Chemical container inner wall cleaning device

By designing a chemical container inner wall cleaning device, which utilizes servo motors and gear sets to achieve automated cleaning, the problems of high safety risks and low efficiency in cleaning sediments on the inner walls of chemical containers have been solved, achieving safe and efficient inner wall cleaning.

CN121314985APending Publication Date: 2026-01-13PERIC SPECIAL GASES CO LTD
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Patent Information

Application Number
CN202511576609.8
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2025-10-31
Publication Date
2026-01-13

AI Technical Summary

Technical Problem

Chemical containers tend to accumulate deposits on their inner walls after prolonged use. Existing cleaning methods require operators to directly contact the materials, posing safety risks and being inefficient.

Method used

Design a chemical container inner wall cleaning device, which uses a feed servo motor and gear set to drive the cleaning component to automatically enter the container, and combines a rotary servo motor and a small motor to realize the rotation and lifting of the cleaning component, and is equipped with an interception component to automatically collect the cleaning waste.

Benefits of technology

It enables automated cleaning of the inner walls of chemical containers, reducing safety risks for operators, improving cleaning efficiency, and avoiding dust pollution.

✦ Generated by Eureka AI based on patent content.

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Abstract

The invention relates to the technical field of chemical engineering, in particular to a chemical container inner wall cleaning device. According to the technical scheme, the cleaning device for the inner wall of the chemical container comprises a container sealing cover and a feeding servo motor fixed to the container sealing cover, a first gear set is installed on the sealing cover, a feeding lead screw penetrates through the container sealing cover, and the feeding servo motor controls the feeding lead screw to move up and down through transmission of the first gear set; the lower end of the feeding lead screw is fixedly connected with a motor support through a bearing seat assembly, a rotating servo motor is fixedly installed on the motor support, an output shaft of the rotating servo motor is connected with a rotating shaft through a coupler, the lower portion of the rotating shaft is fixedly connected with a small motor support, the small motor support is connected with a rotating shaft, and the rotating shaft is connected with a cleaning assembly. The cleaning assembly is driven to rotate. The cleaning assembly can be contracted and can enter the container from a small manhole flange, the inner wall of the container can be automatically cleaned, and the purposes of improving the working efficiency and reducing the labor force of workers are achieved.
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Description

TECHNICAL FIELD

[0001] The present application relates to the chemical industry field, and in particular to a chemical container inner wall cleaning device. BACKGROUND

[0002] After long-term use, the inner wall of the chemical container is prone to deposit, residue, solid particles and other substances. When the inner wall of the container needs to be cleaned, the operator often needs to use a long tool to put the upper body into the container; when the equipment is high, the operator even needs to enter the container for cleaning. In the above two cleaning methods, the operator may contact the material and consume a lot of physical labor. When the material is toxic, the operator's operation risk is large, and the cleaning efficiency is low. The cleaning reaction kettle in Chinese patent CN214439004U has poor cleaning effect, and the tank body with more solid waste residues cannot be effectively cleaned.

[0003] To solve the above problems, a device is needed that can clean the inner wall of the chemical container automatically without the operator directly contacting the material. SUMMARY

[0004] The present application provides a chemical container inner wall cleaning device, which solves the problem that the operator may contact the material and consume a lot of physical labor in the prior art, and when the material is toxic, the operator's operation risk is large, and the cleaning efficiency is low.

[0005] To solve the above technical problems, the technical solution adopted by the present application is:

[0006] A chemical container inner wall cleaning device, comprising a container sealing cover and a feeding servo motor fixed on the container sealing cover, a gear set one is installed on the sealing cover, a feeding screw passes through the container sealing cover, the feeding servo motor drives the feeding screw to move up and down through the gear set one, the lower end of the feeding screw is fixedly connected with the motor support through a bearing seat assembly, a rotating servo motor is fixedly installed on the motor support, the output shaft of the rotating servo motor is connected with a rotating shaft through a shaft coupling, the lower part of the rotating shaft is fixedly connected with a small motor bracket, the small motor bracket is connected with a rotating shaft, a cleaning assembly is connected on the rotating shaft to drive the cleaning assembly to rotate.

[0007] Further, the gear set one comprises a first gear and a second gear, the first gear is fixedly connected with the output shaft of the feeding servo motor, the second gear is rotatably installed on the container sealing cover, the second gear meshes with the first gear, the inner ring surface of the second gear has internal threads, the feeding screw passes through the internal threads of the inner ring surface of the second gear, and the internal threads of the second gear are threadedly connected with the surface of the feeding screw.

[0008] Furthermore, the container sealing cap is equipped with a fixed support plate inside, and the fixed support plate has a threaded hole in the middle. The feed screw passes through the threaded hole, and the fixed support plate restricts the radial displacement of the feed screw to maintain stability.

[0009] Furthermore, a small motor is installed inside the small motor bracket, and three small lead screws pass through the small motor bracket. The small motor drives the three small lead screws to rise and fall through a gear set two. A slide is installed at the bottom of the three small lead screws, and the slide moves on the rotating shaft. The slide is connected to the cleaning component.

[0010] Furthermore, the second gear set includes one driving gear and three driven gears. The driving gear is fixed to the output shaft of the small motor, and the three driven gears are rotatably mounted on the small motor bracket. The inner ring surface of the driven gear has internal threads, and the three small lead screws pass through the inner rings of the three driven gears respectively. The three small lead screws are threadedly connected to the three driven gears respectively, controlling the three small lead screws to move up and down.

[0011] Furthermore, the slide has a convex strip inside, and the rotating shaft has a concave groove. The convex strip and the concave groove cooperate to prevent relative rotation between the slide and the rotating shaft.

[0012] Furthermore, the cleaning assembly includes three connecting rods. The first end of the connecting rod is hinged to the slide block, the second end of the connecting rod is hinged to the shovel handle, the first end of the shovel handle is hinged to the top cap, the top cap is installed at the bottom end of the rotating shaft, and the second end of the shovel handle is connected to a cleaning shovel. The slide block moves up and down, which can drive the cleaning shovel to retract and unfold.

[0013] Furthermore, the lower end of the container sealing cap is a flange that matches the container manhole, which can fix the container sealing cap to the manhole flange and provide overall support.

[0014] Furthermore, it also includes an interception assembly, which includes a propulsion sleeve, a propulsion disk, pressure rods, a connecting disk, and sector plates. The propulsion sleeve is slidably sleeved on the outer surface of the rotating shaft, and the top end of the propulsion sleeve is connected to the top cap. The propulsion disk is rotatably mounted on the lower end of the propulsion sleeve. Multiple pressure rods are provided, and the multiple pressure rods are equidistantly mounted on the outer ring surface of the propulsion disk. The connecting disk is rotatably mounted on the bottom end of the rotating shaft. Multiple sector plates are provided, and the bottom end of each sector plate is hinged to the connecting disk. An elastic connecting cloth is connected between two adjacent sector plates, and the bottom end of the elastic connecting cloth is connected to the connecting disk.

[0015] Furthermore, the end of the pressure rod away from the propulsion disc is arc-shaped.

[0016] The positive effects of this invention are:

[0017] 1. The cleaning assembly is retractable, allowing access to the container interior through a smaller manhole flange, thus automating the cleaning of the container's inner wall, improving work efficiency, and reducing manual labor.

[0018] 2. The cleaning process does not require operators to approach the cleaning site, reducing the harm of chemicals inside the container to operators;

[0019] 3. The container remains closed throughout the cleaning process to prevent dust generated during the cleaning process from polluting the environment. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the first structure of the chemical container inner wall cleaning device of the present invention;

[0021] Figure 2 This is a schematic diagram of the second structure of the chemical container inner wall cleaning device of the present invention;

[0022] Figure 3 This is a schematic diagram of the first structure of the cleaning component in this invention;

[0023] Figure 4 This is a schematic diagram of the second structure of the cleaning component in this invention;

[0024] Figure 5 This is a schematic diagram of the third structure of the cleaning component in this invention;

[0025] Figure 6 This is a schematic diagram of the fixed support plate structure in this invention;

[0026] Figure 7 This is a schematic diagram of the third structure of the chemical container inner wall cleaning device of the present invention;

[0027] Figure 8 This is a schematic diagram of the first structure of the interception component in this invention;

[0028] Figure 9 This is a schematic diagram of the second structure of the interception component in this invention;

[0029] Figure 10 This is a schematic diagram of the third structure of the interception component in this invention;

[0030] In the picture:

[0031] 1. Container sealing cap; 2. Feed servo motor; 3. Gear set one; 4. Feed screw; 5. Bearing housing assembly; 6. Motor support; 7. Rotary servo motor; 8. Coupling; 9. Rotating shaft; 10. Small motor bracket; 11. Small motor; 12. Gear set two; 13. Small screw; 14. Slide; 15. Rotating shaft; 16. Cleaning assembly; 101. Fixed support plate; 1601. Connecting rod; 1602. Shovel handle; 1603. Top cap; 1604. Cleaning shovel; 17. Push sleeve; 18. Push disc; 19. Pressure rod; 20. Connecting disc; 21. Sector plate; 22. Elastic connecting cloth. Detailed Implementation

[0032] The technical solutions of the present invention will be clearly and completely described below with reference to the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present invention.

[0033] Example 1

[0034] like Figures 1-6 As shown, a chemical container inner wall cleaning device includes a container sealing cover 1 and a feed servo motor 2 fixed on the container sealing cover. A gear set 3 is installed on the sealing cover 1. A feed screw 4 passes through the container sealing cover 1. The feed servo motor 2 controls the feed screw 4 to move up and down through the gear set 3. The lower end of the feed screw 4 is fixedly connected to the motor support 6 through a bearing seat assembly 5. A rotary servo motor 7 is fixedly installed on the motor support 6. The output shaft of the rotary servo motor 7 is connected to a rotating shaft 9 through a coupling 8. The lower part of the rotating shaft 9 is fixedly connected to a small motor bracket 10. The small motor bracket 10 is connected to a rotating shaft 15. A cleaning component 16 is connected to the rotating shaft 15, driving the cleaning component 16 to rotate.

[0035] In actual use, the lower end of the container sealing cap 1 is a flange that matches the container manhole, which can fix the container sealing cap on the manhole flange and provide support for the whole.

[0036] When cleaning of a chemical container is required, the feed servo motor 2 drives the feed screw 4 to rotate via the gear set 3. After the feed screw 4 rotates, it drives the bearing housing assembly 5, motor support 6, rotary servo motor 7, coupling 8, rotating shaft 9, small motor bracket 10, rotating shaft 15 and cleaning assembly 16 connected to its lower end to move downward. Then the cleaning assembly 16 moves downward and enters the interior of the chemical container. The cleaning assembly 16 then unfolds and contacts the inner wall of the chemical container. Subsequently, the rotary servo motor 7 drives the cleaning assembly 16 to rotate, so that the cleaning assembly 16 rotates and cleans the chemical container.

[0037] The gear set 3 includes a first gear and a second gear. The first gear is fixed to the output shaft of the feed servo motor 2, and the second gear is rotatably mounted on the container sealing cover 1. The second gear meshes with the first gear. The inner ring surface of the second gear has an internal thread. The feed screw 4 passes through the internal thread of the inner ring surface of the second gear, and the internal thread of the second gear is threaded to the surface of the feed screw 4.

[0038] The feed servo motor 2 is driven by gear set 3. The inner diameter surface of the second gear in gear set 3 has internal threads, which control the feed screw 4 to move up and down, thereby driving the cleaning component 16 to lift and lower.

[0039] The container sealing cap 1 is equipped with a fixed support plate 101. The fixed support plate 101 has a threaded hole in the middle. The feed screw 4 passes through the threaded hole. The fixed support plate 101 restricts the radial displacement of the feed screw 4 and maintains stability. The fixed support plate 101 has a threaded hole in the middle to restrict the radial displacement of the feed screw 4 and reduce vibration during the cleaning process.

[0040] A small motor 11 is installed inside the small motor bracket 10. Three small lead screws 13 pass through the small motor bracket 10. The small motor 11 drives the three small lead screws 13 to rise and fall through the gear set 2 12. A slide block 14 is installed at the bottom of the three small lead screws 13. The slide block 14 moves on the rotating shaft 15. The slide block 14 is connected to the cleaning component 16.

[0041] Gear set 2 12 includes one driving gear and three driven gears. The driving gear is fixed to the output shaft of the small motor 11, and the three driven gears are rotatably mounted on the small motor bracket 10. The inner ring surface of the driven gear has internal threads, and three small lead screws 13 pass through the inner rings of the three driven gears respectively. The three small lead screws 13 are threadedly connected to the three driven gears respectively, controlling the up and down movement of the three small lead screws 13.

[0042] The slide 14 has a convex strip inside, and the rotating shaft 15 has a concave groove. The convex strip and the concave groove cooperate to prevent relative rotation between the slide 14 and the rotating shaft 15.

[0043] The cleaning assembly 16 includes three connecting rods 1601. The first end of the connecting rod 1601 is hinged to the slide 14, the second end of the connecting rod 1601 is hinged to the shovel handle 1602, the first end of the shovel handle 1602 is hinged to the top cap 1603, the top cap 1603 is installed at the bottom end of the rotating shaft 15, and the second end of the shovel handle 1602 is connected to the cleaning shovel 1604. The slide 14 moves up and down, which can drive the cleaning shovel 1604 to retract and unfold.

[0044] The lower end of the feed screw 4 is fixedly connected to the motor support 6 via the bearing housing assembly 5. The rotary servo motor 7 is fixedly mounted on the motor support 6. The rotary servo motor 7 is connected to the rotating shaft 9 via the coupling 8. The lower part of the rotating shaft 9 is fixedly connected to the small motor bracket 10. The small motor bracket 10 is fixedly connected to the rotating shaft 15, thereby driving the cleaning assembly 16 to rotate.

[0045] When the cleaning component 16 enters the chemical container through the inlet, the inlet is relatively small. To facilitate entry, the cleaning component 16 is in a retracted state with a small outer diameter, allowing for smooth insertion. The cleaning component can be inserted into the container through the manhole on the container head. Once inside the chemical container, to contact the inner wall, the small motor 11, via gear set 12, drives three driven gears to rotate. These three driven gears drive three small lead screws 13 downwards, which in turn drive the slide block 14 downwards. 14 drives the connecting rod 1601 to move downwards, which in turn drives the three shovel handles 1602 to unfold outwards. The shovel handles 1602 rotate outwards around the top cap 1603 and unfold downwards to a uniform plane. Then, the three cleaning shovels 1604 press against the inner wall of the chemical container. At this time, the rotary servo motor 7 drives the cleaning assembly 16 to rotate, which in turn drives the cleaning shovels 1604 to rotate, cleaning the inner wall of the chemical container. During the rotation, it continues to rise and fall, which can thoroughly scrape and clean the inner wall of the chemical container, removing any remaining solidified waste. After cleaning, the cleaning shovels 1604 of the cleaning assembly 16 retract and leave upwards from the opening of the chemical container.

[0046] The process involves activating the feed servo motor 2 to adjust the cleaning assembly 6 to a suitable height. Activating the small motor 11 unfolds the cleaning assembly 16. Activating the rotary servo motor 7, via the coupling 8, rotating shaft 9, small motor bracket 10, and rotating shaft 15, rotates the cleaning assembly to clean the back of the container. Activating the feed servo motor 2 controls the up-and-down movement of the cleaning assembly 16 at a suitable speed to clean the entire inner wall of the container. After cleaning, the small motor 11 controls the retraction of the cleaning assembly 16, allowing the bolts on the container sealing cap 1 to be removed and the cleaning assembly 16 to be taken out of the container.

[0047] The cleaning assembly is retractable, allowing access to the container interior through a small manhole flange, thus automating the cleaning of the container's inner walls, improving work efficiency, and reducing manpower requirements. During the cleaning process, operators do not need to approach the cleaning site, reducing the hazard to operators from chemicals inside the container. The container remains closed throughout the cleaning process, preventing dust generated during cleaning from polluting the environment.

[0048] Example 2

[0049] likeFigures 1-10 As shown, based on Embodiment 1, in order to more conveniently remove the cleaned and removed waste, this embodiment also includes an interception component. The interception component includes a push sleeve 17, a push disk 18, a pressure rod 19, a connecting disk 20, and a sector plate 21. The push sleeve 17 is slidably sleeved on the outer surface of the rotating shaft 15. The top end of the push sleeve 17 is connected to a top cap 1603. The push disk 18 is rotatably mounted on the lower end of the push sleeve 17. Multiple pressure rods 19 are provided, and multiple pressure rods 19 are equidistantly mounted on the outer ring surface of the push disk 18. The connecting disk 20 is rotatably mounted on the bottom end of the rotating shaft 15. Multiple sector plates 21 are provided, and the bottom end of each sector plate 21 is hinged to the connecting disk 20. An elastic connecting cloth 22 is connected between two adjacent sector plates 21, and the bottom end of the elastic connecting cloth 22 is connected to the connecting disk 20.

[0050] Furthermore, the top cap 1603 can slide a short distance on the rotating shaft 15. When the shovel handle 1602 unfolds outward, the top cap 1603 moves downward, driving the push sleeve 17, push plate 18, and pressure rod 19 to move downward. Consequently, the pressure rod 19 presses against the sector plate 21, causing the sector plate 21 to rotate downward and unfold. This stretches the elastic connecting cloth 22, forming an unfolded disc shape. Since the push plate 18 is rotatably connected to the push sleeve 17 above, the sector plate 21 will not rotate with the rotation of the cleaning shovel 1604. When the cleaning shovel 1604 rotates to clean the inner wall of the chemical container, the solidified waste that falls off will fall directly onto the disc of the sector plate 21. When the cleaning contact leaves the chemical container, it can retract inward and leave directly from the container opening. This allows the waste that falls off to be taken directly out of the chemical container, achieving automatic waste discharge after automatic cleaning of the inner wall.

[0051] The end of the pressure rod 19 away from the push plate 18 is arc-shaped, and the arc shape is not easily scratched when it contacts the surface of the fan-shaped plate 21 and the elastic connecting cloth 22.

[0052] The above-described embodiments are detailed and specific, illustrating preferred embodiments of the present invention. They are only used to illustrate the technical ideas and features of the present invention, with the aim of enabling those skilled in the art to understand the content of the present invention and implement it accordingly. However, they are not limited to the present invention, and the patent scope of the present invention cannot be limited by this embodiment alone. That is, any equivalent changes or modifications made to the spirit disclosed in the present invention, without departing from the structure of the present invention, such as local improvements within the system and modifications or transformations between subsystems, are still within the patent scope of the present invention.

Claims

1. A chemical container inner wall cleaning device, characterized in that, The device includes a container sealing cap (1) and a feed servo motor (2) fixed on the container sealing cap. A gear set (3) is installed on the sealing cap (1). A feed screw (4) passes through the container sealing cap (1). The feed servo motor (2) controls the feed screw (4) to move up and down through the gear set (3). The lower end of the feed screw (4) is fixedly connected to the motor support (6) through a bearing seat assembly (5). A rotary servo motor (7) is fixedly installed on the motor support (6). The output shaft of the rotary servo motor (7) is connected to the rotating shaft (9) through a coupling (8). The lower part of the rotating shaft (9) is fixedly connected to a small motor bracket (10). The small motor bracket (10) is connected to a rotating shaft (15). A cleaning component (16) is connected to the rotating shaft (15), which drives the cleaning component (16) to rotate.

2. The chemical container inner wall cleaning device according to claim 1, characterized in that, The gear set (3) includes a first gear and a second gear. The first gear is fixed to the output shaft of the feed servo motor (2). The second gear is rotatably mounted on the container sealing cover (1). The second gear meshes with the first gear. The inner ring surface of the second gear has an internal thread. The feed screw (4) passes through the internal thread of the inner ring surface of the second gear. The internal thread of the second gear is threaded to the surface of the feed screw (4).

3. The chemical container inner wall cleaning device according to claim 2, characterized in that, The container sealing cap (1) is equipped with a fixed support plate (101) inside. The fixed support plate (101) has a threaded hole in the middle. The feed screw (4) passes through the threaded hole. The fixed support plate (101) restricts the radial displacement of the feed screw (4) and maintains stability.

4. The chemical container inner wall cleaning device according to claim 3, characterized in that, The small motor bracket (10) is equipped with a small motor (11), and three small lead screws (13) pass through the small motor bracket (10). The small motor (11) drives the three small lead screws (13) to rise and fall through the gear set two (12). The bottom of the three small lead screws (13) is equipped with a slide (14), which moves on the rotating shaft (15). The slide (14) is connected to the cleaning assembly (16).

5. The chemical container inner wall cleaning device according to claim 4, characterized in that, The gear set two (12) includes a driving gear and three driven gears. The driving gear is fixed to the output shaft of the small motor (11). The three driven gears are rotatably mounted on the small motor bracket (10). The inner ring surface of the driven gear has an internal thread. The three small lead screws (13) pass through the inner rings of the three driven gears respectively. The three small lead screws (13) are threadedly connected to the three driven gears respectively, controlling the three small lead screws (13) to move up and down.

6. The chemical container inner wall cleaning device according to claim 5, characterized in that, The slide (14) has a convex strip inside, and the rotating shaft (15) has a concave groove. The convex strip and the concave groove cooperate to prevent relative rotation between the slide (14) and the rotating shaft (15).

7. The chemical container inner wall cleaning device according to claim 6, characterized in that, The cleaning assembly (16) includes three connecting rods (1601). The first end of the connecting rod (1601) is hinged to the slide (14), the second end of the connecting rod (1601) is hinged to the shovel handle (1602), the first end of the shovel handle (1602) is hinged to the top cap (1603), the top cap (1603) is installed at the bottom end of the rotating shaft (15), and the second end of the shovel handle (1602) is connected to a cleaning shovel (1604). The slide (14) moves up and down, which can drive the cleaning shovel (1604) to retract and unfold.

8. The chemical container inner wall cleaning device according to claim 1, characterized in that, The lower end of the container sealing cap (1) is a flange that matches the container manhole, which can fix the container sealing cap on the manhole flange to provide overall support.

9. A chemical container inner wall cleaning device according to claim 7, characterized in that, It also includes an interception assembly, which includes a propulsion sleeve (17), a propulsion disc (18), a pressure rod (19), a connecting disc (20), and a sector plate (21). The propulsion sleeve (17) is slidably sleeved on the outer surface of the rotating shaft (15). The top end of the propulsion sleeve (17) is connected to the top cap (1603). The propulsion disc (18) is rotatably mounted on the lower end of the propulsion sleeve (17). Multiple pressure rods (19) are provided, and multiple pressure rods (19) are equidistantly mounted on the outer ring surface of the propulsion disc (18). The connecting disc (20) is rotatably mounted on the bottom end of the rotating shaft (15). Multiple sector plates (21) are provided, and the bottom end of each sector plate (21) is hinged to the connecting disc (20). An elastic connecting cloth (22) is connected between two adjacent sector plates (21), and the bottom end of the elastic connecting cloth (22) is connected to the connecting disc (20).

10. A chemical container inner wall cleaning device according to claim 9, characterized in that, The end of the pressure rod (19) away from the propulsion disk (18) is arc-shaped.

Citation Information

Patent Citations

  • Cleaning device for inner wall of reaction kettle

    CN214439004U