691results about "Ventilation arrangement" patented technology

The invention relates to the technical field of assembly type machine rooms, in particular to an assembly type machine room based on a ventilation and heat dissipation processing mechanism. The computer room comprises a computer room body, ventilation windows are formed in the two sides of the computer room body, an exhaust fan is arranged at the top of the computer room body, and a rainproof assembly is arranged on one side of each ventilation window. As the sponge mat has an adsorption effect on liquid, rainwater can be prevented from entering the machine room body to cause damp damage to equipment, the service life of the equipment is prolonged, as the through holes are formed in the surface of the sponge mat, the ventilation window does not need to be closed, and external air enters the machine room body through the ventilation window after passing through the through holes; heat in the machine room is taken away in the air circulation process, and the heat dissipation effect of the machine room is improved.

The invention belongs to the technical field of curtain wall structures, and discloses a composite curtain wall structure suitable for a zero-carbon building, which comprises an inner side curtain wall and an outer side curtain wall. The inner side curtain wall is arranged on the building body and provided with a ventilation opening, an opening fan is arranged at the ventilation opening and can open or close the ventilation opening, the outer side curtain wall is connected to the inner side curtain wall, a ventilation cavity is formed between the outer side curtain wall and the inner side curtain wall, when the opening fan is opened, the ventilation cavity is communicated with the indoor space through the ventilation opening, and the outer side curtain wall is provided with an air inlet and an air outlet. The air inlet and the air outlet are both configured to be selectively opened or closed, and the ventilation cavity can communicate with the outside through the air inlet and the air outlet. By means of the arrangement, the composite curtain wall structure suitable for the zero-carbon building can flexibly adjust the ventilation mode, and energy consumption and carbon emission of the building can be reduced.

The utility model particularly relates to an automatic air interchanger for an indoor suite door of a passive building. The automatic air interchanger solves the problem that people having a rest are lack of oxygen or dizzy and lack of strength due to the fact that the concentration of indoor CO2 and PM2.5 cannot be detected in time during night rest of an existing passive building. A lock is arranged on the suite door, an outer ventilation opening is formed in an outer side plate at the top of the door pocket line, an inner ventilation opening located on the inner side of the suite door is formed in a top plate of the door pocket line, an air duct communicated with the outer ventilation opening and the inner ventilation opening is arranged between the outer ventilation opening and the inner ventilation opening, and a power transmission mechanism and a rotary ventilation mechanism are arranged in the door pocket line. Automatic ventilation of the public area and the indoor room is achieved, the CO2 concentration and the PM2.5 concentration in the room are equivalent to those in the public area, the CO2 and PM2.5 concentration detecting instrument installed in the public area can detect the concentration of harmful gas in the closed room in time, the fresh air system is started in time to convey fresh air into the room, the air cleanliness in each independent room is improved, and the indoor environment is protected. And the comfort level of the living environment is further improved.

The invention relates to the technical field of civil air defense building ventilation equipment, in particular to efficient-purification and self-cleaning civil air defense building ventilation opening protective door equipment which comprises a door frame, a door body, a driving unit, a sensing system, a purification device, a self-cleaning execution unit and a control unit. The sensing system comprehensively collects environment and equipment data, and the control unit adopts a weighted fusion algorithm to calculate a comprehensive pollution index and determine a pollution level; the protection and ventilation efficiency coefficients under different door body opening and closing angles are calculated based on fluid analogue simulation; dynamically solving the optimal opening and closing angle of the door body and the optimal operation parameters of the purification device through a multi-objective optimization algorithm; and the self-cleaning effect is intelligently triggered and verified according to the filter screen state and the pollution level. Self-adaptive intelligent regulation and control of the protective door in a complex pollution environment are achieved, the safety protection and ventilation efficiency is effectively balanced, and the purification capacity and the automatic maintenance level are improved.

The invention discloses a heat-preservation and heat-insulation composite window and a ventilation method. The heat-preservation and heat-insulation composite window comprises a window frame; the window frame is provided with a window frame top cavity and a window frame bottom cavity. A glass assembly; the glass assembly comprises electrochromic glass, first glass and second glass which are sequentially assembled in the notch of the window frame at intervals in the first direction; a first cavity is formed between the electrochromic glass and the first glass, and a second cavity is formed between the first glass and the second glass; a top opening and a bottom opening are formed between the electrochromic glass and the first glass; the window frame top cavity is provided with a first opening, and the window frame bottom cavity is provided with a second opening. The first opening, the top opening, the second opening and the bottom opening are communicated in sequence; a fan; the fan is arranged in the bottom cavity of the window frame. According to the scheme, the draught fan is arranged, heat absorbed in the first cavity is discharged out of a room so as to take away heat of the electrochromic glass, meanwhile, the second cavity is arranged to be a sealed cavity, the effects of heat preservation and heat conduction restraining are achieved, and the heat insulation effect is enhanced.

The invention relates to the technical field of building fire protection, in particular to an intelligent smoke exhaust device based on shape memory alloy and a smoke exhaust method.The intelligent smoke exhaust device comprises a window frame installed on a wall and a grating plate embedded into the window frame, and the grating plate is manufactured by laser etching of a shape memory alloy matrix with a preset crack pattern; and a heat reflection coating is arranged on the surface of the grating plate. When no fire occurs, the grating plate is in a sealed state, and no gap exists; when a fire disaster occurs, the indoor temperature rises rapidly, when the temperature rises to 90 DEG C and reaches the deformation temperature of the memory alloy, deformation begins, cracks are opened after the grating plate deforms, the preset cracks are distributed in a radial mode after being opened, a smoke exhaust channel is generated, and indoor smoke dust is exhausted. The method has the technical effects of high response speed and no need of manual reset.

The modular window shutter system is for use with a window frame. The modular window shutter system forms a shutter that mounts adjacent to the window frame. The modular window shutter system includes a pan structure, a barrier structure, and a plurality of fastening structures. The pan structure secures the modular window shutter system to the support surface, which is adjacent to the window frame. The barrier structure attaches to the pan structure. An initial fastening structure selected from the plurality of fastening structures secures the pan structure to the support surface adjacent to the window frame.

The utility model discloses a micro-ventilation structure for a door and window and the door and window. The micro-ventilation structure is arranged on at least two long-strip-shaped holes which are formed in a window sash and are communicated with the inside and the outside. The micro ventilation structure comprises an indoor ventilation hood, an outdoor ventilation hood and a filter element; the indoor vent hood is arranged on the side, close to the indoor space, of the long-strip-shaped hole; the outdoor vent hood is arranged on the side, close to the outdoor space, of the long-strip-shaped hole. And a plurality of filter elements are respectively arranged in the strip-shaped holes. The window sash does not need to be opened, indoor and outdoor communication is achieved through the long-strip-shaped hole penetrating through the window sash, indoor and outdoor micro ventilation is achieved through the indoor ventilation hood and the outdoor ventilation hood, and outdoor air entering a room is filtered through the filter element.

The detachable ventilation window convenient to maintain comprises a shutter assembly and a dustproof cotton assembly, the shutter assembly comprises a peripheral frame and a plurality of blades fixed in the peripheral frame in an up-down spaced mode, a steel wire mesh is fixed to the rear side of the peripheral frame, and two oppositely-distributed U-shaped pieces are fixed to the steel wire mesh; the upper side and the lower side of each U-shaped piece are provided with a guide plate and a limiting piece which are fixed to the steel wire net respectively, the blades are in a Z shape in the vertical direction, the upper sides of the blades are provided with blocking strips formed through bending, and the dustproof cotton assembly is inserted into the two U-shaped pieces from top to bottom and comprises a front pressing plate and a rear pressing plate which are fixed to each other. Ventilation holes are evenly distributed in the front pressing plate and the rear pressing plate, and dustproof cotton is arranged between the front pressing plate and the rear pressing plate. The ventilation device has the advantages of being simple in structure, low in cost, convenient to maintain, good in ventilation effect and high in practicability.

The invention discloses an adjustable seasonal self-adaptive energy-saving window based on a flexible phase change material, the adjustable seasonal self-adaptive energy-saving window is provided with a double-layer glass window body, a roller shutter system, an electrostatic dust collection module and an air filtering system, the roller shutter system comprises a roller shutter rotating shaft and a roller shutter, the roller shutter comprises a flexible PCM base material, and a reflecting layer and a heat absorption layer which are respectively formed on two sides of the flexible PCM base material; switching between winter and summer modes is realized by driving the roller shutter rotating shaft; in winter, the heat absorption layer faces outdoors, absorbs solar energy, stores the solar energy in the PCM, heats air in the cavity and then guides the air into a room. In summer, the reflecting layer faces outdoors and reflects solar radiation, residual heat is absorbed through PCM, heat is discharged in combination with air circulation, and the indoor temperature is lowered; the electrostatic dust collection module and the air filtering system synchronously purify air in the heat management process, and the indoor air quality is ensured. The problems of winter and summer performance contradiction and high energy consumption of a traditional window can be solved, and the effects of heat insulation in summer and fresh air temperature increase in winter are achieved.

The utility model relates to the technical field of door and window mechanisms, in particular to an environment-friendly aluminum alloy door and window mechanism which comprises a door and window, and a blocking device is fixedly connected to the upper end of one side of the door and window. The blocking device comprises a mounting shell, two ends of the mounting shell are provided with filter screens with a lampblack filtering function, one end of the mounting shell is fixedly connected with a driving motor, one end of a main shaft of the driving motor penetrates through one side of the mounting shell and is fixedly connected with a connecting rod, and the outer side of the connecting rod is fixedly connected with an extrusion block; the upper end of the guide block is fixedly connected with an extrusion spring, one side of the guide block is fixedly connected with a guide rod, one end of the guide rod is fixedly connected with a piston, the inner side of the mounting shell is fixedly connected with a mounting plate, the upper end of the mounting plate is provided with an empty bin, and the inner side of the mounting plate is provided with a pipeline. Therefore, the service life of the door and window is prolonged.

A fresh air valve (10) comprising: an elongate housing (11) having a transverse air flow channel (12), a movable cover (13) to open or close the air flow channel (12), and a cover handling mechanism (14) at each end part (10a,b) of the housing (11) having: a push member (15) arranged in a first slot (19) and a cover support member (16) arranged in a second slot (18) in the housing (11) and connected to the cover (13), wherein the housing (11) comprises a retainer member (21) having a retainer face (22) operable to engage the cover support member (16) and hold the cover support member (16) in a cover closed position, and the push member (15) is operable to engage the retainer member (21) such as to move the retainer face (22) out of contact with the cover support member (16).

The utility model relates to the technical field of window sashes, in particular to a window sash convenient for bidirectional ventilation, which comprises a rotationally arranged wind wheel body, a shell arranged on the outer side of the wind wheel body and air ports arranged on two sides of the shell, and a driving component used for driving the wind wheel body to rotate is mounted on the inner side of the shell. The driving assembly comprises a shell, a ventilation assembly is arranged in the shell, the ventilation assembly comprises a wind cutting assembly and a wind guide plate, the driving assembly further comprises wind wheel limiting plates, the wind guide plate is detachably connected with the wind wheel limiting plates at the two ends, and the wind cutting assembly is fixedly installed on the inner side of the shell. A smooth flow guide end face is arranged at the end, close to the air opening, of the air cutting assembly. The air cutting plate is installed on the inner side of the shell, the smooth flow guide end face is arranged on the side, close to the air opening, of the air cutting plate, air flow can be guided into the shell smoothly through the smooth surface of the air cutting plate, and the situation that the air flow is turbulent at the inlet of the shell is avoided.

An automatic closing shutter structure, comprising: a door body; a fixed door plate arranged in the door body; a movable door plate arranged in the door body; in a normal state, the fixed door plate and the movable door plate correspond to each other to leave a hollow part for air circulation; an operating mechanism electrically connected with a sensor for detecting smoke concentration, the operating mechanism is connected with the movable door plate, and when the sensor detects that the environmental smoke is higher than a preset value, the movable door plate is driven to move downward to block the hollow part to form a closed space, the movable door plate and the fixed door plate are integrated in the application, in a normal state, the movable door plate is opposite to the fixed door plate, and the left hollow part can be ventilated and radiated, when the sensor detects fire, the movable door plate is driven to move downward by the operating mechanism to block the hollow part, and the fire extinguishing gas is prevented from being discharged, so that multifunction is realized, and the user can only choose one use.

The utility model discloses a guide ventilation cut-off waveguide window for a dangling type explosion-proof wave shielding valve, which belongs to the technical direction of waveguide windows and comprises an inclined ventilation cut-off waveguide window, a static pressure absorption cabin, a horizontal ventilation cut-off waveguide window, a door leaf outer door plate and a door leaf inner door plate. The oblique ventilation cut-off waveguide window is welded to one end of the outer door plate of the door leaf, the oblique ventilation cut-off waveguide window, the static pressure absorption cabin and the horizontal ventilation cut-off waveguide window are used in cooperation, a double-layer combined ventilation waveguide structure is adopted, and a wave absorption material is attached to the static pressure absorption cabin, so that electromagnetic waves are reflected and absorbed for multiple times in the static pressure absorption cabin; electromagnetic wave energy entering the shielding body is greatly weakened, the overall shielding effectiveness is improved, meanwhile, the static pressure absorption cabin can evenly distribute air volume, stabilize airflow, reduce airflow vibration and noise, convert part of dynamic pressure into static pressure, reduce dynamic pressure loss, improve the efficiency of a ventilation system, enable air to be blown farther, and effectively reduce the length of the hexagonal waveguide structure.

The invention relates to the technical field of broken bridge aluminum, in particular to a broken bridge aluminum window which comprises a base, a pressurizing bin is formed in the left portion of the base, a pressure relief bin is formed in the right portion of the base, a partition plate is fixedly connected between the pressurizing bin and the pressure relief bin, a connecting opening is formed in the partition plate, and a plurality of air holes are formed in the front side and the rear side of the pressure relief bin. The front side of each air hole is fixedly connected with a membrane. An air bag is fixedly connected into the pressurizing bin, an exhaust pipe is fixedly connected to the tail end of the air bag, the exhaust pipe is fixedly connected into the connecting opening in a sealed mode, and the air bag is made of rubber. A rotating shaft is rotationally connected into the pressurizing bin, and a shifting piece is fixedly connected to the upper side of the rotating shaft. A pressing plate is fixedly connected to the rear side of the shifting piece, a spring is fixedly connected between the pressing plate and the inner side of the pressurizing bin, and a magnet is glued to the front end of the air bag.

The utility model discloses a door and window filtering ventilation structure which comprises an outer frame and a filtering ventilation transverse frame, the filtering ventilation transverse frame comprises a frame body, a cover plate and a strip-shaped air hole, the cover plate is located on the inner side face of the frame body and hinged to the frame body through a rotating shaft, the strip-shaped air hole is formed in the outer side face of the frame body, and an embedding groove communicated with the strip-shaped air hole is formed in the frame body. The embedded groove is filled with the filter strip, and the aluminum alloy net plate is fixed to the frame body through screws and used for fixing the filter plate. According to the structure, air is purified through the activated carbon filtering cotton strips, meanwhile, the ventilation effect is enhanced through the strip-shaped air holes and the cover plate, the filtering strips can be replaced when the filtering strips are aged or the effect is reduced, maintenance is easy, the service life is prolonged, and the overall structural stability is enhanced through the design of the supporting frame strips and the telescopic supporting rods; and the sealing rubber ring is used, so that the sealing performance after the cover plate is closed is ensured, and the filtering effect and the indoor air quality are further improved.

The utility model discloses an ecological window, belongs to smart home equipment technical field, ecological window includes: window frame, ventilation assembly and temperature adjustment member, ventilation assembly includes: connecting frame, fan, cover plate and drive member, connecting frame is connected to the inner side of window frame, connecting frame has the air flow passage that is conducted along the window frame thickness direction, fan is provided in the air flow passage, and the temperature adjustment member is provided with the drive member. The cover plate is movably connected with the connecting frame, and the driving component is in transmission connection with the cover plate to drive the cover plate to open and close the air channel; the temperature adjusting component is arranged in the air flow channel and used for providing cold energy or heat energy for the air flow channel, stable adjustment of the indoor environment can be achieved, the indoor and outdoor air exchange efficiency is more stable, and adjustment and control of the indoor temperature are more stable.

This utility model provides a fire door with ventilation function, including a door leaf, a door frame, and a ground layer. The door frame stands on the ground layer, and the door leaf is embedded in the door frame and connected to the door frame by hinges. The lower half of the door leaf is embedded with a fire-resistant device, which includes a ventilation blade frame, ventilation blades, fire-resistant blade shafts, fire-resistant blades, a temperature sensor, and a transmission mechanism. Fire-resistant blades are arranged within the ventilation blade frame by several equidistantly spaced fire-resistant blade shafts. The temperature sensor and transmission mechanism are located on one side of the ventilation blade frame. The temperature sensor is communicatively connected to the transmission mechanism, which drives several fire-resistant blade shafts to rotate synchronously, thereby opening and closing the fire-resistant blades to achieve rapid switching between normal ventilation and fire isolation functions. This utility model aims to solve the problems of poor ventilation performance, easily damaged ventilation devices, and poor fire resistance and sealing of traditional fire doors, thereby optimizing ventilation performance, improving the durability of ventilation devices, and enhancing fire resistance.

This invention provides a high-efficiency shielding building for radio telescopes, belonging to the technical field of electromagnetic shielding for radio telescopes. It includes a wall, a shielding window, and a shielding door. Ventilation openings are provided in the wall. The shielding window is fixedly connected to the inner wall of the ventilation opening, and an air duct is provided in the window. The shielding door is located at the ventilation opening; the shielding door is rotatably connected to the wall; the shielding door is used to open or close the shielding window. The high-efficiency shielding building for radio telescopes provided by this invention, while ensuring the building's electromagnetic shielding effectiveness, breaks through the limitation of air circulation by fully enclosed walls, constructing an air circulation path between the interior and the outside, effectively solving the core defect of lacking natural ventilation in existing technologies.

A cooling and heating system for a building (100) is described with a device (50) for adjusting the temperature level, which is designed to transport a heat transfer medium in at least one circuit from a respective first temperature level to a respective second temperature level. A pipe system (60) comprises a supply line arrangement (61) and a return line arrangement (62), in which the heat transfer medium circulates in the at least one circuit between the device (50) for adjusting the temperature level and a consumption arrangement. A plurality of window modules (1; 1-i; 1-j) is provided as the consumption arrangement, which are designed for thermal regulation, comprising heating or cooling, of the building interior, wherein the plurality of window modules (1; 1-i; 1-j) are arranged in at least two facade areas (111, 112) oriented in different cardinal directions in one or more levels (101- 103) of the building (100). One or more switching devices (91-98) controllable by a control unit (25) are arranged in the pipe system (60), wherein, depending on a first or second switching position, the supply line following the relevant switching device (91-98) in the flow direction is fed by the device (50) for adjusting the temperature level with the heat transfer medium of the circuit whose second temperature level is selected / controlled depending on a desired operating mode.

The utility model relates to an energy-saving window convenient to ventilate, and relates to the technical field of constructional engineering. The energy-saving window is arranged on a wall and comprises a fresh air system, a glass assembly, a window sash sectional material, a window frame sectional material, a window sill sectional material and a steel corner connector, and a draught fan in the fresh air system can achieve indoor and outdoor air circulation through indoor and outdoor pressure intensity; in cold winter or hot summer, indoor and outdoor ventilation can be carried out without opening a window, so that the loss of indoor heat is reduced on the premise of ensuring the freshness of indoor air; and according to a filter screen and pinhole-shaped through holes arranged in the fresh air system, the circulating air can be filtered, and the softness of the air flowing into a room is ensured, so that the indoor comfort is improved.

The invention provides a mirror cabinet door and a mirror cabinet. The mirror cabinet door comprises a mirror body and a door frame, the door frame is arranged on one side of the mirror body in the first direction and used for supporting the mirror body, and the first direction is perpendicular to the mirror body; the door frame comprises a plurality of frames and a control panel assembly used for interacting with a user, the control panel assembly and the frames define a ring, the control panel assembly is connected with one end, in the second direction, of the mirror body and attached to the back face of the mirror body, and the second direction is parallel to the mirror body. The invention relates to the field of bathroom furniture, and provides a mirror cabinet door and a mirror cabinet, a control panel assembly for user interaction is used as a part of a door frame for fixing a mirror body and can play a role in supporting the mirror body, and an electric control structure is integrated on the control panel assembly, so that the door frame is more convenient to assemble.

The present invention relates to a glazed assembly (A) configured to close an opening within a partition separating a first space, Sp1, from a second space, Sp2. It comprises a glazing unit that comprises : - a first glass pane, GP1, having a first face (F11), a second face (F12), an upper edge, a lower edge and lateral edges and having a first energetic absorptance, AE1; - a second glass pane, GP2, having a first face (F21), a second face (F22), an upper edge, a lower edge and lateral edges and having a second energetic absorptance, AE2; and - a first spacer assembly (31) positioned between the second face of the first glass pane and the first face of the second glass pane, over a perimeter thereof, that maintains a distance there between and hermetically coupling the first glass pane and the second glass pane; and defining a first internal volume (41). Within the glazing unit, the first face of GP1 is oriented towards the first space; part of the second glass pane extends beyond the spacer assembly in at least one edge, GP2e and the second energetic absorptance is greater than the first energetic absorptance (AE2 > AE1). The glazed assembly further comprises at least one thermo-electric module comprising at least one thermo-electric element (51). The thermo-electric module is coupled on the part of the second glass pane that extends beyond the first spacer assembly.

The invention discloses a linkage type emergency ventilation intelligent door and window, and relates to the technical field of intelligent doors and windows, the linkage type emergency ventilation intelligent door and window comprises a window frame and a wind and rain sensor, a second window is slidably mounted in the window frame, a lock body is arranged on one side of the bottom of the second window, and a gas sensor is fixedly mounted on the outer surface of the lock body through screws; a lock block is arranged below the lock body, and a collection plate is installed at the bottom of the lock block. According to the linkage type emergency ventilation intelligent door and window, when the second window is opened in place, a numerical value detected by the pressure sensor is within a normal range, and when data detected by the pressure sensor exceeds the normal range, a user can conveniently overhaul and maintain the whole door and window in time, aged parts can be replaced in time, and it is guaranteed that the second window is opened and closed normally; meanwhile, the pressure sensor can be protected from one side of the auxiliary frame through the design of an auxiliary spring and a pressing plate, external foreign matter is prevented from entering the auxiliary frame, and a certain protection effect is achieved.

The invention discloses a composite door and window with sound insulation and micro ventilation functions, and relates to the technical field of doors and windows. The window comprises a window assembly, a window frame assembly and an interlayer assembly annularly arranged between the window assembly and the window frame assembly. The interlayer assembly is provided with an inner side wall, an outer side wall and an inner cavity, the outer side wall is provided with an air inlet, the inner side wall is provided with an air outlet and a protruding piece, and the air outlet is covered with a petal piece so that sealing can be kept in the natural state. The window assembly is provided with a flexible belt, and the flexible belt is wound on the inner side wall of the interlayer assembly and connected with a sliding block. A sliding groove matched with the sliding block is formed in the window frame assembly. By sliding the sliding block, the flexible belt is tensioned and applies pressure to the convex piece, so that the inner side wall deforms, the deformation drives the petal piece to turn up through structural association, and therefore the air outlet is opened, and the micro-ventilation function is achieved. The micro-ventilation window is exquisite in structure, and controllable and quiet micro-ventilation is achieved while high sound insulation and sealing performance are guaranteed.

The ceiling structure comprises a ceiling frame formed by four side plates in a surrounding mode in sequence, a cover plate is arranged at the upper end of the ceiling frame, openings are formed in the side plates, shutters are arranged in the openings, hinge seats are arranged on the front sides of the side plates, hinge shafts are arranged at the upper ends of the shutters, and the shutters are arranged on the hinge seats. The hinge shaft is rotationally installed on the hinge seat, and a driving mechanism used for driving the shutter to swing with the hinge shaft as the axis is arranged on the inner side of the side plate. Firstly, the shutters are not fixedly arranged on the side plates and are hinged to the hinge seats through hinge shafts at the upper ends, however, when the shutters cannot achieve good ventilation and heat dissipation, heat in the hoistway is hot, at the moment, the shutters can be driven by the driving mechanism to swing outwards, the openings in the side plates are exposed, and then the shutters are driven by the driving mechanism to swing outwards. Therefore, the ventilation and heat dissipation effects in the hoistway are greatly improved, the comfort during elevator taking is improved, and the requirements of users are met.

The utility model belongs to door and window technical field, concretely relates to a building door and window automatic ventilation heat preservation system, including two symmetrical first branch boards, and two first branch boards are horizontal setting, two first branch boards between being equipped with two symmetrical second branch boards, and two second branch boards are vertical setting, first branch board and second branch board between all fixedly connected, two first branch boards between clamping have first acrylic plate, and be equipped with air outlet on first acrylic plate, the air outlet on clamping have air pipe, two first branch boards between clamping have second acrylic plate, and be equipped with air inlet on second acrylic plate. The utility model effectively realizes the exchange of indoor and outdoor air, keeps the indoor air fresh, can automatically close the open door and window, prevents the indoor rain when raining and the temperature from falling sharply, plays the role of heat preservation, utilizes clean energy, energy -concerving and environment -protective, reduces the use cost, reduces the dependence on traditional energy.