4results about How to "Mechanically simple" patented technology

The invention discloses a multi-medium parallel issuing machine which comprises a medium box body, a medium base, a hook transmission assembly, a control base and a base, the medium box body is placed on the medium base, the hook transmission assembly and the medium base are both installed on the control base, the hook transmission assembly is located between the medium base and the control base, and the control base is installed on the base. The hook and the transmission wheel are installed on the transmission mechanism to form a hook transmission assembly. The control base motor and the control base transmission guide rail are installed on the control base. The base motor is controlled to convey the hook conveying assembly to the position of the corresponding medium box through the control base guide rail, the hook conveying assembly conducts hooking conveying operation on the medium in the corresponding medium box, and the purpose of releasing a single medium in any medium box is achieved. According to the technical scheme, the problem that each medium box corresponds to one hook traditionally is solved.

This invention discloses a heterogeneous multi-rotor layout with a single main rotor and partially tilted multiple slave rotors, relating to the field of unmanned aerial vehicle (UAV) design technology. It includes a large main rotor providing primary lift and n control rotors arranged around it, with some control rotors mounted horizontally and the rest tilted at a fixed angle. During steady-state flight, the anti-torsional torque of the main rotor is statically balanced by the horizontal component torque of the pull force from the tilted slave rotors. Attitude control of the UAV is achieved by differentially adjusting the rotational speeds of the control rotors, including pitch control, roll control, and yaw control. Pitch and roll control are achieved by differentially adjusting the rotational speeds of symmetrically positioned control rotors, while yaw control is achieved by differentially adjusting the rotational speeds between the horizontally mounted and tilted control rotor groups. This invention achieves a fusion of high aerodynamic efficiency and easy operation, effectively improving the UAV's endurance and flight performance.

The invention relates to the field of medical beds, and discloses a multifunctional spine traction bed which is characterized in that a supporting frame is arranged at the upper end of a bed body corresponding to the edge of the bed body, a balance plate protrudes out of the middle position of the supporting frame, supporting seesaws are arranged at the two ends of the middle position of the supporting frame, and a mattress is arranged at the upper ends of the supporting seesaws; a supporting frame is arranged on the side, corresponding to the supporting warping plate, of the lower end of the bed body, an ejector rod is arranged at the upper end of the supporting frame, a spine jacking device is arranged between the ejector rod and the supporting frame, a supporting plate is arranged at the end, corresponding to the feet, of the bed body, and two foot pedals are arranged in the supporting plate. A protection box is arranged on the side, corresponding to the supporting plate, of the lower end of the bed body, the lower end of the footstep pedal extends into the protection box, a self-adjusting device is arranged at the end, located in the protection box, of the footstep pedal, the devices can be connected through the hands, and the devices can be started through the feet; therefore, the patient can move on the sickbed, and body function loss is avoided.

The invention discloses a single main rotor-partially inclined multi-slave rotor heterogeneous multi-rotor layout, and relates to the technical field of unmanned aerial vehicle aircraft design, the single main rotor-partially inclined multi-slave rotor heterogeneous multi-rotor layout comprises a large-size main rotor providing main lift force and n control rotors arranged around the large-size main rotor, part of the control rotors are horizontally mounted, and the rest are obliquely mounted at a fixed angle; during steady-state flight, the reverse torsional moment of the main rotor is statically balanced by the horizontal component moment of the pulling force of the inclined slave rotor, attitude control is carried out on the unmanned aerial vehicle by carrying out differential adjustment on the rotating speed of the control rotor, and attitude control comprises pitching control, rolling control and yaw control. Wherein the pitching control and the rolling control are realized by differentially adjusting the rotating speed of the control rotors at symmetrical positions, and the yaw control is realized by differentially adjusting the rotating speed between the horizontally mounted control rotor group and the obliquely mounted control rotor group; according to the invention, the integration of high aerodynamic efficiency and simple control is realized, and the cruising ability and flight performance of the unmanned aerial vehicle are effectively improved.