An oil fume pipeline cleaning device

Abstract

The utility model relates to pipeline cleaning device technical field, and disclose a kind of oil fume pipeline cleaning device, including straight pipe, driving mechanism, driving motor, transmission rod, water spraying mechanism, follow-up rotary table, circumferential limit sliding guide mechanism, fixed ring, sliding ring, power mechanism, scissor mechanism, mounting plate, elastic support mechanism, cleaning brush, circumferential scraper and scraper and pipe wall distance control mechanism.Using the structure, follow-up rotary table drives circumferential scraper and cleaning brush circumferential rotation, so that the circumferential scraper on mounting plate can scrape off the oil fume condensation stain on the inner wall of oil fume pipeline, then cooperate cleaning brush to brush and clean, improve the efficiency and quality of cleaning;Cleaning brush is circumferentially distributed on mounting plate simultaneously, and the spray path of cleaning fluid is not blocked;And sliding ring, fixed ring and scissor mechanism can be driven by power mechanism to link, so that the radial position of cleaning brush is flexibly adjusted, and oil fume pipeline of cooperation with multiple pipe diameters is realized.

Description

Technical Field

[0001] This utility model relates to the technical field of pipeline cleaning devices, specifically a fume duct cleaning device. Background Technology

[0002] Hotels, restaurants, and residential buildings generate a large amount of oily fumes in their daily lives. These fumes are collected through vertical exhaust ducts outside the walls and then released into the atmosphere. Over time, a large amount of oily fumes accumulate inside these ducts, affecting hygiene and posing significant safety hazards. Patent document CN 217043849 U discloses a multifunctional oily fume duct cleaning device, which includes a straight pipe, a drive mechanism, a drive motor, a transmission rod, and a water spray mechanism. This allows the device to move automatically, making it easy to operate and providing superior cleaning results.

[0003] However, the aforementioned prior art devices also have the following drawbacks: the size of the cleaning ring, which is a cleaning component, is fixed and cannot be adjusted, and it cannot effectively contact the inner wall of the duct when dealing with oil fume ducts of different diameters, resulting in incomplete cleaning; and it cannot efficiently remove the oil fume condensation stains adhering to the inner wall of the duct. Summary of the Invention

[0004] This utility model mainly provides a fume duct cleaning device to solve the problems of existing technology where the size of the cleaning ring is fixed and cannot be adjusted, making it unable to effectively contact the inner wall of fume ducts of different diameters, resulting in incomplete cleaning; and the inability to efficiently remove condensed grease stains adhering to the inner wall of the duct.

[0005] To solve the above-mentioned technical problems, the present invention adopts the following technical solution: A fume duct cleaning device includes a straight pipe, a drive mechanism, a drive motor, a collection trough, a transmission rod, and a water spraying mechanism. The upper end of the transmission rod is equipped with a follower turntable, and the follower turntable is equipped with a circumferential limiting sliding guide mechanism. The circumferential limiting sliding guide mechanism has a fixed ring with a fixed position and a sliding ring with a variable position slidably connected to it. The collection trough contains a power mechanism for driving the sliding ring to slide on the circumferential limiting sliding guide mechanism. Multiple sets of scissor mechanisms are rotatably connected to the sliding ring and the fixed ring. Each set of scissor mechanisms has a mounting plate at its outer end. The mounting plate is detachably connected to an elastic support mechanism and a cleaning brush. The elastic support mechanism has a circumferential scraper, and its outer end has a scraper-to-pipe wall distance control mechanism. The nozzle of the water spraying mechanism is located inside the mounting plate. The components, including the straight pipe, drive mechanism, drive motor, transmission rod, and water spray mechanism, can all adopt existing technologies, as long as their respective technical principles are implemented. The straight pipe is used to install the various components, the drive mechanism is used to adjust the displacement of the entire device, and the drive motor drives the follower turntable to rotate, thereby causing the circumferential scraper and cleaning brush mounted on the mounting plate to rotate circumferentially, thus scraping away stains and cleaning the inner wall of the pipe. The water spray mechanism is used to spray cleaning liquid onto the inner wall of the pipe. The nozzle of the water spray mechanism being located inside the mounting plate means that the branch pipe of the water spray mechanism is extended, so that its nozzle position can be located inside the mounting plate. Since the cleaning brush is detachably connected to the circumferentially distributed mounting plate, it does not affect the liquid sprayed from the nozzle from penetrating the inner wall of the pipe. "Multiple sets" refers to two or more sets. The cleaning brush can be any existing cleaning brush, as long as it can brush and clean the inner wall of the pipe. It can be connected to the mounting plate in any detachable way, such as bolt connection. In use, the follower turntable, driven by a motor and transmission rod, rotates circumferentially. Various components on the turntable, including the mounting plate, circumferential scraper, and cleaning brush, scrape away condensed grease and grime from the inner wall of the fume duct during this rotation, cleaning the duct's interior. When adjusting the radial position of the cleaning brush, the power mechanism drives the sliding ring to move axially on the circumferential limiting sliding guide mechanism. By adjusting the distance between the sliding ring and the positioning ring, the scissor mechanism on both rings moves, ultimately adjusting the radial position of the cleaning brush to match different duct inner diameters. Simultaneously, by adjusting the radial position to increase the pressure of the cleaning brush on the duct inner wall, the elastic support mechanism retracts when the scraper-to-wall distance adjustment mechanism is pressed against the duct inner wall, preventing the circumferential scraper blade from striking the duct inner wall. The scraper-to-wall distance adjustment mechanism adjusts the distance between the circumferential scraper blade and the duct wall.This structure utilizes a rotating turntable and a drive motor to rotate the circumferential scraper and cleaning brush. The circumferential scraper on the mounting plate removes condensed grease and grime from the inner wall of the fume duct, followed by brushing with the cleaning brush, improving cleaning efficiency and quality. Furthermore, the circumferential distribution of the cleaning brushes on the mounting plate prevents obstruction of the cleaning fluid spray path. The power mechanism also drives the sliding ring, fixed ring, and scissor mechanism, allowing for flexible adjustment of the cleaning brush's radial position to accommodate various pipe diameters. The exhaust duct is equipped with an elastic support mechanism. When the radial position of the cleaning brush is adjusted to increase its pressure on the duct wall and improve the wiping effect, if there are small protrusions on the inner wall of the duct or the cleaning pressure is too high, the elastic support mechanism will retract synchronously after the scraper-to-duct wall distance control mechanism presses against the duct wall. This effectively avoids the circumferential scraper from colliding with the duct wall, preventing the blade from breaking or curling. Furthermore, the scraper-to-duct wall distance control mechanism can precisely control the distance between the circumferential scraper and the duct wall, effectively preventing the blade from directly scraping the duct wall and preventing the duct wall from being scratched by the scraper.

[0006] Furthermore, the circumferential limiting sliding guide mechanism includes multiple guide rods arranged circumferentially on the follower turntable, and anti-detachment rings disposed at the outer ends of the multiple guide rods; the sliding ring is slidably connected to the multiple guide rods. Here, "multiple" refers to two or more guide rods. In use, the sliding ring can be guided and displaced axially along the multiple guide rods under the drive of the power mechanism, and the arrangement of multiple guide rods can limit the circumferential displacement of the sliding ring. This structure ensures the stability and coaxiality of the sliding ring displacement, avoiding uneven force on the scissor mechanism due to the tilting of the sliding ring; and the anti-detachment ring can effectively prevent the sliding ring from detaching from the guide rods.

[0007] Furthermore, the power mechanism includes a motor mounted on the follower turntable and an adjusting screw mounted on the output end of the motor. The follower turntable is provided with an outer cover to enclose the motor. A shaft sealing ring is provided between the adjusting screw and the outer cover. The sliding ring is threadedly connected to the adjusting screw. The motor can be any type of existing technology, as long as it can drive the adjusting screw to rotate, such as a servo motor. In use, the motor rotates, driving the adjusting screw to rotate, thereby displacing the sliding ring threadedly connected to the adjusting screw under the constraint of the guide rod. Using this structure, the precise displacement of the sliding ring can be achieved by driving the adjusting screw with the motor, thus accurately adjusting the radial position of the cleaning brush to adapt to pipes of different diameters. Simultaneously, the shaft sealing ring between the outer cover and the adjusting screw prevents liquid from entering the outer cover, improving the service life of the motor.

[0008] Furthermore, the scissor lift mechanism includes a movable bracket whose inner end is rotatably connected to the sliding ring, and a fixed bracket whose inner end is rotatably connected to the fixed ring. The movable bracket and the fixed bracket are rotatably connected. A displacement assembly is rotatably connected to the outer end of the movable bracket. The displacement assembly is disposed on the inner side of the mounting plate, and the outer end of the fixed bracket is rotatably connected to the inner side of the mounting plate. Specifically, the displacement assembly includes a displacement frame disposed within the mounting plate. A displacement guide rod is disposed on the displacement frame, and a displacement block is slidably connected to the displacement guide rod. The outer end of the movable bracket is rotatably connected to the displacement block. The displacement assembly can also be a guide rail. The movable bracket and the positioning frame are hinged to their corresponding components using pins and shafts. In use, as the sliding block is displaced by the power mechanism, the movable bracket moves synchronously with the sliding ring, causing the scissor lift to rotate with the fixed bracket. The angle between the two changes, and the outer end of the movable bracket is rotatably connected to the displacement assembly, allowing its outer end to also move via the displacement assembly while rotating. This structure, through the principle of the scissor mechanism, can convert the axial displacement of the sliding ring into the radial displacement of the mounting plate, thereby adjusting the position of the cleaning brush to adapt to different pipe diameters. Its moving bracket and fixed bracket are rotatably connected, as well as rotatably connected to each component, making the adjustment of the entire mechanism more flexible.

[0009] Furthermore, the elastic support mechanism includes multiple support rods slidably connected to the mounting plate. The inner end of each support rod is provided with an anti-detachment block, and the outer end of each support rod is provided with a mounting base. A spring is sleeved on the support rod between the mounting base and the mounting plate. The circumferential scraper is detachably connected to the mounting base. The scraper-to-pipe wall distance control mechanism is located on the outer end of the mounting base. In use, the scraper-to-pipe wall distance control mechanism abuts against the inner wall of the pipe, thus preventing the circumferential scraper from directly contacting the inner wall. When there is excessive radial displacement, the increased pressure compresses the spring between the mounting base and the mounting plate, causing the support rod to move inward. This structure, through the elastic resistance of the spring, prevents the circumferential scraper from directly colliding with the inner wall of the pipe, thus preventing damage to the blade.

[0010] Furthermore, the scraper-to-pipe-wall distance control mechanism includes a control screw, the outer end of which is equipped with a bullseye ball; the mounting base has a control channel, and the control screw is threaded into the control channel. In use, rotating the control screw adjusts the distance between the outer contact surface of the bullseye ball and the circumferential scraping surface of the blade. This allows for control and adjustment of the distance between the blade of the circumferential scraper and the inner wall of the pipe, while the bullseye ball provides support against the inner wall. This structure allows for precise control of the distance between the circumferential scraper and the pipe wall, avoiding blade damage, protecting the blade, and ensuring effective scraping. The rolling motion of the bullseye ball on the inner wall reduces resistance to circumferential movement of the components, lowers energy consumption of the drive mechanism, and prevents scratches on the pipe wall. The threaded connection facilitates distance adjustment, allowing for flexible adjustment of the blade's distance from the inner wall, effectively scraping away condensed oil and soot buildup on the inner wall of the pipe.

[0011] Beneficial effects: By using a follow-up turntable in conjunction with a drive motor to rotate the circumferential scraper and cleaning brush, the circumferential scraper on the mounting plate can remove condensed grease and grime from the inner wall of the fume duct, followed by brushing with the cleaning brush, improving cleaning efficiency and quality. Simultaneously, the circumferential distribution of the cleaning brush on the mounting plate does not obstruct the spray path of the cleaning fluid. Furthermore, the power mechanism can drive the sliding ring, fixed ring, and scissor mechanism in a coordinated manner, allowing for flexible adjustment of the radial position of the cleaning brush, making it suitable for various pipe diameters. The exhaust duct is equipped with an elastic support mechanism. When the radial position of the cleaning brush is adjusted to increase its pressure on the duct wall and improve the wiping effect, if there are small protrusions on the inner wall of the duct or the cleaning pressure is too high, the elastic support mechanism will retract synchronously after the scraper-to-duct wall distance control mechanism presses against the duct wall. This effectively avoids the circumferential scraper from colliding with the duct wall, preventing the blade from breaking or curling. Furthermore, the scraper-to-duct wall distance control mechanism can precisely control the distance between the circumferential scraper and the duct wall, effectively preventing the blade from directly scraping the duct wall and preventing the duct wall from being scratched by the scraper. Attached Figure Description

[0012] Figure 1 This is a first oblique view of the straight pipe in this embodiment; Figure 2 This is a schematic diagram of the straight pipe viewed from the top at an angle in this embodiment; Figure 3 This is an example. Figure 2 Enlarged diagram of A in the middle.

[0013] Reference numerals in the attached drawings: 1. Straight pipe; 2. Follow-up turntable; 3. Circumferential limiting sliding guide mechanism; 3. Guide rod; 301. Anti-detachment ring; 302. Fixed ring; 4. Sliding ring; 5. Scissor mechanism; 6. Moving bracket; 601. Fixed bracket; 602. Displacement component; 603. Mounting plate; 7. Elastic support mechanism; 8. Support rod; 801. Anti-detachment block; 802. Mounting seat; 803. Spring; 804. Cleaning brush; 9. Circumferential scraper; 10. Scraper-to-pipe wall distance control mechanism; 11. Control screw; 1101. Bullseye ball; 1102. Adjusting screw; 12. Outer cover; 13. Shaft sealing ring; 14. Detailed Implementation

[0014] The technical solution of the oil fume duct cleaning device of this utility model will be further described in detail below with reference to the embodiments.

[0015] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0016] As shown in Figures 1, 2, and 3, an oil fume duct cleaning device of this embodiment includes a straight pipe 1, a drive mechanism, a drive motor, a collection trough, a transmission rod, and a water spraying mechanism. A follower turntable 2 is provided at the upper end of the transmission rod. A circumferential limiting sliding guide mechanism 3 is provided on the follower turntable 2. A fixed ring 4 with a fixed position and a sliding ring 5 with a variable position are slidably connected on the circumferential limiting sliding guide mechanism 3. A power mechanism for driving the sliding ring 5 to slide on the circumferential limiting sliding guide mechanism 3 is provided in the collection trough. Multiple sets of scissor mechanisms 6 are rotatably connected to the sliding ring 5 and the fixed ring 4. An mounting plate 7 is provided at the outer end of each set of scissor mechanisms 6. An elastic support mechanism 8 and a cleaning brush 9 are detachably connected to the mounting plate 7. A circumferential scraper 10 is provided on the elastic support mechanism 8, and a scraper-to-pipe wall distance control mechanism 11 is provided at the outer end of the elastic support mechanism 8. The nozzle of the water spraying mechanism is located on the mounting plate 7. The components, including the straight pipe 1, drive mechanism, drive motor, transmission rod, and water spray mechanism, can all adopt existing technologies, as long as their respective technical principles can be realized. The straight pipe 1 is used to install the various components, the drive mechanism is used to adjust the displacement of the entire device, and the drive motor drives the follower turntable 2 to rotate, thereby causing the circumferential scraper 10 and cleaning brush 9 set on the mounting plate 7 to rotate circumferentially, thereby scraping off stains and cleaning the inner wall of the pipe. The water spray mechanism is used to spray cleaning liquid onto the inner wall of the pipe. The nozzle of the water spray mechanism is located inside the mounting plate 7, meaning that the diversion pipe of the water spray mechanism is extended so that its nozzle can be located inside the mounting plate 7. Since the cleaning brush 9 is detachably connected to the circumferentially distributed mounting plate 7, it does not affect the liquid sprayed from the nozzle from penetrating the inner wall of the pipe. The circumferential limiting sliding guide mechanism 3 includes multiple guide rods 301 arranged circumferentially on the follower turntable 2, and anti-detachment rings 302 disposed at the outer ends of the multiple guide rods 301; the sliding ring 5 is slidably connected to the multiple guide rods 301. The power mechanism includes a motor disposed on the follower turntable 2, and an adjusting screw 12 disposed at the output end of the motor, and the follower turntable 2 is provided with an outer cover 13 for covering the motor; a shaft sealing ring 14 is disposed between the adjusting screw 12 and the outer cover 13; the sliding ring 5 is threadedly connected to the adjusting screw 12.The scissor lift mechanism 6 includes a movable bracket 601 whose inner end is rotatably connected to the sliding ring 5, and a fixed bracket 602 whose inner end is rotatably connected to the fixed ring 4. The movable bracket 601 and the fixed bracket 602 are rotatably connected. A displacement component 603 is rotatably connected to the outer end of the movable bracket 601. The displacement component 603 is disposed on the inner side of the mounting plate 7. The outer end of the fixed bracket 602 is rotatably connected to the inner side of the mounting plate 7. The elastic support mechanism 8 includes multiple support rods 801 slidably connected to the mounting plate 7. An anti-detachment block 802 is provided at the inner end of each support rod 801, and a mounting base 803 is provided at the outer end of each support rod 801. A spring 804 is sleeved on each support rod 801 between the mounting base 803 and the mounting plate 7. The circumferential scraper 10 is detachably connected to the mounting base 803. The scraper-to-pipe wall distance control mechanism 11 is located on the outer end of the mounting base 803. The scraper-to-pipe wall distance control mechanism 11 includes a control screw 1101, with a bullseye ball bearing 1102 at its outer end. A control channel is provided on the mounting base 803, and the control screw 1101 is threaded into the control channel.

[0017] In use, the follower turntable 2 is driven by a drive motor and transmission rod to rotate circumferentially. Various components on the follower turntable 2, including the mounting plate 7, circumferential scraper 10, and cleaning brush 9, can scrape away condensed grease and grime on the inner wall of the fume duct during circumferential rotation, and clean the inner wall of the fume duct. When the radial position of the cleaning brush 9 needs to be adjusted, the power mechanism drives the sliding ring 5 to move axially on the circumferential limiting sliding guide mechanism 3. By adjusting the distance between the sliding ring 5 and the fixed ring 4, the scissor mechanism 6 on both rings moves, ultimately adjusting the radial position of the cleaning brush 9 to match fume ducts with different inner diameters. Simultaneously, when the radial position is adjusted to increase the pressure of the cleaning brush 9 on the inner wall of the duct, the elastic support mechanism 8 retracts when the scraper-to-wall distance control mechanism 11 is against the inner wall of the duct, thus preventing the blade of the circumferential scraper 10 from hitting the inner wall of the duct. The circumferential scraper 10 is adjusted via the scraper-to-wall distance control mechanism 11. The distance between the blade and the pipe wall. Using this structure, the circumferential scraper 10 and cleaning brush 9 are rotated circumferentially by the follower turntable 2 and the drive motor. This allows the circumferential scraper 10 on the mounting plate 7 to scrape away condensed oil stains on the inner wall of the fume duct, followed by brushing with the cleaning brush 9, improving cleaning efficiency and quality. Simultaneously, the cleaning brush 9 is circumferentially distributed on the mounting plate 7, preventing obstruction of the cleaning liquid spray path. Furthermore, the power mechanism drives the sliding ring 5, fixed ring 4, and scissor mechanism 6 to flexibly adjust the radial position of the cleaning brush 9, adapting to fume ducts of various diameters. An elastic support mechanism 8 is also provided. When the radial position of the cleaning brush 9 is adjusted to increase its pressure on the pipe wall and improve the wiping effect, if there are small protrusions on the inner wall of the pipe or the cleaning pressure is too high, the elastic support mechanism 8 will retract synchronously after the scraper-to-wall distance control mechanism 11 presses against the pipe wall, effectively preventing the circumferential scraper 10 from being obstructed. The scraper avoids collision with the pipe wall, preventing the blade from chipping or curling. The scraper-to-pipe wall distance control mechanism 11 can precisely control the distance between the circumferential scraper 10 and the pipe wall, effectively preventing the blade from directly scraping the pipe wall and preventing the pipe wall from being scratched by the scraper.

[0018] The control method of this utility model is automatic control through a controller. The control circuit of the controller can be implemented by simple programming by those skilled in the art. The power supply is also common knowledge or conventional technology in the field. Therefore, this utility model will not explain the control method and circuit connection in detail.

[0019] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A fume duct cleaning device, comprising a straight pipe, a drive mechanism, a drive motor, a collection trough, a transmission rod, and a water spraying mechanism, characterized in that: The upper end of the transmission rod is provided with a follower turntable, and the follower turntable is provided with a circumferential limiting sliding guide mechanism. The circumferential limiting sliding guide mechanism is provided with a fixed ring with a fixed position and a sliding ring with a variable position. The collection trough is provided with a power mechanism for driving the sliding ring to slide on the circumferential limiting sliding guide mechanism. Multiple sets of scissor mechanisms are rotatably connected to the sliding ring and the fixed ring. Each set of scissor mechanisms is provided with a mounting plate at its outer end. An elastic support mechanism and a cleaning brush are detachably connected to the mounting plate. A circumferential scraper is provided on the elastic support mechanism, and a scraper-to-pipe wall distance control mechanism is provided at the outer end of the elastic support mechanism. The nozzle of the water spraying mechanism is located inside the mounting plate.

2. The oil fume duct cleaning device according to claim 1, characterized in that: The circumferential limiting sliding guide mechanism includes multiple guide rods arranged in a circular pattern on the follower turntable, and anti-detachment rings disposed at the outer ends of the multiple guide rods; the sliding rings are slidably connected to the multiple guide rods.

3. The oil fume duct cleaning device according to claim 2, characterized in that: The power mechanism includes an electric motor mounted on the follower turntable and an adjusting screw mounted on the output end of the electric motor. The follower turntable is provided with an outer cover for covering the electric motor. A shaft sealing ring is provided between the adjusting screw and the outer cover. The sliding ring is threadedly connected to the adjusting screw.

4. The oil fume duct cleaning device according to claim 1, characterized in that: The scissor lift mechanism includes a movable bracket whose inner end is rotatably connected to the sliding ring and a fixed bracket whose inner end is rotatably connected to the fixed ring. The movable bracket and the fixed bracket are rotatably connected. A displacement component is rotatably connected to the outer end of the movable bracket. The displacement component is disposed on the inner side of the mounting plate. The outer end of the fixed bracket is rotatably connected to the inner side of the mounting plate.

5. The oil fume duct cleaning device according to claim 1, characterized in that: The elastic support mechanism includes multiple support rods slidably connected to the mounting plate. The inner end of each support rod is provided with an anti-detachment block, and the outer end of each support rod is provided with a mounting base. A spring is sleeved on the support rod between the mounting base and the mounting plate. The circumferential scraper is detachably connected to the mounting base. The scraper-to-pipe wall distance control mechanism is provided on the outer end of the mounting base.

6. The oil fume duct cleaning device according to claim 5, characterized in that: The scraper-to-pipe wall distance control mechanism includes a control screw, the outer end of which is provided with a bullseye ball; the mounting base has a control channel, and the control screw is threaded into the control channel.

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