282 results about "Ventilator outlet" patented technology

A vent register includes a set of vanes and a mechanical assembly. Each vane is pivotably affixed to a respective stationary point to be rotatable about the stationary point. The mechanical assembly interconnects the vanes so that all of the vanes rotate together in response to one of the vanes being actuated to rotate. At least one of the vanes has an orientation different than at least another one of the vanes such that the at least one of the vanes and the at least another one of the vanes point in different directions as the vanes are rotated.

This utility model relates to the field of stove technology, specifically a stove core structure, including an inner tube and an outer tube. The inner tube is open at the bottom and closed at the top, while the outer tube is closed at the bottom and open at the top. The space between the inner and outer tubes forms a combustion chamber. Several air inlet pipes are evenly arranged around the circumference of the outer tube at its lower part. Ventilation openings are also provided at the lower and upper parts of the outer tube. Several evenly arranged ventilation openings are provided on the wall of the inner tube. This utility model replaces ventilation openings with evenly distributed air inlet pipes at the lower part of the outer tube. On the one hand, this prevents the combustion flame at the bottom of the combustion chamber from escaping through the ventilation openings at the lower part of the outer tube. On the other hand, the air inlet pipes guide air into the bottom of the combustion chamber more orderly, providing a sufficient and stable oxygen supply for fuel combustion at the bottom. This solves the technical problems of existing stove core structures easily causing flame escape during combustion and fuel waste due to incomplete combustion within the combustion chamber.

The application discloses a centralized ventilation system for the tail of a cruise ship, comprising a centralized ventilation platform, a ventilation unit and a plurality of exhaust branch pipes; the centralized ventilation platform is arranged on the top of the elevator machine room at the tail of the cruise ship and protrudes upward from the deck of the area where the elevator machine room is located; a plurality of ventilation openings are arranged on the centralized ventilation platform; the ventilation unit is correspondingly arranged on each ventilation opening; the first end of each exhaust branch pipe is connected with the exhaust opening of each room requiring exhaust at the tail of the cruise ship, and the second end of each exhaust branch pipe is connected with the ventilation opening of the centralized ventilation platform; the exhaust branch pipe is used for guiding the gas to be discharged from each room requiring exhaust to the centralized ventilation platform for centralized discharge. The centralized ventilation platform arranged in the application can greatly reduce the number of structural openings of the deck and superstructure, reduces the weakening of the local structural strength of the ship body, and is favorable for guaranteeing the structural safety of the tail of the cruise ship.

This invention proposes a water-absorbing pet bathing and drying all-in-one machine, comprising: a housing, a partition, a centrifugal fan, a blower baffle, and a shower system; the housing is provided with an inlet / outlet, a door, a vent, and a drain outlet; the partition located in the lower part of the housing divides the housing into a drying chamber and a fan chamber; the partition is provided with an air intake connecting the drying chamber and the fan chamber, and a filter screen is provided at the air intake; the air inlet of the centrifugal fan located in the fan chamber located on the lower side of the partition is connected to the air intake, and a heater is provided at the air outlet of the centrifugal fan; the casing of the centrifugal fan is connected to the drain outlet through a pipe; a hot air channel is formed between the blower baffle located in the housing and the side wall of the housing, and the lower end of the hot air channel is connected to the air outlet of the centrifugal fan; the blower baffle is provided with multiple blower holes connecting to the drying chamber; the shower system located in the housing includes a water inlet, a booster pump, a spray pipe, and multiple spray heads connected thereto.

The utility model belongs to building curtain wall technical field especially can adjust indoor temperature's building curtain wall, including stand, be provided with crossbeam on stand, crossbeam outside is provided with inner layer glass, one side of inner layer glass is provided with outer layer glass, outer layer glass outside is provided with decoration buckle, forms hollow layer between outer layer glass, inner layer glass, top ventilation opening includes mounting frame, vane, sealing frame, connecting shaft and disc spring. The utility model discloses through inner layer glass, outer layer glass, hollow layer, top ventilation opening, vane, bottom ventilation opening, realizes the temperature control of building indoor through outside natural ventilation and seasonal mode switching, avoids the structure of intelligentization, reaches indoor temperature control effect on the basis of low cost, easy maintenance, turns over the vane in top ventilation opening, bottom ventilation opening, and the flowing air from bottom ventilation opening enters hollow layer and flows, and the heat in hollow layer is taken away from top ventilation opening, guarantees the cool feeling of indoor.

A motor vehicle (10) is described, comprising several electrically adjustable side windows (12v, 12h) and / or an electrically adjustable sunroof (14); a vehicle control unit (16) configured to adjust the side windows (12h, 12v) and / or the sunroof (14) to their respective positions; an air conditioning system (18) for regulating the interior temperature, wherein the air conditioning system (18) has at least one electromechanically adjustable air outlet (20), and wherein the vehicle control unit (16) is configured to adjust the air conditioning system (18) and / or the at least one air outlet (20).It is provided that the motor vehicle (10) has at least one camera device (22) facing the vehicle interior (FI) which is designed to capture information about an airflow and / or an air stratification in the vehicle interior (FI), wherein the vehicle control unit (16) is designed to open at least one side window (12v, 12h) and / or the sunroof (14) at least temporarily, depending on the detected airflow and / or air stratification, when the vent (20) is at least partially open.

The present application relates to a kind of dish-washing machine and its working method, dish-washing machine includes box, inside with washing chamber, the side wall of the box is equipped with with washing chamber being communicated with the air passage;Air inlet assembly, including air inlet pipe, located washing chamber outside and is equipped in the side wall of box, the air inlet pipe is equipped with with its inside being communicated with air inlet and air outlet, the air inlet is communicated with outside;Air passage is equipped with the flexible baffle that it is shielded, the flexible baffle and the air outlet of air inlet pipe are connected by air passage, the area of the air outlet of air passage is less than the area of air passage, the part of the flexible baffle corresponding air outlet of air passage has the air vent for the airflow in air passage to flow into washing chamber, the air outlet of air passage can be relative to box activity, so that the path of airflow flowing is flexible variable, increase the coverage area of airflow, and can be rapidly dispersed to all around, improve the uniformity of temperature field and flow field in box.

This utility model discloses a bidirectional mounting and fixing bearing housing, belonging to the technical field of bearing housings. A bidirectional mounting and fixing bearing housing includes a lower bearing housing and an upper bearing housing. The lower bearing housing has a snap-fit ​​sleeve on its top, and multiple snap-fit ​​sleeves have rotating handles threaded onto their outer walls. The upper bearing housing has a snap-fit ​​bracket at its bottom that matches the snap-fit ​​sleeves, facilitating bearing maintenance or replacement. The overall installation is simpler and more convenient. Furthermore, due to the multiple limiting plates, the bearing can be positioned and supported more easily during installation, reducing the need for tools or manual assistance and improving ease of installation. Additionally, airflow generated by a cooling fan enters multiple cavities, using wind power to dissipate heat from the bearing. Excess heat is discharged through multiple vents, improving the bearing housing's heat dissipation performance during bearing installation and ensuring continuous and stable use.

The utility model discloses a kind of air conditioner air port structures of convenient dismounting, it is related to the technical field of air conditioning system accessories, including hoisting clasp seat, elastic hook and air conditioner air port, hoisting clasp seat is provided with several, and hoisting keel that several roots of closed frame are spliced are set on reserved air vent, at least two hoisting keels are clamped with hoisting clasp seat, elastic hook is hung on hoisting clasp seat, the other end of elastic hook is hung on the frame of air conditioner air port, elastic hook can provide pull force along the reserved air vent towards ceiling, so that air conditioner air port is clamped in reserved air vent and port surface is attached to ceiling board.The utility model does not need professional personnel to use electric tool operation for dismounting and mounting of reserved air vent, and also does not need professional personnel to operate installation, cleaning, and air conditioner air port can be disassembled, installed, cleaned by owner oneself, it is quick, labor-saving, worry-free, money-saving to operate, installation operation is extremely simple, and installation quality and effect are good.

The utility model discloses an upper air guide channel, including passageway body, upper vent and lower vent, the upper vent is located the upper end of passageway body, the lower vent is located the lower end of passageway body, the inner wall of passageway body is equipped with at least two baffle, the baffle distribution the inner wall's different height of passageway body to the adjacent layer baffle between along horizontal direction staggered arrangement. The utility model discloses a kind of upper air guide assembly. The utility model increases the air guide path of car front end by upper air guide channel, it is favorable to improve the ventilation rate of front end heat dissipation module, engine intake temperature and resistance;Again, since multiple baffles are arranged in passageway body, water vapor can be reduced into engine, reduce crown water risk.

This utility model discloses a vent opening switch structure for a roof insulation layer, including a vent body inserted into an exhaust duct. The vent body and the exhaust duct are shaped to match. An air inlet is provided at the outer end of the vent body. Baffles are horizontally rotatably connected to both sides of the inner cavity of the vent body via pivots. The baffles are controlled to rotate by a switch assembly, allowing them to have a first state and a second state. In the first state, the baffles rotate to a horizontal position, and the exhaust duct connects to the outside through the inner cavity of the vent body. In the second state, the baffles rotate to a vertical position, blocking the inner cavity of the vent body and disconnecting the exhaust duct from the outside. This utility model features a switchable baffle design for the vent body. Air convection is formed between the vent and the exhaust pipe of the exhaust duct to improve the efficiency of water vapor removal. The vent body can be switched on and off according to changes in humidity within the insulation layer and the external air environment, ensuring the roof insulation layer is in good working condition.

The utility model relates to cooling device technical field especially discloses a cooling device of automatic blanking, including frame and conveyer belt, the top of conveyer belt is provided with the protective cover for preventing material deviation, the outside of protective cover is opened with a plurality of air vents, every fixed mechanism includes locating frame, locating block, screw hole and screw rod, locating frame fixed mounting is at the outside of frame, the below area of fan is slid into to protective cover, and the inside of locating hole is entered to the locating block of promoting locating block, and then through screwing screw rod, the friction between locating block and locating frame increases, thereby fixed locating block position, and then the protective cover is fixed on the frame, and the material is placed on the conveyer belt and is driven to move, in the conveying process, the protective cover can prevent material deviation and drop in the conveying process, avoid material pollution, thereby reduce the substandard rate caused by material pollution, avoid the shutdown caused by material drop simultaneously, guarantee normal production process.

The utility model belongs to air energy heat exchange equipment technical field, specifically disclose a kind of air pipe joint, air pipe joint is used to connect air pipe assembly and the host of heat pump water heater, air pipe assembly includes inner tube and outer tube, and air pipe joint includes joint main body and end, and the wind cavity is formed in joint main body inside, and still be provided with the first vent, second vent and the exit of communicating wind cavity on joint main body, and the inner diameter of exit is greater than the inner diameter of first vent. The heat pump water heater of application above-mentioned air pipe joint is easy to install, and the requirement of low installation environment.

The embodiment of the application relates to the technical field of unmanned aerial vehicle countermeasure, and discloses a power amplifier and unmanned aerial vehicle countermeasure equipment, the power amplifier comprises at least one power amplifier unit, the power amplifier unit comprises a shell, a first air vent is formed in one side of the shell along a first direction, a handle is arranged on the other side of the shell along the first direction, a second air vent is formed in at least one side wall of the shell along a second direction, the first direction is perpendicular to the second direction, a plurality of radiating fins are arranged on the shell and extend from the first air vent to the second air vent, and a radiating air duct is formed between adjacent two radiating fins, the radiating air duct is used for air flow to pass through, so that the power amplifier unit is radiated. Through the above mode, the embodiment of the application realizes the effects that the power amplifier unit is easy to replace, the radiating is reliable, and the disassembly and assembly are safe.

1 ABSTRACT: The present invention relates to a construction block system featuring a water tank module and controlled airflow. The system is designed to allow natural ventilation through an air intake system, with air entering via a channel that is separate from the blocks themselves. A vent located before the fan is used to control airflow based on the season. During summer, the vent is open to allow airflow through the water channels, while in winter it closes to prevent heat loss. ABSTRACT: The present invention relates to a construction block system featuring a water tank module and controlled airflow. The system is designed to allow natural ventilation through an air intake system, with air entering via a channel that is separate from the blocks themselves. A vent located before the fan is used to control airflow based on the season. During summer, the vent is open to allow airflow through the water channels, while in winter it closes to prevent heat loss. 1 20 25 23 06 71 09 S ep 2 02 5 2 0 2 5 2 3 0 6 7 1 0 9 2 0 2 5 S e p

This application provides an assembly structure for an automotive seat ventilation system and an automotive seat. The assembly structure is mounted on seat foam and includes a ventilation bag fixed to the seat foam. The ventilation bag has a ventilation opening, and a flexible air-guiding and insulating body is fixed to the ventilation bag. The flexible air-guiding and insulating body has a first interface that communicates with the ventilation opening. A connecting mechanism is provided at the first interface on the flexible air-guiding and insulating body. A fan body is provided on the side of the flexible air-guiding and insulating body away from the ventilation bag. A connecting element is provided at the air inlet of the fan body. The connecting element is used to engage with the connecting mechanism to fix the fan body to the flexible air-guiding and insulating body. By setting a connecting mechanism at the first interface of the flexible air-guiding and insulating body and a connecting element at the air inlet of the fan body, the fan body is fixed to the ventilation bag while the air inlet communicates with the ventilation opening. No additional connectors are needed for fixation, and the snap-fit ​​fixation method is more convenient and faster.

The invention relates to an air diffuser device (1) designed to be fitted to a dashboard (2) of a motor vehicle, the device (1) comprising an air vent (3) designed to diffuse an airflow propelled by a ventilation system (4) connected to the device (1), the air vent (3) comprising a first (6) and a second (7) distinct zones, the first zone (6) being delimited by a perimeter (8) designed to be at least partially covered by a diffuser face (9), the second zone (7) being delimited by at least one interface edge (12) designed to form, with a dashboard face (13), a visual interface (14) without being covered by the diffuser face (9) and to form an opening (15) extending between the diffuser face (9) and the visual interface (14), when the device (1) is attached to the dashboard (2). (Figure 3)

The utility model discloses an underground engineering construction ventilation opening protection device, including the ventilation pipe, be provided with the support in the ventilation pipe, one side of support is provided with the fan, is provided with the fan blade on the output, is provided with the top cover on the top of ventilation pipe, and the top of top cover is closed, and a plurality of ventilation holes are seted up around, and the top cover is rotatably connected with the ring, is provided with a plurality of circumferentially even arrangement's vane on the top of ring, and every vane is vertically arranged, and all deviate from the radius of ring and be arranged in the form of inclination, through the connection between ring, vane and round plate, and the effect of the inner rotation of ring in top cover, make the airflow produced when fan drive vane rotate can be discharged through the clearance between every vane, through the inclination design of vane, make a plurality of vane together with round plate and ring produce the rotation effect of axial, thereby improve the ventilation effect, compared with prior art, have the protection effect, guarantee exhaust capacity simultaneously, improve the ventilation effect.

This utility model discloses a dual-channel automotive air conditioning vent, relating to the technical field of vehicle air conditioning vents. The dual-channel automotive air conditioning vent includes a snap-fit ​​plate and two symmetrically arranged ventilation openings on the snap-fit ​​plate. Longitudinal fixing plates are provided on the rear wall of the snap-fit ​​plate, located on both sides of the ventilation openings. Multiple transverse blades are rotatably arranged between the two longitudinal fixing plates. These transverse blades are hinged to a first synchronous rod. A limiting component is fixedly provided on the rear wall of the snap-fit ​​plate, cooperating with one of the transverse blades. The limiting component limits the multiple transverse blades. Even when the pin and the fixing plate are in a clearance fit, the multiple transverse blades are still limited, preventing the closure of the air conditioning vents due to the closure of the transverse blades, thus avoiding the problem of affecting the normal ventilation of the vehicle's air conditioning system.

This utility model belongs to the field of cooling tower manufacturing technology, specifically relating to a fillerless spray cooling tower, including a tower body. Inside the tower body, from top to bottom, are arranged a water collector, a water spraying device, and a secondary atomizing device. The water spraying device includes a water supply pipe with several vortex atomizing nozzles. One end of the water supply pipe is connected to a water inlet, and the other end is closed and fixedly connected to the other end of the tower body. The bottom of the tower body is recessed and connected to a water outlet. An air inlet louver is provided on the side wall of the tower body, located below the secondary atomizing device. A ventilation opening is provided on the top wall of the tower body, and an exhaust fan is installed inside the ventilation opening. This fillerless spray cooling tower of this utility model has good atomization effect and high cooling efficiency.

Air outlet (2) for air conditioning a vehicle, comprising a housing (5) which at one end forms a tubular section (6) for connecting the housing (5) to an air supply pipe (7) and at the other end forms two separate and spaced-apart air outlet channels (8, 9) in which a plurality of vertically and horizontally arranged airflow guide vanes (16, 17) are mounted and whose position relative to the airflow (11) is adjustable by pivoting a first handle (20), wherein a pivotally mounted closing flap (21) for restricting and / or preventing the airflow (11) supplied to the air outlet (2) is arranged within the tubular section (6) or the air supply pipe (7), characterized in that a second handle (22) is associated with the closing flap (21), which handle (22) is located within the space between the two air outlet channels (8, 9) are arranged,and that the vertically arranged and the horizontally arranged airflow guide vanes (16, 17) of both air discharge channels (8, 9) are each coupled to one another with regard to their pivotability.

This application discloses a robot heat dissipation structure and a robot for improving the heat dissipation efficiency of robot joints. The robot heat dissipation structure of this application includes: a shell, a first power module, a second power module, and an air supply assembly; the shell includes a first receiving part and a second receiving part, which are integrally formed or detachably connected, and a communication port is provided between the first receiving part and the second receiving part; the first power module is at least partially received in the first receiving part, and a gap is provided between the side wall of the first receiving part and the first power module; the first receiving part is provided with a first air outlet and an air inlet; the first power module is provided with an air supply assembly near the air inlet; the second receiving part includes a third air outlet, a mounting interface, and a communication port, a dustproof plate is installed on the third air outlet, and a ventilation opening is provided on the dustproof plate; the second receiving part is connected to the second power module through the mounting interface, which has an opening.

The application relates to the kitchen electrical technology field and provides a dishwasher. The dishwasher comprises a shell, the shell is provided with a mounting cavity; an inner container, the inner container is located in the mounting cavity, and the inner container is provided with a cleaning cavity; a door body, the door body is movably connected with the shell so as to open or close the cleaning cavity; a fan assembly, the fan assembly is located in the mounting cavity and communicates with the inner container; a breather, the breather is located in the mounting cavity and communicates with the inner container; an air duct structure, the air duct structure is arranged in the mounting cavity, the air duct structure is connected with the fan assembly, the air duct structure is provided with an air duct cavity, the air duct structure is provided with a plurality of ventilation openings, and the ventilation openings communicate with the air duct cavity; the fan assembly is configured to blow hot air to the cleaning cavity and blow the hot air to the outside of the inner container through the air duct cavity and the ventilation openings. The dishwasher provided by the application is not prone to condensation on the outside of the dishwasher, and the drying time is relatively short.

The utility model provides a kind of ventilation and heat dissipation shed for cow breeding, including shed board, the shed board side is equipped with ventilation tube one, ventilation tube one inside is equipped with electric fan one, the shed board top is equipped with the ventilation mechanism of ventilation and heat dissipation, the middle part of shed board inboard is equipped with the air supply mechanism of air supply, the middle part of shed board inboard is equipped with the heat dissipation mechanism of auxiliary heat dissipation;The mirror image of ventilation tube one is equipped in shed board both sides, ventilation tube one is distributed at shed board side equidistantly, shed board top surface is opened with ventilation opening, ventilation opening is distributed in mirror image in shed board top surface, ventilation opening is distributed equidistantly in shed board top, ventilation opening is correspondingly set with ventilation mechanism, the inboard of shed board is equipped with longitudinal support frame.The utility model sends the air outside shed into middle part in shed by air supply mechanism, cooperate multiple ventilation tube one and ventilation mechanism can be removed to the air entering shed from multiple positions to outside shed, and then can realize the effect of uniform ventilation, it is convenient to fully replace the air in shed and to shed in cooling.

This invention relates to the field of smart power distribution network equipment protection technology, specifically an anti-condensation metering box, comprising a box body and its internal main compartment, and left and right compartments on either side. The main compartment has grooves on its side frames, with heating films inside the grooves and heat insulation panels on the outside. A dehumidifier and an external temperature sensor are installed between the main compartment and the two side compartments. An internal temperature sensor is installed inside the main compartment. The box body has upper and lower ventilation openings, connecting to air ducts at the top and bottom of the main compartment. Exhaust fans are installed at the air duct openings. The left compartment has a partition plate with a battery underneath and a network connection module, central control module, and controller above. The right compartment has upper and lower partitions, with an alarm between the partitions and the compartment wall. A moving drive mechanism is installed between the partitions, and this mechanism is equipped with a detection and sensing component for detecting the main compartment. This invention achieves precise condensation control through physical isolation and smart grid linkage, improving equipment safety and operational efficiency.

The utility model relates to air conditioning ventilation system technical field, and disclose a kind of air volume regulating device of air conditioning ventilation system, the device is constituted by first pipe body, second pipe body, first pipe body inside is equipped with air induction ventilation mechanism, second pipe body surface is equipped with air volume regulating mechanism, the latter contains air volume regulating component and end production gas monitoring adjusting component, air volume regulating component is rotated by control motor and drives adjusting blade, changes the shielding amount to ventilation opening to regulate air volume;End production gas monitoring adjusting component calculates required air volume according to work requirement, control electric control telescopic column pushes out corresponding number of flow regulating plate, and the self-adapting regulation of air volume is realized in combination with end flow sensor and pressure sensor, compared with prior art, the device can realize accurate, delicate air volume regulation, can also real-time feedback production gas situation, provide data support for reasonable regulation air volume, effectively satisfy different work requirements, improve production environment quality and reduce energy consumption.

The utility model discloses a law enforcement equipment relates to electronic product technical field, wherein, law enforcement equipment includes organism, processing module, two heat dissipation fans and heat conduction spare. The organism is equipped with installation cavity and with at least one air inlet and a plurality of interval arrangement's air outlet of air communication of installation cavity, the processing module is located in the installation cavity, two heat dissipation fans interval are located in the installation cavity, and are adjacent with processing module setting respectively, and every heat dissipation fan is equipped with at least two air vents, the heat conduction spare includes with processing module connection's heat conduction part and extends to every air outlet's heat dissipation part, wherein, every air vent with at least two air outlet corresponds, and at least two air vents interval arrangement. The utility model provides technical scheme aims at improving the heat dissipation efficiency of law enforcement equipment.

This invention discloses a ventilation device with multi-directional air vents, relating to the field of ventilation equipment technology. It solves the problems that ventilation devices typically cannot ventilate any one side, and that the angle of the air vents is difficult to adjust, preventing ventilation to both sides. The ventilation device with multi-directional air vents includes a housing assembly. Each of the four outer surfaces of the housing assembly is provided with an air vent assembly, and four air vent adjustment components are provided on the outer sides of each air vent assembly. This invention utilizes the cooperation of vertical and horizontal wind-blocking blades, allowing the device to adjust different airflow directions by controlling the rotation of these blades. Furthermore, the cooperation of a wind-blocking top plate and a C-shaped wind-blocking plate allows for the control of the rotation of the C-shaped wind-blocking plate within the housing cavity, enabling the device to adjust the orientation of different air outlets during use.

A composite sound-absorbing silencer includes: a low-frequency sound-absorbing module and a mid-to-high-frequency sound-absorbing module installed inside the ventilation opening of a substation; the low-frequency sound-absorbing module adopts an internal tube superstructure design to absorb noise in the first frequency band radiated from the transformer body; the mid-to-high-frequency sound-absorbing module absorbs noise in the second frequency band radiated from the transformer body through frictional loss; the frequency of the first frequency band noise is lower than the frequency of the second frequency band noise. This invention can adjust the usable area and arrangement of the internal modular low-frequency sound-absorbing modules according to the actual cross-sectional area of ​​the ventilation opening and the environmental ventilation requirements, thereby controlling the radiated noise from the transformer in the indoor substation; the product has the lowest pressure loss along the entire airflow path, improving the cooling safety and reliability of the equipment operation; and by installing a wire mesh at the silencer's air inlet, it strengthens the protection against external objects and extends the service life of the equipment.

The utility model relates to a workshop daylighting and ventilator, including the ventilation opening of roof of workshop is opened, the top of ventilation opening is connected with shielding subassembly, the shielding subassembly includes the annular side stop of length greater than the length of ventilation opening, width greater than the width of ventilation opening, the inside of annular side stop is provided with the upper layer rain baffle, the middle layer rain baffle of light -permeable, water collecting tank of number all is several from top to bottom in proper order, the upper layer rain baffle with middle layer rain baffle between, middle layer rain baffle with water collecting tank between all are set in position, and the overall horizontal projection plane of upper layer rain baffle, middle layer rain baffle, water collecting tank completely covers ventilation opening, and the drain outlet of water collecting tank leads to the outer roof of roof outside ventilation opening. Realize the shielding and drainage function of ventilation daylighting, rainwater.