CN116717485B - Self-cleaning exhaust fan - Google Patents
Self-cleaning exhaust fan Download PDFInfo
- Publication number
- CN116717485B CN116717485B CN202310881681.6A CN202310881681A CN116717485B CN 116717485 B CN116717485 B CN 116717485B CN 202310881681 A CN202310881681 A CN 202310881681A CN 116717485 B CN116717485 B CN 116717485B
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- Prior art keywords
- liquid storage
- storage tank
- shell
- exhaust fan
- filter screen
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- 238000004140 cleaning Methods 0.000 title claims abstract description 67
- 239000007788 liquid Substances 0.000 claims abstract description 133
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 51
- 239000007921 spray Substances 0.000 claims abstract description 26
- 230000002093 peripheral effect Effects 0.000 claims abstract description 10
- 238000002955 isolation Methods 0.000 claims description 22
- 238000003825 pressing Methods 0.000 claims description 12
- 241000220317 Rosa Species 0.000 claims description 8
- 238000005507 spraying Methods 0.000 claims description 7
- 230000000149 penetrating effect Effects 0.000 claims description 2
- 230000000737 periodic effect Effects 0.000 abstract description 3
- 230000000694 effects Effects 0.000 description 8
- 238000005192 partition Methods 0.000 description 5
- 230000000903 blocking effect Effects 0.000 description 3
- 235000019504 cigarettes Nutrition 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 238000013459 approach Methods 0.000 description 2
- 238000003780 insertion Methods 0.000 description 2
- 230000037431 insertion Effects 0.000 description 2
- 239000003595 mist Substances 0.000 description 2
- 239000011148 porous material Substances 0.000 description 2
- 241000886569 Cyprogenia stegaria Species 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012856 packing Methods 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 239000000779 smoke Substances 0.000 description 1
- 230000001502 supplementing effect Effects 0.000 description 1
- 238000009423 ventilation Methods 0.000 description 1
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
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Ventilation (AREA)
Abstract
The invention belongs to the technical field of exhaust fans, in particular to a self-cleaning exhaust fan, which comprises: the shell is a shell of the integral exhaust fan, and a fan assembly is arranged in the shell; the filter screen is positioned at the air inlet of the shell, and a space exists between the surface of the filter screen and the end part of the air inlet of the shell; the liquid storage tanks are provided with a plurality of annular peripheral surfaces which are uniformly arranged on the shell; the guide pipe is arranged on the surface of the liquid storage tank and is communicated with the liquid storage tank; the water suction pump is arranged at the end part of the guide pipe far away from the liquid storage tank and is communicated with the guide pipe; when the self-cleaning exhaust fan is used, the cleaning liquid in the liquid storage tank is pumped out through the guide pipe by the water pump and then sprayed into the machine shell through the water spray head, the filter screen is washed along with the movement of air flow when the exhaust fan works, and the cleaning liquid gradually removes oily dirt attached to the surface of the filter screen, so that the automatic cleaning of the exhaust fan is completed; compare in through artifical periodic cleaning, comparatively convenient, and use manpower sparingly.
Description
Technical Field
The invention belongs to the technical field of exhaust fans, and particularly relates to a self-cleaning exhaust fan.
Background
The ventilation effect of the exhaust fan is achieved by indoor or outdoor exhaust, and the working principle is that the motor drives the fan impeller to rotate so as to achieve the effect of air suction or exhaust on air; at present, the exhaust fan is widely applied to scenes such as factories, office buildings, kitchens and the like; the indoor dirty air can be removed by using the exhaust fan, and the temperature, humidity and feel effects can be regulated
In the daily operation of mill, often produce steam and dirty cigarette because of the operation of lathe, these steam and dirty cigarette can rise upwards, finally gather near the indoor roof of factory building, therefore the staff installs the exhaust fan at the top of factory building, the exhaust fan draws steam and dirty cigarette out the factory building, and when in actual use, in order to avoid the foreign matter to be inhaled into the exhaust fan, need set up the filter screen in the air intake department of exhaust fan, after long-time use, the filter screen surface can be attached with the greasy dirt, the greasy dirt can block up the filter screen gradually, influence the exhaust fan and use, so the staff is required to wash the filter screen regularly, it is comparatively inconvenient.
Therefore, the invention provides a self-cleaning exhaust fan.
Disclosure of Invention
In order to overcome the deficiencies of the prior art, at least one technical problem presented in the background art is solved.
The technical scheme adopted for solving the technical problems is as follows: the invention relates to a self-cleaning exhaust fan, which comprises:
the shell is a shell of the integral exhaust fan, and a fan assembly is arranged in the shell;
the filter screen is positioned at the air inlet of the shell, and a space exists between the surface of the filter screen and the end part of the air inlet of the shell;
the liquid storage tanks are provided with a plurality of annular peripheral surfaces which are uniformly arranged on the shell;
the guide pipe is arranged on the surface of the liquid storage tank and is communicated with the liquid storage tank;
the water suction pump is arranged at the end part of the guide pipe far away from the liquid storage tank and is communicated with the guide pipe;
the water spraying head is arranged on the bottom surface of the water suction pump and is communicated with the water outlet of the water suction pump;
the bearing holes are provided with a plurality of annular peripheral surfaces which are uniformly formed on the shell, and the orifices are positioned between the end face of the air inlet of the shell and the filter screen; the water spraying head is inserted into the receiving hole, and the spraying outlet of the water spraying head points to the inside of the shell;
the guide rod is vertically arranged on one surface of the filter screen, which faces the center of the shell;
the support plate is arranged on the inner wall of the shell and positioned between the fan assembly and the filter screen, and the guide rod penetrates through the support plate;
the first bracket is fixedly connected to one surface of the supporting plate, which is far away from the filter screen;
the first trigger switch is arranged on the surface of the first bracket, and a gap exists between the first trigger switch and the end part of the guide rod; when the guide rod moves towards the direction close to the first trigger switch, the pressed button of the first trigger switch can be pressed; the water pump is controlled by a first trigger switch; a limiting spring is arranged between the guide rod and the first bracket.
Preferably, an atomizing head is inserted into the spray outlet of the water spray head.
Preferably, a plurality of vibrators are uniformly arranged on the annular peripheral surface of the shell, and the opening and closing of the vibrators are controlled by a first trigger switch.
Preferably, an isolation cover is arranged on one surface, far away from the filter screen, of the support plate, and the isolation cover is matched with the support plate to cover the first support and the first trigger switch from the outside.
Preferably, an isolation cylinder is arranged on one surface of the support plate, which is close to the filter plate, the isolation cylinder is sleeved on the guide rod, and the end part of the isolation cylinder is in sliding connection with the surface of the guide rod.
Preferably, a pair of ejector rods are inserted through the side face of the liquid storage tank, a liquid pushing plate is arranged at one end of the ejector rods, which is positioned in the liquid storage tank, the size of the liquid pushing plate is matched with that of the liquid storage tank, and cleaning liquid in the liquid storage tank is extruded along with the movement of the liquid pushing plate in the liquid storage tank; the side surface of the part of the ejector rod, which is positioned outside the liquid storage tank, is provided with a friction wheel, the top surface of the friction wheel is provided with a driving motor, and the opening and closing of the driving motor is controlled by a first trigger switch; a second bracket is arranged between the driving motor and the liquid storage tank, and the ejector rod is driven by friction force between the ejector rod and the friction wheel when the friction wheel rotates.
Preferably, the end part of the ejector rod, which is positioned outside the liquid storage tank, is fixedly connected with a pressing plate, a second trigger switch is arranged on the side surface of the liquid storage tank, an early warning device is arranged in the exhaust fan, and the early warning device is controlled to be opened and closed by the second trigger switch; when the ejector rod moves to the deepest part of the liquid storage tank, the pressing plate presses the pressed button of the second trigger switch.
Preferably, the outside of the driving motor is sleeved with an isolation sleeve; the output end of the driving motor passes through the isolation sleeve.
Preferably, a plurality of grooves are uniformly formed in the side face of the friction wheel, friction blocks are inserted into the grooves, and extension springs are arranged between the friction blocks and the inner walls of the grooves.
Preferably, the baffle is installed to the air outlet of casing, the surface through connection of baffle has out the tuber pipe, the one end that the baffle was kept away from to the tuber pipe is provided with the rose box, the gas outlet has been seted up to the top surface of rose box, the inside packing of rose box has liquid water, drives the tip that goes out the tuber pipe and inserts the inside of rose box internal liquid water.
The beneficial effects of the invention are as follows:
1. according to the self-cleaning exhaust fan, the filter screen is arranged at the air inlet of the exhaust fan shell, when the filter screen is blocked to a certain extent by greasy dirt, the first trigger switch starts the water suction pump, the cleaning liquid in the liquid storage tank is pumped out through the guide pipe by the water suction pump and then sprayed into the shell through the water spray head, the filter screen is washed by the cleaning liquid along with the movement of air flow when the exhaust fan works, oily dirt attached to the surface of the filter screen is gradually removed by the cleaning liquid, then the cleaning liquid is discharged through the air outlet of the shell, the blocking on the surface of the filter screen is removed, the guide rod is driven to reset and move by the filter screen under the action of the limiting spring, the starting time of the water suction pump is ended, and the automatic cleaning of the exhaust fan is completed; compare in through artifical periodic cleaning, comparatively convenient, and use manpower sparingly.
2. According to the self-cleaning exhaust fan, the vibrator is arranged outside the machine shell, the vibrator is controlled to be started when the first trigger switch is pressed and the button is pressed, the starting time is set to be a period of time, namely, when the first trigger switch is pressed and the button is not pressed any more, the vibrator can be continuously started for a period of time, when the cleaning liquid and the filter screen are released to clean oily dirt, the vibrator is started to cause the vibration of the exhaust fan, the filter screen is synchronously vibrated, the oily dirt is separated from the filter screen, and the cleaning process is further optimized.
Drawings
The invention is further described below with reference to the accompanying drawings.
FIG. 1 is a perspective view of the present invention;
FIG. 2 is a schematic top view of the reservoir of the present invention;
FIG. 3 is a schematic view of the structure of the sprinkler head of the present invention;
FIG. 4 is a schematic illustration of a housing of the present invention;
FIG. 5 is a schematic diagram of a filter screen of the present invention;
FIG. 6 is an enlarged schematic view of portion A of FIG. 5 in accordance with the present invention;
FIG. 7 is a schematic view of the structure of the support plate of the present invention;
FIG. 8 is a schematic view of the location of a partition on a housing of the present invention;
FIG. 9 is an enlarged schematic view of portion B of FIG. 8 in accordance with the present invention;
FIG. 10 is a schematic partial cross-sectional view of a liquid reservoir of the present invention;
FIG. 11 is an enlarged schematic view of portion C of FIG. 10 in accordance with the invention;
fig. 12 is a schematic view of a friction wheel of the present invention.
In the figure: 1. a housing; 11. a filter screen; 12. a vibrator; 2. a liquid storage tank; 21. a conduit; 22. a water pump; 23. a water spray head; 231. an atomizing head; 24. a receiving hole; 3. a guide rod; 31. a support plate; 32. a first bracket; 33. a first trigger switch; 34. an isolation cylinder; 35. an isolation cover; 4. a push rod; 41. a liquid pushing plate; 42. a friction wheel; 421. a friction block; 43. a driving motor; 44. a second bracket; 45. a second trigger switch; 46. a pressing plate; 5. a partition plate; 51. an air outlet pipe; 52. a filter box.
Detailed Description
The invention is further described in connection with the following detailed description in order to make the technical means, the creation characteristics, the achievement of the purpose and the effect of the invention easy to understand.
As shown in fig. 1 to 6, the self-cleaning exhaust fan according to the embodiment of the present invention includes:
the casing 1 is a casing of the integral exhaust fan, and a fan assembly is arranged in the casing;
the filter screen 11 is positioned at the air inlet of the shell 1, and a space exists between the surface of the filter screen and the end part of the air inlet of the shell 1;
the liquid storage tanks 2 are provided with a plurality of annular peripheral surfaces which are uniformly arranged on the shell 1;
a conduit 21 which is attached to the surface of the tank 2 and communicates with the tank 2;
a suction pump 22 which is mounted at the end of the pipe 21 away from the tank 2 and communicates with the pipe 21;
a water spray head 23 mounted on the bottom surface of the water pump 22 and communicated with the water outlet of the water pump 22;
the bearing holes 24 are provided with a plurality of annular peripheral surfaces which are uniformly formed on the shell 1, and the orifices are positioned between the end face of the air inlet of the shell 1 and the filter screen 11; the spray head 23 is inserted into the receiving hole 24, and the spray outlet of the spray head 23 is directed to the inside of the casing 1;
the guide rod 3 is vertically arranged on one surface of the filter screen 11 facing the center of the shell 1;
a supporting plate 31 installed on the inner wall of the casing 1 and located between the fan assembly and the filter screen, and a guide rod 3 penetrating the supporting plate 31;
the first bracket 32 is fixedly connected to one surface of the supporting plate 31 far away from the filter screen 11;
a first trigger switch 33 mounted on the surface of the first bracket 32 and having a gap with the end of the guide rod 3; when the guide rod 3 moves in a direction approaching the first trigger switch 33, the pressed button of the first trigger switch 33 can be pressed; the water pump 22 is controlled to be started and stopped by a first trigger switch 33; a limit spring is arranged between the guide rod 3 and the first bracket 32;
when the embodiment of the invention is used, the exhaust fan is started, the fan assembly rotates in the machine shell 1, the machine shell 1 sucks air in a factory building, then the air is exhausted through the air outlet at the other side of the machine shell 1, oily dirt in the air is adhered to the surface of the filter screen 11 when the air dirt passes through the filter screen 11, and the pores of the filter screen 11 are gradually blocked along with the use, and when the blocking degree of the filter screen 11 is gradually increased, the impact force of air flow generated by the air extracted by the exhaust fan on the filter screen 11 is synchronously increased; the filter screen 11 is slidably connected in the casing 1, the side guide rod 3 passes through the supporting plate 31, the guide rod 3 is connected with the first bracket 32 fixed on the supporting plate 31 through the limiting spring, therefore, the filter screen 11 is limited at first, the limiting spring is compressed along with the gradual increase of the impact force, the filter screen 11 drives the guide rod 3 to gradually move, the guide rod 3 gradually approaches the first trigger switch 33 until the pressed button of the first trigger switch 33 is pressed, the water suction pump 22 is controlled to start when the pressed button of the first trigger switch 33 is pressed, the water suction pump 22 is still continuously started for a period of time when the pressed button of the first trigger switch 33 is not pressed any more, the water suction pump 22 pumps cleaning liquid in the liquid storage tank 2 into the water spray head 23 through the guide pipe 21, the water spray head 23 sprays the cleaning liquid into the casing 1, the air flow moves along with the operation of the exhaust fan to wash the filter screen 11, the oily dirt adhered on the surface of the filter screen 11 is gradually removed, then the blockage on the surface of the filter screen 11 is removed through the exhaust outlet of the casing 1, the reset movement of the guide rod 3 is driven by the effect 11 of the limiting spring, and the water suction pump 22 is started for a period of time is automatically ended, and the exhaust fan is cleaned; compare in through artifical periodic cleaning, comparatively convenient, and use manpower sparingly.
As shown in fig. 3, an atomizing head 231 is inserted into the spray outlet of the spray head 23; when the spray head 23 sprays the cleaning liquid, the cleaning liquid needs to pass through the atomizing head 231, and the atomizing head 231 sprays the cleaning liquid in a mist form, so that the contact area between the cleaning liquid and the filter screen 11 is increased, and the cleaning process is facilitated.
As shown in fig. 1, a plurality of vibrators 12 are uniformly mounted on the annular peripheral surface of the casing 1, and the opening and closing of the vibrators 12 are controlled by a first trigger switch 33; when the first trigger switch 33 is pressed, the vibrator 12 is controlled to start, and the starting time is set to be a period of time, namely, when the first trigger switch 33 is not pressed any more, the vibrator 12 is still continuously started for a period of time, and when the cleaning liquid and the filter screen 11 are released to clean oily dirt, the vibrator 12 starts to cause the exhaust fan to oscillate, the filter screen 11 oscillates synchronously, the oily dirt is separated from the filter screen 11, and the cleaning process is further optimized.
As shown in fig. 7, a shielding cover 35 is disposed on a surface of the supporting plate 31 away from the filter screen 11, and the shielding cover 35 cooperates with the supporting plate 31 to shield the first bracket 32 and the first trigger switch 33 from the outside; when the exhaust fan is used, the isolation cover 35 isolates the first trigger switch 33, so that oil stains are prevented from being damaged by contacting with the first trigger switch.
As shown in fig. 7, a separating tube 34 is arranged on one surface of the supporting plate 31 near the filter plate 11, the separating tube 34 is sleeved on the guide rod 3, and the end part is in sliding connection with the surface of the guide rod 3; when the guide rod 3 and support plate 31 plug-in gap is plugged by the isolating cylinder 34, oil stains are prevented from entering the plug-in gap, friction between the guide rod 3 and the support plate 31 is increased, and the use effect of the guide rod 3 is ensured.
As shown in fig. 9 to 11, a pair of push rods 4 are inserted through the side surface of the liquid storage tank 2, a liquid pushing plate 41 is mounted at one end of the push rods 4 positioned in the liquid storage tank 2, the size of the liquid pushing plate 41 is matched with that of the liquid storage tank 2, and the cleaning liquid in the liquid storage tank 2 is extruded along with the movement of the liquid pushing plate 41 in the liquid storage tank 2; the side surface of the part of the ejector rod 4 positioned outside the liquid storage tank 2 is provided with a friction wheel 42, the top surface of the friction wheel 42 is provided with a driving motor 43, and the opening and closing of the driving motor 43 is controlled by a first trigger switch 33; a second bracket 44 is arranged between the driving motor 43 and the liquid storage tank 2, and the ejector rod 4 is driven by the friction force between the ejector rod and the friction wheel 42 when the friction wheel 42 rotates; when the first trigger switch 33 is pressed by the pressing button, the driving motor 43 is started, the starting time is set to be a period of time, namely, when the driving motor 43 is pressed by the pressing button and is not pressed any more, the driving motor 43 still can continuously start for a period of time, the driving motor 43 drives the friction wheel 42 to rotate, the push rod 4 is driven to move towards the inside of the liquid storage tank 2 through friction force when the friction wheel 42 rotates, the liquid pushing plate 41 in the liquid storage tank 2 is used for pressing cleaning liquid in the liquid storage tank 2 through the action of the push rod 4, the cleaning liquid keeps a certain hydraulic pressure, and the cleaning liquid is flushed to the communicating position of the guide pipe 21 and the liquid storage tank 2 when being pressed, so as the inner space of the liquid storage tank 2 is compressed, the cleaning liquid in the liquid storage tank 2 can be completely used, the liquid pushing plate 41 is contacted with the inner wall of the liquid storage tank 2, the cleaning liquid attached to the inner wall of the liquid storage tank 2 is pushed, and the cleaning liquid is prevented from continuously remaining in the liquid storage tank 2, and peculiar smell is generated.
The end part of the ejector rod 4 positioned outside the liquid storage tank 2 is fixedly connected with a pressing plate 46, the side surface of the liquid storage tank 2 is provided with a second trigger switch 45, and when the ejector rod 4 moves to the deepest part of the liquid storage tank 2, the pressing plate 46 presses a pressed button of the second trigger switch 45; when the cleaning liquid in the liquid storage tank 2 is used, the ejector rod 4 moves to the deepest part of the liquid storage tank 2, the ejector rod 4 drives the pressing plate 46 to press the pressed button of the second trigger switch 45, an early warning device is arranged in the exhaust fan, and the early warning device is controlled to be opened and closed through the second trigger switch 45, so that the early warning device sends an early warning signal to a receiver reserved by a worker, and the worker is informed of supplementing the cleaning liquid for the liquid storage tank 2.
An isolation sleeve is sleeved outside the driving motor 43; the output end of the driving motor 43 passes through the isolation sleeve; the driving motor 43 isolates the self shell from the outside through the isolating sleeve, so that the driving motor 43 is protected from being immersed and damaged by rainwater.
As shown in fig. 12, a plurality of grooves are uniformly formed on the side surface of the friction wheel 42, friction blocks 421 are inserted into the grooves, and tension springs are arranged between the friction blocks 421 and the inner walls of the grooves; when the friction wheel 42 rotates, the friction blocks 421 in the side grooves are thrown out through centrifugal force and connected through the extension springs, the friction blocks 421 improve the contact friction range with the ejector rod 4, and therefore friction effects can be continuously generated on the ejector rod 4 when the side surfaces of the friction wheel 42 are worn.
As shown in fig. 8, a partition plate 5 is installed at the air outlet of the casing 1, an air outlet pipe 51 is connected through the surface of the partition plate 5, a filter box 52 is arranged at one end of the air outlet pipe 51 far away from the partition plate 5, an air outlet is formed at the top surface of the filter box 52, liquid water is filled in the filter box 52, and the end part of the air outlet pipe 51 is driven to be inserted into the liquid water in the filter box 52; exhaust fan exhaust air enters the filter box 52 through the air outlet pipe 51, oil dirt carried in the air during cleaning enters liquid water in the filter box 52, then the air is discharged through an air outlet on the top surface of the filter box 52, and the air with the oil dirt is placed to fall on the roof of a factory building, so that pollution is caused.
When the exhaust fan is in operation, the fan assembly rotates in the machine shell 1, the machine shell 1 sucks air in a factory building, then the air is exhausted through an air outlet at the other side of the machine shell 1, oily dirt in the air is adhered to the surface of the filter screen 11 when the air smoke passes through the filter screen 11, and the pores of the filter screen 11 are gradually blocked along with use, and when the blocking degree of the filter screen 11 is gradually increased, the impact force of air flow generated by the air suction of the exhaust fan on the filter screen 11 is synchronously increased; the filter screen 11 is slidably connected in the casing 1, the side guide rod 3 passes through the supporting plate 31, the guide rod 3 is connected with the first bracket 32 fixed on the supporting plate 31 through the limiting spring, therefore, the filter screen 11 is limited at first, the limiting spring is compressed along with the gradual increase of the impact force, the filter screen 11 drives the guide rod 3 to gradually move, the guide rod 3 gradually approaches the first trigger switch 33 until the pressed button of the first trigger switch 33 is pressed, the water suction pump 22 is controlled to start when the pressed button of the first trigger switch 33 is pressed, the water suction pump 22 is still continuously started for a period of time when the pressed button of the first trigger switch 33 is not pressed any more, the water suction pump 22 pumps cleaning liquid in the liquid storage tank 2 into the water spray head 23 through the guide pipe 21, the water spray head 23 sprays the cleaning liquid into the casing 1, the air flow moves along with the operation of the exhaust fan to wash the filter screen 11, the oily dirt adhered on the surface of the filter screen 11 is gradually removed, then the blockage on the surface of the filter screen 11 is removed through the exhaust outlet of the casing 1, the reset movement of the guide rod 3 is driven by the effect 11 of the limiting spring, and the water suction pump 22 is started for a period of time is automatically ended, and the exhaust fan is cleaned; wherein when the spray head 23 sprays the cleaning liquid, the cleaning liquid needs to pass through the atomizing head 231, and the atomizing head 231 sprays the cleaning liquid in a mist form, so that the contact area between the cleaning liquid and the filter screen 11 is increased; when the first trigger switch 33 is pressed, the vibrator 12 is controlled to start, and the starting time is set to be a period of time, that is, when the first trigger switch 33 is not pressed any more, the vibrator 12 is still continuously started for a period of time, and when the cleaning liquid and the filter screen 11 are released to clean oily dirt, the vibrator 12 starts to cause the exhaust fan to oscillate, and the filter screen 11 oscillates synchronously.
When the exhaust fan is used, the isolation cover 35 isolates the first trigger switch 33, so that oil stains are prevented from being damaged by contacting with the first trigger switch; when the device is used, the isolation cylinder 34 can plug the insertion gap between the guide rod 3 and the support plate 31, so that oil stains are prevented from entering the insertion gap, and the friction force between the guide rod 3 and the support plate 31 is increased; when the first trigger switch 33 is pressed, the driving motor 43 is started, the starting time is set to be a period of time, namely, when the driving motor 43 is pressed, the button is not pressed any more, the driving motor 43 still continuously starts for a period of time, the driving motor 43 drives the friction wheel 42 to rotate, the push rod 4 is driven to move towards the inside of the liquid storage tank 2 through friction force when the friction wheel 42 rotates, the liquid pushing plate 41 in the liquid storage tank 2 presses the cleaning liquid in the liquid storage tank 2 through the action of the push rod 4, the cleaning liquid keeps a certain hydraulic pressure, and the cleaning liquid is flushed to the communicating position between the guide pipe 21 and the liquid storage tank 2 when being pressed, so as to ensure that the cleaning liquid in the liquid storage tank 2 can be completely used along with the compression of the inner space of the liquid storage tank 2, the liquid pushing plate 41 is contacted with the inner wall of the liquid storage tank 2, the cleaning liquid attached to the inner wall of the liquid storage tank 2 is pushed, and the cleaning liquid is prevented from continuously remaining in the liquid storage tank 2 to generate peculiar smell; when the cleaning liquid in the liquid storage tank 2 is used, the ejector rod 4 moves to the deepest part of the liquid storage tank 2, the ejector rod 4 drives the pressing plate 46 to press the pressed button of the second trigger switch 45, and an early warning device is arranged in the exhaust fan and is controlled to be opened and closed by the second trigger switch 45; wherein the output of the drive motor 43 passes through the isolation sleeve; the driving motor 43 isolates the shell of the driving motor from the outside through the isolating sleeve, so that the use of the driving motor 43 is protected; when the friction wheel 42 rotates, the friction blocks 421 in the side grooves are thrown out by centrifugal force and are connected by the tension springs, and the friction blocks 421 improve the contact friction range with the ejector rod 4; exhaust fan exhaust air enters the filter box 52 through the air outlet pipe 51, oil dirt carried in the air during cleaning enters liquid water in the filter box 52, then the air is discharged through an air outlet on the top surface of the filter box 52, and the air with the oil dirt is placed to fall on the roof of a factory building, so that pollution is caused.
The foregoing has shown and described the basic principles, principal features and advantages of the invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, and that the above embodiments and descriptions are merely illustrative of the principles of the present invention, and various changes and modifications may be made without departing from the spirit and scope of the invention, which is defined in the appended claims. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (8)
1. A self-cleaning exhaust fan is characterized in that: comprising the following steps:
the shell (1) is a shell of the integral exhaust fan, and a fan assembly is arranged in the shell;
the filter screen (11) is positioned at the air inlet of the shell (1), and a space exists between the surface of the filter screen and the end part of the air inlet of the shell (1);
the liquid storage tanks (2) are provided with a plurality of annular peripheral surfaces which are uniformly arranged on the shell (1);
a conduit (21) which is arranged on the surface of the liquid storage tank (2) and is communicated with the liquid storage tank (2);
a water suction pump (22) which is arranged at the end part of the conduit (21) far away from the liquid storage tank (2) and is communicated with the conduit (21);
a water spray head (23) which is arranged on the bottom surface of the water pump (22) and is communicated with the water outlet of the water pump (22);
the bearing holes (24) are arranged and uniformly formed in the annular peripheral surface of the shell (1), and the orifices are positioned between the end surface of the air inlet of the shell (1) and the filter screen (11); the water spraying head (23) is inserted into the receiving hole (24), and the spraying outlet of the water spraying head (23) points to the inside of the shell (1);
the guide rod (3) is vertically arranged on one surface of the filter screen (11) facing the center of the shell (1);
the supporting plate (31) is arranged on the inner wall of the shell (1) and is positioned between the fan assembly and the filter screen, and the guide rod (3) penetrates through the supporting plate (31);
the first bracket (32) is fixedly connected to one surface of the supporting plate (31) far away from the filter screen (11);
the first trigger switch (33) is arranged on the surface of the first bracket (32) and has a gap with the end part of the guide rod (3); when the guide rod (3) moves towards the direction approaching the first trigger switch (33), the pressed button of the first trigger switch (33) can be pressed; the water pump (22) is controlled to be opened and closed by a first trigger switch (33); a limiting spring is arranged between the guide rod (3) and the first bracket (32);
a plurality of vibrators (12) are uniformly arranged on the annular peripheral surface of the shell (1), and the opening and closing of the vibrators (12) are controlled by a first trigger switch (33);
a pair of ejector rods (4) are connected with the side surface of the liquid storage tank (2) in a penetrating and inserting mode, a liquid pushing plate (41) is arranged at one end, located inside the liquid storage tank (2), of the ejector rods (4), the size of the liquid pushing plate (41) is matched with that of the liquid storage tank (2), and cleaning liquid inside the liquid storage tank (2) is extruded along with the movement of the liquid pushing plate (41) inside the liquid storage tank (2); the side surface of the part of the ejector rod (4) positioned outside the liquid storage tank (2) is provided with a friction wheel (42), the top surface of the friction wheel (42) is provided with a driving motor (43), and the opening and closing of the driving motor (43) is controlled by a first trigger switch (33); a second bracket (44) is arranged between the driving motor (43) and the liquid storage tank (2), and the ejector rod (4) is driven by friction force between the ejector rod and the friction wheel (42) when the friction wheel (42) rotates.
2. A self-cleaning exhaust fan as claimed in claim 1, wherein: an atomizing head (231) is inserted into the spray outlet of the spray head (23).
3. A self-cleaning exhaust fan as claimed in claim 1, wherein: one surface of the supporting plate (31) far away from the filter screen (11) is provided with an isolation cover (35), and the isolation cover (35) is matched with the supporting plate (31) to cover the first bracket (32) and the first trigger switch (33) from the outside.
4. A self-cleaning exhaust fan as claimed in claim 1, wherein: one side of the supporting plate (31) close to the filter plate (11) is provided with an isolation cylinder (34), the isolation cylinder (34) is sleeved on the guide rod (3), and the end part of the isolation cylinder is in sliding connection with the surface of the guide rod (3).
5. A self-cleaning exhaust fan as claimed in claim 1, wherein: the end part of the ejector rod (4) positioned outside the liquid storage tank (2) is fixedly connected with a pressing plate (46), a second trigger switch (45) is arranged on the side surface of the liquid storage tank (2), an early warning device is arranged in the exhaust fan, and the early warning device is controlled to be opened and closed through the second trigger switch (45); when the ejector rod (4) moves to the deepest part of the liquid storage tank (2), the pressing plate (46) presses a pressed button of the second trigger switch (45).
6. A self-cleaning exhaust fan as claimed in claim 1, wherein: an isolation sleeve is sleeved outside the driving motor (43); the output end of the driving motor (43) passes through the isolation sleeve.
7. A self-cleaning exhaust fan as claimed in claim 1, wherein: the side of friction wheel (42) has evenly offered a plurality of recesses, has pegged graft in the recess and has had friction block (421), be provided with extension spring between friction block (421) and the recess inner wall.
8. A self-cleaning exhaust fan as claimed in claim 1, wherein: the air outlet of casing (1) is installed baffle (5), the surface through-connection of baffle (5) has out tuber pipe (51), the one end that baffle (5) was kept away from to tuber pipe (51) is provided with rose box (52), the gas outlet has been seted up to the top surface of rose box (52), the inside of rose box (52) is filled with liquid water, drives the tip of tuber pipe (51) and inserts the inside of liquid water in rose box (52).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310881681.6A CN116717485B (en) | 2023-07-18 | 2023-07-18 | Self-cleaning exhaust fan |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310881681.6A CN116717485B (en) | 2023-07-18 | 2023-07-18 | Self-cleaning exhaust fan |
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| Publication Number | Publication Date |
|---|---|
| CN116717485A CN116717485A (en) | 2023-09-08 |
| CN116717485B true CN116717485B (en) | 2023-11-03 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202310881681.6A Active CN116717485B (en) | 2023-07-18 | 2023-07-18 | Self-cleaning exhaust fan |
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| Country | Link |
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| CN (1) | CN116717485B (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CA311145A (en) * | 1931-05-05 | B. Prince Raymond | Traffic air compressor | |
| CN106049328A (en) * | 2015-04-10 | 2016-10-26 | 苏州宝时得电动工具有限公司 | Blowing and sucking device |
| CN112756113A (en) * | 2021-01-27 | 2021-05-07 | 重庆精玖机械科技有限公司 | Full-automatic high-efficiency electrostatic dust collector |
| CN113687698A (en) * | 2021-08-06 | 2021-11-23 | 深圳市途佳智慧科技有限公司 | Multifunctional case |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7485168B2 (en) * | 2005-07-27 | 2009-02-03 | Delphi Technologies, Inc. | Cabin air filter |
-
2023
- 2023-07-18 CN CN202310881681.6A patent/CN116717485B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CA311145A (en) * | 1931-05-05 | B. Prince Raymond | Traffic air compressor | |
| CN106049328A (en) * | 2015-04-10 | 2016-10-26 | 苏州宝时得电动工具有限公司 | Blowing and sucking device |
| CN112756113A (en) * | 2021-01-27 | 2021-05-07 | 重庆精玖机械科技有限公司 | Full-automatic high-efficiency electrostatic dust collector |
| CN113687698A (en) * | 2021-08-06 | 2021-11-23 | 深圳市途佳智慧科技有限公司 | Multifunctional case |
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| Publication number | Publication date |
|---|---|
| CN116717485A (en) | 2023-09-08 |
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