434results about How to "Strong wind" patented technology

The invention discloses a vehicle-typed double-mast elevating high-spraying wind-proof atomizing machine vehicle, which is characterized by the following: setting anchoring volume machine on four angles of truck wagon; loading cable on the anchoring volume machine; loading current rectifier in the spraying cylinder; setting adjustable injector in front of the current rectifier; connecting adjustable injector and another liquid outlet of three-cylinder piston pump through liquid supplying pipe; setting electric control box, anchoring electric control box, elevating electric control box and spraying angle electric control box in the operating chamber.

An automatic roller shade includes a shade body rotatably mounted to between a first and a second mounting bracket; a stop mechanism mounted in an end of a roller of the shade body; and a driving mechanism mounted in another opposite end of the roller. The stop mechanism includes a winding element connected to the roller and a spiral spring element having an end connected to the winding element. The spiral spring element enables a balance between a force for lifting or winding a shade fabric of the shade and the gravitational force lowering or unwinding the shade fabric. The driving mechanism at the other end of the roller can adopt a micro motor as a power source and the micro motor can be invisibly located inside the roller, enabling the automatic roller shade to have reduced power consumption and manufacturing cost while having a compact and esthetic appearance.

A mechanism for guiding roll up doors made from a foldable sheet. A longitudinally extending wall of the foldable sheet is secured to a fixed structure and two longitudinally extending lateral walls extend perpendicularly to form another two reversible folds resulting in two longitudinally extending inner walls at a spaced apart and parallel relationship with the two lateral walls. From one of these inner walls, a longitudinal wind bar extends at a predetermined cooperative angle. Upon the application of a wind load to the door slats, the load is transmitted to the foldable sheet guiding assembly from the slats directly and through the wind lock assembly through at least four contact points. The laterally articulated door slats include longitudinal hook portions or wind lock assemblies that slidably coact with the wind bar to keep the slat in place.

Soil-free living roof and wall systems comprising a living layer of Bryophytes, Lichen, And Vascular Epiphytes (BLAVE) on the surface of a thin, light-weight, flexible, fire-resistant mat of mineral wool having a density in the range of about 6-12 lbs / cu ft and thickness in the range of about ⅜″ to about ¾″. Mats are provided in modular units on the order of 2′×4′; no irrigation or growth medium is used. The mats are adhered to a roof or wall with adhesive or mastic, or may be secured with fasteners. In the preferred embodiment, modular units include flexible mineral wool mats over a base sheet of non-woven plastic fibers, on the order of from 2-4 mm thick, and a wide-mesh plastic netting over the BLAVE layer, sewn through to the base layer. Methods of mat module manufacture, innoculant mix production, installation and cultivation / propagation of BLAVE are disclosed.

The invention relates to a pneumatic machine which uses wind energy a power. It can be widely used in variable machines driven by the power device. It comprises a wind collection cover, a wind tunnel, a blade wheel, a blade, and an axle. It is characterized in that: the wind collection cover is integrated with the wind tunnel; the wind collection cover has several cyclone guide channel; the end of wind tunnel has an axial support connecting the axle; and the axle has the blade wheel and the blade. The wind energy collected by the wind collection cover and the cyclone guide channel is strong and through the wind tunnel to avoid distributed to generate wind tunnel effect. The invention has one axle and several blade wheels which can rotate in same direction while each two nearby blade wheels may have different rotational directions to avoid layered. The blade has folded angle and a wind discharge outlet with self-protective function to improve the efficiency of invention. The invention has easy operation, while it can improve the efficiency and the rotational speed of blade wheel with better economic and social benefits.

The invention relates to a dust separator in a vacuum cleaner, which comprises a bucket body, a single cyclone separation structure and a parallel cyclone separation structure, and is characterized in that an upper layer and a lower layer of the bucket body are separated by a clapboard; the lower layer of the bucket body is provided with a dust cup of which the upper part is provided with a discharge opening, and a cylindrical filter screen cover component is arranged in the dust cup; a primary cyclone channel is formed between the dust cup and the filter screen cover component, and a big dust collecting cavity is formed between the dust cup and the bucket body; an inner dust bucket of which the upper part is provided with an opening is arranged in the cylindrical filter screen cover component, a small dust collecting cavity is formed inside the inner dust bucket, and a secondary air guide channel is formed between the inner dust bucket and the filter screen cover component; and each air guide pipe of the parallel cyclone separation structure is communicated with the upper layer space of the bucket body and a main air outlet of the bucket body through a mixed gas chamber. In the separator of the invention, the small dust collecting cavity is arranged in the inner dust bucket positioned in the cylindrical filter screen cover component to fully utilize the space of the bucket body, thus the structure of the separator is more reasonable.

The invention provides an air conditioner and a control method and system thereof. The control method includes allowing an ultrasonic sensor to detect a distance from an obstacle to the air conditioner; according to the distance detected, determining operating parameters of the air conditioner to allow the air conditioner to operate according to the operating parameters determined. According to the technical scheme, measures such as longer air supply time and bigger wind force are taken for the obstacle farther away from the air conditioner so that ensured is that hot air or cold air supplied by swing blades of the air conditioner is more evenly distributed to a whole room; the problem that the prior air conditioner has uneven refrigerating and heating action on multiple areas of the room is solved; comfort level is increased for users.

The invention discloses an air conditioner indoor unit. The air conditioner indoor unit comprises a shell body, a heat exchanger and at least two centrifugal fans. The shell body is provided with an air inlet and at least two air outlets. At least two spaced air channels are limited in the shell body. The at least two air channels are in one-to-one correspondence with the at least two air outlets and communicated with the air inlet and the corresponding air outlets respectively. An air tunnel penetrating through the shell body is formed in the shell body. The heat exchanger is arranged in the shell body. The at least two centrifugal fans are arranged in the at least two air channels respectively to drive external air to enter from the air inlet and blow out from the corresponding air outlet after being subjected to heat exchange with the heat exchanger. The air tunnel is located between the air outlets of the at least two air channels, and the air blowing out from the at least two air outlets forms negative pressure on the front side of the air tunnel to drive the air on the rear side of the air tunnel to flow on the front side of the backward part of the air tunnel. According to the air conditioner indoor unit, the attenuation degree of air volume is small, air is sent farther, and the structure is simpler.

An apparatus for pre-heating ventilation air for a building. The apparatus includes a first sunlight-absorbent collector panel on the building. The panel is exposed to ambient air and defines a first air collection space between itself and the building. The first sunlight-absorbent collector panel has a plurality of air inlet openings to allow the ambient air to pass through the openings to the first air collection space. A second sunlight-absorbent collector panel on the building is adjacent the first sunlight-absorbent collector panel and defines a second air collection space between itself and the building. The second sunlight-absorbent collector panel has a plurality of air inlet openings to allow air to pass through the openings to the second air collection space. A glazing covers the second sunlight-absorbent collector panel and defines an intermediary air flow chamber between itself and the second sunlight-absorbent collector panel. The intermediary air flow chamber is in communication with the first air collection space to receive air therefrom. The air inlet openings in the second sunlight-absorbent collector panel provide communication between the intermediary air flow chamber and the second air collection space. An air outlet extends from the second air collection space into the building for air flow therethrough. A fan communicates with the air outlet for moving air from the second air collection space into the building, through the air outlet.

The invention relates to a lifting high-throw air-assisted spraying vehicle for forest protection. The spraying vehicle comprises that: a drug barrel and a tri-cylinder plunger pump connected with a motor via a belt conveyer is respectively mounted on the back and the front of the truck, a pipette and a return pipe are connected into the drug barrel, a axial flow fan is mounted on the back of the spray duct, a spray nozzle is arranged on the ring-shape feed pipe in flare opening of the spray duct, a operating room and a generating set are mounted in the front of the truck, and a lifter and a spray duct are respectively arranged on the middle and the top of the truck, the drainage pipe of the tri-cylinder plunger pump communicates with the ring-shape feed pipe on the spray duct via a spray hose winder, the power supply of the motor, the axial flow fan, and the lifter are respectively connected to the electric cabinet via conducting wires, and the power supply of the electric cabinet is connected to the generating set. The height of spray duct can be adjusted to up to 22m, the spray duct can spray in the process of lifting and sliding, and the throw height can be up to 50m. The spraying vehicle in the invention is suitable for use in the protection of curing of forest.

A new-style air returning furnace relates to the secondary combustion technology. A furnace table is fixed at the upper end of a furnace body, the lower end of the furnace body is fixed on a furnace base, an inclined outer feeding trough is arranged on one side of the furnace body, a smoke uptake is arranged on the other side of the furnace body, a movable cylindrical sandy soil furnace core is arranged in the furnace body, an inner feeding trough is arranged at the side of the upper half of the furnace core and corresponds to the outer feeding trough outside the furnace body, an air inlet pipe is arranged between the inner circle and the excircle of the furnace core, second inlet air formed by the rise of hot air enters a combustion-supporting hole on a gasifying cylinder to support combustion for the furnace, a furnace bridge, an air door and a fire adjusting plate are arranged at the lower end port of the inner circle of the furnace core, the fire can be controlled through adjusting the opening degree of the fire adjusting plate, and the gasifying cylinder and an air concentrating cover are arranged at the upper end port of the furnace core. The new-style air returning furnace is simple in structure, convenient in material feeding, easy to manufacture and low in cost and has both air returning effect and secondary combustion effect, thereby being a practical furnace for civil use.

The invention provides a vertical air conditioner indoor unit. The vertical air conditioner indoor unit comprises a shell, an air duct, a flow guide part and an air inducing channel; the shell is provided with an air supply opening, a first air inlet and a second air inlet; the inner wall, close to an air outlet, of the air duct is in a gradually-shrinking shape with a flow cross section graduallybecoming smaller in the airflow direction; the flow guide part is arranged in the air duct, an annular air outlet gap is defined by the flow guide part and a gradually-reduced part of the air duct, and the flow guide part is used for guiding airflow to the annular air outlet gap so that the airflow can be gradually gathered towards the center of the airflow under the guidance of the inner wall ofthe air duct and flow out of the air outlet and the air supply opening; and the air inducing channel is formed between the shell and the air duct and is provided with an inlet end communicated with the second air inlet and an outlet end communicated with the air supply opening, and indoor air enters the shell through the second air inlet and is guided to the air supply opening through the air inducing channel. The vertical air conditioner indoor unit is stronger in wind power and farther in air supply distance.

The invention provides a wall-mounted air conditioner indoor unit which comprises a casing and a flow guide piece; a first air supply outlet and an air duct connected with the first air supply outletare defined in the casing, and the inner wall, close to the first air supply outlet, of the air duct is gradually reduced such that the flow cross section of the air duct is gradually reduced in the airflow direction; the flow guide piece is arranged in the air duct, and an air outlet gap is defined between the flow guide piece and the inner wall of the air duct so that the air supply airflow blown to the first air supply outlet is guided to the inner wall of the air duct, and the air supply airflow gradually flows out of the first air supply outlet towards the airflow center in a gathered mode under the guiding effect of the gradually-reduced part of the inner wall of the air duct; the flow guide piece is of a hollow structure, and spray holes are formed in the side, facing the first airsupply outlet, of the flow guide piece, and the flow guide piece is configured to produce water mist; and in the flowing process of the supply airflow, a negative pressure environment is formed at thespray holes, so that water mist is mixed into the supply airflow and blown out of the first air supply outlet together. The wall-mounted air conditioner indoor unit has better effects of long-distance air supply and strong air supply.

A lens assembly is provided and includes: a plurality of lenses including a first lens located nearest to an object side of the lens assembly and a second lens located adjacent to the first lens; and a lens frame having a hollow part which includes an opening on each of an object side and an image forming side of the lens assembly and into which the plurality of lenses are inserted with their optical axes aligned. Liquid is sealed in a part between the first lens and the second lens.

The invention provides a wall-mounted air-conditioner indoor unit, which comprises a housing and a flow guide element, wherein a first air supply opening and an air duct connected with the first air supply opening are defined in the housing; the inner wall, close to the first air supply opening, of the air duct is convergent to gradually diminish a flow passing section of the air duct in an airflow direction; the flow guide element is arranged in the air duct, and further, air outlet gaps are defined between the flow guide element and the inner wall of the air duct to guide an airflow blown tothe first air supply opening to the inner wall of the air duct, so that the airflow gradually flows, in an aggregation manner, out of the first air supply opening towards the center of the airflow under the guidance of convergent parts of the inner wall of the air duct; and further, the flow guide element is configured to be movable relative to the air duct, so that the air outlet gaps are adjustable. The wall-mounted air-conditioner indoor unit provided in the invention has better long-distance air supply and strong air supply effects.

The invention discloses an industrial water cooling device which mainly comprises a water tank 1, a self-sucking pipeline pump 13, a water discharging station 10, a water temperature and water pressure meter 11, a water return station 9, a heat radiator 5 and a blower 8, wherein a water inlet of the self-sucking pipeline pump 13 is connected with the water tank 1 through a water discharging hose 14; a water outlet of a water pump is connected with the water discharging station 10 through a connecting pipe 12; and the water discharging station is used for providing cooling water with enough pressure and proper temperature to a plurality of equipment. After the cooling water flows through the equipment to take away heat, the water temperature is increased, hot water is gathered through the water return station 9 and is introduced into a heat radiator 5 through a connecting hose 7; the hot water flows through heat radiating fin tubes which are distributed in a S-shaped manner in the heat radiator and is assisted by the blower 8 to dissipate and cool; and the cold water obtained by cooling flows out of a water outlet of the heat radiator 5 and flows back to the water tank 1 through a water return hose 2 to finish one circulation. The industrial water cooling device does not need a refrigerant circulating system for cooling circulating water in the prior part and has the characteristics of low power consumption, high capacity, easiness in operation, simplicity, high efficiency, safety, reliability and the like.

The invention discloses a nut cracker which comprises a rack. The rack is provided with a vertically-through material feeding barrel, a conical cracking body is arranged under the material feeding barrel and connected to the rack through a shaft, a conical outer barrel is arranged outside the cracking body, a cavity is formed between the outer barrel and the cracking body, the surface of the cracking body is provided with cracking edges, and the rack is provided with a power device for driving the shaft and the cracking body to rotate. According to the nut cracker, multiple times of collision of nuts is achieved, the shell cracking effect is better, it is guaranteed that nuts and nutshells are completely separated, centrifugal collision is not utilized, and therefore the power consumption is reduced.

The invention provides a vertical air conditioner indoor unit which comprises a shell, an air flue and a flow guiding piece. The inner wall, near an air outlet, of the air flue is in a tapered shape with the flow cross section being decreased gradually along an airflow direction; the flow guiding piece is arranged in the air flue; an annular air outlet gap is defined by the flow guiding piece andthe tapered part of the air flue; the flow guiding piece is used for guiding air flows to the annular air outlet gap, so that the air flows are guided by the inner wall of the air flue so as to be gradually gathered towards an airflow center direction and sequentially flow out of the air outlet and the air supply outlet; the flow guiding piece is formed by rotating a flow guiding line for a circlearound a horizontal central axis; and the flow guiding line comprises a first convex arc-shaped segment, a second concave arc-shaped segment, a third convex arc-shaped segment, a fourth convex arc-shaped segment and a fifth convex arc-shaped segment which are smoothly connected in sequence. The vertical air conditioner indoor unit provided by the invention has stronger wind force and longer air supply distance.

The invention discloses a rice grain conveying mechanism, a rice grain conveying method and an electric rice cooker. The rice grain conveying mechanism includes an air pressure generator, a dry cleaning assembly, and a dustbin; the air pressure generator has an air outlet and an air inlet; the dry cleaning assembly includes a dry cleaning cavity, a storage cavity, and an extruder; the dustbin has an air inlet and an air outlet; The dry-cleaning cavity is separated from the storage cavity by a movable baffle, and the movable baffle connects the dry-cleaning cavity and the storage cavity when the extruder squeezes the rice grains; The air outlet and the air outlet, the air inlet and the air outlet of the air pressure generator, and the material storage cavity of the dry cleaning component are in communication with the inner pot of the electric rice cooker. The invention can solve the technical problem of how to send rice grains into the inner pot of the electric rice cooker by blowing and simultaneously dry-clean the rice grains.

The invention relates to a wind long-range spraying truck, the front of goods van of which is equipped with pesticide barrel, the back is equipped with triplex plunger pump and ejector, inside the ejector is equipped with adjustable blow head, and round of the outside is equipped with circular multi-blow head, the pressure relief pipe orifice of triplex plunger pump is connected to pesticide barrel, the pipe is connected with filter in pesticide barrel, and exhibition pipe is connected with adjustable blow head and circular multi-blow head, the said power is connected with generator through conveyor-belt, generator is connected with power switch in electricity-controlled screen, axial fan back of ejector is connected with axial fan button on the electricity-controlled screen, triplex plunger pump is connected with motor through conveyor-belt, and motor is connected with plunger pump button on electricity-controlled screen. The invention is characterized by the low wind decrease, large wind pressure, refined frog particle, and wide range of atomization.

The invention relates to a high-dehumidification electric generator set box body. An inner cavity of the box body is divided into a gas inlet cavity and an electric generator set cavity through a partition plate, a refrigeration device, a water receiving and draining device and a draught fan are arranged in the gas inlet cavity, and an air duct and a mesh-shaped partition plate used for installation of an electric generator set are arranged in the electric generator set cavity. The high-dehumidification electric generator set box body has the excellent dehumidification performance, the excellent heat dissipation performance and the excellent heat insulation performance at the same time, can well meet the requirement for temperature and humidity control of a device and the requirement of personnel for the operating environment, ensures that the electric generator set and other electrical equipment in the high-dehumidification electric generator set box body safely and stably run, prolongs the service life of the device, is particularly suitable for the working environment with the high temperature and the high humidity, and has quite wide market application prospects.

The invention relates to a high-heat-dissipation generating set box body. The inner cavity of the box body is separated into an air inlet chamber and a generating set chamber by a baffle; a refrigerating device, an air pipe and a blower are arranged in the air inlet chamber; the refrigerating device comprises a shell and a semiconductor refrigerating sheet, a cooling water pipe and a control mainboard which are arranged in the shell; an air duct and a netted baffle for installing a generating set are arranged in the generating set chamber. The high-heat-dissipation generating set box body disclosed by the invention has excellent dehumidification, heat dissipation and heat insulation properties, can well meet the temperature and humidity control requirements of equipment and the operating environment requirements of personnel, guarantees the safe and stable operation of the generating set and other electrical equipment in the high-heat-dissipation generating set box body, prolongs service life of the equipment, is particularly suitable for the working environment with high temperature and high humidity and has a very wide market application prospect.

The invention discloses a testing device and a testing method for fire propagation characteristic for a building exterior wall thermal insulation board. A deformable body is stretched or shortened torealize diverse shapes of a simulated single building, and diverse building wall structures can be rapidly and conveniently constructed, to gather and form a building community; the simulated single building can be rapidly fixed with a bottom platform by location fit of a location bottom seat and a location hole, to realize convenient and fast disassembly and assembly, while accurate and stable location function can be realized for the simulated single building with various sizes and orientations, without generating position shifting under a larger wind speed environment; and the simulated building group modules can also be freely increased and decreased and spliced according to requirements, to construct a test scene of an expected scale, with characteristics of flexibility, convenience,and fastness. The device can be used for large-scale fire propagation performance testing of various complex building communities, and is expected to provide a basis for the improvement of such standards.

The invention provides a vertical air conditioner indoor unit which comprises a shell, an air duct and a flow guide part. A first air supply outlet and a second air supply outlet are formed in the front side of the shell. the air duct is arranged in the shell and provided with an air inlet, a first air outlet and a second air outlet, the first air outlet faces the first air supply outlet, the second air outlet faces the second air supply outlet, and the air duct is used for guiding airflow in the shell to the first air supply outlet and the second air supply outlet; the inner wall, close to the first air outlet, of the air duct is in a gradually-shrinking shape with the flow cross section gradually becoming smaller in the airflow direction; and the flow guide part is arranged in the air duct, an annular air outlet gap is defined by the flow guide part and a gradually-reduced part of the air duct, and the flow guide part is used for guiding airflow to the annular air outlet gap so thatthe airflow can be gradually gathered towards the center of the airflow under the guide of the inner wall of the air duct and sequentially flow out of the first air outlet and the first air supply outlet. The vertical air conditioner indoor unit is stronger in wind power and farther in air supply distance.

The invention relates to a windmill, comprising a wind wheel which is formed from a horizontal rotating shaft (1) and vanes (3). The vane is swingly borne on a vane shaft (2) which is vertically fixed on the horizontal rotating shaft. The vane shaft leans to a side of the vane. A vane swinging limit apparatus is arranged on the horizontal rotating shaft or on the vane shaft. The vane shaft is perforated in the vane shaft hole. A radial convex (5) is arranged on the vane shaft. A radial groove (6) or a limit block (4) is arranged on the corresponding vane shaft hole. The limit block (4) is fixed on the horizontal rotating shaft or on the vane shaft and protrudes into both sides of the vane. The vane and the vane shaft are slidingly matched and connected with each other through an extension spring (10). The vane can automatically swing to proper obliquity according to wind from the front or from the back, so that the windmill bears homodromous torque whether the wind blows to the vane from the front or from the back. In the wind power generation device comprising the windmill, a plurality of windmills are arranged the corresponding numbers of horizontal air holes (8) on a vertical wall (7). The vertical wall integrates the wind power, increases the wind power passing the wind tunnel, and improves the power generation capability of the windmill.

The invention relates to a low-power photovoltaic power generation and wind power integrated device comprising a photovoltaic power generation module, a control module, a wind power generation module,a support structure, a storage battery module, a base module and a wireless communication module. The photovoltaic power generation module is fixed on the upper part of the control module; the lowerpart of the control module is fixed at the top of the support structure; the lower portion of the support structure is mounted at the top end of the storage battery module; the wind power generation module is embedded in the upper portion of the support structure; and the storage battery module is installed in the base module. According to the invention, the power generation efficiency of the wind-solar hybrid power generation is improved; and various functions of power generation, small area illumination, and surrounding environment detection and the like are integrated.

The invention relates to a control method of an air conditioning device. The air conditioning device comprises at least one indoor heat exchanger arranged in an indoor unit, a human body temperature perception device used for perceiving human body temperatures and a plurality of sets of independent air guide mechanisms arranged in an air supply outlet of the indoor unit. A throttling gear is in serial connection with a refrigerant flow path where each indoor heat exchanger is located. The control method comprises the steps that an indoor environment where the indoor unit is located is partitioned into a plurality of independent areas, and then the temperature of each human body in each area is obtained through the human body temperature perception device; the average human body temperature in each area is calculated; and when the average human body temperature in any area is beyond a preset human body temperature range, the opening degree of the throttling gear in serial connection with one indoor heat exchanger of the at least one indoor heat exchanger and / or the state of a set of air guide mechanism corresponding to the area are / is regulated, accordingly the air supply temperature and / or the air supply volume of the area are / is regulated, and therefore, differentiated demands of users are met.

The invention belongs to the technical field of food processing equipment and in particular discloses a cassia seed screening device which comprises a case, wherein a motor provided with an upward output shaft is arranged at the lower part of the case; a screening plate, a guide plate, a discharge hole and a screening waste hole are arranged on the case; a transverse rod is arranged in a position,above the screening plate, of the output shaft; a feeding hole is formed in the upper part of the case; the case is a cylindrical case; the case is provided with convex teeth in a circumferential direction below the guide plate; the output shaft is provided with a first gear which is fixedly connected with the output shaft and is arranged in a position below the guide plate; a plurality of secondgears are arranged between the first gear and the case; the second meshes are meshed with both the first gear and the convex teeth; first vertical shafts which are fixedly connected with the second gears are arranged on the second gears; fans which are fixedly connected with the first vertical shafts are arranged on the first vertical shafts. The device is mainly used for screening cassia seeds,and the problem that product waste can be caused since fruit peel is not well crushed can be solved.

The invention discloses a counter rotating fan. The counter rotating fan comprises two impellers and a motor, the motor is used for driving the two impellers to rotate, the two impellers are arrangedat interval in the axial direction and divided into the first-stage impeller and the second-stage impeller, during running of the counter rotating fan, the air flow is blown from the first-stage impeller to the second-stage impeller, a plurality of rings of vanes are arranged on at least one of the impellers and distributed in the radial direction of the corresponding impeller, the multi vanes ofeach ring are arranged at intervals by surrounding the hub of the corresponding impeller, and a partition ring is connected between the two adjacent rings of vanes. According to the counter rotating fan, the impeller with the multi-ring vanes is adopted, the air output capacity in the middle of the counter rotating fan can be improved, the speed distribution near the center of the outlet wind field of the counter rotating fan is improved, and the uniformity of the outlet wind field is obviously improved.

The invention relates to a window opening type wind wheel of a wind driven generator. The wind wheel is mounted on a generator spindle through a spindle and comprises a spindle sleeve, hubs, blades, blade shafts and stopping rods, wherein hubs are fixedly mounted on the outer walls of the two ends of the spindle sleeve in a symmetrical way; the hubs comprise a plurality of coaxial supporting rods which are uniformly arranged in a radial direction; the supporting rods on the two sides are in one-one correspondence with each other; a the blade shaft is axially mounted between each two corresponding supporting rods on the two sides; blades are hinged on the blade shafts; stopping rods for limiting swinging angles of the blades are axially mounted between the corresponding supporting rods on the internal sides of the blade shafts; and windward break angles are made in the blade mounting positions of the supporting rods. The window opening type wind wheel has the advantages of simple structure, high efficiency, low manufacturing cost, convenience in use, convenience for mounting, strong practicability and wide application range; defects of the traditional fixed blade, such as small wind energy stress surface, comparatively large resisting area and low efficiency, are changed; and an efficient wind wheel technology is provided for the wind power generation industry.