42results about How to "Close enough" patented technology

The invention discloses a graphene adhesion-enhanced composite conductive structure capable of realizing the enhanced adhesion of graphene to a target substrate, and a preparation method thereof. Thegraphene adhesion-enhanced composite conductive structure comprises a CVD graphene layer, a conductive polymer layer, and a target substrate arranged from top down. The preparation method comprises the steps of: S1, generating a graphene layer on the catalytic substrate; S2, coating a thermoplastic resin I on the surface of the grapheme to form a transition support layer I; S3, continuing to coata thermoplastic resin II on the surface to form a transition support layer II; S4, separating the catalytic substrate to obtain a structure IV; S5, coating the conducting polymer on the target substrate to obtain a structure V; S6, dragging a structure IV from the structure IV from water by the wet process; S7, removing the transition support layer II; and S8, removing the transition support layerI, thereby obtaining the composite structure VII. The graphene adhesion-enhanced composite conductive structure and the preparation method thereof are used to keep the graphene intact and not damaged, and the complete transfer preparation of the large-area graphene may be realized.

The invention aims to provide a lengthened piston mechanism for a visual optical engine device. The lengthened piston mechanism for the visual optical engine device comprises a cylinder cover, a lengthened piston, an original piston and a cylinder body. A lower cover plate is fixed to the cylinder body. A lengthened supporting column is supported between the cylinder cover and the lower cover plate. A quartz cylinder jacket and a metal cylinder jacket are arranged below the cylinder cover in sequence. The upper end of the lengthened piston is located in the metal cylinder jacket, and the lower end of the lengthened piston is connected with the original piston. According to the lengthened piston mechanism for the visual optical engine device, the piston cover and a main part of the lengthened piston are connected through a thread structure, the pretightening force of threaded connection makes the connection surface of the piston cover and a transparent window have sufficient tightness, the problems of poor sealing and air leakage between the transparent window and the pistons are solved, and the compression ratio can be changed by changing the thicknesses of sealing gaskets, so that the measurement requirements under different compression ratio conditions are met; and meanwhile, four gas rings are adopted, and a graphite coating is adopted for a piston ring so that abrasion of the cylinder jackets can be reduced, the portion between the gas rings and the cylinder body is coated with grease, and thus lubricating and sealing effects are achieved effectively.

The invention discloses a detection method for polycyclic aromatic hydrocarbons in edible oil. The method comprises the following steps that the edible oil is added into an extractant, and layered after violent oscillation, and an extraction layer includes a polycyclic aromatic hydrocarbons extract; a precious metal nanometer sol is uniformly mixed with an organic solvent whose density is higher than that of water to form a mixed solution; the polycyclic aromatic hydrocarbons extract is added to the mixed solution, and shocked violently to form a 3D plasma liquid sphere; the above steps are repeated, part volume is removed from the total organic phase slowly by sucking, and the 3D plasma liquid sphere is condensed in-situ; and Raman detection is carried out on the 3D plasma liquid sphere after in-situ condensation. According to the detection method, polycyclic aromatic hydrocarbons can be detected needless of modifying a nanometer material, the method is simple and convenient in operation, and a related device is portable and can be used to detect the polycyclic aromatic hydrocarbons in edible oil onsite.

The invention discloses a method for dispatching a flood gate of a transformer substation, and belongs to the field of electric power engineering and flood control project. The method includes the following steps that a coupling model of a rainfall runoff model, a one-dimensional hydrodynamic model and a two-dimensional hydrodynamic model of an area where the transformer substation is located is established; rainfall forecast data within the preset time are obtained, a time series file is made and input into the rainfall runoff model, the rainfall runoff model serves as the boundary conditionof the one-dimensional hydrodynamic model, and the coupling model operates to obtain a forecast result of the one-dimensional hydrodynamic model for the water level of a flood diversion gate and a forecast result of the two-dimensional hydrodynamic model for the highest flood discharge water level in the transformer substation area; and the forecast results are analyzed, and it is judged that whether the flood gate of the transformer substation needs to be closed or not. According to the method, the possibility of flood occurring in the area where the transformer substation is located is estimated in advance, thus it is ensured that the flood gate of the transformer substation has sufficient time to be closed, and the loss caused by untimely closure of the flood gate is avoided.

The invention relates to a refrigeration device with liquid stored in different layers in a space cold shielding system, which comprises capillary materials, a capillary material bracket, an inlet pipe of secondary diffusion, a discharging pipe of secondary diffusion and a diffuser, wherein, the capillary material bracket is arranged between an outer layer of cold shielding and an inner layer of cold shielding and provided with the capillary materials divided by circular shapes; the capillary material bracket at an upper part of each circular layer is provided with a vent port. The inlet pipe of secondary diffusion is arranged between the capillary material bracket and the inner layer of cold shielding; an outlet of the inlet pipe of secondary diffusion is connected with the diffuser, an outlet of which is connected with the discharging pipe of secondary diffusion; a clearance is kept between the inlet pipe of secondary diffusion and the inner layer of code shielding. The refrigeration device solves the difficult problems of valid storage of refrigerant during the space dynamic refrigeration of variable pressure, temperature and flow, improves the efficiency of space heat transmission, increases the efficiency of space refrigeration with phase change, realizes the relative stability of space refrigeration, and realizes the effective control of temperature on the surface of the space cold shielding system.

The invention relates to a fuel injector (1) comprising an injection nozzle (10), a switching valve (20) and a connecting sleeve (30) that is arranged between the injection nozzle (10) and the switching valve (20), wherein the injection nozzle has a predetermined outer nozzle contour (12) on a longitudinal end section (11) thereof and the switching valve has a predetermined outer valve contour (22) on a longitudinal end section (21) thereof, and wherein the connecting sleeve has a predetermined inner sleeve contour (33) into which, from a first longitudinal end (31) of the connecting sleeve, the injection nozzle fits with the outer nozzle contour thereof in a form-fitting manner such that the injection nozzle is fixed in a defined alignment relative to the connecting sleeve, and into which, from a second longitudinal end (32) of the connecting sleeve, the switching valve fits with the outer valve contour thereof in a form-fitting manner such that the switching valve is fixed in a defined alignment to the connecting sleeve.

A construction method of a cave-imitating decorative surface comprises the steps of 1), molding a structure interior cave clay model; 2), manufacturing the decorative surface, wherein the clay model is coated with a layer of mortar, steel wire gauzes and tied bars are laid in the mortar, the two ends of the tied bars extend into the steel wire gauzes to fasten the steel wire gauzes and the clay model is coated with another layer of mortar after the mortar is initially solidified, or the steel wire gauzes with the tied bars embedded are added into the mortar until the mortar is solidified; 3), binding steel bars and manufacturing side models on the outer side of the mortar according to the design configuration, and then pouring reinforced concrete or steel fiber reinforced concrete to form a concrete structure layer; 4),hollowing the interior clay model after the concrete structure layer is solidified and stabilized and cleaning the inner wall to obtain the cave-imitating decorative surface. According to the invention, the decorative surface and the structure layer are formed at a time, so that the labor hour is saved; the clay model can be manufactured by using local materials and can be recycled, so that environmental friendliness is high and materials are saved.

The invention discloses a novel bipolar battery panel pressing formation device. The novel bipolar battery panel pressing formation device comprises a base plate clamping device, two groups of formingdevices, a blanking device, a remaining material collecting device, a second blanking device and a machine frame; the machine frame is provided with a U groove with an upward opening; the second blanking device is arranged in the U groove; a guide rail in a left-right direction is arranged on each of the front side and the back side of the upper surface of the machine frame; the two groups of forming devices have the same structure and comprise a left forming device and a right forming device; and the left forming device and the right forming device are arranged on the left side and the rightside of the upper surface of the machine frame and can slide left and right along the guide rails. The novel bipolar battery panel pressing formation device is simple in structure, convenient to control and convenient and rapid in operation, can automatically realize blanking work, improves working efficiency, guarantees the forming quality and reduces the labor intensity of workers.

The invention discloses a letter box device which comprises a firm clamping device, compressing devices, a discharging device, a collecting device, a second discharging device and a base. A U-shaped cavity with an upward opening is formed in the base. The second discharging device is installed inside the U-shaped cavity. The front and back sides of the upper surface of the base are each provided with a sliding rail in the left-right direction. The two compressing devices are of the same structure and are the left compressing device and the right compressing device. The left and right compressing devices are installed on the sliding rails on the left and right sides of the upper surface of the base respectively and can slide left and right along the sliding rails. The letter box device is simple in structure, convenient to control, convenient to operate and capable of automatically achieving discharging, improving the working efficiency, ensuring the molding quality and meanwhile lowering the labor intensity of workers.

The invention discloses a novel new energy automobile device. The novel new energy automobile device comprises a clamping and fixing device, two groups of extruding devices, an unloading device, a storage device, a second unloading device and a base frame; the base frame is provided with a U-shaped groove with an upward mouth part; the second unloading device is arranged in the U-shaped groove; arail in a left-right direction is arranged on each of the front side and the back side of the upper surface of the base frame; the two groups of extruding devices have the same structure and comprisea left extruding device and a right extruding device; and the left extruding device and the right extruding device are arranged on the rails on the left side and the right side of the upper surface ofthe base frame correspondingly and can slide along the rails left and right. The novel new energy automobile device is simple in structure, convenient to control and convenient and rapid in operation, and can automatically realize feeding work, improve working efficiency, guarantee forming quality and reduce the labor intensity of workers.

The purpose of the invention is to cause an arm (41) and a work tool to be brought sufficiently near a boom (31) regardless of the boom (31) orientation. A work machine (1) comprises a control device(60) that sets a stroke range for an arm cylinder (42) to the side in which the arm (41) approaches the boom (31) when the boom (31) is turned in a direction away from a boom reference position (S1) depending on the boom (31) turning position such that the shortest trajectory distance (L2), which is the shortest distance between a turning trajectory (M3) of the distal end of a bucket (51) and a boom cylinder (32), is kept to a prescribed value even if the boom (31) turning position changes.

The invention discloses improved letter box equipment. The improved letter box equipment comprises a clamping device, pressing devices, a discharging device, a collecting device, a second dischargingdevice and a base; the base is provided with a U-shaped cavity with a cavity opening being upward; the second discharging device is installed in the U-shaped cavity; the front side and the rear side of the upper surface of the base are each provided with a sliding rail in the horizontal direction; and the two pressing devices are of the same structure, the left pressing device is installed on thesliding rail on the left side of the upper surface of the base and can slide left and right along the sliding rail, and the right pressing device is installed on the sliding rail on the right side ofthe upper surface of the base and can slide left and right along the sliding rail. The improved letter box equipment is simple in structure, convenient to control and convenient and fast to operate, the discharging work can be achieved automatically, the working efficiency is improved, the forming quality is ensured, and meanwhile the labor intensity of workers is relieved.

The invention discloses building decorative environment-friendly board equipment. The building decorative environment-friendly board equipment comprises a clamping device, two groups of compacting devices, an unloading device, a collecting device, a second unloading device and a seat body, wherein a U-shaped hole with an upward opening end is formed in the seat body; the second unloading device is mounted in the U-shaped hole; the front side and the rear side of the upper surface of the seat body are each equipped with a guide connecting rail in the horizontal direction; the two groups of compacting devices which are the same in structure comprise left compacting devices and right compacting devices; and the left compacting devices and the right compacting devices are separately mounted on the guide connecting rails at the left side and the right side of the upper surface of the seat body, and can slide left and right along the guide connecting rails. The building decorative environment-friendly board equipment is simple in structure, is convenient in control, is convenient to operate, can automatically realize unloading work, improves working efficiency, guarantees forming quality and reduces labor intensity of a worker.

The invention discloses a mobile mining flameproof and intrinsically safe control box, and belongs to the technical field of mining control equipment. The control box comprises two oppositely mounted shells, an erecting table fixedly connected to the peripheral outer walls of the shells and a central control box arranged in the shells, and a mobile assembly is fixedly connected to the outer wall of one side of the erecting table. A buffer assembly comprises a fixed sleeve fixedly connected to the inner wall of the top of the shell and an inner connecting sleeve fixedly connected to the outer wall of the top of the fixed sleeve, the inner connecting sleeve and the inner wall of the fixed sleeve are slidably connected with an inner cylinder, sliding grooves are formed in the inner wall of the periphery of the fixed sleeve, and springback rods are fixedly connected to the inner walls of the tops of the sliding grooves. By arranging the buffer assembly, a high-temperature and high-pressure gas in the inner connecting sleeve and the shell can be treated, meanwhile, the space in the shell is extended and expanded by means of movement of the inner cylinder, the gas pressure is reduced, and the inner cylinder is slidably connected to the inner wall of the inner connecting sleeve so that the shell keeps sufficient sealing performance.