The invention discloses an automatic retracting and retracting device for a traffic cone, which includes a base body and a fixed plate. The base body is provided with a first movable cavity, the first movable cavity is provided with an intermittent pushing mechanism, and the first movable cavity is above the first movable cavity. A rotation cavity is provided, and a reciprocating rotation mechanism is provided in the rotation cavity. A second movable cavity with a rightward opening is provided above the rotation cavity. A retractable mechanism is provided in the second movable cavity. The rotation cavity is left. A first rectangular slot is provided on the side, a second rectangular slot is provided below the first rectangular slot, a transmission mechanism is provided in the second rectangular slot, a lower end wall of the first rectangular slot and an upper end of the second rectangular slot A first rotating shaft is rotatably installed between the walls, an upper end of the first rotating shaft extends into the first rectangular groove and a first bevel gear is fixedly installed, and a lower end of the first rotating shaft extends into the second rectangular groove. A middle bevel gear is fixedly installed in the middle.

An air-outlet adjusting assembly for a motor vehicle includes a drive unit configured to be driven by an electric drive and configured to act on at least one pivotable valve flap and at least one pivotable guide slat. The drive unit includes a rotatably arranged sliding-block carrier having a sliding block arranged eccentrically thereon, wherein, in a first rotary motion segment of the sliding-block carrier, the sliding block is configured to engage in a valve-flap slotted link connected for conjoint rotation to the at least one valve flap and, in a second rotary motion segment of the sliding-block carrier, the sliding block is configured to engage in a guide-slat slotted link connected for conjoint rotation to the at least one guide slat.

An air-outlet adjusting assembly for a motor vehicle includes a drive unit configured to be driven by an electric drive and configured to act on at least one pivotable valve flap and at least one pivotable guide slat. The drive unit includes a rotatably arranged sliding-block carrier having a sliding block arranged eccentrically thereon, wherein, in a first rotary motion segment of the sliding-block carrier, the sliding block is configured to engage in a valve-flap slotted link connected for conjoint rotation to the at least one valve flap and, in a second rotary motion segment of the sliding-block carrier, the sliding block is configured to engage in a guide-slat slotted link connected for conjoint rotation to the at least one guide slat.

A mechanical lock for a vehicle assembly such as an aircraft landing gear assembly. The lock is either pivotally mounted and substantially mass balanced, or part of an aircraft landing gear assembly and arranged to be mechanically operated from the ground by a mechanical actuation device.

A mechanical lock for a vehicle assembly such as an aircraft landing gear assembly. The lock is either pivotally mounted and substantially mass balanced, or part of an aircraft landing gear assembly and arranged to be mechanically operated from the ground by a mechanical actuation device.

A mechanical lock (10) for a vehicle assembly such as an aircraft landing gear assembly. The lock is either pivotally mounted and substantially mass balanced, or part of an aircraft landing gear assembly (30) and arranged to be mechanically operated from the ground by a mechanical actuation device.

A mechanical lock (10) for a vehicle assembly such as an aircraft landing gear assembly. The lock is either pivotally mounted and substantially mass balanced, or part of an aircraft landing gear assembly (30) and arranged to be mechanically operated from the ground by a mechanical actuation device.

A tool, consisting of an enclosure and a rotatable knob retained by, and protruding from, the enclosure. The tool has a tube having a proximal end that is retained by the enclosure, and the tube has an axis of symmetry. A Geneva drive is retained within the enclosure, the Geneva drive consisting of a drive wheel fixedly attached to the rotatable knob and a driven wheel fixedly attached to the proximal end of the tube, so that an axis of rotation of the driven wheel coincides with the axis of symmetry of the tube. Thus, a continuous rotation of the rotatable knob causes the tube to rotate about the axis of symmetry in discrete angular steps.

A tool, consisting of an enclosure and a rotatable knob retained by, and protruding from, the enclosure. The tool has a tube having a proximal end that is retained by the enclosure, and the tube has an axis of symmetry. A Geneva drive is retained within the enclosure, the Geneva drive consisting of a drive wheel fixedly attached to the rotatable knob and a driven wheel fixedly attached to the proximal end of the tube, so that an axis of rotation of the driven wheel coincides with the axis of symmetry of the tube. Thus, a continuous rotation of the rotatable knob causes the tube to rotate about the axis of symmetry in discrete angular steps.

Detailed are valve assemblies principally for use as part of in-floor cleaning systems for swimming pools. The assemblies may use mechanisms for converting continuous rotation into discontinuous rotation, changing the timing of water distribution to different outlet of the assemblies. One such mechanism includes both an impeller, whose blades are rotated continuously by impingement of pressurized water, and a Geneva drive, whose driven wheel is rotated discontinuously by one or more associated drive wheels.