Omnidirectional telescopic frame type projection device for class recording
An omni-directional telescopic frame type projection device for class recording is characterized in that four groups of universal wheels with brakes are arranged at the bottom of a cuboid main structure frame, and a longitudinal telescopic rod I, a longitudinal telescopic rod II, a longitudinal tele...
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| creator | LI PENG WU ZHENQIANG WANG TAO HU XIMING WANG LIANG LIAO XUENING |
| description | An omni-directional telescopic frame type projection device for class recording is characterized in that four groups of universal wheels with brakes are arranged at the bottom of a cuboid main structure frame, and a longitudinal telescopic rod I, a longitudinal telescopic rod II, a longitudinal telescopic rod III and a longitudinal telescopic rod IV are respectively arranged on the left side and the right side between a front telescopic frame and a rear telescopic frame of the main structure frame; a vertical electric push rod is arranged between the second longitudinal telescopic rod and the third longitudinal telescopic rod, and a connecting rod is arranged between the first longitudinal telescopic rod and the second longitudinal telescopic rod. The front telescopic frame is formed by arranging a first front transverse telescopic rod and a second front transverse telescopic rod between two front vertical telescopic rods, clamping grooves with opposite openings are formed in movable rods of the two front ver |
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| language | chi ; eng |
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| subjects | BLASTING ENGINEERING ELEMENTS AND UNITS FRAMES, CASINGS, OR BEDS OF ENGINES OR OTHER MACHINES ORAPPARATUS NOT SPECIFIC TO AN ENGINE, MACHINE, OR APPARATUSPROVIDED FOR ELSEWHERE GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVEFUNCTIONING OF MACHINES OR INSTALLATIONS HEATING LIGHTING MECHANICAL ENGINEERING STANDS OR SUPPORTS THERMAL INSULATION IN GENERAL WEAPONS |
| title | Omnidirectional telescopic frame type projection device for class recording |
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