CN111720350B - Multi-mode ventilation exhaust fan for granary - Google Patents
Multi-mode ventilation exhaust fan for granary Download PDFInfo
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- CN111720350B CN111720350B CN202010612824.XA CN202010612824A CN111720350B CN 111720350 B CN111720350 B CN 111720350B CN 202010612824 A CN202010612824 A CN 202010612824A CN 111720350 B CN111720350 B CN 111720350B
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- 238000009423 ventilation Methods 0.000 title claims abstract description 127
- 238000005452 bending Methods 0.000 claims description 32
- 239000004744 fabric Substances 0.000 claims description 24
- 230000001360 synchronised effect Effects 0.000 claims description 10
- 238000009434 installation Methods 0.000 claims description 7
- 230000005540 biological transmission Effects 0.000 claims description 3
- 239000000725 suspension Substances 0.000 claims description 3
- 241000883990 Flabellum Species 0.000 abstract description 5
- 230000001276 controlling effect Effects 0.000 description 20
- 239000000575 pesticide Substances 0.000 description 16
- 230000000694 effects Effects 0.000 description 13
- 238000000034 method Methods 0.000 description 9
- 241000282472 Canis lupus familiaris Species 0.000 description 8
- 241000607479 Yersinia pestis Species 0.000 description 4
- 238000009792 diffusion process Methods 0.000 description 4
- 239000002917 insecticide Substances 0.000 description 4
- 230000002147 killing effect Effects 0.000 description 4
- 230000000749 insecticidal effect Effects 0.000 description 3
- 238000011900 installation process Methods 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 241000238631 Hexapoda Species 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
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Classifications
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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
- F04D25/12—Units comprising pumps and their driving means the working fluid being air, e.g. for ventilation the unit being adapted for mounting in apertures
- F04D25/14—Units comprising pumps and their driving means the working fluid being air, e.g. for ventilation the unit being adapted for mounting in apertures and having shutters, e.g. automatically closed when not in use
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- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01M—CATCHING, TRAPPING OR SCARING OF ANIMALS; APPARATUS FOR THE DESTRUCTION OF NOXIOUS ANIMALS OR NOXIOUS PLANTS
- A01M1/00—Stationary means for catching or killing insects
- A01M1/20—Poisoning, narcotising, or burning insects
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- E—FIXED CONSTRUCTIONS
- E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
- E05F—DEVICES FOR MOVING WINGS INTO OPEN OR CLOSED POSITION; CHECKS FOR WINGS; WING FITTINGS NOT OTHERWISE PROVIDED FOR, CONCERNED WITH THE FUNCTIONING OF THE WING
- E05F15/00—Power-operated mechanisms for wings
- E05F15/60—Power-operated mechanisms for wings using electrical actuators
- E05F15/603—Power-operated mechanisms for wings using electrical actuators using rotary electromotors
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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
- F04D19/00—Axial-flow pumps
- F04D19/002—Axial flow fans
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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
- 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
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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
- F04D29/00—Details, component parts, or accessories
- F04D29/40—Casings; Connections of working fluid
- F04D29/52—Casings; Connections of working fluid for axial pumps
- F04D29/522—Casings; Connections of working fluid for axial pumps especially adapted for elastic fluid pumps
-
- E—FIXED CONSTRUCTIONS
- E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
- E05Y—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES E05D AND E05F, RELATING TO CONSTRUCTION ELEMENTS, ELECTRIC CONTROL, POWER SUPPLY, POWER SIGNAL OR TRANSMISSION, USER INTERFACES, MOUNTING OR COUPLING, DETAILS, ACCESSORIES, AUXILIARY OPERATIONS NOT OTHERWISE PROVIDED FOR, APPLICATION THEREOF
- E05Y2999/00—Subject-matter not otherwise provided for in this subclass
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Pest Control & Pesticides (AREA)
- Geometry (AREA)
- Health & Medical Sciences (AREA)
- Physics & Mathematics (AREA)
- General Health & Medical Sciences (AREA)
- Toxicology (AREA)
- Insects & Arthropods (AREA)
- Wood Science & Technology (AREA)
- Zoology (AREA)
- Environmental Sciences (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
The invention belongs to the technical field of exhaust fans, in particular to a multi-mode ventilation exhaust fan for a granary, which comprises a ventilation control component, a power component, fan blades, an outer pipe body, an inner pipe body and an opening adjusting component, wherein the ventilation control component is arranged on the outer pipe body; according to the invention, the exhaust fan is in a ventilation state by controlling the ventilation control component, the opening of the inner pipe body is completely opened by controlling the opening adjusting component, and the motor I at the moment is arranged to rotate forwards, so that the air outside the granary is conveyed into the granary through the exhaust fan, and further ventilation and ventilation in the granary are realized; realize through control ventilation control part that the exhaust fan is in the enclosed state, and realize reducing the opening of interior body through control opening adjusting part, set up a motor reversal at this moment in addition, and then realize outwards taking out the air in the granary through interior body, and then the air that is taken out by the flabellum returns to in the granary through the passageway between outer body and the interior body, and then realizes that the air in the granary carries out the inner loop.
Description
Technical Field
The invention belongs to the technical field of exhaust fans, and particularly relates to a multi-mode ventilation exhaust fan for a granary.
Background
China is a big agricultural country, grain production and storage have a long history, the improvement of the total amount of grain also brings higher requirements on grain storage, and then grain bins specially used for storing grain appear, the grain is stored in the grain bins, and further certain requirements such as moisture resistance, heat insulation, ventilation, air tightness, insect resistance, fire resistance and the like are also met when the grain is stored, and ventilation is realized in the grain bins through an exhaust fan.
The existing exhaust fan for the granary can only exchange external air with air in the granary, so that the ventilating and air exchanging effects on the granary are realized, but for areas which are in rainy weather for a long time and in periods with poor external environment quality, the humidity and air quality in the granary are deteriorated due to the fact that the existing exhaust fan is used for ventilating the granary, and further extremely bad influence is generated on grains in the granary; when needs are put into the insecticide in the granary in particular, will lead to the insecticide to be discharged through current exhaust fan, and then influence insecticidal effect, if close the exhaust fan also can lead to the insecticide to spread slower, and then can't be fast effectual carry out insecticidal processing to grain in the granary, still can influence insecticidal effect of insecticide finally.
Disclosure of Invention
In order to make up the defects of the prior art, the invention provides a multi-mode ventilation exhaust fan for a granary. The invention is mainly used for solving the problems that the existing exhaust fan for the granary can only exchange the outside air with the air in the granary so as to realize the ventilation and air exchange effects on the granary, but for the areas which are in rainy weather for a long time and the periods with poor quality of the outside environment, the humidity and the air quality in the granary are deteriorated due to the ventilation of the granary through the existing exhaust fan, and the grains in the granary are influenced badly.
The technical scheme adopted by the invention for solving the technical problems is as follows: the invention provides a multi-mode ventilation exhaust fan for a granary, which comprises a ventilation control component, a power component, fan blades, an outer pipe body, an inner pipe body and an opening adjusting component, wherein the ventilation control component is connected with the power component;
the ventilation control component is used for controlling the on-off of the air flow in the exhaust fan;
the power component is arranged on one side of the ventilation control component; the power component is used for providing power for the fan blades; the fan blades are arranged on the power component;
the outer pipe body is sleeved on the outer side of the power part; one end of the outer tube body is connected with the ventilation control component;
the inner pipe body is arranged in the outer pipe body; the inner pipe body is connected to the outer pipe body;
the inner pipe body is provided with the opening adjusting part close to one end of the power part; the opening adjusting part is used for controlling the size of an opening at the end part of the inner pipe body; the opening adjustment member is disposed between the inner tube and the power member;
the power component comprises an L-shaped mounting plate, a spiral supporting shaft, a first belt wheel, a guide rod, a sliding nut, a limiting pin, a rotating ring, a first conical spring, a limiting ring, a belt, a second belt wheel and a first motor; the L-shaped mounting plate is arranged on one side of the ventilation control component; the middle part of the L-shaped mounting plate is fixedly connected with one end of the spiral supporting shaft; the step shaft at one end of the spiral supporting shaft, which is close to the L-shaped mounting plate, is rotatably connected with the first belt wheel; the lower end flat plate of the L-shaped mounting plate is fixedly connected with the first motor; the rotating shaft of the first motor is fixedly connected with the second belt wheel; the second belt wheel is connected with the first belt wheel through the belt; a step shaft in the middle of the spiral supporting shaft is provided with a spiral groove; the suspension end of the spiral supporting shaft is fixedly connected with the limiting ring; the rotating rings are symmetrically arranged on the spiral supporting shaft along the middle part; the rotating ring is rotationally connected to the spiral supporting shaft; one of the rotating rings is arranged close to the first belt wheel; the other rotating ring is arranged close to the limiting ring; the first conical spring is sleeved on the rotating ring; the small-diameter end of the first conical spring is fixedly connected to the rotating ring; the guide rods are arranged on the end face of one side of the first belt wheel at intervals along the circumferential direction; the guide rod is fixedly connected to the first belt wheel; the guide rod is arranged in parallel with the spiral support shaft; the spiral supporting shaft is sleeved with the sliding nut; the sliding nut is connected with the guide rod in a sliding manner; the fan blades are uniformly arranged on the cylindrical surface of the sliding nut at intervals along the circumferential direction; the limiting pin is arranged in the radial direction of the sliding nut; one end of the limiting pin is fixedly connected to the sliding nut; the other end of the limiting pin is inserted into the spiral groove.
When the spiral support shaft works, the first motor is controlled to rotate, the first motor drives the first belt wheel to rotate through the second belt wheel and the belt, the first belt wheel transmits torque to the sliding nut through the guide rod, the sliding nut is driven to rotate, the sliding nut can be close to the spiral groove in the middle of the spiral support shaft due to the elasticity of the first conical spring, if the rotating direction of the sliding nut is the same as that of the spiral groove, the limiting pin on the sliding nut can enter the spiral groove, and the sliding nut is driven to move towards the other end of the spiral support shaft under the action of friction force between the limiting pin and the spiral groove; if the rotating direction of the sliding nut is opposite to that of the spiral groove, the limiting pin on the sliding nut cannot enter the spiral groove, so that the sliding nut rotates along with the rotating ring under the radial supporting force of the first conical spring;
in the working mode of the power component, if the outside weather is good and the air quality is also good, the exhaust fan is in a ventilation state by controlling the ventilation control component, the opening of the inner pipe body is completely opened by controlling the opening adjusting component, and the first motor rotates forwards at the moment, so that the sliding nut rotates along with the rotating ring close to one end of the first belt wheel, the air outside the granary is conveyed into the granary through the exhaust fan, the air exchange and ventilation in the granary are realized, the grains in the granary are guaranteed to have a good storage environment, and the quality of the grains in the storage process is improved; if the outside weather is rainy or the air quality is not good, the exhaust fan is in a closed state by controlling the ventilation control component, the opening of the inner pipe body is reduced by controlling the opening adjusting component, the motor is arranged to rotate reversely at the moment, so that the sliding nut moves to the other end through the thread on the spiral support shaft and rotates along with the rotating ring close to one end of the limiting ring, the fan blades on the sliding nut rotate at a position close to the inner pipe body, the air in the granary is pumped outwards through the inner pipe body, and because the ventilation control component is controlled to be in the closed state at the moment, the air pumped out by the fan blades returns to the granary through a channel between the outer pipe body and the inner pipe body, the internal circulation of the air in the granary is realized, and the air in the granary can flow, thereby preventing the local moisture in the granary; when the pesticide is sprayed to the grains in the granary to kill pests, the sprayed pesticide can be well diffused in the granary along with flowing air through internal circulation ventilation in the granary, the diffusion speed is accelerated, the pesticide killing effect of the pesticide is further improved, and the storage effect of the granary is further improved.
Preferably, the opening adjusting part comprises a supporting plate, an installation frame body, a gear shaft, a fixing plate, a second motor, a rack, an elastic plate and elastic cloth; the lower end of the supporting plate is fixedly connected to the L-shaped mounting plate; the upper end of the supporting plate is fixedly connected with the bottom of the mounting frame body; the gear shaft is arranged in the middle of the mounting frame body along the axial direction of the outer tube body; one end of the gear shaft is rotatably connected in the sinking groove on the mounting frame body; the rack is arranged above and below the gear shaft; the rack slides along a rectangular hole transversely arranged on the mounting frame body; the rack is meshed with the gear teeth on the gear shaft for transmission; the extending end of the rack is fixedly connected with the middle part of the elastic plate; the elastic plate is fixedly connected with one end of the elastic cloth; the edge of one end of the elastic cloth is uniformly distributed along the edges of the two elastic plates; the other end of the elastic cloth is fixedly connected with the end part of the inner tube body; the edge of the other end of the elastic cloth is uniformly distributed along the edge of the end part of the inner tube body; the other end of the gear shaft penetrates through the mounting hole in the fixing plate; the gear shaft is rotationally connected with the fixing plate; the fixing plate is fixedly connected to one side end face of the mounting frame body; the end part of the other end of the gear shaft is fixedly connected with a rotating shaft of the second motor; the second motor is fixedly connected to the fixing plate.
During operation, rotate through controlling No. two motors, and then realize driving the gear shaft and rotate, and then two racks of gear shaft drive are close to or keep away from, and then drive two elastic plates and be close to or keep away from, and then realize contracting or strutting the elasticity cloth through the elastic plate, and then realize that the opening of interior body reduces or increases, and then make opening adjusting part can satisfy and switch over two kinds of ventilation modes to the exhaust fan, and then improve the application scope of exhaust fan, and then improve the result of use of exhaust fan.
Preferably, the ventilation control component comprises an annular rectangular groove frame, a fixed baffle, a ventilation rotating plate, a double-groove belt wheel, a synchronous belt, a first stop block, a second stop block, a turbine, a worm and a friction wheel; the annular rectangular groove frame is internally provided with the ventilation rotating plates at even intervals along the vertical direction; two ends of the ventilation rotating plate penetrate through the inner flat plate of the annular rectangular groove frame; the two ends of the ventilation rotating plate are rotatably connected with the annular rectangular groove frame; the end part of the upper end of the ventilation rotating plate is fixedly connected with the double-groove belt wheel; the adjacent double-groove belt wheels are connected through the synchronous belt; the first check blocks are uniformly arranged on the inner side surface of the lower end of the ventilation rotating plate at intervals and close to the edge; the first stop block is used for limiting the position of the ventilation rotating plate in an opening state; the second stop blocks are uniformly arranged on the inner side surface of the lower end of the ventilation rotating plate at intervals and close to the middle part; the second stop block is used for limiting the position of the ventilation rotating plate in a closed state; the lower end of one of the ventilation rotating plates is fixedly connected with the turbine; the worm wheel is meshed with one end of the worm; the middle part of the worm penetrates through the L-shaped mounting plate; the other end of the worm is connected with the friction wheel; the cylindrical surface of the friction wheel is in contact with the outer side of the belt below the second belt wheel; the side surface of one side of the opening of the annular rectangular groove frame is fixedly connected with the fixed baffle; the fixed baffle is fixedly connected with the end face of the outer tube body.
When the air-conditioner is operated, the first motor drives the second belt wheel to rotate, the belt below the second belt wheel is in contact with the friction wheel to drive the friction wheel to rotate, the friction wheel drives the worm to rotate, the worm drives the turbine to rotate, the turbine drives one of the ventilation rotating plates to rotate, all the ventilation rotating plates are driven to synchronously rotate through the double-groove belt wheel and the synchronous belt, when the first motor rotates forwards, the ventilation rotating plates are driven to be close to the first stop block, the ventilation control component controls the exhaust fan to be in a ventilation state, external air is conveyed into the granary through the inner pipe body, and air circulation in the granary is achieved; when a motor reversal, a motor simultaneous drive ventilation rotor plate is pressed close to No. two dogs, and then makes the control unit that ventilates control exhaust fan be in the encapsulated situation, and then realizes outwards taking out the air in the granary through interior body, and then the air that is taken out by the flabellum returns to the granary in through the passageway between outer body and the interior body, and then realizes that the air in the granary carries out the inner loop, and then realizes that the air in the granary can realize flowing.
Preferably, the friction wheel is of an assembled structure; the friction wheel comprises a hollow roller, a second conical spring and a limiting stop ring; the end part of the other end of the worm is inserted into the hollow roller; the other end of the worm is provided with two limit stop rings at intervals; the second conical spring is arranged between the limiting stop ring and the end surface of the hollow roller; the small-diameter end of the second conical spring is sleeved on the cylindrical surface of the worm; the large-diameter end of the second conical spring is supported on the inner wall of the hollow roller; the outer cylindrical surface of the hollow roller is in contact with the outer side surface of the belt.
When the ventilation rotating plate works, the hollow roller is supported through the second conical spring arranged inside the hollow roller, so that the hollow roller can be kept attached to the outer surface of a belt, the friction force on the belt can be transmitted to the hollow roller, the rotating force is transmitted to the worm through the second conical spring, and the action of driving the ventilation rotating plate is further realized; after the ventilation rotor plate extrudeed No. one dog or No. two dogs, because No. two conical spring can realize warping, and then make the cavity gyro wheel can be convenient for and skid between the surface of belt, and then reduce the wearing and tearing because long-time friction leads to between cavity gyro wheel and the belt, and then improved the life of cavity gyro wheel and belt, and then guarantee that the work of exhaust fan is more stable.
Preferably, the cylindrical surface of the inner tube body, which is close to one side of the elastic cloth, is provided with the annular groove; elastic fixing strips are uniformly arranged in the annular groove at intervals along the circumferential direction; the outer side of the elastic fixing strip is clamped in the annular groove; the inner side of the elastic fixing strip is provided with an arc groove; the bending end of the elastic bending plate is clamped in the arc groove; the bending end of the elastic bending plate is arranged into an arc surface; the arc surface on the elastic bending plate is clamped in the arc groove; the outer tube body is arranged into a segmented structure; the outer pipe body comprises a first pipe body and a second pipe body; the first pipe body and the second pipe body are connected through threads; two inclined plates at the other end of the elastic bending plate are inserted into a step surface between the first pipe body and the second pipe body.
During installation, a first pipe body is fixed, a second pipe body is rotated, the second pipe body is screwed into the first pipe body through threads, in the process that the second pipe body is gradually screwed into the first pipe body, the distance between the end face of the second pipe body and the step face of the threaded hole bottom of the first pipe body is gradually reduced, the end parts of two inclined plates at the other end of the elastic bending plate are extruded, the included angle between the two inclined plates is gradually reduced, the bending end of the elastic bending plate is extruded inwards along the radial direction, the annular groove at the end part of the inner pipe body is limited through the elastic fixing strip, and further the inner pipe body is fixed; the inner pipe body can be automatically clamped in the installation process of the outer pipe body through the elastic bending plate with a certain included angle, so that the convenience of installation and fixation of the inner pipe body is improved, and the use effect of a user is improved; simultaneously, through rotating the screw thread between a body and the second body, and then can adjust the clamp force that the internal body received, and then realize guaranteeing under the circumstances that has sufficient clamp force, can make the clamp force that the internal body received again adjustable, and then guarantee that the clamp force that the internal body received is more stable, and then improved exhaust fan operating condition's stability.
Preferably, an annular accommodating groove is formed in the inner wall of the middle part of the first pipe body; the containing groove is arranged corresponding to the axial position of the elastic plate.
During operation, opening adjustment part is when opening completely, and the elastic plate drives the one end of elasticity cloth and gets into in the holding tank, and then makes the flabellum avoid the side production of elastic plate to block when carrying outside air in to the granary through interior body, and then has improved the air supply efficiency of exhaust fan, and then has improved the ventilation effect of air in the granary.
The invention has the following beneficial effects:
1. if the weather of the outside is good and the air quality is good, the exhaust fan is in a ventilation state by controlling the ventilation control component, the opening of the inner tube body is completely opened by controlling the opening adjusting component, the first motor is arranged to rotate forwards at the moment, so that the sliding nut rotates along with the rotating ring close to one end of the first belt wheel, the air outside the granary is conveyed into the granary through the exhaust fan, the air exchange and ventilation in the granary are realized, the grains in the granary are guaranteed to have a good storage environment, and the quality of the grains in the storage process is improved; if the outside weather is rainy or the air quality is not good, the exhaust fan is in a closed state by controlling the ventilation control component, the opening of the inner pipe body is reduced by controlling the opening adjusting component, the motor is arranged to rotate reversely at the moment, so that the sliding nut moves to the other end through the thread on the spiral support shaft and rotates along with the rotating ring close to one end of the limiting ring, the fan blades on the sliding nut rotate at a position close to the inner pipe body, the air in the granary is pumped outwards through the inner pipe body, and because the ventilation control component is controlled to be in the closed state at the moment, the air pumped out by the fan blades returns to the granary through a channel between the outer pipe body and the inner pipe body, the internal circulation of the air in the granary is realized, and the air in the granary can flow, thereby preventing the local moisture in the granary; when the pesticide is sprayed to the grains in the granary to kill pests, the sprayed pesticide can be well diffused in the granary along with flowing air through internal circulation ventilation in the granary, the diffusion speed is accelerated, the pesticide killing effect of the pesticide is further improved, and the storage effect of the granary is further improved.
2. According to the exhaust fan, the second motor is controlled to rotate, so that the gear shaft is driven to rotate, the gear shaft drives the two racks to be close to or far away from the racks, the two elastic plates are driven to be close to or far away from the racks, the elastic cloth is contracted or expanded through the elastic plates, the opening of the inner pipe body is reduced or enlarged, the opening adjusting part can switch two ventilation modes of the exhaust fan, the application range of the exhaust fan is further enlarged, and the using effect of the exhaust fan is further improved.
3. In the process of driving the second belt wheel to rotate, the first motor drives the friction wheel to rotate by contacting a belt below the second belt wheel with the friction wheel, the friction wheel drives the worm to rotate, the worm drives the turbine to rotate, the turbine drives one ventilation rotating plate to rotate, and all the ventilation rotating plates are driven to synchronously rotate by the double-groove belt wheel and the synchronous belt; when a motor reversal, a motor simultaneous drive ventilation rotor plate is pressed close to No. two dogs, and then makes the control unit that ventilates control exhaust fan be in the encapsulated situation, and then realizes outwards taking out the air in the granary through interior body, and then the air that is taken out by the flabellum returns to the granary in through the passageway between outer body and the interior body, and then realizes that the air in the granary carries out the inner loop, and then realizes that the air in the granary can realize flowing.
4. The hollow roller is supported through the second conical spring arranged inside the hollow roller, so that the hollow roller can be kept attached to the outer surface of a belt, the friction force on the belt can be transmitted to the hollow roller, the rotating force is transmitted to the worm through the second conical spring, and the ventilation rotating plate is driven to act; after the ventilation rotor plate extrudeed No. one dog or No. two dogs, because No. two conical spring can realize warping, and then make the cavity gyro wheel can be convenient for and skid between the surface of belt, and then reduce the wearing and tearing because long-time friction leads to between cavity gyro wheel and the belt, and then improved the life of cavity gyro wheel and belt, and then guarantee that the work of exhaust fan is more stable.
5. When the elastic bending plate is installed, the first pipe body is fixed and then the second pipe body is rotated, so that the second pipe body is screwed into the first pipe body through threads, in the process that the second pipe body is gradually screwed into the first pipe body, the distance between the end face of the second pipe body and the step face of the threaded hole bottom of the first pipe body is gradually reduced, the end parts of two inclined plates at the other end of the elastic bending plate are extruded, the included angle between the two inclined plates is gradually reduced, the bending end of the elastic bending plate is extruded inwards along the radial direction, the annular groove at the end part of the inner pipe body is limited through the elastic fixing strip, and further the inner pipe body is fixed; the inner pipe body can be automatically clamped in the installation process of the outer pipe body through the elastic bending plate with a certain included angle, so that the convenience of installation and fixation of the inner pipe body is improved, and the use effect of a user is improved; simultaneously, through rotating the screw thread between a body and the second body, and then can adjust the clamp force that the internal body received, and then realize guaranteeing under the circumstances that has sufficient clamp force, can make the clamp force that the internal body received again adjustable, and then guarantee that the clamp force that the internal body received is more stable, and then improved exhaust fan operating condition's stability.
Drawings
The invention will be further explained with reference to the drawings.
FIG. 1 is a schematic view of the overall structure of an exhaust fan according to the present invention;
FIG. 2 is a schematic view showing the internal structure of the exhaust fan in the ventilation mode according to the present invention;
FIG. 3 is an enlarged view of a portion of FIG. 2 at A;
FIG. 4 is a front view of the exhaust fan of the present invention in a ventilation mode;
FIG. 5 is a partial enlarged view at B in FIG. 4;
FIG. 6 is a schematic view of the internal structure of the exhaust fan in the internal circulation mode;
FIG. 7 is a front view of the exhaust fan of the present invention in the inner loop mode;
FIG. 8 is a schematic view of the structure of the ventilation control unit of the present invention;
FIG. 9 is a schematic view of the position of the slip nut in the exhaust fan of the present invention in the inner circulation mode;
FIG. 10 is a schematic view of the position of the slip nut in the ventilation mode of the exhaust fan of the present invention;
in the figure: the ventilation control component 1, an annular rectangular groove frame 11, a fixed baffle 12, a ventilation rotating plate 13, a double-groove belt wheel 14, a synchronous belt 141, a first stop 15, a second stop 16, a turbine 17, a worm 18, a friction wheel 19, a hollow roller 191, a second conical spring 192, a limit stop ring 193, a power component 2, an L-shaped mounting plate 21, a spiral support shaft 22, a spiral groove 221, a first belt wheel 23, a belt 231, a second belt wheel 232, a first motor 233, a guide rod 24, a sliding nut 25, a limit pin 26, a rotating ring 27, a first conical spring 28, a limit ring 29, a fan blade 3, an outer pipe body 4, a first pipe body 41, a holding groove 411, a second pipe body 42, an inner pipe body 5, an annular groove 51, an elastic fixing strip 52, an elastic bending plate 53, an opening adjusting component 6, a supporting plate 61, a mounting frame body 62, a gear shaft 63, a fixed plate 64, a second motor 65, a rack 66, an elastic plate 67, a gear plate 51, a worm wheel 18, a worm gears 18, a worm gears 18, a worm wheel 25, a, An elastic cloth 68.
Detailed Description
In order to make the technical means, the creation characteristics, the achievement purposes and the effects of the invention easy to understand, the invention is further described with the specific embodiments.
As shown in fig. 1, fig. 2, fig. 4, fig. 6, fig. 7, fig. 9 and fig. 10, a multi-mode ventilation and exhaust fan for a granary comprises a ventilation control component 1, a power component 2, fan blades 3, an outer pipe body 4, an inner pipe body 5 and an opening adjusting component 6;
the ventilation control component 1 is used for controlling the on-off of air flow in the exhaust fan;
the power component 2 is arranged on one side of the ventilation control component 1; the power component 2 is used for providing power for the fan blades 3; the fan blades 3 are arranged on the power part 2;
the outer tube body 4 is sleeved on the outer side of the power component 2; one end of the outer tube body 4 is connected with the ventilation control component 1;
the inner pipe body 5 is arranged inside the outer pipe body 4; the inner tube 5 is connected to the outer tube 4;
the inner pipe body 5 is provided with the opening adjusting part 6 close to one end of the power part 2; the opening adjusting part 6 is used for controlling the opening size of the end part of the inner pipe body 5; the opening regulating member 6 is disposed between the inner pipe 5 and the power member 2;
the power component 2 comprises an L-shaped mounting plate 21, a spiral support shaft 22, a first belt wheel 23, a guide rod 24, a sliding nut 25, a limiting pin 26, a rotating ring 27, a first conical spring 28, a limiting ring 29, a belt 231, a second belt wheel 232 and a first motor 233; the L-shaped mounting plate 21 is arranged on one side of the ventilation control component 1; the middle part of the L-shaped mounting plate 21 is fixedly connected with one end of the spiral support shaft 22; the first belt wheel 23 is rotatably connected to a step shaft at one end of the spiral support shaft 22 close to the L-shaped mounting plate 21; the first motor 233 is fixedly connected to the lower end flat plate of the L-shaped mounting plate 21; the second belt wheel 232 is fixedly connected to the rotating shaft of the first motor 233; the second belt wheel 232 is connected with the first belt wheel 23 through the belt 231; a step shaft in the middle of the spiral support shaft 22 is provided with a spiral groove 221; the suspension end of the spiral support shaft 22 is fixedly connected with the limit ring 29; the rotating rings 27 are symmetrically arranged on the spiral supporting shaft 22 along the middle part; the rotating ring 27 is rotatably connected to the spiral supporting shaft 22; one of the rotating rings 27 is disposed adjacent to the first pulley 23; the other rotating ring 27 is arranged close to the limiting ring 29; the first conical spring 28 is sleeved on the rotating ring 27; the small-diameter end of the first conical spring 28 is fixedly connected to the rotating ring 27; the guide rods 24 are arranged on the end face of one side of the first belt wheel 23 at intervals along the circumferential direction; the guide rod 24 is fixedly connected to the first belt wheel 23; the guide rod 24 is arranged in parallel with the spiral support shaft 22; the sliding nut 25 is sleeved on the spiral support shaft 22; the sliding nut 25 is connected with the guide rod 24 in a sliding manner; the fan blades 3 are uniformly arranged on the cylindrical surface of the sliding nut 25 at intervals along the circumferential direction; the stopper pin 26 is provided in the radial direction of the slide nut 25; one end of the limit pin 26 is fixedly connected to the sliding nut 25; the other end of the limit pin 26 is inserted into the spiral groove 221.
When the spiral support shaft device works, the first motor 233 is controlled to rotate, the first motor 233 drives the first belt wheel 23 to rotate through the second belt wheel 232 and the belt 231, the first belt wheel 23 transmits torque to the sliding nut 25 through the guide rod 24, the sliding nut 25 is driven to rotate, the sliding nut 25 can be close to the spiral groove 221 in the middle of the spiral support shaft 22 due to the elastic force of the first conical spring 28, if the rotating direction of the sliding nut 25 is the same as that of the spiral groove 221, the limiting pin 26 on the sliding nut 25 can enter the spiral groove 221, and the sliding nut 25 is driven to move towards the other end of the spiral support shaft 22 under the action of friction force between the limiting pin 26 and the spiral groove 221; if the rotation direction of the sliding nut 25 is opposite to the rotation direction of the spiral groove 221, the limit pin 26 on the sliding nut 25 cannot enter the spiral groove 221, so that the sliding nut 25 rotates along with the rotating ring 27 under the radial supporting force of the first conical spring 28;
in the above working mode of the power component 2, if the outside weather is good and the air quality is also good, the ventilation state of the exhaust fan is realized by controlling the ventilation control component 1, the opening of the inner pipe body 5 is completely opened by controlling the opening adjusting component 6, and the first motor 233 is set to rotate forward, so that the sliding nut 25 rotates along with the rotating ring 27 close to one end of the first belt wheel 23, and further the air outside the granary is conveyed into the granary through the exhaust fan, so that the inside of the granary is ventilated, further the grains in the granary are guaranteed to have a good storage environment, and the quality of the grains in the storage process is improved; if the outside weather is rainy or the air quality is not good, the ventilation control component 1 is controlled to realize that the exhaust fan is in a closed state, the opening of the inner pipe body 5 is reduced by controlling the opening adjusting component 6, the first motor 233 is arranged to rotate reversely at the moment, the sliding nut 25 moves to the other end through the thread on the spiral supporting shaft 22 and rotates along with the rotating ring 27 close to one end of the limiting ring 29, the fan blade 3 on the sliding nut 25 rotates at a position close to the inner pipe body 5, the air in the granary is extracted outwards through the inner pipe body 5, and because the ventilation control component 1 is controlled to be in the closed state at the moment, the air extracted by the fan blade 3 returns to the granary through a channel between the outer pipe body 4 and the inner pipe body 5, the internal circulation of the air in the granary is realized, and the flow of the air in the granary can be realized, thereby preventing the local moisture in the granary; when the pesticide is sprayed to the grains in the granary to kill pests, the sprayed pesticide can be well diffused in the granary along with flowing air through internal circulation ventilation in the granary, the diffusion speed is accelerated, the pesticide killing effect of the pesticide is further improved, and the storage effect of the granary is further improved.
As shown in fig. 2, 4, 6 and 7, the opening adjustment member 6 includes a support plate 61, a mounting frame 62, a gear shaft 63, a fixing plate 64, a second motor 65, a rack 66, an elastic plate 67 and an elastic cloth 68; the lower end of the supporting plate 61 is fixedly connected to the L-shaped mounting plate 21; the upper end of the supporting plate 61 is fixedly connected with the bottom of the mounting frame body 62; the gear shaft 63 is arranged in the middle of the mounting frame body 62 along the axial direction of the outer pipe body 4; one end of the gear shaft 63 is rotatably connected in a sinking groove on the mounting frame body 62; one rack 66 is arranged above and below the gear shaft 63; the rack 66 slides along a rectangular hole transversely arranged on the mounting frame 62; the rack 66 is in meshing transmission with the gear teeth on the gear shaft 63; the extending end of the rack 66 is fixedly connected with the middle part of the elastic plate 67; the elastic plate 67 is fixedly connected with one end of the elastic cloth 68; one end edge of the elastic cloth 68 is uniformly distributed along the edges of the two elastic plates 67; the other end of the elastic cloth 68 is fixedly connected with the end part of the inner tube body 5; the other end edge of the elastic cloth 68 is uniformly distributed along the edge of the end part of the inner tube body 5; the other end of the gear shaft 63 penetrates through a mounting hole in the fixing plate 64; the gear shaft 63 is rotatably connected with the fixing plate 64; the fixing plate 64 is fixedly connected to one end face of the mounting frame 62; the end part of the other end of the gear shaft 63 is fixedly connected with a rotating shaft of the second motor 65; the second motor 65 is fixedly connected to the fixing plate 64.
During operation, rotate through controlling No. two motor 65, and then realize driving gear shaft 63 and rotate, and then two racks 66 of gear shaft 63 drive are close to or keep away from, and then drive two elastic plates 67 and be close to or keep away from, and then realize contracting or strutting elastic cloth 68 through elastic plate 67, and then realize interior body 5's opening and reduce or increase, and then make opening adjusting part 6 can satisfy and switch two kinds of ventilation modes to the exhaust fan, and then improve the application scope of exhaust fan, and then improve the result of use of exhaust fan.
As shown in fig. 2, 4, 5, 6, 7 and 8, the ventilation control component 1 includes an annular rectangular groove frame 11, a fixed baffle 12, a ventilation rotating plate 13, a double-groove pulley 14, a synchronous belt 141, a first stopper 15, a second stopper 16, a worm wheel 17, a worm 18 and a friction wheel 19; the ventilation rotating plates 13 are uniformly arranged in the annular rectangular groove frame 11 at intervals along the vertical direction; two ends of the ventilation rotating plate 13 penetrate through the inner side flat plate of the annular rectangular groove frame 11; two ends of the ventilation rotating plate 13 are rotatably connected with the annular rectangular groove frame 11; the upper end part of the ventilation rotating plate 13 is fixedly connected with the double-groove belt wheel 14; the adjacent double-groove pulleys 14 are connected through the synchronous belt 141; the first stop blocks 15 are uniformly arranged on the inner side surface of the lower end of the ventilation rotating plate 13 at intervals and close to the edge; the first stop 15 is used for limiting the position of the ventilation rotating plate 13 in the opening state; the second stop blocks 16 are uniformly arranged on the inner side surface of the lower end of the ventilation rotating plate 13 at intervals and close to the middle part; the second stopper 16 is used for limiting the position of the ventilation rotating plate 13 in the closed state; the lower end of one of the ventilation rotating plates 13 is fixedly connected with the turbine 17; the worm wheel 17 is meshed with one end of the worm 18; the middle part of the worm 18 penetrates through the L-shaped mounting plate 21; the other end of the worm 18 is connected with the friction wheel 19; the cylindrical surface of the friction wheel 19 contacts the outer side of the belt 231 below the second pulley 232; the side surface of the opening side of the annular rectangular groove frame 11 is fixedly connected with the fixed baffle 12; the fixed baffle 12 is fixedly connected with the end face of the outer tube body 4.
When the first motor 233 is in operation, in the process of driving the second belt wheel 232 to rotate, the belt 231 below the second belt wheel 232 is in contact with the friction wheel 19 to drive the friction wheel 19 to rotate, the friction wheel 19 drives the worm 18 to rotate, the worm 18 drives the worm wheel 17 to rotate, the worm wheel 17 drives one of the ventilation rotating plates 13 to rotate, and then all the ventilation rotating plates 13 are driven to synchronously rotate through the double-groove belt wheel 14 and the synchronous belt 141; when a motor 233 reverses, a motor 233 drives ventilation rotating plate 13 to press close to a second stopper 16, so that ventilation control component 1 controls the exhaust fan to be in a closed state, and further the air in the granary is extracted outwards through inner pipe body 5, and further the air extracted by fan blades 3 returns to the granary through a channel between outer pipe body 4 and inner pipe body 5, and further the air in the granary is subjected to internal circulation, and further the air in the granary can be flowed.
As shown in fig. 4 and 5, the friction wheel 19 is of a fabricated structure; the friction wheel 19 comprises a hollow roller 191, a second conical spring 192 and a limit stop ring 193; the other end of the worm 18 is inserted into the hollow roller 191; the other end of the worm 18 is provided with two limit stop rings 193 at intervals; the second conical spring 192 is arranged between the limit stop ring 193 and the end surface of the hollow roller 191; the small-diameter end of the second conical spring 192 is sleeved on the cylindrical surface of the worm 18; the large diameter end of the second conical spring 192 is supported on the inner wall of the hollow roller 191; the outer cylindrical surface of the hollow roller 191 is in contact with the outer side surface of the belt 231.
When the ventilation rotating plate works, the hollow roller 191 supports the hollow roller 191 through the second conical spring 192 arranged inside the hollow roller 191, so that the hollow roller 191 can be kept attached to the outer surface of the belt 231, the friction force on the belt 231 can be transmitted to the hollow roller 191, the rotating force is transmitted to the worm 18 through the second conical spring 192, and the action of driving the ventilation rotating plate 13 is further realized; after ventilation rotor plate 13 extrudees a dog 15 or No. two dogs 16, because No. two conical spring 192 can realize warping, and then make hollow gyro wheel 191 can be convenient for and skid between the surface of belt 231, and then reduce the wearing and tearing because long-time friction leads to between hollow gyro wheel 191 and the belt 231, and then improved the life of hollow gyro wheel 191 and belt 231, and then guarantee that the work of exhaust fan is more stable.
As shown in fig. 2, 3 and 4, the cylindrical surface of the inner tube 5 near the elastic cloth 68 is provided with the annular groove 51; elastic fixing strips 52 are uniformly arranged in the annular groove 51 at intervals along the circumferential direction; the outer side of the elastic fixing strip 52 is clamped in the annular groove 51; the inner side of the elastic fixing strip 52 is provided with an arc groove; the bending end of the elastic bending plate 53 is clamped in the arc groove; the bending end of the elastic bending plate 53 is set to be an arc surface; the arc surface on the elastic bending plate 53 is clamped in the arc groove; the outer tube body 4 is arranged into a segmented structure; the outer tube body 4 comprises a first tube body 41 and a second tube body 42; the first pipe body 41 and the second pipe body 42 are connected through threads; two inclined plates at the other end of the elastic bending plate 53 are inserted on the step surface between the first pipe body 41 and the second pipe body 42.
During installation, the first pipe body 41 is fixed, the second pipe body 42 is rotated, the second pipe body 42 is screwed into the first pipe body 41 through threads, in the process that the second pipe body 42 is gradually screwed into the first pipe body 41, the distance between the end face of the second pipe body 42 and the step face of the threaded hole bottom of the first pipe body 41 is gradually reduced, the end parts of two inclined plates at the other end of the elastic bending plate 53 are extruded, the included angle between the two inclined plates is gradually reduced, the bending end of the elastic bending plate 53 is extruded inwards along the radial direction, the annular groove 51 at the end part of the inner pipe body 5 is limited through the elastic fixing strip 52, and the inner pipe body 5 is further fixed; the inner pipe body 5 can be automatically clamped in the installation process of the outer pipe body 4 through the elastic bending plate 53 with a certain included angle, so that the convenience of installation and fixation of the inner pipe body 5 is improved, and the use effect of a user is improved; meanwhile, through rotating the screw thread between the first pipe body 41 and the second pipe body 42, the clamping force received by the inner pipe body 5 can be adjusted, so that the situation that sufficient clamping force is provided is guaranteed, the clamping force received by the inner pipe body 5 can be adjusted, the clamping force received by the inner pipe body 5 is more stable, and the stability of the working state of the exhaust fan is improved.
As shown in fig. 2 and 4, an annular accommodating groove 411 is formed on the inner wall of the middle part of the first pipe body 41; the accommodating groove 411 is provided corresponding to an axial position of the elastic plate 67.
During operation, opening adjustment part 6 is when opening completely, and during the one end that elastic plate 67 drove elastic cloth 68 got into holding tank 411, and then avoided the side production of elastic plate 67 to block when making flabellum 3 carry outside air in to the granary through interior body 5, and then improved the air supply efficiency of exhaust fan, and then improved the ventilation effect of air in the granary.
When the spiral support shaft device works, the first motor 233 is controlled to rotate, the first motor 233 drives the first belt wheel 23 to rotate through the second belt wheel 232 and the belt 231, the first belt wheel 23 transmits torque to the sliding nut 25 through the guide rod 24, the sliding nut 25 is driven to rotate, the sliding nut 25 can be close to the spiral groove 221 in the middle of the spiral support shaft 22 due to the elastic force of the first conical spring 28, if the rotating direction of the sliding nut 25 is the same as that of the spiral groove 221, the limiting pin 26 on the sliding nut 25 can enter the spiral groove 221, and the sliding nut 25 is driven to move towards the other end of the spiral support shaft 22 under the action of friction force between the limiting pin 26 and the spiral groove 221; if the rotation direction of the sliding nut 25 is opposite to the rotation direction of the spiral groove 221, the limit pin 26 on the sliding nut 25 cannot enter the spiral groove 221, so that the sliding nut 25 rotates along with the rotating ring 27 under the radial supporting force of the first conical spring 28; in the above working mode of the power component 2, if the outside weather is good and the air quality is also good, the ventilation state of the exhaust fan is realized by controlling the ventilation control component 1, the opening of the inner pipe body 5 is completely opened by controlling the opening adjusting component 6, and the first motor 233 is set to rotate forward, so that the sliding nut 25 rotates along with the rotating ring 27 close to one end of the first belt wheel 23, and further the air outside the granary is conveyed into the granary through the exhaust fan, so that the inside of the granary is ventilated, further the grains in the granary are guaranteed to have a good storage environment, and the quality of the grains in the storage process is improved; if the outside weather is rainy or the air quality is not good, the ventilation control component 1 is controlled to realize that the exhaust fan is in a closed state, the opening of the inner pipe body 5 is reduced by controlling the opening adjusting component 6, the first motor 233 is arranged to rotate reversely at the moment, the sliding nut 25 moves to the other end through the thread on the spiral supporting shaft 22 and rotates along with the rotating ring 27 close to one end of the limiting ring 29, the fan blade 3 on the sliding nut 25 rotates at a position close to the inner pipe body 5, the air in the granary is extracted outwards through the inner pipe body 5, and because the ventilation control component 1 is controlled to be in the closed state at the moment, the air extracted by the fan blade 3 returns to the granary through a channel between the outer pipe body 4 and the inner pipe body 5, the internal circulation of the air in the granary is realized, and the flow of the air in the granary can be realized, thereby preventing the local moisture in the granary; when the pesticide is sprayed to the grains in the granary to kill pests, the sprayed pesticide can be well diffused in the granary along with flowing air through internal circulation ventilation in the granary, the diffusion speed is accelerated, the pesticide killing effect of the pesticide is further improved, and the storage effect of the granary is further improved.
While the present invention has been described with reference to the embodiments shown in the drawings, the present invention is not limited to the embodiments, which are illustrative and not restrictive, and it will be apparent to those skilled in the art that various changes and modifications can be made therein without departing from the spirit and scope of the invention as defined in the appended claims.
Claims (6)
1. A multi-mode ventilation exhaust fan for granary, its characterized in that: comprises a ventilation control part (1), a power part (2), fan blades (3), an outer pipe body (4), an inner pipe body (5) and an opening adjusting part (6);
the ventilation control component (1) is used for controlling the on-off of air flow in the exhaust fan;
the power component (2) is arranged on one side of the ventilation control component (1); the power component (2) is used for providing power for the fan blades (3); the fan blades (3) are arranged on the power component (2);
the outer pipe body (4) is sleeved on the outer side of the power component (2); one end of the outer tube body (4) is connected with the ventilation control component (1);
the inner pipe body (5) is arranged in the outer pipe body (4); the inner tube (5) is connected to the outer tube (4);
the opening adjusting part (6) is arranged at one end of the inner pipe body (5) close to the power part (2); the opening adjusting part (6) is used for controlling the opening size of the end part of the inner pipe body (5); the opening adjustment member (6) is disposed between the inner pipe body (5) and the power member (2);
the power component (2) comprises an L-shaped mounting plate (21), a spiral supporting shaft (22), a first belt wheel (23), a guide rod (24), a sliding nut (25), a limiting pin (26), a rotating ring (27), a first conical spring (28), a limiting ring (29), a belt (231), a second belt wheel (232) and a first motor (233); the L-shaped mounting plate (21) is arranged on one side of the ventilation control component (1); the middle part of the L-shaped mounting plate (21) is fixedly connected with one end of the spiral supporting shaft (22); the step shaft at one end of the spiral supporting shaft (22) close to the L-shaped mounting plate (21) is rotatably connected with the first belt wheel (23); the lower end flat plate of the L-shaped mounting plate (21) is fixedly connected with the first motor (233); the rotating shaft of the first motor (233) is fixedly connected with the second belt wheel (232); the second belt wheel (232) is connected with the first belt wheel (23) through the belt (231); a step shaft in the middle of the spiral supporting shaft (22) is provided with a spiral groove (221); the suspension end of the spiral supporting shaft (22) is fixedly connected with the limiting ring (29); the spiral supporting shaft (22) is symmetrically provided with the rotating rings (27) along the middle part; the rotating ring (27) is rotationally connected to the spiral supporting shaft (22); one of the rotating rings (27) is arranged close to the first belt wheel (23); the other rotating ring (27) is arranged close to the limiting ring (29); the first conical spring (28) is sleeved on the rotating ring (27); the small-diameter end of the first conical spring (28) is fixedly connected to the rotating ring (27); the guide rods (24) are arranged on the end face of one side of the first belt wheel (23) at intervals along the circumferential direction; the guide rod (24) is fixedly connected to the first belt wheel (23); the guide rod (24) is arranged in parallel with the spiral supporting shaft (22); the spiral supporting shaft (22) is sleeved with the sliding nut (25); the sliding nut (25) is connected with the guide rod (24) in a sliding manner; the fan blades (3) are uniformly arranged on the cylindrical surface of the sliding nut (25) at intervals along the circumferential direction; the limiting pin (26) is arranged in the radial direction of the sliding nut (25); one end of the limiting pin (26) is fixedly connected to the sliding nut (25); the other end of the limiting pin (26) is inserted into the spiral groove (221).
2. The multi-mode ventilation and exhaust fan for the granary according to claim 1, wherein: the opening adjusting component (6) comprises a supporting plate (61), an installation frame body (62), a gear shaft (63), a fixing plate (64), a second motor (65), a rack (66), an elastic plate (67) and elastic cloth (68); the lower end of the supporting plate (61) is fixedly connected to the L-shaped mounting plate (21); the upper end of the supporting plate (61) is fixedly connected with the bottom of the mounting frame body (62); the gear shaft (63) is arranged in the middle of the mounting frame body (62) along the axial direction of the outer pipe body (4); one end of the gear shaft (63) is rotatably connected into the sinking groove on the mounting frame body (62); one rack (66) is arranged above and below the gear shaft (63); the rack (66) slides along a rectangular hole transversely arranged on the mounting frame body (62); the rack (66) is in meshed transmission with gear teeth on the gear shaft (63); the extending end of the rack (66) is fixedly connected with the middle part of the elastic plate (67); the elastic plate (67) is fixedly connected with one end of the elastic cloth (68); one end edge of the elastic cloth (68) is uniformly distributed along the edges of the two elastic plates (67); the other end of the elastic cloth (68) is fixedly connected with the end part of the inner tube body (5); the other end edge of the elastic cloth (68) is uniformly distributed along the edge of the end part of the inner tube body (5); the other end of the gear shaft (63) penetrates through a mounting hole in the fixing plate (64); the gear shaft (63) is rotationally connected with the fixing plate (64); the fixing plate (64) is fixedly connected to one side end face of the mounting frame body (62); the end part of the other end of the gear shaft (63) is fixedly connected with a rotating shaft of the second motor (65); the second motor (65) is fixedly connected to the fixing plate (64).
3. The multi-mode ventilation and exhaust fan for the granary according to claim 2, wherein: the ventilation control component (1) comprises an annular rectangular groove frame (11), a fixed baffle (12), a ventilation rotating plate (13), a double-groove belt wheel (14), a synchronous belt (141), a first stop block (15), a second stop block (16), a turbine (17), a worm (18) and a friction wheel (19); the ventilation rotating plates (13) are uniformly arranged in the annular rectangular groove frame (11) at intervals along the vertical direction; two ends of the ventilation rotating plate (13) penetrate through the inner flat plate of the annular rectangular groove frame (11); two ends of the ventilation rotating plate (13) are rotatably connected with the annular rectangular groove frame (11); the upper end part of the ventilation rotating plate (13) is fixedly connected with the double-groove belt wheel (14); the adjacent double-groove pulleys (14) are connected through the synchronous belt (141); the first stop blocks (15) are uniformly arranged on the inner side surface of the lower end of the ventilation rotating plate (13) at intervals and close to the edge; the first stop block (15) is used for limiting the position of the ventilation rotating plate (13) in an opening state; the second stop blocks (16) are uniformly arranged on the inner side surface of the lower end of the ventilation rotating plate (13) at intervals and close to the middle part; the second stop block (16) is used for limiting the position of the ventilation rotating plate (13) in a closed state; the lower end of one ventilation rotating plate (13) is fixedly connected with the turbine (17); the worm wheel (17) is in meshed connection with one end of the worm (18); the middle part of the worm (18) penetrates through the L-shaped mounting plate (21); the other end of the worm (18) is connected with the friction wheel (19); the cylindrical surface of the friction wheel (19) is in contact with the outer side of the belt (231) below the second belt wheel (232); the side surface of one side of the opening of the annular rectangular groove frame (11) is fixedly connected with the fixed baffle (12); the fixed baffle (12) is fixedly connected with the end face of the outer tube body (4).
4. The multi-mode ventilation and exhaust fan for the granary according to claim 3, wherein: the friction wheel (19) is of an assembled structure; the friction wheel (19) comprises a hollow roller (191), a second conical spring (192) and a limit stop ring (193); the other end of the worm (18) is inserted into the hollow roller (191); the other end of the worm (18) is provided with two limit stop rings (193) at intervals; the second conical spring (192) is arranged between the limiting baffle ring (193) and the end surface of the hollow roller (191); the small-diameter end of the second conical spring (192) is sleeved on the cylindrical surface of the worm (18); the large-diameter end of the second conical spring (192) is supported on the inner wall of the hollow roller (191); an outer cylindrical surface of the hollow roller (191) is in contact with an outer side surface of the belt (231).
5. The multi-mode ventilation and exhaust fan for the granary according to claim 4, wherein: the cylindrical surface of the inner tube body (5) close to one side of the elastic cloth (68) is provided with the annular groove (51); elastic fixing strips (52) are uniformly arranged in the annular groove (51) at intervals along the circumferential direction; the outer side of the elastic fixing strip (52) is clamped in the annular groove (51); the inner side of the elastic fixing strip (52) is provided with an arc groove; the arc groove is internally clamped with the bending end of the elastic bending plate (53); the bending end of the elastic bending plate (53) is arranged into an arc surface; the arc surface on the elastic bending plate (53) is clamped in the arc groove; the outer tube body (4) is arranged into a segmented structure; the outer pipe body (4) comprises a first pipe body (41) and a second pipe body (42); the first pipe body (41) is connected with the second pipe body (42) through threads; two inclined plates at the other end of the elastic bending plate (53) are inserted on a step surface between the first pipe body (41) and the second pipe body (42).
6. The multi-mode ventilation and exhaust fan for the granary according to claim 5, wherein: an annular accommodating groove (411) is formed in the inner wall of the middle part of the first pipe body (41); the accommodating groove (411) is arranged corresponding to the axial position of the elastic plate (67).
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| CN112566463B (en) * | 2020-12-07 | 2022-07-05 | 和远智能科技股份有限公司 | Safety protection device of communication manager for integrated automation system and use method thereof |
| WO2024087516A1 (en) * | 2022-10-25 | 2024-05-02 | 满洲里达赉湖热电有限公司 | Adjustment mechanism and blower for thermal power plant |
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| CN203050347U (en) * | 2012-12-10 | 2013-07-10 | 朱燕辉 | Ball screw hanging arm type door opener |
| CN103322638A (en) * | 2013-04-27 | 2013-09-25 | 林智勇 | PM 2.5 ventilator device |
| CN105805036A (en) * | 2016-03-10 | 2016-07-27 | 浙江省粮食局直属粮油储备库 | Exhaust fan for transverse ventilation network system of granary |
| CN110002210A (en) * | 2019-04-16 | 2019-07-12 | 上海为肯工业设计有限公司 | Device is varied used in a kind of high temperature/irradiation apparatus |
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| CN111720350A (en) | 2020-09-29 |
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