133results about How to "Expand the radiation range" patented technology

The invention discloses a novel-standard sign online education platform. The online education platform realizes local or foreign dissemination of teaching information by the Internet, and comprises an interactive education server, a portal management center system and a demonstration center system, wherein the portal management center system and the demonstration center system are both connected with the interactive education server by the Internet; the Internet is also connected with a client terminal system; the client terminal system comprises a terminal server, a teacher terminal, student terminals and parent terminals, and is connected with the teacher terminal, the student terminals and the parent terminals respectively; the portal management center system comprises built-in functional modules for online providing related statistical analytical information and personalized information for a teacher, students and parents; and the demonstration center system controls the normal running of each piece of projection display equipment and demonstrates information shared by the education platform. The novel-class sign online education platform maximally utilizes high-quality educational resources, and effectively improves the teaching efficiency by an Internet technology.

The invention relates to a non-breakpoint metal frame based mobile phone antenna. The mobile phone antenna structure comprises a completely-closed metal frame and a main board arranged in the metal frame, wherein a main antenna clearance region, a sub antenna clearance region and a three-into-one antenna clearance region are formed between the closed metal frame and the main board; and a main antenna feeding point, a sub antenna feeding point and a three-into-one antenna feeding point are arranged in the corresponding main antenna clearance region, the sub antenna clearance region and the three-into-one antenna clearance region respectively; the feeding points are electrically connected with the metal frame through connecting points respectively; and the three side edges of the closed metal frame are electrically connected to the corresponding side edges of the main board through grounding points. According to the mobile phone antenna, the metal frame is adopted for radiation, so that the complexity of the mobile phone structure is effectively reduced, the cost of the mobile phone is lowered, and the performance of the antenna is improved; and in addition, the mobile phone antenna is simple and attractive in structure and excellent in performance, and can be widely applied to the mobile phones with the completely-closed metal fames, as well as can satisfy the high-quality demands of the mobile phones.

The invention discloses an antenna structure, an operating method therefor, and antenna equipment. The antenna structure comprises a first dielectric substrate; a first electrode layer and a second electrode layer which are disposed at one side of the first dielectric substrate and are arranged oppositely; a liquid crystal layer disposed between the first electrode layer and the second electrode layer, wherein the first electrode layer comprises a first electrode bar and a second electrode bar, which are insulated with each other. The first and second electrode bars can form a horizontal electric field, thereby enabling the orientation of liquid crystal molecules in the liquid crystal layer to tend to be the direction of the horizontal electric field. The radiation range of the antenna structure can enlarged without an additional orientation layer, the difficulty of the preparation technology of the antenna structure is reduced, and the cost is saved.

The invention belongs to the technical field of radiation cooling, and particularly relates to a radiation cooling coating with a self-cleaning function and a preparation method thereof. The radiationcooling coating comprises a bottom layer binder, and a radiator and hydrophobic nano particles, which are covered on the bottom layer binder; and an infrared emission peak of the radiator is positioned within an infrared radiation waveband range of 8 to 13 mum and at least covers one wave band interval in the range of 8 to 13 mum. According to the invention, by utilizing high hydrophobicity of the nano hydrophobic particles, the radiation cooling coating has a self-cleaning effect and a phenomenon of reducing the cooling effect due to dust accumulation is avoided. The radiation cooling coating disclosed by the invention has high emissivity on the wave band of 8 to 13 mum, is large in transmittance on a visible light wave band, is excellent in lighting performance, can also reduce absorption on energy on the rest of wave bands and ensures the cooling effect. The radiation cooling coating further adopts two different particle sizes of radiators, so that the radiation range is widened, ground heat is radiated to the outer space to the greatest degree, and the cooling effect is improved.

A hydrogen refueling station network facility can inject hydrogen for hydrogen cell hydrogen storage cylinders in an area and forms a hydrogen distribution type energy resource together with hydrogen cells. The energy resources around a city are used for producing hydrogen through various hydrogen making methods. Energy resource conversion is realized through the procedures of pressurization, conveying, storage, air-entrapping and the like. A circular process including the procedures of hydrogen production, conveying with a gas storage cylinder set trailer, consumption of hydrogen cells, conveying with the gas storage cylinder set trailer and hydrogen production goes on all the time. The energy resource provided in the scheme does not use circuits of a power grid and is independent from the power grid, and the gas storage cylinder set trailer is used for supplying gas to the hydrogen cells as a movable pipeline. By means of the scheme, the greatest effect is that the city is changed into a hydrogen energy society, and zero emission is realized. If every city in China implements the scheme, China can develop into the hydrogen energy society soon, and great significance is achieved.

The invention discloses a microwave oven and an exciter for the microwave oven, wherein the exciter comprises a waveguide box, a coaxial connector and at least one antenna rod, wherein a cavity is in the waveguide box; one end of the cavity is opened and the other end of the cavity is closed along the length direction of the waveguide box; the coaxial connector is positioned in the cavity; the upper end of the coaxial connector passes through the top wall of the waveguide box; the antenna rod is arranged in the cavity and communicated with the coaxial connector; and the antenna rod extends in a plane vertical to the axis of the coaxial connector. According to the exciter for the microwave oven, the antenna rod and the coaxial connector are communicated, so that microwaves are converted from coaxial propagation to waveguide propagation in the conductivity process, and therefore, the reflection power is reduced; the microwave radiation range is enlarged; and the microwave transmission efficiency is improved.

The invention provides a method for treating degradation-resistant organic pollutants in waste water and overcomes the defect that iron nanoparticles are prone to agglomeration when the iron nanoparticles are subjected to waste water treatment in the prior art. In order to solve the technical problem, the technical scheme includes that the method includes the following steps: under the pneumatic ultrasonic action, adjusting pH to be 1-5, adding ferrous ion salt, casting the iron nanoparticles in, adding hydrogen peroxide, performing solid-liquid separation after the pneumatic ultrasonic action, and discharging the waste water after the waste water reaches the standard. Comparing a pneumatic ultrasonic field with a common electric ultrasonic field, dispersion and radiation range can be widened, and the iron nanoparticles can be dispersed in the waste water more easily; air serves as a medium generating the pneumatic ultrasonic field, functions of an oxidizing agent (O2), stirring and cutting are provided for a waste water treating system, but only an air compressor generating the pneumatic ultrasonic field is energy-consuming equipment, so that energy-saving effect is achieved.

This invention discloses a device accessing network configuration method and an appliance thereof, which is used for wireless access point method including the following steps: request information of receiving device configuration access; Load the access configuration data into manufacturer customizing information fields of beacon frame, which is mentioned in the broadcast. The device accessing network configuration method and appliance in this invention utilizes beacon frame to carry configuration data and route device broadcast to transmit this kind of beacon frame. It could provide larger radiation scope. Since beacon frame is standard frame of Wifi protocol, the technology is mature. The support of Wifi device on this frame is stable and this could maximally optimize compatibility. At the meantime, since single beacon frame could carry all the configuration data, it is not related to problems of subpackage and packages so as to ensure the success rate of configuration.

The invention provides a turbidity detector and a detection method. A circuit module and an optical module are connected with each other, the optical module is arranged at the first end of the shell and is detachably connected with the first end of the shell, and a receiving unit and a transmitting unit are respectively communicated with the outside of the shell through light guide columns. The transmitting unit transmits the detection light according to a detection control instruction, the receiving unit receives the detection light and transmits a received light signal to the circuit module,and the control unit is connected with the receiving unit and the transmitting unit separately through a data transmission processing unit, sends a detection control instruction to the transmitting unit, acquires the received optical signal through the receiving unit and calculates to obtain the water turbidity data. According to the present invention, the interference of sunlight to the sensorsis reduced by adopting a filter; by transmitting a square wave signal and processing the signal, the interference of the light with the same wavelength in the sunlight on the received signal is reduced; and by adopting a light receiving and emitting access with a certain angle, the light radiation range is expanded, and the detection accuracy of the sensor is improved.

The invention discloses a directional ultra-wideband magnetic dipole antenna and a ground penetrating radar pavement vertical crack detection method, relates to the road and project quality detectiontechnology, and solves the problems of existing detection method that the pavement is damaged and thus hinders pavement maintenance, an effective abnormal signal about vertical crack generation is hard to acquire since an electric dipole antenna limits the radiation direction and the through current, etc. The magnetic dipole antenna is a loop antenna which is formed by an epoxy glass cloth layer copper-clad laminate; the front of the laminate is covered with a circular metal copper patch with resistors; the resistors are uniformly distributed on the metal copper patch; and a feed point is located right below the circle center of the circular metal copper patch. According to the invention, a relatively wide radiation range is realized on the crack development side, and the reflected signalis strong; and moreover, the ultra-wideband magnetic dipole antenna has relatively great frequency bandwidth as well as higher detection resolution on a tiny crack.

The invention discloses an LED driver based on Internet of Things. The LED driver comprises an AC / DC power supply, a DC / DC isolated power supply, a first linear voltage-stabilized power supply, a second linear voltage-stabilized power supply, a dimming driving circuit, a Bluetooth module and a radio frequency impedance matching network, wherein the Bluetooth module is connected with one end of a digital communication isolation circuit, the other end of the digital communication isolation circuit is connected with the dimming driving circuit, a connection point between the Bluetooth module andthe digital communication isolation circuit is connected with an environment light sensor, one end of a zero-cross isolation detection circuit is connected with a live wire and a null wire, the otherend of the zero-cross isolation detection circuit is connected with the Bluetooth module, and the Bluetooth module is connected with a relay control circuit. The invention also discloses an implementation method of the LED driver based on Internet of Things. The LED driver provided by the invention has the characteristics of being simple in structure, low in cost, excellent in dimming performance,high in safety and excellent in using effects, and so on.

The invention especially relates to a radiative cooling film with a self-cleaning function and a preparation method thereof, belonging to the technical field of radiative cooling. The radiative cooling film comprises a base film and further comprises radiators and hydrophobic nanoparticles dispersed in the base film, wherein the infrared emission peaks of the radiators are in the infrared radiation band range of 8 to 13 [mu]m and covers at least one band interval in the range of 8 to 13 [mu]m. According to the invention, the high hydrophobicity of the hydrophobic nanoparticles is utilized so as to allow the radiative cooling film to have self-cleaning effect, so the phenomenon of reduction in cooling effect due to dust accumulation is avoided. The radiative cooling film of the invention has high emissivity in the band of 8 to 13 [mu]m, high transmittance in a visible light band and good lighting performance, and can reduce the absorption of energy in other bands by the object to ensurecooling effect. Furthermore, the radiators with two different particle sizes are adopted in the invention, so a radiation range is broadened, and ground heat is maximally radiated to the outer space,thereby improving cooling effect.

The invention provides an interactive advertisement system based on motion sensing. The interactive advertisement system comprises a server side and a client side. The client side is provided with a program module, a display unit and a motion sensing unit. The program module comprises a console program and at least two application programs with implanted advertisements. The motion sensing unit records the spatial position of a user and live-action images and further captures the joint actions of the user. A console selects the proper application program according to the live-action images sent by the motion sensing unit and adjusts the position of the implanted advertisement in the application program according to the spatial position of the user. The console program integrates the joint actions of the user and the application programs and then outputs the joint actions of the user and the application programs to the display unit, and then display images with the interactive effect are formed. By the adoption of the interactive advertisement system based on motion sensing, the motion sensing unit records and controls the programs so that the user interacts with the application programs, the user actively receives implanted advertisement information in the application programs in the interaction process, and the advertisement propagation effect is good.

The invention discloses a dual-reflector microwave antenna which comprises a main reflector, an auxiliary reflector and a feed pipe connected with the main reflector, the feed pipe is connected with a feed at one end on the inner side of the main reflector, and the dual-reflector microwave antenna is characterized by further comprising a medium support, one end of the medium support is connected with the feed, the other end is connected with the auxiliary reflector, and the medium support comprises a ladder-shaped forming curved surface which can carry out multiple reflection on a signal emitted by the feed or the signal reflected by the main reflector. The invention further discloses another two dual-reflector microwave antennas. The adoption of the dual-reflector microwave antenna can upgrade the radiation efficiency of the antenna, and obtain high gain and low voltage standing wave ratio.

The invention relates to a Yagi antenna, which comprises a printed metal layer and a dielectric substrate, wherein the printed metal layer is printed on the dielectric substrate; the printed metal layer comprises a dipole unit, a plurality of metamaterial units and a metal strip reflector; the dipole unit and the metal strip reflector enable the Yagi antenna to have a first pattern and enable the Yagi antenna to still keep the traditional radiation feature; the metamaterial units and the metal strip reflector together form a medium with a negative dielectric constant and a negative permeability and enable the Yagi antenna to have another radiation feature, and a second pattern with the radiation direction opposite to the first pattern is provided; and the dipole unit and each metamaterial unit enable the Yagi antenna to have different working bands respectively, and thus, normal working of the Yagi antenna under the above two radiation features can be ensured respectively. Thus, the Yagi antenna has two patterns with the opposite radiation directions under different working bands, and compared with the traditional Yagi antenna, the radiation range is expanded.

The invention provides an air pollutant detector based on a graphene infrared emission unit. Multi-infrared radiation is realized by utilizing a wrinkle-shaped structure of graphene microspheres in amulti-infrared emission coating under the cohesion and combination effects of macromolecules, the heat generation effect of a graphene layer, the insulation effect of an insulation aluminum-silicon compound and cooperation of small-molecule high-radiation inorganic particles; the detection unit is used for receiving infrared light which is emitted from the infrared emission unit and passes throughgas to be detected after being filtered by an optical filter, so that the detection of air pollutants is realized; and the optical filter of the gas detection device can be replaced, and the gas detection device is used for detecting various gases and is simple to operate and low in cost.

The invention is suitable for the technical field of optical measurement, and provides a phase deflection measurement method, system and terminal based on a curved screen, and the method comprises the steps: sequentially displaying a set number of phase shift fringe patterns on a curved display screen, and controlling an image collector to carry out the image collection of a to-be-measured object, and respectively obtaining a first virtual image corresponding to each phase shift fringe pattern, and performing three-dimensional surface type reconstruction on the to-be-measured object by adopting a phase deflection technology based on the relative pose relationship between the curved surface display screen and the image collector and the first virtual image. According to the scheme, the complete phase information of the surface of the object with the large curvature can be obtained, and the reconstruction effect of the three-dimensional shape of the high-reflection object is improved.

The invention provides an antenna module and a terminal, and belongs to the technical field of communication. The antenna module comprises at least two antenna arrays; in the at least two antenna arrays, any one antenna array is perpendicular to at least one antenna array except the any one antenna array; each antenna array comprises an insulating plate, a grounding layer and a plurality of antenna array elements, the plurality of antenna array elements are parallel to one another, the number of the antenna array elements in a first direction is not equal to the number of the antenna array elements in a second direction, and the first direction is perpendicular to the second direction; and the insulating plate comprises a first surface and a second surface, the plurality of antenna array elements are located on the first surface, and the grounding layer is located on the second surface. According to the embodiment of the invention, each antenna array realizes polarization, the signal intensity in the polarization direction is enhanced, the radiation range of the antenna array is expanded, dual polarization of the antenna array is realized by arranging the antenna arrays which are perpendicular to each other, and the radiation range of the antenna module is expanded.

The invention discloses a ventilation system of an integrated house. The ventilation system comprises a fixed section and a movable section. The end of the fixed section penetrates through a ceiling and then forms an air inlet. A plurality of supporting pipes are connected to the movable section, penetrate through the ceiling and then form air outlets. A guiding rail is arranged on the inner wall of a floor. A dovetail groove is formed in the guiding rail. One end of a connecting rod is matched with the dovetail groove and slidably arranged in the dovetail groove. The other end of the connecting rod is connected with the movable section. The movable section communicates with the fixed section through a connecting hose. A fan, a baffle plate with holes, a negative electricity grating plate and an activated adsorption assembly are mounted in the fixed section in sequence. The air inlet end of the fan communicates with the air inlet. The air outlet end of the fan directly faces the baffle plate. A positive electricity tungsten filament is arranged between the baffle plate and the negative electricity grating plate. The activated adsorption assembly directly faces the connecting hose. By adjusting the position of the movable section, the size of purifying space is adjustable, so that the poor purifying effect of indoor air or energy resource waste is avoided.

The invention relates to a multifunctional shoulder lamp for policemen. The multifunctional shoulder lamp solves the problems that in the prior art, the structure is complex, use is inconvenient, and the application scope is narrow. The multifunctional shoulder lamp is characterized in that a button switch is installed at the top, a magnetic attraction round sheet is installed on the lower surface of the compression end of a shoulder clamp, a top shooting LED lamp is welded to the front face of a circuit board, and flat shooting LED lamps are welded to the periphery of the back face of the circuit board; and an olecranon hook is arranged at the clamping end of an upper clamp, the upper clamp and a lower clamp are provided with arc-shaped opening edges, and the circuit board is further provided with a gyroscope module, a GPS module and a wireless radio frequency receiving and transmitting module. The multifunctional shoulder lamp has the beneficial effects that the radiation scope of LED lamp light is wide, the alarming effect is higher, and the wearing comfort of the human body and the stability of the shoulder lamp are improved. The multifunctional shoulder lamp can be worn on the human body, can be singly attracted to magnetic attraction objects such as a car, a guardrail and an alarming cone, and the alarming effect is achieved; and multiple shoulder lamps can be used in a combined manner, can be combined to be in an arrow shape or a letter shape and the like, and can achieve the alarming effect, and the application scope of the shoulder lamp is accordingly enlarged.

The invention provides an array of graphene-based nano-scale point sources, and belongs to nano-scale luminescent devices. The array of the point sources comprises a substrate, wherein an insulating dielectric layer is covered on the substrate, and a metal interconnecting wire is buried in the dielectric layer; a metal electrode array is arranged above the dielectric layer; the metal interconnecting wire is connected with all electrode in the metal electrode array; and a layer of graphene membrane is coated on the metal electrode array, and a bias voltage is applied on the metal electrodes and the graphene membrane, or a layer of graphene membrane is coated on two adjacent electrodes in the metal electrode array, and a bias voltage is applied between the adjacent electrode pairs. A manufacturing process of the invention can be compatible with the silicon substrate process technology, and has high integrated level; and by the array, the irradiation range and light intensity of light sources can be improved substantially, and the array can be used in high-resolution display devices or information storage systems as a display array or an array of storage units.

The invention discloses a fishing boat spotlight stand, which comprises a base, a support frame and a light stand. The upper part of the base is rotatably connected with a support frame through a pair of first rotating seats, and the support frames are equidistantly arranged through the light frame rotating shaft. There are ten light stands, and the rotating shafts of the light stands are located between the supporting frames and are connected with light-concentrating plates. Nine lamp holders are equidistantly arranged on the concave surface of the light-concentrating plates. The above-mentioned control handle is connected with the light frame direction control rod through the connecting ring. In the present invention, compared with the traditional divergent lamp holder, the lamp holder is provided with an arc-shaped concentrating plate, which can concentrate the light so that it can achieve a farther coverage in a certain direction, and at the same time, it can effectively block Rainwater wets the lamp holder to cause a short circuit, which greatly improves the radiation range of the fish luring lamp and prolongs the service life of the lamp.

The invention discloses an electric pole climbing and lifting device for hot-line work and a using method thereof. The electric pole climbing and lifting device comprises a climbing mechanism arrangedon an electric pole, a lifting platform arranged on the climbing mechanism and a suspension mechanism connected with the electric pole and the lifting platform. The climbing mechanism comprises an arc-shaped climber, the climber is in an inclined shape with one low end and one high end, a first walking wheel tightly attached to the telegraph pole and a first driving motor device in transmission connection with the first walking wheel are rotationally arranged at the lower end of the climber, and a second walking wheel tightly attached to the telegraph pole is rotationally arranged at the higher end of the climber; an operation platform is hinged to the lifting platform; the suspension mechanism comprises a suspension arm making contact with the telegraph pole and the lifting platform, anda third walking wheel tightly attached to the telegraph pole is arranged on the suspension arm in a rotating mode. The wheels in contact with the electric pole are driven by a motor to rotate, lifting of the lifting platform is achieved, meanwhile, the radiation range of an operation area is enlarged through the operation platform, labor intensity and risks in distribution network hot-line work are reduced, and operation efficiency is improved.

The invention provides a method for collecting broken garbage on a water surface. The method comprises the following steps that a water pump is started, water in an outer barrel is discharged out of the outer barrel through the water pump, the water level in the outer barrel is lowered, and an inner barrel floating in the water in the outer barrel moves downwards due to lowering of the water level; the water continues to be discharged, when the inner barrel descends to a certain position to meet the requirement that water outside the outer barrel crosses an upper port of the inner barrel to be injected into the inner barrel, the water level in the outer barrel gradually rises again, and at the moment, the inner barrel moves upwards; when the inner barrel moves upwards, water injection is reduced, and the inner barrel moves downwards, so that the inner barrel moves up and down repeatedly below the water surface; and the water pump continuously works, the water outside the outer barrel flows towards the center of the inner barrel, garbage on the water surface flows into the inner barrel along with a water flow, and a garbage breaking device is fixed in a water suction opening of the inner barrel or a space of a filter screen arranged on the inner side of the inner barrel and breaks the collected garbage to the particle size capable of penetrating through the filter screen. According to the method, continuous collection of garbage can be achieved.

The invention relates to an illuminating device, which comprises a solid light source with a central symmetry axis and an optical lens. The optical lens is arranged opposite to the solid light source and comprises an incident light surface and an emergent light surface opposite to the incident light surface, wherein the at least one of the incident light surface and the emergent light surface is provided with a plurality of first strip-shaped microstructures extended along a first direction; and the plurality of first strip-shaped microstructures are symmetrically arranged on the two sides of the central symmetry axis so as to expand the radiation range of ray in a second direction vertical to the first direction. The optical lens arranged in the illuminating device can enlarge the radiation range of the ray after emergence, so that a larger illuminating range is obtained.

The invention provides a reflecting surface self radiating LED indoor illuminating lamp, which comprises a circuit board, an LED and a reflecting shade for reflecting an LED light source; the reflecting surface of the reflecting shade is a convex surface; the LED is arranged on the circuit board, and a clearance is reserved between the circuit board and the convex surface; the LED is positioned between the convex surface and the circuit board; one side of the circuit board facing to the convex surface is coated with a reflecting layer and the circuit board is an aluminum substrate; the LED is directly welded on the aluminum substrate; and the circuit board is connected with a circuit power supply through a conducting wire; and the circuit power supply is separated from the circuit board. The convex surface of the invention disperses the light from the LED, so that the convergent light is dispersed, the irradiation range is enlarged, and light is uniform in spacial range with the reflection of the reflecting layer. The LED is positioned between the convex surface and the circuit board, the aluminum substrate is exposed in the air so as to form good heat radiation and air convection; and the illuminating lump has the advantages of simple structure, good radiation effect, uniform illumination, and the like.

The invention discloses a heating ventilation air conditioning system capable of achieving fast energy transmission and distribution. The heating ventilation air conditioning system comprises a cold / heat source system (1), a heat exchange station (2) and a terminal cold / heat supply network (3). The heating ventilation air conditioning system is characterized in that a fast transmission system (4) is connected with the cold / heat source system (1) and the heat exchange station (2), a phase change capsule (5) is used as an intermediate medium for fast transmission of energy, and a pipeline transmission and distribution system can be replaced.

The invention discloses a lens antenna based on a MEMS array. The lens antenna comprises antenna array units. Each antenna array unit is mounted at an angle with the horizontal ground, and multiple antenna array units are arranged into a concave lens array and a convex lens array. The MEMS antenna array units are arranged in the form of lenses, wherein the convex lens antenna array units do not need to rotate and the radiation range of the antenna can be expanded; the concave lens antenna array units converge the generated signals at one point and then transmit them so as to enhance the transmission intensity and realize point-to-point communication; meanwhile, no mechanical rotation is needed, the antenna units are mounted at a certain angle and the radiation surface of the antenna unitshas a larger coverage by the modulated torsion so that the scanning rotation of the beams is realized by the mechanical radar relying on the conventional mechanical rotation can be avoided and the influence of slow reflection speed, low update speed and poor resolution of the mechanical scanning target can be improved.

The invention relates to an air duct system, in particular to an attached type air duct system for a building external wall. In seriously polluted street canyons where automobile exhaust is released massively, the problem of air pollution concentration in the street canyons is difficult to solve due to adverse weather conditions such as calm wind and temperature inversion, and the microclimate of a local environment is difficult to improve. The attached type air duct system for the building external wall comprises a bottom air tunnel assembly, a top air tunnel assembly, a vegetation interlayer and a plurality of standard part air tunnel assemblies. The top air tunnel assembly, the standard part air tunnel assemblies and the bottom air tunnel assembly are sequentially communicated from top to bottom and are all located on the building external wall. The bottom end of a bottom air tunnel body is communicated with an air intake hood, the bottom of the air intake hook is a main air inlet, a lateral air inlet is formed in the sidewall of the air intake hood, and the bottom air tunnel body is fixedly connected to the building external wall through a fixing clamp. An air hood is arranged on the top of a top air tunnel body, and a diagonal brace is obliquely and fixedly connected between the top air tunnel body and a building top floor. The attached type air duct system for the building external wall is used for improving the quality of air between buildings.

The invention provides a shot blasting deruster, which comprises a deruster body. The deruster body comprises a derusting bin, a spraying bin, a shot blasting device, spraying equipment and an electric control box; the derusting bin comprises a workpiece fixing device and a screening device, and the screening device comprises a first filtering screen, a second filtering screen, a collecting bin, asecond motor and a second connecting rod; the spraying bin comprises a spraying bin body and a waste liquid recovering bin; the shot blasting device comprises a shot blasting equipment main body anda dedusting device, and the dedusting device comprises a dedusting pipe, an exhaust fan and a dedusting box; and the spraying equipment comprises a liquid storage box, a water pump, a liquid feeding box, a liquid discharging pipe and a spray head, and the liquid storage box comprises a box body, a liquid injecting hole, a second sensor and an LED lamp. The function of automatic shot conveying is achieved, shot is dedusted, the undamaged shot can be recycled, finally a workpiece is sprayed with an anti-rusting agent, and the shot blasting deruster is simple in structure, complete in function and high in automation degree.