315results about How to "Avoid shaking phenomenon" patented technology

The invention discloses a compressor capable of being moved conveniently. The compressor capable of being moved conveniently comprises a compressor body. The bottom of the compressor body is fixedly connected with an arc-shaped plate. The outer side wall of the arc-shaped plate is movably connected with the upper surface of a damping plate through a telescopic rod. The telescopic rod is connected with a damping spring in a sleeved mode. The two ends of the damping spring are fixedly connected with the outer side wall of the arc-shaped plate and the upper surface of the damping plate correspondingly. The front ends and the rear ends of the two sides of the upper surface of the damping plate are both fixedly connected with damping sleeves, and pistons are connected into the corresponding damping sleeves in a sleeved mode. According to the compressor capable of being moved conveniently, by improving rolling wheels, when the compressor is pushed, limiting blocks are matched with limiting springs for use, deviation of the rolling wheels can be prevented, and thus the compressor can be moved stably. When the damping plate is vibrated, the pistons can be driven to move in the corresponding damping sleeves through supporting rods, and the telescopic rod can be squeezed; and at the moment, buffer springs and the damping spring are matched for use, and the severe shaking phenomenon of the compressor can be prevented.

The invention discloses special teaching auxiliary equipment for business administration, and relates to the technical field of teaching equipment. The special teaching auxiliary equipment comprises abox body. The bottom surface of the box body is fixedly connected with a base; and universal wheels are fixedly mounted at four corners of the bottom surface of the base. According to the special teaching auxiliary equipment for business administration, through cooperation of a driving motor, a bidirectional screw rod, a second threaded sliding block, a lifting plate, a sliding groove and a second connecting plate, lifting of the lifting plate can be effectively controlled, the lifting plate can be more stable during lifting, and the lifting plate is prevented from deviating during lifting, so that the effect of adjusting the height of a main teaching board is effectively realized; and through cooperative arrangement of a fixing frame, a rotating base, a limiting hole, a limiting rod, a fixing column, a universal ball, a sliding groove plate, a second fixing frame and a telescopic spring, adjustment of the left-right angle of the main teaching board can be effectively controlled, therotating base with the adjusted angle can be limited, and therefore, the stability of the main teaching board is guaranteed.

The invention relates to the technical field of unmanned aerial vehicles, in particular to a folding vehicle arm and a multi-rotor unmanned aerial vehicle. The vehicle arm comprises a main vehicle armbody, a first folding vehicle arm body, a second folding vehicle arm body and a folding component. The folding component comprises a shell, a button shaft, a gear disc and a compression spring, wherein the button shaft, the gear disc and the compression spring are sequentially arranged in the shell from top to bottom, the compression spring is arranged between the gear disc and the shell, the topof the button shaft extends upwards to the outer side of the shell, and the bottom of the button shaft is fixedly connected with the gear disc; and one end of the main vehicle arm body is fixedly connected to the inside of the shell, and one end of the first folding vehicle arm body and one end of the second folding vehicle arm body are rotationally connected to the inside of the shell and engaged with the gear disc through first transmission teeth arranged at the end of the first folding vehicle arm body and second transmission teeth arranged at the end of the second folding vehicle arm body. The provided folding vehicle arm is convenient to fold, work efficiency can be effectively improved in actual operation, the overall size of the multi-rotor unmanned aerial vehicle is reduced, and transportation and storage of the multi-rotor unmanned aerial vehicle are convenient.