154results about How to "Reduce types" patented technology

This invention provides an ophthalmic gel composition comprising (1) ropinirole or a pharmaceutically acceptable salt thereof, (2) one or more thickeners, and other pharmaceutically acceptable excipients, wherein the viscosity of the ophthalmic gel composition is ≥100 mPa·s. The ophthalmic gel composition increases the viscosity of the product, prolonging the adhesion time of ropinirole to the eye. Compared with other dosage forms, it achieves both rapid onset of action and convenient administration, greatly enhancing its clinical value as an emergency medication.

The utility model discloses a modularized bumper structure capable of being replaced quickly, which comprises a bumper assembly and an energy absorption box, the bumper assembly comprises a bumper main body, a framework and a cross beam, the framework and the cross beam are embedded in the bumper main body, and the energy absorption box is mounted on one side, close to a vehicle body, of the cross beam. A quick connecting structure is arranged at the joint of the energy absorption box and the automobile body. After collision, only damaged parts need to be replaced, the maintenance cost is reduced, the maintenance time is shortened, the honeycomb structure is combined with the multi-stage energy absorption design, the collision safety is improved, the modular design is matched with different vehicle types, the types of parts are reduced, the maintenance cost is reduced through the detachable design, and meanwhile the energy absorption efficiency is improved.

This utility model relates to a surge arrester shielding device, including an insulating cover. The insulating cover comprises two bodies, which are combined to form a platform shape. The interior of the insulating cover is hollow, and both the top and bottom ends are missing. A connecting plate is provided on the outer side of each of the two bodies, and the two connecting plates are hinged together by a hinge shaft. A locking assembly is provided on the outer side of the two bodies, opposite to the connecting plate. This surge arrester shielding device uses a platform-shaped shielding cover with different opening diameters at the top and bottom. It can fit onto the outer side of surge arrester flanges of different sizes, eliminating the need for custom-made insulating covers for different sizes of surge arresters. When the flange diameter varies within a certain range, the platform-shaped conical shielding cover can adaptively wrap by adjusting its height. This avoids the problems of traditional cylindrical insulating covers being too loose and causing leakage, or too tight and difficult to install, which are caused by fixed dimensions. It significantly reduces the types of spare parts and lowers equipment management costs.

The invention discloses a flat wire motor stator winding, which comprises a wire inserting stator and a winding wound on the stator, and is characterized in that the wire inserting stator comprises a stator iron core provided with M stator slots at equal intervals, and a flat wire motor corresponding to the pole number P is provided, and the stator slots are divided into 2n slot layers along the radial direction of the stator iron core; the windings comprise three phases of phase windings, and each phase winding comprises a first winding unit and a second winding unit which are the same and formed by hairpin coils; the first winding unit comprises a plurality of different-layer hairpin coils with spans of q, q-1 and q + 2, the different-layer hairpin coils are arranged between two adjacent slot layers of the stator slot in a crossing manner, the span between two adjacent different-layer hairpin coils is q, and q is M / P; and each phase winding comprises a parallel branches. According to the invention, wire outgoing can be carried out on one side of the iron core, wire outgoing can also be carried out on two ends of the iron core, the method adapts to a winding scheme of integer hairpin coil number and non-integer hairpin coil number of a single branch, and combination of pole-to-slot ratio and parallel branch number can be flexibly carried out.

The application discloses a cavity filter, which comprises a cavity, an upper cover plate, a plurality of tuning screws, an input joint and an output joint. The cavity is divided into a plurality of resonant cavities which are open upward, and a resonant body is arranged in each resonant cavity. The resonant body comprises a resonant rod and a resonant column which are integrally formed. The first end of the resonant rod is integrally formed with the side wall of the resonant cavity, the second end of the resonant rod is cross-connected with the resonant column, and the resonant column extends up and down in the resonant cavity. The upper cover plate is arranged on the upper side of the cavity. The plurality of tuning screws are arranged on the upper cover plate and respectively extend into the plurality of resonant cavities. The bottom end of the tuning screw faces the resonant rod and is spaced from the resonant rod up and down. One side of the tuning screw faces the resonant column and is spaced from the resonant column. The input joint and the output joint are arranged on the side wall of the cavity and are respectively connected with one of the plurality of resonant rods. The application can greatly reduce the types and quantity of materials, simplify the manufacturing process, improve the production efficiency and reduce the cost.

The utility model discloses a quick connecting device for a multi-layer steel structure factory building, which comprises a lower limiting piece and an upper limiting piece, the lower limiting piece and the upper limiting piece are mounted together, the lower limiting piece comprises a lower mounting seat, the outer wall of one side of the lower mounting seat is provided with an inserting groove I, and the outer wall of one side of the top of the lower mounting seat is provided with a connecting seat through a bearing; the upper limiting part comprises an upper mounting seat, a second inserting groove is formed in the outer wall of one side of the top of the upper mounting seat, a mounting groove is formed in one side of the bottom of the inner wall of the second inserting groove, and one end of the connecting seat is mounted in the mounting groove through a bearing; according to the bearing matching structure of the connecting base, the upper mounting base and the lower mounting base, 360-degree rotation adjustment of the stand column and the cross beam can be achieved, the limitation that a traditional H-shaped steel connecting device can only be fixed in a one-way mode is overcome, and the problem that an I-shaped steel beam tooth-shaped web meshing structure cannot adapt to non-orthogonal connection is solved; and the rotating structure enables a single node to be connected with cross beams with different angles simultaneously, so that the types of connecting pieces are reduced, and the connecting cost is reduced.

The utility model discloses a protective belt assembly and a display device. The protective belt assembly comprises a protective belt and a release film bonded to the front face of the protective belt, the protective belt assembly is divided into a plurality of sub-protective belt assemblies by cutting lines in the width direction of the protective belt, and the length of the sub-protective belt assemblies is determined according to the length of each protective area, needing to be protected, of the protective belt. The protection belt assemblies of different sizes are normalized by dividing the protection belt assemblies into the multiple sections of sub protection belt assemblies, one protection belt assembly can adapt to protection of protection areas of different sizes, multiple protection belt assemblies are not used, the material types are few, and if the protection belt assembly is not normalized, has multiple structures and needs to adapt to the protection areas of different shapes or sizes, the protection belt assembly can be used for protecting the protection areas of different sizes. The structure is complex, after normalization, the protection belt assembly of one structure can adapt to protection of protection areas of different shapes or sizes, and the structure is simple; after normalization, the protection belt assembly can be shared, only one protection belt assembly needs to be purchased, the purchase quantity of the protection belt assembly is large, and the cost is low.

The invention relates to a synthesis method and application of a double-layer thermochromic deformation hydrogel, according to the double-layer thermochromic deformation hydrogel, CMC is adopted to perform mechanical enhancement on original PNIPAm, LAP is adopted to perform photo-initiation on a monomer, and the price of CMC and LAP is far lower than that of functionalized silicon dioxide nanoparticles and AIBA in the prior art under the same usage amount. Meanwhile, drugs used in the process are free of volatility and corrosivity, and the safety degree is higher than that of acrylic monomers used in the prior art. Besides, the use temperature of a hydrogel device in the prior art is 60 DEG C and is high, while the double-layer temperature-sensitive hydrogel in the invention can be curled only at 40 DEG C, so that the hydrogel has more advantages in temperature. By adding CMC, the volume change of the hydrogel in the heating process is remarkably reduced, meanwhile, the mechanical property of the hydrogel is greatly improved, the mechanical property of the hydrogel is further improved through impregnation of zirconium ions, and the hydrogel has a wider application scene.

The application discloses an aluminum cover forming method and an aluminum cover and relates to the technical field of aluminum cover manufacturing. The aluminum cover forming method comprises the following steps: S1, placing an aluminum plate into an initial forming die, and forming a macro-domain large curved surface in the middle of the aluminum plate and an initial foot position with the same height as a required foot position on the circumferential edge of the aluminum plate through the extrusion force of a press machine and the initial forming die; S2, placing the aluminum plate preliminarily formed in S1 into a final forming die, and further forming the macro-domain large curved surface formed in the middle of the aluminum plate into a final shape at room temperature through the final forming extrusion pressure of the press machine, and flowing and filling the edge cavity of the final forming die to form an edge through the extrusion of the final forming die, and forming a final foot position shape through the extrusion of the initial foot position; and S3, opening the die to take out the formed aluminum cover. The production of the large-size foot position height aluminum cover can be realized at room temperature, the energy consumption is low, and the aluminum cover is simple and convenient to manufacture.

This invention provides a collector for recovering platinum group metals (PGMs) from spent catalysts, its preparation method, and its application, belonging to the technical field of precious metal recovery. The collector comprises a copper matrix, a flux, a framework support, and a lattice activator: the copper matrix, flux, and lattice activator are loaded on the surface of the framework support; the copper matrix is ​​elemental copper or a copper-based compound; the flux is boric acid or a borate; the framework support is a porous inorganic material; and the lattice activator is tin, a tin alloy, or a metal sulfide. The collector serves as a collector for the pyrometallurgical recovery of PGMs from spent catalysts. This invention constructs a multi-component synergistic collector composed of a copper matrix, flux, framework support, and lattice activator, which significantly improves the recovery rate of PGMs, especially rhodium, from spent automotive exhaust purification catalysts in pyrometallurgical treatment, and reduces the smelting temperature required for pyrometallurgical treatment, thus significantly reducing energy consumption.

This utility model provides an oil fume treatment device and an integrated stove, relating to the field of cooking equipment technology. The oil fume treatment device includes a smoke collection component, a smoke exhaust component, and a volute assembly. The smoke collection component has a smoke collection chamber and a first air outlet and a second air outlet communicating with the smoke collection chamber. The smoke exhaust component is disposed within the smoke collection chamber and has a first smoke exhaust channel communicating with the first air outlet and a second smoke exhaust channel communicating with the second air outlet. The volute assembly is disposed within the smoke collection chamber and is rotatably connected to the smoke exhaust component. The volute assembly has a volute outlet and a functional component. The oil fume treatment device and integrated stove provided by this utility model allow the volute assembly to rotate by manually driving the functional component, which can reduce the number of stock keeping units (SKUs) and lower the burden of inventory management.

The utility model discloses a bearing seat and tracking support relates to photovoltaic power generation technical field, and this support includes main beam, bearing seat, photovoltaic bearing and non -driven stand. Bearing seat is enclosed by the stamping cover plate and stamping bearing base of mutual adaptation, and the inside holds photovoltaic bearing, and the stamping bearing base is combined by two same stamping sub -units, and the bottom is connected with non -driven stand. Photovoltaic bearing is integral type spherical high molecule structure, and the sleeve joint is in main beam outside, and its spherical outer contour is adapted with bearing seat inner wall, can realize main beam angle adjustment, and the stamping sub -unit has H type and Y type two, is connected with non -driven stand wing plate or directly with waist board through corbel adapter, and the bearing seat axial both ends are equipped with flanging, and the base is equipped with the strip. The utility model discloses through stamping structure reduces the cost, shortens the period, and realizes flexible angle -adjusting with the help of spherical bearing, and the adaptability is strong, is applicable to large -scale photovoltaic power station.

The utility model belongs to the technical field of genetic material extraction appliance, concretely relates to special centrifugal tube suit of south American white prawn nucleic acid extraction, including the pipe body, the top threaded connection of pipe body has the pipe cap, the position department of pipe body outer wall is close to the fixed setting of mounting ring of top, the outer wall of pipe cap is below the sliding ring of mounting ring and is connected with the damping sliding, the position department of mounting ring bottom close to the outside edge is hinged with four upper articulated rods at equal intervals, the top of sliding ring is hinged with the lower articulated rod of corresponding position of upper articulated rod, and the corresponding upper articulated rod is hinged with the lower articulated rod between setting articulated assembly. The utility model places the pipe body on the test tube rack through the amplitude of the lower articulated rod and the upper articulated rod protruding from the outside of the pipe body to support the pipe body, so that the pipe body can be adapted to different diameter types of test tube racks, increase the types of centrifugal tubes that can be adapted to test tube racks, facilitate the use of centrifugal tubes, and at the same time, reduce the types of test tube racks that need to be purchased, and reduce the cost of purchasing test tube racks.

The application provides a method for heavy floatation and combined separation of collophanite by a multi-grain product spiral chute, wherein the collophanite is first ground and slurried, then subjected to gravity separation and grading, and the product is divided into coarse-grain product, medium-grain product and fine-grain product; the medium-grain product is returned to continue grinding, and the coarse-grain product and the fine-grain product are respectively subjected to reverse flotation treatment. The application adds a medium-grain product to the common double-product gravity separation process, and the product is mostly un-dissociated dolomite. Since the physical difference in specific gravity between the apatite and the dolomite in the collophanite is small, the coarse-grain dolomite has a great influence on the grade of the coarse-grain product of the gravity separation, so the application returns the medium-grain product to the ball mill for secondary dissociation, so that the mineral processing process is simple, the operation cost is low, the separation effect is improved, the product index of the phosphate concentrate is optimized, and the rational utilization of the phosphate rock resources is realized.

This invention discloses a frameless modular air conditioning unit, assembled from multiple unit panels and various connectors. Each unit panel includes an outer panel, an inner panel, and connecting frames. The connecting frames are located around the inner and outer panels and include symmetrically arranged inner and outer frames. Each end of the inner and outer frames has a slot for inserting the inner and outer panels. A foam layer is filled between the inner and outer panels. The connectors include a first connector and a second connector. The first connector enables a planar connection between the two connecting frames, and the second connector enables a vertical connection between the two connecting frames. This invention eliminates the need for front / back and left / right orientation during assembly, reducing processing and assembly difficulty. Furthermore, different connectors allow for various splicing methods, improving the panel's versatility.

This invention belongs to the field of sodium-ion battery cathode material technology, and its purpose is to provide a new synthetic technique and process for preparing sodium iron pyrophosphate composite cathode materials using an anhydrous precursor, as well as its application. This patented technology aims to overcome several key problems existing in traditional preparation processes, including the reduction in material crystallinity caused by the evaporation of water of crystallization during calcination, the poor thermal stability of sodium iron sulfate, and the low electronic conductivity of sodium iron pyrophosphate. To effectively address these challenges, this patented technology innovatively proposes a method for preparing bio-carbon-coated Na2Fe2P2O7SO4 composite cathode materials using an anhydrous precursor. This preparation method utilizes iron phosphate as a raw material, optimizes the material synthesis process, and has high feasibility and operability. Experimental results show that this composite material exhibits excellent discharge specific capacity and cycle stability, indicating its promising application prospects in the future energy storage field.

The invention discloses a preparation method of cinacalcet hydrochloride. The preparation method comprises the following steps: 1) carrying out a reaction on 3-(3-trifluoromethylphenyl) propanol and phosphorus oxychloride; first post-treatment: extracting the product obtained in the step 1) by using an organic solvent, drying and concentrating to obtain 1-(3-chloropropyl)-3-trifluoromethyl benzene; (2) carrying out substitution reaction on the 1-(3-chloropropyl)-3-trifluoromethyl benzene obtained by the first post-treatment and (R)-1-(1-naphthyl) ethylamine; the product obtained in the second step is subjected to extraction, drying and concentration through an organic solvent and then subjected to a salt forming reaction with hydrochloric acid, and cinacalcet hydrochloride is obtained.According to the method, it is guaranteed that the product has the good yield and high purity, meanwhile, the impurity content, especially oxidation impurities, is remarkably reduced, and the appearance color and luster of cinacalcet hydrochloride are effectively improved.

The utility model provides a kind of detection cable for airplane standard interface real bullet ground joint test, belong to electronic equipment test technical field, including discrete signal line group, it is used to detect the signal interaction function of missile;Power line group, it is used to detect the power supply line of various components inside missile;Address line group, it is used to detect and feedback missile detection port insert position;Bandwidth line group, it is used to detect the satellite launch signal function inside missile;Bus line group, it is used to detect the data transmission function inside missile;The utility model can detect each function module of missile without disassembling missile, so as to avoid damage when missile is mounted.

The present application relates to the field of automobile door cover inner and outer plate hemming, in particular to a kind of automobile door cover press bonding special machine and its press bonding method.Automobile door cover press bonding special machine is composed of base frame structure, bottom die system, pressing system, press bonding unit and electrical control system.Pressing system, bottom die system and press bonding unit are all installed on base frame structure, positioning reference is same, dimensional accuracy is high, and respectively connected with electrical control system and controlled.In the whole process, the position of bottom die is fixed, and the process design of pre-press bonding and final press bonding is realized by press bonding unit.Press bonding unit adopts modular design, reduces spare parts type, and each module in press bonding unit can be adjusted installation angle to adapt complex part modeling, each press bonding module acts independently, and stability is high.Pressing system adopts variable frequency motor to drive integral pressing plate to overturn through connecting rod structure, to realize the switching between opening position and pressing position.

The application provides a preparation method and application of a metallocene polypropylene catalyst. The first aspect of the application provides a preparation method of a metallocene polypropylene catalyst, comprising the following steps: subjecting a carrier to a thermal activation treatment to obtain a thermally activated carrier; loading a first cocatalyst on the thermally activated carrier to obtain a thermally activated carrier after loading of the first cocatalyst; preparing a catalyst precursor by using a second cocatalyst, a metallocene compound and an indole compound; and reacting the thermally activated carrier after loading of the first cocatalyst with the catalyst precursor to obtain the metallocene polypropylene catalyst. The preparation method of the metallocene polypropylene catalyst can effectively improve the activity and stereoregularity of the metallocene polypropylene catalyst by adding an electron donor of the indole compound to modify an active center in the preparation process of the metallocene polypropylene catalyst; and meanwhile, the preparation process is simple, and the types of chemical reagents used are few.

The utility model relates to a combined heat exchange device and an air conditioner, and relates to the technical field of heat exchangers. The combined heat exchange device comprises a first heat exchanger and a second heat exchanger, the second heat exchanger is connected with the first heat exchanger through a connecting mechanism; the connecting mechanism comprises a first connecting assembly connected with the first heat exchanger and a second connecting assembly connected with the second heat exchanger, and the first connecting assembly is rotationally connected with the second connecting assembly so as to adjust the assembling angle of the first heat exchanger and the assembling angle of the second heat exchanger. At least one of the first connecting assembly and the second connecting assembly has multiple clamping angles so as to be matched with the corresponding heat exchanger. The transportation difficulty and the positioning difficulty of an assembling site are reduced, the assembling efficiency of the assembling site is improved, the connecting mechanism can be matched with heat exchangers of various shapes, and the manufacturing cost is reduced.

The chassis frame comprises a longitudinal beam assembly, a cross beam assembly and an auxiliary beam assembly, the longitudinal beam assembly comprises a first longitudinal beam and a second longitudinal beam, the first longitudinal beam and the second longitudinal beam are arranged in a spaced mode in the first direction, and the longitudinal beam assembly is provided with a narrowing section and a broadening section in the second direction. The first longitudinal beam and the second longitudinal beam are provided with narrowing sections and broadening sections, the narrowing sections and the broadening sections are in smooth transition through camber beams, the distance between the first longitudinal beam and the second longitudinal beam on the narrowing sections is smaller than that between the broadening sections, and the cross beam assembly comprises a front cross beam and a rear cross beam, and the front cross beam is welded between the first longitudinal beam and the second longitudinal beam and located at the narrowing sections. The front cross beam is welded to the chassis frame, the rear cross beam is welded to the position between the first longitudinal beam and the second longitudinal beam and located at the broadened section, a closed frame is defined by the front cross beam, the rear cross beam, the first longitudinal beam and the second longitudinal beam, the auxiliary beam assembly is welded to the chassis frame and used for providing mounting points for electrical equipment, and the longitudinal beam assembly, the cross beam assembly and the auxiliary beam assembly are all rectangular beams. The chassis frame is few in part types, light in weight and low in production cost.

The invention relates to an adsorption method of an adsorption type unhooking robot, the adsorption type unhooking robot is used for carrying out unhooking operation on a car coupler on a train, the adsorption type unhooking robot comprises a fixing device and an unhooking mechanical arm, and the fixing device comprises a 3-PRS assembly, an adsorption base assembly, a clamping arm assembly, a worm reducer assembly, a controller and a motor lead screw assembly; the 3-PRS assembly is connected to the adsorption base assembly, and the adsorption base assembly is further connected with the worm reducer assembly and the motor lead screw assembly. The clamping arm assembly is connected with the worm reducer assembly, and the motor lead screw assembly is connected with the worm reducer assembly. The adsorption method comprises an adsorption stage and a fixing stage, and in the adsorption stage, the 3-PRS assembly is adsorbed and attached to an adsorbed object on a train under the action of the controller; in the fixing stage, the controller controls the motor lead screw assembly and the worm reducer assembly to act so that the clamping arm assembly can clamp an adsorbed object, the coupler on the train can be removed at the same time, automatic operation can be achieved, and the working efficiency is improved.

This application provides a power module including a transformer and a rectifier circuit. The transformer includes a magnetic core and windings. The rectifier circuit is electrically connected to the windings. The magnetic core further includes: a first cover plate; a second cover plate disposed opposite to the first cover plate; a first magnetic post; and a second magnetic post with a magnetic flux direction opposite to that of the first magnetic post. The first and second magnetic posts are connected between the first and second cover plates. The windings further include: a first winding wound on the first magnetic post; and a second winding wound on the second magnetic post, wherein the first and second windings have a shared winding portion, at least a portion of which is located between the first and second magnetic posts. The rectifier circuit further includes: a plurality of rectifier components, including a first rectifier component, a second rectifier component, a third rectifier component, and a fourth rectifier component electrically connected to form a full-bridge rectifier circuit.

The utility model provides a high pressure glue impregnated paper capacitance type bushing which comprises a bushing body, a plurality of track plates are arranged on the bushing body in a sliding mode, installation blocks are arranged on the track plates in a sliding mode, a plurality of installation holes are formed in the installation blocks, the track plates are jointly connected with a driving gear ring in a rotating mode, and the driving gear ring is connected with the driving gear ring in a rotating mode. The multiple track plates are rotationally connected with driven gears and follow-up gears, belt wheels are arranged on the driven gears and the follow-up gears, the two belt wheels are connected through a transmission belt, the driven gears are connected with the driving gear ring in a meshed mode, and racks connected with the follow-up gears in a meshed mode are fixedly connected to the mounting blocks. According to the high-pressure impregnated paper capacitive bushing provided by the utility model, the radial positions of the plurality of mounting blocks are synchronously adjusted through the driving gear ring, so that the distance and the aperture of the mounting holes can flexibly adapt to equipment flanges of different standards, and the suitability of the mounting of the capacitive bushing is improved.

A foam separation method for harvesting Cr 3+ This method, belonging to the field of heavy metal wastewater treatment, uses the natural nonionic surfactant Sapindus mukorossi extract as a foaming agent and a trapping agent to treat Cr-containing wastewater. 3+ Cr in aqueous solution 3+ Foam separation and harvesting were performed. The critical micelle concentrations of Sapindus mukorossi extract and five other surfactants were determined, and the effects of pH, gas flow rate, liquid loading, collection time, Sapindus mukorossi extract concentration, and Cr were investigated. 3+ The effect of initial concentration on separation efficiency was investigated, and the process was optimized through orthogonal experiments. The results showed that at room temperature, with pH 6.5, gas flow rate 400 mL / min, collection time 4 min, loading volume 300 mL, Sapindus mukorossi extract 0.2 g / L, and chromium sulfate 10 mg / L, Cr... 3+ The recovery rate can reach 71.5%, and the enrichment ratio is 3.9. The foaming agent used in this invention is widely available, easily degradable, and environmentally friendly, and is suitable for low concentrations of Cr. 3+ Separate harvesting.

The utility model relates to the technical field of PIN switches, and particularly discloses a 1G-40G broadband single-pole eight-throw switch, which comprises a plurality of microwave signal input ends, a microwave signal output end, a PIN switch, a plurality of feed circuits and a driving circuit, and is characterized in that the output ends of the feed circuits are respectively connected with the input ends of the PIN switch and the microwave signal input ends; the input end of the feed circuit is connected with the output end of the drive circuit, and the output end of the PIN switch is connected with the microwave signal output end; the driving circuit comprises a driver, a resistor and a capacitor, the input end of the driver is connected with an external control TTL signal, the positive power supply pin of the driver is connected with a positive power supply, the negative power supply pin of the driver is connected with a negative power supply, and the output end of the driver is connected with one end of the resistor and one end of the capacitor. The input end of the feed circuit is connected with the other end of the resistor and the other end of the capacitor. The problems that an existing switch is narrow in coverage frequency, high in cost and slow in switching time are solved.