97results about How to "Easy to rotate and move" patented technology

The invention provides an overturning tool for an aircraft. The overturning tool comprises a supporting base, an annular first supporting ring sleeving the aircraft, and an annular second supporting ring used sleeving the aircraft. The first supporting ring and the second supporting ring are coaxially arranged at an interval and can be rotationally placed on the supporting base. In the state thatthe first supporting ring and the second supporting ring sleeving the aircraft, the first supporting ring and the aircraft are spaced, the first supporting ring and the aircraft are detachably connected through a first connecting piece, the second supporting ring and the aircraft are spaced, the second supporting ring and the aircraft are detachably connected through a second connecting piece, andthe aircraft is turned over by rotating the first supporting ring and the second supporting ring on the supporting base. When the overturning tool is used for overturning the aircraft, the overturning operation process is simple, safe and reliable.

The invention provides a municipal umbrella-like temporary guarding device for a sewer inspection shaft opening, and belongs to the field of municipal administration. The municipal umbrella-like temporary guarding device includes a rod body. An upper end head of the rod body is fixedly connected with a connecting circular block horizontally. A plurality of first guarding rods are connected with the circular side wall of the connecting circular block though a hinge in a surrounding mode evenly and fixedly. The rod body is provided with a cylindrical sliding sleeve in a sleeved mode. A pluralityof second guarding rods are connected with the circular side wall of the cylindrical sliding sleeve though a hinge in a surrounding mode evenly and fixedly. A movable end head of each second guardingrod is connected with the corresponding first guarding rod through hinges correspondingly. According to the municipal umbrella-like temporary guarding device, the rod body is used for being vertically inserted in the shaft opening, then the cylindrical sliding sleeve slides relative to the rod body, the distance between the cylindrical sliding sleeve and the connecting circular block at the upperend of the rod body is shortened, so that the first guarding rods and the second guarding rods are opened up outwards through hinge butt points, the second guarding rods are horizontally supported atthe edge of the upper side of the shaft opening, debris and pedestrians are prevented from falling into a sewer inspection shaft, and a storage battery box is used for storing a storage battery.

There is provided an optical mini-mouse including a mouse case and a navigation module. The mouse case includes a valley and a flat region arranged along a length direction and the valley extends along a width direction. When the mouse case is rotated about the valley, the navigation module is configured to detect a rotation.

There is provided an optical mini-mouse including a mouse case and a navigation module. The mouse case includes a valley and a flat region arranged along a length direction and the valley extends along a width direction. When the mouse case is rotated about the valley, the navigation module is configured to detect a rotation.

The invention discloses a sheet printing device. The sheet printing device includes a fixed baseplate, through grooves and gears; fixing pipes are installed at the upper portion of the fixed baseplateand internally provided with damping springs, fixing blocks are installed at the upper portions of the damping springs, and a worktable is arranged at the upper portions of the fixing blocks; a roller is installed in the worktable, connecting rods are fixed to the left and right sides of the roller respectively, bearings are installed on the left and right sides of each connecting rod respectively, and a second groove is formed above the connecting rods; first grooves are formed in the left and right sides of the second groove respectively, a manual retractable rod is arranged in each first groove, and a printing main body is installed on the tops of the manual retractable rods. Since the sheet printing device is provided with the manual retractable rods, the height of the printing main body is adjusted conveniently through retractable structures of the manual retractable rods, and therefore printing is carried out on sheets different in thickness by the printing main body conveniently.