10results about How to "Common material" patented technology

The invention provides a preparation method of a special aluminum electrolytic capacitor for a low-temperature-resistant detonator trigger, and the method comprises the following steps: cutting a positive electrode foil and a negative electrode foil, and riveting the cut positive electrode foil and negative electrode foil with a positive guide pin and a negative guide pin; placing electrolytic paper between the riveted positive electrode foil and negative electrode foil, winding the electrolytic paper to form a core package, injecting electrolyte into the core package, and sealing the core package in an aluminum shell by using colloidal particles to obtain a semi-finished capacitor; and cleaning the semi-finished product capacitor, sleeving, and sequentially carrying out primary aging sorting, secondary aging sorting, appearance observation and inspection to obtain the capacitor. The preparation method of the aluminum electrolytic capacitor special for the low-temperature-resistant detonator trigger is simple in production process, common in material and low in price, and the prepared aluminum electrolytic capacitor is excellent in electrical performance, wide in working temperature range and small in size.

The utility model relates to the technical field of building decoration, in particular to a damping and noise-reducing supporting structure for an indoor floor rostrum / stage. The structure comprises a keel, a reinforced fiber cement board located on the keel, a surface layer material laid on the reinforced fiber cement board and stand columns supporting the keel to form a three-dimensional frame structure, and rubber filler strips are arranged between the keel and the reinforced fiber cement board. The stand columns are fixed to a building / ground through steel plates, rubber cushion blocks are arranged between the steel plates and the building / ground, and the steel plates and the rubber cushion blocks are fixed to the building / ground through expansion bolts. By arranging the rubber filler strips and the rubber cushion blocks, a double-damping and noise-reducing structure is formed, a sound bridge is blocked, and the structure is safe, convenient to construct, low in manufacturing cost and high in adaptability.

This invention relates to the field of food labeling technology, and more particularly to a smart label assembly and its preparation method. A smart label assembly includes: a substrate layer, a color-developing layer, and a protective layer; the color-developing layer is fixed to the surface of the substrate layer, and the protective layer covers the surface of the color-developing layer; the color-developing layer includes: an amine oxidase-type color-developing area and a glucose oxidase-type color-developing area. When livestock and poultry meat spoils and produces volatile amines and glucose degradation products, these two types of substances are catalyzed by amine oxidase and glucose oxidase, respectively, to produce ammonia and hydrogen peroxide, which then react with indicators on the label to produce color changes. The two types of labels are used together for mutual verification, forming a rapid detection method for livestock and poultry meat spoilage using smart labels, which can directly determine the quality of livestock and poultry meat. This label is simple to prepare, low in cost, and suitable for fresh livestock and poultry meat packaging, allowing monitoring from the freshness stage.

The present invention relates to the field of projection technology, and discloses an ultra-short-focus projection system, including an optical machine with a light valve fixed thereon; a lens for projecting the light emitted by the light valve; a plurality of coaxially arranged lenses are arranged in the lens; the lenses are arranged in sequence along the propagation direction of the light: the first lens of the front group is a first spherical lens, the second lens of the front group is a second spherical lens, the third and fourth lenses of the front group are double-cemented lenses; the third lens of the front group is a first double-concave spherical lens, and the fourth lens of the front group is a second double-convex spherical lens; the first lens of the rear group is a glass spherical mirror, the second lens of the rear group is a first plastic aspherical lens, and the third lens of the rear group is a second plastic aspherical lens; the light-emitting center of the light valve and the optical axis center of the lens do not coincide. The present application realizes the overall coordination between the systems by designing the lenses in the lens system, and a wider picture can be projected at the same projection distance.

The utility model relates to a novel oral saliva suction tube device. A supporting piece used for supporting the pipe wall is installed on the pipe wall of the suction hose along the pipe body, and the supporting piece is embedded in the pipe wall; the infusion regulator is sleeved on the suction hose; the first suction head assembly comprises a first connecting pipe and a first thin pipe, and the first thin pipe is connected to the first connecting pipe in an inserted mode. According to the novel oral saliva suction tube device, the suction hose plays a role of a tube cavity, the tube wall of the suction hose is provided with the supporting piece along the tube body, so that the twisting control performance of the suction hose is improved, the infusion regulator is used for regulating the flow of the suction hose, the first suction head assembly is used for sucking saliva and other secretions in the oral cavity of a patient, and the device is made of common materials; the oral cavity aspirator is simple in structure and low in processing and production difficulty, and can not only meet the conventional suction of saliva and secretions in the oral cavity, but also suck disinfectant in the root canal in the root canal flushing process.

The utility model discloses a concrete distributing device for a bridge cable bent tower, which relates to the technical field of constructional engineering and comprises a base and a distributing component arranged on the base. The material distributing assembly comprises a vertical rod arranged on the supporting beam, a material collecting bin arranged on the vertical rod and a material distributing sliding groove formed in the bottom of the material collecting bin and used for distributing materials, the vertical rod can be arranged on the supporting beam in an up-down moving mode, and the material collecting bin is rotationally arranged on the vertical rod; a traditional construction method of high-rise concrete single-point distribution is changed, the construction technology of concrete symmetry, layering and continuous pouring is applied, the construction quality of a reinforced concrete structure is fully improved, structural safety is guaranteed, and the problems that in a traditional narrow space, the multi-person operation space is limited, and the safety risk is high are solved.

The utility model relates to the technical field of magnetic material conveying, and discloses a magnetic material lifting conveyor in order to solve the technical problems that an existing conveyor is unstable in conveying and low in efficiency. Comprising a main body frame, a console is arranged at the upper end of the main body frame, a lifting and conveying device is arranged in the main body frame, the lifting and conveying device comprises a device main body, a conveying assembly used for conveying is arranged on the device main body, and a linear guide rail used for moving the conveying assembly is arranged on the device main body; a ball screw used for controlling the conveying assembly to move up and down is arranged in the middle of the device body. When the device is used, a program of the device is set through a console, magnetic materials are conveyed through the conveying assembly during feeding conveying, then the conveying assembly is controlled by the ball screw to move on the linear guide rail, the conveying assembly can flexibly move up and down, and the magnetic materials are conveyed.

The utility model discloses a movable supporting device for a seamless steel tube cold-rolling mill counter weight. The movable supporting device comprises a vehicle body, wheel shafts and idler wheels. The trolley body is of a symmetrical frame structure and comprises a support, side vertical plates and lug plates. The two side vertical plates are vertically and symmetrically arranged at the two ends of the support in the length direction. The top surface of the side vertical plate is a supporting position; the two lug plates are vertically and symmetrically arranged on the upper surfaces of the two side edges of the support in the length direction. The two end parts of the axle respectively penetrate through the lower parts of the corresponding side vertical plates and are positioned outside the vehicle body; and the roller is connected to the end part of the wheel shaft. On the basis that operation safety is guaranteed, operation efficiency is improved, labor intensity is further relieved, and the requirement for orderly operation of cold rolling of seamless steel pipes is met.

The invention belongs to a positioning device, and particularly relates to a device for preparing a positioning key pin hole in the inner wall of a container. The device comprises a bottom plate, a connecting plate is arranged on the bottom plate, the bottom plate and the connecting plate form a T-shaped structure, a fixing mechanism is arranged on the connecting plate, and an anti-sliding mechanism and an adjusting mechanism are arranged on the side, opposite to the connecting plate, of the bottom plate. The magnetic drill has the remarkable effects that (1) the magnetic drill has the characteristics of high drilling precision, small size and large adsorption force; the fixing device is made of Q235B steel, materials are common and easy to purchase, the structure is simple, manufacturing is easy, and the manufacturing cost of the drilling tool is reduced; (3) the fixing device is combined with the actual site situation, bolt connection is utilized, the mounting frame is simple in structure, efficient, reliable, high in stability and convenient to operate, the auxiliary time is shortened, and the production efficiency is greatly improved; (4) the fixing device is made of Q235B steel, has enough strength and rigidity, and is simple and convenient to operate, labor-saving and safe to use; and (5) the fixing device is simple to assemble and easy to disassemble and assemble.

The invention provides a dynamic explosion test loading structure and a charge dynamic explosion loading rocket sled test system, and mainly solves the problem that real shock wave data cannot be accurately obtained in a gun firing test during charge detonation of dynamic explosion. The dynamic explosion test loading structure comprises a seat body and a sealing cap, the medicine ball is arranged in a groove in the top surface of the seat body; the dynamic explosion test loading structure is arranged on a rocket sled platform, the explosive ball is loaded to a preset speed through the rocket sled, the explosive ball is separated from the rocket sled, the explosive ball reaches a preset explosion point above a shock wave characteristic parameter test area, and the explosive ball is detonated by the detonating device. A sensor and a high-speed camera are arranged in a test area, explosive ball explosion moment information and shock wave field evolution process images and displacement parameters are obtained, and therefore accurate experiment information is obtained; the method has the advantages of being controllable in test state, high in universality, good in repeatability, convenient to test and the like, and a reliable test method is provided for charge detonation.