9results about How to "Single structure" patented technology

The invention provides a urinary system calculus discharge promoting device and a calculus extractor, and relates to the technical field of urinary surgery equipment. Comprising a first taking-out branch pipe, a second taking-out branch pipe is arranged in the first taking-out branch pipe in a sleeved mode, a filling air bag is arranged at the end of the first taking-out branch pipe, a stone crushing mechanism is arranged at the end of the second taking-out branch pipe, a third taking-out branch pipe is arranged in the second taking-out branch pipe in a sleeved mode, and a stone crushing ejector pin is arranged on the inner side of the third taking-out branch pipe; the outer end of the third taking-out branch pipe is connected with a pressure pumping device; compared with the prior art, the lithotripter is simple in structure, convenient to use, capable of effectively completing lithotripsy operation and convenient for lithotripsy.

The invention relates to an adjustable oil nozzle device, and belongs to the technical field of oil and gas exploitation equipment. One end of an oil inlet central pipe is connected with an inner screw thread of an oil nozzle sleeve, and the other end is connected with a reducer union; the other end of the reducer union is connected with the control shaft; the connector sleeves the outer sides of the reducer union and the control shaft, a plurality of holes are formed in the control shaft in the radial direction, a through hole is formed in the side wall of the connector, and the through hole corresponds to one hole in the control shaft; one end of the oil nozzle body is connected with the oil nozzle sleeve, an annular space formed by the inner wall of the oil nozzle body and the outer wall of the oil inlet center pipe is an oil gas outlet channel, one end of the annular space is shielded by a reducer union, and an oil nozzle hole is formed in the side wall of the oil nozzle body and communicated with an oil outlet mechanism. The sealing ring is sleeved on the connecting plug, and the pressing cap is tightly screwed on the outer side of the connector. Compared with the prior art, the holes are formed in the control shaft, only the control shaft needs to be rotated during replacement, and time and labor are saved.

The utility model discloses a combined vernier length measuring structure which comprises a plate-shaped first structural body and a plate-shaped second structural body, wherein the edges of the first structural body and the second structural body are attached. The first structural body comprises at least four straight edges which are connected end to end, the first structural body is provided with at least one concave angle, and a length scale mark is arranged on one straight edge in the horizontal direction of the concave angle; the second structural body comprises at least three straight edges which are connected end to end, the second structural body is provided with at least one convex corner, vernier scale marks are arranged on one straight edge in the horizontal direction of the convex corner, and the concave corner and the convex corner are both right angles; the ruler has the advantages that the principle of a vernier caliper is adopted, the first structural body and the second structural body are used in cooperation, and compared with an existing ruler, the ruler can effectively improve the length measuring precision.

The invention discloses a high-capacity strong-power body-centered cubic structure Ti-Cr-Mo-Ni hydrogen storage alloy material, the chemical composition general formula of the material is TixCryMozNir, in the formula, x, y, z and r are atomic ratios, and x is more than or equal to 0.35 and less than or equal to 0.4, y is more than or equal to 0.35 and less than or equal to 0.5, z is more than or equal to 0.10 and less than or equal to 0.15, and r is more than or equal to 0.01 and less than or equal to 0.10; the preparation method of the hydrogen storage alloy material mainly comprises the steps of burdening, smelting, heat treatment and gas quenching treatment in sequence. The preparation method is simple, the process is easy to control, the prepared material is stable in structure, uniform in alloy component and uniform in grain size and has excellent reversible hydrogen storage density and hydrogen absorption and desorption power, the reversible hydrogen storage capacity of the material is 2.1 wt.% under 313K, and the time for reaching hydrogen desorption balance is about 1 minute.

The present invention discloses a method for locating the sound source of equipment failure based on deep learning theory, comprising the following steps: collecting sound source signals through a microphone array MEMS sensor to obtain the original sound source signal of the fault point; performing Fourier transform and grayscale processing on the original sound source data to convert it into an STFT grayscale image, and inputting the STFT grayscale image into a trained sound source position neural network module to obtain the positioning information of the fault point; inputting the original sound source data into a trained sound pressure intensity neural network module to obtain the sound pressure intensity of the fault point; combining the positioning information of the fault point with the sound pressure intensity to judge the fault condition of the equipment. Based on the characteristics of the original sound source data, the present invention innovatively adopts a multi-task learning network architecture of a mutually independent sound source position neural network module + a sound pressure intensity neural network module, thereby simultaneously obtaining the positioning information and sound pressure intensity of the fault point, providing two-way support for the judgment of the equipment fault condition.

The invention discloses a suspension cell sphere based on self-floating microbubbles as well as a preparation method and application of the suspension cell sphere, and belongs to the technical field of three-dimensional culture of cells. Aiming at the problem of complicated operation caused by dependence on an external field or exogenous matrix in the existing three-dimensional culture technology, the method comprises the following steps: mixing and adsorbing cells and polylysine modified self-floating microbubbles in an adsorption solution, and then inoculating the cells and the polylysine modified self-floating microbubbles to a polydimethylsiloxane hydrophobic pore plate in a liquid drop form; enabling the cell-microbubble complex to float to the top end of the liquid drop to be enriched by utilizing the buoyancy of the self-floating microbubble; transferring the complex to fresh culture liquid drops through a liquid drop sandwich method to realize mild separation of unbound cells; and finally, culturing to form the suspension cell sphere. The method is suitable for preparing multicellular tumor balls and culture kits, and can be used in the fields of drug screening, tumor biological research, tissue regeneration and the like.

This application relates to the field of biomedical polymer materials technology, and discloses a variable-rigidity chest drainage tube based on a stimulus-responsive hydrogel and its preparation method. The variable-rigidity chest drainage tube comprises an interpenetrating network hydrogel, which includes: a chitin first network, prepared by phase inversion from a chitin solution with a mass percentage concentration of 1.5-4.0%; and a polyacrylamide second network, formed by polymerizing a second network precursor solution in the first network. The second network precursor solution comprises: 15-30% w / v acrylamide; 0.1-1.0% w / AAm N,N'-methylenebisacrylamide; and 0.5-2.0% w / AAm ammonium persulfate. This invention utilizes the reversible reconstruction mechanism of hydrogen bonds between the chitin and polyacrylamide networks to maintain high rigidity of the drainage tube before insertion and transform it into high flexibility after placement in body fluid, thus solving the patient discomfort and tissue damage risks caused by excessive rigidity of silicone tubes.

The invention relates to the technical field of polymer processing and forming, in particular to a radiation cooling fiber braided fabric with a double-layer porous structure and a preparation method of the radiation cooling fiber braided fabric. The invention discloses a radiation cooling fiber braided fabric with a double-layer porous structure. The radiation cooling fiber braided fabric is formed by twisting and braiding profiled fibers; after the special-shaped fibers are twisted and woven, different special-shaped fibers are interwoven to form an external porous structure; the profiled fiber comprises a nanofiber porous framework and inorganic photon particles, the inorganic photon particles are coated with the nanofiber porous framework, and an internal porous structure is formed under the supporting action of the inorganic photon particles; the external porous structure and the internal porous structure of the profiled fiber jointly form a double-layer porous structure of the radiation cooling fiber braided fabric. The preparation method comprises the following steps: (1) preparing primary special-shaped gel filaments; (2) a super-stretching stage of the primary special-shaped gel filaments; (3) a special-shaped gel silk extraction stage; and (4) a special-shaped fiber twisting and weaving stage.

The utility model relates to the technical field of decorative lighting, in particular to a fast-assembly chain lamp which is formed by sequentially hinging at least two lamp body units. Each lamp body unit comprises a light-transmitting lamp tube, a first sealing plug set inserted into one end of the light-transmitting lamp tube, a second sealing plug set inserted into the other end of the light-transmitting lamp tube, a transparent protection tube contained in the light-transmitting lamp tube and inserted into the first sealing plug set and the second sealing plug set, and an LED lamp filament contained in the transparent protection tube. The first sealing plug sets of every two adjacent lamp body units are hinged, the second sealing plug sets of every two adjacent lamp body units are hinged, and therefore the formed chain lamp is different from traditional common decorative lighting, is novel, can better attract the appearance of consumers and meet the requirements of the consumers, the lamp body units are simple and single in structure, assembly line production and installation are met, and the production cost is reduced. And the installation efficiency is improved.