65results about How to "Reasonable spacing" patented technology

The invention provides a left-turn violation detection system at a vehicle intersection. The intersection has an intersection stop line and a road yellow line and comprises a plurality of annular coils that are embedded on roads and parallel to each other for inducing the triggering state of vehicles, a processing module for receiving the triggering state and determining whether the vehicle violates the regulation or not according to the triggering state, and a camera for photographing images. The annular coils provided by the invention have reasonable width and space from small to big. The vehicles are not neglected with a plurality of driving lines available for violated left-turn vehicles, and interference is filtered by a logical algorithm, thereby photographing by mistake caused by triggering coils by vehicles in normal traffic and vehicles from other directions can be avoided.

The invention provides a belt type precise seeding-metering device which comprises a seed taking device, a seed cleaning hairbrush, a driving belt wheel, a sealing hairbrush, a seed guiding pipe and a seed box. The device is characterized in that a partition plate is added, and the seed box is longitudinally spaced into a large seed box and a small seed box which are communicated through lower parts; the bottom of the small seed box is provided with a rectangular opening, and the sealing hairbrush is horizontally blocked on the rectangular opening; the rear wall of the small seed box, away from the large seed box, is an inclined plane, and the bottom of the rear wall is upwards provided with a long and narrow rectangular opening; the seed taking device is positioned on the rear part of the small seed box and comprises a driving wheel, a driven wheel and a flat belt with a seed taking scoop; the axial line of the driven wheel is parallel and level to the bottom of the small seed box, and the flat belt is blocked on the long and narrow rectangular opening and in tangential contact with the sealing hairbrush; the highest operation position of the seed taking scoop is lower than the upper end of the long and narrow rectangular opening; the seed cleaning hairbrush is cylindrical and positioned in the small seed box, and the excircle surface of the seed cleaning hairbrush is tangential with the flat belt; and an opening of the seed guiding pipe is positioned right below the seed taking scoop when the seed taking scoop turns. The device has high sowing precision, less breakage and convenient seed filling.

The invention relates to the field of signal processing and control of medical equipment, in particular to a method and a device for automatically configuring electrocardiographic wave data. The technical scheme provided by the invention is that according to the factors of system settings of the equipment, the amplitude of electrocardiographic waves and the like, the gain and the baseline position are regulated, and the electrocardiographic waves are intelligently configured so that the spacing between leads of the electrocardiographic waves is reasonable, the leads are orderly arranged, the waves are avoided being overlapped, the problems that part of the waves are overlapped, part of the waves are separated at a long distance and the like are avoided, and the method and the device are beneficial to the observation of a doctor and are convenient for the subsequent processing.

The invention belongs to the field of equipment for measuring human body impedance and particularly relates to a flexible electrode for measuring muscle impedance and a preparation method thereof. The flexible electrode for measuring muscle impedance comprises an insulating flexible substrate, at least one pair of exciting electrode plates, at least one pair of measuring electrode plates, surface modification layers, metal leads, metal lead connectors and a polymer protective film. The exciting electrode plates and the measuring electrode plates are arranged to form an electrode array, the electrode array, the metal leads and the metal lead connectors are arranged on the insulating flexible substrate, the surface modification layers cover all the electrode plates, and the face, provided with the electrode array, of the insulating flexible substrate is covered with the polymer protective film. According to the electrode, measuring errors caused by contact interface impedance can be effectively reduced through the insulating flexible substrate and the interface modification layers, no wound or pain is generated, operation is easy and convenient, repeatability is achieved, and the electrode is suitable for being popularized.

The invention discloses an integral casting process for a reinforced concrete wastewater tank in predrilling engineering. The integral casting process comprises the following steps of a, construction of a foundation and a bedding layer, digging a foundation pit, and casting the concrete bedding layer after determining that the foundation bearing force meets the design requirements; b, manufacturing and installation of reinforced bars, manufacturing and installing on site, wherein the overlapping length of the reinforced bars should not be less than 40 times of the diameter (mm) of each reinforced bar, and the overlapping area of the reinforced bars same in cross section should not be more than 50% of the total area; c, supporting of die plates, binding the die plates into the shapes of the bottom and the wall of a concrete tank; d, casting of concrete, after completing the construction of the reinforced bars and the die plates, carrying out the casting construction of concrete, firstly casting the bottom of the concrete tank and the wall with the height less than 1m, leveling the top of the wall of the concrete tank, and reserving no step to complete the first time of casing; casting the residual wall of the concrete tank in at least one hour after completing the first time of casting; and e, removal of the die plates, removing the die plates when the strength of the cast concrete being more than 1.2MPa. The integral casting process has the advantages that the construction time of the wastewater tank in the predrilling engineering is reduced, the construction period of the whole predrilling engineering is shortened, the condition of drilling machines not waiting for well fields is ensured, the construction seams are not reserved in the construction, and the leakage problem caused by the construction seams is avoided.

The invention relates to a muffling structure of a fan filter muffler, which comprises an outer shell plate, an outer shell sound-absorbing layer, an outer shell through hole plate and middle muffling pieces; the outer shell sound-absorbing layer, the outer shell through hole plate and a plurality of middle muffling pieces are arranged on the outer shell plate, and each middle muffling piece is formed by coating a middle sound-absorbing layer with a middle through hole plate; the middle muffling pieces are uniformly distributed along the normal direction of an air channel, the spacing between adjacent middle muffling pieces is equal to that between the middle muffling pieces and the outer shell through hole plate, and the thicknesses of the outer shell sound-absorbing layer and the middle sound-absorbing layer are equal. According to the muffling structure of the fan filter muffler, the structure is compact and reasonable; the thicknesses of the sound-absorbing layers are reduced, the number of the sound-absorbing layers is increased, and the spacing between the sound-absorbing layers is reasonable, so that a muffling effect is significantly improved, and the noise is enabled to meet the environmental protection standard.

The invention discloses a table model numerical control cutting machine. The table model numerical control cutting machine comprises a workbench, racks, a beam and a cutting torch. The racks are located on the two sides of the workbench. The beam is located above the workbench. The cutting torch is connected with the beam. The table model numerical control cutting machine further comprises a longitudinal transmission device for driving the beam to move longitudinally, a transverse transmission device for driving the cutting torch to move transversely, a lifting device for driving the cutting torch to move up and down and an air draft dedusting device for air draft dedusting. The air draft dedusting device is located below the workbench. The air draft dedusting device comprises hoppers, flow stabilization bins and air flues. Each hopper is provided with the corresponding flow stabilization bin located below the hopper and communicates with the flow stabilization bin through an air outlet of the hopper. Each flow stabilization bin communicates with the corresponding air flue through an air outlet of the flow stabilization bin. The table model numerical control cutting machine has thebeneficial effects that the structure is compact, the operation is easy, maintenance is convenient, the energy loss is low, and the dedusting efficiency is high; and the high speed and efficiency, stable quality and the like are achieved, and the table model numerical control cutting machine is suitable for cutting of plates or pipes.

The invention discloses a vehicle formation driving system based on Internet of vehicles. The system comprises an information interaction module, a data processing module, and a control system, wherein the information interaction module is used for inter-vehicle communication and obtaining vehicle condition information of formation vehicles; the data processing module is electrically connected with the information interaction module and used for analyzing and processing the received information to obtain expected vehicle condition data of the vehicle; and the control system is electrically connected with the information interaction module and the data processing module at the same time, and is used for controlling a vehicle speed according to the received expected vehicle condition data ofthe vehicle obtained by the processing module. The invention further provides a vehicle formation driving control method based on the Internet of vehicles. A driver can quickly find the formation vehicle and follow the vehicle to drive, the expected vehicle speed is controlled according to a driving condition of the vehicle entering the formation, a safety distance between the vehicle and the preceding vehicle is kept, a traffic jam condition is relieved, and driving safety is improved. The driving conditions of the vehicles are controlled through the inter-vehicle communication so that the distance among the vehicles and the vehicle speed are more reasonable.

The invention discloses a street lamp-based shared bike parking pile. The advantages of a street lamp line are fully utilized, and the parking pile is powered through the street lamp line. Street lamps in the city can be seen everywhere, the spaces are reasonable and the paring pile is arranged on each street lamp, so that the difficulty that a user looks for a bike can be reduced. Each parking pile is provided with two sets of parking systems, a controller and a power module are shared by the two sets of parking systems, and two shared bikes can be parked in front of and behind each street lamp separately. Through the design of a parking clamping groove, the condition that a sidewalk is blocked by the bike is prevented. By adopting an NB-loT wireless communication module, networking among various parking piles is achieved, and a user can query the parking condition of the nearby parking pile on a display screen and can be in contact with a cloud server in real time. Through the design of different color strobes of LED lamps, the user can judge whether the bike or a parking space exists or not at a distance at night.

The invention relates to an absorption tower for wet flue gas desulfurization. A limestone-gypsum wet flue gas desulfurization process is adopted in the absorption tower. The absorption tower comprises an oxidizing reaction tank and an absorbing area, wherein a circular oxidizing reaction tank is arranged under the absorption tower; a square absorbing area is arranged above the absorption tower; a slurry spraying pipe and a nozzle connected to the slurry spraying pipe are arranged on the lower part of the absorbing area; the slurry spraying pipe is a concentric reducer pipe; the slurry spraying pipe is connected to the nozzle by a flange; a mounting angle of the nozzle which is connected to the slurry spraying pipe is vertical upwards; the oxidizing reaction tank of the absorption tower is connected to the side wall of the absorbing area in the manner of square inscribed circle or square circumscribed circle; the slurry spraying pipe and a nozzle overhauling manhole door are arranged on a steel wall of the absorption tower in the absorbing area; and a ceramic lining oxidation air pipe which is connected to the bottom of the oxidizing reaction tank is mounted by being inclined for 15-20 degrees in the manner of being high in external port and low in internal port. The absorption tower for wet flue gas desulfurization is simply and conveniently maintained, thereby efficiently lowering the maintenance cost.

The invention discloses an insulation superimposed plate and a construction method. The insulation superimposed plate is characterized in that embedded nylon parts and supporting and pulling rods are arranged, the embedded nylon parts are provided with connecting rods and connecting discs, connecting grooves are formed in the end faces of the connecting discs, one end of each connecting rod is connected to the corresponding connecting disc, a threaded hole is formed in the other end of each connecting rod, the connecting rods penetrate through an extruded sheet and an adhesion agent layer and stretch out, the connecting discs are clamped on a steel wire mesh through the connecting grooves, the connecting discs and parts of the connecting rods are wrapped in a concrete layer, the supporting and pulling rods are steel ribs and are connected with the connecting rods through threads, and hooks are arranged at the other ends of the supporting and pulling rods. The construction method comprises the steps that insulation superimposed plates are spliced into a part with the size identical with beams, columns and shear force of a frame of an external wall part and are combined with formworks to form a mould, the supporting and pulling rods abut against the corresponding formworks, concrete is poured into the mould, the formworks are then demounted, and the insulation superimposed plates and the concrete form a whole. Construction is convenient and low in cost, and the potential quality hazards such as bulging, cracking, water seepage and disengagement caused by complex operation processes can be avoided to the maximum.

A flue gas desulphurization water ring vacuum pump outlet gas-liquid separation device comprises a housing, one side of the housing is provided with an inlet, the inlet is provided with an inlet flange, the other side of the housing is provided with an outlet, and the outlet is provided with an outlet flange; the housing is sequentially divided into a diffusion section, a large internal diameter section and a conflux section from the inlet to the outlet, the internal diameter of the diffusion segment gradually increases from the inlet to the outlet, and the internal diameter of the conflux gradually decreases from the inlet to the outlet; and the bottom of the large internal diameter section is a funnel-shaped liquid collection room, the top liquid inlet of the liquid collection room is provided with a baffle plate bracket, and the baffle plate bracket supports a baffle plate. The device is a two-phase fluid separation device combining baffling separation with settling separation, can effectively separate and collect fine droplets in the two-phase fluid at the outlet of a vacuum pump, can prevent the secondary entrainment of the collected droplets by a gas, and effectively treats the environmental pollution.

The invention provides a steel tape-threading and locating and punching device and method. The steel tape-threading and locating and punching device comprises a stamping rod, a punching chisel, and a puncher of a locator, wherein the locator comprises a base with a chisel hole and a slot, a location rotating plate with a location hole, and a pointer. A strip steel jacket arranged in the slot and provided with round steel is pressed by using a stamping die, wherein the end parts of the strip steel jacket are doubly folded, the point is aligned to a scale datum line, the punching chisel, an incline of a chisel head of which is inwards inserted in the location hole, is subjected to hammering and punching, and stamped steel reserved with a 1 / 3 connecting part is backwards coiled so that the stamped steel forms a smooth transition on the inner side of a tape-threading hole. The invention has the advantages that a space between the round steel in the steel jacket and a tape-threading rope is reasonable, the tape-threading hole is accurate in location and is uniform in stress, thus the strip steel is avoided being again torn, the defect of breaking the tape-threading rope is eliminated, and the service life of the tape-threading rope is prolonged. The steel tape-threading and locating and punching device is simple and practical, saves labor and time during punching, and has less investment and high effect taking speed because the punching device can be automatically processed and manufactured.

The invention relates to a gypsum plaster board with a convenient construction advantage. For the gypsum plaster board with width of 120cm and length of 300cm, a top edge transverse scale, a first transverse scale, a second transverse scale, a third transverse scale, a fourth transverse scale, a fifth transverse scale, a sixth transverse scale, a seventh transverse scale and a bottom edge transverse scale with equal lengths of 120cm are arranged on a surface protecting paper; a left edge longitudinal scale, a left longitudinal scale, a center longitudinal scale, a right longitudinal scale and a right edge longitudinal scale with equal lengths of 300cm are sequentially arranged on the surface protecting paper in parallel from left to right. For the gypsum plaster board with width of 120cm and length of 240cm, a top edge transverse scale, a first transverse scale, a second transverse scale, a third transverse scale, a fourth transverse scale, a fifth transverse scale and a bottom edge transverse scale with equal lengths of 120cm are arranged on a surface protecting paper; a left edge longitudinal scale, a left longitudinal scale, a center longitudinal scale, a right longitudinal scale and a right edge longitudinal scale with equal lengths of 300cm are sequentially arranged on the surface protecting paper in parallel from left to right. The gypsum plaster board has the advantages that the processing and cutting are convenient, and the construction efficiency is higher.

The invention provides a system for detecting regulation violation of lane-changing vehicles in a zebra crossing area. The zebra crossing area comprises a first boundary line and a second boundary line; the system comprises: a plurality of parallel annular coils, a image pickup device and a processing module, wherein the parallel annular coils are embedded in the zebra crossing area, used for inducing the trigger status of the vehicles, and are respectively inclined to the first boundary line and the second boundary line; the image pickup device is used for capturing images; and the processing module is used for receiving the trigger status and controlling the image pickup device to shoot images. The invention provides a plurality of annular coils, which are arranged in parallel and have reasonable widths and spaces, thereby ensuring that no vehicle is missed, and by timing, comparing and judging, interference can be filtered and wrong detection is avoided.

The invention relates to a method and a reinforcing device for transverse limit and reinforcement of the middle part of a steel trestle, the limiting and reinforcing device comprises a first reinforcing steel pipe pile, the second reinforced steel pipe pile and the third reinforced steel pipe pile, slide block, The first reinforced steel pipe pile, the second reinforced steel pipe pile and the third reinforced steel pipe pile are triangular in distribution, and the third reinforced steel pipe pile is provided with two sliding paths at intervals on the outer surface of the third reinforced steel pipe pile. The sliding block is located between the two sliding paths, and the inclined support beam obliquely supports the upper part of the outer side of the third reinforced steel pipe pile. Thesteel trestle has the advantages of simple structure, low cost, strong applicability, stable and reliable performance, strong maneuverability and good use effect, and has the advantages of improving the overall rigidity of the steel trestle, enhancing the resistance to water flow and wind load.

The invention discloses a radial foam fire extinguishing system for an oil storage tank: a buoyancy support suspended on the oil surface is arranged in the oil storage tank, a fire extinguishing foam injection device is fixedly installed on the buoyancy support, and the fire extinguishing foam injection device passes through the pipeline and the oil storage The fire extinguishing foam supply device outside the tank is connected; the fire extinguishing foam injection device is composed of a buffer concentrator located at the center of the buoyancy support and eight nozzles radially and equally distributed on the outer periphery of the buffer concentrator. In the plane, they are respectively connected with the buffer concentrator, and the spray holes are arranged at intervals along the length direction with openings facing downward and at a proper height from the liquid surface. The invention saves fire extinguishing agent (more than half), has good fire extinguishing effect and high efficiency, and is suitable for fire extinguishing of various fixed-roof oil storage tanks; meanwhile, it can also be popularized and applied to fire extinguishing of various flammable liquid fixed-roof storage tanks.

The invention discloses a two-dimensional code printing machine applied to a bottle cap. The two-dimensional code printing machine applied to the bottle cap comprises a vibrating disk, a first conveying mechanism, a second conveying mechanism, a back blowing mechanism, a two-dimensional code printing and detecting mechanism, a defective product removing mechanism and an encoder used for detectingthe conveying speed of a conveying belt, wherein the first conveying mechanism mainly comprises a conveying panel and a plurality of air blowing holes formed in the conveying panel and used for blowing air backwards, the second conveying mechanism mainly comprises the conveying belt and a plurality of air suction holes formed in the conveying belt, the back blowing mechanism mainly comprises a first photoelectric switch, a first spray head and a material return pipe, the two-dimensional code printing and detecting mechanism mainly comprises a second photoelectric switch, a laser printer and acamera; and the defective product removing mechanism mainly comprises a second spray head and a material receiving pipe. On the basis of fusing the laser printer, the printing precision can be ensured, the rate of certified products is improved, and automatic, convenient and assembly line type production is achieved.

The invention discloses an unsaturated soil permeability coefficient measurement device, and relates to the technical field of soil body permeability coefficient measurement. The device comprises a columnar straight pipe, a plurality of moisture sensors, a plurality of tensiometers, a soil column axial deformation measurement device, and a wetting front displacement measurement device, wherein thecolumnar straight pipe is used for containing a soil sample to be measured, and the upper end of the columnar straight pipe is provided with a loading device for applying axial pressure to the soil sample to be measured; the plurality of moisture sensors and the plurality of tensiometers are evenly arranged on the columnar straight pipe in sequence from top to bottom, water quantity changes in awater supply device and a water storage device are measured through a gravity measurement device; the soil column axial deformation measurement device measures the axial deformation quantity of the soil sample to be measured; and the wetting front displacement measurement device measures wetting front advancing displacement in the soil sample to be measured. By use of the device, the soil column axial deformation can be recorded, the change of soil column axial displacement is monitored to predict the deformation rule of the soil body under different axial force functions, so that a transientprofile method can be used, a wetting front advancing method can be used for measuring a soil body permeability coefficient, and two methods can be simultaneously utilized to accurately measure the unsaturated permeability coefficient functions of various soil bodies.

The invention discloses a planting method for radix pseudostellariaes with good production and good quality. The method comprises the steps of base selection, germplasm selection, cultivation, field management and harvest; wherein the cultivation comprises land preparation, planting ditch ditching, base fertilizer applying, sowing, soil covering and disinfection; and the field management comprisestillage and weeding, topdressing, drainage and irrigation, and pest control and shading. The planting method for the radix pseudostellariaes with good production and good quality adopts the combination of traditional and modern to develop traditional Chinese medicine standard green planting, the amount of pesticides and chemical fertilizers is greatly reduced, the planted radix pseudostellariaescan meet the requirement of the <good agricultural practice for Chinese crude drug> (trial implementation) and the < green industry standard for import and export of medicinal plants and products>, ina year with stable climate, the yield per mu of radix pseudostellariaes can be stabilized at 135kg-160kg (dry goods). The planting method for radix pseudostellariaes with good production and good quality has the advantages of high yield, high quality, ecology, stability and controllability, considerable economic and social benefits and good ecological and environmental benefits.

The invention discloses an iron removal device for an alumina material, comprising a housing, and a material inlet and a material outlet which are arranged on the housing, wherein the position of the material inlet is higher than the material outlet, a plurality of magnetic material rod are inserted into the inner cavity from the side surface of the housing to the iron removal device, and the magnetic material rods are all provided with handles. According to the invention, the device has the advantages of simple structure, low cost, and convenient usage, can effectively remove ferromagnetic impurities from the alumina material, and greatly reduces the iron content in the aluminium liquid in the production process of alumina by electrolysis.

The invention relates to the technical field of cooking ranges, in particular to a multifunctional cooking range. The multifunctional cooking range is characterized by comprising a range frame (1), a water tank (4), a chimney (5) and an oven (9), wherein the water tank (4) is fixedly installed on the range frame (1) and provided with a first range opening (15) and a second range opening (16), the chimney (5) communicating with the range frame (1) is further fixedly installed on the water tank (4), and the oven (9) is fixedly installed on the chimney (9). The multifunctional cooking range has the advantages of saving energy, being environmentally friendly, sanitary and capable of achieving the functions of heating, drying and waste recycling combustion and the like.

The invention discloses a tea cultivation method. The method comprises the following steps: (a) plowing and fertilization are carried out, wherein subsoil of a hilly area is turned up, and topsoil is buried; (b) tea tree seedlings are planted, wherein a line and row spacing of the tea tree seedlings is 70cm*80cm, and a tea tree planting depth is 26-32cm; the tea tree seedlings are watered after planting, wherein a watering amount satisfies that water can penetrate a soil depth of 32-35cm; (c) pest management is carried out, wherein biological pesticides are planted around the tea tree seedlings; (d) fertilization management is carried out, wherein fertilization is carried out once a month before each tea tree harvesting season; and a nutrient solution is sprayed after each harvest; (e) tea picking management is carried out, wherein when the tea trees are mature, tea buds are manually broken, and are stored according to categories; (f) trimming is carried out, wherein the tea trees are trimmed once every March to April; after trimming, the spacing between adjacent tea trees is 18-22cm. With the method, the biological pesticide can lure and kill pests; the tea trees are reasonably spaced when planted, such that tea leaf yield can be effectively improved.

The invention discloses a multi-stage gas homogenizing pore plate structure and a flooded evaporator for preventing suction with a liquid. In the multi-stage gas homogenizing pore plate structure, pore diameters of through holes in each pore plate are formed in a gradual changing mode according to the distance to a suction port of external equipment, and the farther the distance to the suction port is, the greater the diameters of the through holes are. When an air flow enters a baffle plate structure from the lower pore plate, liquid state substances mixed in the air flow are baffled and separated out of the suction port by means of the multi-stage gas homogenizing pore plate structure. The multiple multi-stage gas homogenizing pore plates are combined to play a better flow field homogenizing role, so that a high speed flow field centralized region below the gas homogenizing structure is eliminated, the air flow speed is reduced, and liquid drops are prevented from being taken away bygas. When gas-liquid two phases flow through the multi-stage gas homogenizing pore plates, the accelerating time of the liquid drops is short, the speed is relatively low, and the gas and liquid separated and collided with the next stage gas homogenizing pore plate are unlikely to break, so that the condition that broken relatively small liquid drops follow gas continuously to penetrate the multi-stage gas homogenizing pore plate structure is prevented.

The invention provides a single tree molding, jointing and planting method, which aims to solve problems that the existing tree molding method is single in trunk and tree shape molding and poor in molding effect. The single tree molding, jointing and planting method orderly includes steps of (1), single tree molding: molding the growth of the single tree; (2), jointing molding: selecting at leasttwo successfully molded trees and removing barks at the joint of the trees; making the joints of at least two trees contact and fix together through a fastener. According to the method of performing single plant molding and jointing different trees with successful molding to be one tree, the molding effect is good, and the tree molding is richer and more diversified. Through molding, trees can begrown and molded according to people design. Through molding, the trees can be produced and planted according to factory standard, and can reach high production efficiency and similarity. Compared with the interweaving molding in sapling period, the single plant molding is applied, the space is reasonable, and the lighting is good; therefore, the method is good for improving the growth speed.

The invention discloses a two-dimensional code printing device for gaskets in bottle caps. The two-dimensional code printing device comprises a feeding mechanism, a material arranging mechanism, a linkage mechanism, a first conveying mechanism, a second conveying mechanism, a blowback mechanism, a two-dimensional code printing and detecting mechanism, a defective product eliminating mechanism andan encoder; the gaskets are conveyed to the second conveying mechanism by the feeding mechanism, the material arranging mechanism and the first conveying mechanism in sequence; the blowback mechanismblows back the gaskets with unsatisfactory distance to the material arranging mechanism; and the two-dimensional code printing and detecting mechanism prints a two-dimensional code on the surface of each gasket, detects the printed gaskets, and eliminates unprinted products and defective products in cooperation with the defective product eliminating mechanism. According to the two-dimensional codeprinting device for the gaskets in the bottle caps, automatic and assembly line type production can be realized, the two-dimensional code stored with product information can be printed on the surfaceof each gasket, the effects of information tracing, marketing popularization and the like can be achieved, the bottle cap built-in two-dimensional code formed thereby has better anti-counterfeiting effect, and the two-dimensional code printing device has the characteristics of high production efficiency, high rate of certified products, short production period, low cost and the like.

The invention belongs to the technical field of air freight systems, and concretely relates to a civil narrow-body passenger / cargo aircraft container type freight system. The freight system of the invention quantitatively describes spacing of power drive devices to make the spacing more reasonable and power transmission continuous, quantifies mounting positions of guiding rollers to achieve smoothloading and unloading of container units, and replaces one-way limit locks with two-way limit locks to achieve simultaneous limiting of two adjacent container units along course / reverse course. Thefreight system has good use convenient and high reliability, can give full play to the transport capacity of freight carriers, and solves the technical problem of discontinuous power transmission or cost increase caused by unreasonable spacing arrangement of the power drive devices.

The invention discloses a double-path villus transfer carding method and equipment. Villi are fed into a front-stage carding device through a feeding mechanism of the villi, the villi are transferred in two paths after being subjected to front-stage carding, one path is doffer transfer, and the other path is dust cage transfer. The villi transferred in two paths are separately collected and sequentially fed into carding regions formed by the villi and a rear-stage carding roller respectively for rear-stage carding, and the villi obtained after rear-stage carding are transferred through transfer equipment and then finally guided out. According to the method, front-stage carding and rear-stage carding are arranged, the carding speed is high, and the carding efficiency is far higher than that of traditional carding. According to the method, a double-path villus transfer and feeding mode is adopted for front-stage carding, the carded villi are more fully transferred, the villi returned after being hooked on card clothing are less, therefore, fiber damage is lower, the villus content in falling objects is smaller, and the situation that part of the falling objects contain more villi and pill is avoided. According to the equipment adopted for the method, the gauge of all parts is reasonable, and the selected card clothing can be bought on the market.

The invention discloses a nesting-distance variable supermarket trolley. The nesting-distance variable supermarket trolley comprises a handlebar, handrail net mounting parts, a handrail net, a basket, anti-collision parts, an underframe, castors and snap joints. The handlebar is connected with the upper end of the basket. A cross beam is arranged at the upper end of the basket. The two ends of the cross beam are provided with the handrail net mounting parts respectively. The handrail net is connected with the handrail net mounting parts. The underframe is connected with the basket through the snap joints. The anti-collision parts are arranged at the bottom of the basket. The underframe comprises underframe tubes, a front connecting tube, a front locating rod, a rear locating rod, a lower connecting rod, connecting plates and castor mounting plates. The invention further discloses an implementation method of the nesting-distance variable supermarket trolley. The nesting-distance variable supermarket trolley overcomes the defects that in the prior art, a supermarket trolley is small in loading capacity, high in transport cost, large in occupied space, capable of scratching the outer surface of a vehicle, low in production efficiency, short in service life and the like. The nesting-distance variable supermarket trolley has the advantages of being simple in structure, low in manufacturing cost, small in nesting distance, high in loading capacity, low in transport cost, low in manufacturing cost, long in service life and the like.