8results about How to "Good mechanical support" patented technology

The invention discloses a degradable metal stent with a medicine storage cavity and a manufacturing method of the degradable metal stent, and relates to the technical field of medical instrument manufacturing. The inner-layer bracket and the outer-layer bracket are of hollow structures; the non-hollow parts of the inner-layer stent and the outer-layer stent are consistent in shape and are aligned and attached to each other; medicine storage grooves are distributed in a non-hollow part of the inner-layer bracket; the inner-layer stent and the outer-layer stent are both degradable metal stents. According to the invention, the drug coating on the outer layer of the stent releases the drug for early treatment, and the degradation speed of the outer-layer stent is higher than that of the inner-layer stent, so that the outer-layer stent can be degraded and disappear before the inner-layer stent, the drug storage groove on the inner-layer stent is exposed, and the drug is released again for treatment; therefore, long-time-span drug treatment can be conveniently achieved, and the problem that treatment is not convenient when plaques become large or blood vessels are blocked in the later period of the blood vessels is effectively solved.

This invention provides a high-pressure filtration device for sealing ring rubber melt, comprising: a machine base; a conveying assembly disposed on the machine base, the conveying assembly including a conveying pipe for conveying the rubber melt; and a filtering assembly including a filter plate inserted on the conveying pipe, the filter plate being provided with at least two sets of filter screens for filtering impurities. This invention, through the cooperation of a first driving assembly and two sets of filter screens, achieves parallel operation of working and cleaning, avoiding the inefficiency of traditional equipment requiring machine shutdown for filter screen replacement. It introduces a specialized bushing assembly, solving the problem of difficulty in maintaining high-pressure sealing after switching in transverse sliding filter plates. Through active compression sealing, it can withstand higher levels of conveying pressure without leakage. The entire filtration, switching, sealing, and cleaning process forms a closed loop, greatly improving the automation level of sealing ring rubber pretreatment.

The invention discloses a binder-free transition metal sulfide composite nitrogen-doped graphene negative electrode material and a preparation method thereof, and belongs to the technical field of secondary battery negative electrode materials. According to the technical scheme, the preparation method comprises the following steps: 1) dissolving zinc nitrate, cobalt nitrate and nitrogen-doped graphene in a mixed solution of ethanol and water, uniformly mixing, adding ammonium fluoride and urea, and continuously stirring; 2) adding foamed nickel and the uniformly mixed solution into a high-pressure reaction kettle for hydrothermal treatment, cooling, washing and drying to obtain a Zn-Co-precursor; (3) calcining the Zn-Co-precursor in an inert atmosphere, and (4) adding the Zn-Co-precursor into a high-pressure reaction kettle containing a sulfur source for hydrothermal vulcanization treatment, washing and drying to obtain the ZnCo2S4-coated NGr / NF negative electrode material.The graphene negative electrode material can improve the overall performance and stability of a secondary battery.

In some embodiments, a reusable filter system for interchangeable pleated filters is provided, the reusable filter system comprising: (a) a reusable frame including a first retainer, a second retainer, a third retainer, and a fourth retainer; (b) at least one flexible sheet configured to be attached to at least a portion of an upper pleat top face and / or a lower pleat top face and extending outwardly from a first pleat edge and a second pleat edge; and (c) at least one plug, wherein the first retainer, the second retainer, the third retainer, and the fourth retainer are configured to reversibly connect to each other to form the reusable frame, and wherein each of the first retainer, the second retainer, the third retainer, and the fourth retainer further includes a plug receiving portion sized and shaped to receive the plug. Other exemplary embodiments are described herein. In some embodiments, the reusable filter system is user-friendly and environmentally friendly, and reduces transportation costs.

The present application provides a kind of irradiation crosslinking collagen injection filling agent and its preparation method and purposes.The collagen injection filling agent includes collagen gel microparticle, the collagen gel microparticle has porous structure;The collagen gel microparticle has connected fiber structure, the fiber structure is formed by collagen self-assembly, and the fiber structure includes fiber bundle and / or fiber mesh lamellar structure;The collagen gel microparticle in the collagen injection filling agent of the present application has the fiber structure formed after collagen self-assembly, i.e. collagen is spontaneously assembled from collagen molecule to fiber bundle and fiber mesh lamellar structure, and the degradation rate is delayed.The fiber network structure of the present application has good mechanical support and slow degradation rate, and simulates the three-dimensional microenvironment of natural extracellular matrix (ECM), promotes cell adhesion proliferation and tissue regeneration.The fiber structure of the present application is beneficial to the crawling proliferation of cells, and promotes the regeneration and repair of skin cells.

Embodiments of the present application provide a lead assembly, a connector and an electronic system, the lead assembly comprising a first terminal module and a conductive shell, each first terminal module comprising at least one first signal conductive element and an insulating sheath, the insulating sheath covering the outer side of part of the structure of the first signal conductive element; the conductive shell integrally defining a plurality of first chambers separated from each other, the plurality of first terminal modules and the plurality of first chambers corresponding one by one, each first terminal module being arranged in the corresponding first chamber. According to the technology of the present application, through the combination of the conductive shell and the plurality of first terminal modules, the first terminal module can effectively realize efficient signal transmission and reliable electrical connection, effectively isolate each first terminal module, which is conducive to reducing the electromagnetic interference between adjacent first terminal modules, reducing the signal loss of the first terminal module in the connector, so as to ensure that the first terminal module can realize efficient signal transmission.

The utility model relates to the technical field of wind power generation, and provides a new energy wind power plant circuit stability control device which comprises a control box, a locking structure and a base, a power module, a control panel, a main chip, a communication module and a serial port are fixed in the control box, the control panel is located on one side of the power module, and the main chip is arranged in the center area of the control panel. The communication module and the serial port are arranged on the side, away from the power module, of the control panel, and a circuit module is arranged outside the control box and located on the side, away from the control panel, of the communication module and the serial port; the locking structure comprises a locking seat and a locking frame, the locking seat is arranged in the peripheral area of the bottom of the control box, the locking frame is arranged in the peripheral area of the top of the control box, and the locking frame is fixedly connected with the locking seat through a fastening structure; the base is arranged at the bottom of the control box and the locking structure and used for supporting the control box and the locking structure. Through the arrangement, the anti-interference capability of the device is enhanced, the interference in the signal transmission process is reduced, and the stable operation of the circuit is ensured.

The invention belongs to the technical field of conductive fabrics, and particularly relates to a conductive fabric and a preparation method and application thereof. The preparation method of the conductive fabric comprises the following steps: adding a metal salt into an MXene dispersion liquid to obtain a mixed solution I, immersing a base material into the mixed solution I, and repeatedly pulling to load MXene on the surface of the base material to obtain an MXene-loaded base material; and mixing nickel salt, an organic ligand and a solvent to obtain a mixed solution II, contacting the MXene-loaded base material with the surface of the mixed solution II, then dropwise adding ammonia water into the mixed solution II, carrying out a heating reaction, and drying to obtain the conductive fabric. The prepared conductive fabric is in a sandwich-like form of a PMIA layer, an MXene layer and an MOF layer, a conductive material is not added into the fabric, intrinsic characteristics of the electrostatic textile fabric cannot be damaged, and the problem that in the prior art, mechanical flexibility of the fabric is insufficient is solved on the premise that excellent conductivity is guaranteed.