The invention relates to an improved locking device for the closure of doors on cabinets, of boxes or compartments, which offers high resistance to unauthorized attack and, in particular, can take up high torques. For this purpose, use is made of a coupling arrangement having a manually or electronically movable actuating member, a driver (40), which interacts with the actuating member, and a blocking member (50). The blocking member (50) has the form of a cylinder, the cylinder axis of which runs parallel to the rotor axis (19). The blocking member (50) in its blocking position engages in a depression (17) on the outer side of the rotor (10) or in a depression (22) on the inner side of the wall (21) of the stator (20) and is held in this blocking position by spring force.

The present invention discloses a double-layer foldable lifting desk with a lever-type unlocking structure and relates to the technical field of foldable lifting desks. The double-layer foldable lifting desk with the lever type unlocking structure includes a desktop board, wherein a lower side of the desktop board is connected to an X-shaped lifting frame, a lower end of which is connected to a bottom frame; a limiting shaft is arranged at one end of an upper side of the X-shaped lifting frame; one side of the bottom of the desktop board is connected through a bolt to a guide rail, which is slidingly connected to two ends of the limiting shaft; and an unlocking mechanism corresponding to the limiting shaft is arranged on a lower side of one end of the desktop board. The present invention has the following beneficial effects: the unlocking structure is arranged on the lower side of the desktop board so that the use space of the desktop side is not occupied; a lever principle is used to make an unlocking lever rotate, and the reasonable and simple structure is not liable to get stuck, thereby avoiding the inconvenience caused by the unlocking structure of the traditional lifting desk that occupies the area of the desktop board.

The present invention discloses a double-layer foldable lifting desk with a lever-type unlocking structure and relates to the technical field of foldable lifting desks. The double-layer foldable lifting desk with the lever type unlocking structure includes a desktop board, wherein a lower side of the desktop board is connected to an X-shaped lifting frame, a lower end of which is connected to a bottom frame; a limiting shaft is arranged at one end of an upper side of the X-shaped lifting frame; one side of the bottom of the desktop board is connected through a bolt to a guide rail, which is slidingly connected to two ends of the limiting shaft; and an unlocking mechanism corresponding to the limiting shaft is arranged on a lower side of one end of the desktop board. The present invention has the following beneficial effects: the unlocking structure is arranged on the lower side of the desktop board so that the use space of the desktop side is not occupied; a lever principle is used to make an unlocking lever rotate, and the reasonable and simple structure is not liable to get stuck, thereby avoiding the inconvenience caused by the unlocking structure of the traditional lifting desk that occupies the area of the desktop board.

An electronic lock includes a control circuit module and an electromagnetic mechanism. The electromagnetic mechanism is electrically connected to the control circuit module, and the electromagnetic mechanism includes a driving member and a magnet. The driving member is configured to be driven by the control circuit module to be located at one of a first position and a second position. When the driving member is not driven by the control circuit module, the driving member is configured to be held at one of the first position and the second position by the magnet.

A door lock system includes a shaft and a cam. The cam is supported on the shaft for rotation with the shaft, and for movement along the shaft throughout a range of door lock release locations. A selector engages the cam to move the cam along the shaft upon rotation of the selector. An actuator lock has a closed condition blocking rotation of the shaft, and has an open condition permitting rotation of the shaft. The actuator lock prevents rotation of the cam at any of the door lock release locations when the actuator lock is in the closed condition.

A door lock system includes a shaft and a cam. The cam is supported on the shaft for rotation with the shaft, and for movement along the shaft throughout a range of door lock release locations. A selector engages the cam to move the cam along the shaft upon rotation of the selector. An actuator lock has a closed condition blocking rotation of the shaft, and has an open condition permitting rotation of the shaft. The actuator lock prevents rotation of the cam at any of the door lock release locations when the actuator lock is in the closed condition.

A clutch assembly of an electronic cabinet lock includes a cam, a camshaft, a gear disc, a sleeve, a snap ring, and a steel ball. The cam includes a sleeve ring at its inner end and a swing arm at its outer end. The camshaft is sleeved within the sleeve ring by clearance fit, and the sleeve ring is sleeved within the sleeve by clearance fit. The gear disc is sleeved on the outer wall of the sleeve. The steel ball is mounted in a through groove of the side wall of the cam. The steel ball is located between the sleeve and the cam and is tangent to the camshaft. The camshaft is provided with a groove, and the groove allows the steel ball to fall in. The snap ring is engaged in an annular groove of the lower end of the camshaft for restricting the sleeve.

A clutch assembly of an electronic cabinet lock includes a cam, a camshaft, a gear disc, a sleeve, a snap ring, and a steel ball. The cam includes a sleeve ring at its inner end and a swing arm at its outer end. The camshaft is sleeved within the sleeve ring by clearance fit, and the sleeve ring is sleeved within the sleeve by clearance fit. The gear disc is sleeved on the outer wall of the sleeve. The steel ball is mounted in a through groove of the side wall of the cam. The steel ball is located between the sleeve and the cam and is tangent to the camshaft. The camshaft is provided with a groove, and the groove allows the steel ball to fall in. The snap ring is engaged in an annular groove of the lower end of the camshaft for restricting the sleeve.

A clutch assembly of an electronic cabinet lock includes a cam, a camshaft, a gear disc, a sleeve, a snap ring, and a steel ball. The cam includes a sleeve ring at its inner end and a swing arm at its outer end. The camshaft is sleeved within the sleeve ring by clearance fit, and the sleeve ring is sleeved within the sleeve by clearance fit. The gear disc is sleeved on the outer wall of the sleeve. The steel ball is mounted in a through groove of the side wall of the cam. The steel ball is located between the sleeve and the cam and is tangent to the camshaft. The camshaft is provided with a groove, and the groove allows the steel ball to fall in. The snap ring is engaged in an annular groove of the lower end of the camshaft for restricting the sleeve.

A clutch assembly of an electronic cabinet lock includes a cam, a camshaft, a gear disc, a sleeve, a snap ring, and a steel ball. The cam includes a sleeve ring at its inner end and a swing arm at its outer end. The camshaft is sleeved within the sleeve ring by clearance fit, and the sleeve ring is sleeved within the sleeve by clearance fit. The gear disc is sleeved on the outer wall of the sleeve. The steel ball is mounted in a through groove of the side wall of the cam. The steel ball is located between the sleeve and the cam and is tangent to the camshaft. The camshaft is provided with a groove, and the groove allows the steel ball to fall in. The snap ring is engaged in an annular groove of the lower end of the camshaft for restricting the sleeve.