A desktop dual-screen multi-directional rotational folding mechanism is provided. The desktop dual-screen multi-directional rotational folding mechanism includes a bottom support assembly, a side extension assembly arranged on the bottom support assembly, and rotating assemblies arranged on the side extension assembly. A reinforcing plate is also fixed to the fixed beam, and the reinforcing plate is provided with an inner skeleton. The side extension assembly includes a buckle plate, a pressure-bearing housing fixed to one end, away from the outer skeleton, of the buckle plate, and a positioning plate fixed to one end, of the pressure-bearing housing. According to the desktop dual-screen multi-directional rotational folding mechanism, the position of a display screen is adjustable. Therefore, the desktop dual-screen multi-directional rotational folding mechanism is adapted to the usage requirements in more scenarios, and may adapt different sizes of display screens, so that the scope of application is increased.

A gimbal device includes a lifting module, a horizontal rotating module, a rotating shaft, a pitch module, and a swing module, the lifting module includes a driving piece, a transmission worm, and a gear rack, the horizontal rotating module includes a driving piece, a first synchronous pulley, and a bearing assembly, the first synchronous pulley drives the bearing assembly to rotate, the rotating shaft is connected with the bearing assembly, the pitch module includes a driving piece, a first transmission gear, and a fixed gear, the third driving piece rotates around the fixed gear, the swing module includes a driving piece, a second transmission gear, a swing gear, and a swing housing, the swing housing rotates around the swing gear. The gimbal device is capable of performing four-axis motion, and modules of the gimbal device are disposed compactly, the four-axis motion is realized in a small space.

A modular mount for mounting a video cameras and other equipment to a wall, including (1) a base assembly, including a wall bracket used to attach the modular mount to a wall, and a primary tube, attached to the wall bracket, and (2) and a head assembly, including a secondary tube that fastens to the primary tube, and a head, attached to the secondary tube, including a pan attached to the secondary tube, enabling a video camera and any other equipment to mount to the underside of the pan. and a lid that covers the pan.

A display angle adjustment device includes a base, a fixed shaft fixed to the base along an X-axis direction, a first driver provided on a first side of the base and including a first movable rod parallel with the fixed shaft, a second driver provided on a second side of the base such that the second driver is symmetrical to the first driver. The second driver includes a second movable rod parallel with the fixed shaft. A connection block to which a front end of the fixed shaft, a front end of the first movable rod, and a front end of the second movable rod are pivot-connected respectively. The device includes a holder connecting the connection block and a display, wherein the first movable rod and the second movable rod are configured to move along an X-axis direction to adjust an angle of the display.