A cleaning device for the inner wall of an open iron drum

Abstract

This invention relates to a cleaning device, and more particularly to a device for cleaning the inner wall of an open-faced iron drum. The technical solution includes: a base plate; a cleaner fixedly connected to the base plate; an electrically controlled telescopic frame fixedly connected to the cleaner; a support fixedly connected to the telescopic end of the electrically controlled telescopic frame; a nozzle rotatably connected to the support around its axis; the cleaner and the nozzle connected via a connecting pipe; a first motor fixedly connected to the support; first row brushes perpendicular to the axial direction of the nozzle on both sides; and second row brushes vertically fixed to the ends of the first row brushes on both sides. This invention significantly reduces the amount of cleaning fluid used, lowers water consumption and water flow resistance, and thus reduces energy consumption through simultaneous brushing and rinsing. Furthermore, the mobile, progressive cleaning method achieves high-quality cleaning. Simultaneously, the radially adjustable design of the first and second row brushes allows this invention to adapt to open-faced iron drums of different diameters, making it widely applicable and convenient to use.

Description

Technical Field

[0001] This invention relates to a cleaning device, and more particularly to a device for cleaning the inner wall of an open iron drum. Background Technology

[0002] Open-face steel drums are widely used packaging containers in the industrial sector for storing and transporting various liquids, powders, or granular materials. Used steel drums have high economic value for recycling; however, thorough cleaning of the interior is essential during recycling to remove residual materials, rust products, and other contaminants, ensuring safety and hygiene requirements for reuse.

[0003] Currently, existing cleaning devices for open-top iron drums use a method of injecting a large amount of water into the drum for cleaning. However, this water-based process has certain drawbacks: First, to ensure cleaning effectiveness, a large amount of water needs to be injected, which is not only inconvenient to operate but also results in significant water consumption. Second, when the cleaning device moves in a large water volume environment, it experiences significant water flow resistance, leading to high motor load and energy consumption. Third, as the cleaning process continues, residual pollutants in the drum dissolve and suspend, gradually turning into a dirty liquid. At this point, the areas to be cleaned are constantly in dirty water, making it easy for pollutants to re-adhere, significantly prolonging the cleaning time in these areas while failing to guarantee a clean result. Fourth, due to the presence of dirty water, a single cleaning often fails to achieve the desired cleanliness, often requiring additional water replacement as a final cleaning step, further slowing down the overall operational efficiency. Summary of the Invention

[0004] In view of the above-mentioned defects in the prior art, the present invention provides an open iron drum inner wall cleaning device that can improve cleaning efficiency and effect and reduce energy consumption.

[0005] The technical solution of the present invention is: a cleaning device for the inner wall of an open iron drum, comprising: a base plate; a cleaner fixedly connected to the base plate for actively pumping cleaning liquid stored therein; an electrically controlled telescopic frame fixedly connected to the cleaner; a support fixedly connected to the telescopic end of the electrically controlled telescopic frame, the support moving horizontally under the drive of the electrically controlled telescopic frame; a nozzle rotatably connected to the support around its axis, the nozzle adopting a fan-shaped structure, with its nozzles evenly arranged along the arc-shaped vertical surface of the fan-shaped structure; the cleaner and the nozzle are connected by a connecting pipe; a first motor fixedly connected to the support, the output shaft of the first motor fixedly connected to the nozzle for driving the nozzle to rotate around its axis; a first row of brushes perpendicular to the axial direction of the nozzle on both sides; and a second row of brushes perpendicularly fixed to the ends of the first row of brushes on both sides respectively.

[0006] Furthermore, the first row of brushes is slidably connected to both sides of the nozzle; the two second row of brushes are slidably connected with staggered bristles; the device also includes: electrically controlled pushers fixedly connected to both sides of the nozzle, the telescopic ends of the two electrically controlled pushers being fixedly connected to the two first row of brushes respectively, for driving the first row of brushes to move radially along the nozzle.

[0007] Furthermore, the bristles of both the first and second row of brushes can be detachably fixed to the brush body.

[0008] Furthermore, the device also includes: two sets of mounting brackets fixedly connected to the base plate, each mounting bracket providing a circular mounting structure, the axis of which is on the same straight line as the rotation axis of the nozzle; three sets of guide sleeves are fixedly connected to the periphery of the circular mounting structure of each mounting bracket, two of which are at the same horizontal height, and the other guide sleeve is located directly below the midpoint of the line connecting the two guide sleeves; a total of three fixed shafts are slidably connected between the corresponding guide sleeves on the two mounting brackets for fixing the open iron barrel from the periphery, the direction of movement of the fixed shafts being along the radial direction of the mounting structure provided by the mounting bracket; and at least three fixed rings are fixedly connected at equal intervals on each fixed shaft.

[0009] Furthermore, the retaining ring is made of an elastic material.

[0010] Furthermore, the device also includes: a first screw slidably disposed on each guide sleeve, each first screw being fixedly connected to both ends of each fixed shaft, the first screw being perpendicular to the fixed shaft and its arrangement direction being along the radial direction of the mounting structure of the mounting frame; a first helical gear rotatably connected inside each guide sleeve, each first helical gear threadedly meshing with each first screw; a helical gear ring rotatably connected to each mounting frame, the helical gear ring coinciding with the center of the mounting structure, all first helical gears in the same mounting frame meshing with the helical gear ring; a support shaft rotatably connected to each mounting frame; a second helical gear fixedly connected to each support shaft, each second helical gear meshing with the corresponding helical gear ring; a drive shaft rotatably connected between two mounting frames; bevel gears fixedly connected to both ends of the drive shaft and to the two support shafts, and the bevel gears at both ends of the drive shaft meshing with the bevel gears on the two support shafts respectively; a second motor fixedly connected to the base plate; the output shaft of the second motor being drively connected to the drive shaft.

[0011] Furthermore, the device also includes: a base, a base plate rotatably connected to the base, the base plate being rotatable relative to the base so that the opening of the open iron barrel fixed between the fixed shafts is obliquely downward; sliding supports are slidably connected to both sides of the base in the horizontal direction; a fixed support is fixedly connected to the bottom of the base plate; a connecting arm is rotatably connected between the sliding support and the fixed support located on the same side, the two ends of the connecting arm being hinged to the sliding support and the fixed support respectively; second screws are rotatably connected to both sides of the base, the second screws are connected in a transmission connection, and the two second screws are threadedly engaged with the two sliding supports respectively; a third motor is fixedly connected inside the base, and the output shaft of the third motor is coaxially fixedly connected to one of the second screws.

[0012] Furthermore, both the base plate and the base are equipped with drainage channels.

[0013] The beneficial effects are: by simultaneously brushing and rinsing, the present invention significantly reduces the amount of cleaning solution used, lowers water consumption and water flow resistance, thereby reducing energy consumption, and the mobile progressive cleaning can achieve high-quality cleaning; at the same time, the radially adjustable design of the first and second row brushes allows the present invention to be adapted to open iron drums of different diameters, making it widely applicable and convenient to use.

[0014] This invention enables the automatic centering and alignment of open iron drums by using multiple fixed shafts that move radially in sync and their elastic fixing rings. This significantly improves clamping stability and assembly / disassembly efficiency, while the elastic structure reduces clamping damage. Simultaneously, the automatic alignment with the nozzle axis ensures the accuracy of subsequent brushing and rinsing processes, thereby further improving the overall cleaning quality and work efficiency.

[0015] This invention utilizes a tiltable base plate and drainage channel design to actively control the tilt angle of the open iron drum, enabling rapid and centralized discharge of cleaning wastewater. This avoids dirty water remaining in the drum and affecting subsequent cleaning, while eliminating the need for additional drum transfer, significantly improving the convenience of wastewater discharge and the continuity of the overall cleaning process. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of the present invention.

[0017] Figure 2 This is a schematic diagram showing the positional structure of the nozzle, the first row of brushes, and the second row of brushes in this invention.

[0018] Figure 3 This is a schematic diagram of the first and second row brushes in the unfolded state of the present invention.

[0019] Figure 4 This is a schematic diagram of the connection structure of the fixed shaft in this invention.

[0020] Figure 5This is a partial view of the connection structure of the guide sleeve, the first screw and the first helical gear in this invention.

[0021] Figure 6 This is a cross-sectional view showing the positional structure of the fixed support, sliding support, and connecting arm in this invention.

[0022] Figure 7 This is a schematic diagram showing the state of the base plate rotating relative to the base in this invention.

[0023] Component names and serial numbers in the diagram: 01_Base plate, 02_Washer, 03_Electrically controlled telescopic frame, 04_Bracket, 05_Spray head, 06_Connecting pipe, 07_First motor, 08_First row brush, 09_Second row brush, 10_Electrically controlled push frame, 11_Mounting bracket, 12_Guide sleeve, 13_Fixed shaft, 14_Fixed ring, 15_First screw, 16_First helical gear, 17_Helical gear ring, 18_Support shaft, 19_Second helical gear, 20_Drive shaft, 21_Bevel gear, 22_Second motor, 23_Straight gear, 24_Base, 25_Sliding support, 26_Fixed support, 27_Connecting arm, 28_Second screw, 29_Third motor, 30_Synchronous belt assembly. Detailed Implementation

[0024] The present invention will now be described in detail with reference to the accompanying drawings and specific embodiments.

[0025] Example: A device for cleaning the inner wall of an open-faced iron drum, such as... Figures 1-3As shown, the system includes: a base plate 01; a cleaner 02 fixedly mounted on the base plate 01 for actively pumping cleaning fluid stored therein; an electrically controlled telescopic frame 03 fixedly mounted on the cleaner 02; a bracket 04 fixedly mounted on the telescopic end of the electrically controlled telescopic frame 03, which moves horizontally under the drive of the electrically controlled telescopic frame 03; a nozzle 05 rotatably mounted on the bracket 04 around its axis, the nozzle 05 having a fan-shaped structure, with its nozzles evenly arranged along the arc-shaped vertical surface of the fan-shaped structure, so that the spray range of the nozzle 05 is a fan-shaped area; the cleaner 02 and the nozzle 05 are connected by a connecting pipe 06. Specifically, interconnected channels are embedded inside the electrically controlled telescopic frame 03 and the bracket 04, the connecting pipe 06 is connected to the channel inlet inside the electrically controlled telescopic frame 03, and the channel outlet is connected to the nozzle 05. This enables the delivery of cleaning fluid. A first motor 07 is fixedly installed on the bracket 04, and the output shaft of the first motor 07 is fixedly connected to the nozzle 05 to drive the nozzle 05 to rotate around its axis. A first row of brushes 08 is slidably installed on both sides of the nozzle 05 perpendicular to the axial direction of the nozzle 05. A second row of brushes 09 is vertically fixed to the ends of the first row of brushes 08 on both sides, and the two second row of brushes 09 are slidably connected with staggered bristles. Electrically controlled pushers 10 are symmetrically fixed on both sides of the nozzle 05, and the telescopic ends of the two electrically controlled pushers 10 are fixedly connected to the two first row of brushes 08 to drive the first row of brushes 08 to move radially along the nozzle 05. The bristles of the first row of brushes 08 and the second row of brushes 09 are detachably fixed to the brush body using a snap-fit ​​structure to facilitate cleaning and replacement of worn bristles.

[0026] When using this equipment, first add an appropriate amount of cleaning solution to the cleaner 02. Then, fix the open iron barrel to be cleaned horizontally on the base 24, ensuring its opening faces the nozzle 05, and adjust its position so that the axis of the nozzle 05 coincides with the axis of the open iron barrel. Start the electrically controlled push frame 10 to drive each of the first row of brushes 08 to move, symmetrically unfolding until the bristles of the first row of brushes 08 contact the inner wall of the open iron barrel. At the same time, the length of the second row of brushes 09 reaches the inner diameter of the open iron barrel. Then, start the cleaner 02 and the first motor 07. The first motor 07 drives the nozzle 05, the first row of brushes 08, and the second row of brushes 09 to rotate at high speed, performing a rotating scrubbing of the inner wall of the open iron barrel. Simultaneously, the cleaner 02 outputs cleaning solution, which is sequentially delivered to the nozzle 05 through the connecting pipe 06 and the channels in the electrically controlled telescopic frame 03 and the bracket 04. The nozzle 05 sprays the solution evenly in a fan-shaped spray range, thereby providing continuous cleaning solution rinsing during the scrubbing process and pre-wetting the areas inside the barrel that have not yet been cleaned. Activate the electrically controlled telescopic frame 03, driving the nozzle 05, first row brush 08, and second row brush 09 to gradually move deeper into the bucket, shifting the cleaning area from the bucket opening to the bottom. When the second row brush 09 contacts the inner bottom surface of the open-top iron bucket, it performs a concentrated and comprehensive scrubbing of the bottom. After cleaning, operate the electrically controlled telescopic frame 03 to retract, withdrawing the first row brush 08 and second row brush 09 from the bucket. During this retraction, the cleaning fluid further rinses away any remaining wastewater in the bucket, improving the overall cleanliness. Furthermore, the movement speed of the telescopic frame 03 can be adjusted according to the degree of dirt on the open-top iron bucket to achieve targeted cleaning.

[0027] In summary, this equipment significantly reduces the amount of cleaning solution used, lowers water consumption and water flow resistance by simultaneously performing brushing and rinsing, thereby reducing energy consumption. Furthermore, the mobile progressive cleaning can achieve high-quality cleaning. At the same time, the radially adjustable design of the first row of brushes 08 and the second row of brushes 09 allows this equipment to be adapted to open iron drums of different diameters, making it widely applicable and easy to use.

[0028] like Figure 1 , Figure 4 and Figure 5As shown, the device also includes: two sets of mounting brackets 11 fixedly mounted on the base plate 01. Each mounting bracket 11 provides a circular mounting structure, the axis of which is on the same straight line as the rotation axis of the nozzle 05. Three sets of guide sleeves 12 are fixedly mounted on the periphery of the circular mounting structure of each mounting bracket 11, two of which are at the same horizontal height and the other is located directly below the midpoint of the line connecting the two guide sleeves 12. A total of three fixed shafts 13 are slidably mounted between the corresponding guide sleeves 12 on the two mounting brackets 11 for fixing the open iron barrel from the periphery. The direction of movement of the fixed shafts 13 is along the radius of the mounting structure provided by the mounting bracket 11. At least three fixing rings 14 are fixedly mounted at equal intervals on each fixed shaft 13. The fixing rings 14 are made of elastic material, such as rubber, which improves the fixing stability of the open iron barrel by increasing friction and providing elastic deformation pressure, and reduces the damage to the open iron barrel during the clamping process.

[0029] like Figure 1 , Figure 4 and Figure 5 As shown, the device further includes: a first screw 15 slidably disposed on each guide sleeve 12, each first screw 15 being fixed to both ends of each fixed shaft 13, the first screw 15 being perpendicular to the fixed shaft 13, and its arrangement direction being along the radial direction of the mounting structure provided by the mounting frame 11; a first helical gear 16 being rotatably mounted inside each guide sleeve 12, each first helical gear 16 being threadedly engaged with each first screw 15 to convert its own rotational motion into axial movement of the first screw 15; a helical gear ring 17 being rotatably mounted on each mounting frame 11, the helical gear ring 17 coinciding with the center of the mounting structure provided by the mounting frame 11, and all the first helical gears 16 in the same mounting frame 11 being engaged with the helical gear ring 17; each mounting frame 11... Each support shaft 18 is rotatably mounted; a second helical gear 19 is fixedly mounted on each support shaft 18, and each second helical gear 19 meshes with the corresponding helical gear ring 17; a drive shaft 20 is rotatably mounted between the two mounting brackets 11; bevel gears 21 are fixedly mounted on both ends of the drive shaft 20 and on both support shafts 18, and the bevel gears 21 at both ends of the drive shaft 20 mesh with the bevel gears 21 on the two support shafts 18 respectively, so that the drive shaft 20 can synchronously drive the two support shafts 18 to rotate; a second motor 22 is fixedly mounted on the base plate 01; a spur gear 23 is fixedly mounted on both the output shaft of the second motor 22 and the drive shaft 20, and the two spur gears 23 mesh with each other to realize the transmission connection between the second motor 22 and the drive shaft 20.

[0030] The second motor 22 is started, transmitting rotational power to the drive shaft 20 via the spur gear 23. The drive shaft 20 then drives the two support shafts 18 to rotate synchronously via the bevel gear 21. Each support shaft 18 drives the corresponding helical gear ring 17 to rotate synchronously via the second helical gear 19. Each helical gear ring 17 ultimately drives all the first helical gears 16 to rotate synchronously. The rotating first helical gears 16 drive the fixed shafts 13 to move synchronously radially through threaded engagement with each first screw 15. When all the fixed shafts 13 move synchronously towards the center, the open iron barrel centered between the fixed shafts 13 can be clamped and fixed; conversely, when the fixed shafts 13 move synchronously away from the center, the fixing of the open iron barrel can be released.

[0031] When fixing the open iron barrel, first control all fixing shafts 13 to move centrifugally, place the open iron barrel between each fixing shaft 13, and provide initial support by each fixing shaft 13; then control all fixing shafts 13 to move centripetally, so that the open iron barrel can be automatically centered and fixed, and the centering with the nozzle 05 can be completed conveniently and quickly.

[0032] This equipment, through multiple fixed shafts 13 that move radially in sync and their elastic fixing rings 14, can quickly achieve automatic centering and alignment of open iron drums. On the one hand, it significantly improves the stability of clamping and the efficiency of assembly and disassembly. On the other hand, it uses the elastic structure to reduce clamping damage. At the same time, it automatically aligns with the axis of the nozzle 05 to ensure the accuracy of subsequent brushing and rinsing processes, thereby further improving the overall cleaning quality and work efficiency.

[0033] like Figure 1 , Figure 6 and Figure 7 As shown, the device also includes: a base 24, with a base plate 01 rotatably mounted on the base 24. The base plate 01 can rotate relative to the base 24, causing the opening of the open iron barrel fixed between the fixed shafts 13 to face downwards at an angle. Both the base plate 01 and the base 24 are provided with drainage grooves to facilitate sewage discharge. Sliding supports 25 are slidably mounted on both sides of the base 24 in the horizontal direction. A fixed support 26 is fixedly mounted on the bottom of the base plate 01. A connecting arm 27 is rotatably mounted between the sliding support 25 and the fixed support 26 on the same side, with both ends of the connecting arm 27 hinged to the sliding support 25 and the fixed support 26, respectively. Second screws 28 are rotatably mounted on both sides of the base 24, and the two second screws 28 are threadedly engaged with the two sliding supports 25, respectively. A third motor 29 is fixedly mounted inside the base 24, and the output shaft of the third motor 29 is coaxially fixedly connected to one of the second screws 28. A synchronous belt group 30 is provided between the two second screws 28 to achieve synchronous rotation between them.

[0034] The third motor 29 is started, driving the second screw 28 connected to it to rotate, which in turn drives the sliding support 25 to move horizontally. When the sliding support 25 moves, it drives the lower end of the connecting arm 27 to move accordingly. The upper end of the connecting arm 27 drives the fixed support 26 of the base plate 01, which can change the tilt angle of the connecting arm 27. This drives the base plate 01 to rotate and tilt relative to the base 24, so that the opening of the open iron barrel is tilted downward. The cleaning waste liquid in the barrel can then be discharged quickly and smoothly through the drainage channel on the base plate 01 and the base 24 under the action of gravity.

[0035] This equipment, through its tiltable base plate 01 and drainage channel design, enables active control of the tilt angle of the open iron drum, allowing for rapid and centralized discharge of cleaning wastewater. This prevents dirty water from remaining in the drum and affecting subsequent cleaning, while eliminating the need for additional drum transfer, significantly improving the convenience of wastewater discharge and the continuity of the overall cleaning process.

[0036] The above description is merely a specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in the present invention should be included within the scope of protection of the present invention. Therefore, the scope of protection of the present invention should be determined by the scope of the claims.

Claims

1. A cleaning device for the inner wall of an open-faced iron drum, characterized in that, include: Base plate (01); A cleaner (02) is fixedly connected to the base plate (01) for actively pumping the cleaning liquid stored therein; An electrically controlled telescopic frame (03) is fixedly connected to the cleaner (02); a bracket (04) is fixedly connected to the telescopic end of the electrically controlled telescopic frame (03), and the bracket (04) moves horizontally under the drive of the electrically controlled telescopic frame (03); a nozzle (05) is rotatably connected to the bracket (04) around its axis, the nozzle (05) adopts a fan-shaped structure, and its nozzles are evenly arranged along the arc-shaped vertical surface of the fan-shaped structure; the cleaner (02) and the nozzle (05) are connected through a connecting pipe (06); a first motor (07) is fixedly connected to the bracket (04), and the output shaft of the first motor (07) is fixedly connected to the nozzle (05) for driving the nozzle (05) to rotate around its axis; a first row of brushes (08) is provided on both sides of the nozzle (05) perpendicular to the axial direction of the nozzle (05); a second row of brushes (09) is fixedly fixed at the ends of the first row of brushes (08) on both sides respectively.

2. The open-face iron drum inner wall cleaning device according to claim 1, characterized in that, The first row of brushes (08) is slidably connected to both sides of the nozzle (05); the two second row of brushes (09) are slidably connected to each other with staggered bristles; the device also includes: an electric control pusher (10) fixedly connected to both sides of the nozzle (05), the telescopic ends of the two electric control pushers (10) being fixedly connected to the two first row of brushes (08) respectively, for driving the first row of brushes (08) to move radially along the nozzle (05).

3. The equipment for cleaning the inner wall of an open iron drum according to claim 2, characterized in that, The bristles of both the first row of brushes (08) and the second row of brushes (09) can be detachably fixed to the brush body.

4. The open-face iron drum inner wall cleaning device according to claim 1, characterized in that, The device further includes: two sets of mounting brackets (11) fixedly connected to the base plate (01), the mounting brackets (11) providing a circular mounting structure, the axis of the mounting structure being on the same straight line as the rotation axis of the nozzle (05); three sets of guide sleeves (12) are fixedly connected to the periphery of the circular mounting structure of each mounting bracket (11), two of the guide sleeves (12) being at the same horizontal height, and the other guide sleeve (12) being directly below the midpoint of the line connecting the two guide sleeves (12); a total of three fixed shafts (13) are slidably connected between the corresponding guide sleeves (12) on the two mounting brackets (11) for fixing the open iron barrel from the periphery, the moving direction of the fixed shafts (13) being along the radial direction of the mounting structure provided by the mounting bracket (11); and at least three fixed rings (14) are fixedly connected at equal intervals on each fixed shaft (13).

5. The equipment for cleaning the inner wall of an open iron drum according to claim 4, characterized in that, The retaining ring (14) is made of elastic material.

6. The open-face iron drum inner wall cleaning device according to claim 4, characterized in that, The device further includes: a first screw (15) slidably disposed on each guide sleeve (12), each first screw (15) being fixedly connected to both ends of each fixed shaft (13), the first screw (15) being perpendicular to the fixed shaft (13), and its arrangement direction being along the radial direction of the mounting structure of the mounting frame (11); a first helical gear (16) being rotatably connected inside each guide sleeve (12), each first helical gear (16) being threadedly engaged with each first screw (15); a helical gear ring (17) being rotatably connected on each mounting frame (11), the helical gear ring (17) coinciding with the center of the mounting structure, and all the first helical gears (16) in the same mounting frame (11) being engaged with the helical gear ring. (17) Meshing; each mounting bracket (11) is rotatably connected to a support shaft (18); each support shaft (18) is fixedly connected to a second helical gear (19), and each second helical gear (19) meshes with the corresponding helical gear ring (17); a drive shaft (20) is rotatably connected between the two mounting brackets (11); both ends of the drive shaft (20) and the two support shafts (18) are fixedly connected to bevel gears (21), and the bevel gears (21) at both ends of the drive shaft (20) mesh with the bevel gears (21) on the two support shafts (18); a second motor (22) is fixedly connected to the base plate (01); the output shaft of the second motor (22) is connected to the drive shaft (20) for transmission.

7. The equipment for cleaning the inner wall of an open iron drum according to claim 1, characterized in that, The device further includes: a base (24), a base plate (01) rotatably connected to the base (24), the base plate (01) being rotatable relative to the base (24) so ​​that the opening of the open iron barrel fixed between the fixed shafts (13) is obliquely downward; sliding supports (25) are slidably connected to both sides of the base (24) in the horizontal direction; a fixed support (26) is fixedly connected to the bottom of the base plate (01); a connecting arm (27) is rotatably connected between the sliding support (25) and the fixed support (26) located on the same side, and the two ends of the connecting arm (27) are respectively hinged to the sliding support (25) and the fixed support (26); a second screw (28) is rotatably connected to both sides of the base (24), the second screws (28) are connected in transmission, and the two second screws (28) are respectively threadedly engaged with the two sliding supports (25); a third motor (29) is fixedly connected inside the base (24), and the output shaft of the third motor (29) is coaxially fixedly connected to one of the second screws (28).

8. The open-face iron drum inner wall cleaning device according to claim 7, characterized in that, Both the base plate (01) and the base (24) are equipped with drainage grooves.

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