77results about How to "Good for growth" patented technology

Polynucleotides encoding mammalian ECM signalling molecules affecting the cell adhesion, migration, and proliferation activities characterizing such complex biological processes as angiogenesis. chondrogenesis, and oncogenesis, are provided. The polynucleotide compositions include DNAs and RNAs comprising part, or all, of an ECM signalling molecule coding sequence, or biological equivalents. Polypeptide compositions are also provided. The polypeptide compositions comprise mammalian ECM signalling molecules, peptide fragments, inhibitory peptides capable of interacting with receptors for ECM signalling molecules, and antibody products recognizing Cyr61. Also provided are methods for producing mammalian ECM signalling molecules. Further provided are methods for using mammalian ECM signalling molecules to screen for, and/or modulate, disorders associated with angiogenesis, chondrogenesis, and oncogenesis: ex vivo methods for using mammalian ECM signalling molecules to prepare blood products are also provided.

The invention relates to a selenium-rich special biological organic compound fertilizer for producing functional farm products. The compound fertilizer is prepared by the following steps of: stirring and mixing a mycelium-amino acid mother solution, humic acid, animal manure, probiotics and compounds containing selenium and zinc serving as major raw materials, matching raw materials such as nitrogen, phosphorus and potassium, a high-strength water absorber, crop straw, stevia residues and the like in a bioreactor; fully fermenting and dehydrating till the water content is controlled at about 14 percent; and smashing to 50-75 meshes, and pelletizing. A formula can be used for producing a culturing base fertilizer for functional farm products containing beneficial trace elements such as selenium-rich paddy rice, selenium-rich wheat and selenium-rich tea; and by applying the fertilizer reasonably, the crop yield can be increased by 10-50 percent, the selenium content of a product can be up to 100-500 mcg/kg, and the requirements of national selenium-rich farm products are met.

The invention discloses a high-efficiency water-changing fry breeding pool comprising a breeding pool body, partitions, a moving plate, filter plates, an isolation screen plate, a frame, a lifting device and a moving part. The high-efficiency water-changing fry breeding pool is characterized in that two sets of the partitions are disposed in the middle of the breeding pool body; the breeding poolbody is divided into two parts of a first breeding barn and a second breeding barn; a through hole allowing fries to pass through is opened in the middle of the partition; the moving plate is connected with the lifting device which is disposed on the frame; the frame is arranged above the breeding pool body; two sets of the partitions are respectively arranged on the lower portions of the first breeding barn and the second breeding barn; the end portion of the isolation screen plate is located below the through hole; a first filter plate is located inside the first breeding barn while a secondfilter plate is positioned inside the second breeding barn; a moving part is slidably arranged on the frame. The high-efficiency water-changing fry breeding pool has the advantages of facilitating water changing in the first breeding and second breeding barns, achieving the best breeding environment inside the first breeding and the second breeding barns, and being conducive to healthy growth ofthe fries.

A full-floating frame for culturing the laver in seawater is composed of fixing piles, fixing cables, pulling cables, two pulled floating frames, several netted curtains arranged between two pulled floating frames, several buoy supporters, and floating balls fixed to the both ends of each buoy supporter.

The invention relates to the field of edible mushroom cultivation, and in particular relates to a layered shelf type crop rotation cultivation method of dictyophora indusiata, which is used for solving the problems that continuous cropping cannot be achieved, the management is rough, a great deal of land is occupied and the resource is wasted in conventional artificial dictyophora indusiata cultivation. By adopting the layered shelf type crop rotation cultivation method, anniversary, precise and intensive cultivation of dictyophora indusiata are achieved, the yield and the quality of the dictyophora indusiata are greatly improved, the benefits of planting farmers are increased, and the layered shelf type crop rotation cultivation method is simple and feasible and is easy to popularize.

Disclosed is a harmless mud processing method for a sewage treatment plant. The method comprises that a water retention material is added based on primary mud, the water content of a mud sample is lowered to below 65%, the a cementitious material is added and mixed, the mixture is stirred and mixed evenly and air dried naturally under normal temperature and pressure, and during mixing, the quality ratio of the mud, the cementitious material and the water retention material is 100:(15-30):(0.01-0.05). The method has the advantages that after the mud is processed, the obtained modified material coats harmful bacteria and noxious heavy metals in the mud, such as chromium, lead and mercury, some industrial gypsum such as fluorine gypsum, phosphorus gypsum, titanium dioxide gypsum and desulfurized gypsum has rich malysite, the industrial gypsum and noxious metal elements are subjected to oxidation reaction or reduction reaction, then the toxicity of the mud is reduced, the noxious metal elements can be converted to metal elements with an innoxious valence state, the cementitious material is in the alkali environment, some metals are subjected to complexation easily, indissoluble subsulfate can be produced, and simultaneously, growth and propagation of bacterium can be inhibited effectively under alkali environment.

The invention discloses an intestinal health regulator for fugu rubripes and a preparation method of the regulator, and relates to an aquatic feed additive. The intestinal health regulator for fugu rubripes comprises the following components in percentage by mass: 10%-20% of butyrin, 40%-60% of wall-broken beer yeast powder, 20%-40% of a Chinese herbal medicine extract and 10%-20% of defatted rice bran. The preparation method of the regulator comprises the following step of: uniformly mixing the butyrin, the wall-broken beer yeast powder, the Chinese herbal medicine extract and the defatted rice bran to obtain the intestinal health regulator for fugu rubripes. The preparation method is simple and low in cost. The intestinal health regulator for fugu rubripes has the functions of promoting the intestinal mucosa repair of the fugu rubripes, facilitating the growth of intestinal beneficial bacteria, restraining harmful bacteria, maintaining the health of intestinal mucosa, lowering the morbidity, improving hepatopancreatic health, maintaining the digestive enzyme secretion capacity of gland, improving the activity of the intestinal digestive enzyme, improving the utilization rate of the feed, improving the food consumption of the fugu rubripes and increasing the growth speed of the fugu rubripes.

The invention discloses a biological type nematode-preventing soil conditioner and a preparation method thereof. The biological type nematode-preventing soil conditioner comprises the following components in parts by weight: 20-40 parts of abamectin residues, 20-80 parts of oyster shell powder, and 1-3 parts of microbial agent. The biological type soil conditioner which has a nematode expelling function and is prepared by taking waste residues obtained in producing abamectin as main raw materials, adsorbing a microbial preparation and blending the natural marine biological resource oyster shell powder provides abundant organic matters by using the abamectin residues, improves the soil micro-ecological environment by utilizing the composite microbial preparation with phosphate solubilizing bacteria, potassium solubilizing bacteria, bacillus subtilis and the like, carries out disinfection and desinsection on soil, is capable of regulating the soil acidity and alkalinity by using the oyster shell powder and efficiently preventing and controlling the soil insects and the nematodes, has no chemical residue and is favorable to crop growth. The preparation method of the biological type nematode-preventing soil conditioner, which is disclosed by the invention, has the advantages of simple process and low cost.

An apparatus for preventing and eliminating the viruses in aquatic product alturing is composed of circulating pump and filter box. Said circulating pump has a water inlet communicated to the culturing pool and a water outlet connected with said filter box. Said filter box contains perforated plate, netted plate and filtering chemical fibre layer. It can effectively prevent and eliminate the white spot of prawn.

The invention provides a soilless culture device, which more facilitates the unified management of plant growth and production and facilitates increasing production automatization. A plant fixing bracket equipped with a plant fixing net is placed on chassis to form a cultivation disk and the plant young seedlings are fixed in the grids (plant holes) using the sponge blocks; a duct is sleeved on a communication tube to connect a plurality of chassis 1 with chassis 2 therefore the chassis are communicated with each other and a water pump and a liquid return box are in tandem connection with the chassis, thus the water pump, the liquid return box and the chassis form one tandem circulation loop, and the chassis 1 and 2 are brought into use at the same time and alternatively placed; a water supply device and an air pump are set in the liquid return box and the graduation lines are marked on the inner wall of the liquid return box. The soilless culture device is used for soilless culture production and generates a new plant fixing way and a production management mode.

The invention discloses a quick rooting organic fertilizer for potted flowers and a method for preparing the quick rooting organic fertilizer. The quick rooting organic fertilizer comprises, by weight, rice husk, 20 wt% NaOH solution, shell powder, eucalyptus bark, chicken manure, borax, peat soil, blast furnace coal slag, stigma croci, flos chrysanthemi indici, ammonium phosphate, bean curd residues and an appropriate quantity of water. The quick rooting organic fertilizer and the method have the advantages that problems of possible root rot, withering, plant diseases and insect pests of existing potted flowers due to the fact that the air permeability and the water contents of the existing potted flowers are unevenly adjusted can be solved; flower seeds can be promoted to quickly root by the quick rooting organic fertilizer, and the quick rooting organic fertilizer is favorable for growth of the root systems of the potted flowers; the quick rooting organic fertilizer has certain water retention capacity, accordingly, frequent watering can be omitted, and root rot due to frequent watering can be prevented; the ammonium phosphate and particles of the rice husk are adsorbed after the ammonium phosphate is dissolved, and accordingly sustained-release effects can be realized.

The invention discloses a preparation method of a duck feed capable of improving health of meat ducks. The duck feed is prepared from the following raw materials in parts by weight by smashing and mixing: 50-60 parts of broken rice, 20-30 parts of soybean meal, 40-50 parts of rice bran, 5-8 parts of brewer's grains, 3-5 parts of blood meal, 2-4 parts of bone meal, 3-7 parts of chenopodium album, 2-5 parts of alternanthera philoxeroides, 3-7 parts of calcium hydrophosphate, 3-5 parts of compound amino acid, 0.5-0.7 part of edible salt and 4-6 parts of traditional Chinese medicine additive. The duck feed has the advantages that raw materials are selected, especially the traditional Chinese medicine additive is selected and the usage amount is determined, so that nutrients in the feed are reasonably matched, the health of the meat ducks is improved after eating the feed disclosed by the invention, incidence of diseases such as avian influenza is almost zero, the growth of the meat ducks is facilitated, and no chemical ingredient residue is produced in the meat ducks, so that the quality of the duck meat is improved.

The invention discloses an efficient seedling growing device for rice planting. The efficient seedling growing device comprises a culturing chamber, an opened cuboid structure is arranged at one sideof the culturing chamber, a slide plate is slidably inserted to the side of the culturing chamber, the culturing chamber is divided into a first cavity and a second cavity by the slide plate, severalfixed plates are equidistantly installed on the inner wall of the first cavity in the height direction of the culturing chamber, rectangular ventilation holes and strip-shaped second slide holes are formed in the tops of the fixed plates, a seedling growing pot of a cuboid structure is arranged at the top of each fix plate, a second motor and two second fixed bases are installed at the bottom of each fixed plate, a second lead screw is rotatably connected between every two second fixed bases, and one end of each second lead screw penetrates through the corresponding second fixed bases and is fixedly connected with an output shaft of the corresponding second motor. The efficient seedling growing device can be arranged into many layers, and is very convenient to take and use; meanwhile, a proper culturing environment can be provided, which is beneficial to the growth of rice seedlings.

The invention discloses an indoor microalga culture system. The indoor microalga culture system comprises an opening type culture device, a carbon dioxide supplying device and a light illumination device, wherein the light illumination device comprises a mounting base, a lamp tube and a light source; the mounting base is mounted on the opening type culture device; one end of the lamp tube is mounted on the mounting base, and the other end of the lamp tube stretches into the opening type culture device; the lamp tube is fully filled with heat-transferring liquid. The invention further discloses an indoor microalga culture method; the indoor microalga culture method comprises the following steps: pouring seawater and nutrient salt into the opening type culture device as a culture water body; introducing CO2 gas into the culture water body; after the concentration of microalgae reaches 3.0*10<6>cfu/mL, collecting 55 percent to 75 percent of algae in the culture device; after collecting the algae, supplementing the seawater and the nutrient salt; after 42 days, extracting all the algae; flushing the culture device with an EDTA (Ethylene Diamine Tetraacetic Acid) solution; then flushing the culture device with high-salinity bittern; finally, flushing the culture device with fresh water. According to the indoor microalga culture system and method, disclosed by the invention, the light illumination obtaining quantity in a unit area of the algae is increased; the production efficiency of the microalgae is improved, and energy sources are saved.

The invention relates to the technical field of horticultural infrastructure, and discloses an automatic poor-light-side water sprinkling device for a park based on light-sensitive control. The automatic poor-light-side water sprinkling device for the park based on the light-sensitive control comprises a shell one, and a shell two; a photosensitive component is fixedly connected with the interiorof the shell one; nozzles are movably connected with the interior of the shell one; a gear one is movably connected with the interior of the shell two; a switch is fixedly connected with the interiorof the shell two; a motor is fixedly connected with an inner bottom of the shell two; a rotating rod is fixedly connected with the top of the motor; and a rotating wheel is movably connected with theexterior of the rotating rod. Under interaction between the shell one and the photosensitive component, the shell one of the automatic poor-light-side water sprinkling device for the park based on thelight-sensitive control is always avoided from exposure to the sun in virtue of photosensitive resistance, so that the nozzles always perform water sprinkling on poor-light sides of trees, flower andgrass so as to ensure water absorption by the trees, the flowers and the grass, thereby better benefiting growth of the trees, the flowers and the grass; and moreover, more time and labor waste are saved through the principle of light-sensitive control.

The invention discloses a retractable type slipping-proof planted plant irrigation device for a household balcony. The retractable type slipping-proof planted plant irrigation device comprises an irrigation box, wherein fixing plates are symmetrically and fixedly mounted at front and back on the left side face of the irrigation box; a fixed box is fixedly mounted on the left side face of the irrigation box and is located below the fixing plates; the fixed box is internally provided with a water storage cavity with an upward opening; retractable rods can drive a transmission rod to rotate; theretractable rods slide in a spring cavity so that a connection rod rotates; then the connection rod drives a power rod to rotate; a planting pot at the lower side can be driven to move leftwards on sunny days through a hinging rod in a movement mechanism, so that the positions of the planting pots at the upper and lower sides are separated and plants in the planting pots at the upper and lower sides can be illuminated by light; a flowing water outlet can be sealed by a control mechanism through a stopping block on sunny days and the water in the planting pots is prevented from losing through the flowing water outlet; rainwater dropped in the planting pots can flow out through the flowing water outlet on rainy days, and the irrigation device can be fixed on the balcony through a fixing block and a supporting frame.

The invention discloses an unrestricted auxiliary nursery stock fixing frame, which comprises a fixing device, three supporting legs distributed in a circular array are fixed on the fixing device. Thefixing device is composed of a limit frame and a limit ring, and moving and buffering frames are distributed on the limit frame in an array. The moving and buffer frame is fixed between a connectingplate and an internal fixing plate. The moving and buffering frame is provided with a telescopic rod. The upper end of the telescopic rod is hinged on a first U-shaped plate, the lower end of the telescopic rod is hinged on a second U-shaped plate, and the outer part of the telescopic rod is sleeved with a spring. According to the invention, the moving and buffering frame can stretch and retract by using the telescopic rod and the spring after being extruded, and the first U-shaped plate and the second U-shaped plate are used to achieve rotation, so as to avoid the growth of the part locked bya locking rod. The growth of the nursery stock is facilitated. The position of the inner fixing plate can be adjusted by the combination of a screw rod and a thread pipe thread, so that the device can be used for different kinds of nursery stocks.

The invention discloses a manually-put algal reef device. By means of the manually-put algal reef device, the suspension depth of a reef can be controlled, and multiplication can be carried out in the middle layer, the upper middle layer or the lower middle layer of a water sea. The manually-put algal reef device is composed of a buoyancy force device and algal reef supporting bodies hung to the lower portion of the buoyancy force device through connecting ropes; each algal reef supporting body comprises a sunk hemispheric supporting support, a stand column fixed to the middle of the hemispheric supporting support and a plurality of algal reef attachment base blocks arranged on the hemispheric supporting support, connecting rings are arranged at the positions, above the hemispheric supporting supports, of the stand columns, and a plurality of seedling ropes are arranged between the connecting rings and the corresponding hemispheric supporting supports.

The invention relates to the technical field of irrigation devices, in particular to a forestry irrigation device. The forestry irrigation device comprises a base, a water tank is arranged at the topof the base, a water inlet is formed in the left side of the top end of the water tank, a liquid level sensor is arranged at the inner side of the water tank, the liquid level sensor is connected witha controller, a liquid relief box is arranged at the upper side of the water tank, the liquid relief box is connected with the water tank through a water pump, irrigation pipes are arranged at the left and right sides of the liquid relief box respectively, a water collecting box is arranged at the top of the liquid relief box, and the water collecting box and the water tank are connected througha water conveying pipe. By arranging an outer pipe and an inner pipe, due to rotation of the inner pipe, a connecting hole is communicated with a spraying pipe and a drip irrigation opening, and therefore the irrigation pipe can be switched between spray irrigation and drip irrigation; by arranging the liquid level sensor, the device can select different irrigation modes according to the water storage amount inside the water tank, water resources are saved, and meanwhile wood growth is facilitated.

The invention provides a roof greening substrate. The roof greening substrate is characterized in that the substrate is mainly composed of biogas residues, vermiculite, plant fibers, acrylamide-acrylate copolymer crosslinking matter and earthworms. The roof greening substrate is loose, high in water content, sufficient in nutrient and suitable for roof plant growth, and the pH value is neural.

The invention discloses a plant growing lamp position adjusting method and device. According to the device, two or more signal transmitter-receiver sets are arranged on the side wall of a plant growth chamber, each signal transmitter-receiver set comprises two or more sets of transmitter-receiver units, the vertical distance between every two adjacent signal transmitter-receiver units is h, and each transmitter-receiver set comprises signal transmitters and signal receivers; a controller is connected to the transmitter-receiver sets, the controller is connected with a driving mechanism which drives a plant growing lamp, and the plant growing lamp is located above plants. The method comprises the steps of initializing and starting all the signal transmitters and signal receivers, judging and calculating plant height, calculating the distance between the plant growing lamp and plants, and calculating the movement distance of the plant growing lamp. By the adoption of the method and device, plant height can be measured more accurately, and the plant growing lamp can be moved to a position away from plants by an optimal distance.

The invention relates to a collagen material with a local hemostatic or anticoagulant function. A specific amino acid polar group on a collagen peptide chain, such as carboxyl or amino, reacts, and electrical property of the polar group is changed, so that the local hemostatic material promoting blood coagulation or the anticoagulant material preventing the blood coagulation is designed. The collagen material can be implanted to exert the local hemostatic or anticoagulant effect; cells around an injured site can enter the collagen material to grow; and the healing of an injured tissue is facilitated. The method is simple and easy to operate, and the collagen material is especially suitable for industrial mass production and is also very economical.

The invention relates to the technical field of longan plantation, and particularly relates to a longan antibacterial agent and a preparation method thereof. The longan antibacterial agent is prepared from the following ingredients in parts by weight: 40-50 parts of bacteriostatic ingredient, 35-45 parts of sterilizing ingredient, 8-15 parts of carrier, and 2-5 parts of emulsifier. According to the invention, a plurality of plant raw materials are selected, and active ingredients are extracted from the raw materials; and massive formula screening and production verification are carried out so as to obtain an effective formula of the longan antibacterial agent. Mutual cooperation of the ingredients in the formula has effects of dispelling germs, inhibiting the germs, and killing the germs so as to jointly achieve an aim of inhibiting and killing a plurality of the germs. The longan antibacterial agent has the characteristics of high efficiency, broad spectrum and low toxicity, can effectively inhibit and kill bacteria at longan roots, can facilitate the growth of the longan roots, can promote nutrient absorption, and can improve disease resistance and longan output.

The invention provides a culture medium used for batrachospermaceae and application of the culture medium. The culture medium used for the batrachospermaceae is mainly prepared from the main components including NaNO3, K2HPO4, KH2PO4, MgSO4.7H2O, CaCl2, NaCl, a PIV metal solution, a vitamin B12 solution, a vitamin H solution, a vitamin B1 solution, a penicillin-streptomycin solution and distilled water. By utilizing the culture medium, fresh batrachospermaceae algae collected in the wild are artificially cultured in a laboratory, and an indoor living state of the batrachospermaceae is kept. With the adoption of the culture medium provided by the invention, the difficulties that previous batrachospermaceae researches are only limited to wild collection and growth and the batrachospermaceae cannot be artificially cultured, so that subsequent life history observation, molecular biological analysis can not be performed and the like are overcome.

The invention relates to the technical field of light supplement for plant growth, in particular to a light supply system for plant growth. The light supply system comprises a master control board, a control device and a lighting device, wherein the lighting device can switch a spectrum; the master control board is connected with the control device and the lighting device; the control device is used for transmitting a signal of changing a light supply mode to the master control board according to a preset program or received plant height signal; and the master control board is used for controlling the lighting device to switch the spectrum or changing the lighting intensity according to the received signal of the control device. By the system, automatic and intelligent spectrum switching and light intensity adjustment can be achieved; and plant growth is facilitated.

The invention discloses a big data based intelligent irrigation and fertilization system. The big data based intelligent irrigation and fertilization system comprises a data acquisition module, a processor, a data analysis module, a database, a decision module, a display screen, an adjusting module and an executing module; the data acquisition module is used for acquiring land information, irrigation information and weather information, and the land information includes height data, area data and water content data. A fixing plate is rotated through meshing of adjusting racks and sector racksand drives a mounting block to rotate, thereby driving a mounting frame and an irrigation gun head to rotate to adjust the irrigation angle; a threaded rod drives a slider to move, so that the sliderdrives a connecting block to move; a rotating rod rotates when the connecting block changes the position, which changes the angle between the mounting frame and the mounting block, and the change of irrigation distance is realized by adjusting the angle of the irrigation gun head; simple structure and convenient operation are achieved, operation time is saved, and working efficiency is improved.

The invention relates to a slope water and soil conservation structure for ecological landscape restoration and a construction method thereof, and belongs to the field of slope protection. The slope water and soil conservation structure comprises brick bodies and connecting pipes; the brick bodies form a net-shaped structure through the connecting pipes, and the brick bodies are each of an H-shaped structure; connecting grooves are symmetrically formed in the left side faces and the right side faces of the brick bodies, and limiting holes are formed in the connecting grooves; the connecting pipes comprise main transverse pipes, vertical pipes and inserting pipes; the vertical pipes are evenly arranged on the same sides of the main transverse pipes and communicate with the main transverse pipes, and the inserting pipes are arranged on the two sides of the vertical pipes in a staggered mode; water leakage holes are formed in the inserting pipes, and the vertical pipes are arranged in the connecting grooves; and the inserting pipes are inserted in the limiting holes of the brick bodies, and ecological planting holes penetrating through the front faces and the back faces of the brick bodies are formed in the centers of the front faces of the H-shaped structures of the brick bodies. Through arrangement of the connecting pipes, the fixing effect between the brick bodies is improved, water can be replenished to vegetation through the connecting pipes, thus growth of the vegetation is facilitated, and the ecological landscape restoration effect is improved.

The invention discloses an environment-friendly automatic three-dimensional water culturing device. The environment-friendly automatic three-dimensional water culturing device comprises a liquid storage bottle, an air pump, a liquid conveying pipe, a U-shaped pipe, a timer and a plurality of planting bottles, wherein the center of the bottom part of each planting bottle is provided with a central hole matched with a bottle cap opening; the center of the bottom part of the liquid storage bottle is provided with a containing hole matched with the size of the shape of a bottle cap of the planting bottle; the bottle cap opening of the former planting bottle is clamped in the central hole of the next planting bottle; one end of the liquid conveying pipe is arranged in the central hole of the top planting bottle, and the bottle cap part of the bottom planting bottle is clamped in the containing hole; the U-shaped pipe is provided with a liquid storage bottle joint, a liquid conveying pipe joint and an air pump joint; a power supply of the air pump is electrically connected with the timer; each planting bottle is also respectively and internally provided with a fixed planting basket; the left side and the right side of the middle part of each planting bottle are respectively provided with a planting opening; and the bottle cap of each planting bottle is provided with a small hole for dropping liquid. The environment-friendly automatic three-dimensional water culturing device disclosed by the invention not only can meet the need of household water cultured plants, but also can be recycled, is environment-friendly and simple and easy in use.

The invention discloses a corn planting protective shed capable of adjusting the illumination intensity. The corn planting protective shed comprises supporting legs and a top arch-shaped supporting rod, and the two ends of the top arch-shaped supporting rod are each provided with the corresponding supporting leg. By arranging a shading box and a motor, when the illumination intensity is high, a lead screw is driven by the motor, then the supporting rod pulls a fourth moving plate, and the fourth moving plate, a third moving plate, a second moving plate and a first moving plate in the shading box are unfolded in sequence, so that the effect of shading sunlight is achieved, and then illumination in the protective shed is changed; by arranging a top light conversion film and side light conversion films, when the illumination intensity is low, the top light conversion film and the side light conversion films can increase the light utilization rate of corns and facilitate corn growth; and by arranging a top cotton brush, water drops in the protective shed are wiped, it is kept that no water drops are formed in the protective shed, the divergence of the water drops to illumination is reduced, and the labor investment is reduced.