Abstract: A lock for securing a portable device is disclosed. The lock can be inserted into a cavity. The cavity has a first sidewall and a second sidewall both of which extend away from an opening into the cavity with a gradually increasing distance between the two sidewalls for a section of the two sidewalls. The lock for securing a portable device comprises a lock body; a first engaging member projecting from the lock body and having an outside part outside the lock body, a cross-sectional area of the outside part of the first engaging member being substantially the same or become larger from a front end towards a rear end of the outside part of the first engaging member; and a second engaging member, connected to the lock body and configured to move along a side of or across the first engaging member to insert into the cavity for a locking status and to withdraw from the cavity for an unlocking status.

Abstract: A combination lock for electronic devices may include a main body, a digit lock core, a key lock core, a control unit, a driving block, a switching unit, and two engaging units. The combination lock can be locked/unlocked through the digit lock core and the key lock core, and also when the combination lock is locked on the electronic device, the main body can be axially rotated to enable a digit wheel of the digit lock core to be faced to the designated direction.

Abstract: A number lock has a main rod, a casing, a push knob and two buckles. The main rod is jacketed with a plurality of number rollers, and each number roller is capable of controlling movement of the main rod. One end of the main rod has an operating block and an ejector. The casing has two corresponding pieces enclosing the main rod and exposes a portion of each number roller. The casing further has a displacement space for accepting the operating block and a semispherical space for accepting the ejector. The casing has an elastic piece pushing against each number roller for positioning. One end of the casing is provided with a round rod, and the round rod has a ball socket connected to a cable. The push knob is partially disposed in the displacement space of the casing and connected to the operating block.

Abstract: A lock for electronic devices may include a main body, a lock barrel, a connecting member, a first engaging member, and a second engaging member. The main body has a shell which comprises two pieces to fit together, and at least an inner surface of the shell has a first housing and a second housing which are communicated through a connecting channel. Two ends of the shell respectively have a first opening and a second opening axially penetrating through the shell, and the second housing comprises a first securing portion formed therein. The main body is connected to a lock cable which is configured to be wound around an immovable object to achieve the burglarproof effect of the lock.

Abstract: A lock for electronic devices may include a main body, a lock barrel, a connecting member, a first engaging member, and a second engaging member. The main body has a shell which comprises two pieces to fit together, and at least an inner surface of the shell has a first housing and a second housing which are communicated through a connecting channel. Two ends of the shell respectively have a first opening and a second opening axially penetrating through the shell, and the second housing comprises a first securing portion formed therein. The main body is connected to a lock cable which is configured to be wound around an immovable object to achieve the burglarproof effect of the lock.

Abstract: A lock for electronic devices may include a main body, a lock barrel, a pushing member, and two engaging pieces. The main body has a cover and a cylinder which are connected together at a front portion and a rear portion of the main body. The cover comprises a through hole at a central portion thereof, and two pivot bases are respectively formed at two lateral sides of the through hole in the cover. The lock barrel comprising a lock pin is installed in the cylinder of the main body, and the lock pin is configured to protrude from a rear end of the cylinder when the lock of present invention is at an unlocked position. The pushing member is installed in a front portion of the cylinder, and a rear end of the pushing member is coupled with the lock pin so as to have synchronous movement.

Abstract: A combination lock for electronic devices may include a shell, a pushing button, two engaging arms, and a lock cable. The main body has a plurality digit wheels disposed at an end thereof, and the digit wheels are configured to control whether the main body is able to move in axial direction. Moreover, the main body includes a slot-head rod at the other end thereof, and a lock block is installed between the slot-head rod and the digit wheels. Also, the lock block comprises a first inclined portion faced to the slot-head rod, and a spring disposed on the main body is coupled between the lock block and the digit wheels. Each of the engaging arms has a connecting portion and a hook portion, and a locating portion is formed therebetween. An elastic member is disposed on the locating portions of the two engaging arms.

Abstract: A USB lock for an electronic device may comprise an inner casing, an outer casing, a USB connector and a driving unit. The inner casing has a front opening to secure the USB connector thereon. A rear portion of the inner casing has a tube body, and a first through hole penetrating through the tube body is communicated with the front opening and configured to receive the driving unit with a lock rod and a key lock. The USB lock of the present invention is configured to engage with a USB port of a 3C product to achieve the anti-theft effect, which is easily to assembly, simplifies the structure, lowers manufacturing cost and prevents the 3C product from getting infected with a virus through an unsafe USB.

Abstract: A USB lock for an electronic device may comprise an inner casing, an outer casing, a USB connector and a driving unit. The inner casing has a front opening to secure the USB connector thereon. A rear portion of the inner casing has a tube body, and a first through hole penetrating through the tube body is communicated with the front opening and configured to receive the driving unit with a lock rod and a key lock. The USB lock of the present invention is configured to engage with a USB port of a 3C product to achieve the anti-theft effect, which is easily to assembly, simplifies the structure, lowers manufacturing cost and prevents the 3C product from getting infected with a virus through an unsafe USB.

Abstract: A USB combination lock for an electronic device may include a lock rod, a shell body, a USB connector, a push button, and a lock piece. The USB connector can be directly inserted into the USB port of the electronic the electronic device, and the blocking portion of the USB connector can be engaged with the USB port. When the push button is in a released position, the lock piece will block a bottom portion of the hooking member of the USB connector, and the lock piece will not be pressed inwardly by the blocking portion. Thus, by shifting the numeral wheels, the connecting piece can be turned into the lock position, leading to the combination lock of present invention achieving the burglarproof effect.

Abstract: An anti-theft mechanism for electronic devices includes an upper protecting frame and a lower protecting frame. The upper and lower protecting frames of the embodiment provide protection for the 3C products, and the first and second assembling space of the upper and lower protecting frames provide adjustable dimensions to be suitable for different sizes of 3C products. The upper and lower protecting frames can further be provided with a locking mechanism to limit the movement of the positioning member after the upper and lower protecting frames being attached onto the 3C products, which prevents the upper and lower protecting frames from being removed easily. Furthermore, with the steel wire of the locking mechanism can be attached to a secured object to secure the upper and lower protecting frames.

Abstract: An anti-theft mechanism for electronic devices includes an upper protecting frame and a lower protecting frame. The upper and lower protecting frames of the embodiment provide protection for the 3C products, and the first and second assembling space of the upper and lower protecting frames provide adjustable dimensions to be suitable for different sizes of 3C products. The upper and lower protecting frames can further be provided with a locking mechanism to limit the movement of the positioning member after the upper and lower protecting frames being attached onto the 3C products, which prevents the upper and lower protecting frames from being removed easily. Furthermore, with the steel wire of the locking mechanism can be attached to a secured object to secure the upper and lower protecting frames.

Abstract: A rotatable lock for a portable electronic device includes a first casing, a second casing, two interlocking members, an I-shaped engaging member, a driving member, an elastic member and a lock core. The lock core is a depressible tubular lock having a limiting slot adjacent to an end and a key hole on another end. The key hole is an axial slot and has a plurality of protrusions and a positioning slot disposed in an inner wall, and a pivoted sliding rod. The key is a hollow column and has a positioning pin and a plurality of grooves. To unlock the lock, a positioning pin of the key needs to be aligned with the positioning slot of the key hole, and then the groove of the key engages with the protrusion of the key hole of the lock core such that the key is able to be rotated.

Abstract: A tablet protector includes a main frame, a matching and a lock, wherein the main frame and matching frame are engaged with each other to protect the periphery of the tablet. The lock is provided to lock and further restrict the position of the main frame and matching frame as to the tablet. Also, the steel cable extends from the lock to lock the tablet at any predetermined location and prevents the tablet (along with the main frame and matching frame) from being stolen and provides a better anti-theft result.

Abstract: A rotatable lock for a portable electronic device includes a first casing, a second casing, two interlocking members, an I-shaped engaging member, a driving member, an elastic member and a lock core. The lock core is a depressible tubular lock having a limiting slot adjacent to an end and a key hole on another end. The key hole is an axial slot and has a plurality of protrusions and a positioning slot disposed in an inner wall, and a pivoted sliding rod. The key is a hollow column and has a positioning pin and a plurality of grooves. To unlock the lock, a positioning pin of the key needs to be aligned with the positioning slot of the key hole, and then the groove of the key engages with the protrusion of the key hole of the lock core such that the key is able to be rotated.