42results about How to "Wide adaptability to the environment" patented technology

The invention discloses a pyridine-degrading bacterium as well as a composite bacterial agent, a preparation method and uses thereof. The newly-separated Rhodococcus pyridinovora KT-J002 CGMCC No.2789 and Cellulomonas sp KT-J007 CGMCC No.2788 not only can effectually degrade the high concentration pyridine, but also has tolerance or degradation ability for toxic substances such as benzene, phenol, dimethylbenzene, quinoline, cyanide and the like; the composite bacterial agent composed of Rhodococcus pyridinovora KT-J002 CGMCC No.2789, Cellulomonas sp KT-J007 CGMCC No.2788, Paracoccus d enitrificans W12 CGMCC No.1673, Micrococcus luteus ATCC 49442 and Arthrobacter crystallopoietes ATCC 15481 is used for environmental improvement, can effectually degrade the pyridine and is particularly suitable for the biological treatment of coking waste water.

The invention discloses a cleaning agent for molybdenum aluminum molybdenum coated glass, which comprises the following components by weight: 3-8% of anionic surfactants, 10-30% of nonionic surfactants, 0.2-3% of corrosion inhibitors, 10-30.25% of cosolvents, 5-15% of organic solvent, 0.2-0.5% of chelants and 37.35-64.1% of deionized water. The cleaning agent for the molybdenum aluminum molybdenum coated glass is strong in dirt-removing capacity, wide in environmental suitability, good in stability, low in foam, easy to rinse, good in wettability, free of damage to glass surface, elements such as phosphorus and silicium, peculiar smell, toxicity, corrosivity and pollution to environment, safe, reliable, incombustible, low in cost, convenient to transport and store and low in cleaning cost. In addition, the cleaning agent for the molybdenum aluminum molybdenum coated glass does not explode.

The invention discloses bridge coarse aggregate active powder concrete and a preparation method thereof. The coarse aggregate active powder concrete comprises, by weight, 100 parts of cement, 20-60 parts of blending materials, 2-10 parts of interface modifying agents, 60-120 parts of fine aggregates, 40-120 parts of coarse aggregates, 10-60 parts of fibers and 15-30 parts of water. Under conventional curing processes such as natural conditions, the coarse aggregate active powder concrete has super-high compressive strength, bending tensile strength and tensile strength and bonding strength andlow contraction performance and further has high elasticity modulus, anti-fatigue performance and durable performance and excellent construction performance, dead weight and shrinkage and creep influence of a bridge can be reduced, and the span, the structural stiffness and the bearing capacity of the bridge can be remarkably improved, and the service life of the bridge is prolonged.

The invention discloses chlorella sorokiniana CS-01 and a culture method thereof for producing grease. The preservation number of the chlorella is CCTCC M209220. The culture method for producing the grease comprises the following steps: inoculating index-cultured strains to BG11 sterilized culture solution, adding 0.3 to 1.5 g / L of sodium nitrate or urea and 1*10-5 mol / L to 1*10-3 mol / L of EDTA-Fe (III) into the culture solution, culturing the strains by ventilating or without ventilating at the temperature of between 25 and 35 DEG C, pH of 6 to 11, 6,600 to 10,000 Lx and lighting ratio of 14:10, and harvesting the grease, wherein the dry weight of the harvested cells is as high as 970 mg / L, and the content of the grease can reach 57 percent. The strain is fresh-water unicellular chlorella, has the advantages of strong environmental adaptation, high growing speed and higher grease yield, and has potential serving as a biodiesel preparation raw material to be cultured in a large scale in interior regions.

The invention discloses a flame retardant low foaming polypropylene material and a preparation method thereof. The material comprises, by mass, 10 to 90% of polypropylene, 5 to 30% of a thermally decomposing inorganic substance, 3 to 40% of a halogen-free fire retardant, 1 to 20% of a thermoplastic elastomer, 0.1 to 1% of an anti-oxidant, 0.1 to 3% of a lubricant and 0 to 5% of a functional auxiliary agent. According to the invention, the inorganic substance with low thermal decomposition temperature is added into a polypropylene resin as a foaming agent, and water vapor generated in the decomposition of the inorganic substance is utilized for formation of bubbles; the halogen-free fire retardant is added at the same time, which enables the polypropylene resin to have a certain degree of flame resistance, thereby enlarging the utilization scope of the polypropylene resin; a pre-foaming polypropylene material is obtained through blending fusion extrusion and granulation of an obtained mixture with an extruder, and then a variety of foaming products are produced by utilizing molding equipment like injection molding or mould pressing equipment.

The invention discloses a full-angle mode circuit gain error self-compensation system of a micro-electro-mechanical system gyroscope. The full-angle mode circuit gain error self-compensation system comprises a gyroscope pre-amplification circuit, an ADC module, a gain compensation module, a demodulation module, a parameter calculation module, a PI controller module, a coordinate conversion module,a compensation coefficient calculation module, a modulation module and a DAC module. The pre-amplification circuit module is connected to a detection electrode of the micro-electro-mechanical multi-ring gyroscope, the ADC module is connected to the pre-amplification circuit, the gain compensation module is connected to the ADC module, the demodulation module is connected to the gain compensationmodule, the PI controller module is connected to the parameter calculation module, the compensation coefficient calculation module is connected to the PI controller module, the coordinate conversion module is connected to the PI controller module, the modulation module is connected to the coordinate conversion module, the DAC module is connected to the modulation module, and the digital control oscillator module is connected to a PI controller. According to the system, real-time circuit gain error self-compensation in a full-angle mode of the micro-electro-mechanical gyroscope can be realized.

The invention provides a method for detecting physical punishment behaviors of kindergarten teachers on children. The method comprises the steps of: establishing a background model of a monitored scene of a kindergarten; obtaining position height mapping tables of moving foreground blocks of kindergarten teachers in monitored scene video images; collecting video images of the monitored scene in real time; obtaining all the moving foreground blocks in each frame of video image; detecting initial moving positions of the kindergarten teachers; obtaining a kindergarten teacher tracking list and a children tracking list; judging whether the kindergarten teachers bend down; judging whether the kindergarten teachers approach the children; obtaining moving intensity of limbs of the kindergarten teachers; and judging whether the kindergarten teachers have child abuse actions. According to the invention, a full-automatic analysis algorithm is adopted, the action behaviors of the kindergarten teachers and the children in the video scene are obtained, addition manual work is not needed, and the application is more convenient; a plurality of behavior rules are fused, the physical punishment behaviors of the kindergarten teachers on the children are comprehensively judged, the detection result is more accurate, and false detection and missing detection is reduced; in addition, the method is wide in environment adaptation and high in operation speed.

The invention relates to the field of laser radar, and particularly relates to a scanning device. The scanning device comprises: a rotation support capable of rotation motion around a rotation shaft;a reflector fixedly arranged on the rotation support; a magnetic member fixedly arranged on the rotation support; and a magnetic field generating mechanism generating a magnetic field having a variable direction, wherein the magnetic member is arranged in the magnetic field and performs reciprocation under the action of the magnetic field to drive the reciprocation rotation of the rotation support. The present invention further relates to a laser radar. Compared to a rotation scanning system driven by a motor, the scanning device is small in size and fast in rotation speed, high in efficiency,compared to a traditional galvanometer scanning system, the scanning device is lower in cost, smaller in size, lower in power consumption and better in environmental adaptability, and compared to a MEMS system, the scanning device is larger in scanning area and wider in scanning angle range and is closer to the practicality.

The invention discloses a passive solar radiant heating system and belongs to the technical field of solar application. The system comprises a solar heat collecting system, heat pipes and a heat accumulation wall body, wherein the solar heat collecting system comprises a transparent cover plate, a heat insulation material, a heat accumulation material and a heat absorption coating, the heat insulation material is arranged at the periphery of the heat accumulation material, the transparent cover plate is arranged at the front part of the heat accumulation material, and the heat absorption coating is coated between the transparent cover plate and the heat accumulation material. The heat accumulation wall body comprises a heat insulation material, a heat accumulation material and a building wall body, the heat insulation material is arranged on the surface of the heat accumulation material, the heat accumulation material is arranged in a way of tightly pasting the outer side of the building wall body, and the heat pipes are used for connecting the solar heat collecting system with the heat accumulation wall body, wherein the heat pipes are used as heat transfer carriers, and the heat in the solar heat collecting system is transferred into the heat accumulation wall body for realizing the heat supply heating of a room. The system disclosed by the invention can realize the heating heat supply of a building without any energy source consumption.

The invention relates to a smoke fire detector, in particular to a capacitive smoke fire detector, and solves the problem that the existing fire detector has complex application background and is effected by different interference sources; the invention comprises a shell and a capacitor, wherein, the capacitor comprises 3 to 20 layers of capacitance plates and two electrode rods; the capacitance plate has round plate shape with the diameter of 30 to 150mm, wherein, two sides of an insulating plate are respectively provided with an upper layer of capacitance pole and a lower layer of capacitance plate; the upper layer of capacitance poles of adjacent capacitance plates are connected in parallel by an upper layer of parallel leads; the lower layer of capacitance plates of adjacent capacitance plates are connected in parallel by a lower layer of parallel leads; the capacitance plates are fixed on the two electrode rods; the distance of the adjacent capacitance plates is 2 to 10mm; the capacitor is arranged at the lower part of the inner of the shell; an anti-insect net is positioned at the lower part of the shell; the invention is a capacitive fire detector based on a new concept, which has simple form, complete function, wide environment background adaptive capacity and realizing capacity of improving the effective function in the condition of complex environment.

The invention discloses a salt-tolerant growth-promoting bacterial strain JP-JH capable of alleviating plant salt damage and applications thereof. The strain belongs to Kushneria indalinina, and is deposited with the China Center for Type Culture Collection on December 12th, 2019 and assigned the accession number CCTCC M 20191039. The strain has strong salt and alkali resistance; the concentration, tolerated by the growth of the strain, of NaCl is 1-15%(w / v), and the tolerant pH value is 7.0-9.0; and IAA can be secreted without the induction of L-tryptophan. In addition, the strain can achievesignificant promotion effects on the growth (leaf length and fresh weight on the ground) of wheat in living and inactivated states and under salt-free stress and salt stress conditions and can obviously alleviate salt damage to the wheat under the salt stress conditions. Thus, compared with reported salt-tolerant strains, the bacterial strain JP-JH can reasonably reduce the requirements for the cultivation, storage, transportation and colonization of the strains, so that production costs can be reduced, and convenient promotion and application can be achieved.

A movable miniature robot system for the precise job of microchemico-electric system is disclosed. Its micromovement locating unit is arranged in the macromovement locating unit. The transition connecting plate is fixed above said micromovement locating unit and to the top ends of vertical connecting posts. Its torque motor is fixed to said macromovement locating unit. Its advantages are small size, light weight, modular design, and high adaptivity. Its highest speed and locating precision are 50 mm / s and 0.1 mm for macromovement and 0.5 mm / s and 0.1 micron for micromovement.

The invention discloses a cleaning agent for coated glass. The cleaning agent comprises, by weight, 2-5% of anionic surfactants, 5-10% of nonionic surfactants, 15-30% of cosolvents, 5-15% of organic solvents and the balance of deionized water. The cleaning agent for the coated glass has the advantages of strong decontamination ability, high environmental adaptability, high stability, low foaming,easiness in rinsing, high wettability, no environment pollution, low cost, convenience in transportation and storage, and low cleaning cost.

The invention discloses an energetic room-temperature curing agent based on a hydroxyl-terminated polybutadiene bonding system, namely, 5-nitrobenzene-1, 3-dinitrile oxide. According to a preparationmethod of the energetic room-temperature curing agent based on the hydroxyl-terminated polybutadiene bonding system, with 1, 3-phthalic aldehyde as an initial raw material, the 5-nitrobenzene-1, 3-dinitrile oxide is synthesized through four steps of reactions of nitrification, oximation, halogenation and dehydrohalogenation. The invention further discloses a solidified body, which is formed by mixing hydroxyl-terminated polybutadiene and the 5-nitrobenzene-1, 3-dinitrile oxide, of the energetic room-temperature curing agent based on the hydroxyl-terminated polybutadiene bonding system. The prepared energetic room-temperature curing agent based on the hydroxyl-terminated polybutadiene bonding system, disclosed by the invention, has the advantages of good product quality, high yield and simple separation, is suitable for large-scale industrial production, is suitable for room temperature curing and forming of hydroxyl-terminated polybutadiene type cast composite propellent in a solid rocket engine and room temperature curing and forming of a HTPB type explosive mixture and can also be used for room temperature curing of other HTPB type adhesives, sealing materials and coatings.

The invention provides high-strength and low-temperature-resistant forklift door frame structural steel and a preparing method thereof. The forklift door frame structural steel comprises following components including, by weight percent, 0.15%-0.20% of C, 0.35%-0.50% of Si, 1.40%-1.60% of Mn, smaller than or equal to 0.020% of P, smaller than or equal to 0.010% of S, 0.07%-0.09% of V, 0.025%-0.04%of Nb, 0.30%-0.45% of Cr, 0.011%-0.016% of N, smaller than or equal to 0.003% of O, and the balance iron and inevitable impurities. The preparing method of the high-strength and low-temperature-resistant forklift door frame structural steel comprises converter smelting, LF refining, continuous casting, steel blank heating, rolling and cooling after rolling. According to the forklift door frame structural steel prepared through the preparing method is economical and reasonable in cost, on the premise that the high yield strength (larger than or equal to 500 MPa) of materials is guaranteed, thelow-temperature impact toughness is obviously improved, and the impact toughness reaches 70 J or above under the condition of -20 DEG C. The design requirements of users for lightweight, large loadsand long service life can be met, and wide environment adaptability is achieved.

The invention discloses steel slag-based multi-metal composite phosphate cement, and belongs to the technical field of rapid repair building materials. The cement is prepared from the following raw materials in parts by weight: 100 parts of steel slag, 15-50 parts of phosphate and 1-5 parts of retarder, when in use, the cement material is stirred and mixed with water, and has the excellent properties of the controllable setting speed, the high early strength, the high low-temperature setting speed, the small volume deformation, the wide environmental adaptability, strong wear resistance, goodfrost resistance and the like; and the phosphate cement is prepared from composite metal substances in the steel slag, so that the material preparation cost is reduced, a new way is provided for efficient resource utilization of the steel slag, and the method has certain environmental protection and economic benefits.

The invention discloses a steel slag-based pervious concrete. The concrete comprises, by weight, 100 parts of steel slag, 15-30 parts of phosphate, 1-5 parts of a retarder and 50-150 parts of steel slag aggregate. When in use, the concrete materials are uniformly stirred and mixed with water, the obtained mixture is formed and naturally cured. The concrete has the excellent properties of high early strength, high low-temperature setting speed, small volume deformation, wide environmental adaptability, good water permeability and the like; and the defect that traditional pervious concrete is low in strength is overcome, meanwhile, a large amount of waste steel slag can be effectively treated, energy conservation, consumption reduction and emission reduction are achieved, and certain environmental protection and economic benefits are achieved.

The invention discloses chlorella sorokiniana CS-01 and a culture method thereof for producing grease. The preservation number of the chlorella is CCTCC M209220. The culture method for producing the grease comprises the following steps: inoculating index-cultured strains to BG11 sterilized culture solution, adding 0.3 to 1.5 g / L of sodium nitrate or urea and 1*10-5 mol / L to 1*10-3 mol / L of EDTA-Fe (III) into the culture solution, culturing the strains by ventilating or without ventilating at the temperature of between 25 and 35 DEG C, pH of 6 to 11, 6,600 to 10,000 Lx and lighting ratio of 14:10, and harvesting the grease, wherein the dry weight of the harvested cells is as high as 970 mg / L, and the content of the grease can reach 57 percent. The strain is fresh-water unicellular chlorella, has the advantages of strong environmental adaptation, high growing speed and higher grease yield, and has potential serving as a biodiesel preparation raw material to be cultured in a large scale in interior regions.

The invention discloses Graesiella sp. WBG-1 as well as an isolation and screening method and an application thereof. The algal strain grows fast, is high in adaptability to pH change, and has the characteristics of large cells, proneness to sedimentation, resistance to protozoa swallow and the like, which are suitable for cultivation in large scale. The Graesiella sp. WBG-1 accumulates a large amount of grease in cells under the low-nitrogen cultivation condition, so that the Graesiella sp. WBG-1 can be used as raw materials of microalgae biodiesel; a large amount of protein is accumulated in the cells of the Graesiella sp. WBG-1 under the high-nitrogen cultivation condition, the Graesiella sp. WBG-1 can be applied to production of microalgae protein accordingly; besides, the Graesiella sp. WBG-1 can fix exogenous carbon dioxide efficiently under the higher pH condition, thereby being capable of being applied to biological fixation of flue gas carbon dioxide.

The invention discloses a tool and equipment for disassembling and assembling a tuyere medium sleeve of an iron-making blast furnace. The tool comprises a driving device and a grabbing device connected with the driving device. Under the driving action of the driving device, the grabbing device is provided with a locking position opened to clamp the inner wall of the tuyere medium sleeve and an unlocking position contracted to release the tuyere medium sleeve. The end, away from the driving device, of the grabbing device is provided with a first stop piece capable of being clamped with a first opening edge of the tuyere medium sleeve, and the other end, close to the driving device, of the grabbing device is provided with a second stop piece capable of being clamped with a second opening edge of the tuyere medium sleeve. The grabbing device is further provided with a supporting piece, and the supporting piece can abut against the inner wall of the tuyere medium sleeve when the supporting piece is located at the locking position so that the tuyere medium sleeve can be prevented from shaking in the moving process. The clamping and fixing effect on the tuyere medium sleeve is better, so that the potential safety hazard that the tuyere medium sleeve falls off from the grabbing device is reduced.

The invention belongs to the technical field of cable materials, and discloses a high-tear-resistance cable material and a preparation method thereof. The high-tear-resistance cable material is prepared from chlorosulfonated polyethylene, magnesium oxide, white carbon black, nanoscale calcium carbonate, chlorinated paraffin, calcium hydroxide, an anti-aging agent RD, antimonous oxide, low-molecular polyethylene wax, paraffin, a coupling agent silicon -69, a vulcanizing agent DCP, an accelerant TAIC and a plasticizer DOTP / DOA. According to the invention, chlorosulfonated polyethylene is used asa base material, various polymers are sequentially added and mixed into a proper cable material according to a proper proportion obtained by countless tests, and the cable material has excellent mechanical properties, good oil resistance, good wear resistance and wide environmental adaptability and is a novel cable material with comprehensive excellent properties.

The invention relates to a wine pouring machine, which solves the problem of time and energy waste, as well as low efficiency due to manual operation during a pouring process for Fenyang wine. The wine pouring machine comprises two lower end beams provided with a driven wheel and a driving wheel, a main column and an elevating guide pillar are provided on each lower end beam, a suspension beam support is fixed on the elevating guide pillar in an oblique mode, a vibration capturing device is suspended below a suspension beam by using a chain electric hoist, the vibration capturing device comprises a cylindrical shell with edge hinged to several petals, a vibration exciter is fixed at top in the cylindrical shell, and an elevator is fixed between the cylindrical shell and a petal collection plate. The wine pouring machine uses an elevating system by cooperating with a material taking apparatus ingeniously, and realizes the mechanization and automation of the pouring process, under the prerequisite that the lifting is guaranteed by the elevating system, a structure is simplified as possible, a material collection mechanism employs a vibration petals-collection mode, compared with other material collection schemes, the wine pouring machine saves more space and lowers the cost. The wine pouring machine is the Fenyang wine brewage equipment which has the advantages of economic, advanced, reliable, safe, environmentally friendly performances.

The invention discloses a monoraphidium sp. strain SS-06 with high yield of starch and fat, wherein the classification name of the monoraphidium sp. strain SS-06 is Monoraphidium sp., and the monoraphidium sp. strain SS-06 is preserved in the China General Microbiological Culture Collection Center (CGMCC) on April 24, 2015, and is assigned with the accession number of CGMCC No.10765. The bred monoraphidium sp. strain SS-06 has good application potential, is wide in environmental adaptation, and can produce starch and fat with high yield under the suitable condition, therefore, the different demands of the downstream production can be satisfied, and the application range of the monoraphidium sp. strain SS-06 is expanded.

The invention relates to a wine pouring machine, which solves the problem of time and energy waste, as well as low efficiency due to manual operation during a pouring process for Fenyang wine. The wine pouring machine comprises two lower end beams provided with a driven wheel and a driving wheel, a main column and an elevating guide pillar are provided on each lower end beam, a suspension beam support is fixed on the elevating guide pillar in an oblique mode, a vibration capturing device is suspended below a suspension beam by using a chain electric hoist, the vibration capturing device comprises a cylindrical shell with edge hinged to several petals, a vibration exciter is fixed at top in the cylindrical shell, and an elevator is fixed between the cylindrical shell and a petal collection plate. The wine pouring machine uses an elevating system by cooperating with a material taking apparatus ingeniously, and realizes the mechanization and automation of the pouring process, under the prerequisite that the lifting is guaranteed by the elevating system, a structure is simplified as possible, a material collection mechanism employs a vibration petals-collection mode, compared with other material collection schemes, the wine pouring machine saves more space and lowers the cost. The wine pouring machine is the Fenyang wine brewage equipment which has the advantages of economic, advanced, reliable, safe, environmentally friendly performances.

The invention discloses an antistatic micron filament composite superfine fiber. The antistatic micron filament composite superfine fiber is prepared from the following components in parts by weight: 40-50 parts of polyester macromolecules, 30-40 parts of polyamide macromolecules, 4-8 parts of silver oxide nano powder materials, 1-5 parts of an antioxidant 1010 and 3-8 parts of a stabilizer, and the antistatic micron filament composite superfine fiber is characterized in that the powder particle size of the silver oxide nano powder materials is D less than 0.1 [mu] m; the polyester macromolecules is one of polyethylene glycol terephthalate or polybutylene terephthalate; the stabilizer is one or more of triphenyl phosphite, trimethyl phosphite and tridecyl phosphite. The antistatic micron filament composite fiber obtained through a preparation method has excellent antistatic capability, so that resistivity of the fiber surface can be effectively reduced; the antistatic property is efficient and lasting, so that static electricity can be eliminated in an extremely short time; the antistatic micron filament composite superfine fiber has wide environmental adaptability to prevention of generation and harm of the static electricity.

The invention relates to a method of reducing amount of plutella xylostella by using cotesia plutellae. The method of reducing the amount of the plutella xylostella by using the cotesia plutellae plays a part in extinction of the plutella xylostella through eclosion, parasitism and field release of the cotesia plutellae. The method of reducing the amount of the plutella xylostella by using the cotesia plutellae has the advantages of being ecologically environment-friendly, avoiding damage of agriculture to the environment, being efficient and economical in extinction effect to the plutella xylostella, and being applicable to large-scale utilization in the agriculture.

The invention relates to the field of cameras, in particular to a high-precision and wide-environmental-adaptability optical lens. The lens comprises a band-pass optical filter, a main lens barrel, anoptical-mechanical structural element group, an airtight barrel and window glass; a band-pass optical filter and a plurality of optical-mechanical structural element groups are sequentially arrangedin the main lens barrel, the airtight cylinder is coated on the main lens barrel, one end of the airtight cylinder is arranged on the main lens barrel, window glass is arranged in the other end of theairtight cylinder, the plurality of optical-mechanical structural element groups are positioned between the band-pass optical filter and the window glass, and each optical-mechanical structural element group comprises a lens and an inner-layer lens barrel; a lens is installed in the inner-layer lens barrel, the inner-layer lens barrel is installed in the main lens barrel, and the plurality of optical-mechanical structural element groups are concentrically installed in the main lens barrel. The lens adopts a lens structure form taking the optical-mechanical structure element group as a basic unit, and has the characteristic of good assembling and adjusting manufacturability, the eccentric precision can reach 5 '' to 10'', the airtightness of the lens is realized, and the internal pressureof the lens is ensured to be within an allowable range when the lens works.

The invention discloses a method for identifying leakage of battery electrolyte in a communication power supply battery of a substation. The characteristic objects of the outer surface of the battery case and the positive and negative shell covers in the picture are identified according to the color features, and then the outer surface of the battery shell and the positive and negative shell covers in the picture are segmented. In the feature area, the method of combining RGB color features and grayscale features is used to identify the position of the outer surface of the battery case and the positive and negative cover in the picture, and finally according to the symmetrical features of the outer surface of the battery case and the positive and negative cover in the picture , to exclude other interferences, so as to judge whether there is electrolyte leakage on the outer surface of the substation communication power battery case and the positive and negative shell covers according to the RGB color eigenvalues ​​and grayscale eigenvalues ​​of the outer surface of the battery shell and the positive and negative shell covers. The method of the present invention has reliable anti-interference capability, can effectively avoid interference phenomena due to picture shaking, blurring, etc., and has high accuracy and practicability.

The invention provides a vertical bicycle stand, and belongs to the technical field of a bicycle stand. The stand comprises a support frame, a vertical track, a front and rear wheel fixing mechanism and an anti-backing mechanism, and a lot of space is saved. Due to a design of a sheltering shed and signboards, the bicycle parking is safer and more reliable. The vertical track adopts a sliding structure to be suitable for bicycles with different lengths. The front and rear wheel fixing mechanism adopts the sliding structure and slides along the vertical track to be suitable for the bicycles with different distances between wheels, and the front and rear wheel fixing mechanism gives a force for leaning to the support frame to the wheels, so that the bicycle can be firmly and vertically placed. The anti-backing mechanism gives a force for leaning to the support frame and a vertical-upward force to the bicycle, so that the bicycle can be upwards, vertically and safely parked on the stand. The vertical bicycle stand has small occupied area, fully utilizes space, is suitable for cities with large building density and small public area, and is particularly suitable for communities, markets, campuses and other public places.