Energy-saving ventilation device for green energy-saving building and use method thereof

Abstract

The application belongs to the field of ventilation devices, and particularly relates to a green energy-saving ventilation device for green energy-saving buildings. The existing ventilation device only plays a role in exhausting air in use, but lacks supplement of new air with good quality, which influences the ventilation effect. The present application provides the following scheme. The green energy-saving ventilation device comprises a fixing sleeve, an exhaust pipe rotatably connected to the top of the fixing sleeve, and an air extraction pipe fixedly connected to the bottom of the fixing sleeve. The application also provides a use method of the green energy-saving ventilation device, which comprises the following steps: S1: fixing the fixing sleeve on the top of the building, and arranging the exhaust pipe and the air extraction pipe outdoors. In the application, the exhaust pipe and the air extraction pipe are used in cooperation, so that air supplement can be carried out while air is exhausted in the building, the ventilation effect is improved, and the exhaust shaft can be driven to rotate by the motor in the state without wind, which does not affect the use of wind power.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of ventilation device, especially to a green energy-saving building energy-saving ventilation device and a using method thereof. BACKGROUND

[0002] As the name implies, the building that can achieve the purpose of energy saving and emission reduction saves resources, protects the environment, reduces pollution and provides people with healthy, suitable and efficient use space in the whole life cycle. The quality of air in the building reflects the degree of meeting people's environmental requirements, and factors that often affect air quality include air flow and air cleanliness.

[0003] In the control of air, ventilation devices need to be used, but the existing ventilation devices usually only play the role of exhaust in use, but lack the supplement of new air with good quality, which affects the effect of ventilation. In view of the above problems, the present application file provides a green energy-saving building energy-saving ventilation device and a using method thereof. SUMMARY

[0004] The present application provides a green energy-saving building energy-saving ventilation device and a using method thereof, which solves the problem that the existing ventilation device in the prior art usually only plays the role of exhaust in use, but lacks the supplement of new air with good quality, which affects the effect of ventilation.

[0005] The present application provides the following technical scheme:

[0006] A green energy-saving building energy-saving ventilation device, comprising:

[0007] A fixed sleeve, the top of the fixed sleeve is rotatably connected with an exhaust pipe, the bottom of the fixed sleeve is fixedly connected with a suction pipe, the circumferential outer wall of the fixed sleeve is fixedly connected with an intermediate sleeve, the top of the intermediate sleeve is rotatably connected with a top cover, the top cover is fixedly connected with the exhaust pipe, the top of the top cover is fixedly connected with a communication suction pipe, the suction pipe is fixed with the exhaust pipe, and the bottom of the intermediate sleeve is fixedly connected with a communication air supplement pipe;

[0008] The exhaust pipe is rotatably connected with a through exhaust shaft on one side, the circumferential surface of the exhaust shaft is fixedly connected with exhaust fan blades, the suction pipe is rotatably connected with an air inlet shaft on one side, the circumferential surface of the air inlet shaft is fixedly connected with air inlet fan blades, the circumferential surfaces of the air inlet shaft and the exhaust shaft are fixedly connected with second transmission wheels, the two second transmission wheels are drivingly connected, and the air directions of the exhaust pipe and the suction pipe are opposite.

[0009] A driving assembly is arranged on one side of the exhaust pipe to drive the exhaust shaft.

[0010] Further, the driving assembly comprises a mounting plate fixedly connected to one side of the exhaust pipe, one side of the mounting plate is rotatably connected with two first driving shafts, the circumference of the first driving shaft is fixedly connected with a driving fan blade and a first transmission wheel, the circumference of the exhaust shaft is fixedly connected with a double-track pulley, the double-track pulley is in transmission connection with the two first transmission wheels, and the top of one end of the exhaust pipe is fixedly connected with a wind deflector.

[0011] Further, the circumference of the inner wall of the exhaust pipe is fixedly connected with a protective net.

[0012] Further, the circumference of the exhaust shaft is fixedly connected with a first brush plate for cleaning the protective net.

[0013] Further, the circumference of the inner wall of the exhaust pipe is fixedly connected with a protective net.

[0014] Further, the circumference of the exhaust shaft is fixedly connected with a first brush plate for cleaning the protective net.

[0015] Further, the bottom of the air supplementing pipe is rotatably connected with a rotating pipe, one side of the rotating pipe is fixedly connected with an oscillating plate, the surface of the oscillating plate is provided with a penetrating driving groove, the circumference of the inner wall of the air exhaust pipe is fixedly connected with a mounting bracket, the surface of the mounting bracket is rotatably connected with a penetrating intermediate shaft, the bottom of the intermediate shaft is fixedly connected with a driving disc, the bottom of the driving disc is fixedly connected with an eccentric second driving shaft, the second driving shaft is in sliding connection with the driving groove, the top of the intermediate shaft and the circumference of the exhaust shaft are fixedly connected with bevel gears, and the two bevel gears are in meshing.

[0016] Further, one side of the exhaust pipe is fixedly connected with a motor, one end of the output shaft of the motor is fixedly connected with a ratchet wheel, one end of the exhaust shaft is fixedly connected with a mounting sleeve, the circumference of the inner wall of the mounting sleeve is fixedly connected with a positioning ring, one side of the positioning ring is fixedly connected with a plurality of positioning shafts, the circumference of the positioning shaft is rotatably connected with a pawl, and the pawl and the positioning shaft are fixedly connected with a torsion spring.

[0017] The application further provides a use method of the energy-saving ventilation device for green energy-saving buildings.

[0018] S1: fixing the fixing sleeve on the top of the building, arranging the exhaust pipe and the air exhaust pipe outdoors, arranging the air exhaust pipe and the rotating pipe indoors, rotating the exhaust pipe through the wind deflector, keeping the driving fan blade facing the natural wind, rotating the air exhaust pipe when the exhaust pipe rotates, and rotating the top cover above the middle sleeve;

[0019] S2: wind drives the first drive shaft to rotate through driving the fan blades, the first drive shaft drives the exhaust shaft to rotate through the first transmission wheel and double track pulley, the exhaust shaft drives the exhaust fan to rotate, thereby the air in the building wall is extracted, when the exhaust shaft rotates, the intake fan is driven to rotate through the second transmission wheel, thereby the natural wind is blown into the building;

[0020] S3: when the exhaust shaft rotates, the intermediate shaft is driven to rotate through the bevel gear, the intermediate shaft drives the driving disc to rotate, the driving disc drives the second drive shaft to rotate, the second drive shaft reciprocally slides in the driving groove, thereby the rotating pipe is driven to swing through the swing plate, the natural wind is blown to different positions;

[0021] S4: in the no wind state, the motor is started, the motor drives the ratchet to rotate, the ratchet drives the mounting sleeve to rotate through the pawl, thereby the exhaust shaft is driven to rotate, while in the wind state, the pawl slides with the ratchet in the state that the motor stops, thereby the motor shaft is prevented from being driven to rotate.

[0022] It should be understood that the foregoing general description and the following detailed description are only exemplary, and cannot limit the present application.

[0023] In the present application, the cooperation of the exhaust pipe and the air extraction pipe enables the building to perform exhaust while supplementing air, improving the ventilation effect.

[0024] In the present application, the installation of the motor on one side of the exhaust pipe enables the exhaust shaft to be driven to rotate through the starting motor in the no wind state, which does not affect the wind power driving, improving the flexibility of use.

[0025] In the present application, the rotating pipe can rotate, which enables the intermediate shaft to be driven to rotate through the bevel gear when the exhaust shaft rotates, thereby driving the swing plate to swing, and the rotating pipe is driven to swing through the swing plate, sending fresh air to different places.

[0026] In the present application, the cooperation of the protective net and the filter screen enables the exhaust pipe and the air extraction pipe to be blocked, preventing foreign matters from entering the building, and the protective net and the filter screen can be automatically cleaned, preventing the ventilation effect from being affected.

[0027] In the present application, the cooperation of the exhaust pipe and the air extraction pipe enables the building to perform exhaust while supplementing air, improving the ventilation effect, and the exhaust shaft can be driven to rotate through the starting motor in the no wind state, which does not affect the wind power driving, improving the flexibility of use, and the rotating pipe is driven to swing through the swing plate, sending fresh air to different places. BRIEF DESCRIPTION OF DRAWINGS

[0028] Figure 1A first perspective three-dimensional structure schematic view of the energy-saving ventilation device for green energy-saving buildings provided by the embodiment of the present application;

[0029] Figure 2 A second perspective three-dimensional structure schematic view of the energy-saving ventilation device for green energy-saving buildings provided by the embodiment of the present application;

[0030] Figure 3 A sectional structure schematic view of the energy-saving ventilation device for green energy-saving buildings provided by the embodiment of the present application;

[0031] Figure 4 A motor installation structure schematic view of the energy-saving ventilation device for green energy-saving buildings provided by the embodiment of the present application;

[0032] Figure 5 A first perspective three-dimensional structure schematic view of the energy-saving ventilation device for green energy-saving buildings provided by the embodiment of the present application; Figure 3 A first perspective three-dimensional structure schematic view of the energy-saving ventilation device for green energy-saving buildings provided by the embodiment of the present application;

[0033] Figure 6 A first perspective three-dimensional structure schematic view of the energy-saving ventilation device for green energy-saving buildings provided by the embodiment of the present application; Figure 3 A first perspective three-dimensional structure schematic view of the energy-saving ventilation device for green energy-saving buildings provided by the embodiment of the present application.

[0034] Reference signs:

[0035] 1, fixed sleeve; 2, suction pipe; 3, exhaust pipe; 4, intermediate sleeve; 5, top cover; 6, air suction pipe; 7, air supplement pipe; 8, rotating pipe; 9, air guide plate; 10, mounting plate; 11, first driving shaft; 12, driving fan blade; 13, exhaust shaft; 14, double-track pulley; 15, exhaust fan blade; 16, protective net; 17, first brush plate; 18, air inlet shaft; 19, mounting frame; 20, intermediate shaft; 21, bevel gear; 22, first transmission wheel; 23, swing plate; 24, driving groove; 25, driving disc; 26, second driving shaft; 27, air inlet fan blade; 28, second transmission wheel; 29, second brush plate; 30, filter screen; 31, mounting sleeve; 32, positioning ring; 33, positioning shaft; 34, pawl; 35, torsional spring; 36, ratchet wheel; 37, motor. DETAILED DESCRIPTION

[0036] The embodiments of the present application will be described below in conjunction with the accompanying drawings.

[0037] In the description of the embodiments of the present application, it should be noted that unless specifically defined and limited otherwise, the terms "connect", "mount", should be interpreted broadly, for example, "connect" can be detachable connection, or can be non-detachable connection, can be direct connection, or can be indirect connection through intermediate medium. In addition, "communication" can be direct communication, or can be indirect communication through intermediate medium. Among them, "fixed" means connected to each other and the relative position relationship after connection does not change. The orientation language mentioned in the embodiments of the present application, such as "inner", "outer", "top", "bottom", etc., is only the direction of the drawing, therefore, the orientation language used is for better, more clearly illustrating and understanding the embodiments of the present application, and is not indicative or implied that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, therefore, it cannot be understood as a limitation on the embodiments of the present application.

[0038] In the embodiments of the present application, the terms "first", "second" are only for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the technical features indicated. Therefore, the features limited by "first", "second" can explicitly or implicitly include one or more of the features.

[0039] In the embodiments of the present application, "and / or" is only a description of the association relationship between the associated objects, which means that there can be three kinds of relationships, for example, A and / or B, which can represent the three cases of A alone, A and B together, and B alone. In addition, the character " / " in this paper generally represents that the front and rear associated objects are a "or" relationship.

[0040] In this specification, the reference "one embodiment" or "some embodiments" and the like means that a particular feature, structure or characteristic described in connection with the embodiment is included in one or more embodiments of the present application. Therefore, the statements "in one embodiment", "in some embodiments", "in other embodiments", "in additional embodiments" and the like appearing in various places in the specification are not necessarily all referring to the same embodiment, but mean "one or more but not all embodiments", unless otherwise specifically emphasized. The terms "include", "contain", "have" and their variants mean "including but not limited to", unless otherwise specifically emphasized.

[0041] Embodiment 1

[0042] Reference Figures 1-6The utility model provides a kind of energy-saving ventilation device for green energy-saving building, comprising: fixed sleeve 1, the top of fixed sleeve 1 is rotatably connected with exhaust pipe 3, the bottom of fixed sleeve 1 is fixedly connected with suction pipe 2, the circumferential outer wall of fixed sleeve 1 is fixedly connected with intermediate sleeve 4, the top of intermediate sleeve 4 is rotatably connected with top cover 5, top cover 5 is fixedly connected with exhaust pipe 3, the top of top cover 5 is fixedly connected with the communication suction duct 6, suction duct 6 is fixed with exhaust pipe 3, the bottom of intermediate sleeve 4 is fixedly connected with the communication air supplement pipe 7, the cooperation of exhaust pipe 3 and suction duct 6 enables the building to carry out exhaust at the same time, and air supplement can also be carried out, improve the effect of ventilation and air exchange;

[0043] Exhaust pipe 3 is rotatably connected with the penetrating exhaust shaft 13 on one side, and the circumferential fixed connection of exhaust shaft 13 has exhaust fan blade 15, suction duct 6 is rotatably connected with air inlet shaft 18 on one side, and the circumferential fixed connection of air inlet shaft 18 has air inlet fan blade 27, the circumferences of air inlet shaft 18 and exhaust shaft 13 are fixedly connected with second transmission wheel 28, two second transmission wheels 28 are transmissionally connected, the wind direction of exhaust pipe 3 and suction duct 6 is opposite, when exhaust pipe 3 rotates, it drives suction duct 6 to rotate, and simultaneously drives top cover 5 to rotate above intermediate sleeve 4;

[0044] Drive assembly, drive assembly is arranged on one side of exhaust pipe 3 and drives exhaust shaft 13.

[0045] Embodiment 2

[0046] Refer to Figures 1-6 A kind of energy-saving ventilation device for green energy-saving building, comprising:

[0047] Fixed sleeve 1, the top of fixed sleeve 1 is rotatably connected with exhaust pipe 3, the bottom of fixed sleeve 1 is fixedly connected with suction pipe 2, the circumferential outer wall of fixed sleeve 1 is fixedly connected with intermediate sleeve 4, the top of intermediate sleeve 4 is rotatably connected with top cover 5, top cover 5 is fixedly connected with exhaust pipe 3, the top of top cover 5 is fixedly connected with the communication suction duct 6, suction duct 6 is fixed with exhaust pipe 3, the bottom of intermediate sleeve 4 is fixedly connected with the communication air supplement pipe 7, the cooperation of exhaust pipe 3 and suction duct 6 enables the building to carry out exhaust at the same time, and air supplement can also be carried out, improve the effect of ventilation and air exchange;

[0048] Exhaust pipe 3 is rotatably connected with the penetrating exhaust shaft 13 on one side, and the circumferential fixed connection of exhaust shaft 13 has exhaust fan blade 15, suction duct 6 is rotatably connected with air inlet shaft 18 on one side, and the circumferential fixed connection of air inlet shaft 18 has air inlet fan blade 27, the circumferences of air inlet shaft 18 and exhaust shaft 13 are fixedly connected with second transmission wheel 28, two second transmission wheels 28 are transmissionally connected, the wind direction of exhaust pipe 3 and suction duct 6 is opposite, when exhaust pipe 3 rotates, it drives suction duct 6 to rotate, and simultaneously drives top cover 5 to rotate above intermediate sleeve 4;

[0049] A driving assembly is arranged on one side of the exhaust pipe 3 to drive the exhaust shaft 13.

[0050] With reference to Figure 2 and Figure 3 , the driving assembly comprises a mounting plate 10 fixedly connected to one side of the exhaust pipe 3, one side of the mounting plate 10 being rotatably connected to two first driving shafts 11, the circumferences of the first driving shafts 11 being fixedly connected to driving vanes 12 and first transmission wheels 22, the circumference of the exhaust shaft 13 being fixedly connected to a double-track pulley 14, the double-track pulley 14 being in transmission connection with the two first transmission wheels 22, the top of one end of the exhaust pipe 3 being fixedly connected to a wind deflector 9, the wind force driving the first driving shafts 11 to rotate through the driving vanes 12, the first driving shafts 11 driving the exhaust shaft 13 to rotate through the first transmission wheels 22 and the double-track pulley 14, the exhaust shaft 13 driving the exhaust vanes 15 to rotate, thereby extracting the air inside the building, the exhaust shaft 13 rotating to drive the air inlet vanes 27 to rotate through the second transmission wheels 28, thereby blowing the natural wind into the building.

[0051] With reference to Figure 3 , the circumference of the exhaust pipe 3 is fixedly connected to a protective net 16, the circumference of the exhaust shaft 13 is fixedly connected to a first brush plate 17 for cleaning the protective net 16, the protective net 16 preventing foreign matters from entering the exhaust pipe 3, and the first brush plate 17 cleaning the dust inside the protective net 16.

[0052] With reference to Figure 3 and Figure 4 , the circumference of the exhaust pipe 6 is fixedly connected to a filter screen 30, the circumference of the air inlet shaft 18 is fixedly connected to a second brush plate 29 for cleaning the filter screen 30, the filter screen 30 filtering the natural wind, and the second brush plate 29 cleaning the filter screen 30.

[0053] With reference to Figure 3 and Figure 6 , the bottom of the air supplement pipe 7 is rotatably connected to a rotating pipe 8, one side of the rotating pipe 8 being fixedly connected to an oscillating plate 23, the surface of the oscillating plate 23 being provided with a penetrating driving groove 24, the circumference of the air extraction pipe 2 is fixedly connected to a mounting bracket 19, the surface of the mounting bracket 19 being rotatably connected to a penetrating intermediate shaft 20, the bottom of the intermediate shaft 20 being fixedly connected to a driving disc 25, the bottom of the driving disc 25 being fixedly connected to an eccentric second driving shaft 26, the second driving shaft 26 being in sliding connection with the driving groove 24, the top of the intermediate shaft 20 and the circumference of the exhaust shaft 13 being fixedly connected to two bevel gears 21, the two bevel gears 21 being in meshing, the exhaust shaft 13 rotating to drive the intermediate shaft 20 to rotate through the bevel gears 21, the intermediate shaft 20 driving the driving disc 25 to rotate, the driving disc 25 driving the second driving shaft 26 to rotate, the second driving shaft 26 reciprocally sliding in the driving groove 24, thereby driving the rotating pipe 8 to oscillate through the oscillating plate 23, and blowing the natural wind to different positions.

[0054] Referring to Figure 4 One side of the exhaust pipe 3 is fixedly connected with a motor 37, one end of an output shaft of the motor 37 is fixedly connected with a ratchet wheel 36, one end of the exhaust shaft 13 is fixedly connected with a mounting sleeve 31, the circumferential inner wall of the mounting sleeve 31 is fixedly connected with a positioning ring 32, one side of the positioning ring 32 is fixedly connected with a plurality of positioning shafts 33, the circumferences of the positioning shafts 33 are all rotationally connected with pawls 34, the pawls 34 and the positioning shafts 33 are all fixedly connected with torsion springs 35, and the pawls 34 are all engaged with the ratchet wheel 36; in the no-wind state, the motor 37 is started, the motor 37 drives the ratchet wheel 36 to rotate, the ratchet wheel 36 drives the mounting sleeve 31 to rotate through the pawls 34, and then drives the exhaust shaft 13 to rotate; and in the wind state, the pawls 34 slide with the ratchet wheel 36 in the state that the motor 37 is stopped, and then the motor 37 shaft is prevented from being driven to rotate.

[0055] However, as known by those skilled in the art, the working principle and wiring method of the motor 37 are common, which all belong to conventional means or common knowledge, and will not be described here again, and those skilled in the art can make any selection according to needs or convenience.

[0056] The application further provides a use method of the energy-saving ventilation device for green energy-saving buildings.

[0057] S1: the fixing sleeve 1 is fixed on the top of the building, the exhaust pipe 3 and the exhaust pipe 6 are arranged outdoors, the air suction pipe 2 and the rotating pipe 8 are arranged indoors, the exhaust pipe 3 is driven to rotate through the air deflector 9, the driving fan blade 12 is kept facing the natural wind, and when the exhaust pipe 3 rotates, the exhaust pipe 6 is driven to rotate, and the top cover 5 is driven to rotate above the middle sleeve 4;

[0058] S2: the wind drives the first driving shaft 11 to rotate through the driving fan blade 12, the first driving shaft 11 drives the exhaust shaft 13 to rotate through the first transmission wheel 22 and the double-track pulley 14, the exhaust shaft 13 drives the exhaust fan blade 15 to rotate, and then the air on the inner wall of the building is sucked out; when the exhaust shaft 13 rotates, the air suction fan blade 27 is driven to rotate through the second transmission wheel 28, and then the natural wind is blown into the building;

[0059] S3: when the exhaust shaft 13 rotates, the middle shaft 20 is driven to rotate through the bevel gear 21, the driving disc 25 is driven to rotate through the middle shaft 20, the second driving shaft 26 is driven to rotate through the driving disc 25, the second driving shaft 26 reciprocally slides in the driving groove 24, and then the rotating pipe 8 is driven to swing through the swing plate 23, and the natural wind is blown to different positions;

[0060] S4: In the state without wind, the motor 37 is started, the motor 37 drives the ratchet wheel 36 to rotate, the ratchet wheel 36 drives the mounting sleeve 31 to rotate through the pawl 34, and then drives the exhaust shaft 13 to rotate, and in the state with wind, the pawl 34 slides with the ratchet wheel 36, and then avoids driving the motor 37 shaft to rotate.

[0061] The above is only a specific embodiment of the present application, but the protection scope of the present application is not limited to this. Any person skilled in the art can easily think of changes or replacements within the technical range disclosed by the present application, which should be covered within the protection scope of the present application. In the case of no conflict, the embodiments of the present application and the features in the embodiments can be combined with each other. Therefore, the protection scope of the present application should be subject to the protection scope of the claims.

Claims

1. An energy saving ventilation device for green energy saving buildings, characterized in that, The utility model relates to a kind of exhaust fan, including: Fixed sleeve, the top of the fixed sleeve is rotatably connected with exhaust pipe, the bottom of the fixed sleeve is fixedly connected with suction pipe, the circumferential outer wall of the fixed sleeve is fixedly connected with intermediate sleeve, the top of intermediate sleeve is rotatably connected with top cover, top cover is fixedly connected with exhaust pipe, the top of the top cover is fixedly connected with the communication of suction duct, suction duct is fixed with exhaust pipe, the bottom of the intermediate sleeve is fixedly connected with the communication of air supplement pipe; The side of the exhaust pipe is rotatably connected with the through exhaust fan blade, the circumferential of the exhaust fan blade is fixedly connected with exhaust fan blade, the side of the suction duct is rotatably connected with air inlet shaft, the circumferential of the air inlet shaft is fixedly connected with air inlet fan blade, the circumferential of the air inlet shaft and the exhaust fan blade is fixedly connected with second transmission wheel, and the two second transmission wheels are drivingly connected, and the wind direction of the exhaust pipe and suction duct is opposite; Driving assembly, driving assembly is arranged on the side of exhaust pipe and drives exhaust fan blade, the bottom of air supplement pipe is rotatably connected with rotating pipe, the side of rotating pipe is fixedly connected with swing plate, the surface of swing plate is provided with the through driving slot, the circumferential inner wall of suction pipe is fixedly connected with mounting bracket, the surface of mounting bracket is rotatably connected with the through intermediate shaft, the bottom of intermediate shaft is fixedly connected with driving disc, the bottom of driving disc is fixedly connected with eccentrically arranged second driving shaft, second driving shaft is slidingly connected with driving slot, the circumferential of the top of intermediate shaft and exhaust fan blade is fixedly connected with bevel gear, and the two bevel gears are engaged, the side of exhaust pipe is fixedly connected with motor, one end of motor output shaft is fixedly connected with ratchet wheel, one end of exhaust fan blade is fixedly connected with mounting sleeve, the circumferential inner wall of mounting sleeve is fixedly connected with positioning ring, the side of positioning ring is fixedly connected with a plurality of positioning shafts, the circumferential of positioning shaft is rotatably connected with pawl, and the pawl and positioning shaft are fixedly connected with torsion spring, and the pawl is engaged with ratchet wheel.

2. The energy-saving ventilation device for green energy-saving buildings according to claim 1, characterized in that, The driving assembly includes mounting plate, the mounting plate is fixedly connected on the side of exhaust pipe, the side of the mounting plate is rotatably connected with two first driving shafts, the circumferential of first driving shaft is fixedly connected with driving fan blade and first transmission wheel, the circumferential of the exhaust fan blade is fixedly connected with double-track pulley, the double-track pulley is drivingly connected with the two first transmission wheels, and the top of one end of the exhaust pipe is fixedly connected with air deflector.

3. The energy-saving ventilation device for green energy-saving buildings according to claim 2, characterized in that, The circumferential inner wall of the exhaust pipe is fixedly connected with protective net.

4. The energy-saving ventilation device for green energy-saving buildings according to claim 3, characterized in that, The circumferential of the exhaust fan blade is fixedly connected with first brush plate for cleaning protective net.

5. The energy-saving ventilation device for green energy-saving buildings according to claim 3, characterized in that, The circumferential inner wall of the suction duct is fixedly connected with filter screen.

6. The energy-saving ventilation device for green energy-saving buildings according to claim 5, characterized in that, The circumferential of the air inlet shaft is fixedly connected with second brush plate for cleaning filter screen.

7. The method of using an energy efficient ventilation device for green energy saving buildings as claimed in claim 6 wherein, The utility model relates to a kind of exhaust fan, including following steps: S1: fixed sleeve is fixed on the top of building, exhaust pipe and suction pipe are arranged outdoors, air supplement pipe and rotating pipe are arranged indoors, exhaust pipe is driven to rotate by air deflector, keeps driving fan blade facing natural wind, while exhaust pipe is rotating, drives suction pipe to rotate, simultaneously drives top cover to rotate above intermediate sleeve; S2: wind through the drive fan blade drive first drive shaft rotation, the first drive shaft through the first transmission wheel and double track pulley drive exhaust shaft rotation, exhaust shaft drive exhaust fan rotation, and then the air inside the building wall out, exhaust shaft rotation, through the second transmission wheel drive air inlet fan rotation, and then the natural wind into the building; S3: exhaust shaft in rotation, through the bevel gear drive intermediate shaft rotation, intermediate shaft drive drive plate rotation, drive plate drive second drive shaft rotation, second drive shaft in drive groove reciprocating sliding, and then through the swing plate drive rotating tube swing, blowing natural wind to different positions; S4: no wind state, start motor, motor drive ratchet rotation, ratchet through the pawl drive installation set rotation, and then drive exhaust shaft rotation, and in the wind state, the motor stop state, the pawl and ratchet slip, and then avoid drive motor shaft rotation.

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