150results about How to "Strong light transmission" patented technology

The invention relates to ceramic glaze, in particular to raw material matting glaze used for producing high-quality matting bone china products. The raw material matting glaze comprises the following chemical components in percent by weight: 48-60 percent of SiO2, 12.0-22.0 percent of Al2O3, 5.0-12.0 percent of ZnO, 5-12 percent of CaO, 0.5-2.0 percent of MgO, 0.0-3 percent of BaO, 0.0-3.0 percent of ZrO2, 0.0-2.0 percent of TiO2 and 5.0-15.0 percent of K2O and Na2O. The feldspar of the mineral raw material is mainly introduced. The invention has simple, scientific and reasonable constituent and is the raw material glaze; and the glaze does not need to be made into frits, therefore, energy sources are largely saved; the blank glaze has good adaptability, low firing temperature and wide firing range; the fired finished-product ceramic glaze surface is fine, moist, smooth and soft and does not have strong reflect light; and the glaze surface has strong corrosion resistance, high mechanical strength and good thermal shock stability and is easy to clean, therefore, the glaze is especially suitable for tableware dish-washing machines. The invention thoroughly solves the problems of the gloss and the texture of high-grade bone china.

The invention discloses a preparation method for a one-component waterborne polyurethane transparent heat-insulating coating. The method comprises the following steps of dehydrating a polyisocyanate and a macromolecular polyol according to a certain weight proportion; adding the dehydrated materials into a four-necked flask; introducing nitrogen for protection; then adding a catalyst, a chain extender and a silane coupling agent in order; dropwise adding deionized triethylamine with high-speed stirring after the reaction is finished; then adding a nano-powder dispersion liquid into a polyurethane prepolymer neutralized with the triethylamine with high-speed stirring; adding an acid and alkali neutralizer to adjust pH values after uniform distribution, and thus the waterborne polyurethane nano-powder composite emulsion is obtained; removing a solvent from the composite emulsion; and adding a flatting agent, a wetting agent, a defoaming agent and a thickening agent, so that a waterborne polyurethane nanocomposite coating can be prepared. The preparation method is simple in process and low in cost, and the coating is environment-friendly, fits the national environmental protection quality standard, and has excellent heat insulation performance and transparency.

The invention relates to a reusable biological floating bed which is characterized by consisting of a frame, a net cage and net sheets. The net cage and the net sheets are respectively fixed on the frame by nylon ropes. The frame the depth of which is 20cm is made of PVC pipes with the diameter of 50mm and is rectangular or square; and the area of the frame can be determined according to the requirement. The net sheets on the upper layer are used for fixing plants and the mesh diameter of the net sheets is about 2cm; and the mesh diameter of the net cage is about 2mm and the net cage is used for protecting the roots of the plants. The reusable biological floating bed has the following advantages: firstly, the floating bed is light, convenient to assembly, disassembly and reuse; secondly, with the net cage design, the floating bed is beneficial to protecting the roots of the plants; and thirdly, the middle of the floating bed frame has a double-layer net sheet structure, so the floating bed has stronger transmittance compared with the traditional used foam plate and is beneficial to growth of fishes and planktons in water.

The invention discloses a bowlder-imitated artificial stone plate and a manufacturing method thereof. The artificial stone plate comprises the following components in percentage by mass: 28-30% of unsaturated polyester resin, 40-65% of aluminum hydroxide, 5-30% of shells crushed into objects with diameters of 1-5 cm, 0.02-0.04% of cobalt naphthenate, 0.03-0.05% of methyl ethyl ketone peroxide and 1-2% of pigment paste. The bowlder-imitated artificial stone plate disclosed by the invention has the advantages that: the bowlder-imitated artificial stone plate is environmental-friendly, non-toxic and non-radiative; products are diversiform in color, bright in color and translucent; and the bowlder-imitated artificial stone plate can be produced according to various needs of customers, so that the stone plate is agile and changeable and convenient to decorate and collocate, thereby creating colorful life spaces. Compared with ceramic tiles, the product is light in weight and can be arbitrarily cut and processed; and the bowlder-imitated artificial stone plate has various thicknesses, so that the applicable range of the stone plate is wider than that of ceramic tiles in decoration. The production method disclosed by the invention is simple in process and safe and convenient in production, and a produced artificial stone plate has a smooth and non-porous surface, and a situation that dirt infiltrates into the plate does not occur in the process of application, so that the application of the artificial stone plate is cleaner and more sanitary.

The invention relates to artificial lens synthetic mica which is prepared from the following raw material in percentage by weight: 34%-36% of quartz sand, 11%-13% of alumina, 28%-30% of fused magnesite, 18%-21% of potassium fluosilicate and 3%-5% of potassium carbonate. A preparation method of the artificial lens synthetic mica comprises the following steps of: 1) dosing, stirring and mixing uniformly for later use; 2) manufacturing a vessel; and 3) adding raw materials uniformly stirred and mixed in the step 1 into the vessel, switching on a three-phase power supply and performing electrothermal igneous fusion on the raw materials in the vessel according to four phases of arc strike, heating-up, heat preservation and cooling, so as to prepare the artificial lens synthetic mica. The artificial lens synthetic mica has the advantages of strong light permeability, high mechanical property, good heat-resistant performance, stable electrolysis performance, high corrosion resistance and less air release rate under vacuum; and the preparation method can be used for utilizing energy sources more effectively, saving energy sources, lowering the cost and preparing the artificial lens synthetic mica with high quality.

The invention discloses an extra wide angle lens which comprises an aperture slot, a lens set composed of six spherical glass lenses and a lens cone. The lens set comprises the first lens, the second lens, the third lens, the fourth lens, the fifth lens and the sixth lens, wherein the first lens, the second lens, the third lens, the fourth lens, the fifth lens and the sixth lens are coaxially arranged in sequence from the object side to the image side. The first lens and the second lens are meniscus lenses with negative focal power and protruding to the object side, the third lens and the fourth lens are double convex spherical lenses with positive focal power, and the fifth lens and the sixth lens are glued so that a lens element with positive focal power can be formed; the aperture slot is located between the third lens and the fourth lens. The view angle of the extra wide angle lens can reach the extra wide angle of 170 degrees. Machining of the lens is easy to achieve, cost is low, and the extra wide angle lens can satisfy the requirement for the high definition quality.

The invention provides an LED lamp radiating with optically coupled cooling liquid. An excellent heat-conducting optically coupled cooling liquid is filled between the luminous body of the outgoing end of the LED lamp and an enclosed shell so as to complete leakage-free encapsulation. Excellent heat-conducting properties and excellent optical characters of the optically coupled cooling liquid are used for realizing the improvement of the excellent heat conduction and optical characters between the luminous body of the LED lamp and the shell. When the radiating effect is needed to further improve, the optically coupled cooling liquid is forced to complete adequate heat exchange in a cold pool in the manner of pumping in the cold optically coupled cooling liquid and overflowing the hot optically coupled cooling liquid so that the junction temperature of the luminous body is maintained below 125 DEG C, so as to completely improve the radiating conditions of the luminous body in the LED lamp, prolong the service life of the LED lamp radiating with optically coupled cooling liquid with power LED integrated light source and the outgoing effect of the outgoing end.

The invention provides a light-permeable shell, which comprises a body, wherein the body is provided with a transparent part, the surface of the transparent part is provided with patterns, the pattern layer comprises transparent ink, and a vacuum coating is arranged between the transparent part and the pattern layer. The light-permeable shell disclosed by the invention not only has strong light permeability, but also presents a better highlight glaring effect, is simple and convenient, and is suitable for being applied in luminescence shells of various electronic products. The invention also provides a manufacturing method of the light-permeable shell, and the application of the light-permeable shell in a cell phone.

The invention relates to hot-press-free antibacterial and anti-scraping optical explosion-proof film. Konjac glucomannan nanocrystalline is added into a protection layer and modified through chitosan,the interfacial interaction force among molecules in a formula system is greatly increased, the dispersing performance and the compatibility among components are improved, and thus the mechanical performance of the structure of the protection layer is improved; by adding inorganic and organic compound synergistic antibacterial agents, the antibacterial effect of the protection layer is greatly improved, and cross propagation of bacteria after surface contact of the human body is avoided; the antibacterial and anti-scraping optical explosion-proof film is subjected to hot-press-free curing molding, and the processing procedure and the processing cost are reduced; TPU is good in processability and flexibility and resistant to shock, an optical-grade PET base material is good in optical transparency, the requirement of the explosion-proof film for the optical performance is met, and the light transmittance of the explosion-proof film is increased. The explosion-proof film has good lighttransmittance, static resistance, wear resistance, scraping resistance and bacterial resistance; through the arrangement of the explosion-proof structure layer, the safety and stability during use areguaranteed, and meanwhile the requirement for optical-grade appearance is met.

The invention discloses a light-transmission rain-proof type shutter window which comprises a window frame and a plurality of rotating shutters, wherein each rotating shutter is rotationally connectedwith an inner wall of a window frame through rotating shafts fixed at two ends of the rotating shutter; a control cavity and a heating cavity are formed inside the window frame; the bottom of the control cavity is rotationally connected with a worm rod through a bearing; one end, near the control cavity, of each rotating shutter penetrates through the inner wall of the window frame to extend intothe control cavity and is provided with a worm wheel in a welding way; a plurality of worm wheels are engaged with the worm rod; and rotating metal is welded at the upper end of the worm rod. The light-transmission rain-proof type shutter window has the advantages that in the temperature rise process in the heating cavity, methylene dichloride in an air bag is heated and evaporated so that the air bag is expanded; a water inlet hole is gradually blocked, so that external rainwater continuously enters the inside the heating cavity; the heat waste caused by dissolution of excessive sodium hydroxide by excessive rainwater can be avoided on the premise of maintaining the temperature inside the heating cavity; and the functionality of long-time effectiveness of sodium hydroxide particles can be maintained.

The invention relates to a production method of wet-process super-bright acrylic fibers. The invention includes the following steps: (1) preparing a polymer by means of mixing dual monomers of acrylonitrile and vinyl acetate, performing aqueous suspension polymerization reaction and carrying out treatment after reaction is finished to obtain a polyacrylonitrile powder polymer; (2) preparing a spinning solution by means of dissolving the powder polymer in the step (1) in dimethylacetamide, and filtering to obtain the spinning solution; (3) adding retarder into the spinning solution, performing spinning under the pressure of 0.7-0.9 MPa and at the temperature of 80-97 DEG C, and performing coagulation formation in coagulating bath water solution; (4) subjecting tows to washing, drafting, oil applying, drying, curling and shaping to obtain super-bright acrylic fibers. By improving solution and spinning forming and aftertreatment process conditions, surface grooves and inner holes of fibers are reduced, gloss and light transmittance of fibers are improved, and market demands are satisfied. The production method is simple and feasible, the process is easy to control and the like.

The invention relates to an organic silica gel material, in particular to a LED lens, which is characterized in that the lens is made of silica gel, the chemical formula is as shown, wherein, R is an organic radical having methyl polyethylene acyl and comprises high polymer, n is equal or more than 8 but less or equal to 20. The polysiloxane in cage structure in the structural unit is used as main component, silicon resin. The material is applicable for producing high-power LED lens, has such advantages as the high heat resistance, the strong light transitivity, the small expansion coefficient and the high acceptability rate.

The invention relates to a method of producing technical products, daily essentials and municipal appliances, especially an imitation sandstone product preparing method, firstly preparing raw material of each component, coating a first layer of raw material on the surface of the mould, solidifying at normal temperature, then coating a second layer of raw material to solidify at normal temperature, then coating a layer of raw material to lay glass fiber or glass fiber cloth on this layer, using enhancement layer of raw material to permeate, then solidifying at high temperature and opening the mould, then making the working procedures of sand blasting, finishing, colorizing, covering paint, etc, thus able to achieve a series of imitation sandstone products which have the advantages of lightness and thinness, strong photopermeability, sense of fineness, sense of reality and naturalness, corrosion resistance, shock resistance, etc.

The invention discloses a light conversion agent combination, and the preparation method of the combination as well as the method for preparing light conversion agricultural films. The light conversion agent combination is composed of Eu (III)-organic ligands and is coated on inert inorganic carriers, with the following general formula: AxByCz, wherein, A is a compound or chelate of europium; B is an organic ligand compound; C is an inorganic carrier; x, y and z respectively stand for the mass ratio of A, B and C, x: y: z ranges from 1:0.2: 0.1 to 1:4.5:100. The agricultural film prepared with the light conversion agent combination of the invention converts the ultraviolet light in the solar spectrum into red light and improves the luminous intensity of the red light in the agricultural films so as to enable the red light area to be increased by 10% to 40%, which facilitates the photosynthesis of crops, improves the output of the crops and speeds up the blossoming, riping and fruiting of the crops.

The invention discloses a glass lamp tube processing technology. The technology comprises the following steps of tube cutting and burring, tube bending, pin bending / pin cutting / burring, annealing, exposed tube film coating and powder coating, head lathing, tube baking, powder rubbing and port sealing. Main inspection procedures are arranged after head lathing. When internal powder coating of the exposed tube after head lathing is disqualified through inspection, tube washing or scrapping is performed according to different orders of severity. For example, tube washing is performed if the order of severity is within the repairable scope, then powder distribution is performed again and film coating and powder coating are performed on the repair tube again, the process enters the tube baking procedure and powder rubbing is performed after qualification is proved through inspection, and then wire stretching and port sealing are performed on the lamp tube. A complete production technology procedure is established, all procedures of use of a straight tube, manufacturing of the exposed tube and final completion of the finished lamp tube are coordinated compactly and coherently so that production efficiency of the glass lamp tube is enhanced. Generation of defective products can be eliminated by the inspection procedures arranged between up and down processes, and product percent of pass and transmittance of the glass lamp tube can be substantially enhanced.

The invention relates to technology for cultivating three-stem cotton. The technology is characterized by comprising the following steps: shooting growing points on the main stem of a cotton plant after 5 to 6 main leaves growing on the cotton plant are spread; and reshaping the cotton plant when three vegetative shoots over 5cm grow from the axil of the main leaves, removing other residual vegetative shoots, and keeping the three vegetative shoots with similar sizes to become three main stems, secondarily shooting tops of the three main stems and local conventionally cultured spring cotton which is subject to top shooting in the same term. The technology has the advantages of saving man power for management, increasing photosynthesis of the plant, improving the fiber quality, reducing amount of boll rot, increasing the amount of canicular boll, and improving the cotton yield.

The invention discloses a preparation method of fully-biodegradable copolyester, relates to the technical field of fully-biodegradable copolyester preparation, and solves the problems of poor tensileyield strength, tearing resistance and light transmittance of the existing fully-biodegradable copolyester. According to the preparation method, main raw materials contain aromatic dibasic acid, aliphatic diol and aliphatic dibasic acid, wherein the aromatic dibasic acid is one of terephthalic acid or isophthalic acid; the aliphatic diol is one of C4-C10 saturated diols, and the aliphatic dibasicacid is adipic acid. The disclosed copolyester has strong fracture resistance, excellent elasticity, good processability and strong light transmission, and can hardly be snapped.

The invention discloses a urethane acrylate intermediate of an adhesive for bonding a touch screen. The urethane acrylate intermediate is prepared from the following raw materials in parts by weight: 55-75 parts of polyether polyol, 1-3 parts of polyhydric alcohol phosphate ester, 1-3 parts of mercapto polyether polyol, 7-15 parts of diisocyanate, 0.1-0.5 part of catalyst, 0.3-0.6 part of antioxidant, 15-40 parts of diluent, 1-5 parts of end-capping reagent and 0.1-0.3 part of stabilizing agent. The invention further discloses a preparation method of the urethane acrylate intermediate. The urethane acrylate intermediate of the adhesive for bonding the touch screen has the excellent characteristics of high refractive index, high flexibility, high weather resistance, low shrinkage ratio, high light permeability and the like. The urethane acrylate intermediate can be applied to production of the adhesive for bonding the touch screen, including single ultraviolet curing, ultraviolet curing heating curing, ultraviolet humidifying air curing and ultraviolet humidifying air heating and curing.

The invention relates to an image display method and device, and belongs to the technical field of computers. The method comprises the following steps of determining a display mode of a target image according to image data of the target image and a preset judgment model of the display mode when a display instruction of the target image is received, wherein the display mode is any one of a black-white mode, a standard mode and a color precision mode; determining at least one color channel corresponding to the display mode of the target image based on a pre-stored corresponding relation betweenthe display mode and the color channel; determining image data of the image data of the target image under the at least one color channel; and displaying and outputting the determined image data basedon a sub-display unit corresponding to the at least one color channel in a display panel. By the adoption of the method and the device, the backlight loss can be lower when the image is displayed.

The invention belongs to the technical field of liquid crystal display, and specifically relates to a method for manufacturing an anti-glare liquid crystal glass cover plate; including the following manufacturing steps: (1) glass pretreatment, (2) glass physical strengthening, (3) coating pretreatment, (4) ) anti-glare coating. The process provided by the invention firstly cuts and grinds the glass, processes the glass into the required size, then heats the glass to improve the physical properties of the glass, increases the hardness and transparency of the glass, and finally evaporates the coating on the glass surface The way to get a layer of anti-glare film. The liquid crystal glass cover plate produced by the invention has the characteristics of high hardness, wear resistance and scratch resistance, and has good performance of filtering blue light and preventing glare.

The present invention belongs to the field of display devices, and provides a display device and a preparation method thereof. The display device comprises a substrate, a light-emitting device, a first package layer and a second package layer, the first package layer comprises a carbon material layer and first metal nanoparticles / second metal nanowire layer. The carbon material layer is high in light transmission and good in thermal conductivity can effectively absorb the heat emitted by the device; the first metal nanoparticles and the second metal nanowire layer have good electrical conductivity, the first metal nanoparticles are diffused and attach to the surface of the second metal nanowire to allow the surface of the second metal nanowire layer to be rough to block the light refraction so that the first metal nanoparticles and the second metal nanowire layer have high light transmission and heat stability and can ensue the continuous stability of the first package layer light transmission thermal conductivity; through combination of the advantages of the two, the first package layer can ensure the continuous stability of the light transmission thermal conductivity of the device while timely emit the heat emitted by the device so as to improve the device life.

The invention discloses a preparation method and device for artificial crystal synthetic mica. The method and device provided by the invention provide reliable guarantee for obtaining high-quality synthetic mica. In addition to being used as synthetic mica, each component in the raw material for preparing synthetic mica provided by the invention also has the function of removing impurities in the raw material, which lays a good foundation for forming synthetic mica and obtains high-quality synthetic mica.

The invention relates to the technical field of film adhesive tape materials, in particular to an anti-oxidation and environment-friendly protecting film and a preparation process thereof. The protecting film adopts a double-layer structure, wherein the surface layer of the protecting film is an LDPE (low-density polyethylene) film, the bottom layer of the protecting film is a VMPE (vacuum metallized polyethylene) film, a double-component ester-soluble compound adhesive is applied between the surface layer and the bottom layer of the protecting film, and a waterborne acrylic ester pressure-sensitive adhesive is applied to the bottom surface of the bottom layer of the protecting film. The advantages that a polyethylene material is easy to degrade and recycle are utilized, the production cost is greatly reduced, the resource waste is reduced, the environment-friendly protecting film is obtained, and the demands for sustainable development in the market are met.

The invention provides a test experiment device for flow field in a rotating reducing round tube. The problems of poor strength and difficult rotating reducing round tube refractive index compensation of a flow field test organic glass reducing round tube in existing experiment devices under the condition of wall rotation are solved. The test device for flow field in the rotating reducing round tube comprises a reducing round tube unit, a supporting and connecting unit, a power and transmission unit and a refractive index compensation unit. The reducing round tube unit is composed of an overflow tube, an overflow mouth, a tangential inlet plate, the organic glass reducing tube, a cone tube and a tail tune in connection in order through flanges. The power and transmission unit comprises a motor, a transmission shaft and a transmission belt, is used for driving the rotation of the reducing round tube. The supporting and connecting unit comprises a bearing, a bearing seat, a support rail, a drive shaft support and the like, and is used for supporting the reducing round tube and the drive shaft and connecting and sealing pipelines. The refractive index compensation unit is arranged an organic glass segment of the reducing round tube to realize laser refractive index compensation.

The invention discloses an extra wide angle lens which comprises an aperture slot, a lens set composed of six spherical glass lenses and a lens cone. The lens set comprises the first lens, the second lens, the third lens, the fourth lens, the fifth lens and the sixth lens, wherein the first lens, the second lens, the third lens, the fourth lens, the fifth lens and the sixth lens are coaxially arranged in sequence from the object side to the image side. The first lens and the second lens are meniscus lenses with negative focal power and protruding to the object side, the third lens and the fourth lens are double convex spherical lenses with positive focal power, and the fifth lens and the sixth lens are glued so that a lens element with positive focal power can be formed; the aperture slot is located between the third lens and the fourth lens. The view angle of the extra wide angle lens can reach the extra wide angle of 170 degrees. Machining of the lens is easy to achieve, cost is low, and the extra wide angle lens can satisfy the requirement for the high definition quality.

The invention provides a cultivation method for improving the soybean yield potential, and relates to the field of soybean cultivation. A narrow-row close planting technology is adopted as a seeding manner, two rows of soybeans are planted on a 32 cm ridge, the soybeans are alternately planted, the distance between adjacent seed holes of the soybeans is about 17 cm, soybean seedlings have enough growth space, soybean seedling leaf overlapping is avoided in an alternate seeding manner, light and air can enter the bottoms of the seedlings, the light transmission and ventilation are high, and theyield is obviously increased; an alternate sowing machine sowing manner is adopted, the seed holes can be evenly distributed in an alternate manner through two sets of boot-type sowing heads front and back, and the distance between the seed holes is guaranteed; and two sets of boot-type seeding plowshares are connected through a locking adjusting mechanism, so that the front-back distance and theleft-right distance between the two sets of seeding plowshares can be changed and can be adjusted according to seeding requirements. Compared with a special seeder, the adaptability is high.

The invention discloses a preparation method of a medicine-carrying soft corneal contact lens. The preparation method comprises the following steps: sequentially adding a methylacrylic acid-beta-hydroxy ethyl acrylate prepolymer, ethylene glycol dimethyl acrylate (EGDMA), azodiisobutyronitrile (AIBN) and medicines into a solvent, uniformly stirring, coating the obtained slurry to a plate with a round hole, then transferring and printing the slurry to the surface of a male die, and then putting the plate into an oven, and heating and curing; repeating the operation to obtain a medicine film with different layers; and after uniformly mixing methylacrylic acid-beta-hydroxy ethyl acrylate (HEMA), methylacrylic acid, N-vinyl pyrrolidone (NVP), EGDMA and AIBN, weighing the mixed solution in a female die, then further embedding the male die printed with the medicine film into the female die, then putting the female die in the oven, curing, and turning to form a sheet to obtain the medicine-carrying soft corneal contact lens. The medicine-carrying soft corneal contact lens prepared by the preparation method disclosed by the invention is strong in transmission of light, long in drug sustained release period, stable to release and high in bioavailability.

A glass cleaning device capable of cleaning corners of a glass window relates to the technical field of glass and comprises a shell, and movable blocks are movably connected to the periphery of the shell. The invention discloses the glass cleaning device capable of cleaning corners of glass windows. A movable rod is matched with a brush for use; during glass cleaning, one corner of the cleaning device coincides with a corner needing to be cleaned. At the moment, the two edges corresponding to the corner extrude the movable blocks on the corresponding edges into the shell, so the first contactcorresponds to the second contact, and a first electro-magnetic device, a second electro-magnetic device and a motor at the corresponding corners are electrified; the first electro-magnetic device andthe second electro-magnetic device repel each other; the second electro-magnetic device can move outwards to drive the motor and the brush to move outwards, the brush extends out of the shell while rotating to clean the corner of the glass window, and therefore the effect of cleaning the corner is achieved, the cleaning effect of the glass window is better, light transmittance is higher, and theappearance is effectively improved.

The invention provides a disposable endoscope sheath with a replaceable protrusion at the front end and an adjustable endoscope sheath length. The disposable endoscope sheath comprises an endoscope sheath body, wherein one end of the endoscope sheath body is connected with a telescopic endoscope bridge, and the other end of the endoscope sheath body is connected with a sheath pipe; the sheath pipe comprises a sight glass cavity and an instrument channel, and the sight glass cavity and the instrument channel are independent from each other; a window is of an arc shape, an inserting groove is formed in the lower portion of the front end of the signal glass cavity, and a stopping platform is arranged behind the inserting groove; the replaceable protrusion is arranged in the inserting groove; a groove and a sealing ring are arranged on the telescopic endoscope bridge, a limiting inserting piece is arranged in the groove, a clamping hole is embedded into the endoscope sheath body, and the limiting inserting piece is clamped by the clamping hole; a pill ring sleeve is arranged on the endoscope sheath body, a zigzag adjusting clamping block is arranged in an inner cavity of the pull ring sleeve, and is used for adjusting a pull ring; a lifting mechanism is arranged in a flange, the lifting mechanism is connected with a pull wire, the pull wire is connected with the pull ring through a connecting block, and the lifting mechanism comprises two flat-strip-shaped panels which are movably connected. The disposable endoscope sheath has the advantages that the structure is simple, the range of adjustment angles of surgical instruments is wide, operation is convenient, and connection is smooth and firm.