76results about How to "Achieve conservation" patented technology

The invention discloses a washing and sweeping vehicle with a double-circulation filter system. The washing and sweeping vehicle comprises a vehicle chassis, a draught fan, a suction air duct, a suction pipe, a suction plate, a brush plate and a water spraying device. According to the double-circulation filter system, a sewage box is connected with a first-stage water pump through a pipeline, the first-stage water pump is connected with a second-stage water pump through a pipeline, the second-stage water pump is connected with one or more filters. The filter is connected with the sewage box through a pipeline. A pressure regulation valve is arranged on the connection pipeline between the filter and the sewage box. The connection pipeline between the first-stage water pump and the second-stage water pump is connected with the connection pipeline between the filter and the pressure regulation valve through a pipeline. The clear water outlet of the filter is connected with a clear water box through a pipeline. The filter is a ceramic membrane filter which comprises a ceramic membrane pipe arranged in a sealed shell. The two ends of the sealed shell are used as a sewage inlet and a sewage outlet respectively to be connected with pipelines. A clear water outlet is formed in the sealed shell. By means of the washing and sweeping vehicle, the effective working time of environmental sanitation devices can be greatly prolonged, the sewage discharge amount can be decreased, and the utilization rate of water resources is increased.

The invention relates to a modular splicing type copper alloy stretching net box and n assembling method thereof. The modular splicing type copper alloy stretching net box comprises a vertical main stressing high-strength polyester fiber belt main framework tape standard part and a horizontal secondary stressing high-strength polyester fiber belt secondary framework tape standard part which are fixed at a crisscross connecting point to form a grid shaped single-side net box tape framework which has the characteristics of flexibility and elasticity; a prefabricated copper alloy stretching net standard module is assembled into each frame of the grid shaped single-side net box tape framework through a prefabricated quick connecting part to form the modular splicing type net box body single-edge side net; two side edges of the single-edge side net are connected through the quick connecting part, or a plurality of single-edge side nets are provided with corner flexible connecting adapting standard parts and bottom nets and then assembled to be a copper alloy stretching net box body. The modular splicing type copper alloy stretching net is applicable to modular and standard production and convenient to be quickly mounted in the sea; a marine breeding net can be maintained well and prevented from being attached by marine fouling organisms; the inside and outside water of the net box body can be exchanged well.

The invention discloses a preparation method of concrete with the functions of reinforcing, internal curing and shrinkage compensating. The concrete comprises the following raw materials: in percent by mass, 8-17.5% of ordinary Portland cement, 28-41% of machine-made sand, 39-45% of cobblestone, 0.75-1.5% of silica fume, 2-4% of mineral powder, 0.3-0.65% of a water reducing agent, 0.5-1.5% of an internal curing agent, 0.03-0.05% of an organic early strength component and 5-7% of water. The concrete is obtained through mixing, pouring and curing of the raw materials. A special internal curing agent is obtained through mixing of the internal curing agent and the organic early strength component, and the special internal curing agent has the characteristics of high water absorption, high water retention and controlled release water, and provides a continuous and effective early internal curing effect for the concrete, so that the risk of early shrinkage cracking of the concrete is reduced.

The invention belongs to the technical field of bridge monitoring, and particularly relates to a bridge health monitoring early warning system and a working method thereof. The bridge health monitoring early warning system comprises a processor module, and a bridge detection module, an environment detection module and an early warning module which are separately connected with the processor module; the bridge detection module is suitable for detecting state data of a bridge; the environment detection module is suitable for detecting environmental parameters of the bridge; when the state data and / or environmental parameters of the bridge conform to corresponding threshold values, the processor module controls the early warning module to perform the early warning action, so that the risk prediction capability can be improved, the bridge can be effectively prevented from being further damaged by passing vehicles, the accident risk can be reduced, and the maintenance of the bridge can alsobe realized.

The invention mainly aims to provide a cement-based cementing material suitable for an environment of-10 DEG C to-30 DEG C and a construction method and application of the cement-based cementing material. The material comprises the following components in parts by mass: 0-5 parts of anhydrite; 15-25 parts of sulphoaluminate cement; 0.1-0.3 part of a water reducing agent; 0-0.3 part of a water-retaining agent; 0.1-0.3 part of a retarder; 0.1-0.3 part of an early strength agent; 55-75 parts of sand; 1-3 parts of an antifreezing agent and 7-12 parts of water. The technical problem to be solved isthat the existing cement-based cementing material cannot be subjected to cold material on-site heating-free mixing and construction under the negative temperature condition. The use requirement in anextreme negative temperature environment can be met by controlling the freezing point of a mixing solution, promoting cement hydration and other technical measures and adjusting the component proportion of the cementing material, and the purposes of direct mixing and pouring of cold materials in a low-temperature environment of-10 DEG C to-30 DEG C and heating-free maintenance are achieved; the cement-based cementing material does not need additional special curing measures such as heating curing and is high in strength development speed and low in cost and does not influence engineering progress and is more practical.

The invention discloses a combined anti-seismic pier column and a template-free construction method thereof. The combined anti-seismic pier column comprises a pier column base for providing supportingforce for a composite pier column; and the composite pier column which is fixed to the upper portion of the pier column base and comprises an outer wrapping sleeve and a pier body, wherein the pier body is sleeved in the outer wrapping sleeve, the outer wrapping sleeve is made of ultrahigh-toughness concrete, and the pier body is formed by pouring micro-expansion concrete. The composite pier column structure has good anti-cracking capacity and anti-seismic energy absorption capacity.

The invention discloses a noninvasive enhancement and release rescue technique which includes the steps: first, placing high-quality aquatic animal fries and fingerlings into anti-flow velocity ecological conservation release equipment, and performing drug rehabilitation therapy and natural water simulated adaptation training in a natural water area to be released; second, placing rehabilitated fries and fingerlings into the equipment for conservation (breeding), performing comprehensive adjustment such as improvement of specifications, physical abilities, disease resistance and wild-exercising return adaptability and making first-phase preparations before enhancement and release; third, performing non-contact and noninvasive direct release under the combined action of an automatic liftingdevice and a release device system on the equipment at any time when detecting that the fries and fingerlings meet release conditions. The high-quality aquatic animal fries and fingerlings are artificially bred fries and fingerlings for a scientific research institution. Safe and controllable enhancement and release rescue can be performed in a natural complex water area environment, an experimental platform can be provided for the scientific research institution, cost can be saved, and the comprehensive efficiency of enhancement and release rescue can be improved.

The invention provides a method for curing bottom plate concrete of a nuclear island. The method is characterized by comprising the following steps of: carrying out heat and humidity insulation by using wet gunny bags in the heating stage; alternatively paving plastic films and gunny bags before the concrete is about to enter the cooling stage; and finally paving geotextiles for heat insulation in the cooling stage. The method for curing the bottom plate concrete of the nuclear island, provided by the invention can be used for curing a huge and large concrete bottom plate of the nuclear island of a million-kilowatt above nuclear power plant.

The invention belongs to the field of building materials, and specifically relates to a production method of bricks. The production method of bricks comprises the following steps: 1, preparing equipment and materials; 2, stirring and mixing the materials; 3, forming bricks; 4, curing the bricks; and 5, detecting and drying the bricks. The production method of bricks provided by the invention has the advantages that a computer is adopted to automatically control the procedures of weighing, mixing, stirring and compression molding, and the productive process is automated, so that the time is saved, and the production efficiency is high; when the bricks are subjected to steam curing, solar energy is utilized to heat hot water, and thus a fuel is saved; the steam curing and the productive process of bricks do not generate waste water, exhaust gas and waste residue, the energy is saved, and the production method has an environment-friendly effect.

The invention discloses a high-frequency current heating and maintaining method for reinforced concrete component production. In the reinforced concrete component production process through the high-frequency current heating and maintaining method, when a reinforced concrete component needs to be subjected to concrete maintaining, a high-frequency current generation device is used for generating high-frequency current loaded to a steel bar or a heating coil, accordingly, the high-frequency current is converted into heat, and heat obtained through conversion acts on the concrete of the reinforced concrete component. The high-frequency current is converted into heat so that the whole reinforced concrete component can be heated, water contained in the concrete of the reinforced concrete component is vaporized through temperature rise, and therefore by means of the high-frequency current heating and maintaining method, the solidifying period of the concrete of the reinforced concrete component can be shortened, the concrete intensity of the reinforced concrete component is improved, and the reinforced concrete component production efficiency is improved. Meanwhile, compared with a high-temperature steam maintaining technology in the prior art, the high-frequency current heating and maintaining method is more environment-friendly, more energy is saved, cost is lower, and convenienceis higher.

The invention provides a concrete curing system, and belongs to the technical field of concrete product production equipment. The concrete curing system comprises a curing area, a taking area, a placing area and a transfer area. The curing area is provided with multiple curing units, the taking area is provided with a concrete product to be cured, the concrete product is stored in a die, the placing area is used for storing the cured concrete product and the die, a transfer area is provided with a child-mother vehicle, the child-mother vehicle comprises a child vehicle and a mother vehicle which can be separated, the child vehicle is provided with a taking and placing mechanism, the child vehicle is aligned to an inlet of the taking area or the placing area or any one curing unit through the mother vehicle, and the child vehicle is used for entering the taking area, the placing area or any one curing unit for taking or placing operation. By means of the concrete cutting system, the concrete product is cured in a mechanical way, and compared with existing workshop type curing, the efficiency is improved, and safety of operators is ensured.

The invention discloses a method for repairing and conserving a disease inoculated tobacco field. The method comprises the following steps: 1) land smoothing and diseased plant residue removal; 2) killing of harmful pathogens: A, water retention of the tobacco field; B, broadcasting application of an alkaline bactericide; C, water flooding; and D, basking and freezing of upturned soil; 3) soil remediation: A, selection and preparation of soil beneficial microorganisms; B, raking diminishing and raking flattening of the upturned soil; C, irrigation; 4) health cultivation; and 5) loop processing. Hosts are eliminated through land leveling diseased plant residue removal, water flooding and deep tillage are carried out, alternate basking and freezing of the upturned soil, which fully utilize the strong ultraviolet rays in the daytime and the low temperature at night are carried out to maximally kill the harmful pathogens, then inoculation of the soil with the beneficial microbial bacteriais carried out to restore the health of the soil, and finally health cultivation is carried out to achieve soil conservation.

The invention provides concrete experiment maintenance equipment and a control system thereof. The concrete experiment maintenance equipment comprises a maintenance box, a computer, an automatic measurement and control system and a wireless temperature measurement device, wherein a cavity body and an equipment control case are arranged in the maintenance box, a concrete sample, a first temperature sensing device and a heating membrane are arranged in the cavity body, and the heating membrane is arranged on the side wall of the cavity body. The first temperature sensing device and the heating membrane are respectively and electrically connected with the equipment control case. A second temperature sensing device is arranged in site operation construction member concrete, and the wireless temperature measurement device is electrically connected with the second temperature sensing device. The computer sends a command according to real-time temperature measured in the site operation construction member concrete and through the automatic measurement and control system, and enables the heating membrane to synchronously adjust maintenance temperature in the maintenance box so as to achieve the aim that the concrete sample in the maintenance box and the site operation construction member concrete are maintained under the condition of same temperature, and thus reduce the gap in temperature process strength development of concrete sample strength and the site operation construction member concrete.

The invention belongs to the field of coastal zones, ocean engineering and ocean environmental protection engineering, and particularly discloses a mangrove forest ecological restoration method which comprises the steps that a restoration area is determined, and mangrove forest habitat investigation is conducted; carrying out restoration area classification based on habitat survey results; the restoration planting comprises basic environment restoration and adaptive planting, and the basic environment restoration comprises the following steps: cleaning damaged bare land in the damaged mangrove forest area, removing mud flat garbage and stones, then removing surface soil with the thickness of 25-50cm, leveling the damaged bare land, and carrying out soil surface treatment on the damaged bare land; and a degradable anchor rod or a degradable anti-collapse net is adopted to carry out roughening and anchoring treatment on a local collapse area, so that the damaged area is prevented from sliding down. According to early-stage research and experiment research results, a reasonable restoration strategy is adopted for the mangrove forest land degeneration problem, the basic environment and the planting environment of the mangrove forest are effectively improved, and conservation and restoration of the degenerated mangrove forest are achieved.

The invention provides a sprayer head cleaning device and a printing machine, and relates to the technical field of cleaning equipment. The sprayer head cleaning device comprises a shell and an ink scraping assembly, an ink stack, an ink pump and a detection assembly which are arranged in the shell; the ink scraping assembly comprises a scraper blade, a power mechanism and a transmission shaft, one side of the scraper blade is connected with a shaft body of the transmission shaft, the input end of the transmission shaft is connected with the output end of the power mechanism, and the transmission shaft drives the scraper blade to do reciprocating rotation motion around the transmission shaft under driving of the power mechanism; and the detection assembly is used for controlling the powermechanism to rotate in the first direction or in the second direction, the scraper and the ink stack are arranged in parallel, and the ink stack communicates with the ink pump through an air pipe. When the sprayer head is cleaned through the sprayer head cleaning device, manual operation is not needed, halting is not needed, automatic cleaning and sprayer head maintaining can be achieved, the printing efficiency is improved, the scrap rate of the sprayer head is decreased, and the cost is reduced.

The invention relates to full-automatic stone ground cleaning, renovating, crystallizing and maintaining equipment and method, and belongs to the technical field of cleaning equipment. The full-automatic stone ground cleaning, renovating, crystallizing and maintaining equipment comprises a walking locomotive, wherein a dust collection assembly is arranged between the front end of the walking locomotive and the ground, a spraying assembly is arranged on the side, which is close to the tail end of the walking locomotive, of the dust collection assembly, a sewage collection assembly is arranged on the side, which is away from the dust collection assembly, of the spraying assembly, a cleaning and grinding assembly is arranged between the sewage collection assembly and the spraying assembly, a drying assembly is arranged on the side, which is away from the cleaning and grinding assembly, of the sewage collection assembly, and a maintenance assembly is arranged on the side, which is away from the cleaning and grinding assembly, of the drying assembly. The equipment has the effect of thoroughly cleaning and maintaining stones.

The invention relates to a streamside ecological percolation and pollution intercepting pool equipped with an oxygen releasing material. The pool comprises a pool body 4, and the bottom part of the pool body is provided with a draining pipeline 10; the pool body 4 is provided with a gravel layer 9, an earthwork cloth 8, a packing layer 7, and a water plant support 16 from bottom to top in order; the water plant support 16 supports water plants 6, the packing layer 7 comprises a first oxygen releasing material layer, a first anthracite and zeolite mixing layer for hanging activated sludge, a second oxygen releasing material layer, a second anthracite and zeolite mixing layer for hanging activated sludge, and a third anthracite and zeolite mixing layer for hanging microalgae from bottom to top. The product comprehensively utilizes interception and adsorption of filling materials, purification effects of water plant roots, biodegradation function of activated sludge and microalgae, oxygenreleasing and adsorbing capability of the oxygen releasing material for carrying out pollution intercepting of river banks, solving rainwater runoff pollution of river water body, reducing pollutionload of river due to entrance of non-point source pollution with good landscape effects, and improving surrounding environments.

The invention discloses a concrete hoisting system for buildings. The concrete hoisting system for the buildings comprises a base, a material box, a feeding barrel and a steam generator. The materialbox is arranged on one side of the top of the base in a welded manner. The feeding barrel is fixedly welded to one end of the material box. A spiral material-pushing rod is installed in the feeding barrel through bearings. A rotary motor is installed at the top end of the feeding barrel through bolts. The driving end of the rotary motor is connected with a rotary shaft of the spiral material-pushing rod. One side of the bottom of the material box is connected with the feeding barrel in a penetrating manner. A slope type material groove is formed in the top inside the material box. Stirring rods are installed in the slope type material groove through bearings. A driving motor is installed and arranged at the bottom of the material box in an embedded manner. The driving end of the driving motor is connected with a rotary shaft of the stirring rods. A groove cover is arranged on the top of the slope type material groove in a covering manner. By means of the concrete hoisting system for the buildings, debugging of concrete hoisting discharging work can be more flexible, curing and mixing uniformity of the concrete can be achieved integrally, and the use quality of the concrete is improved greatly.

The invention relates to the technical field of hydraulic concrete, and particularly relates to a hydraulic concrete variable-temperature curing method and device. The hydraulic concrete variable-temperature curing method is used for curing hydraulic concrete in a curing box in a variable-temperature environment, and a temperature sensor, a humidity sensor and a water spray device are installed in the curing box. The hydraulic concrete variable-temperature curing method comprises the steps of receiving real-time temperature, which is sent by the temperature sensor, in the curing box, adjusting the temperature in the curing box on the basis of the real-time temperature according to set temperature corresponding to each preset moment, receiving real-time humidity, which is sent by the humidity sensor, in the curing box at the same time, and controlling the water spray device to adjust the humidity in the curing box according to the real-time humidity, so that the temperature and the humidity in the curing box are adjusted so as to simulate an actual environment, the hydraulic concrete is cured in the variable-temperature environment, and the performance index of the hydraulic concrete is close to the practical application environment.

The invention discloses a prestressed concrete pipe pile curing device which comprises a curing pool, a steam generator, a preheating box and a cooling water tank. A sealing cover is arranged at the upper end of the curing pool, an air outlet of the steam generator is connected with a steam pipe, and the steam pipe communicates with the interior of the curing pool through an annular spraying mechanism. A water inlet of the steam generator is connected with a steam water pumping pipe, the steam water pumping pipe communicates with the interior of the preheating box, and a heat recovery mechanism is arranged in the preheating box. The prestressed concrete pipe pile curing device has the advantages that by arranging a surrounding pipe, hot steam generated by the steam generator is transferred into the surrounding pipe through the steam pipe, then sprayed into the curing pool through steam spraying pipes and rapidly diffused for heat transfer in water flow in the curing pool, so that the temperature in the curing pool is stably increased, the steam and water are combined to transfer heat so that local overheating caused by direct impact of steam can be avoided, heat dispersion is relatively uniform, and curing of a concrete pipe pile can be better achieved.

The invention provides a pouring die shaping device used for a cable groove of a tunnel side-ditch. The shaping device comprises a movable support (1) acting in a tunnel, an adjusting rod (4), and a positioning device. The adjusting rod is linked to the movable support (1) in an adjustable manner and is linked to a template (3). The positioning device is arranged between the template (3) and the movable support (1) and is used for fixing a part of the template (3). According to the invention, the movable support (1) and the adjusting rod (4) are used for adjusting positions of the template (3) so as to form the template (3) into a cable groove, and the positioning device is used for fixing the template (3) so as to prevent the template (3) from shaking, so steel dies are not combined any more, thereby increasing pouring die shaping efficiency and pouring quality of the cable groove.

The invention relates to a rigid rotation experimental apparatus for spiral air tracks. The apparatus comprises an air track, a plurality of light gates, a slider with a shade plate, an air source and a time recorder. The apparatus is characterized in that the air track is composed of a front linear air track, a rear linear air track, left concentric semi-arc air tracks and right concentric semi-arc air tracks; the light gates are disposed at the front end and rear end of the air track and the connections of the air tracks. During an experiment, rigid motion parameters are analyzed by recording the time of the slider passing the photoelectric gates. The air track experiment and the rigid rotation experiment are combined, rotational energy of a whole motion system is conserved, and related physical quantities of rigid curvilinear motion with different rotational radiuses are studied through the concentric semi-arc air tracks. Rigid linear motion and curvilinear motion are combined through the linear segments of the air track, the relation between the linear motion physical quantities of an object and its curvilinear motion physical quantities is visualized, and the apparatus is suitable for physics teaching.

The invention relates to a spray wetting type concrete curing system which is applied to the field of concrete pouring. The spray wetting type concrete curing system comprises a spray frame, a plurality of atomized water nozzles, a water feed pump and an air blower. A water feed pipe is arranged in the spray frame and communicates with the output end of the water feed pump. A mounting plate is fixedly connected to the spray frame. The mounting plate is provided with a plurality of mounting grooves. An air guide plate is connected to the sidewall of each mounting groove. An air guide frame is parallel to the air feed pipe, and the downward sidewall of the air guide frame is provided with an air supply hole. The air guide frame communicates with the output end of the air blower. One side ofa concrete member is paved with a permeable formwork. The permeable formwork is made of a material internally provided with a loose porous structure. The spray wetting type concrete curing system is provided with the permeable formwork instead of a traditional concrete poured formwork, so that curing of the concrete member is realized without formwork removal, and the phenomena that the concrete member is short of curing without formwork removal, the strength is reduced, and slag falling and even cracking occur to the concrete member are reduced.

The invention discloses an European building concrete carving decorative modeling construction device and a construction method thereof. The construction device comprises a hollow pipe which is buried into concrete, a water container, a radiator and a pump, wherein the surface of the hollow pipe is coated with a release agent layer; binding heads are arranged at the two ends of the hollow pipe; one end of the hollow pipe is communicated with the water container through a pipeline, a drainage control valve and the pump, and the other end of the hollow pipe is communicated with the water container through a pipeline and the radiator; an European carving outer mold which is coated with the release agent layer is arranged on the outer side of the hollow pipe. According to the construction device, the temperature of circulating water in the hollow pipe can be adjusted and controlled, so that concrete curing is facilitated, and the durability of a concrete model is enhanced; moreover, a hollow pipe inner mold can be taken out and used circularly, so that the construction cost can be saved; meanwhile, after the hollow pipe is taken out, a hollow structure is formed in the concrete model, so that the deadweight and internal force of the concrete model are lowered effectively, and load gaps are reduced. The construction method is easy to operate, and is easy for construction.

The invention discloses a sponge city road water storage device. The system comprises a water treatment device, floor tiles combined to form a road surface and a communicating pipeline, the communicating pipeline is connected with the water treatment device and the floor tiles; the floor tile comprises a permeable layer, a water storage layer and a water outlet layer, wherein the permeable layer,the water storage layer and the water outlet layer are sequentially arranged from top to bottom; a plurality of water permeable holes are formed in the water permeable layer; the water storage layer comprises a plurality of sponge balls, the sponge balls and the water permeable holes are arranged in a one-to-one correspondence mode and are fixed to the water outlet layer at the same time, the water outlet layer is provided with a plurality of water through holes staggered with the water permeable holes and is arranged below the water permeable layer in an up-down lifting mode, and the communicating pipeline is arranged below the water outlet layer. In the sponge city road water storage device, through the combined action of the water treatment device, the communicating pipeline and the floor tiles, the effect of sucking rainwater on the road surface and then recycling the rainwater can be effectively achieved.

The invention discloses efficient constant-temperature and constant-humidity tunnel automatic maintenance equipment. The equipment comprises at least two maintenance trolleys arranged at an interval,each maintenance trolley is provided with a support matched with the shape of the arch face of a tunnel, a sealing air bag is fixed between every two adjacent supports, after the sealing air bags areinflated, a sealed space is formed between the sealing air bags and the inverted arch surface of the tunnel, the sealing space is connected with a steam generator, and the steam generator injects steam into the sealing space to maintain the inverted arch surface of the tunnel. According to the efficient constant-temperature and constant-humidity tunnel automatic maintenance equipment, the sealingspace is formed between the inflated air bags and the inverted arch face of the tunnel, steam is inflated into the sealing space, steam is used for maintenance, the problem that in the prior art, water resources are wasted is solved, and the problem that in the prior art, the requirements for water pressure, water amount, tunnel height, tunnel depth and the like are limited is solved.

The invention belongs to the field of road maintenance and construction, and particularly relates to the structure of a foamed asphalt cold-recycled pavement and a construction technology thereof. According to key points of the technical scheme of the structure, a reinforcing layer, a protective layer, a recycled asphalt concrete layer and an asphalt concrete layer are included successively from bottom to top, wherein the reinforcing layer is made from a mixture of gravel and cement, and the protective layer includes a calcium oxide layer and a biodegradable plastic layer encapsulating the calcium oxide layer. The reinforcing layer is reinforced and leveled with the gravel and the cement, later laying of the protective layer is convenient, the calcium oxide layer of the protective layer isencapsulated in the biodegradable plastic layer, and calcium oxide is prevented from being affected with damp during construction. Biodegradable plastics degrade after a certain time, the calcium oxide layer is exposed, water in the air or from melted snow penetrates into the calcium oxide layer and reacts with calcium oxide to form calcium hydroxide, heat is released, the temperature of the pavement is increased advantageously, and then frost resistance and crack resistance of the pavement under the low temperature are improved.

The invention discloses a protection casing of a windshield wiper. The interior of a tubular casing is provided with a wetting agent which is arranged at the lower end of the stop position of the windshield wiper, so when the windshield wiper is stopped, rubber with main function is inserted into the protection casing through an opened groove, and is cured through the wetting agent in the protection casing. Meanwhile, the opening of the outer casing is provided with a rubber sealing strip, so the function of scraping dirt on the rubber strip of the windshield wiper is realized, the good sealing performance of the sealing strip is ensured, and the effect on the protection caused by the over-fast evaporation of the wetting agent is prevented. The protection casing has the advantages that the service life of the rubber strip of the windshield wiper is greatly prolonged, and the social benefits and economic benefits are good.

The invention discloses an allicin skin repairing essence liquid and a preparation method thereof. The allicin skin repairing essence liquid includes the following ingredient: allicin, lemon liquid, achamomile extract, licorice extract, deep sea extracted sargassum pallidum extract, ginseng extract, a polypeptide mixed solution and sclerotium gum. The preparation method comprises steps as follows: allicin preparation, mixing of the main ingredients, stabilization of the ingredients, and sterilization and packaging. By using allicin as the main ingredient, the prepared essence liquid has powerful anti-oxidation and anti-aging, moisturizing and repairing, sterilizing and skin-calming functions; and by adding ingredients such as the ginseng extract, skin texture can be effectively improved.