Multifunctional pipeline surface cleaning device and method

Abstract

The invention belongs to the technical field of pipeline surface coating maintenance, and particularly relates to a multifunctional pipeline surface cleaning device which comprises a frame seat, the upper portion of the frame seat is in a transverse cylinder shape, a rotating cylinder is coaxially and rotatably connected to the interior of a cylinder body of the frame seat, a plurality of arc-shaped cleaning brushes are evenly distributed in the rotating cylinder, and the arc-shaped cleaning brushes are evenly distributed along the axis of the rotating cylinder. The radian direction of the arc-shaped cleaning brushes is consistent with that of the rotary drum, and telescopic assemblies are connected between the arc-shaped cleaning brushes and the rotary drum; one end of the rotary drum is a feed port, and the other end of the rotary drum is a discharge port; and a feeding assembly is mounted on the frame base at the end of the feeding hole. Through the structural design of the telescopic assembly, the arc-shaped cleaning brush and the feeding assembly, the problems that the device can only clean a pipeline with a single pipe diameter, is not easy to replace after being abraded and is prone to re-rusting after being cleaned are solved, and the function of automatic feeding during pipeline cleaning is achieved.

Description

TECHNICAL FIELD

[0001] The present application belongs to the technical field of pipeline surface coating maintenance, and particularly relates to a multifunctional pipeline surface cleaning device and method. BACKGROUND

[0002] In a refining and chemical enterprise, as the service life of the coating is prolonged, the coating needs to be maintained, and the surface treatment effect of the maintained coating directly affects the coating quality and service life. When the anticorrosive coating ages to a certain extent, new coating must be implemented, and first, the corrosion products and aged anticorrosive coating need to be removed. At present, the coating maintenance surface treatment method of in-service equipment, pipelines and steel structures in a refining and chemical enterprise mainly adopts manual cleaning and power tool cleaning. The manual cleaning has low working efficiency and poor cleaning effect, and the power tool cleaning has higher efficiency than manual cleaning, but the old coating cannot be completely cleaned, and the cleaning effect is greatly affected by management level, worker technical level and responsibility.

[0003] Most of the existing methods adopt ultrahigh pressure water jet technology. Specifically, when the ultrahigh pressure water jet technology is used for paint and rust removal, the working pressure is high, and the energy in water is finally converted into heat energy, so that the steel plate and water are at a high temperature. After the operation is completed, the surface will quickly dry, so that the flash rust on the surface of the steel plate is within an acceptable range. There are also mechanical treatment methods such as scrapers and brushes, which can achieve good removal effect in a short time

[0004] Chinese patent CN113732922B discloses a surface cleaner applied to high-altitude metal pipelines, which comprises a walking piece, a cleaning piece, a cross rod and a grinding plate. The walking piece and the cleaning piece are arranged at the same center, the inner wall of the cleaning piece is provided with grinding plates distributed at equal angles, and the grinding plates are installed at the outer end of a vertical shaft. The middle segment of the vertical shaft is rotatably installed in the inner wall of the cleaning piece. An installation box is fixed to the inner wall of the cleaning piece, and the installation box is internally provided with a paddle plate for driving the vertical shaft to rotate. The paddle plate is fixed on the vertical shaft at equal angles. The surface cleaner applied to high-altitude metal pipelines uses the walking and cleaning structure of the walking piece and the cleaning piece to cooperate with each other, utilizes the operation of a single motor and a gas supply structure, and simultaneously realizes the movement of the cleaner on the pipeline and the rust and dust removal cleaning, without the need for workers to manually move, thereby greatly improving the cleaning efficiency of the outer wall of the pipeline.

[0005] The above patent uses a grinding plate for grinding, but it is only suitable for cleaning pipelines with a single diameter, and the rust slag is removed by airflow during cleaning, so it is difficult to control the removal effect, which may cause the phenomenon of rust returning. After the grinding plate is worn out, it is not easy to replace, resulting in low service life of the device. SUMMARY

[0006] Based on the technical problems existing in the background art, the present application provides a multifunctional pipeline surface cleaning device and method, which solves the problems of the device being able to only clean pipelines of a single pipe diameter, being not easy to replace after wear and tear, and being easy to rust after cleaning, and realizes the function of automatic feeding during pipeline cleaning through the structural design of the telescopic assembly, the arc-shaped cleaning brush and the feeding assembly.

[0007] In order to achieve the above-mentioned purpose, the present application provides the following technical solutions:

[0008] The present application claims a multifunctional pipeline surface cleaning device, which comprises a bracket, the upper part of the bracket is in the shape of a horizontal cylinder, a rotating drum is coaxially connected inside the bracket cylinder, a plurality of arc-shaped cleaning brushes are uniformly distributed in the rotating drum, the plurality of arc-shaped cleaning brushes are uniformly distributed along the axis of the rotating drum and have the same curvature direction as the rotating drum, a telescopic assembly is connected between the plurality of arc-shaped cleaning brushes and the rotating drum; one end of the rotating drum is an inlet, and the other end is an outlet; a feeding assembly is installed on the bracket at the inlet end.

[0009] Preferably, the telescopic assembly comprises a toothed rotating wheel rotatably connected to the middle part of the rotating drum, a screw rod installed on the back of each arc-shaped cleaning brush, and a limiting slide rod, one end of the screw rod is detachably installed on the arc-shaped cleaning brush, the other end of the screw rod is screwed with a third gear through a first through hole penetrating the rotating drum, a plurality of third gears are mutually engaged with the toothed rotating wheel; one end of the limiting slide rod is fixed on the arc-shaped cleaning brush, and the other end of the limiting slide rod is slidingly connected to the rotating drum through a second through hole; a driving gear is also engaged with the toothed rotating wheel, the driving gear is fixedly connected to the output end of a second motor, an installation plate is fixed to the rotating drum, and the second motor is fixed to the installation plate.

[0010] A plurality of gear limiting cylinders are fixedly arranged on the outer wall of the rotating drum, the gear limiting cylinders are arranged around the screw rod, one side of the gear limiting cylinder away from the rotating drum is arranged in close contact with one side surface of the third gear, the other side surface of the third gear is in close contact with a gear limiting piece, and the gear limiting piece is fixedly connected to the gear limiting cylinder.

[0011] Preferably, one or more circular support frames are arranged on the outer wall of the rotating drum, a rolling bearing is fixed between the outer edge of each circular support frame and the inner wall of the bracket; a second gear is fixed to the outer wall of the rotating drum at the outlet end, the second gear is engaged with a first gear, the first gear is fixedly connected to the output shaft of a first motor, and the first motor is fixed to the bracket.

[0012] Preferably, the feeding assembly comprises a supporting outer cylinder fixed vertically outside the base cylinder, a supporting inner cylinder is sleeved on the supporting outer cylinder, and the supporting inner cylinder and the supporting outer cylinder are connected telescopically; a mounting seat is fixed to the top of the supporting inner cylinder, a roller shaft is connected to the mounting seat in a horizontal rotating manner, the axis of the roller shaft is perpendicular to the axis of the rotating cylinder; a roller is fixed to the roller shaft, and an output end of a speed reducer is fixed to one end of the roller shaft, and the speed reducer is fixed to the mounting seat.

[0013] Preferably, the arc-shaped cleaning brush comprises an arc-shaped fixed plate, a first brush is fixed axially on the inner arc of the arc-shaped fixed plate in sequence, a second brush is fixed axially on the inner arc of the arc-shaped fixed plate in sequence, and a wiping block is fixed axially on the inner arc of the arc-shaped fixed plate; the first brush is located at the inlet end, the wiping block is located at the outlet end, and the screw rod and the limiting slide rod are installed on the outer arc of the arc-shaped fixed plate.

[0014] Preferably, an arc-shaped groove is formed in the arc-shaped fixed plate at the wiping block end, a plurality of liquid inlet channels are formed in the groove bottom of the arc-shaped groove, the outlet end of the liquid inlet channel is communicated with the wiping block, and clamping grooves are formed on both sides of the arc-shaped groove; a rust-preventive liquid bottle is inserted into the arc-shaped groove, the rust-preventive liquid bottle is provided with a bottle mouth corresponding to the arc-shaped groove, a plurality of liquid outlet pipelines are arranged at the front end of the bottle mouth, the liquid outlet pipelines are communicated with the inlet ends of the liquid inlet channels, clamping blocks are arranged on both sides of the bottle mouth, and the clamping blocks are buckled with the clamping grooves.

[0015] Preferably, a circular groove is formed in one end of the screw rod connected with the arc-shaped cleaning brush, a sleeve fixing hole is symmetrically formed on both sides of the screw rod circular groove; a buckling piece inserted into the screw rod circular groove is fixed to the arc-shaped fixed plate, the buckling piece is in a cylindrical shape, a mounting hole is symmetrically formed in the buckling piece, a first button is mounted in one side of the mounting hole, and a second button is mounted in the other side of the mounting hole; the first button and the second button are slidably mounted in the mounting hole, and the end portions of the first button and the second button extend out of the mounting hole; the first button and the second button are buckled with each other and are jointly sleeved with a spring in the buckling piece; the first button is buckled in one side of the mounting hole, and the second button is buckled in the other side of the mounting hole.

[0016] Preferably, the wiping block and the arc-shaped fixed plate are detachably mounted.

[0017] Preferably, a bearing limiting piece is fixed to the rotating cylinder, a bearing is fixed in the bearing limiting piece, the inner ring of the bearing is fixed to the bearing limiting piece, and the outer ring of the bearing is fixed to the tooth-shaped rotating wheel.

[0018] The application also claims a method for cleaning the surface of a pipeline by using the multifunctional pipeline cleaning device, and the method comprises the following steps:

[0019] S1: one end of the pipeline to be processed is placed on the roller, the height of the supporting inner cylinder is adjusted, the pipeline to be processed is located at the center of the plurality of arc-shaped cleaning brushes, then the supporting inner cylinder and the supporting outer cylinder are fixed, and the pipeline to be processed located outside the device is positioned and supported, so that the pipeline to be processed can not rotate and is always coaxial with the rotating cylinder;

[0020] S2: the pipeline to be processed is adjusted to approach the feeding port, the second motor is started, the second motor drives the driving gear to engage with the toothed rotating wheel, the toothed rotating wheel rotates along the outer wall of the rotating cylinder and engages with the plurality of third gears, at this time, the limiting slide rod limits the rotation of the arc-shaped cleaning brush, so that when the third gear rotates, the screw rod drives the arc-shaped cleaning brush to approach or move away along the axis of the rotating cylinder, and then the plurality of arc-shaped cleaning brushes are adjusted to fully contact the surface of the pipeline to be processed, and the rotation of the second motor is stopped;

[0021] S3: the first motor is driven, the first motor drives the first gear to engage with the second gear, the second gear drives the rotating cylinder and the plurality of arc-shaped cleaning brushes to rotate together, at this time, the arc-shaped cleaning brush cleans the surface layer of the pipeline to be processed; at the same time, the speed reducer is driven to drive the roller to rotate towards the feeding port, so that the pipeline to be processed is gradually moved towards the feeding port; the pipeline is roughly brushed by the first brush, then finely brushed by the second brush, and finally the surface dust is wiped off by the wiping block; at the same time of wiping by the wiping block, the anti-rust liquid in the anti-rust liquid bottle enters the wiping block through the liquid inlet channel to apply the anti-rust liquid to the surface of the pipeline to prevent rust; until the entire pipeline is discharged from the discharge port, the surface cleaning of the pipeline is completed;

[0022] S4: when cleaning the surfaces of different pipelines or the bristles of the arc-shaped cleaning brush are worn, the first button key and the second button key are pinched towards the inside of the buckle piece, the first button key and the second button key are close to each other, the spring is compressed, at this time, the screw rod and the arc-shaped cleaning brush are pulled away from each other, the arc-shaped end of the first button key and the second button key slides out of the sleeving fixing hole, so that the arc-shaped cleaning brush of the new or different pipeline can be removed and replaced, when installing, the first button key and the second button key are pinched towards the inside of the buckle piece, the first button key and the second button key are close to each other, the spring is compressed, at this time, the screw rod and the arc-shaped cleaning brush are buckled, when buckling, the first button key and the second button key slide into the sleeving fixing hole, so that the installation is completed.

[0023] Compared with the prior art, the present application has the following beneficial effects:

[0024] (1) The telescopic assembly of the present application is provided with a screw rod, a limiting slide rod, a third gear and a toothed rotating wheel, and the arc-shaped cleaning brush is connected with the rotating drum. When the surface of the pipeline needs to be cleaned, the pipeline is placed in the middle of the arc-shaped cleaning brush, the second motor is driven, the second motor drives the driving gear to engage with the toothed rotating wheel, at the same time, the toothed rotating wheel drives the plurality of third gears to rotate, the third gears are threadedly connected with the screw rods, and due to the action of the limiting slide rod, the third gears and the screw rods form a screw rod transmission. Therefore, the plurality of screw rods simultaneously drive the connected arc-shaped cleaning brushes to move close to or away from the center of the rotating drum. When the arc-shaped cleaning brush is adjusted to be in full contact with the surface of the pipeline, the rotation of the second motor is stopped, and the telescopic assembly realizes the function of cleaning the surface of the pipeline with different diameters, thereby improving the practicability of the device.

[0025] (2) The device of the present application adopts the engagement of the first gear and the second gear to drive the arc-shaped cleaning brush to rotate with the rotating drum, and the feeding assembly feeds the pipeline. Further, the first bristles of the arc-shaped cleaning brush can brush off the aged anticorrosive coating and the corroded rust on the surface of the pipeline, and the second bristles can thoroughly remove the rust and impurities on the surface of the pipeline. Finally, the pipeline surface is wiped by the wiping block, so that the pipeline surface can be thoroughly cleaned. Further, when wiping, the rust inhibitor in the rust inhibitor bottle flows into the wiping block through the liquid inlet channel, and is wiped on the surface of the pipeline by the wiping block. The wiping block not only has the function of wiping off the rust on the surface of the pipeline, but also applies the rust inhibitor to the surface of the pipeline, thereby completely preventing the pipeline surface from rusting again. The treatment effect is good. Through the feeding of the feeding assembly, the rotation of the arc-shaped cleaning brush and the design of the arc-shaped cleaning brush, the functions of automatic feeding of the pipeline and thorough cleaning of the surface of the pipeline are realized, and the cleaning effect is good.

[0026] (3) The arc-shaped cleaning brush of the present application can be used to clean the surface of different pipelines. When the bristles of the arc-shaped cleaning brush are worn out, the first button key and the second button key can be pinched inward in the buckle piece. The first button key and the second button key are close to each other, and the spring is compressed. At this time, the screw rod and the arc-shaped cleaning brush are pulled away from each other, and the arc-shaped end of the first button key and the second button key slides out of the sleeve fixing hole, so that the arc-shaped cleaning brush can be replaced. When installing, the first button key and the second button key are pinched inward in the buckle piece. The first button key and the second button key are close to each other, and the spring is compressed. At this time, the screw rod and the arc-shaped cleaning brush are buckled with each other. When buckling, the first button key and the second button key slide into the sleeve fixing hole, so that the installation is completed. This structure realizes the replacement of the arc-shaped cleaning brush and can be used to clean the surface of different pipelines. BRIEF DESCRIPTION OF DRAWINGS

[0027] Figure 1 is a schematic view of the overall structure of the discharge end of the multifunctional pipeline surface cleaning device of the present application;

[0028] Figure 2 is the overall structure schematic diagram of the feed inlet end of a multifunctional pipeline surface cleaning device of the present application;

[0029] Figure 3 is the overall structure schematic diagram of the telescopic assembly of a multifunctional pipeline surface cleaning device of the present application;

[0030] Figure 4 is the exploded structure schematic diagram of the telescopic assembly of a multifunctional pipeline surface cleaning device of the present application;

[0031] Figure 5 is the exploded structure schematic diagram of the telescopic assembly of a multifunctional pipeline surface cleaning device of the present application;

[0032] Figure 6 is the overall structure schematic diagram of the feeding assembly of a multifunctional pipeline surface cleaning device of the present application;

[0033] Figure 7 is the side view structure schematic diagram of the arc-shaped cleaning brush of a multifunctional pipeline surface cleaning device of the present application;

[0034] Figure 8 is the structure schematic diagram of the anti-rust liquid bottle of a multifunctional pipeline surface cleaning device of the present application;

[0035] Figure 9 is the cross-sectional structure schematic diagram of the connection between the anti-rust liquid bottle and the arc-shaped cleaning brush of a multifunctional pipeline surface cleaning device of the present application;

[0036] Figure 10 is the overall structure schematic diagram of the connection between the anti-rust liquid bottle and the arc-shaped cleaning brush of a multifunctional pipeline surface cleaning device of the present application;

[0037] Figure 11 is the exploded structure schematic diagram of the connection between the arc-shaped cleaning brush and the screw rod of a multifunctional pipeline surface cleaning device of the present application;

[0038] Figure 12 is the structure schematic diagram of the connection between the arc-shaped cleaning brush and the screw rod of a multifunctional pipeline surface cleaning device of the present application.

[0039] The components are as follows: 100, frame; 200, rotating drum; 300, arc-shaped cleaning brush; 400, telescopic assembly; 500, feeding assembly; 600, feed inlet; 700, discharge outlet; 210, circular support frame; 220, rolling bearing; 230, first through hole; 240, second through hole; 250, bearing limiting component; 260, mounting plate; 310, arc-shaped fixing plate; 320, first brush bristles; 330, second brush bristles; 340, wiping block; 350, rust-preventive liquid bottle; 311, arc-shaped groove; 312, liquid inlet channel; 313, slot; 352, bottle mouth; 353, liquid outlet pipe; 354, locking block. 410. Bearing; 420. Toothed wheel; 430. Screw; 440. Limiting slide bar; 450. Third gear; 460. Gear limiting cylinder; 470. Gear limiting component; 480. Second motor; 490. Drive gear; 431. Sleeve fixing hole; 432. Fastener; 433. Second button; 434. Spring; 435. First button; 436. Mounting hole; 510. Support outer cylinder; 520. Support inner cylinder; 530. Mounting base; 540. Roller shaft; 550. Roller; 560. Gearbox; 610. First gear; 620. First motor; 630. Second gear. Detailed Implementation

[0040] The preferred embodiments of the present invention will be described below with reference to the accompanying drawings. It should be understood that the preferred embodiments described herein are for illustration and explanation only and are not intended to limit the present invention. Furthermore, the embodiments and features in the embodiments of the present invention can be combined with each other without conflict.

[0041] Example 1

[0042] like Figures 1-12 As shown, a multifunctional pipe surface cleaning device includes a frame 100, the upper part of which is a transverse cylindrical shape. A rotating cylinder 200 is coaxially rotatably connected inside the cylindrical body of the frame 100. Multiple arc-shaped cleaning brushes 300 are evenly distributed inside the rotating cylinder 200. The multiple arc-shaped cleaning brushes 300 are evenly distributed along the axis of the rotating cylinder 200, and the arc direction is consistent with the rotating cylinder 200. A telescopic component 400 connects the multiple arc-shaped cleaning brushes 300 to the rotating cylinder 200. One end of the rotating cylinder 200 is a feed inlet 600, and the other end is a discharge outlet 700. A feeding component 500 is installed on the frame 100 located at the feed inlet 600 end.

[0043] The rotary drum 200 is coaxially connected with the frame 100, and the rotary drum 200 can rotate, and when the rotary drum 200 rotates, the plurality of arc-shaped cleaning brushes 300 can be driven to rotate simultaneously. When the device is used to clean the surface of the pipeline, the pipeline is fed from the feeding port 600 end and discharged from the discharging port 700 end, and the feeding assembly 500 is used to feed the pipeline to be cleaned into the middle of the plurality of arc-shaped cleaning brushes 300 for surface cleaning.

[0044] In the embodiment, the telescopic assembly 400 comprises a toothed rotary wheel 420 rotatably connected to the middle of the rotary drum 200, a screw rod 430 and a limiting slide rod 440 mounted on the back of each arc-shaped cleaning brush 300. One end of the screw rod 430 is detachably mounted on the arc-shaped cleaning brush 300, and the other end is screwed with a third gear 450 through the first through hole 230 penetrating the rotary drum 200, and the plurality of third gears 450 are in meshing connection with the toothed rotary wheel 420. One end of the limiting slide rod 440 is fixed on the arc-shaped cleaning brush 300, and the other end is slidingly connected to the rotary drum 200 through the second through hole 240. The toothed rotary wheel 420 is further meshed with a driving gear 490, the driving gear 490 is fixedly connected with the output end of a second motor 480, the rotary drum 200 is fixedly provided with a mounting plate 260, and the second motor 480 is fixedly mounted on the mounting plate 260.

[0045] A plurality of gear limiting cylinders 460 are uniformly fixed on the outer wall of the rotary drum 200, the gear limiting cylinder 460 is sleeved on the outer periphery of the screw rod 430, one side of the gear limiting cylinder 460 away from the rotary drum 200 is in abutting connection with one side surface of the third gear 450, the other side surface of the third gear 450 is in abutting connection with a gear limiting piece 470, and the gear limiting piece 470 is fixedly connected with the gear limiting cylinder 460.

[0046] A telescopic component 400 is provided between the arc-shaped cleaning brush 300 and the rotating drum 200 to adjust the distance from the arc-shaped cleaning brush 300 to the axis, thereby achieving the function of cleaning pipe surfaces of different diameters. Specifically, one end of the screw 430 is connected to the arc-shaped cleaning brush 300, and the other end is threadedly connected to the third gear 450. The third gear 450 meshes with the toothed rotating wheel 420. When the driving gear 490 drives the toothed rotating wheel 420 to rotate, the third gear 450 is threadedly connected to the screw 430. The setting of the limiting slide bar 440 prevents the screw 430 from rotating. Therefore, a screw drive is formed between the screw 430 and the third gear 450. When the third gear 450 rotates, the screw 430 drives the arc-shaped cleaning brush 300 to move back and forth towards the axis of the rotating drum 200, realizing the function of the arc-shaped cleaning brush 300 to clean the surface of different pipe diameters. Furthermore, the gear limiting cylinder 460 and the gear limiting member 470 are used to limit the third gear 450; the end of the screw 430 away from the arc-shaped cleaning brush 300 is provided with a screw head to prevent the screw 430 from unscrewing out of the third gear 450.

[0047] Furthermore, a battery needs to be installed on the outer wall of the rotating drum 200 to supply power to the second motor 480, so as to prevent the rotating drum 200 from tangling the wires when the second motor 480 is connected to an external power source, which would affect its use.

[0048] In this embodiment, one or more circular support frames 210 are provided on the outer wall of the rotating drum 200, and a rolling bearing 220 is fixed between the outer edge of each circular support frame 210 and the inner wall of the frame 100; a second gear 630 is fixed on the outer wall of the rotating drum 200 located at the discharge port 700 end, the second gear 630 meshes with a first gear 610, the first gear 610 is fixedly connected to the output shaft of a first motor 620, and the first motor 620 is fixed on the frame 100.

[0049] The rotating drum 200 and the frame 100 are rotatably connected by a circular support frame 210 and a rolling bearing 220. Specifically, one or more sets of circular support frames 210 and rolling bearings 220 can be set according to actual needs to ensure the stability between the rotating drum 200 and the frame 100. The first motor 620 drives the first gear 610 to mesh with the second gear 630 fixed on the outer wall of the rotating drum 200, realizing the rotation function of the rotating drum 200 and providing power for the rotation of the arc-shaped cleaning brush 300.

[0050] In this embodiment, the feeding assembly 500 includes a supporting outer cylinder 510 vertically fixed to the outside of the frame 100 cylinder body, a supporting inner cylinder 520 sleeved on the supporting outer cylinder 510, and the supporting inner cylinder 520 and the supporting outer cylinder 510 being telescopically connected; a mounting base 530 is fixed to the top of the supporting inner cylinder 520, and a roller shaft 540 is horizontally rotatably connected to the mounting base 530, the axis of the roller shaft 540 being perpendicular to the axis of the rotating drum 200; a roller 550 is fixed on the roller shaft 540, and one end of the roller shaft 540 is fixedly connected to the output end of a reduction motor 560, the reduction motor 560 being fixed on the mounting base 530.

[0051] The outer support cylinder 510 and the inner support cylinder 520 are connected by a telescopic mechanism, enabling the lifting function of the mounting base 530. The height of the mounting base 530 needs to be adjusted according to the outer diameter of the pipe to be processed, ensuring that the pipe is horizontally aligned with the axis of the rotating drum 200. A roller shaft 540 is horizontally rotatably connected to the mounting base 530, and a roller 550 is fixed on the roller shaft 540. The axis of the roller shaft 540 is perpendicular to the axis of the rotating drum 200. When the reduction motor 560 drives the roller shaft 540 to rotate, it can drive the roller 550 to rotate towards the rotating drum 200, conveying the pipe towards the rotating drum 200, thus achieving the feeding function. Specifically, when setting up the conveying system, the pipe located at one end of the inlet 600 needs to be handheld or positioned for support to prevent rotation and ensure it remains coaxial with the rotating drum 200, preventing pipe deviation or non-horizontal alignment, which would affect operation and processing efficiency.

[0052] It should be noted that the supporting outer cylinder 510 and the supporting inner cylinder 520 can be raised and lowered by sliding and fixed by a pin, or by gear and rack meshing transmission, or other methods. These are all existing technologies and will not be elaborated here.

[0053] In this embodiment, the arc-shaped cleaning brush 300 includes an arc-shaped fixing plate 310. A first brush bristle 320, a second brush bristle 330, and a wiping block 340 are axially fixed on the inner arc of the arc-shaped fixing plate 310 in sequence. The first brush bristle 320 is located at the feed inlet 600 end, and the wiping block 340 is located at the discharge outlet 700 end. The screw 430 and the limiting slide bar 440 are installed on the outer arc of the arc-shaped fixing plate 310.

[0054] Both the first bristle 320 and the second bristle 330 are fixed to the inner arc sidewall of the arc-shaped fixing plate 310 by plugging. The first bristle 320 is a dense steel wire bristle, which can remove the aged anti-corrosion coating and corroded rust from the pipe surface. The second bristle 330 is a silicon carbide abrasive filament bristle, which can perform fine brushing to thoroughly remove impurities from the pipe surface. Finally, the pipe surface is wiped by the wiping block 340 to clean the pipe surface and prevent rust and dust from causing the pipe to rust again. It should be noted that the bristles of the arc-shaped cleaning brush 300 can be selected according to the material as needed for cleaning different pipe surfaces. Furthermore, during use, the feeding speed of the feeding component 500 and the rotation speed of the rotating drum 200 can be controlled to ensure that the pipe surface is thoroughly cleaned.

[0055] In this embodiment, an arc-shaped groove 311 is provided on the arc-shaped fixing plate 310 located at the end of the wiping block 340. Multiple liquid inlet channels 312 are provided at the bottom of the arc-shaped groove 311. The outlet end of the liquid inlet channel 312 is connected to the wiping block 340. The arc-shaped groove 311 is provided with slots 313 on both sides. A rust-preventive liquid bottle 350 is inserted into the arc-shaped groove 311. The rust-preventive liquid bottle 350 is provided with a bottle mouth 352 corresponding to the arc-shaped groove 311. Multiple liquid outlet pipes 353 are provided at the front end of the bottle mouth 352. The liquid outlet pipes 353 are connected to the inlet end of the liquid inlet channel 312. A locking block 354 is provided on both sides of the bottle mouth 352. The locking block 354 is fastened to the slot 313.

[0056] When treating rusted metal pipes, a rust-preventive liquid bottle 350 can be connected to the arc-shaped cleaning brush 300. The rust-preventive liquid bottle 350 is inserted into the arc-shaped groove 311 on the arc-shaped cleaning brush 300 through the bottle opening 352. After insertion, the outlet pipe 353 is connected to the inlet channel 312. The rust-preventive liquid in the rust-preventive liquid bottle 350 enters the inlet channel 312 through the outlet pipe 353 and is then injected into the wiping block 340. The wiping block 340 can clean the rust, dust and other debris on the pipe surface by wiping it, and at the same time, rust-preventive liquid can be applied to the pipe surface, which completely prevents the pipe surface from rusting again. When further surface treatment is carried out, the pipe surface has good adhesion.

[0057] In this embodiment, a circular groove is provided at one end of the screw 430 that connects to the arc-shaped cleaning brush 300, and symmetrically arranged fixing holes 431 are provided on both sides of the circular groove of the screw 430; a fastener 432 that is inserted into the circular groove of the screw 430 is fixed on the arc-shaped fixing plate 310, the fastener 432 is cylindrical, and symmetrically arranged mounting holes 436 are provided on the fastener 432, a first button 435 is installed in one mounting hole 436, and the other mounting hole 436 is installed in the other mounting hole 436. A second button 433 is installed inside. Both the first button 435 and the second button 433 are slidably installed in the fastener 432 through the mounting hole 436, and their ends extend out of the mounting hole 436. The first button 435 and the second button 433 located inside the fastener 432 are interlocked and are jointly sleeved with a spring 434. The first button 435 is fastened in the mounting hole 436 on one side, and the second button 433 is fastened in the mounting hole 436 on the other side.

[0058] When cleaning different pipe surfaces, or when the bristles of the arc-shaped cleaning brush 300 are worn, the first button 435 and the second button 433 can be pinched towards the inside of the fastener 432. The first button 435 and the second button 433 move closer together, and the spring 434 is compressed. At this time, pull the arc-shaped cleaning brush 300 away from the screw 430. The arc-shaped ends of the first button 435 and the second button 433 that extend out of the mounting hole 436 slide out of the sleeve fixing hole 431, and can be removed to replace with a new arc-shaped cleaning brush or to clean different pipes. During installation, press and hold the first button 435 and the second button 433, and align the fastener 432 with the screw. When the screw 430 is fastened, the first button 435 and the second button 433 slide into the sleeve fixing hole 431. At this time, the spring 434 is in the extended state, and the two ends of the spring 434 abut against the first button 435 and the second button 433. The limiting rings of the first button 435 and the second button 433 abut against the inner wall of the fastening member 432. The parts of the first button 435 and the second button 433 that extend out of the fastening member 432 are fastened with the circular groove of the screw 430. The screw 430 and the arc-shaped cleaning brush 300 are fixedly connected, and the arc-shaped cleaning brush can be replaced to handle the surface cleaning of different pipes.

[0059] In this embodiment, the wiping block 340 and the arc-shaped fixing plate 310 are detachably installed.

[0060] The wiping block 340 can be installed on the arc-shaped fixing plate 310 by plugging, snapping, or embedding. This makes it easy to disassemble and replace the wiping block 340 when it is covered with dust and cannot be cleaned properly after a period of use, thus increasing the cleanliness of the pipe surface.

[0061] In this embodiment, a bearing limiting member 250 is fixed on the rotating drum 200, and a bearing 410 is fixed in the bearing limiting member 250. The inner ring of the bearing 410 is fixed to the bearing limiting member 250, and the outer ring of the bearing 410 is fixed to the toothed rotating wheel 420.

[0062] The inner ring of the bearing 410 is fixed to the rotating cylinder 200, and the outer ring is fixed to the toothed wheel 420, thus realizing the rotational connection between the rotating cylinder 200 and the toothed wheel 420. The bearing limiting member 250 is used to position the bearing 410.

[0063] Example 2

[0064] A method for cleaning the surface of a pipe using the apparatus of Embodiment 1 includes the following steps:

[0065] S1: Place one end of the pipe to be treated on the roller 550, adjust the height of the inner support cylinder 520 so that the pipe to be treated is located at the center of multiple arc-shaped cleaning brushes 300, fix the inner support cylinder 520 and the outer support cylinder 510, and position and support the pipe to be treated located outside the device so that the pipe to be treated does not rotate and is always coaxial with the rotating drum 200.

[0066] S2: Adjust the pipe to be treated to move closer to the feed inlet 600, turn on the second motor 480, the second motor 480 drives the drive gear 490 to mesh with the toothed wheel 420. When the toothed wheel 420 rotates along the outer wall of the rotating drum 200, it meshes with multiple third gears 450. At this time, the limit slide rod 440 limits the rotation of the arc-shaped cleaning brush 300, so that when the third gear 450 rotates, the screw 430 drives the arc-shaped cleaning brush 300 to move closer or further away from the axis of the rotating drum 200, thereby adjusting the multiple arc-shaped cleaning brushes 300 to fully contact the surface of the pipe to be treated, and then stop the rotation of the second motor 480.

[0067] S3: Drive the first motor 620, which drives the first gear 610 to mesh with the second gear 630. The second gear 630 drives the rotating drum 200 and multiple arc-shaped cleaning brushes 300 to rotate together. At this time, the arc-shaped cleaning brushes 300 clean the surface of the pipe to be treated. At the same time, drive the reduction motor 560 to drive the roller 550 to rotate towards the feed port 600, gradually moving the pipe to be treated towards the feed port 600. The pipe is coarsely brushed by the first brush bristles 320, then finely brushed by the second brush bristles 330, and finally wiped by the wiping block 340 to remove surface dust. While the wiping block 340 is wiping, the rust-preventive liquid in the rust-preventive liquid bottle 350 enters the wiping block 340 through the liquid inlet channel 312 to apply the rust-preventive liquid to the surface of the pipe for rust prevention. The surface cleaning of the pipe is completed when the entire pipe is discharged from the discharge port 700.

[0068] S4: When cleaning different pipe surfaces, or when the bristles of the arc-shaped cleaning brush 300 are worn, pinch the first button 435 and the second button 433 towards the inside of the fastener 432. The first button 435 and the second button 433 will move closer together, and the spring 434 will be compressed. At this time, pull the screw 430 and the arc-shaped cleaning brush 300 away from each other. The arc-shaped ends of the first button 435 and the second button 433 will slide out of the socket fixing hole 431, and the new arc-shaped cleaning brush 300 can be removed and replaced or used to clean different pipes. During installation, pinch the first button 435 and the second button 433 towards the inside of the fastener 432. The first button 435 and the second button 433 will move closer together, and the spring 434 will be compressed. At this time, fasten the screw 430 and the arc-shaped cleaning brush 300 together. When fastening, the first button 435 and the second button 433 will slide into the socket fixing hole 431 to complete the installation.

[0069] Although the present invention has been disclosed above with reference to embodiments, it is not intended to limit the present invention. Any person skilled in the art can make some modifications or alterations to the above-disclosed technical content to create equivalent embodiments without departing from the scope of the present invention. Any simple modifications, equivalent changes and alterations made to the above embodiments based on the technical essence of the present invention without departing from the scope of the present invention shall still fall within the scope of the present invention.

Claims

1. A multifunctional pipeline surface cleaning device comprising a holder (100), characterized in that: The upper part of the frame seat (100) is a transverse cylinder, a rotating drum (200) is coaxially connected inside the cylinder, a plurality of arc-shaped cleaning brushes (300) are uniformly distributed in the rotating drum (200), the plurality of arc-shaped cleaning brushes (300) are uniformly distributed along the axis of the rotating drum (200) and have the same arc direction as the rotating drum (200), and a telescopic assembly (400) is connected between the plurality of arc-shaped cleaning brushes (300) and the rotating drum (200); one end of the rotating drum (200) is a feeding port (600), and the other end is a discharging port (700); a feeding assembly (500) is installed on the frame seat (100) at the feeding port (600) end.

2. A multi-functional pipeline surface cleaning device according to claim 1, characterized in that: The telescopic assembly (400) comprises a toothed rotating wheel (420) rotatably connected to the middle part of the rotating drum (200), a screw rod (430) and a limiting sliding rod (440) installed on the back of each arc-shaped cleaning brush (300), one end of the screw rod (430) is detachably installed on the arc-shaped cleaning brush (300), the other end penetrates the rotating drum (200) through a first through hole (230) and is screwed with a third gear (450), a plurality of third gears (450) are in meshing connection with the toothed rotating wheel (420), one end of the limiting sliding rod (440) is fixed on the arc-shaped cleaning brush (300), and the other end is slidably connected to the rotating drum (200) through a second through hole (240); the toothed rotating wheel (420) is also meshed with a driving gear (490), the driving gear (490) is fixedly connected with the output end of a second motor (480), the rotating drum (200) is fixedly provided with a mounting plate (260), and the second motor (480) is fixedly connected to the mounting plate (260); A plurality of gear limiting cylinders (460) are fixedly arranged on the outer wall of the rotating drum (200), the gear limiting cylinder (460) is arranged on the periphery of the screw rod (430), one side of the gear limiting cylinder (460) away from the rotating drum (200) is attached to one side surface of the third gear (450), the other side surface of the third gear (450) is attached to a gear limiting piece (470), and the gear limiting piece (470) is fixedly connected to the gear limiting cylinder (460).

3. A multi-functional pipeline surface cleaning device according to claim 1, wherein: One or more circular support frames (210) are arranged on the outer wall of the rotating drum (200), a rolling bearing (220) is fixedly arranged between the outer edge of each circular support frame (210) and the inner wall of the frame seat (100), a second gear (630) is fixedly arranged on the outer wall of the rotating drum (200) at the discharging port (700) end, the second gear (630) is meshed with a first gear (610), the first gear (610) is fixedly connected with the output shaft of a first motor (620), and the first motor (620) is fixedly connected to the frame seat (100).

4. The multi-functional pipe surface cleaning device of claim 1, wherein: The feeding assembly (500) comprises a supporting outer cylinder (510) fixed vertically outside the cylinder of the frame base (100), a supporting inner cylinder (520) is sleeved on the supporting outer cylinder (510), and the supporting inner cylinder (520) and the supporting outer cylinder (510) are telescopically connected; an installation seat (530) is fixed at the top of the supporting inner cylinder (520), a roller shaft (540) is horizontally rotatably connected to the installation seat (530), the axis of the roller shaft (540) is perpendicular to the axis of the rotating cylinder (200); a roller (550) is fixed on the roller shaft (540), and the output end of a speed reducer motor (560) is fixedly connected to one end of the roller shaft (540); and the speed reducer motor (560) is fixed on the installation seat (530).

5. A multi-functional pipeline surface cleaning device according to claim 2, wherein: The arc-shaped cleaning brush (300) comprises an arc-shaped fixed plate (310), a first brush (320), a second brush (330) and a wiping block (340) are fixed axially in sequence on the inner arc of the arc-shaped fixed plate (310), the first brush (320) is located at the end of the feeding port (600), the wiping block (340) is located at the end of the discharging port (700), and the screw rod (430) and the limiting slide rod (440) are installed on the outer arc of the arc-shaped fixed plate (310).

6. A multi-functional pipeline surface cleaning device according to claim 5, wherein: An arc-shaped groove (311) is formed in the arc-shaped fixed plate (310) at the end of the wiping block (340), a plurality of liquid inlet channels (312) are formed in the groove bottom of the arc-shaped groove (311), the outlet end of the liquid inlet channel (312) is communicated with the wiping block (340), and clamping grooves (313) are formed on both sides of the arc-shaped groove (311); a rust-proof liquid bottle (350) is inserted into the arc-shaped groove (311), the rust-proof liquid bottle (350) is provided with a bottle mouth (352) corresponding to the arc-shaped groove (311), a plurality of liquid outlet pipelines (353) are arranged at the front end of the bottle mouth (352), the liquid outlet pipelines (353) are communicated with the inlet end of the liquid inlet channel (312), clamping blocks (354) are arranged on both sides of the bottle mouth (352), and the clamping blocks (354) are buckled with the clamping grooves (313).

7. A multi-functional pipeline surface cleaning device according to claim 5, wherein: The screw rod (430) is provided with a circular groove at one end connected with the arc-shaped cleaning brush (300), and the screw rod (430) is provided with a sleeving fixing hole (431) symmetrically at two sides of the circular groove; the arc-shaped fixing plate (310) is fixed with a buckling piece (432) inserted with the circular groove of the screw rod (430), the buckling piece (432) is in a cylindrical shape, and the buckling piece (432) is provided with a mounting hole (436) symmetrically, a first button key (435) is mounted in one side of the mounting hole (436), and a second button key (433) is mounted in the other side of the mounting hole (436), the first button key (435) and the second button key (433) are slidably mounted in the buckling piece (432) through the mounting hole (436), and the end portions thereof are extended out of the mounting hole (436); the first button key (435) and the second button key (433) are buckled with each other and are jointly sleeved with a spring (434) in the buckling piece (432), the first button key (435) is buckled in one side of the mounting hole (436), and the second button key (433) is buckled in the other side of the mounting hole (436).

8. A multi-functional pipeline surface cleaning device according to claim 5, wherein: The wiping block (340) and the arc-shaped fixing plate (310) are detachably mounted.

9. A multi-functional pipeline surface cleaning device according to claim 2, wherein: The rotating drum (200) is fixed with a bearing limiting piece (250), a bearing (410) is fixed in the bearing limiting piece (250), an inner ring of the bearing (410) is fixed with the bearing limiting piece (250), and an outer ring of the bearing (410) is fixed with the tooth-shaped rotating wheel (420).

10. A method of multifunctional pipeline surface cleaning, comprising use of the cleaning device according to any one of claims 1-9, characterized in that: The method comprises the following steps: S1: one end of the pipeline to be treated is placed on the roller (550), the height of the supporting inner cylinder (520) is adjusted, the pipeline to be treated is located at the center of the plurality of arc-shaped cleaning brushes (300), then the supporting inner cylinder (520) and the supporting outer cylinder (510) are fixed, and the pipeline to be treated located outside the device is positioned and supported, so that the pipeline to be treated does not rotate and is always coaxial with the rotating drum (200); S2: the pipeline to be treated is adjusted to approach the feeding port (600), the second motor (480) is started, the second motor (480) drives the driving gear (490) to mesh with the tooth-shaped rotating wheel (420), when the tooth-shaped rotating wheel (420) rotates along the outer wall of the rotating drum (200), the plurality of third gears (450) are meshed, at this time, the limiting slide rod (440) limits the rotation of the arc-shaped cleaning brush (300), so that when the third gear (450) rotates, the screw rod (430) drives the arc-shaped cleaning brush (300) to approach or move away along the axis of the rotating drum (200), and then the plurality of arc-shaped cleaning brushes (300) are adjusted to be in contact with the surface of the pipeline to be treated, and the rotation of the second motor (480) is stopped. S3: drive the first motor (620), the first motor (620) drives the first gear (610) and the second gear (630) meshing, the second gear (630) drives the rotating drum (200) and the plurality of arc-shaped cleaning brushes (300) rotating, at this time, the arc-shaped cleaning brushes (300) perform the surface cleaning of the pipeline to be processed; at the same time, drive the speed reducer motor (560) to drive the roller (550) to rotate towards the feed inlet (600), and gradually move the pipeline to be processed towards the feed inlet (600); the pipeline is roughly brushed by the first brush (320), then finely brushed by the second brush (330), and finally wiped by the wiping block (340); while the wiping block (340) is wiping, the anti-rust liquid in the anti-rust liquid bottle (350) enters the wiping block (340) through the liquid inlet channel (312) to apply the anti-rust liquid to the surface of the pipeline to prevent rust; until the entire pipeline is discharged from the discharge outlet (700), the surface cleaning of the pipeline can be completed; S4: when cleaning the surfaces of different pipelines or the bristles of the arc-shaped cleaning brush (300) are worn, pinch the first button key (435) and the second button key (433) inside the buckling piece (432), the first button key (435) and the second button key (433) are close to each other, the spring (434) is compressed, at this time, the screw rod (430) and the arc-shaped cleaning brush (300) are pulled away from each other, the arc-shaped end of the first button key (435) and the second button key (433) slides out of the sleeving fixing hole (431), so that the arc-shaped cleaning brush (300) can be removed and replaced with a new one or cleaned for different pipelines, when installing, pinch the first button key (435) and the second button key (433) inside the buckling piece (432), the first button key (435) and the second button key (433) are close to each other, the spring (434) is compressed, at this time, the screw rod (430) and the arc-shaped cleaning brush (300) are buckled to each other, when buckling, the first button key (435) and the second button key (433) slide into the sleeving fixing hole (431), so that the installation can be completed.

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