongings of value, including money and jewelry.

Disclosed are a control method for an electronic lock and an electronic lock based on the control method. The electronic lock has a simple structure, and jointly control a snap hole on the handle with a telescopic body of the electromagnet located on the lock body base and a push rod controlled by the unlock mechanism. The telescopic body of the electromagnet has the characteristics of self-holding function when power off through the first permanent magnet, which not only the hidden danger of illegal unlocking through mechanical structure is solved, but also the power consumption of electronic lock in preventing illegal lock opening can be greatly reduced. The market's technical requirements for electronic locks can be met, and high promotion value can be obtained.

Methods of protecting an electrically motorized human-powered vehicle are disclosed. A method may include transmitting, from a remote server, a security input relating to a user of the vehicle; receiving, at the electrically motorized human-powered vehicle the security input relating to the user; validating the security input; and enabling one of a first or second set of features based on the security input, wherein the second set of features is different from the first set of features and wherein one of set of features includes a service mode that enables maintenance access to the vehicle.

Disclosed are a control method for an electronic lock and an electronic lock based on the control method. The electronic lock has a simple structure, and jointly control a snap hole on the handle with a telescopic body of the electromagnet located on the lock body base and a push rod controlled by the unlock mechanism. The telescopic body of the electromagnet has the characteristics of self-holding function when power off through the first permanent magnet, which not only the hidden danger of illegal unlocking through mechanical structure is solved, but also the power consumption of electronic lock in preventing illegal lock opening can be greatly reduced. The market's technical requirements for electronic locks can be met, and high promotion value can be obtained.

The embodiments herein provide a secure package delivery and pick-up system. The system comprises a security door with several collapsible storage compartments for accommodating packages meant for delivery or pick-up. The size of the compartments are configured to accommodate packages of different sizes and weights. The system enables secure delivery and return pick-up of packages at unmanned location by using security measures such as electronic key generation, biometric identification, RFID, video cameras. The user is facilitated to monitor the delivery and pick-up activity remotely through a mobile application downloaded on the computing device. The system is easy to install and provides protection of the packages form theft or damages due to weather conditions. The system enables user to share secure electronic keys with other users for a predetermined duration for accessing the building through the secure door and for usage of the storage compartments.