4results about How to "Meet multi-functional needs" patented technology

The invention discloses a beetle elytra-imitated interlocking structure, a metamaterial plate comprising the beetle elytra-imitated interlocking structure and a composite armor system, and belongs to the field of multifunctional advanced protective materials. The interlocking structure comprises a plurality of functional elements arranged in a planar array, the adjacent functional elements are mechanically connected through geometric interlocking interfaces, the contact surfaces of the geometric interlocking interfaces are in a non-chemical bonding state and can generate relative dislocation under an impact load, and the geometric interlocking interfaces are in a non-chemical bonding state. Each functional element is integrally prepared from a polymer-based composite material dispersed with an electromagnetic loss filler, the interior of each functional element is of a three-dimensional porous micro-lattice structure with a negative Poisson's ratio effect, and the porosity and / or cell size of each three-dimensional porous micro-lattice structure are / is changed in a gradient manner in the thickness direction of the corresponding functional element. The metamaterial plate and the composite armor system using the interlocking structure can effectively inhibit structural layering under an impact load, can actively improve anti-penetration capability, and also have an excellent broadband electromagnetic wave absorption function.

The utility model discloses a kind of multi-channel switching mechanism for refrigerant filling valve group, including ball valve, ball valve one end is connected with the installation of coil pipe, pipeline switching mechanism is rotatably installed in coil pipe, another end of coil pipe is connected with the installation of three groups of branch pipe, ball valve is connected with pipeline switching mechanism, and pipeline switching mechanism can be communicated with each group of branch pipe by rotating respectively. The utility model passes through pipeline switching mechanism, and its selective communication of multiple branch pipes is realized by rotating, functional switching is realized, and the stability of coil pipe and entire pipeline system is guaranteed by the double regulation of length and angle of two support structures, the cooperation of three, which meets the channel switching demand of multiple processes, high-precision in refrigerant filling, and also improves the reliability of equipment under complex working conditions through the optimization of mechanical structure.

The utility model relates to the technical field of graphite boats, and particularly provides a nut loosening and tightening device and a boat calibration machine, the nut loosening and tightening device comprises a support plate, a linear driving module, a torque output mechanism and a pushing mechanism; the support plate is movably connected with the torque output mechanism through the linear driving module. The torque output mechanism comprises a rotary driving assembly and a nut sleeve, and the rotary driving assembly is in transmission connection with the nut sleeve; the rotation driving assembly is used for driving the nut sleeve to rotate, the pushing mechanism coaxially penetrates out and is in sliding connection with the rotation driving assembly and the nut sleeve, and the nut sleeve is arranged to be an opposite clamping layer synchronous reducing sleeve so as to be matched with nuts of different specifications. The opposite clamping layer synchronous reducing sleeve comprises an inner sleeving end movably connected with the rotary driving assembly and an outer sleeving end connected with the inner sleeving end in a sleeving mode, sleeving modes can be automatically switched according to the inner diameter or the outer diameter of the nut, and the opposite clamping layer synchronous reducing sleeve can be matched with nuts of different specifications.

The utility model relates to the technical field of 3C accessories, in particular to a mobile power supply. The mobile power supply comprises a main body, a first wireless charging panel, a second wireless charging panel and a telescopic data line module. And a first wireless charging module is arranged in the first wireless charging panel. A containing groove is formed in one side face of the main body, and the first wireless charging panel is rotationally installed in the containing groove; the first wireless charging panel is rotated, and the first wireless charging panel can be rotated out of the containing groove or rotationally contained in the containing groove. A second wireless charging module is arranged in the second charging panel; a top mounting cavity is formed in the top of the main body, a third wireless charging module is mounted in the top mounting cavity, and an upper cover covers the third wireless charging module; a connecting opening is formed in one side edge of the upper cover, and a rotating shaft is mounted in the connecting opening; and one side of the second wireless charging panel is provided with a rotary connecting sheet.