CN108591089B - Exhaust fan - Google Patents
Exhaust fan Download PDFInfo
- Publication number
- CN108591089B CN108591089B CN201810283661.8A CN201810283661A CN108591089B CN 108591089 B CN108591089 B CN 108591089B CN 201810283661 A CN201810283661 A CN 201810283661A CN 108591089 B CN108591089 B CN 108591089B
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- China
- Prior art keywords
- mesh enclosure
- air inlet
- motor
- inlet mesh
- fixedly connected
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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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
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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
- F04D29/002—Details, component parts, or accessories especially adapted for elastic fluid pumps
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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
- F04D29/70—Suction grids; Strainers; Dust separation; Cleaning
- F04D29/701—Suction grids; Strainers; Dust separation; Cleaning especially adapted for elastic fluid pumps
- F04D29/703—Suction grids; Strainers; Dust separation; Cleaning especially adapted for elastic fluid pumps specially for fans, e.g. fan guards
Abstract
The invention belongs to the technical field of exhaust fans, and particularly relates to an exhaust fan which comprises a shell, an electric cylinder, a motor, fan blades, a connecting shaft, a dust removal device, an air inlet mesh enclosure, an air outlet mesh enclosure, a clutch device, an installation plate and a drainage device, wherein the shell is provided with a fan body; the inner wall of the left end of the shell is fixedly connected with an air inlet mesh enclosure; the inner wall of the right end of the shell is fixedly connected with an air outlet mesh enclosure; a first opening is formed in the center of the air outlet net cover; the electric cylinder is fixedly arranged in the first opening through the mounting plate; the non-output end of the motor is fixedly connected to the end part of the cylinder rod of the electric cylinder; the end of the rotating shaft of the motor is provided with a clutch device which is matched and connected with the dust removal device; the dust removal device is rotatably arranged in the center of the air inlet mesh enclosure through a connecting shaft; the spray pipe is arranged above the air inlet mesh enclosure, and the drainage device is arranged below the air inlet mesh enclosure. The mesh enclosure cleaning device is mainly used for cleaning the mesh enclosure of the exhaust fan, can automatically clean the mesh enclosure, and improves the cleaning efficiency.
Description
Technical Field
The invention belongs to the technical field of exhaust fans, and particularly relates to an exhaust fan.
Background
The exhaust fan drives the fan blades to rotate by the motor to drive airflow, so that indoor air and outdoor air are exchanged. Also known as ventilators. The purpose of the exhaust air is to remove the dirty air from the room and to adjust the temperature, humidity and sensory effects. Because the exhaust fan is generally fixedly installed at the indoor top, a lot of dust is accumulated on the exhaust fan after long-term use, the cleaning is inconvenient, and the dust can influence the working efficiency of the exhaust fan.
The technical scheme of some exhaust fans has also appeared among the prior art, chinese patent like application No. 201610465854.6 discloses an exhaust fan with automatic cleaning device, which comprises a housing, the casing top is provided with the water tank, water tank one side is provided with the controller, the water tank top is provided with the water pump, the fixed support frame that is provided with in casing top one side, the support frame top is fixed with electric putter, the electric putter bottom is connected with the brush board through the articulated elements, brush board bottom is provided with the brush, the inside pipeline that is provided with of brush board, through water piping connection between water pump and the pipeline, casing one side is provided with the filter screen, the fixed cistern that is provided with in casing bottom one side, the inside fixed inverter motor that is provided with through the mounting of casing, inverter motor one side is provided with the fan blade, controller and water pump, electric putter, The variable frequency motors are all electrically connected. Although the technology can realize that the hairbrush sprays and brushes the mesh enclosure, the technical scheme can only brush the outer side surface of the mesh enclosure, but not clean the inner side surface of the mesh enclosure, and meanwhile, the technical scheme can not timely clean dust and dirt on the brush plate, so that the use of the invention is limited.
Disclosure of Invention
In order to make up for the defects of the prior art, the invention provides the exhaust fan which is mainly used for cleaning the mesh enclosure of the exhaust fan and can realize automatic cleaning of the mesh enclosure. The inner side surface and the outer side surface of the air inlet mesh enclosure can be cleaned simultaneously through the mutual matching work of the brush plate and the water scraping plate; meanwhile, the water squeezing block and the sponge block on the water scraping plate are matched with each other, so that dust and stains on the water scraping plate can be timely cleaned; the cleaning efficiency is improved.
The technical scheme adopted by the invention for solving the technical problems is as follows: the invention relates to an exhaust fan which comprises a shell, an electric cylinder, a motor, fan blades, a connecting shaft, a dust removal device, an air inlet mesh enclosure, an air outlet mesh enclosure, a clutch device, an installation plate and a drainage device, wherein the shell is provided with a fan blade; the casing is cylindrical, the inner wall of the left end of the casing is fixedly connected with an air inlet mesh enclosure, and the air inlet mesh enclosure is used for filtering dust at an air outlet; the inner wall of the right end of the shell is fixedly connected with an air outlet mesh enclosure which plays a role in protecting a user; a first opening is formed in the center of the air outlet net cover; the electric cylinder is fixedly arranged in the first opening through a mounting plate; the non-output end of the motor is fixedly connected to the end part of the cylinder rod of the electric cylinder; the middle part of a rotating shaft of the motor is provided with fan blades, and the end head of the rotating shaft of the motor is provided with a clutch device which is matched and connected with the dust removal device; the clutch device is used for cutting off or combining power between the motor and the dust removal device, the power of the clutch device is used for the electric cylinder, and meanwhile, the strength and the movement stability of the electric cylinder also meet the use requirements, so that the reliability of the clutch device is ensured; the dust removal device is rotatably arranged in the center of the air inlet mesh enclosure through a connecting shaft; the dust removal device is used for cleaning the air inlet mesh enclosure; a spray pipe is arranged above the air inlet mesh enclosure and used for spraying water to the air inlet mesh enclosure and washing dust on the air inlet mesh enclosure, and a drainage device is arranged below the air inlet mesh enclosure; wherein the content of the first and second substances,
the clutch device comprises a pressing block and a first spring; one end of a rotating shaft of the motor is provided with a mounting hole; the pressing block is slidably arranged in the mounting hole through a first spring; the cross section of the pressing block is arched, and the arched cross section of the pressing block is parallel to the axis of the rotating shaft of the motor; one end of the connecting shaft, which is close to the clutch device, is provided with an inserting hole; the inner wall of the insertion hole is provided with a connecting groove matched with the pressing block; the rotating shaft of the motor can be inserted into the inserting hole; the pressing block is used for connecting the motor rotating shaft and the connecting shaft; the section of the pressing block is arched door-shaped, so that a rotating shaft of the motor can be conveniently inserted into the inserting hole, and the two side surfaces of the pressing block are planes and can be attached to the side surfaces of the connecting groove in the inserting hole to transmit torque; after the rotating shaft of the motor is inserted into the inserting hole, the pressing block is compressed in the mounting hole, the extending length of the electric cylinder is adjustable, the accurate axial position of the rotating shaft of the motor inserted into the inserting hole is ensured, the pressing block rotates to the position corresponding to the connecting groove under the driving of the rotation of the motor shaft, and under the action of the elastic force of the first spring in the mounting hole, the pressing block is popped out to be just matched with the connecting groove, so that the transmission of torque is realized; the clutch device realizes that the dust removal device can be automatically connected and separated under the condition that the motor runs, the work of automatically cleaning the exhaust fan is completed, the problems that the exhaust fan is too high in installation, troublesome in disassembly and difficult in cleaning of the dead angle of the air inlet mesh enclosure are solved, and meanwhile, the manual cleaning cost and the cleaning time are saved.
Preferably, the dust removal device comprises a brush plate, a water scraping plate and a water squeezing block, wherein the brush plate is arranged outside the air inlet mesh enclosure and is used for cleaning the outside of the air inlet mesh enclosure; the water scraping plate is arranged on the inner side of the air inlet mesh enclosure and used for cleaning the inner side of the air inlet mesh enclosure; the water squeezing block is arranged below the inner side of the air inlet mesh enclosure and is used for being matched with the sponge block on the water scraping plate, so that sewage on the sponge block is removed; the brush plate is fixedly connected with the wiper plate through a connecting shaft; the water scraping plate is disc-shaped and is eccentrically arranged on the connecting shaft; sponge blocks which are radial at intervals are fixedly arranged on the surface of one side of the water scraping plate, which is close to the air inlet mesh enclosure, a brush plate is arranged between every two adjacent sponge blocks, and the brush plates and the sponge blocks are alternately arranged, so that dust on the air inlet mesh enclosure can be effectively removed, and water stain is not left after dust removal; the brush board is provided with the via hole, sets up the area of keeping out the wind that the via hole has reduced the wiper blade, guarantees the effect of airing exhaust of exhaust fan.
Preferably, the brush board is fixedly connected to the water scraping plate through a second spring, and the second spring is fixedly installed at the bottom of the brush board, so that the dust on the surface of the brush board can be effectively brushed off under the condition that the air inlet mesh enclosure is uneven.
Preferably, the brush plate is fixedly connected to the wiper plate; the sponge blocks and the brush plates are arranged in a staggered mode, the cross sections of the whole sponge blocks and the whole brush plates are in a step shape, the brush plates are simple in structure, and the step-shaped arrangement mode achieves layer-by-layer brushing of the surface of the air inlet mesh enclosure from the shallow position to the deep position, so that certain stubborn stains are guaranteed to be removed.
Preferably, the water squeezing block is fixedly connected to the inner side surface below the air inlet mesh enclosure and is arranged below the air inlet mesh enclosure to ensure that the squeezed sewage can be separated from the water scraping plate immediately and directly flows into the water discharging device; the water squeezing blocks are arranged in two rows in parallel along the vertical direction, the two rows of water squeezing blocks are staggered with each other in the vertical direction, the arrangement mode that the two rows are staggered with each other enables water squeezed by one water squeezing block in one row to be immediately used for water saving again by the water squeezing block staggered with the water squeezing block in the other row, and the like, so that the water saving effect is guaranteed.
Preferably, the drainage device comprises a drainage box, a stay wire, a conical block and a floating ball, wherein the drainage box is fixedly connected to the bottom of the air inlet mesh enclosure, and a drainage hole is formed in the bottom of the drainage box; a conical block is fixedly connected below the floating ball; the conical block is connected with the inner wall of the drain hole through a pull wire; the sewage enters the drainage tank, and when the buoyancy of the floating ball is smaller than the gravity of the floating ball and the conical block, the drainage tank stores the water and does not drain the water; along with the increase of the water level, when the buoyancy force borne by the floating ball is larger than the gravity of the floating ball and the conical block, the floating ball drives the conical block to rise, the water outlet is opened, and the intermittent water drainage is realized; the dirt in the sewage easily blocks the drain hole, and the conical block removes the adhesion of the drain hole when falling each time.
The invention has the following beneficial effects:
1. the clutch device is matched with the dust removal device to automatically remove dust on the surface of the air inlet mesh enclosure; meanwhile, a drainage device is arranged below the dust removal device, sewage is discharged in a centralized manner, secondary pollution is prevented, automatic cleaning of the exhaust fan is achieved, and cleaning efficiency of the exhaust fan is improved.
2. According to the invention, by arranging the clutch device and utilizing the structural characteristics of the pressing block, the dust removal device can be automatically connected and disconnected under the condition of motor operation, the work of automatically cleaning the exhaust fan is completed, the problems that the exhaust fan is too high in installation, troublesome in disassembly and difficult in cleaning dead angles of the air inlet mesh enclosure are solved, and meanwhile, the manual cleaning cost and the cleaning time are saved.
3. The invention cleans the inner side and the outer side of the air inlet mesh enclosure through the water scraping plate and the brush plate arranged on the dust removing device; through set up brush board and sponge piece on the wiper plate surface, improve cleaning efficiency.
4. The spring is fixedly arranged at the bottom of the brush plate, so that the uneven surface is scrubbed; according to the invention, the sponge block and the cross section of the brush plate are arranged in a step shape, so that the surface of the air inlet mesh enclosure is brushed layer by layer from shallow to deep, and further, the removal of some stubborn stains is ensured.
5. The invention realizes intermittent drainage by arranging the drainage device; the dirt in the sewage easily blocks the drain hole, and the conical block removes the adhesion of the drain hole when falling each time.
Drawings
The invention will be further explained with reference to the drawings.
FIG. 1 is a front view of the present invention;
FIG. 2 is a cross-sectional view A-A of FIG. 1;
FIG. 3 is a sectional view taken along line B-B in FIG. 2, showing a first construction of the wiper blade according to the present invention;
FIG. 4 is a sectional view taken along line B-B in FIG. 2, showing a second configuration of the wiper blade according to the present invention;
FIG. 5 is a schematic view of the structure at C in FIG. 1;
in the figure: the electric dust collector comprises a machine shell 1, an electric cylinder 2, a motor 3, a connecting shaft 4, a dust removal device 5, a brush plate 51, a water scraping plate 52, a sponge block 521, a brush plate 522, a water squeezing block 53, an air inlet mesh enclosure 61, an air outlet mesh enclosure 62, a clutch device 7, a pressing block 71, an installation plate 8, a drainage device 9, a drainage box 91, a pull wire 92, a conical block 93 and a floating ball 94.
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 to 5, the exhaust fan of the present invention includes a casing 1, an electric cylinder 2, a motor 3, fan blades, a connecting shaft 4, a dust removing device 5, an air inlet mesh enclosure 61, an air outlet mesh enclosure 62, a clutch device 7, an installation plate 8 and a drainage device 9; the machine shell 1 is cylindrical, the inner wall of the left end of the machine shell 1 is fixedly connected with an air inlet mesh enclosure 61, and the air inlet mesh enclosure 61 is used for filtering dust at an air outlet; the inner wall of the right end of the machine case 1 is fixedly connected with an air outlet net cover 62, and the air outlet net cover 62 plays a role in protecting a user; a first opening is formed in the center of the air outlet net cover 62; the electric cylinder 2 is fixedly arranged in the first opening through an installation plate 8; the non-output end of the motor 3 is fixedly connected with the end part of the cylinder rod of the electric cylinder 2; the middle part of the rotating shaft of the motor 3 is provided with fan blades, and the end head of the rotating shaft of the motor 3 is provided with a clutch device 7 which is matched and connected with the dust removal device 5; the clutch device 7 is used for cutting off or combining power between the motor 3 and the dust removal device 5, the power of the clutch device 7 comes to the electric cylinder 2, and meanwhile, the strength and the movement stability of the electric cylinder 2 also meet the use requirements, so that the reliability of the clutch device 7 is ensured; the dust removal device 5 is rotatably arranged at the center of the air inlet mesh enclosure 61 through a connecting shaft 4; the dust removal device 5 is used for cleaning the air inlet mesh enclosure 61; a spray pipe is arranged above the air inlet mesh enclosure 61 and used for spraying water to the air inlet mesh enclosure 61 and flushing dust on the air inlet mesh enclosure 61, and a drainage device 9 is arranged below the air inlet mesh enclosure 61; wherein the content of the first and second substances,
the clutch device 7 comprises a pressing block 71 and a first spring; one end of a rotating shaft of the motor 3 is provided with a mounting hole; the pressing block 71 is slidably mounted in the mounting hole through a first spring; the section of the pressing block 71 is arched, and the arched section of the pressing block 71 is parallel to the axis of the rotating shaft of the motor 3; one end of the connecting shaft 4 close to the clutch device 7 is provided with an inserting hole; the inner wall of the plug hole is provided with a connecting groove matched with the pressing block 71; the rotating shaft of the motor 3 can be inserted into the inserting hole; the pressing block 71 is used for connecting the rotating shaft of the motor 3 and the connecting shaft 4; the section of the pressing block 71 is arched, so that the rotating shaft of the motor 3 can be conveniently inserted into the inserting hole, and the two side surfaces of the pressing block 71 are planes and can be attached to the side surfaces of the connecting grooves in the inserting hole to transmit torque; after the rotating shaft of the motor 3 is inserted into the inserting hole, the pressing block 71 is compressed in the mounting hole, the extending length of the electric cylinder 2 is adjustable, the accurate axial position of the rotating shaft of the motor 3 inserted into the inserting hole is ensured, the pressing block 71 is rotated to the position corresponding to the connecting groove under the driving of the rotation of the shaft of the motor 3, and the pressing block 71 is popped out to be just matched with the connecting groove under the action of the elastic force of a spring I in the mounting hole, so that the transmission of torque is realized; this clutch 7 has realized under the motor 3 circumstances of operation, and dust collector 5 can be automatic connect and break away from, accomplishes the work of automatic clearance exhaust fan, has solved the exhaust fan and has installed too high, dismantle the trouble, the difficult problem of clearing up in air inlet screen panel 61 dead angle, has saved artifical clearance cost and clearance time simultaneously.
As an embodiment of the present invention, the dust removing device 5 includes a brush plate 51, a wiper plate 52, and a wringing block 53, the brush plate 51 is disposed outside the air intake mesh enclosure 61, and the brush plate 51 is used for cleaning the outside of the air intake mesh enclosure 61; the water scraping plate 52 is arranged on the inner side of the air inlet mesh enclosure 61, and the water scraping plate 52 is used for cleaning the inner side of the air inlet mesh enclosure 61; the water squeezing block 53 is arranged below the inner side of the air inlet mesh enclosure 61, and the water squeezing block 53 is used for being matched with the sponge block 521 on the wiper plate 52, so that the sewage on the sponge block 521 is removed; the brush plate 51 is fixedly connected with the wiper plate 52 through a connecting shaft 4; the wiper blade 52 is disc-shaped, and the wiper blade 52 is eccentrically arranged on the connecting shaft 4; the surface of one side of the wiper plate 52 close to the air inlet mesh enclosure 61 is fixedly provided with sponge blocks 521 which are radial at intervals, a brush plate 522 is arranged between the adjacent sponge blocks 521, and the brush plates 522 and the sponge blocks 521 are alternately arranged, so that dust on the air inlet mesh enclosure 61 can be effectively removed, and water stain is not left after dust removal; the brush plate 522 is provided with a via hole, and the via hole reduces the wind shielding area of the wiper plate 52 and ensures the air exhaust effect of the exhaust fan.
As an embodiment of the present invention, the brush plate 522 is fixedly connected to the wiper plate 52 through a second spring, and the second spring is fixedly installed at the bottom of the brush plate 522, so as to ensure that the brush plate 522 can effectively brush off dust on the surface of the air intake mesh enclosure 61 even when the air intake mesh enclosure is uneven.
As an embodiment of the present invention, the brush plate 522 is fixedly connected to the wiper plate 52; the sponge blocks 521 and the brush plates 522 are arranged in a staggered mode, and the cross sections of the whole sponge blocks 521 and the whole brush plates 522 are in a step shape; the brush plate 522 is simple in structure, and the stepped arrangement mode achieves layer-by-layer brushing on the surface of the air inlet mesh enclosure 61 from shallow to deep, so that certain stubborn stains are guaranteed to be removed.
As an embodiment of the present invention, the water squeezing block 53 is fixedly connected to the inner side surface below the air intake net cover 61 and arranged below the air intake net cover to ensure that the squeezed sewage can immediately flow into the drainage device 9 away from the water scraping plate 52; the water squeezing blocks 53 are arranged in two rows in parallel along the vertical direction, the two rows of water squeezing blocks 53 are staggered with each other in the vertical direction, the arrangement mode of the two rows in a staggered manner enables water squeezed by one water squeezing block 53 in one row to be used for water saving again by the water squeezing block 53 staggered with the water squeezing block in the other row, and the like, so that the water saving effect is ensured.
As an embodiment of the present invention, the drainage device 9 includes a drainage box 91, a pull wire 92, a conical block 93, and a floating ball 94, the drainage box 91 is fixedly connected to the bottom of the air intake mesh enclosure 61, and a drainage hole is formed at the bottom of the drainage box 91; a conical block 93 is fixedly connected below the floating ball 94; the conical block 93 is connected with the inner wall of the drain hole through a pull wire 92; the sewage enters the drainage tank 91, and when the buoyancy of the floating ball 94 is smaller than the gravity of the floating ball 94 and the conical block 93, the drainage tank 91 stores the water and does not drain the water; along with the increase of the water level, when the buoyancy force borne by the floating ball 94 is larger than the gravity of the floating ball 94 and the conical block 93, the floating ball 94 drives the conical block 93 to ascend, the water outlet is opened, and intermittent water drainage is realized; dust in the sewage easily blocks the drain hole, and the tapered block 93 removes the adhesion of the drain hole every time it falls.
When the electric air-discharging device works, after the motor 3 exhausts air for a period of time, the electric cylinder 2 is automatically pushed forwards to drive the clutch device 7 at the end part of the rotating shaft of the motor 3 to be inserted into the inserting hole on the connecting shaft 4, and the dust removal device 5 is connected with the motor through the clutch device 7 under the action of the pressing block 71; under the driving of the motor, the brush plate 51 and the wiper plate 52 in the dust collector 5 respectively brush the inner and outer side surfaces of the air inlet mesh enclosure 61; when the dust removing device 5 works, the spray pipe positioned above the air inlet mesh enclosure 61 starts to spray water; after the water scraping plate 52 removes dust and sewage on the air inlet mesh enclosure 61, the water scraping plate rotates to the lower part and is mutually extruded with the water squeezing block 53 at the lower part, and the sewage absorbed in the sponge block 521 is discharged; the sewage flows into the drainage tank 91, and when the buoyancy of the floating ball 94 is smaller than the gravity of the floating ball 94 and the conical block 93, the drainage tank 91 stores the water and does not drain the water; along with the increase of the water level, when the buoyancy force borne by the floating ball 94 is larger than the gravity of the floating ball 94 and the conical block 93, the floating ball 94 drives the conical block 93 to ascend, the water outlet is opened, and intermittent water drainage is realized; after the dust removal device 5 operates for a period of time, the electric cylinder 2 automatically contracts, the clutch device 7 is disconnected, the spray pipe stops spraying water, the floating ball 94 in the drainage device 9 slowly falls along with the falling of the water level until the floating ball 94 blocks the drainage hole again, and drainage is stopped; and (5) waiting for the start of the next set dust removal, and circulating the actions.
The foregoing illustrates and describes the principles, general features, and advantages of the present invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are described in the specification and illustrated only to illustrate the principle of the present invention, but that various changes and modifications may be made therein without departing from the spirit and scope of the present invention, which fall within the scope of the invention as claimed. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (6)
1. An exhaust fan, characterized by: comprises a casing (1), an electric cylinder (2), a motor (3), fan blades, a connecting shaft (4), a dust removal device (5), an air inlet mesh enclosure (61), an air outlet mesh enclosure (62), a clutch device (7), a mounting plate (8) and a drainage device (9); the machine shell (1) is cylindrical, the inner wall of the left end of the machine shell (1) is fixedly connected with an air inlet mesh enclosure (61), and the inner wall of the right end of the machine shell (1) is fixedly connected with an air outlet mesh enclosure (62); a first opening is formed in the center of the air outlet net cover (62); the electric cylinder (2) is fixedly arranged in the first opening through an installation plate (8); the non-output end of the motor (3) is fixedly connected with the end part of the cylinder rod of the electric cylinder (2); the middle part of a rotating shaft of the motor (3) is provided with fan blades, and the end head of the rotating shaft of the motor (3) is provided with a clutch device (7) which is matched and connected with the dust removal device (5); the clutch device (7) is used for cutting off or combining power between the motor (3) and the dust removal device (5); the dust removal device (5) is rotatably arranged at the center of the air inlet mesh enclosure (61) through a connecting shaft (4); the dust removal device (5) is used for cleaning the air inlet mesh enclosure (61); a spray pipe is arranged above the air inlet mesh enclosure (61), and a drainage device (9) is arranged below the air inlet mesh enclosure (61); wherein the content of the first and second substances,
the clutch device (7) comprises a pressing block (71) and a first spring; one end of a rotating shaft of the motor (3) is provided with a mounting hole; the pressing block (71) is slidably mounted in the mounting hole through a first spring; the section of the pressing block (71) is arched, and the arched section of the pressing block (71) is parallel to the axis of the rotating shaft of the motor (3); one end of the connecting shaft (4) close to the clutch device (7) is provided with an inserting hole; the inner wall of the plug hole is provided with a connecting groove matched with the pressing block (71); the rotating shaft of the motor (3) can be inserted into the inserting hole; the pressing block (71) is used for connecting a rotating shaft of the motor (3) and the connecting shaft (4).
2. An exhaust fan in accordance with claim 1, wherein: the dust removal device (5) comprises a brush plate (51), a water scraping plate (52) and a water squeezing block (53), wherein the brush plate (51) is arranged on the outer side of the air inlet mesh enclosure (61); the water scraping plate (52) is arranged on the inner side of the air inlet mesh enclosure (61); the water squeezing block (53) is arranged below the inner side of the air inlet mesh enclosure (61); the brush plate (51) is fixedly connected with the water scraping plate (52) through a connecting shaft (4); the water scraping plate (52) is disc-shaped, and the water scraping plate (52) is eccentrically arranged on the connecting shaft (4); sponge blocks (521) in a radial shape at intervals are fixedly arranged on the surface of one side, close to the air inlet mesh enclosure (61), of the water scraping plate (52), and a brush plate (522) is arranged between every two adjacent sponge blocks (521); the brush plate (522) is provided with a via hole.
3. An exhaust fan in accordance with claim 2, wherein: the brush plate (522) is fixedly connected to the wiper plate (52) through a second spring.
4. An exhaust fan in accordance with claim 2, wherein: the brush plate (522) is fixedly connected to the wiper plate (52); the sponge blocks (521) and the brush plates (522) are arranged in a staggered mode, and the cross sections of the sponge blocks (521) and the brush plates (522) are stepped.
5. An exhaust fan in accordance with claim 2, wherein: the water squeezing block (53) is fixedly connected with the inner side surface below the air inlet mesh enclosure (61); the water squeezing blocks (53) are arranged in two rows in parallel along the vertical direction, and the two rows of water squeezing blocks (53) are staggered in the vertical direction.
6. An exhaust fan in accordance with claim 1, wherein: the drainage device (9) comprises a drainage box (91), a stay wire (92), a conical block (93) and a floating ball (94), wherein the drainage box (91) is fixedly connected to the bottom of the air inlet mesh enclosure (61), and a drainage hole is formed in the bottom of the drainage box (91); a conical block (93) is fixedly connected below the floating ball (94); the conical block (93) is connected with the inner wall of the drain hole through a pull wire (92).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810283661.8A CN108591089B (en) | 2018-04-02 | 2018-04-02 | Exhaust fan |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810283661.8A CN108591089B (en) | 2018-04-02 | 2018-04-02 | Exhaust fan |
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| Publication Number | Publication Date |
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| CN108591089A CN108591089A (en) | 2018-09-28 |
| CN108591089B true CN108591089B (en) | 2020-08-07 |
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| CN201810283661.8A Expired - Fee Related CN108591089B (en) | 2018-04-02 | 2018-04-02 | Exhaust fan |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| JPH0510291A (en) * | 1991-07-02 | 1993-01-19 | Matsushita Electric Ind Co Ltd | Fan and ventilator |
| CN2326759Y (en) * | 1997-11-11 | 1999-06-30 | 丘家以 | Exhausting fan convenient for washing used in kitchen |
| JP2005194992A (en) * | 2004-01-07 | 2005-07-21 | Makoto Fukada | Desktop type refreshing breeze fan |
| CN205207285U (en) * | 2015-12-14 | 2016-05-04 | 重庆大顺电器有限公司 | Fan cleaning device |
| CN106122052A (en) * | 2016-06-24 | 2016-11-16 | 张家港市众鑫风机有限公司 | A kind of exhaust blower of band automatic cleaning apparatus |
| CN107781194A (en) * | 2017-11-24 | 2018-03-09 | 安徽美自然环境科技有限公司 | A kind of solar energy blower fan for carrying dedusting function and dust pelletizing system |
-
2018
- 2018-04-02 CN CN201810283661.8A patent/CN108591089B/en not_active Expired - Fee Related
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| Publication number | Publication date |
|---|---|
| CN108591089A (en) | 2018-09-28 |
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