Intelligent cleaning equipment of oil smoke exhaust system

Abstract

The invention belongs to the technical field of pipeline cleaning, and particularly relates to intelligent cleaning equipment of an oil smoke exhaust system, which comprises a main body, a supporting rod is arranged on the main body, an electric wheel is mounted on the supporting rod, and the main body is connected with a sleeve; the regulation and control part comprises a lifting rod, a tooth groove is formed outside the lifting rod, and the tooth groove is meshed with a gear; the scraping part comprises a rotating frame, the rotating frame is connected with a scraper, a lifting plate is connected in the lifting rod, the rotating frame is connected with a pull rope A and a pull rope B, and the other end of the pull rope A and the other end of the pull rope B are connected with the lifting plate; the flushing part comprises a liquid box, a water pipe is arranged in the main body, the water pipe is connected with a three-head valve, the three-head valve is communicated with the liquid box, and the three-head valve is connected with a spray head. According to the device, the inner wall of the pipeline can be scoured and dissolved, the scraper can be attached to the inner walls of oil smoke pipelines of different specifications, the scraper can be driven to move and rotate on the inner wall of the pipeline so as to achieve scraping cleaning, and the cleaning range and effect are improved.

Description

Technical Field

[0001] This invention belongs to the field of pipeline cleaning technology, specifically relating to an intelligent cleaning device for an oil fume exhaust system. Background Technology

[0002] In the catering and food processing industries, a highly efficient fume extraction system is a critical infrastructure for ensuring kitchen air quality, fire safety, and food hygiene. This system consists of a fume hood, a fume purifier, and the metal ventilation ducts connecting them. During long-term operation, the high-temperature, high-humidity oily fumes condense on the inner walls of the ducts, forming a thick, flammable layer of grease that is extremely difficult to clean.

[0003] Firstly, the cleaning and maintenance of exhaust ducts mainly relies on periodic manual entry or segmented disassembly and cleaning. Manually entering narrow, dark ducts filled with harmful gases to scrape is a confined space operation, which is not only dangerous but also very difficult to operate. Disassembling the ducts is too cumbersome and time-consuming, which will directly impact operating revenue.

[0004] Secondly, kitchens of different sizes and business types have vastly different airflow and spatial layouts, resulting in different diameters of connecting pipes. Most semi-automatic cleaning equipment on the market (such as rod-shaped equipment with rotating brush heads) can usually only be adapted to a single or limited number of pipe diameters and are difficult to handle the switch from round pipes to rectangular pipes. Summary of the Invention

[0005] The purpose of this invention is to provide an intelligent cleaning device for a fume extraction system. Before scraping cleaning, the device can flush and dissolve the inner wall of the pipe, allow the scraper to adhere to the inner wall of fume extraction pipes of different specifications, and drive the scraper to move and rotate on the inner wall of the pipe to achieve scraping cleaning and improve the cleaning range and effect.

[0006] The specific technical solution adopted by this invention is as follows: A smart cleaning device for a kitchen exhaust system includes: The main body has a support rod on its outer side, an electric wheel is installed at the upper end of the support rod, and a sleeve is fixedly connected to the lower end of the main body. The control unit includes a lifting rod that is slidably connected to the inner cavity of the sleeve. The outer ring of the lifting rod has a toothed groove, and a gear meshes in the toothed groove. The scraping part includes a rotating frame, which is set on the lower outer ring of the lifting rod. A scraper is connected to the lower end of the rotating frame. A lifting plate is slidably connected to the inner cavity of the lifting rod. Pull rope A and pull rope B are fixedly connected to the upper and lower sides of the rotating frame, respectively. The other ends of pull rope A and pull rope B are fixedly connected to the upper and lower ends of the lifting plate, respectively. The flushing section includes a liquid tank located inside the main body. A water pipe is installed inside the main body, and a three-way valve is connected to the lower end of the water pipe. The three-way valve is connected to the liquid tank, and a nozzle is connected to the outlet of the three-way valve. The scraping section controls the scraper to fit the pipe according to the lifting control of the lifting plate. The lifting plate slides along the inner cavity of the lifting rod, driving the pull rope A and pull rope B to retract or extend, driving the rotating frame and scraper to perform opening and closing movements. The movement of the lifting rod along the inner cavity of the sleeve drives the scraper to move, and the gear drives the tooth groove and the lifting rod to rotate.

[0007] In a preferred embodiment, eight sets of support rods are rotatably connected to the outer side of the main body, and the eight sets of support rods are evenly distributed on the outer ring of the main body. An electric wheel is fixedly installed at the end of each of the eight sets of support rods away from the main body. A pneumatic rod is rotatably connected to the outer ring of the main body at the position where the support rods are installed, and the output end of the pneumatic rod is rotatably connected to the middle of the support rod.

[0008] In a preferred embodiment, a sleeve is fixedly installed at the lower end of the main body, and a collar is fixedly installed at the upper end of the main body.

[0009] In a preferred embodiment, the lifting rod is movably sleeved within the inner cavity of the main body and the sleeve, and a limiting plate with a diameter larger than the lifting rod is provided at the upper end of the lifting rod. An electric actuator A is fixedly installed at the upper end of the inner cavity of the main body, and the output end of the electric actuator A is rotatably connected to the limiting plate above the lifting rod.

[0010] In a preferred embodiment, the lifting rod has a toothed groove on the outer ring of the inner cavity of the main body, a motor is fixedly installed on the right side of the inner cavity of the main body, and a gear is fixedly connected to the output shaft of the motor, with the outer ring of the gear meshing with the outer ring of the toothed groove.

[0011] In a preferred embodiment, four sets of rotating frames are provided, evenly distributed on the lower outer ring of the lifting rod, and rotatably connected to the lower outer ring of the lifting rod. Each of the four sets of rotating frames has a scraper fixedly connected to its lower end.

[0012] In a preferred embodiment, an electric actuator B is fixedly installed at the upper end of the inner cavity of the lifting rod, and a lifting plate is fixedly connected to the output end of the electric actuator B. The lifting plate is slidably connected to the lower end of the inner cavity of the lifting rod.

[0013] In a preferred embodiment, pull rope A and pull rope B are fixedly connected to the upper and lower ends of the rotating frame, respectively. The other end of pull rope A extends into the lifting rod and from the upper end of the lifting rod into the inner cavity of the lifting rod, and is fixedly connected to the upper end of the lifting plate. The other end of pull rope B extends from the lower end of the lifting rod into the inner cavity of the lifting rod, and is fixedly connected to the lower end of the lifting plate. A circular cavity is opened at the upper end of the inner cavity of the lifting rod, and a guide wheel is rotatably connected inside the cavity. The outer ring of the middle section of pull rope A is rolled and connected to the inner ring of the guide wheel.

[0014] In a preferred embodiment, a liquid tank is fixedly installed in the middle of the inner cavity of the main body, and an inlet is provided at the upper end of the liquid tank. The inlet of the liquid tank extends out of the upper end of the main body. A water pipe is fixedly connected to the middle of the inner cavity of the main body. The upper end of the water pipe extends out of the main body, and the lower end of the water pipe is connected to a three-way valve. An infusion pipe is connected to the lower end of the liquid tank, and the infusion pipe is connected to one of the interfaces of the three-way valve.

[0015] In a preferred embodiment, the outlet of the three-head valve is connected to a mixing pipe, which is fixedly connected to the inner cavity of the sleeve. The lower end of the mixing pipe is connected to an annular pipe, which is fixedly connected to the outer ring of the lower end of the sleeve. Multiple sets of outlets are evenly opened on the outer ring of the annular pipe, and each outlet is connected to a nozzle.

[0016] The technical effects achieved by this invention are as follows: The scraping part of this invention allows the scraper to adhere to the inner wall of oil fume ducts of different specifications and scrape and clean the inner wall of the duct, preventing oil stains from clogging the exhaust pipe and affecting the exhaust performance. When in use, the lifting plate descends, pull rope A is retracted and pull rope B is pushed outward, driving the rotating frame to rotate outward, so that the scraper adheres to the inner wall of the duct. When the lifting plate rises, pull rope A is pushed out and pull rope B is retracted, driving the rotating frame and the cutter to rotate inward, so that the cutter is disengaged from the inner wall of the duct, so that it can be retracted after the operation is completed. The control unit of this invention can drive the scraper to move and rotate on the inner wall of the pipe in order to achieve scraping cleaning and expand the cleaning range and effect. When in use, after the scraper is attached to the inner wall of the fume duct, the lifting rod moves along the inner cavity of the main body, pushing the scraper to remove the oil stains. At the same time, the gear drives the lifting rod to rotate through the tooth groove, adjusting the position of the scraper so as to clean any part of the pipe. The flushing unit of this invention can flush and dissolve the inner wall of the pipe before scraping and cleaning, so that the subsequent cleaning operation can be carried out stably. When in use, the water source is connected to the water pipe and input into the three-way valve. At the same time, the cleaning liquid in the liquid tank also flows into the three-way valve and merges with the water source input from the water pipe. The mixed liquid flows into the nozzle and is sprayed out from the nozzle to flush and dissolve the oil stains in the pipe, so that the subsequent cleaning operation can be carried out normally. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall structure of the present invention; Figure 2 This is a cross-sectional schematic diagram of the main body of the present invention; Figure 3 This is a schematic cross-sectional view of the entire invention. Figure 4 This is a schematic diagram of the control unit in this invention; Figure 5 This is a schematic diagram of the lowering of the lifting rod in this invention; Figure 6 This is a cross-sectional schematic diagram of the scraping part in this invention; Figure 7 This is a cross-sectional schematic diagram of the lifting rod in this invention; Figure 8 This is a schematic diagram of the rotating frame in this invention; Figure 9 This is a cross-sectional schematic diagram of the flushing section in this invention; Figure 10 This is a schematic diagram of the nozzle structure in this invention.

[0018] The attached diagram lists the components represented by each number as follows: 10. Main body; 11. Support rod; 12. Electric wheel; 13. Pneumatic rod; 14. Sleeve; 15. Collar; 20. Control unit; 21. Lifting rod; 22. Electric actuator A; 23. Gear groove; 24. Motor; 25. Gear; 30. Scraping part; 31. Rotating frame; 32. Scraper; 33. Electric actuator B; 34. Lifting plate; 35. Pull rope A; 36. Pull rope B; 37. Guide wheel; 40. Flushing part; 41. Liquid tank; 42. Water pipe; 43. Three-way valve; 44. Infusion pipe; 45. Mixing pipe; 46. Ring pipe; 47. Nozzle. Detailed Implementation

[0019] To make the above-mentioned objects, features and advantages of the present invention more apparent and understandable, the specific embodiments of the present invention will be described in detail below with reference to the accompanying drawings.

[0020] Many specific details are set forth in the following description in order to provide a full understanding of the invention. However, the invention may also be practiced in other ways different from those described herein, and those skilled in the art can make similar extensions without departing from the spirit of the invention. Therefore, the invention is not limited to the specific embodiments disclosed below.

[0021] Secondly, the term "an embodiment" or "embodiment" as used herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation of the present invention. The phrase "in a preferred embodiment" appearing in different places throughout this specification does not necessarily refer to the same embodiment, nor is it a single or selective embodiment that mutually excludes other embodiments.

[0022] Secondly, the present invention is described in detail with reference to the schematic diagrams. When detailing the embodiments of the present invention, for ease of explanation, the cross-sectional views illustrating the device structure may be partially enlarged, not according to the usual scale. Furthermore, the schematic diagrams are merely examples and should not limit the scope of protection of the present invention. In addition, actual fabrication should include three-dimensional spatial dimensions of length, width, and depth.

[0023] Please see the appendix Figures 1 to 4 , Figures 6 to 7 , Figures 9 to 10 As shown, this embodiment provides an intelligent cleaning device for an exhaust fume system, including: The main body 10 has a support rod 11 on its outer side, an electric wheel 12 is installed on the upper end of the support rod 11, and a sleeve 14 is fixedly connected to the lower end of the main body 10. The control unit 20 includes a lifting rod 21, which is slidably connected to the inner cavity of the sleeve 14. The outer ring of the lifting rod 21 is provided with a toothed groove 23, and a gear 25 is meshed in the toothed groove 23. The scraping part 30 includes a rotating frame 31, which is disposed on the lower outer ring of the lifting rod 21. A scraper 32 is connected to the lower end of the rotating frame 31. A lifting plate 34 is slidably connected to the inner cavity of the lifting rod 21. Pull ropes A35 and B36 are fixedly connected to the upper and lower sides of the rotating frame 31, respectively. The other ends of pull ropes A35 and B36 are fixedly connected to the upper and lower ends of the lifting plate 34, respectively. The flushing unit 40 includes a liquid tank 41, which is disposed inside the main body 10. A water pipe 42 is disposed inside the main body 10. A three-way valve 43 is connected to the lower end of the water pipe 42. The three-way valve 43 is connected to the liquid tank 41, and a nozzle 47 is connected to the outlet of the three-way valve 43. Among them, the scraping part 30 controls the scraper 32 to adhere to the pipe according to the lifting control of the lifting plate 34. The lifting plate 34 slides along the inner cavity of the lifting rod 21, driving the pull rope A35 and pull rope B36 to retract or extend, driving the rotating frame 31 and the scraper 32 to perform opening and closing movements. The lifting rod 21 moves along the inner cavity of the sleeve 14, driving the scraper 32 to move, and the gear 25 drives the tooth groove 23 and the lifting rod 21 to rotate.

[0024] It should be noted that, in order to ensure the normal use of the device, the main body 10 should have a built-in remote control component (such as 4G or Bluetooth) and a built-in battery, so as to control the normal operation of each component inside the main body 10 and ensure the stability of the device operation.

[0025] In this embodiment, the main body 10 is placed inside the fume duct. The support rod 11 then rotates outward, causing the electric wheel 12 to adhere to the inner wall of the duct. Simultaneously, the lifting plate 34 descends, retracting the pull rope A35 and pushing the pull rope B36 outward, causing the rotating frame 31 to rotate outward, so that the scraper 32 adheres to the inner wall of the duct. The cleaning fluid in the water pipe 42 and the liquid tank 41 then converges through the three-way valve 43 and sprays out from the nozzle 47, flushing and dissolving the grease in the duct. The lifting rod 21 then moves along the inner cavity of the main body 10, pushing the scraper 32 to remove the grease. Simultaneously, the gear 25 drives the lifting rod 21 to rotate through the tooth groove 23, adjusting the position of the scraper 32 to clean any part of the duct. After cleaning, the device is removed, and the removed dirt inside the duct is then cleaned.

[0026] Secondly, please refer to it again. Figures 1 to 2 Eight sets of support rods 11 are rotatably connected to the outer side of the main body 10 via ball bearings, and the eight sets of support rods 11 are evenly distributed on the outer ring of the main body 10. An electric wheel 12 is fixedly installed at the end of each of the eight sets of support rods 11 away from the main body 10. A pneumatic rod 13 is rotatably connected to the outer ring of the main body 10 at the position where the support rods 11 are installed via ball bearings. The output end of the pneumatic rod 13 is rotatably connected to the middle of the support rod 11 via a rotating shaft. A sleeve 14 is fixedly installed at the lower end of the main body 10, and a collar 15 is fixedly installed at the upper end of the main body 10.

[0027] It should be noted that the part where the support rod 11 is connected to the main body 10 is equipped with a contact power supply device (such as an electric slip ring), and the outside of the power supply device should be sealed. This is intended to provide power to the electric wheel 12 while preventing water and oil generated during cleaning from coming into contact with the power supply device. The outer ring of the electric wheel 12 is equipped with a detachable rubber tire, which is designed to increase friction and facilitate the fixing of the main body 10 inside the fume duct. The collar 15 is used to tie ropes so that in the event of a device failure, external personnel can pull the ropes to remove the device from the fume duct. When the device is located inside a vertical duct, the collar 15 can also be used to tie ropes to reinforce the main body 10, ensuring that the main body 10 can move stably.

[0028] In this embodiment, the main body 10 is placed inside the fume duct during use. The air rod 13 then pushes the support rod 11 outwards, causing the outer ring of the electric wheel 12 to fit tightly against the inner wall of the duct, securing the main body 10 through friction. When it is necessary to adjust the position of the main body 10 within the duct, the electric wheel 12 is activated, moving the main body 10 along the inner wall of the duct, thus enabling the device to switch between different cleaning zones.

[0029] Secondly, please refer to it again. Figures 2 to 5 The lifting rod 21 is movably sleeved in the inner cavity of the main body 10 and the sleeve 14, and the upper end of the lifting rod 21 is provided with a limiting plate with a diameter larger than the lifting rod 21. The upper end of the inner cavity of the main body 10 is fixedly installed with an electric push rod A22, and the output end of the electric push rod A22 is rotatably connected to the limiting plate above the lifting rod 21 through a ball bearing. The lifting rod 21 has a toothed groove 23 on the outer ring of the inner cavity of the main body 10. A motor 24 is fixedly installed on the right side of the inner cavity of the main body 10. A gear 25 is fixedly connected to the output shaft of the motor 24. The outer ring of the gear 25 meshes with the outer ring of the toothed groove 23.

[0030] It should be noted that the lifting rod 21 is rotatably connected to the output end of the electric push rod A22 via a ball bearing, and a contact power supply device (such as an electric slip ring) is provided at the bearing mounting position of the lifting rod 21, and the other side of the power supply device is installed on the outer ring of the output end of the electric push rod A22, which is intended to enable the components inside the lifting rod 21 to be driven by electricity without affecting the rotation of the lifting rod 21. The height of the tooth groove 23 is greater than the travel length of the lifting rod 21, which is intended to ensure that no matter how the lifting rod 21 moves, the tooth groove 23 can never disengage from the gear 25. A limit ring (such as) is provided at the lower end of the inner cavity of the main body 10. Figure 4 As shown in the figure, the purpose is to ensure that even when the lifting rod 21 is lowered to the bottom, the limiting plate above the lifting rod 21 will not come into contact with the gear 25 due to the limiting ring, thus avoiding affecting the normal rotation of the gear 25.

[0031] In this embodiment, when the scraper 32 is in contact with the inner wall of the fume duct, the electric actuator A22 can push the lifting rod 21 to move along the inner cavity of the sleeve 14, causing the rotating frame 31 and the scraper 32 to move down synchronously, thereby cleaning the inner wall of the duct by scraping. When it is necessary to adjust the scraping angle of the scraper 32 to adapt to the curvature change of the inner wall of the duct, the motor 24 drives the gear 25 to rotate. The gear 25 drives the lifting rod 21 to rotate synchronously through the tooth groove 23, thereby causing the scraper 32 to change its orientation with the rotation of the lifting rod 21, ensuring that the scraper 32 can always be in contact with the inner wall of the duct at a suitable angle for scraping operations.

[0032] Secondly, please refer to again Figures 6 to 8 The rotating frame 31 is provided in four sets, evenly distributed on the lower outer ring of the lifting rod 21, and rotatably connected to the lower outer ring of the lifting rod 21 through ball bearings. The lower ends of the four sets of rotating frames 31 are all fixedly connected with scrapers 32. An electric actuator B33 is fixedly installed at the upper end of the inner cavity of the lifting rod 21. A lifting plate 34 is fixedly connected to the output end of the electric actuator B33. The lifting plate 34 is slidably connected to the lower end of the inner cavity of the lifting rod 21. The upper and lower ends of the rotating frame 31 are respectively fixedly connected to pull rope A35 and pull rope B36. The other end of pull rope A35 extends into the lifting rod 21 and extends from the upper end of the lifting rod 21 into the inner cavity of the lifting rod 21, and is fixedly connected to the upper end of the lifting plate 34. The other end of pull rope B36 extends from the lower end of the lifting rod 21 into the inner cavity of the lifting rod 21, and is fixedly connected to the lower end of the lifting plate 34. A circular cavity is opened at the upper end of the inner cavity of the lifting rod 21. A guide wheel 37 is rotatably connected to the cavity through a ball bearing. The outer ring of the middle section of pull rope A35 is rotatably connected to the inner ring of the guide wheel 37.

[0033] It should be noted that the outer edge of the scraper 32 is provided with an arc shape to fit the inner wall of the pipe, so as to fit the round pipe (here, in order to fit the square pipe, the scraper 32 can also be replaced with a flat style, which should be combined with the actual needs). The scraper 32 is detachably installed at the lower end of the rotating frame 31, which facilitates replacement and maintenance. The outer ring of the lifting plate 34 is provided with a ventilation groove to avoid the air pressure difference between the upper and lower sides of the lifting plate 34, which would affect the lifting of the lifting plate 34. The parts of the lifting rod 21 that come into contact with the pull ropes A35 and B36 are all equipped with conical scraping structures to prevent oil from entering the inner cavity of the lifting rod 21. Both pull ropes A35 and B36 are made of steel wire. In order to improve the adaptability to the uneven inner wall of the pipe caused by oil stains, a rope with a certain elasticity (such as rubber) can be added to the part where pull ropes A35 and B36 are connected to the lifting plate 34. This allows the scraper 32 to still rotate a certain distance when it touches the oil stains and cannot rotate outward, so as to deal with the uneven inner wall of the pipe. Here, the rotating frame 31 can be switched to different forms by raising and lowering the lifting plate 34. When the lifting plate 34 descends, it will pull the pull rope A35 to retract and simultaneously push out the pull rope B36, so that the rotating frame 31 rotates outward and the scraper 32 can contact the inner wall of the pipe. Conversely, when the lifting plate 34 rises, it will drive the rotating frame 31 to rotate inward and retract the scraper 32.

[0034] In this embodiment, during use, the electric actuator B33 pushes the lifting plate 34 to move, driving the pull ropes A35 and B36 to retract and extend. When the lifting plate 34 descends, pull rope A35 is retracted and pull rope B36 is pushed outward. At this time, the rotating frame 31 rotates outward, causing the scraper 32 to adhere to the inner wall of the fume duct, ensuring that the scraper 32 can effectively scrape. When the lifting plate 34 rises, pull rope B36 is retracted and pull rope A35 is pushed outward. The rotating frame 31 rotates inward, causing the scraper 32 to detach from the inner wall of the duct and retract, avoiding unnecessary collisions between the scraper 32 and the duct.

[0035] Please refer to it again. Figures 9 to 10 The liquid tank 41 is fixedly installed in the middle of the inner cavity of the main body 10, and the upper end of the liquid tank 41 is provided with an inlet. The inlet of the liquid tank 41 extends out of the upper end of the main body 10. A water pipe 42 is fixedly connected in the middle of the inner cavity of the main body 10. The upper end of the water pipe 42 extends out of the main body 10, and the lower end of the water pipe 42 is connected to a three-head valve 43. The lower end of the liquid tank 41 is connected to an infusion pipe 44, and the infusion pipe 44 is connected to one of the interfaces of the three-head valve 43. The outlet of the three-head valve 43 is connected to a mixing pipe 45, which is fixedly connected to the inner cavity of the sleeve 14. The lower end of the mixing pipe 45 is connected to an annular pipe 46, which is fixedly connected to the lower outer ring of the sleeve 14. Multiple sets of outlets are evenly opened on the outer ring of the annular pipe 46, and each outlet is connected to a nozzle 47.

[0036] It should be noted that the liquid tank 41 contains liquid for dissolving grease (such as heavy grease cleaner), which is intended to allow the addition of grease-dissolving liquid to the water pipe 42 to assist in cleaning when cleaning the fume duct. The part of the three-way valve 43 that connects the infusion tube 44 and the water tube 42 should be equipped with a one-way valve. The one-way valve should be set so that only the liquid in the infusion tube 44 and the water tube 42 can enter the three-way valve 43, so as to avoid the liquid in the water tube 42 from mixing into the liquid tank 41, which would dilute the dissolved liquid and affect the cleaning effect. The three-way valve 43 is an electrically controlled valve, designed to allow for the free control of the opening and closing of the infusion tube 44 and the water tube 42, as well as the angle of opening and closing, for operation. Nozzle 47 is a high-pressure water nozzle, designed to spray the mixed liquid onto the inner wall of the fume duct; Water pipe 42, three-way valve 43 and mixing pipe 45, as well as nozzle 47 and ring pipe 46 are all made of corrosion-resistant metal (such as stainless steel and titanium alloy) to prevent cleaning liquid from damaging the internal pipes; Preferably, to improve the cleaning effect, the water pipe 42 should be connected to an external water source and water pump during use. In order to improve the dissolution effect, the liquid transported by the water pipe 42 can be heated, or a set of electric heating tubes can be installed in the main body 10 (this is a common technical structure in the prior art, such as an electric water faucet, which will not be described in detail here), so that the mixed cleaning liquid can reach a certain temperature and improve the dissolution effect on oil stains. To facilitate the smooth delivery of the cleaning solution in the liquid tank 41 into the three-way valve 43 via the infusion tube 44, a small water pump can also be installed inside the main body 10 and connected to the infusion tube 44 and the three-way valve 43 respectively, so that the cleaning solution can be input into the three-way valve 43.

[0037] In this embodiment, during use, water is supplied from an external water source via water pipe 42 to the three-way valve 43. Simultaneously, cleaning fluid from the liquid tank 41 is also supplied to the three-way valve 43 via infusion pipe 44. The three-way valve 43 controls the flow ratio of the water source and cleaning fluid according to a preset program, causing them to converge in the mixing pipe 45. The mixed cleaning fluid is then distributed to each nozzle 47 via an annular pipe 46, and then sprayed onto the inner wall of the pipe at high pressure by the nozzles 47. The sprayed high-pressure mixture can quickly impact and dissolve the oil stains adhering to the inner wall of the pipe, creating favorable conditions for the subsequent scraping operation of the scraper 32.

[0038] The working principle of this invention is as follows: During use, the main body 10 is placed inside the fume duct. Then, the air rod 13 pushes the support rod 11 outwards, causing the outer ring of the electric wheel 12 to tightly adhere to the inner wall of the duct, securing the main body 10 through friction. When the position of the main body 10 within the duct needs adjustment, the electric wheel 12 activates, moving the main body 10 along the inner wall of the duct. Near the oily area, water is supplied from the water pipe 42 to the three-way valve 43, while cleaning fluid from the liquid tank 41 is also supplied to the three-way valve 43. The two solutions converge in the mixing pipe 45. The mixed cleaning fluid is then distributed through the annular pipe 46 to each nozzle 47, which then sprays it onto the inner wall of the duct at high pressure. Subsequently, the electric actuator B33 pushes the lifting plate 34 to move, driving the pull rope A35 to retract and the pull rope B36 to be pushed outward. At this time, the rotating frame 31 rotates outward, causing the scraper 32 to adhere to the inner wall of the fume duct. Then, the electric actuator A22 pushes the lifting rod 21 to move along the inner cavity of the sleeve 14, causing the rotating frame 31 and the scraper 32 to move downward synchronously, thus cleaning the inner wall of the duct by scraping. When it is necessary to adjust the scraping angle of the scraper 32 to adapt to the curvature of the inner wall of the duct, the motor 24 drives the gear 25 to rotate. The gear 25 drives the lifting rod 21 to rotate synchronously through the tooth groove 23, thereby causing the scraper 32 to change direction with the rotation of the lifting rod 21, so as to clean all corners inside the duct. After cleaning, the device can be removed.

[0039] The above description is merely a preferred embodiment of the present invention. It should be noted that those skilled in the art can make various improvements and modifications without departing from the principles of the present invention, and these improvements and modifications should also be considered within the scope of protection of the present invention. Structures, devices, and operating methods not specifically described or explained in this invention are implemented according to conventional methods in the art unless otherwise specified or limited.

Claims

1. An intelligent cleaning device for an oil fume exhaust system, characterized in that: include: The main body has a support rod on its outer side, an electric wheel is installed at the upper end of the support rod, and a sleeve is fixedly connected to the lower end of the main body. The control unit includes a lifting rod that is slidably connected to the inner cavity of the sleeve. The outer ring of the lifting rod has a toothed groove, and a gear meshes in the toothed groove. The scraping part includes a rotating frame, which is set on the lower outer ring of the lifting rod. A scraper is connected to the lower end of the rotating frame. A lifting plate is slidably connected to the inner cavity of the lifting rod. Pull rope A and pull rope B are fixedly connected to the upper and lower sides of the rotating frame, respectively. The other ends of pull rope A and pull rope B are fixedly connected to the upper and lower ends of the lifting plate, respectively. The flushing section includes a liquid tank located inside the main body. A water pipe is installed inside the main body, and a three-way valve is connected to the lower end of the water pipe. The three-way valve is connected to the liquid tank, and a nozzle is connected to the outlet of the three-way valve. The scraping section controls the scraper to fit the pipe according to the lifting control of the lifting plate. The lifting plate slides along the inner cavity of the lifting rod, driving the pull rope A and pull rope B to retract or extend, driving the rotating frame and scraper to perform opening and closing movements. The movement of the lifting rod along the inner cavity of the sleeve drives the scraper to move, and the gear drives the tooth groove and the lifting rod to rotate.

2. The intelligent cleaning device for the fume extraction system according to claim 1, characterized in that: Eight sets of support rods are rotatably connected to the outer side of the main body, and the eight sets of support rods are evenly distributed on the outer ring of the main body. An electric wheel is fixedly installed at the end of each of the eight sets of support rods away from the main body. A pneumatic rod is rotatably connected to the outer ring of the main body at the position where the support rods are installed, and the output end of the pneumatic rod is rotatably connected to the middle of the support rod.

3. The intelligent cleaning device for the fume extraction system according to claim 1, characterized in that: A sleeve is fixedly installed at the lower end of the main body, and a collar is fixedly installed at the upper end of the main body.

4. The intelligent cleaning device for the fume extraction system according to claim 1, characterized in that: The lifting rod is movably sleeved within the inner cavity of the main body and the sleeve, and a limiting plate with a diameter larger than the lifting rod is provided at the upper end of the lifting rod. An electric actuator A is fixedly installed at the upper end of the inner cavity of the main body, and the output end of the electric actuator A is rotatably connected to the limiting plate above the lifting rod.

5. The intelligent cleaning device for the fume extraction system according to claim 4, characterized in that: The lifting rod has a toothed groove on the outer ring of the inner cavity of the main body. A motor is fixedly installed on the right side of the inner cavity of the main body. A gear is fixedly connected to the output shaft of the motor, and the outer ring of the gear meshes with the outer ring of the toothed groove.

6. The intelligent cleaning device for the fume extraction system according to claim 1, characterized in that: There are four sets of rotating frames, evenly distributed on the lower outer ring of the lifting rod, and rotatably connected to the lower outer ring of the lifting rod. Each of the four sets of rotating frames has a scraper fixedly connected to its lower end.

7. The intelligent cleaning device for the fume extraction system according to claim 6, characterized in that: An electric actuator B is fixedly installed at the upper end of the inner cavity of the lifting rod, and a lifting plate is fixedly connected to the output end of the electric actuator B. The lifting plate is slidably connected to the lower end of the inner cavity of the lifting rod.

8. The intelligent cleaning device for the fume extraction system according to claim 7, characterized in that: The upper and lower ends of the rotating frame are fixedly connected to pull rope A and pull rope B, respectively. The other end of pull rope A extends into the lifting rod and from the upper end of the lifting rod into the inner cavity of the lifting rod, and is fixedly connected to the upper end of the lifting plate. The other end of pull rope B extends from the lower end of the lifting rod into the inner cavity of the lifting rod, and is fixedly connected to the lower end of the lifting plate. A circular cavity is opened at the upper end of the inner cavity of the lifting rod, and a guide wheel is rotatably connected inside the cavity. The outer ring of the middle section of pull rope A is rolled and connected to the inner ring of the guide wheel.

9. The intelligent cleaning device for the fume extraction system according to claim 1, characterized in that: The liquid tank is fixedly installed in the middle of the inner cavity of the main body, and an inlet is opened at the upper end of the liquid tank. The inlet of the liquid tank extends out of the upper end of the main body. A water pipe is fixedly connected to the middle of the inner cavity of the main body. The upper end of the water pipe extends out of the main body, and the lower end of the water pipe is connected to a three-way valve. The lower end of the liquid tank is connected to an infusion pipe, which is connected to one of the interfaces of the three-way valve.

10. The intelligent cleaning device for the fume extraction system according to claim 9, characterized in that: The outlet of the three-head valve is connected to a mixing pipe, which is fixedly connected to the inner cavity of the sleeve. The lower end of the mixing pipe is connected to an annular pipe, which is fixedly connected to the outer ring of the lower end of the sleeve. Multiple sets of outlets are evenly opened on the outer ring of the annular pipe, and each outlet is connected to a nozzle.

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