6results about How to "Small quality" patented technology

This utility model relates to the field of shape memory alloy actuator technology, and in particular to an ultra-thin actuator for driving in micro-spaces using shape memory alloy drive wires, with an ultra-thin actuator size ≤2mm. It is suitable for miniature locks or valves, and lightweight flow valves. It includes panel A, panel B, an actuator assembly, and a shape memory alloy drive wire assembly. Panels A and B are provided with fixing latch holes. The fixing latch hole of panel A is connected to the fixing latch hole of panel B via a connecting copper pin, forming a hollow sandwich structure. The actuator assembly is located within the hollow cavity of the hollow sandwich structure and is connected to the shape memory alloy drive wire assembly. The shape memory alloy drive wire assembly is electrically connected to a power source. The power source powers the shape memory alloy drive wire assembly, causing deformation that drives the actuator assembly to slide. Through multiple shape memory alloy drive wires and multi-stage actuator plates, the contraction and tension are progressively superimposed, improving the driving performance in micro-spaces and ultra-thin environments.

This invention discloses an end effector for unmanned aerial vehicles (UAVs), comprising: a robotic gripper module, a motion drive module, and a power output module. The motion drive module is connected to the robotic gripper module, and the motion drive module is also connected to the power output module. The robotic gripper module includes a fixed base and multiple robotic grippers. Each robotic gripper includes a rear gripper piece, a front gripper piece, and a connecting chain. The rear gripper piece and the front gripper piece are hinged together by a connecting pin to form a motion joint. A protective cover is provided outside the motion joint. The connecting chain sequentially connects the fixed base, the rear gripper piece, the motion joint, and the front gripper piece. The end effector of this invention is lightweight and compact, allowing it to be mounted on a UAV. The encased shell greatly reduces interference, occupies little space, and is adaptable to various application environments. The robotic gripper of this invention utilizes the elastic potential energy of a spring during retraction, requiring no energy consumption and effectively extending the device's operating time.

The utility model provides a dual motor outputting three groups of equal power, which comprises a first permanent magnet generator and a second permanent magnet generator which are fixed on the input and output ends of an engine crankshaft in a one-to-one correspondence manner, the number of branches of generators in the first permanent magnet generator and the second permanent magnet generator is 3N, N is a positive integer, and N is a positive integer. The three-phase windings of the 2N branches in the first permanent magnet generator are superposed and output in a one-to-one correspondence manner to obtain a first group of output power, and the three-phase windings of the remaining N branches in the first permanent magnet generator and the three-phase windings of the N branches in the second permanent magnet generator are superposed and output in a one-to-one correspondence manner to obtain a second group of output power; and the three-phase windings of the remaining 2N branches in the third permanent magnet generator are superposed and output in a one-to-one correspondence manner to obtain a third group of output power, and the three groups of output power are equal. The utility model also provides an inversion device for outputting three groups of equipower double motors. The generators are connected to the input end and the output end of the engine crankshaft so that the crankshaft can be balanced, the service life of the crankshaft is prolonged, and reliability of the crankshaft is improved.

The present disclosure relates to the technical field of cleaning robots, in particular to a hard surface cleaning robot based on non-circular equal-width curve design, which comprises a rack assembly and a control unit; the rack assembly comprises a carrier plate, a side plate, a contactor and a guide; the profile shape of the carrier plate is a non-circular equal-width curve, the side plate and the contactor are arranged on the edge of the upper surface of the carrier plate and enclose a continuous fence structure; the contactor is movably connected with the carrier plate, the front end of the contactor is provided with a mounting groove, the guide is arranged in the mounting groove and can move relative to the mounting groove; the control unit comprises a detector, the detector is connected with the contactor, the guide drives the contactor to move after being extruded, and the contactor drives the detector to generate a trigger signal. In the present disclosure, the cleaning robot is closer to the manual scrubbing action, which is beneficial to the cleaning of the surface, and the volume and mass of the robot are smaller than those of the square or circular robot when cleaning the same area.

The present application provides a preparation method of temozolomide preparation, comprising the following steps: A) adding sodium carboxymethyl starch, tartaric acid, colloidal silicon dioxide and part of anhydrous lactose into a compulsory mixer, then adding stearic acid and the rest of anhydrous lactose into the mixer in sequence after sieving, and mixing uniformly; B) adding temozolomide into the compulsory mixer, mixing uniformly, and filling capsules. The present application changes the adding time of stearic acid, simultaneously uses compulsory mixing in the preparation process, makes stearic acid uniformly distribute in the excipients, reduces the moisture absorption of the moisture-absorbing material, and then shows the overall moisture absorption reduction in the preparation, so as to achieve the effect of reducing the requirement of the preparation production on the environmental humidity while ensuring the dissolution stability.