A first component with a fixing groove is affixed to a second component, using a ball-head screw having a thread and a ball head, a slot nut for the thread fitting into the fixing groove of the first component, and a fixation part having a ball head seat and a planar fixation support surface for fixing the fixation part to the second component. The ball head seat receives the ball head, forming a ball joint. In a central position, the fixation support surface is parallel and offset to a longitudinal axis of the ball-head screw. The ball-head seat includes recessed portions receiving a screw portion of the ball-head screw. An inclination angle between the longitudinal axis of the ball-head screw in the central position, and the longitudinal axis of the ball-head screw in the position when received in the recessed portion, is at least 90?.

A quick release and assembly connecting member and a shooting device are provided. The quick release and assembly connecting member includes a connecting cover, a mounting seat, and a fixing mechanism. The connecting cover includes an inserting portion. The mounting seat includes a mounting and locking mechanism. The fixing mechanism is arranged on the connecting cover and/or the mounting seat, and configured for mounting and fixing the quick release and assembly connecting member with a device. The mounting and locking mechanism includes a clamping and locking sleeve and a locking member. The clamping and locking sleeve is configured to enclose a mounting space for mounting the inserting portion, and the locking member is capable of switching between a first position and a second position, so that when the inserting portion is mounted in the mounting space, the locking member is capable of locking or unlocking the inserting portion.

A multiple antenna feed assembly including an antenna feed support having a body made of an electrically insulating material and a method of forming the antenna feed assembly, are provided. The antenna feed support may have a slot adapted to receive a connector; and a gap formed in the body having a thickness to fit a printed circuit board (PCB). The multiple antenna feed assembly may include a first connector adapted to fit in the slot of the antenna feed support; and a second connector electrically isolated from the first connector. Also provided is an antenna feed support to provide structural support and electrical isolation for the components of a multiple antenna feed assembly as above.

A multiple antenna feed assembly including an antenna feed support having a body made of an electrically insulating material and a method of forming the antenna feed assembly. The antenna feed support may have a slot adapted to receive a connector; and a gap formed in the body having a thickness to fit a printed circuit board (PCB). The multiple antenna feed assembly may include a first connector adapted to fit in the slot of the antenna feed support; and a second connector electrically isolated from the first connector. Also provided is an antenna feed support to provide structural support and electrical isolation for the components of a multiple antenna feed assembly as above.

A wall mounting bracket for mounting an elongate mounting rail as a cantilever arm to a wall or other supporting surface is provided including a wall plate having mounting holes for mounting the bracket to a wall by means of male fasteners, and a socket for inserting the end portion of the mounting rail, including at least two flange profiles, which at their distal end have an embracing portion to interlock with the end portion of the mounting rail thereby inhibiting movement of an inserted end portion parallel to the wall plate. At least one of the embracing portions has a fixing hole for passing through a male fastener to fix the end portion of the mounting rail to inhibit retraction of the end portion from the socket. A supporting rim is provided to interlock with the outer or inner side of the end portion of the mounting rail.

An attachment device for attaching to a structural component of a building to couple a fitting to the structural component.

A coupler can connect one or more instruments to a robotic surgical arm. The coupler can include a base and an actuator. The base can be securable to the robotic surgical arm. The actuator can be operable to release or secure the stem to the base and the robotic surgical arm.