Abstract: An anti-theft lock for a portable electronic device has a mounting shaft, two buckling units, a split-abutting unit, and a controlling unit. The two buckling units are moveably mounted around the mounting shaft. The split-abutting unit is moveable and has an engaging end and a split-abutting end. The split-abutting end selectively abuts the two buckling units via the movement of the split-abutting unit. The controlling unit has an annular curved surface. The annular curved surface slidably abuts the engaging end of the split-abutting unit. During the rotation of the controlling unit, the annular curved surface is capable of pushing the split-abutting unit to make the split-abutting end abut the two buckling units with inclined surfaces to move the two buckling units away from each other. The larger a distance the split-abutting unit moves, the larger a distance the two buckling units move away from each other.

Abstract: A pressure detection device for a blowgun has a housing and a pressure-sensing unit. The pressure-sensing unit has a pressure sensor integrated circuit (IC) aligned with a pressure-sensing opening of the housing to detect air pressure inside the blowgun and outputting a voltage signal corresponding to the detected air pressure, a micro-controller unit (MCU) converting the voltage signal into a detected datum, and performing calibration and calculation with the detected datum to generate a blow-off pressure value displayed on a display screen, and a power-saving control circuit activating power supply to the pressure sensor IC and the MCU and shutting down power supply thereto when users are done with blowgun shooting.

Abstract: A locking device includes a clamp for clamping on one side of a mobile electronic device, a cord member connected to the clamp, and a lock module including a housing, a locating block connected to the housing and movably sleeved onto the other end of the cord member and connectable to an opposite side of the mobile electronic device, a tightening up screw mounted in the locating block, a rotary knob for rotating the tightening up screw to lock the cord member to the locating block, and a rotating disc assembly for locking the rotary knob.

Abstract: A locking apparatus for a portable electron device has a main frame, a casing, an inserting element and a lock. The main frame has two clamping segments, a mounting segment and a limiting hole. The casing is mounted around the mounting segment and has a mounting opening and at least one operating opening. The inserting element is mounted movably in the casing and is screwed with and mounted through the limiting hole. The lock mounted securely on the casing and has a body, a controlling element and an extending element. The controlling element is mounted movably in the body, aligns with and selectively abuts the inserting element to limiting the movement of the inserting element. The extending element is securely connected to the body and has a mounting end.

Abstract: A locking assembly for a portable electron device has a main frame, an inserting element and a lock. The main frame has a first clamping segment, a second clamping segment, a mounting segment and a limiting segment. The mounting segment is formed on and protrudes from the first clamping segment. The limiting hole is formed through the mounting segment and the first clamping segment. The inserting element is mounted through the limiting hole of the main frame. The lock is mounted around the mounting segment and the inserting element and has a body, a controlling element and an extending element. The body is mounted around the mounting segment. The controlling element is movably connected to the body. The extending element is securely connected to the body opposite to the controlling element.

Abstract: A universal and lockable tablet PC protective case serves to accommodate an external tablet PC and has a housing, four support pads and a lock assembly. The housing has an upper frame and a lower cover pivotally mounted on the upper frame. The support pads are detachably mounted on four corners of the lower cover. A thickness of each support pad plus a thickness of the tablet PC matches a height of a chamber inside the housing. Each support pad has a curved surface formed in a top of the support pad. The lock assembly locks the upper frame and the lower cover. The support pads are replaceable to provide different types of curved surfaces to accommodate tablet PCs having different shapes. Additionally, as the upper frame is securely locked on the lower cover, it is unnecessary to replace the protective case for insecure locking therebetween.

Abstract: A lock for a USB connector has a shell with an end opening, multiple lock assemblies mounted rotatably through the shell and an actuator mounted pivotally in the shell. Each lock assembly has a locking notch. The actuator has multiple locking protrusions selectively engaging the locking notches. The USB connector is inserted through the end opening into the shell and is selectively locked by a mounting segment on the actuator.

Abstract: A lock has a housing, a movable cylinder, a stationary cylinder, a limiting slide assembly and a latch bar. The housing has a cavity. The movable cylinder is mounted rotatably in the cavity and has a curved recess. The stationary cylinder is mounted securely in the cavity and adjacent to the movable cylinder and has a rail slot. The limiting slide assembly is mounted in the rail slot and has a limiting slide, a ball and a spring. The limiting slide is mounted slidably in the rail slot and has a ball recess for receiving the ball. The latch bar extends through the movable and stationary cylinders and has an annular groove for receiving the ball. The limiting slide assembly is compact and has a simple structure to improve the production rate and the lower the cost of the lock.

Abstract: A combination padlock with a name card has a housing, a card clamp, multiple dial cores, a shackle, a locking shaft and a key core. The housing has a card surface. The card clamp is mounted detachably on the card surface and holds a name card to indicate who owns the padlock. The dial cores are mounted in the housing, have a combination and provide a combination locking capability. The shackle is U-shaped and has a mounting end and a locking end. The mounting end is mounted through the dial cores. The locking end detaches from the housing. The locking shaft is mounted in the housing and selectively meshes the shackle with the dial cores. The key core is mounted in the housing, locks and releases the shackle by a key and allows a person to unlock the padlock when the combination is forgotten.

Abstract: A dual-mode padlock can be unlatched by dialing a combination assembly or an associated key. The dual-mode padlock has a latching element movably mounted inside to engage with or disengage from a latch. When the dual-mode padlock is locked, the user can directly push the latch into a mounting groove to engage with the latching element and make the dual-mode padlock locked, without use of the associated key or dialing of the combination assembly. This makes it timesaving and convenient to lock the dual-mode padlock.

Abstract: A combination lock has a plurality buttons movably received in the casing and a knob rotatably received in the casing. When specific buttons are pressed downward, rotating the knob from a first position to a second position, the balls in the downward movement buttons are limited in the limiting holes in the buttons by the abutting faces of a frame. Rotating the knob to a third position allows pins of the pressed buttons to be secured and limited in the longitudinal paths. Pressing the returning rod is able to release the arms which are received in the arm stays in the pressed arms. Rotating only the core relative to the combination of the rotator and the body is able to drive the second abutting block to move so as to return all the pins back to their original positions to be ready for next use.

Abstract: A lock has a shell, an internal sleeve and a locking rod assembly. The shell has multiple protrusions formed inside the shell. The internal sleeve is mounted rotatably in the shell. The locking rod assembly is mounted in the internal sleeve and has multiple locking rods. Each locking rod has a cut selectively aligning with the protrusions in the shell. When the cuts of the locking rods align with the protrusions in the shell, the internal sleeve can be rotated relative to the shell to change the lock or unlock status of the lock.

Abstract: A lock assembly has a casing, a securing axle and a wheel. The securing axle is mounted rotatably in the casing and has a threaded end extending out of the casing. The wheel is mounted rotatably in the casing and selectively engages with the securing axle to rotate the securing axle. By rotating the wheel and the securing axle simultaneously, the threaded end of the securing axle can be screwed into an article. When the wheel disengages from the securing axle, the wheel cannot rotate the securing axle to keep the securing axle in the article. Then the article is in a position in cooperation with a cable.

Abstract: A combination padlock has a housing, a dial core, a connector, a key core and a shackle. The housing has a cavity. The dial core is mounted in the cavity and has multiple dials and a shaft extending through the dials and having a bottom end. The connector is mounted in the cavity and has a cylinder and a lateral arm. The cylinder has a through hole, an open slot and a slid pin extending through the open slot. The lateral arm abuts the bottom end of the shaft. The key core is mounted rotatably in the through hole and has a rail slot holding the slide pin. The combination padlock can be unlocked by either operating the dial core or inserting a corresponding key into the key core so using the combination padlock is convenient.

Abstract: A cable lock has a hollow shell, a lock assembly, a cable, a driving wheel and a locking rod. The lock assembly is mounted in the shell and has a lock cylinder and an actuating rod that is allowed to move axially when the lock cylinder is unlocked. The cable is attached to the shell and is fastened to a specific place. The driving wheel is mounted in the shell and has a non-circular central hole. The locking rod has a non-circular head and a threaded rod extends out of the shell. The locking rod is pushed to engage the head and the central hole in the driving wheel. Then rotating the driving wheel screws the threaded rod into an electrical appliance. Therefore, the electrical appliance is securely attached to any specific place with the cable lock.

Abstract: A lock has a housing, a movable cylinder, a stationary cylinder, a limiting slide assembly and a latch bar. The housing has a cavity. The movable cylinder is mounted rotatably in the cavity and has a curved recess. The stationary cylinder is mounted securely in the cavity and adjacent to the movable cylinder and has a rail slot. The limiting slide assembly is mounted in the rail slot and has limiting slide, a ball and a spring. The limiting slide is mounted slidably in the rail slot and has a ball recess for receiving the ball. The latch bar extends through the movable and stationary cylinders and has an annular groove for receiving the ball. The limiting slide assembly is compact and has a simple structure to improve the production rate and the lower the cost of the lock.

Abstract: The connector lock for a USB port has a tubular body, a rotatably limit, a lock activator, a plug and a faceplate. Aligning a rotating diametric recess in the rotatable limit with a stationary diametric recess formed in the proximal end of the tubular body allows the tubular lock activator to slide on the tubular body and unlock the connector lock from a USB port. Then the connector lock can be removed from the USB port so the USB port can be used.

Abstract: The connector lock for a USB port has a tubular body, a rotatably limit, a lock activator, a plug and a faceplate. Aligning a rotating diametric recess in the rotatable limit with a stationary diametric recess formed in the proximal end of the tubular body allows the tubular lock activator to slide on the tubular body and unlock the connector lock from a USB port. Then the connector lock can be removed from the USB port so the USB port can be used.

Abstract: A lock includes a control knob with a keyway and a receiving space defined in a distal end face of the control knob to correspond to the receiving hole of the sliding seat. The sliding block is able to selectively be received at a joint of the control knob and the sliding block to allow movement of the control knob to drive the latch to move accordingly.