Abstract: A battery pack includes a battery seat and a lock assembly. The lock assembly has a button disposed in the battery seat and has two opposite first inclined surfaces, and two lock members disposed in the battery seat and located at two opposite sides of the button. The lock members each have a second inclined surface abutted against the first inclined surface of the button, such that the lock members are pushed closer to each other by the button to move from a lock position to an unlock position, thus unlocking the battery pack from an electronic device. Thus, the present invention allows a user to hold the battery seat by one hand and operate the button by an index finger of the same hand for achieving an unlocking effect. Further, the present invention provides a method of disassembling the battery pack from the electronic device.

Abstract: A visual identification positioning system includes a first positioning member, a second positioning member, and a mowing robot. The mowing robot has a visual identification unit and a computation unit. The visual identification unit identifies a first identification feature of the first positioning member and a second identification feature of the second positioning member to generate first and second signals to the computation unit. The computation unit computes a first coordinate, a second coordinate, a first distance between the mowing robot and the first coordinate, and a second distance between the mowing robot and the second coordinate according to the first and second signals, and defines first and second ranges with the first and second coordinates as centers according to the first and second distances, and computes a coordinate of an intersection of the first and second ranges as a current location coordinate of the mowing robot.

Abstract: A mowing system includes a charging station, a base station, and a mowing robot. The base station and the charging station are set independently from each other. The base station has a first communication unit and a first GPS antenna. The mowing robot has a second GPS antenna and a control unit electrically connected with the second GPS antenna and wirelessly connected with the first GPS antenna, such that the control unit receives a first GPS signal obtained by the first GPS antenna and a second GPS signal obtained by the second GPS antenna and determines a positioning coordinate of the mower robot according to the first GPS signal and the second GPS signal. As such, the installation position of the base station is not restricted by the surrounding environment or the charging station so as to enhance positioning precision.

Abstract: A lift detection mechanism of a mowing robot includes a wheel set, a movable member, a transmitter, and a receiver. The wheel set has an axle rotatably and movably penetrated into a fixed seat, a wheel connected to the axle and located outside of the fixed seat, and a fixing member disposed to the axle and located in the fixed seat. The movable member is disposed to the axle and located in the fixed seat. One of the transmitter and the receiver is disposed to the movable member, and the other of the transmitter and the receiver is disposed to the fixed seat. As such, when the mowing robot is lifted by a user, the movable member is driven by an elastic member to move downwards until the transmitter and the receiver are staggered. As such, blades are controlled to stop working for preventing the user from being cut.

Abstract: A GPS positioning stake includes a supporting pole, a base connected with the supporting pole and having a GPS positioning module and a rotation axle, an adjustment board having an axle sleeving portion pivotably connected with the rotation axle and a solar panel providing electric energy for the operation of the GPS positioning module, and an angle adjusting device including a first gear fixedly sleeved onto the rotation axle, a second gear sleeved onto the rotation axle and located in the axle sleeving portion, an elastic member, and an operation member. The first and second gears engage when the operation member locks, disabling the adjustment board from rotation relative to the rotation axle, and separate when the operation member unlocks, enabling the adjustment board to drive the second gear to rotate relative to the rotation axle for adjusting the solar panel's light receiving angle for better energy conversion efficiency.

Abstract: A convertible tandem stroller frame is capable of locking in a tandem stroller mode for installing a second seat thereby concurrently transporting two occupants, and capable of converting said mode into a single seat mode for transporting single occupant by simply manipulating a release actuator at a front portion of the convertible tandem stroller frame. The convertible tandem stroller frame may include a front rack, a rear rack, at least a longitudinal telescopic mechanism and at least a locking mechanism. The front rack and the rear rack are lockably and adjustably connected by the longitudinal telescopic mechanism, so as to be extended into the tandem stroller mode and be retracted into the single seat mode. The locking mechanism is associated with the release actuator for locking and un-locking the longitudinal telescopic mechanism by manipulating in front of the convertible tandem stroller frame.

Abstract: A baby bouncer with a width variable frame is configured to have an erected configuration for use as a regular baby bouncer, and a folded configuration for reducing the width of the baby bouncer when being not in use. The frame of the baby bouncer includes at least a base frame, a pair of bouncing support rods and a baby carrier frame. The base frame and the bouncing support rods are associated by two gear elements. By meshing the first gear element and the second gear element, the bouncing support rods and the bouncing support rods are capable of simultaneously rotating in an opposite direction either in erecting or folding of the baby bouncer. When need to fold the frame of baby bouncer into the folded configuration, care-giver may unlock two lockable joints of the baby carrier frame and fold to associating the bouncing support rods and the base frame.

Abstract: A convertible tandem stroller frame is capable of locking in a tandem stroller mode for installing a second seat thereby concurrently transporting two occupants, and capable of converting said mode into a single seat mode for transporting single occupant by simply manipulating a release actuator at a front portion of the convertible tandem stroller frame. The convertible tandem stroller frame may include a front rack, a rear rack, at least a longitudinal telescopic mechanism and at least a locking mechanism. The front rack and the rear rack are lockably and adjustably connected by the longitudinal telescopic mechanism, so as to be extended into the tandem stroller mode and be retracted into the single seat mode. The locking mechanism is associated with the release actuator for locking and un-locking the longitudinal telescopic mechanism by manipulating in front of the convertible tandem stroller frame.

Abstract: A joint assembly with safety locking mechanisms for baby stroller, the baby stroller frame may have at least a front strut, a rear strut and an upper bar; and the joint assembly includes a lower joint member, an upper joint member, a first locking mechanism, a second locking mechanism and a release mechanism. The lower joint member is pivotally connected with the upper end of the front strut and pivots with the rear strut through a pivot mount atop the rear strut. The upper joint member pivots with the lower joint member and connects with the lower end of the upper bar. The first locking mechanism is adapted to releasably lock the lower joint member to the upper joint member thereby to inhibit the potential relative rotation between the lower joint member and the upper joint member. The second locking mechanism is adapted to releasably lock the rear strut to the joint assembly thereby to inhibit the potential relative rotation between the rear strut and the joint assembly.

Abstract: A wheeled tail platform comprises a platform, a pair of connecting rods, and a wheel assembly. The platform has an indent formed on its downside for positioning on a cross bar or a rear axle of the stroller frame. The wheel assembly is pivotally connected to the platform for supporting the platform at rear end. The connecting rods each has one end pivoted to a pair of rear wheel struts of the stroller frame respectively, and another end pivoted with a front end of the platform, so as to allow the platform to pivot and collapse upward and close to the rear wheel struts. A pair of grab-handle armrests is connected to a pair of handle bars of the stroller respectively for grabbing by the occupant's hand during standing on for traveling around. Through the connecting and arrangement as being depicted, the wheeled tail platform of the present invention is useable for making funs safely and collapsible with the stroller frame conveniently.