41 results about "Windbreak" patented technology

This utility model relates to the technical field of windbreak and sand-fixing vehicles, and discloses a windbreak and sand-fixing vehicle, including a sand-fixing vehicle, a plow frame, and a plow head, and further includes: a mounting base, which is fixedly installed at the bottom of the plow frame, and a connecting shaft is rotatably installed on one side of the mounting base; in this embodiment of the utility model, by rotating the handwheel at the end of the connecting shaft, the mounting frame on the connecting shaft can be rotated in a circular motion, so that the three sets of plow heads arranged in a triangle at the end of the mounting frame can be rotated and adjusted in position. The plow head adjusted to the lowest position can be used for sand-fixing operations such as plowing the roots or filling ditches. By rotating the handwheels at the top of the two sets of fastening screws, the bottom end of the fastening screw can penetrate into the corresponding positioning through hole. The bottom end of the fastening screw has an anti-slip rubber sleeve to achieve an anti-slip fastening effect with the positioning through hole, thus securing the connected shaft after rotation and adjustment.

This invention relates to a spraying device for defoliants on edible sunflowers and its usage method. The device includes a drone body with a liquid tank in the center. An annular plate is vertically movable along the outer wall of the drone body, and a windbreak plate is slidably connected to the side wall of the annular plate. A first spray pipe is fixedly mounted at the center of the bottom of the drone body. Second spray pipes are rotatably connected to both ends of the first spray pipe, and the other end of each second spray pipe is rotatably connected to vertical plates on both sides of the bottom of the drone body. The rotation of the second spray pipes is synchronized with the raising and lowering of the windbreak plate. Atomizing nozzles are fixedly mounted at the bottom of both the first and second spray pipes. This invention forms a vertical air curtain through the windbreak plate, providing a stable falling environment for the droplets and effectively preventing drift. The inclined spraying of the atomizing nozzles on both sides makes the liquid distribution more uniform and widens the effective coverage area, ensuring that the entire row of crops receives sufficient liquid from the center to the edge, eliminating missed spraying along the row edges, and improving the spraying effect.

This utility model provides a liquid level float protection device, including a sheet metal left cover and a sheet metal right cover. The sheet metal left cover and the sheet metal right cover form a protective box with openings at the top and bottom. A water inlet is provided on one side of the bottom of the protective box. The protective box is composed of two parts, the sheet metal left cover and the sheet metal right cover, in a split design. During assembly, the sheet metal left cover and the sheet metal right cover are spliced ​​in the left and right directions and fixed with bolts, which is convenient for installation and disassembly. The protective box surrounds the liquid level float in the middle, and the lower half extends into the water, isolating foam and also serving as a windbreak. The protective box has a four-sided enclosure and a hollowed-out design at the top and bottom to maintain the same water level inside and outside, and also facilitates observation of the float position from above. This application has the advantages of low cost, simple structure, convenient disassembly and assembly, and high reliability.

The utility model relates to a cooling tower technical field especially is a kind of windbreak adjusting structure for cooling tower of thermal power plant, including windbreak mechanism and for, windbreak mechanism includes: main component, including the frame of being set in cooling tower air inlet;Execution component, including the vane component of being set in the inside of frame, vane component one end is provided with support rod, and the side of frame is provided with connecting rod, and connecting rod and support rod are hinged;Driving assembly, set in the side of frame and for controlling vane component rotation;The vane component includes the equal interval distribution of several louvers that are rotatably installed in the inside of frame, and the recess is set in the bottom of front end and the top of rear end of louvers, and sealing strip is fixed in recess;Through hand wheel drive worm gear mechanism linkage control louvers synchronous opening and closing, realize air intake accurate regulation, improve cooling efficiency and prevent icing;When closing, sealing strip and fender form double seal, ensure excellent air tightness, adapt to different working condition demand.

The utility model discloses a kind of offshore platform crane hook head windbreak broken silk quick fixing device, including big hook windbreak box body and small hook windbreak box body, windbreak box body includes two oppositely arranged guiding limiting anti-clamping plate and two oppositely arranged resistance baffle support plate, limiting plate and resistance baffle located above limiting plate are equipped on resistance baffle support plate;The end of resistance baffle on big hook windbreak box body is connected with spring tension bar with tension scale;The inner wall of guiding limiting anti-clamping plate forms the boss of the cross section of triangle inwardly.This utility model can efficiently complete the fixing work of big / small hook head, with low risk, high timeliness characteristics.

This invention discloses a sand-fixing method utilizing coppicing and sand burial of Haloxylon ammodendron, relating to the fields of windbreak, sand fixation, and vegetation restoration. Based on the natural growth angle of Haloxylon ammodendron branches, this invention applies coppicing and layering treatments to upright and inclined branches respectively. Inclined branches are laid flat against the ground and buried in sand, causing adventitious roots to sprout from the buried internodes and new suckers to grow upwards. These newly formed suckers are guided towards adjacent plants and buried perpendicular to the prevailing wind direction, creating a connected network structure between plants through their root systems and stolons. This invention classifies and treats branches according to their type. Coppicing upright branches reduces plant height and branch height, promoting tillering; sand burial of inclined branches induces adventitious roots, expands the water absorption area, lowers the center of gravity of branches and leaves, and increases ground cover, which is beneficial for improving the sand-fixing efficiency of vegetation, enhancing the water use efficiency of Haloxylon ammodendron, and promoting healthy shrub development.

This application discloses an antifreeze system and method for wet cooling towers. The cooling tower's support structure has an air inlet. The antifreeze system includes at least one ring of water spray components arranged around the support structure. Each water spray component comprises multiple blocks distributed circumferentially along the cooling tower. Each block includes a horizontally placed water pipe, and the lower surface of the water pipe has a water outlet structure or component. The water flow rate of the water pipes in different blocks can be independently controlled to achieve zoned and controllable formation of target water bodies for windbreak purposes. The antifreeze system for wet cooling towers of this application can better dynamically adapt to real-time operating conditions, ensuring antifreeze reliability while also considering operational economy.

This invention discloses a windbreak system for the takeoff and landing field of electric vertical takeoff and landing (EVTOL) aircraft, comprising several windbreak nets, several lifting devices, and a control device. Several windbreak nets are arranged around the perimeter of the takeoff and landing field. Lifting devices are connected to both sides of each windbreak net, and these devices cooperate to raise and lower the nets. The control device is signal-connected to the lifting devices to control the raising or lowering of one, multiple, or all windbreak nets at a time. This windbreak system allows for the selective raising of windbreak nets on one or adjacent sides based on wind direction during EVTOL takeoff and landing, thereby reducing the impact of crosswinds and gusts on the takeoff, landing, and hovering phases of the EVTOL aircraft. Furthermore, it allows for the raising of the surrounding windbreak nets during parking, mooring, or support operations, forming a circumferential wind barrier and providing dual protection for takeoff and landing and parking.

This invention discloses a pressure loss reduction structure for a positive pressure seed metering device. The space enclosed by the front and rear shells of the positive pressure seed metering device is divided into a front cavity and a rear cavity by a seed metering disc. An airtight cover and a pressure relief wheel are installed in the rear cavity. The airtight cover has a central hole, and a first sealing element is provided between its outer edge and the edge of the seed metering disc. The airtight cover can rotate with the seed metering disc, and its central hole is connected to the rear shell via a bearing. A first sealing ring and a second sealing ring are respectively provided between the inner and outer rings of the bearing and the rear shell and the airtight cover. The mounting bracket connected to the pressure relief wheel has a fan-shaped connecting part, on which an arc-shaped windbreak is fixed. In the direction of movement of the seed suction holes on the seed metering disc, the windbreak is located behind the pressure relief wheel and can block the back side of the seed suction holes within its arc length range. In this invention, a dual measure is adopted to avoid pressure loss, which can significantly reduce wind pressure loss, reduce the required positive pressure airflow pressure, and maintain the stability of the suction force of the seed suction holes.

The application discloses a fly ash-based vegetation type modular wind-preventing and sand-fixing sand barrier component and belongs to the technical field of desertification prevention and ecological restoration engineering; the component is formed by splicing a plurality of lattice units; the unit comprises a hollow fly ash pipe and fly ash plates connected between the hollow fly ash pipe; and the modular assembly is realized through convex grooves and connecting rods; a seed bag containing soil, fertilizer and seeds is prearranged in the hollow fly ash pipe; and air-permeable and water-permeable holes are formed in the lower part of the pipe wall; the application takes fly ash as a main raw material, is low in cost and environment-friendly; the structure is modular, convenient to assemble and adaptable to topography; the application can effectively improve the survival rate of vegetation and has strong sand-fixing durability by combining physical sand fixation and ecological restoration.

This utility model relates to the field of curtain wall adapter technology, and in particular to a wind-pressure resistant and anti-loosening curtain wall adapter, comprising a base, connecting bolts, and an adapter plate. An L-shaped adapter plate is tightly fitted to the front side of the base. Connecting bolts are provided on one side of the base and the adapter plate. Reinforcing rods are fixedly connected to the upper and lower sides of the adapter plate. A positioning component is provided on the rear side of the reinforcing rod. The positioning component includes a positioning post, a moving part, a limiting rod, a locking block, and a return spring. The positioning post is fixedly connected to the rear side of the reinforcing rod, and the limiting rod is tightly fitted inside the positioning post. In this utility model, the positioning component provides a positioning effect during adapter plate installation, thereby improving the ease of positioning. The reinforcing plate and reinforcing rod increase the stability of the adapter plate after installation. The movable and fixable windbreak provides wind pressure resistance to the adapter plate.

This utility model relates to the field of greening net technology, specifically a windbreak and soil-stabilizing garden greening slope greening net, comprising a greening net, one end of which is fixedly connected to a side connecting strip, and the other end of which is provided with a connecting shaft. A winding mechanism is provided on the connecting shaft, the winding mechanism comprising: a hollow connecting strip, the inner wall of which is rotatably connected to the connecting shaft; a hollow disk fixedly connected to the bottom of the connecting shaft; and a drive shaft rotatably connected to the bottom of the hollow disk. This utility model constructs a segmented buffer system with nonlinear stiffness by sequentially arranging two spiral springs with different elastic forces between the connecting shaft and the drive shaft. When external wind suddenly acts on the greening net, the two springs respond sequentially, playing a progressive energy storage and buffering role, effectively reducing the risk of the greening net being torn or snapped in strong winds, and improving its safety and wind resistance reliability.

This utility model relates to a prefabricated fencing in the field of municipal construction. The prefabricated fencing includes a base and two uprights mounted on the base. Each of the two uprights has an installation groove on one side. The fencing is formed by installing the base, two uprights, two crossbars, and multiple ventilation panels with corresponding windbreaks. This facilitates convenient handling and transportation. During installation, only the two uprights, one crossbar, and the base need to be installed first. Then, the U-shaped blocks mounted on both sides of the ventilation panels are placed into the installation grooves, and the other crossbar is installed with the two uprights to form the fencing. The installation process is convenient. Furthermore, if one ventilation panel or its corresponding windbreak is damaged during use, it can be easily replaced by removing the ventilation panel from the U-shaped block and moving it horizontally, eliminating the need to replace multiple windbreaks as a whole, thus reducing costs.

1. The name of the design product: windbreak cover of tower crane. 2. The use of the design product: installed on the jib of the tower crane, and surrounds the counterweight set on the jib, for windbreak. 3. The design points of the design product: in shape. 4. The picture or photo that best shows the design points: perspective view 1.

The utility model discloses a safety electric motor car windbreak quilt of hanging neck rope can be separated, including integrative upper quilt part and lower quilt part, the upper surface of upper quilt part is equipped with the rear -view mirror perforation for passing through electric motor car rear -view mirror, the bottom of upper quilt part is provided with handle cover, and the top of handle cover is sewed with connecting part, and connecting part includes bottom wall and the windbreak wall that is connected on the upside of bottom wall and surrounds rear -view mirror perforation, and bottom wall is sewed on the top of handle cover, and the top of windbreak wall is sewed on the lower surface of upper quilt part. The utility model discloses setting up windbreak wall, blocks the cold wind through the installation mouth and enters handle cover, improves its warm -keeping performance, sets up second zip fastener combination to the installation mouth closed, sets up third zip fastener combination to rear -view mirror perforation and closes, utilizes second zip fastener combination and third zip fastener combination, further blocks the cold wind and enters handle cover to make this safety electric motor car windbreak quilt of hanging neck rope can be separated and has better hand warm -keeping performance.

The utility model discloses a kind of building site environmental protection dustproof covering net assemblies, it is related to building site environmental protection article technical field, including the outer frame assembly and cover net main body with matched arrangement, the outer side edge of cover net main body and its surface are respectively fixed with connecting portion and limiting portion, outer frame assembly includes to the frame body assembly and elastic band with matched arrangement, the surface of elastic band is fixedly connected with guide belt, the inner end of guide belt is fixedly connected with limiting head, frame body assembly includes frame body and its fixedly connected windbreak layer and ground nail. Cover net main body reaches the effect of covering dust to the building material piled outside by covering, connecting portion reaches the effect that cover net main body is conveniently connected and limited in the inside of outer frame assembly, limiting portion reaches the effect that guaranteeing cover net main body is stretched and adjusted stability in the inside of outer frame assembly.

The utility model relates to the technical field of city afforestation, disclose a kind of adjustable afforestation tree windbreak support fixing frame, including mounting block, the right side of mounting block is provided with slot, the inside detachably connected with connecting plate of slot, the top side of connecting plate is provided with locating hole one, connecting plate is fixed with mounting block by fixed component, the left end of mounting block front side is provided with connecting groove, the left side of connecting groove inner wall is rotatably connected with carousel, the left side fixedly connected with knob of carousel, knob penetrates mounting block, the top and bottom both sides of carousel inner wall are provided with limit slot, the limit slot inner wall is slidably connected with clamping plate. In the utility model, by rotating knob, the plug bolt can be inserted or separated from the positioning hole flexibly, the support diameter range can be adjusted, the tree is prevented from being damaged, and the tree growth is adapted.

This utility model belongs to the field of windbreak and sand fixation technology, specifically relating to a grid-type sand barrier for sand control based on a combination of strips. It includes several parallel and spaced-apart row-type sand barriers, each row consisting of several overlapping sand barrier panels. A fixing structure is installed at the overlap of adjacent sand barrier panels to secure them. The bottom end of the fixing structure is inserted into the sand. Several spaced-apart sand-blocking strips are arranged between two adjacent row-type sand barriers, with the extension direction of the sand-blocking strips perpendicular to the extension direction of the row-type sand barriers. Each sand-blocking strip group includes several sand-blocking strips spaced apart and inserted into the sand. The grid-type sand barrier of this utility model is formed by spaced-apart row-type sand barriers and sand-blocking strip groups between them. There is no direct connection between adjacent row-type sand barriers, nor between the sand-blocking strips, allowing for flexible arrangement according to the terrain and greater adaptability to different terrains.

This application belongs to the field of ecological restoration technology, specifically involving a vegetation restoration method for photovoltaic sites in cold and arid regions. The method includes dividing the site into sub-panel areas, inter-panel areas, and slope areas; constructing an arc-shaped catchment surface and drainage ditch in the inter-panel area; providing unglazed earthenware pots with perforations at the bottom, burying them around the drainage ditch with the tops below the ground surface to construct micro-water channels. The unglazed earthenware pots utilize their naturally porous material to slowly release rainwater, continuously supplying water to the plant roots. A composite substrate is laid on the site surface, and low-growing native plants mixed with grass seeds are sown. Rainwater is collected by the photovoltaic panels and the inter-panel catchment surface and channeled into the earthenware pots, slowly seeping into the root zone through the perforations at the bottom of the pots. This method, through the combined action of photovoltaic panel rainwater collection, earthenware pot seepage irrigation, substrate water retention, and native vegetation, can effectively improve the vegetation restoration rate and meet the needs of windbreak and soil stabilization and ecological improvement.

The utility model discloses an anti-freezing protection device for garden planting, and relates to the technical field of garden planting, the anti-freezing protection device comprises two groups of windproof plates, the middle of the inner side of each windproof plate is provided with a thermal insulation sleeve, and the two groups of thermal insulation sleeves and the two groups of windproof plates are semicircular; heat preservation filling layers are arranged in the middles of the two heat preservation sleeves, multiple sets of air holes are formed in the outer walls of the two heat preservation sleeves, two telescopic rods are arranged between the upper outer walls and the lower outer walls of the two heat preservation sleeves and the upper inner walls and the lower inner walls of the two windproof plates, and threaded rods are arranged on the outer walls of the middles of the two heat preservation sleeves. Threaded sleeves are arranged on the inner walls of the middles of the two sets of windproof plates correspondingly, and the two sets of threaded sleeves are in threaded connection with the two sets of threaded rods correspondingly. The anti-freezing protection device for garden planting can provide better windproof and heat preservation effects, and is very simple and convenient to install and use.

The utility model relates to the technical field of protective screen device, disclose a kind of windbreak and sand fixation protective screen device for callerya plantation, including fixed frame, the left and right sides and below in fixed frame are all provided with limiting slot, below the limiting slot is fixedly connected with multiple first spring in, the first spring top is fixedly connected with telescopic plate, left and right sides limiting slot are all provided with protective screen frame, and protective screen frame is set in telescopic plate top, the upper side of the both sides of protective screen frame is all provided with insertion slot, the upper side of the both sides of fixed frame is all penetrated and fixedly connected with fixed cylinder, two the fixed cylinder adjacent side is all provided with telescopic slot. In the utility model, when the levering member of the both sides of fixed frame is pulled out, the insertion post can be pulled out from the insertion slot and retracted into the telescopic slot by the movement of pull rod, and the protective screen frame can be ejected from the limiting slot by the elastic force of the first spring, so that the protective screen frame can be easily disassembled and replaced.

This utility model relates to the technical field of windbreak and sand-fixing devices, and discloses a windbreak and sand-fixing device for soil and water conservation, including a resilient frame, a first outer net, a second outer net, and an inner net, which is slidably installed between the first and second outer nets; and an unwinding roller, which is rotatably installed inside one side of the resilient frame. The unwinding roller includes a first roller shaft fixedly installed on its inner diameter. By rotating the second roller shaft, the utility model allows the winding roller to roll up the inner net wound on the unwinding roller slightly, causing the inner net between the first and second outer nets to slide a small gap towards the winding roller. This creates a certain misalignment between the mesh holes of the inner net and the upper and lower sets of mesh holes, so that the gap between the mesh holes of the first outer net is partially blocked by the mesh holes of the lower inner net, thereby reducing the cross-sectional area of ​​the mesh holes and reducing water evaporation and sand erosion during drought and windy weather.

The utility model discloses an island windproof fence, include: windproof subassembly, windproof subassembly includes baffle and support frame, support frame is two settings, lies respectively baffle both sides, reinforcing component, reinforcing component includes fixed frame, inserts the hole, support rod and auxiliary support rod, the fixed frame is fixed in the support frame outside end inclined pole bottom, inserts the hole and is established in the fixed frame below horizontal surface with support frame outside end inclined pole surface, and support rod is screwed in between the inboard of inserts the hole, and auxiliary support rod is located between support rod and support frame top. To solve the problem that the existing windproof fence is connected with the ground through the support structure of both sides, so that the fence can resist strong wind to a certain extent, but due to the complex climate environment of the island, the wind direction is changeable, resulting in the problem that the both sides support structure cannot completely support the fence under the strong wind.

This invention relates to the field of ecological protection technology, specifically to a seed composite, its preparation method, and its application. The invention provides a seed composite comprising, from the inside out, a core layer, a middle framework layer, and an outer water-retaining layer; the core layer is a stress-resistant seed; the middle framework layer is an organic-inorganic porous sludge material coating the core layer; and the outer water-retaining layer is a water-supplying sludge-based hydrogel coating the middle framework layer. The seed composite provided by this invention can not only effectively enhance the environmental stress resistance of plant seeds and ensure the survival rate of plants under harsh environmental conditions such as rocky desertification, but also compensate for problems such as insufficient water and nutrient supply, inadequate water and fertilizer retention capacity, and poor stability in rocky desertification soils, achieving the goals of windbreak and sand fixation, and soil improvement.

A self-cleaning wind turbine casing and offshore wind turbine are disclosed. The wind turbine casing includes: a casing body and a cleaning assembly; the upper surface of the casing body has a top surface and an inclined outer surface along its length; the cleaning assembly is installed on the top surface; the side and bottom surfaces of the casing body are transitioned by an arc surface; a windbreak shell is installed on the top surface; the lower side of the windbreak shell has an opening facing and connecting to the outer inclined surface; a water supply pipe is installed in the casing body, and the output end of the water supply pipe is connected to the windbreak shell for supplying cleaning liquid to the windbreak shell, allowing the cleaning liquid to flow through the windbreak shell and exit onto the outer inclined surface and the arc surface. This solution allows the cleaning liquid to flow through the outer inclined surface and the arc surface, which can remove surface contaminants from the outer inclined surface and the arc surface, solving the problem of the difficulty in cleaning the casing of existing wind turbines in mid-air.

The utility model relates to agricultural planting technology field especially relates to a citrus orchard windbreak and flow guide pesticide spraying cover capable of reducing loss. The utility model provides a citrus orchard windbreak and flow guide pesticide spraying cover capable of reducing loss, including first protective cover, first rubber connecting ring, second protective cover, second rubber connecting ring and third protective cover, first protective cover lower part fixedly connected with first rubber connecting ring, first rubber connecting ring lower part fixedly connected with second protective cover, second protective cover lower part fixedly connected with second rubber connecting ring, second rubber connecting ring lower part fixedly connected with third protective cover. Through to the both sides sliding first guide rod, make the gap between two arc clamping blocks bigger, again with the pesticide spraying head cover set in inserting to first protective cover, then loosen first guide rod, arc clamping block will spray head and be stuck under the action of first elastic part, to realize the quick installation to protective cover.

The utility model discloses a kind of filling paper pad machine windbreak support, including support shell, consumable outlet is provided on the side of support shell, the accommodating cavity for accommodating consumable is formed inside support shell, the consumable outlet is communicated with the accommodating cavity, baffle structure for shielding the consumable in accommodating cavity is provided on support shell.The filling paper pad machine windbreak support of the utility model is formed with the accommodating cavity for placing the consumable in support shell, so that consumable can be directly placed in the inside of support shell, and baffle structure is provided on support shell, wind can be blocked for consumable, so as to avoid blowing consumable by factory exhaust and cooling fan etc. When using, influence paper pad machine operation. Meanwhile, consumable outlet is provided on support shell, and consumable can be taken out of accommodating cavity from consumable outlet to be sent to paper pad machine for use.

This invention belongs to the technical field of desertification ecological restoration equipment, and particularly relates to a windbreak and sand-resistant soil crust spraying device. Addressing the problems of isolated functional modules, lack of coordination, and susceptibility to material disturbance and insufficient pretreatment in windy and sandy environments, the invention proposes the following solution: a spraying base plate and a spraying mechanism integrated thereon. The spraying mechanism includes a microbial agent spraying component, a water-retaining agent spraying component, and a seeding component arranged sequentially along the direction of travel. A square-shaped windproof cover is provided on the outside of the spraying area, along with a microenvironment air curtain component. Air is drawn in through micro-intake holes on the windproof cover and then forms a downward-facing adjustable isolation air curtain from the bottom air outlet, preventing material dispersion. This invention, through deep integration of sequential spraying, targeted mixing, environmental control, and intelligent linkage, solves the problems of single function, easy material failure, and significant environmental interference in existing technologies, achieving the goal of efficient artificial biological soil crust construction in complex windy and sandy environments.

The utility model provides a kind of green ecological three-dimensional landscape wall, including wall, the front of wall is provided with planting assembly, the planting assembly includes multiple planting frames being arranged in the front of wall, the bottom surface of each planting frame is all opened with multiple groups of air holes, the bottom surface of each planting frame is all fixedly connected with windbreak shell, the front of each windbreak shell is all opened with air groove, the inner wall of each windbreak shell is all fixedly connected with water-absorbing cotton;The front of wall is provided with irrigation assembly for collecting and utilizing moisture inside windbreak shell.By the planting assembly being set, windbreak shell is used, the air hole around can be shielded, so as to slow down the air flow rate around air hole and soil surface, water evaporation rate can be reduced, by the water-absorbing cotton being set, water vapor inside windbreak shell can be absorbed, water vapor can be condensed into water droplet, further reduce water vapor evaporation, so as to reduce water resource waste.

This utility model discloses a hidden drainage structure with internal circulation in doors and windows, relating to the field of building door and window technology. The utility model includes a window frame with a glass window on its inner wall and a drainage mechanism on its inner wall. The utility model uses a filter screen to filter rainwater, preventing impurities in the rainwater from clogging the drain outlet. The rainwater then flows outward through the drain pipe. When it comes into contact with a one-way windbreak, the impact force of the rainwater pushes the one-way windbreak open, allowing the water to drain outward. In windy weather, the one-way windbreak seals the drain pipe to prevent strong winds from entering and causing rainwater backflow. This achieves the effect of filtering rainwater while preventing backflow, keeping the indoor environment dry and clean, and avoiding problems such as slippery floors and damp furniture caused by rainwater entering the room, providing residents with a more comfortable and safe living environment.