CN109578305B - Multifunctional solar indoor ventilation fan - Google Patents

Multifunctional solar indoor ventilation fan Download PDF

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Publication number
CN109578305B
CN109578305B CN201811486902.5A CN201811486902A CN109578305B CN 109578305 B CN109578305 B CN 109578305B CN 201811486902 A CN201811486902 A CN 201811486902A CN 109578305 B CN109578305 B CN 109578305B
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shaft
fixed
rotating
frame
bearing
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CN109578305A (en
Inventor
吴琦隆
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Liaoning Guoyue Energy Engineering Co ltd
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Anhui Yinglong Industrial Design Co ltd
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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D25/00—Pumping installations or systems
    • F04D25/02—Units comprising pumps and their driving means
    • F04D25/08—Units comprising pumps and their driving means the working fluid being air, e.g. for ventilation
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D27/00—Control, e.g. regulation, of pumps, pumping installations or pumping systems specially adapted for elastic fluids
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D27/00—Control, e.g. regulation, of pumps, pumping installations or pumping systems specially adapted for elastic fluids
    • F04D27/002—Control, e.g. regulation, of pumps, pumping installations or pumping systems specially adapted for elastic fluids by varying geometry within the pumps, e.g. by adjusting vanes
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D29/00—Details, component parts, or accessories
    • F04D29/002—Details, component parts, or accessories especially adapted for elastic fluid pumps
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D29/00—Details, component parts, or accessories
    • F04D29/02—Selection of particular materials
    • F04D29/023—Selection of particular materials especially adapted for elastic fluid pumps
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D29/00—Details, component parts, or accessories
    • F04D29/26—Rotors specially for elastic fluids
    • F04D29/32—Rotors specially for elastic fluids for axial flow pumps
    • F04D29/38—Blades
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D29/00—Details, component parts, or accessories
    • F04D29/40—Casings; Connections of working fluid
    • F04D29/52—Casings; Connections of working fluid for axial pumps
    • F04D29/54—Fluid-guiding means, e.g. diffusers
    • F04D29/541—Specially adapted for elastic fluid pumps
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K7/00—Arrangements for handling mechanical energy structurally associated with dynamo-electric machines, e.g. structural association with mechanical driving motors or auxiliary dynamo-electric machines
    • H02K7/14—Structural association with mechanical loads, e.g. with hand-held machine tools or fans
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02S—GENERATION OF ELECTRIC POWER BY CONVERSION OF INFRARED RADIATION, VISIBLE LIGHT OR ULTRAVIOLET LIGHT, e.g. USING PHOTOVOLTAIC [PV] MODULES
    • H02S20/00—Supporting structures for PV modules
    • H02S20/30—Supporting structures being movable or adjustable, e.g. for angle adjustment
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
    • F05D—INDEXING SCHEME FOR ASPECTS RELATING TO NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES, GAS-TURBINES OR JET-PROPULSION PLANTS
    • F05D2300/00—Materials; Properties thereof
    • F05D2300/10—Metals, alloys or intermetallic compounds
    • F05D2300/17—Alloys
    • F05D2300/171—Steel alloys
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
    • F05D—INDEXING SCHEME FOR ASPECTS RELATING TO NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES, GAS-TURBINES OR JET-PROPULSION PLANTS
    • F05D2300/00—Materials; Properties thereof
    • F05D2300/10—Metals, alloys or intermetallic compounds
    • F05D2300/17—Alloys
    • F05D2300/173—Aluminium alloys, e.g. AlCuMgPb
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
    • F05D—INDEXING SCHEME FOR ASPECTS RELATING TO NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES, GAS-TURBINES OR JET-PROPULSION PLANTS
    • F05D2300/00—Materials; Properties thereof
    • F05D2300/40—Organic materials
    • F05D2300/43—Synthetic polymers, e.g. plastics; Rubber
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E10/00—Energy generation through renewable energy sources
    • Y02E10/50—Photovoltaic [PV] energy

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Geometry (AREA)
  • Power Engineering (AREA)
  • Wind Motors (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)

Abstract

The invention relates to a ventilation fan, in particular to a multifunctional solar indoor ventilation fan, which can change the direction of wind power through a wind direction adjusting plate, change the pitch of blades and change the size of the wind power and realize the functions of air intake and air exhaust. The frame is square; the wind direction adjusting plate is fixed on the left side of the frame; the motor is fixed in the middle of the frame, and the lower part of the motor is meshed with the variable-pitch fan blades; the variable-pitch fan blades are positioned in the middle of the left side of the frame.

Description

Multifunctional solar indoor ventilation fan
Technical Field
The invention relates to a ventilation fan, in particular to a multifunctional solar indoor ventilation fan.
Background
In the north of winter, the temperature difference between the outdoor and indoor is large, and many people seal the window to prevent cold air from entering due to indoor heating, but the indoor air is in a turbid state for a long time due to the sealing operation to ventilate the indoor. Therefore, the multifunctional solar indoor ventilation fan is designed.
Disclosure of Invention
The invention provides a multifunctional solar indoor ventilator, which has the beneficial effects that the direction of wind power can be changed through a wind direction adjusting plate, the size of the wind power can be changed through changing the pitch of blades, and the functions of air inlet and air exhaust can be realized.
In order to solve the technical problems, the invention relates to a ventilation fan, in particular to a multifunctional solar indoor ventilation fan which comprises a frame, a wind direction adjusting plate, a motor and variable-pitch fan blades, wherein the direction of wind power can be changed through the wind direction adjusting plate, the size of the wind power can be changed through changing the pitch of the fan blades, and the functions of air intake and air exhaust can be realized.
The frame consists of a support frame, a wind screen, a solar panel, a support rod, a push rod, a middle bearing cover, a shaft hole and a middle bearing seat; the left side of the supporting frame is fixed with the wind direction adjusting plate; the wind net is provided with three channels, the wind net is fixed in the support frame, and the wind net is fixed with the support frame through screws; the solar panel is positioned on the right side of the support frame, the left upper side of the solar panel is connected with the support rod, and the left lower side of the solar panel is connected with the push rod; the left end of each support rod is connected with the air net through a pin, and the right end of each support rod is connected with the solar panel; the left end of the push rod is connected with the air net through a pin, and the lower part of the push rod is connected with the air bottle; the middle bearing cover is in a ring shape, the left side of the middle bearing cover is provided with a ring, the left side of the middle bearing cover is in contact with the middle bearing, and the middle bearing cover is fixed in the middle of the wind net through screws; the shaft hole is positioned in the middle of the left side of the wind net and is in contact with the left side of the variable-pitch fan blade; the middle bearing seat is positioned in the middle of the wind net and is in contact with the middle bearing;
the push rod consists of a piston rod, a cylinder, an exhaust port, a piston, an air inlet and a connecting column; the piston rod is a cylinder, a ring is processed at the upper part of the piston rod, the upper part of the piston rod is connected with the solar panel through a pin, the middle part of the piston rod is contacted with the cylinder, and the lower part of the piston rod is fixed with the piston; the cylinder is a cylinder, a round hole is formed in the upper portion of the cylinder, an annular groove is formed in the round hole in the upper portion of the cylinder, a sealing ring is installed in the groove, and two transverse through holes are formed in the right side of the cylinder; the exhaust port is the upper right side of the cylinder, and the left side of the exhaust port is communicated with the inside of the cylinder; the piston is cylindrical and is in contact with the inner wall of the cylinder; the air inlet is positioned at the lower right side of the air cylinder, and the right side of the air inlet is connected with the air bottle; the connecting column is rectangular and is welded at the lower part of the cylinder, a round hole is processed at the lower part of the connecting column, and the connecting column is connected with the air net through a pin;
the wind direction adjusting plate consists of an adjusting plate, a driving horizontal helical gear, a transmission rod, a driven horizontal helical gear, a rotating plate shaft, a driving vertical helical gear, a rotating plate and a driven vertical helical gear; the adjusting plate is rectangular and is positioned on the left side of the frame, and the adjusting plate is fixed on the frame through screws; two driving horizontal bevel gears are arranged, the driving horizontal bevel gears are fixed at two ends of the transmission rod, and the left sides of the driving horizontal bevel gears are meshed with the driving vertical bevel gears; the transmission rod is cylindrical, and the middle part of the transmission rod is fixed with the driven horizontal bevel gear; nine driven horizontal bevel gears are arranged, the driven horizontal bevel gears are positioned on the transmission rod, and the driven horizontal bevel gears are meshed with the driven vertical bevel gears; nine rotating plate shafts are arranged, the rotating plate shafts are fixed with the rotating plates, and the rotating plate shafts are fixed with the driven vertical helical gears; the left end of the driving vertical helical gear is provided with a rotating handle, and the right side of the driving vertical helical gear is meshed with the driving horizontal helical gear; nine rotating plates are arranged and fixed on the rotating plate shaft; nine driven vertical helical gears are arranged, and the driven vertical helical gears are fixed on the rotating plate shaft;
the motor consists of a motor, a motor shaft and a horizontal helical gear; the motor is fixed in the middle of the frame; the lower part of the motor shaft is fixed with the horizontal bevel gear; the horizontal helical gear is fixed at the lower end of the motor shaft;
the variable-pitch fan blade consists of fan blades, a rotating block, a rotating shaft, a variable-pitch shaft and a fixed shaft; the lower part of the fan blade is meshed with the variable pitch shaft; the right side of the rotating block is fixed with the rotating shaft, and the left side of the rotating block is contacted with the fixed shaft; the right side of the rotating shaft is meshed with the motor, and the middle part of the rotating shaft is contacted with the frame; the variable pitch shaft is positioned inside the fixed shaft; the fixed shaft is fixed on the left side of the frame;
the fan blade consists of a fan blade, a root shaft, a fan blade bearing, a clamping ring and bevel teeth; the fan blades are positioned on the upper part of the root shaft; the root shaft is cylindrical, the section of the root shaft is T-shaped, and the lower part of the root shaft is provided with an annular groove; the fan blade bearing is positioned at the lower part of the root shaft and is in interference fit with the root shaft; the clamping ring is positioned on the root shaft, and the upper part of the clamping ring is contacted with the fan blade bearing; the bevel gear is positioned at the lower part of the root shaft, and the left side of the bevel gear is meshed with the variable-pitch shaft;
the rotating block consists of a longitudinal bearing cover, a rotating block, a longitudinal bearing seat, a transverse bearing seat and a transverse bearing cover; the number of the longitudinal bearing covers is four, the longitudinal bearing covers are annular, the longitudinal bearing covers are fixed on the rotating block through screws, and the lower parts of the longitudinal bearing covers are in contact with the fan blade bearings; the rotating block is a cuboid, four threaded holes are processed on the right side of the rotating block, and the rotating block is fixed with the rotating shaft through screws; the longitudinal bearing seat is positioned on the periphery of the rotating block; the transverse bearing block is positioned on the left side of the rotating block; the transverse bearing cover is fixed on the left side of the rotating block through a screw;
the rotating shaft consists of a shaft body, a middle bearing, a vertical helical gear and a connecting plate; the shaft body is a cylinder; the middle bearing is positioned in the middle of the shaft body and is in interference fit with the shaft body; the vertical helical gear is fixed on the right side of the shaft body and is meshed with the horizontal helical gear; the connecting plate is rectangular and is positioned on the left side of the shaft body, and four round holes are processed on the connecting plate;
the variable pitch shaft consists of a spring seat, a spring, a sliding shaft and a tooth cone; the spring seat is cylindrical, a cylindrical groove is processed on the right side of the spring seat, and the spring seat is fixed on the left side of the sliding shaft through a screw; the spring is sleeved on the left side of the sliding shaft, the left side of the spring is in contact with the spring seat, and the right side of the spring is in contact with the left side of the fixed shaft; the left side of the sliding shaft is cylindrical, and the right side of the sliding shaft is square; the tooth cone is positioned on the right side of the sliding shaft;
the fixed shaft consists of a connecting ring, a shaft sleeve and a left side bearing; the connecting ring is annular, a through hole is processed on the connecting ring, the middle part of the connecting ring is fixed on the shaft sleeve through a screw, and the right side of the connecting ring is fixed on the frame; the middle part of the shaft sleeve is square, and the outer part of the shaft sleeve is round; the left bearing is positioned on the right side of the shaft sleeve and is in interference fit with the shaft sleeve;
the frame is square; the wind direction adjusting plate is fixed on the left side of the frame; the motor is fixed in the middle of the frame, and the lower part of the motor is meshed with the variable-pitch fan blades; the variable-pitch fan blades are positioned in the middle of the left side of the frame.
As a further optimization of the technical scheme, the frame of the multifunctional solar indoor ventilator is made of stainless steel materials.
As a further optimization of the technical scheme, the rotating plate of the multifunctional solar indoor ventilator is made of polyethylene materials.
As a further optimization of the technical scheme, the fan blades of the multifunctional solar indoor ventilator are made of aluminum alloy materials.
The multifunctional solar indoor ventilator has the beneficial effects that:
the multifunctional solar indoor ventilator can change the direction of wind power through the wind direction adjusting plate, change the pitch of the fan blades and change the size of the wind power, and can realize the functions of air inlet and air exhaust.
Drawings
The invention is described in further detail below with reference to the accompanying drawings and specific embodiments.
Fig. 1 is a schematic structural view of a multifunctional solar indoor ventilator according to the present invention.
Fig. 2 is a schematic structural view of a frame 1 of the multifunctional solar indoor ventilator of the present invention.
Fig. 3 is a schematic structural view of a push rod 1-5 of the multifunctional solar indoor ventilator of the present invention.
Fig. 4 is a schematic structural view of a wind direction adjusting plate 2 of the multifunctional solar indoor ventilator of the present invention.
Fig. 5 is a schematic structural view of a motor 3 of the multifunctional solar indoor ventilator of the present invention.
Fig. 6 is a schematic structural view of a variable pitch fan blade 4 of the multifunctional solar indoor ventilator of the present invention.
Fig. 7 is a schematic structural view of a fan blade 4-1 of the multifunctional solar indoor ventilator of the present invention.
Fig. 8 is a schematic structural view of a rotating block 4-2 of the multifunctional solar indoor ventilator of the present invention.
Fig. 9 is a schematic structural view of a rotating shaft 4-3 of the multifunctional solar indoor ventilator of the present invention.
Fig. 10 is a schematic structural view of a variable pitch shaft 4-4 of the multifunctional solar indoor ventilator of the present invention.
Fig. 11 is a schematic structural view of a fixing shaft 4-5 of the multifunctional solar indoor ventilator of the present invention.
In the figure: a frame 1; 1-1 of a support frame; 1-2 of an air net; a solar panel 1-3; 1-4 of a support rod; 1-5 of a push rod; a piston rod 1-5-1; 1-5-2 of a cylinder; 1-5-3 of an exhaust port; 1-5-4 parts of a piston; 1-5-5 of an air inlet; 1-5-6 of a connecting column; intermediate bearing caps 1-6; shaft holes 1-7; 1-8 parts of a middle bearing seat; a wind direction adjusting plate 2; adjusting plate 2-1; a driving horizontal bevel gear 2-2; a transmission rod 2-3; 2-4 parts of a driven horizontal bevel gear; rotating the plate shaft 2-5; 2-6 of driving vertical bevel gear; 2-7 of a rotating plate; 2-8 parts of driven vertical bevel gear; a motor 3; a motor 3-1; a motor shaft 3-2; 3-3 of a horizontal bevel gear; a variable-pitch fan blade 4; fan blades 4-1; fan blades 4-1-1; root shaft 4-1-2; fan blade bearings 4-1-3; 4-1-4 of a snap ring; 4-1-5 of bevel gear; 4-2 of a rotating block; a longitudinal bearing cover 4-2-1; 4-2-2 of a rotating block; 4-2-3 of a longitudinal bearing seat; 4-2-4 of a transverse bearing seat; a transverse bearing cover 4-2-5; 4-3 of a rotating shaft; shaft body 4-3-1; 4-3-2 of a middle bearing; 4-3-3 of a vertical bevel gear; 4-3-4 of a connecting plate; 4-4 of a variable pitch shaft; spring seats 4-4-1; 4-4-2 of a spring; 4-4-3 of a sliding shaft; 4-4-4 of a tooth cone; 4-5 of a fixed shaft; 4-5-1 of a connecting ring; 4-5-2 parts of a shaft sleeve; and 4-5-3 of a left bearing.
Detailed Description
The first embodiment is as follows:
the present invention relates to a ventilator, and more particularly, to a multifunctional solar indoor ventilator, which includes a frame 1, a wind direction adjustment plate 2, a motor 3, and a variable pitch fan blade 4, and not only can change the direction of wind force by the wind direction adjustment plate, but also can change the magnitude of wind force by changing the pitch of the fan blade, and can implement the functions of air intake and air exhaust.
The frame 1 consists of a support frame 1-1, an air net 1-2, a solar panel 1-3, a support rod 1-4, a push rod 1-5, a middle bearing cover 1-6, a shaft hole 1-7 and a middle bearing seat 1-8; the supporting frame 1-1 is square, and the left side of the supporting frame 1-1 is fixed with the wind direction adjusting plate 2; the wind net 1-2 is provided with three channels, the wind net 1-2 is fixed inside the support frame 1-1, the wind net 1-2 is fixed with the support frame 1-1 through screws, and the wind net 1-2 is used for preventing touch; the solar panel 1-3 is positioned on the right side of the support frame 1-1, the left upper side of the solar panel 1-3 is connected with the support rod 1-4, and the left lower side of the solar panel 1-3 is connected with the push rod 1-5; two support rods 1-4 are arranged, the left end of each support rod 1-4 is connected with the air net 1-2 through a pin, and the right end of each support rod 1-4 is connected with the solar panel 1-3; the left end of the push rod 1-5 is connected with the air net 1-2 through a pin, and the lower part of the push rod 1-5 is connected with the air bottle; the middle bearing cover 1-6 is in a ring shape, the left side of the middle bearing cover 1-6 is provided with the ring, the left side of the middle bearing cover 1-6 is in contact with the middle bearing 4-3-2, and the middle bearing cover 1-6 is fixed in the middle of the wind net 1-2 through screws; the shaft hole 1-7 is positioned in the middle of the left side of the wind net 1-2, and the shaft hole 1-7 is in contact with the left side of the variable-pitch fan blade 4; the middle bearing seat 1-8 is positioned in the middle of the wind net 1-2, and the middle bearing seat 1-8 is contacted with the middle bearing 4-3-2;
the push rod 1-5 consists of a piston rod 1-5-1, a cylinder 1-5-2, an exhaust port 1-5-3, a piston 1-5-4, an air inlet 1-5-5 and a connecting column 1-5-6; the piston rod 1-5-1 is a cylinder, a circular ring is processed on the upper part of the piston rod 1-5-1, the upper part of the piston rod 1-5-1 is connected with the solar panel 1-3 through a pin, the middle part of the piston rod 1-5-1 is contacted with the cylinder 1-5-2, and the lower part of the piston rod 1-5-1 is fixed with the piston 1-5-4; the air cylinder 1-5-2 is a cylinder, a round hole is processed at the upper part of the air cylinder 1-5-2, an annular groove is processed at the round hole at the upper part of the air cylinder 1-5-2, a sealing ring is arranged in the groove, and two transverse through holes are processed at the right side of the air cylinder 1-5-2; the exhaust port 1-5-3 is the upper right side of the cylinder 1-5-2, the left side of the exhaust port 1-5-3 is communicated with the inside of the cylinder 1-5-2, and the exhaust port 1-5-3 is used for keeping the air pressure at the upper part of the piston 1-5-4 the same as the atmospheric pressure; the piston 1-5-4 is cylindrical, and the piston 1-5-4 is in contact with the inner wall of the cylinder 1-5-2; the air inlet 1-5-5 is positioned at the lower right side of the air cylinder 1-5-2, and the right side of the air inlet 1-5-5 is connected with an air bottle; the connecting column 1-5-6 is rectangular, the connecting column 1-5-6 is welded at the lower part of the cylinder 1-5-2, a round hole is processed at the lower part of the connecting column 1-5-6, and the connecting column 1-5-6 is connected with the air net 1-2 through a pin; the push rod 1-5 is used for pushing the solar panel 1-3 rightwards;
the wind direction adjusting plate 2 consists of an adjusting plate 2-1, a driving horizontal bevel gear 2-2, a transmission rod 2-3, a driven horizontal bevel gear 2-4, a rotating plate shaft 2-5, a driving vertical bevel gear 2-6, a rotating plate 2-7 and a driven vertical bevel gear 2-8; the adjusting plate 2-1 is rectangular, the adjusting plate 2-1 is positioned on the left side of the frame 1, and the adjusting plate 2-1 is fixed on the frame 1 through screws; two driving horizontal bevel gears 2-2 are arranged, the driving horizontal bevel gears 2-2 are fixed at two ends of the transmission rod 2-3, and the left side of the driving horizontal bevel gear 2-2 is meshed with the driving vertical bevel gear 2-6; the transmission rod 2-3 is cylindrical, and the middle part of the transmission rod 2-3 is fixed with the driven horizontal bevel gear 2-4; nine driven horizontal bevel gears 2-4 are arranged, the driven horizontal bevel gears 2-4 are positioned on the transmission rod 2-3, and the driven horizontal bevel gears 2-4 are meshed with the driven vertical bevel gears 2-8; nine rotating plate shafts 2-5 are arranged, the rotating plate shafts 2-5 are fixed with the rotating plates 2-7, and the rotating plate shafts 2-5 are fixed with the driven vertical bevel gears 2-8; two driving vertical bevel gears 2-6 are arranged, a rotating handle is arranged at the left end of each driving vertical bevel gear 2-6, and the right side of each driving vertical bevel gear 2-6 is meshed with the driving horizontal bevel gear 2-2; nine rotating plates 2-7 are arranged, and the rotating plates 2-7 are fixed on the rotating plate shafts 2-5; nine driven vertical bevel gears 2-8 are arranged, and the driven vertical bevel gears 2-8 are fixed on the rotating plate shaft 2-5; the wind direction adjusting plate 2 is used for changing the blowing direction of wind;
the motor 3 consists of a motor 3-1, a motor shaft 3-2 and a horizontal helical gear 3-3; the motor 3-1 is fixed in the middle of the frame 1; the lower part of the motor shaft 3-2 is fixed with the horizontal bevel gear 3-3; the horizontal bevel gear 3-3 is fixed at the lower end of the motor shaft 3-2; the motor 3 is used for providing power for the rotation of the fan blade 4-1;
the variable-pitch fan blade 4 consists of a fan blade 4-1, a rotating block 4-2, a rotating shaft 4-3, a variable-pitch shaft 4-4 and a fixed shaft 4-5; the lower part of the fan blade 4-1 is meshed with the variable pitch shaft 4-4; the right side of the rotating block 4-2 is fixed with the rotating shaft 4-3, and the left side of the rotating block 4-2 is contacted with the fixed shaft 4-5; the right side of the rotating shaft 4-3 is meshed with the motor 3, and the middle part of the rotating shaft 4-3 is contacted with the frame 1; the variable pitch shaft 4-4 is positioned inside the fixed shaft 4-5; the fixed shaft 4-5 is fixed at the left side of the frame 1;
the fan blade 4-1 consists of a fan blade 4-1-1, a root shaft 4-1-2, a fan blade bearing 4-1-3, a clamping ring 4-1-4 and a bevel gear 4-1-5; the fan blade 4-1-1 is positioned at the upper part of the root shaft 4-1-2; the root shaft 4-1-2 is cylindrical, the section of the root shaft 4-1-2 is T-shaped, and the lower part of the root shaft 4-1-2 is provided with an annular groove; the fan blade bearing 4-1-3 is positioned at the lower part of the root shaft 4-1-2, and the fan blade bearing 4-1-3 is in interference fit with the root shaft 4-1-2; the snap ring 4-1-4 is positioned on the root shaft 4-1-2, and the upper part of the snap ring 4-1-4 is contacted with the fan blade bearing 4-1-3; the bevel gear 4-1-5 is positioned at the lower part of the root shaft 4-1-2, and the left side of the bevel gear 4-1-5 is meshed with the variable pitch shaft 4-4;
the rotating block 4-2 consists of a longitudinal bearing cover 4-2-1, a rotating block 4-2-2, a longitudinal bearing seat 4-2-3, a transverse bearing seat 4-2-4 and a transverse bearing cover 4-2-5; four longitudinal bearing covers 4-2-1 are arranged, the longitudinal bearing covers 4-2-1 are circular, the longitudinal bearing covers 4-2-1 are fixed on the rotating block 4-2-2 through screws, and the lower parts of the longitudinal bearing covers 4-2-1 are in contact with fan blade bearings 4-1-3; the rotating block 4-2-2 is a cuboid, four threaded holes are formed in the right side of the rotating block 4-2-2, and the rotating block 4-2-2 is fixed with the rotating shaft 4-3 through screws; the longitudinal bearing seat 4-2-3 is positioned around the rotating block 4-2-2; the transverse bearing block 4-2-4 is positioned at the left side of the rotating block 4-2-2; the transverse bearing cover 4-2-5 is fixed on the left side of the rotating block 4-2-2 through a screw; the rotating block 4-2 is used for supporting the fan blade 4-1;
the rotating shaft 4-3 consists of a shaft body 4-3-1, an intermediate bearing 4-3-2, a vertical helical gear 4-3-3 and a connecting plate 4-3-4; the shaft body 4-3-1 is a cylinder; the middle bearing 4-3-2 is positioned in the middle of the shaft body 4-3-1, and the middle bearing 4-3-2 is in interference fit with the shaft body 4-3-1; the vertical bevel gear 4-3-3 is fixed on the right side of the shaft body 4-3-1, and the vertical bevel gear 4-3-3 is meshed with the horizontal bevel gear 3-3; the connecting plate 4-3-4 is rectangular, the connecting plate 4-3-4 is positioned on the left side of the shaft body 1, and four round holes are processed on the connecting plate 4-3-4; the rotating shaft 4-3 is used for transmitting motion;
the pitch-variable shaft 4-4 consists of a spring seat 4-4-1, a spring 4-4-2, a sliding shaft 4-4-3 and a tooth cone 4-4-4; the spring seat 4-4-1 is cylindrical, a cylindrical groove is processed on the right side of the spring seat 4-4-1, and the spring seat 4-4-1 is fixed on the left side of the sliding shaft 4-4-3 through a screw; the spring 4-4-2 is sleeved on the left side of the sliding shaft 4-4-3, the left side of the spring 4-4-2 is in contact with the spring seat 4-4-1, and the right side of the spring 4-4-2 is in contact with the left side of the fixed shaft 4-5; the left side of the sliding shaft 4-4-3 is cylindrical, and the right side of the sliding shaft 4-4-3 is square; the tooth cone 4-4-4 is positioned at the right side of the sliding shaft 4-4-3; the function of the variable pitch shaft 4-4 is to engage the fan blade 4-1 by moving to the right, thereby changing the pitch of the fan blade 4-1;
the fixed shaft 4-5 consists of a connecting ring 4-5-1, a shaft sleeve 4-5-2 and a left bearing 4-5-3; the connecting ring 4-5-1 is annular, a through hole is processed on the connecting ring 4-5-1, the middle part of the connecting ring 4-5-1 is fixed on the shaft sleeve 4-5-2 through a screw, and the right side of the connecting ring 4-5-1 is fixed on the frame 1; the middle part of the shaft sleeve 4-5-2 is square, and the outer part of the shaft sleeve 4-5-2 is round; the left bearing 4-5-3 is positioned at the right side of the shaft sleeve 4-5-2, and the left bearing 4-5-3 is in interference fit with the shaft sleeve 4-5-2; the fixed shaft 4-5 is used for limiting the variable pitch shaft 4-4 and preventing the variable pitch shaft 4-4 from rotating;
the frame 1 is square; the wind direction adjusting plate 2 is fixed on the left side of the frame 1; the motor 3 is fixed in the middle of the frame 1, and the lower part of the motor 3 is meshed with the variable-pitch fan blades 4; the variable pitch fan blades 4 are positioned in the middle of the left side of the frame 1.
The second embodiment is as follows:
the present embodiment will be described below with reference to fig. 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, and 11, and the present embodiment further describes the first embodiment, in which the frame 1 is made of stainless steel.
The third concrete implementation mode:
the present embodiment will be described below with reference to fig. 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, and 11, and the present embodiment further describes the first embodiment, in which the rotating plates 2 to 7 are made of polyethylene material.
The fourth concrete implementation mode:
the present embodiment will be described below with reference to fig. 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, and 11, and the first embodiment will be further described, in which the fan blade 4-1 is made of an aluminum alloy material.
The working principle of the invention is as follows: principle of fan blade rotation: a motor 3-1 is connected into a circuit, a motor 3-1 is started, the motor 3-1 rotates to drive a horizontal bevel gear 3-3 at the lower part to rotate, the left side of the horizontal bevel gear 3-3 is meshed with a vertical bevel gear 4-3-3, the horizontal bevel gear 3-3 drives the vertical bevel gear 4-3-3 to rotate, the vertical bevel gear 4-3-3 is fixed on the right side of a rotating shaft 4-3, so that the vertical bevel gear 4-3-3 drives the rotating shaft 4-3 to rotate, the rotating shaft 4-3 is fixed on the right side of a rotating block 4-2 through a screw, so that the rotating block 4-2 rotates along with the rotating shaft 4-3, and the rotating block 4-2 drives a fan blade 4-.
Wind direction regulation principle: the hand wheel on the left side of the driving vertical bevel gear 2-6 is rotated, the hand wheel drives the driving vertical bevel gear 2-6 to rotate, the lower part of the driving vertical bevel gear 2-6 is meshed with the driving horizontal bevel gear 2-2, the driving vertical bevel gear 2-6 drives the driving horizontal bevel gear 2-2 to rotate, the driving horizontal bevel gear 2-2 is fixed on the transmission rod 2-3, so the driving horizontal bevel gear 2-2 drives the transmission rod 2-3 to rotate, the transmission rod 2-3 rotates to drive the driven horizontal bevel gear 2-4 on the upper part to rotate, the driven horizontal bevel gear 2-4 is meshed with the driven vertical bevel gear 2-8, the driven vertical bevel gear 2-8 rotates along with the driven horizontal bevel gear 2-4, the driven vertical bevel gear 2-8 is fixed, therefore, the rotating plate shaft 2-5 rotates, and the rotating plate 2-7 is fixed on the rotating plate shaft 2-5, so that the rotating plate 2-7 rotates, and the blowing direction of wind can be changed.
The push-out principle of the solar panel is as follows: the air bottle is opened, compressed air enters the lower part of the air cylinder 1-5-2 through the air inlet 1-5-5, the compressed air pushes the piston 1-5-4 to move upwards, the piston 1-5-4 drives the piston rod 1-5-1 to move upwards, the piston rod 1-5-1 pushes the solar panel 1-3 out rightwards, and finally the solar panel 1-3 is opened to receive the illumination of the sun.
The pitch change principle: the variable-pitch shaft 4-4 is pushed rightwards, the variable-pitch shaft 4-4 moves rightwards and contacts with the bevel teeth 4-1-5, the bevel teeth 4-1-5 of the variable-pitch shaft 4-4 are meshed, when the fan blade 4-1 rotates around the rotating shaft 4-3, the fan blade 4-1 rotates around the axis of the root shaft 4-1-2, the pitch of the fan blade 4-1 is changed, and the air volume is changed; when the variable pitch shaft 4-4 stops being pushed, the variable pitch shaft 4-4 moves leftwards under the action of the spring 4-4-2 and is separated from the thread pitch of the fan blade 4-1 by the bevel gear 4-1-5 to stop changing.
It is to be understood that the above description is not intended to limit the present invention, and the present invention is not limited to the above examples, and that various changes, modifications, additions and substitutions which are within the spirit and scope of the present invention and which may be made by those skilled in the art are also within the scope of the present invention.

Claims (4)

1. The utility model provides a multi-functional solar energy indoor scavenger fan, includes frame (1), wind direction regulating plate (2), motor (3), displacement flabellum (4), its characterized in that: the frame (1) consists of a support frame (1-1), an air net (1-2), a solar panel (1-3), a support rod (1-4), a push rod (1-5), a middle bearing cover (1-6), a shaft hole (1-7) and a middle bearing seat (1-8); the supporting frame (1-1) is square, and the left side of the supporting frame (1-1) is fixed with the wind direction adjusting plate (2); the wind net (1-2) is provided with three channels, the wind net (1-2) is fixed inside the support frame (1-1), and the wind net (1-2) is fixed with the support frame (1-1) through screws; the solar panel (1-3) is positioned on the right side of the support frame (1-1), the left upper side of the solar panel (1-3) is connected with the support rod (1-4), and the left lower side of the solar panel (1-3) is connected with the push rod (1-5); two support rods (1-4) are arranged, the left end of each support rod (1-4) is connected with the air net (1-2) through a pin, and the right end of each support rod (1-4) is connected with the solar panel (1-3); the left end of the push rod (1-5) is connected with the air net (1-2) through a pin, and the lower part of the push rod (1-5) is connected with the air bottle; the middle bearing cover (1-6) is in a circular ring shape, the left side of the middle bearing cover (1-6) is provided with a circular ring, the left side of the middle bearing cover (1-6) is contacted with the middle bearing (4-3-2), and the middle bearing cover (1-6) is fixed in the middle of the wind screen (1-2) through screws; the shaft hole (1-7) is positioned in the middle of the left side of the wind net (1-2), and the shaft hole (1-7) is in contact with the left side of the variable-pitch fan blade (4); the middle bearing seat (1-8) is positioned in the middle of the wind net (1-2), and the middle bearing seat (1-8) is contacted with the middle bearing (4-3-2);
the push rod (1-5) consists of a piston rod (1-5-1), a cylinder (1-5-2), an exhaust port (1-5-3), a piston (1-5-4), an air inlet (1-5-5) and a connecting column (1-5-6); the solar energy water heater is characterized in that the piston rod (1-5-1) is a cylinder, a circular ring is processed on the upper part of the piston rod (1-5-1), the upper part of the piston rod (1-5-1) is connected with the solar panel (1-3) through a pin, the middle part of the piston rod (1-5-1) is contacted with the cylinder (1-5-2), and the lower part of the piston rod (1-5-1) is fixed with the piston (1-5-4); the air cylinder (1-5-2) is a cylinder, a round hole is processed at the upper part of the air cylinder (1-5-2), an annular groove is processed at the round hole at the upper part of the air cylinder (1-5-2), a sealing ring is installed in the groove, and two transverse through holes are processed at the right side of the air cylinder (1-5-2); the exhaust port (1-5-3) is the upper right side of the cylinder (1-5-2), and the left side of the exhaust port (1-5-3) is communicated with the inside of the cylinder (1-5-2); the piston (1-5-4) is cylindrical, and the piston (1-5-4) is in contact with the inner wall of the cylinder (1-5-2); the air inlet (1-5-5) is positioned at the lower right side of the air cylinder (1-5-2), and the right side of the air inlet (1-5-5) is connected with the air cylinder; the connecting column (1-5-6) is rectangular, the connecting column (1-5-6) is welded at the lower part of the cylinder (1-5-2), a round hole is processed at the lower part of the connecting column (1-5-6), and the connecting column (1-5-6) is connected with the air net (1-2) through a pin;
the wind direction adjusting plate (2) consists of an adjusting plate (2-1), a driving horizontal helical gear (2-2), a transmission rod (2-3), a driven horizontal helical gear (2-4), a rotating plate shaft (2-5), a driving vertical helical gear (2-6), a rotating plate (2-7) and a driven vertical helical gear (2-8); the adjusting plate (2-1) is rectangular, the adjusting plate (2-1) is positioned on the left side of the frame (1), and the adjusting plate (2-1) is fixed on the frame (1) through screws; two driving horizontal bevel gears (2-2) are arranged, the driving horizontal bevel gears (2-2) are fixed at two ends of the transmission rod (2-3), and the left sides of the driving horizontal bevel gears (2-2) are meshed with the driving vertical bevel gears (2-6); the transmission rod (2-3) is cylindrical, and the middle part of the transmission rod (2-3) is fixed with the driven horizontal bevel gear (2-4); nine driven horizontal bevel gears (2-4) are arranged, the driven horizontal bevel gears (2-4) are positioned on the transmission rod (2-3), and the driven horizontal bevel gears (2-4) are meshed with the driven vertical bevel gears (2-8); nine rotating plate shafts (2-5) are arranged, the rotating plate shafts (2-5) are fixed with the rotating plates (2-7), and the rotating plate shafts (2-5) are fixed with the driven vertical bevel gears (2-8); two driving vertical bevel gears (2-6) are arranged, the left end of each driving vertical bevel gear (2-6) is provided with a rotating handle, and the right side of each driving vertical bevel gear (2-6) is meshed with the driving horizontal bevel gear (2-2); nine rotating plates (2-7) are arranged, and the rotating plates (2-7) are fixed on the rotating plate shafts (2-5); nine driven vertical bevel gears (2-8) are arranged, and the driven vertical bevel gears (2-8) are fixed on the rotating plate shaft (2-5);
the motor (3) consists of a motor (3-1), a motor shaft (3-2) and a horizontal helical gear (3-3); the motor (3-1) is fixed in the middle of the frame (1); the lower part of the motor shaft (3-2) is fixed with the horizontal bevel gear (3-3); the horizontal helical gear (3-3) is fixed at the lower end of the motor shaft (3-2);
the variable-pitch fan blade (4) consists of a fan blade (4-1), a rotating block (4-2), a rotating shaft (4-3), a variable-pitch shaft (4-4) and a fixed shaft (4-5); the lower part of the fan blade (4-1) is meshed with the variable pitch shaft (4-4); the right side of the rotating block (4-2) is fixed with the rotating shaft (4-3), and the left side of the rotating block (4-2) is contacted with the fixed shaft (4-5); the right side of the rotating shaft (4-3) is meshed with the motor (3), and the middle part of the rotating shaft (4-3) is contacted with the frame (1); the variable pitch shaft (4-4) is positioned inside the fixed shaft (4-5); the fixed shaft (4-5) is fixed at the left side of the frame (1);
the fan blade (4-1) consists of a fan blade (4-1-1), a root shaft (4-1-2), a fan blade bearing (4-1-3), a snap ring (4-1-4) and bevel teeth (4-1-5); the fan blade (4-1-1) is positioned at the upper part of the root shaft (4-1-2); the root shaft (4-1-2) is cylindrical, the section of the root shaft (4-1-2) is T-shaped, and an annular groove is processed at the lower part of the root shaft (4-1-2); the fan blade bearing (4-1-3) is positioned at the lower part of the root shaft (4-1-2), and the fan blade bearing (4-1-3) is in interference fit with the root shaft (4-1-2); the snap ring (4-1-4) is positioned on the root shaft (4-1-2), and the upper part of the snap ring (4-1-4) is contacted with the fan blade bearing (4-1-3); the bevel gear (4-1-5) is positioned at the lower part of the root shaft (4-1-2), and the left side of the bevel gear (4-1-5) is meshed with the variable-pitch shaft (4-4);
the rotating block (4-2) consists of a longitudinal bearing cover (4-2-1), a rotating block (4-2-2), a longitudinal bearing seat (4-2-3), a transverse bearing seat (4-2-4) and a transverse bearing cover (4-2-5); four longitudinal bearing covers (4-2-1) are arranged, the longitudinal bearing covers (4-2-1) are circular, the longitudinal bearing covers (4-2-1) are fixed on the rotating block (4-2-2) through screws, and the lower parts of the longitudinal bearing covers (4-2-1) are in contact with the fan blade bearings (4-1-3); the rotating block (4-2-2) is a cuboid, four threaded holes are formed in the right side of the rotating block (4-2-2), and the rotating block (4-2-2) is fixed with the rotating shaft (4-3) through screws; the longitudinal bearing seat (4-2-3) is positioned around the rotating block (4-2-2); the transverse bearing seat (4-2-4) is positioned at the left side of the rotating block (4-2-2); the transverse bearing cover (4-2-5) is fixed on the left side of the rotating block (4-2-2) through a screw;
the rotating shaft (4-3) consists of a shaft body (4-3-1), a middle bearing (4-3-2), a vertical helical gear (4-3-3) and a connecting plate (4-3-4); the shaft body (4-3-1) is a cylinder; the middle bearing (4-3-2) is positioned in the middle of the shaft body (4-3-1), and the middle bearing (4-3-2) is in interference fit with the shaft body (4-3-1); the vertical helical gear (4-3-3) is fixed on the right side of the shaft body (4-3-1), and the vertical helical gear (4-3-3) is meshed with the horizontal helical gear (3-3); the connecting plate (4-3-4) is rectangular, the connecting plate (4-3-4) is positioned on the left side of the shaft body (1), and four round holes are processed on the connecting plate (4-3-4);
the variable pitch shaft (4-4) consists of a spring seat (4-4-1), a spring (4-4-2), a sliding shaft (4-4-3) and a gear cone (4-4-4); the spring seat (4-4-1) is cylindrical, a cylindrical groove is formed in the right side of the spring seat (4-4-1), and the spring seat (4-4-1) is fixed on the left side of the sliding shaft (4-4-3) through a screw; the spring (4-4-2) is sleeved on the left side of the sliding shaft (4-4-3), the left side of the spring (4-4-2) is in contact with the spring seat (4-4-1), and the right side of the spring (4-4-2) is in contact with the left side of the fixed shaft (4-5); the left side of the sliding shaft (4-4-3) is cylindrical, and the right side of the sliding shaft (4-4-3) is square; the tooth cone (4-4-4) is positioned at the right side of the sliding shaft (4-4-3);
the fixed shaft (4-5) consists of a connecting ring (4-5-1), a shaft sleeve (4-5-2) and a left bearing (4-5-3); the connecting ring (4-5-1) is annular, a through hole is processed on the connecting ring (4-5-1), the middle part of the connecting ring (4-5-1) is fixed on the shaft sleeve (4-5-2) through a screw, and the right side of the connecting ring (4-5-1) is fixed on the frame (1); the middle part of the shaft sleeve (4-5-2) is square, and the outer part of the shaft sleeve (4-5-2) is round; the left bearing (4-5-3) is positioned at the right side of the shaft sleeve (4-5-2), and the left bearing (4-5-3) is in interference fit with the shaft sleeve (4-5-2);
the frame (1) is square; the wind direction adjusting plate (2) is fixed on the left side of the frame (1); the motor (3) is fixed in the middle of the frame (1), and the lower part of the motor (3) is meshed with the variable-pitch fan blades (4); the variable-pitch fan blades (4) are positioned in the middle of the left side of the frame (1).
2. The multifunctional solar indoor ventilator according to claim 1, characterized in that: the frame (1) is made of stainless steel materials.
3. The multifunctional solar indoor ventilator according to claim 1, characterized in that: the rotating plates (2-7) are made of polyethylene materials.
4. The multifunctional solar indoor ventilator according to claim 1, characterized in that: the fan blades (4-1) are made of aluminum alloy materials.
CN201811486902.5A 2018-12-06 2018-12-06 Multifunctional solar indoor ventilation fan Active CN109578305B (en)

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112539189B (en) * 2020-12-02 2022-05-27 广东大粤新能源科技股份有限公司 Environment-friendly solar ventilating fan

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JPH0849378A (en) * 1994-08-05 1996-02-20 Misawa Homes Co Ltd Roof structure with solar cell panel
CN201215368Y (en) * 2008-03-26 2009-04-01 李娅迪 Solar auto ventilation device for dwelling house
CN102384038A (en) * 2011-11-05 2012-03-21 太原科技大学 Structure and control method for solar chimney power generation system
CN202579238U (en) * 2012-05-14 2012-12-05 广州三赫太阳能科技有限公司 Solar energy ventilator for roof and garret
CN203594614U (en) * 2013-12-05 2014-05-14 镇江新区惠聚机电科技有限公司 Variable-pitch fan
CN206190569U (en) * 2016-11-07 2017-05-24 云南耀创能源开发有限公司 Scavenger fan for solar industry

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0849378A (en) * 1994-08-05 1996-02-20 Misawa Homes Co Ltd Roof structure with solar cell panel
CN201215368Y (en) * 2008-03-26 2009-04-01 李娅迪 Solar auto ventilation device for dwelling house
CN102384038A (en) * 2011-11-05 2012-03-21 太原科技大学 Structure and control method for solar chimney power generation system
CN202579238U (en) * 2012-05-14 2012-12-05 广州三赫太阳能科技有限公司 Solar energy ventilator for roof and garret
CN203594614U (en) * 2013-12-05 2014-05-14 镇江新区惠聚机电科技有限公司 Variable-pitch fan
CN206190569U (en) * 2016-11-07 2017-05-24 云南耀创能源开发有限公司 Scavenger fan for solar industry

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