709 results about "Isosceles trapezoid" patented technology

The invention provides a solar synchronous orbit quick response SAR satellite load platform integrated configuration, which comprises a satellite body, an SAR antenna, a solar array, a phased array data transmission antenna, a star sensor and a body-mounted solar cell, the satellite body is in a quadrangular prism shape, the cross section of the satellite body is an isosceles trapezoid, the satellite body comprises a group of opposite parallel surfaces and a group of opposite inclined surfaces, the phased array data transmission antenna and the star sensor are respectively arranged on two parallel surfaces, and the SAR antenna and the solar array are respectively arranged on two inclined surfaces; the body-mounted solar cell piece and the solar array are installed on the same inclined plane and located on the inner side of the solar array, and the solar array comprises two solar array plates and has an unfolded state and a folded state. According to the method, load platform integration is taken as a design thought, so that the AIT process of the SAR satellite and the time required by AIT are greatly shortened; meanwhile, the attitude requirements of energy and load work are met, and the reliability of the initial injection stage is improved through sufficient energy.

The invention discloses an asymmetric extrusion preparation method for a heterogeneous magnesium alloy composite board with an adjustable layer thickness ratio. The method comprises the steps that an asymmetric extrusion die with an extrusion outlet deviating from the center is designed, and an extrusion deformation section is of a triangular section in the thickness direction and of an isosceles trapezoid section in the width direction; a VK41 magnesium alloy, a ZK61 alloy and pure magnesium are machined into blanks with the thicknesses of A, B and C, the blanks are combined according to the EZP sequence after homogenization treatment, the blanks are heated to 350-400 DEG C, heat preservation is conducted, and the extrusion speed is 1-2 mm / s; extruding by adopting an asymmetric die, and placing pure magnesium on the alpha angle side to obtain a three-layer composite board; and carrying out folding or V-shaped bending test on the processed sample. By regulating and controlling the ratio of A: B: C and the extrusion shrinkage angle, accurately controlling the layer thickness ratio, introducing shear strain to improve the texture, coordinating the tension and compression asymmetry and remarkably improving the bending performance, the process is simple, and the method is suitable for industrial production and is suitable for the fields of aerospace, automobiles and the like.

The invention discloses a steer-by-wire system, an endpoint limiting device of a road feeling simulator of the steer-by-wire system, a control method and a vehicle, and belongs to the technical field of steer-by-wire, the steer-by-wire system comprises a fixing frame of a hollow structure, and a first through hole and a second through hole are formed in the top surface and the bottom surface of the fixing frame respectively; the limiting nut is arranged in the fixing frame, a threaded hole of the limiting nut is opposite to the first through hole and the second through hole, and a vertical limiting groove penetrating through the top face and the bottom face of the limiting nut is formed in the peripheral face of the limiting nut; the limiting column is located in the limiting groove, the two ends of the limiting column are fixedly connected with the fixing frame, and the limiting nut is slidably connected with the limiting column; the two limiting blocks are symmetrically arranged on the two sides of the limiting nut respectively, the side faces, close to the limiting nut, of the limiting blocks are in a concave isosceles trapezoid shape, the two opposite ends of the limiting nut are located between the upper inclined face parts and the lower inclined face parts of the two limiting blocks respectively, and the limiting blocks are slidably connected with the fixing frame; the driving assembly is used for driving the limiting block to move. The limiting effect is improved, and the cost is reduced.

The application discloses an asymmetric ring electrode cap, discards the traditional two-side uniform spherical electrode design, and adopts an asymmetric ring electrode structure, specifically, the welding end face diameter of a thin plate side electrode cap is 6-14 mm, the curvature radius is 40-100 mm, three rings are arranged, the inner ring is provided with a conical pit, and the middle ring is in the shape of an isosceles trapezoid; the welding end face diameter of a thick plate side electrode cap is not less than that of the thin plate side and not more than 14 mm, the curvature radius is not less than that of the thin plate side and not more than 100 mm, three rings are also arranged, the inner ring is provided with a conical pit, and the middle ring is in the shape of an equilateral triangle. The ring structure parameters of the two electrode caps are accurately designed to adapt to the welding requirements of plates with different thicknesses, and the welding quality and efficiency are improved. The application is particularly suitable for resistance spot welding of materials such as aluminum workpieces with large thickness ratios.

The invention provides a high-transmittance peep-proof film and a preparation method thereof.The peep-proof film comprises a substrate layer, a light-transmitting layer, a peep-proof layer and an antireflection film layer which are sequentially arranged from bottom to top, the light-transmitting layer comprises a light-transmitting base layer, a plurality of isosceles-trapezoid-shaped first protrusions are periodically distributed on the light-transmitting base layer at intervals, the peep-proof layer comprises a peep-proof base layer, and the antireflection film layer is arranged between the first protrusions and the peep-proof base layer. The peep-proof base layer is provided with a plurality of second protrusions in an isosceles trapezoid shape at intervals periodically, each second protrusion is located between every two adjacent first protrusions, the distance between every two adjacent first protrusions is matched with the lower bottom faces of the second protrusions, and the side faces, connected with the second protrusions, of the first protrusions are further provided with reflecting layers. By arranging the reflecting layer, scattering and absorption of light rays are effectively reduced, reflection of the light rays on the surface of the peep-proof film is reduced by arranging the antireflection film layer, the peep-proof film has high light transmittance, side light rays can be effectively blocked by arranging the periodic second protrusions on the peep-proof layer, and secrecy of images is protected.

The invention relates to the technical field of submerged arc welding equipment, in particular to an automatic submerged arc welding unit which comprises a cover with the section of an isosceles trapezoid structure, the cover at least comprises a horizontal plate and elastic inclined plates located on the two sides of the horizontal plate, and the included angle between the horizontal plate and the elastic inclined plates is adjustable. And the scaling powder stacked on the groove of the workpiece to be welded is shaped. According to the submerged-arc automatic welding unit, the inner space of the cover has the capacity of evenly placing the scaling powder, when the scaling powder is scattered all around, the elastic inclined plate buffers and absorbs impact force, scaling powder escape is reduced, and the scaling powder is stably isolated in the welding process; and the grid plate pokes the scaling powder in front of welding operation aside, most of splashing slag is conveyed away from the position above a groove to be welded, welding interference generated when a rear welding head passes through is reduced, the welding process is more stable, and the safety influence on workers is weakened.

The utility model discloses a prism structure, a visual angle expanding film, a backlight module and a display device, and relates to the technical field of optical films. The prism structure comprises a plurality of first prism parts and a plurality of second prism parts, the top of the second prism part is connected with the bottoms of the first prism parts; wherein the cross sections of the first prism parts are isosceles right triangles, the cross sections of the second prism parts are isosceles trapezoids, and the top width of the second prism parts is the total bottom width of the first prism parts. According to the utility model, the problems that the 1 / 2 light intensity range in the horizontal direction of a general display is within + / -50 degrees, and the 1 / 2 light intensity range in the vertical direction of the general display is within + / -35 degrees due to a single prism sheet, or a diffusion film and prism sheet bonding (DOP) / micro lens film and prism sheet bonding (MOP) and other structures with single prism layers in the current brightness enhancement film technology are solved; if a double-layer prism framework optical film scheme is used, the 1 / 2 light intensity range in the horizontal direction and the 1 / 2 light intensity range in the vertical direction are both lower than + / -35 degrees.

The invention provides an auxiliary structure for beach and shallow sea ecological restoration and a restoration system construction method, and belongs to the technical field of water conservancy projects for beach and shallow sea ecological restoration. The auxiliary structure comprises a combined type permeable submerged dike structure, a natural wave dissipation combined pile body and an oyster cultivation net-shaped structure. The combined type permeable submerged dike structure comprises hexagonal hollow prisms and isosceles trapezoid hollow prisms, the two prisms are of a staggered and stacked structure, and a natural shelter is provided for small marine organisms. The natural wave dissipation combined pile bodies penetrate through the combined type permeable submerged dike structure through the upper holes and the lower holes of the prisms, and the combined type permeable submerged dike structure is effectively supported and fixed. The oyster cultivation net-shaped structure is fixed to the natural wave dissipation combined pile body, and the design of the net-shaped structure meets the filter feeding environment of oyster cultivation. The repairing system is correspondingly designed based on an auxiliary structure and a field environment. The structure is simple, raw materials are easy to obtain, the protection engineering and the oyster reef body are organically combined, ecological environmental protection is achieved, and follow-up manual treatment is not needed.

The present invention discloses a quartz substrate lithium niobate mode spot converter, which relates to the fields of optical communication and microwave photonics. The present invention includes a quartz substrate layer, a silica cladding layer, a lithium niobate waveguide layer, an oxide interlayer and an oxide upper cladding layer. The lithium niobate waveguide layer is a three-layer stepped structure, and the cross-sections of the fiber coupling ends of the three-layer lithium niobate waveguide layers are all isosceles trapezoids. The cross-sections of the fiber coupling ends of the oxide interlayer and the oxide upper cladding layer are both provided with notches at the lower part and isosceles trapezoidal protrusions at the upper part, and the oblique side angles of the isosceles trapezoidal protrusions of the oxide interlayer and the oxide upper cladding layer and the isosceles trapezoidal cross-sections of the lithium niobate waveguide layer do not exceed 70°. The present invention can achieve high coupling and low transmission loss when optical signals are coupled between an integrated lithium niobate photonic chip and an optical fiber, and reduces the process processing difficulty, and has high practicability.

The invention relates to a reconfigurable metasurface analog calculator based on a lithium niobate film. The reconfigurable metasurface analog calculator comprises a substrate and a lithium niobate unit, the plurality of lithium niobate units are periodically arranged on the substrate to form a metasurface structure, and the cross section of each lithium niobate unit is an isosceles trapezoid; incident light vertically enters the metasurface structure, and the transmission coefficient and phase distribution of the metasurface structure are changed by changing external bias voltage applied to the lithium niobate units, so that conversion and reconstruction of a mathematical operation function are realized; the mathematical operation comprises first-order differential operation, second-order differential operation and integral operation. According to the invention, different external bias voltages are applied to the periodically arranged lithium niobate units, so that the transmission coefficient and phase distribution of incident light by the metasurface structure can be accurately regulated and controlled, and the same metasurface device can be flexibly switched among different mathematical operation functions such as first-order differential, second-order differential and integral. And various calculation functions can be realized without changing a physical structure.

The invention discloses a novel mold structure of a dry-type transformer pouring coil with multiple layers of air passages and a using method, and belongs to the technical field of dry-type transformer manufacturing. The mold comprises a base, an upper fixing plate, a lower fixing plate, an inner mold plate, an outer mold plate and an air channel plate, the inner mold plate is provided with a first air channel area and a third air channel area which are in radial symmetry and a second air channel area which is in linear symmetry, and a three-dimensional air flow network is formed by matching with air channel holes of an outer mold plate; the isosceles trapezoid air channel strips are inserted into the air channel grooves in a layered mode and fixed to a coil insulating layer through glass wool cloth, and the heat dissipation efficiency is improved. When in use, the die is connected with a square shaft of a winding machine to realize automatic winding, the air passage strips are placed layer by layer, and the airflow smoothness is detected. Compared with a traditional layer type air channel, the structure has the advantages that the heat dissipation efficiency is improved, the temperature rise is reduced, modular assembly is achieved, gaps are flexibly adjusted, the structure is suitable for coils of different specifications, the production efficiency is improved, and the cost is reduced.

The invention belongs to the technical field of electric power fittings, and particularly relates to an NXJG wedge-type strain clamp which comprises a wedge-type clamp body and two sets of wedge blocks buckled with each other, the wedge-type clamp body wraps the two sets of wedge blocks, the wedge blocks and the wedge-type clamp body are arranged in a relative sliding mode, a wire clamping hole is formed between the wedge blocks, and the wedge-type clamp body is arranged in the wire clamping hole. The cross section of the wedge-shaped wire clamp body is U-shaped, the opening end of the wedge-shaped wire clamp body is slidably connected with a wedge block, the wedge block is arranged on two groups of wedge blocks, and the wedge block is arranged in an isosceles trapezoid structure; according to the utility model, through the two groups of mutually buckled wedge blocks and the slidable wedge blocks, by using the principle of a wedge-shaped structure, a strong clamping force can be generated, a wire is firmly fixed in the wire clamping hole, the design can effectively prevent the wire from slipping or falling off under the influence of various environmental factors, and the safety and stability of power transmission are greatly improved.

The present invention relates to the technical field of automotive battery pack trays, and particularly relates to a fixing tray for a new energy vehicle battery pack; it includes a frame; the frame is composed of four side frames in an isosceles trapezoid structure, and the four side frames are butt-jointed and combined through a limiting mechanism and then welded and fixed. A U-shaped frame is fixedly installed at the rear end of the side frame located at the rear side. The U-shaped frame and the lower end of the frame are jointly welded and fixed with a bottom plate. A fixing mechanism for fixing the battery pack is arranged inside the frame; the fixing mechanism provided by the present invention performs primary reinforcement on the frame formed by the combination of the side frames, and then performs secondary reinforcement on the frame formed by the combination of the side frames through a locking portion to improve the structural strength of the frame formed by the combination of the side frames. The battery pack is squeezed and fixed through the limiting mechanism, and the limiting mechanism is kept in a fixed state for the battery pack through the locking portion to improve the stability of the battery pack.

The invention provides a Halbach array with a double-layer structure. The structure can be divided into an upper layer and a lower layer; the upper layer is a rectangular permanent magnet array, and every four permanent magnet arrays are periodically arranged in a group from left to right along the horizontal direction according to the upper, right, lower and left magnetizing directions; the permanent magnets magnetized up and down are main permanent magnets, the permanent magnets magnetized left and right are secondary permanent magnets, the heights of all the rectangular permanent magnets are equal, the widths of the main permanent magnets are kept consistent, and the secondary permanent magnets are in the same way; the lower layer is a trapezoidal permanent magnet array, the shape is an isosceles trapezoid, the width of the upper bottom is the same as that of the rectangle, regular trapezoids and inverted trapezoids are arranged in a staggered mode in the horizontal direction, the trapezoids and the rectangles are in one-to-one correspondence, and the magnetizing direction is consistent with that of the rectangle in the upper layer; the heights of all the trapezoidal permanent magnets are equal, the sizes of the main permanent magnets are consistent, and the secondary permanent magnets are similar; the shape of the trapezoid main permanent magnet is not limited to be a regular trapezoid or an inverted trapezoid. The double-layer structure permanent magnet array is symmetrically and periodically distributed.

The invention provides a multi-tower one-machine photo-thermal power generation system which is composed of five tower type heat collection systems, heat absorption towers in the five tower type heat collection systems are arranged in an isosceles trapezoid mode, and the heat absorption towers in the first tower type heat collection system, the second tower type heat collection system, the third tower type heat collection system, the fourth tower type heat collection system and the fourth tower type heat collection system are located at the four vertex positions of the isosceles trapezoid respectively. A heat absorption tower in the fifth tower type heat collection system is located at the midpoint position of the bottom edge of the isosceles trapezoid, and the first tower type heat collection system, the second tower type heat collection system, the third tower type heat collection system and the fourth tower type heat collection system are each composed of a heat absorption tower and a heliostat field. The fifth tower type heat collection system is composed of a heat absorption tower, a heliostat field, a steam generation system, a steam turbine generator set, a hot salt tank and a cold salt tank. The heat absorption tower is arranged on the south side of the center of a heliostat field; through the overall optimization of the layout of the multi-tower one-machine photo-thermal power generation system and the design of the pipeline length and the pipeline nominal diameter, the power generation efficiency of the whole multi-tower one-machine photo-thermal power generation system can be effectively improved, and the multi-tower one-machine photo-thermal power generation system always keeps high-efficiency operation; and meanwhile, the construction cost of the multi-tower one-machine photo-thermal power generation system can be effectively reduced.

The present invention discloses a high-efficiency malt destoning machine with circulating air, comprising: an operating box with a screen bed fixedly installed therein; an elastic support mechanism and a vibration mechanism mounted on opposite sides of the operating box so as to be suspended in the air; and an air supply system for blowing air into the operating box, wherein the screen bed comprises a first screen body arranged horizontally to receive falling materials; the first screen body comprises a first screen plate arranged at intervals in the horizontal direction, and two second screen plates arranged in the intervals and combined to form a tower-shaped structure, wherein the plurality of groups of first and second screen plates constitute a screen surface. The high-efficiency malt destoning machine with circulating air provided by the invention has a simple structure, and utilizes a plurality of groups of the second screen plates arranged in a tower-shaped structure so that the intervals between the two second screen plates do not lie within the intervals between the first screen plates arranged at intervals. The combination of the two second screen plates and the first screen plate forms a bucket-shaped structure with an inverted isosceles trapezoidal structure, which ensures the screening efficiency of the primary screening while intercepting stones larger than the malt specifications.

The invention relates to the consumer goods industry, and more particularly to packaging means. An octagonal food container with a divider comprises a receptacle and a lid. The receptacle has an octagonal base with a divider in the form of a ridge. Opposing sides of the base of the receptacle form pairs in which the sides have the same length and are parallel to one another. The side surfaces of the receptacle are in the form of four pairs of isosceles trapezoids, the smaller bases of which are connected to the base of the receptacle. The larger bases of the trapezoids of the receptacle are connected to a horizontal ledge of the receptacle, the outer edge of which is bent downwards The divider connects the larger lateral sides of the receptacle. The lid has along its edges a horizontal ledge corresponding to the ledge of the receptacle, the outer edge of which is bent downwards. The lid is provided with a lock in the form of depressions on each side of the lid for connecting the lid to the receptacle. The technical result is an increase in the rigidity of the container closed with the lid.

The invention relates to the technical field of adsorption grabbing, in particular to a grabbing mechanism based on vacuum adsorption. The grabbing mechanism based on vacuum adsorption comprises a fixing frame, a moving groove is formed in the lower side of the inner wall of the fixing frame, clamping blocks used for grabbing materials are slidably connected to the two sides of the inner wall of the moving groove, and a telescopic cylinder is fixedly connected to the top of the fixing frame. The telescopic rod drives the long strip to move up and down, isosceles trapezoid connecting blocks on the two sides of the long strip are in sliding fit with isosceles trapezoid long grooves in moving blocks, the moving blocks are of right trapezoid structures, and when the long strip moves upwards, the two moving blocks can be driven to synchronously get close to each other along the moving grooves. When the long strip moves downwards, the moving block is made to be away from the moving groove in the reverse direction, the limiting strip of the moving block is matched with the limiting groove of the moving groove to prevent deviation, then the distance between the clamping strips can be flexibly changed by adjusting the stroke of the telescopic cylinder, and therefore the clamping device adapts to materials of different widths and sizes, rapid clamping of the materials is achieved, and the production efficiency of the materials is guaranteed.

The present invention discloses a multi-output crystalline silicon solar cell structure, comprising a plurality of structural units arranged side by side on a substrate. Each structural unit comprises a multi-layer power generation structure composed of a plurality of independent low-power power generation units stacked together. Adjacent low-power power generation units are insulated from each other by an insulating layer. The width of the multiple low-power power generation units and the insulating layer gradually decreases from bottom to top, so that the cross-section of each structural unit is an isosceles trapezoid with a narrow top and a wide bottom. Each low-power power generation unit is provided with a set of output ports. A focusing baffle is provided between adjacent structural units. The focusing baffle is composed of a plano-convex lens area, a buffer area, and a support area, from top to bottom. The focusing baffle is embedded between adjacent structural units through the support area, and is used to focus incident light between the two adjacent structural units for multiple reflection. The battery is easy to use and can provide electricity for small and micro-power applications without cutting the battery chip.

The utility model relates to the field of escape pipeline, especially escape pipeline. Including escape pipeline body and pipeline transfer assembly, pipeline transfer assembly is located at both ends of escape pipeline body, and pipeline transfer assembly includes two air cylinders and four steel sheets, and the air cylinder is fixed on the outer wall of escape pipeline body, and the output end of air cylinder is fixedly connected with the adjusting plate, the section of adjusting plate is isosceles trapezoid, and the two oblique waist sides of adjusting plate are all provided with slide hole, and the inner wall of slide hole is slidably connected with sliding plate, and the side of sliding plate is fixedly connected with the plug rod, and the section of plug rod is rectangle, and the side of four steel pipes is all fixedly connected with the fixed plate. The utility model provides an escape pipeline with the advantages that the escape pipeline can be conveniently transported to different positions according to the use requirement, the mobility and deployment efficiency of escape pipeline are improved, and the escape pipeline can be conveniently disassembled and assembled.

The application discloses a compact dielectric resonator antenna module, which comprises a substrate assembly and a dielectric resonator arranged on the substrate assembly. The dielectric resonator comprises a connecting part and four isosceles trapezoidal columns. The height of the connecting part is less than the height of the isosceles trapezoidal columns. The four isosceles trapezoidal columns are evenly distributed around the connecting part. The short bottom surface of the isosceles trapezoidal column is connected with the connecting part. The long bottom surface of the isosceles trapezoidal column has a compensation part extending away from the connecting part. The connecting part, the isosceles trapezoidal column and the compensation part are integrally formed into an integrated structure. The dielectric resonator antenna module has a compact structure and a small overall volume. The dielectric resonator only needs to be installed once as a whole, thereby reducing the alignment error generated in the installation process and facilitating the guarantee of the antenna performance. The height difference between the connecting part and the isosceles trapezoidal column in the height direction achieves a decoupling effect to some extent, thereby reducing the coupling between the isosceles trapezoidal columns. The dielectric resonator antenna module can cover the N258 frequency band in 5G.

The utility model provides a fly cutter holder of a long material flaking machine, which relates to the field of fly cutter holders and comprises a main body unit, the main body unit comprises a cutter holder body, the top of the cutter holder body is provided with a through groove, and an inner cavity of the through groove is detachably connected with a fly cutter body; the tool apron body is an installation foundation of the fly cutter, the through groove is used for inserting and fixing the fly cutter body, the inner wall of the through groove does not affect angle adjustment of the fly cutter body due to the fact that the side view shape of the through groove is the isosceles trapezoid, and the installation frame is used for further fixing and supporting the fly cutter body to ensure stability of the fly cutter body in the cutting process. The threaded column is in threaded connection with the threaded plate, front-back adjustment of the position of the mounting frame is achieved, and therefore the rotating shaft is matched to adjust the cutting angle of the fly cutter body, the purpose of reducing resistance in the cutting process is achieved, the thickness, the uniformity and the surface smoothness of wood shavings can be controlled, and the wood shaving quality is improved.

The utility model discloses a variable cross-section movable arm and a wheel excavator. The variable cross-section movable arm comprises an arm wrist, an arm body and an arm head, one end of the arm body is connected with the arm head, the arm wrist is used for connecting the variable-cross-section movable arm and a rotary platform of the excavator, the arm head is used for connecting an excavating assembly of the excavator, a variable-cross-section connecting end is arranged at the end, away from the arm head, of the arm body, and the variable-cross-section connecting end is connected with the arm wrist. Part of the arm wrist is convexly arranged at the variable cross-section connecting end; the width of the variable cross-section connecting end is gradually increased towards the direction of the arm wrist, the variable cross-section connecting end is in an isosceles trapezoid shape, and the variable cross-section connecting end and the arm body are integrally formed and connected. The variable cross-section connecting end with the width gradually increased is formed at the end of the arm body in a bending mode, so that the variable cross-section connecting end is in an isosceles trapezoid shape, the torque bearing capacity of the variable cross-section movable arm wrist is improved, the connecting stability and strength are improved, the service life is prolonged, and the safety risk is reduced.

The invention relates to the technical field of stainless steel materials, in particular to a high-precision stainless steel structure easy to machine. According to the technical scheme, the device comprises a cuboid-shaped first main body matching column, a second main body matching column which is integrally formed and identical in length is arranged at the lower end of the first main body matching column, and the projection of the second main body matching column in the front-back direction is of an isosceles trapezoid structure; the width of the upper end of the second main body matching column is the same as that of the first main body matching column, a cylindrical center matching connecting hole penetrating through the whole front-back direction is formed in the front face of the first main body matching column, and a combined connecting matching groove penetrating through the whole front-back direction is formed in the front face of the second main body matching column. The machining tool has the advantages that material waste can be effectively reduced during later machining, the machining precision is improved, and when structures such as fastening holes are machined, the machining tool can be matched with a precise positioning groove for positioning and matching during machining.

The utility model discloses a multi-bin paper-based micro-fluidic chip for visual detection of bacterial drug resistance. The multi-bin paper-based micro-fluidic chip comprises a hydrophilic paper base, the detection mechanism is a hydrophilic channel established on the hydrophilic paper base; the detection mechanism comprises a sample adding bin and an anti-overflow bin, and the appearance of the anti-overflow bin is circular; one end of the anti-overflow channel is communicated with the sample adding bin, and the other end of the anti-overflow channel is communicated with the anti-overflow bin; the appearance of each reaction bin is an isosceles trapezoid; the plurality of reaction bins are uniformly distributed in a fan shape by taking the circle center of the sample adding bin as a central original point; one end of each diffusion channel is communicated with the reaction bin, and the other end of each diffusion channel is communicated with the sample adding bin; wherein the diffusion channels and the reaction bins are arranged in a one-to-one correspondence manner; the hydrophobic barrier structure is a hydrophobic area formed on the hydrophilic paper base through wax spraying printing along the outer edge of the detection mechanism. According to the multi-bin paper-based micro-fluidic chip for visual detection of bacterial drug resistance, provided by the utility model, rapid, high-throughput and low-cost detection of multiple bacterial drug resistance can be realized.

The utility model discloses a hexagonal double-frustum high-quality product packaging box which comprises a lower box body, a lower box body and a lower box body, an upper box body; and a magnetic component. When the box is used, the upper box body is turned upwards, and then objects filled in the cavity can be taken off; when the upper box body is turned downwards, the upper box body and the lower box body are fixed through the magnetic attraction assembly, the upper cavity and the lower cavity are spliced to form a storage cavity, and therefore the storage space of the product is increased; the lower box body is in the shape of a lower hexagonal frustum formed by a regular hexagonal box bottom wall and six isosceles trapezoid lower peripheral walls which are inclined downwards, the upper box body is in the shape of an upper hexagonal frustum formed by a regular hexagonal box top wall and six isosceles trapezoid upper peripheral walls which are inclined upwards, and in the closed state, the upper box body is in the shape of a lower hexagonal frustum; according to the packaging box, the whole packaging box is in a vertically-symmetrical hexagonal double-frustum shape, the purposes of being novel and unique in design and avoiding the monotonous and stiff structure of the packaging box are achieved, in addition, by means of the magnetic attraction assembly, the convenience of opening and closing of the box is improved, and the additional value of a product can be improved.

The utility model relates to the technical field of stainless steel materials, in particular to a high-precision stainless steel structure easy to machine. According to the technical scheme, the device comprises a cuboid-shaped first main body matching column, a second main body matching column which is integrally formed and identical in length is arranged at the lower end of the first main body matching column, and the projection of the second main body matching column in the front-back direction is of an isosceles trapezoid structure. The width of the upper end of the second main body matching column is the same as that of the first main body matching column, a cylindrical center matching connecting hole penetrating through the whole front-back direction is formed in the front face of the first main body matching column, and a combined connecting matching groove penetrating through the whole front-back direction is formed in the front face of the second main body matching column. The fixture has the advantages that waste of materials can be effectively reduced during later machining, machining precision is improved, and the fixture can be matched with a precise positioning groove for positioning and matching during machining when structures such as fastening holes are machined.

The lamp structure with the external power source comprises a lamp shell, a light source plate and a light-transmitting panel, the section of the lamp shell is an isosceles trapezoid shell, and an isosceles trapezoid lamp cavity with an opening in the bottom face is formed in the isosceles trapezoid shell; a C-shaped clamping groove is formed in the middle of one inner wall of the isosceles trapezoid lamp cavity, and a clamping groove is formed in the lower portion of the other inner wall of the isosceles trapezoid lamp cavity. A light reflecting plate is arranged in the isosceles trapezoid lamp cavity, one side of the light reflecting plate is inserted into the C-shaped clamping groove, and the other side of the light reflecting plate is inserted into the clamping groove; the light source plate is attached to the inner wall of the isosceles trapezoid lamp cavity; the symmetrical edges of the light-transmitting panel are inserted into the mounting strip-shaped grooves for positioning; light of the light source plate is reflected by the light reflecting plate and irradiates from the light-transmitting panel. The LED lamp is reasonable in structural arrangement, light of the light source plate is reflected by the reflecting plate and irradiates outwards from the light-transmitting panel, the situation that local light is too bright is avoided, the uniformity of illumination light is improved, the heat conduction and heat dissipation performance is improved, the use stability and reliability of the light source plate are improved, and the service life of the light source plate is prolonged.