Water conservancy construction pipeline outer wall rust removal equipment

By designing an external wall rust removal equipment for water conservancy construction pipelines with automatic clamping and grinding components, the problems of low rust removal efficiency and poor applicability of existing equipment are solved, and rapid automatic rust removal of pipes of different diameters is achieved, and the removal speed is improved. Effect.

CN222244161UActive Publication Date: 2024-12-27JIAXING KUNYANG ENTERPRISE MANAGEMENT CO LTD
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Patent Information

Application Number
CN202420545274.8
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-03-20
Publication Date
2024-12-27
Estimated Expiration
2034-03-20

AI Technical Summary

Technical Problem

The rust removal equipment of existing water conservancy construction pipelines has low rust removal efficiency, cannot be automated, and is inconvenient to remove rust for pipes of different diameters, and the equipment is poor in practicality.

Method used

A water conservancy construction pipeline outer wall rust removal equipment including clamping components and grinding components is designed. The clamping components automatically clamp and fix pipes of different diameters by rotating hollow discs and sliding hollow discs. The grinding components are sliding and The rotating grinding roller realizes automatic grinding, and combined with motor drive, it realizes automatic rust removal.

Benefits of technology

It realizes rapid automatic rust removal of the outer wall of the pipeline, fast rust removal speed, good effect, and can be suitable for pipes of different diameters, improving the practicality of the equipment and rust removal efficiency.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses water conservancy construction pipeline outer wall rust removal equipment, and relates to the technical field of pipeline rust removal equipment, the water conservancy construction pipeline outer wall rust removal equipment comprises a workbench, the top of the workbench is provided with two oppositely-arranged clamping assemblies, the top of the workbench is further provided with a polishing assembly, the polishing assembly is located between the two clamping assemblies, and the clamping assemblies can rapidly clamp pipelines with different diameters; the clamping assembly and the polishing assembly are matched to automatically and rapidly remove rust on pipelines with different diameters; the clamping assembly comprises a rotating hollow disc which is vertically arranged, three moving plates are evenly distributed at the end of the rotating hollow disc in the circumferential direction of the rotating hollow disc, the three moving plates are synchronously arranged in a sliding mode in the radial direction of the rotating hollow disc, and one end of each moving plate extends to the hollow position of the rotating hollow disc. The problem that the position of existing water conservancy pipeline outer wall rust removal equipment needs to be manually adjusted in the pipeline polishing process, and consequently the pipeline rust removal efficiency is low is solved. And only a pipeline with a certain diameter can be derusted, so that the practicability of the equipment is poor.
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Description

Technical Field

[0001] The utility model relates to the technical field of pipeline rust removal equipment, in particular to a water conservancy construction pipeline outer wall rust removal equipment. Background Art

[0002] Water conservancy projects are projects built to control and allocate natural surface water and groundwater to achieve the purpose of eliminating harm and promoting benefits. Therefore, in the construction process of water conservancy projects, a large number of water pipes will be used to transport water. Most of these pipes are made of steel materials. They will rust if immersed in water or humid environments for a long time, thereby shortening the life of the pipes. Therefore, it is necessary to regularly remove rust from the outer wall of the pipe.

[0003] A patent with publication number CN114083414B is disclosed in the prior art. The solution includes two symmetrically arranged hoop-shaped mounting frames, which are fixed by connecting bolts. Support mechanisms are arranged on both sides of the hoop-shaped mounting frames, and a grinding mechanism is arranged on the inner side of the hoop-shaped mounting frames. The method includes the following steps: the user places the two hoop-shaped mounting frames on the outside of the pipeline and connects and fixes them by connecting bolts.

[0004] The existing technologies including the above patents have gradually exposed their shortcomings during use:

[0005] First, the grinding mechanism in the equipment can only remove rust from a certain part of the pipeline. Therefore, the position of the grinding mechanism needs to be manually adjusted multiple times to completely remove rust from the pipeline, so that the area polished by the grinding mechanism can completely cover the outer wall of the pipeline. The adjustment process of the grinding mechanism is cumbersome, resulting in low efficiency of the equipment in removing rust from the pipeline. In addition, the degree of contact between the grinding mechanism and the outer wall of the pipeline is affected by the adjustment of the workers, which can easily lead to inconsistent rust removal effects in different areas of the outer wall of the pipeline, affecting the rust removal effect on the pipeline.

[0006] Second, the existing equipment can only remove rust from pipes of a certain diameter. When removing rust from pipes of different diameters, the corresponding equipment needs to be replaced, resulting in poor practicality of the equipment.

[0007] In summary, the existing technology obviously has inconveniences and defects in practical use, so it is necessary to improve it. Utility Model Content

[0008] In view of the defects in the prior art, the technical problem to be solved by the utility model is to provide a rust removal device for the outer wall of a water conservancy construction pipeline, which can automatically remove rust from the outer wall of the pipeline, and has a fast rust removal speed and a good rust removal effect;

[0009] The equipment can also remove rust from pipes of different diameters and has a wide range of applications.

[0010] In order to solve the above problems, the utility model provides the following technical solutions:

[0011] A rust removal device for the outer wall of a water conservancy construction pipeline comprises a workbench, wherein the top of the workbench is provided with two clamping assemblies arranged opposite to each other, and the top of the workbench is also provided with a grinding assembly, wherein the grinding assembly is located between the two clamping assemblies.

[0012] The clamping assembly can quickly clamp pipes of different diameters; the clamping assembly cooperates with the grinding assembly to automatically and quickly remove rust from pipes of different diameters;

[0013] The clamping assembly comprises a rotating hollow disc arranged vertically, and three movable plates are evenly distributed along the circumference of the end of the rotating hollow disc, and the three movable plates are synchronously slidably arranged along the radial direction of the rotating hollow disc, and one end of the movable plate extends to the hollow part of the rotating hollow disc and is fixedly connected with a rubber pad;

[0014] When the moving plates on the two rotating hollow discs slide until all the rubber pads abut against the outer wall of the pipeline, the two ends of the pipeline are fixed, and the pipeline is coaxial with the rotating hollow disc.

[0015] As an optimized solution, the grinding assembly includes a sliding hollow disc coaxially arranged with the rotating hollow disc, and the end of the sliding hollow disc is evenly distributed with four sliding plates along its circumference, and the four sliding plates are synchronously slidably arranged along the radial direction of the sliding hollow disc, one end of the sliding plate extends to the hollow part of the sliding hollow disc and is fixedly connected with a U-shaped plate, and a grinding roller rotating along a horizontal line is provided on the inner wall of the U-shaped plate.

[0016] The rotating hollow disc is also arranged to reciprocate along its axis, and the sliding hollow disc is also arranged to slide horizontally. The four sliding plates slide synchronously until all the grinding rollers are against the outer wall of the pipe, and when the rotating hollow disc and the sliding hollow disc respectively reciprocate and slide horizontally, the rotating grinding rollers automatically grind the pipe.

[0017] As an optimized solution, the top of the workbench is fixedly connected to two vertically arranged support plates, and the opposite ends of the two rotating hollow discs are coaxially fixed with rotating tubes. The opposite ports of the two rotating tubes pass through the two support plates accordingly and are rotatably connected to the two support plates respectively.

[0018] As an optimized solution, the ends of the movable plates are fixedly connected with driven racks, and the ends of the rotating hollow disk are evenly distributed with three synchronously rotating driven gears along its circumference, and the three driven gears are correspondingly meshed with three driven racks.

[0019] As an optimized solution, the ends of the driven gears are fixedly connected to a transmission shaft, one end of the transmission shaft passes through a rotating hollow disk and is fixedly connected to a transition gear, the transmission shaft is rotatably connected to the rotating hollow disk, an internal gear ring coaxially arranged therewith is rotatably provided on the inner wall of the rotating tube, and the transition gear is meshed with the internal gear ring.

[0020] As an optimized solution, a control hollow disc coaxially arranged therewith is rotatably provided on one side of the sliding hollow disc, and four guide grooves are evenly distributed along the circumference of the end of the control hollow disc, and the two ends of the guide grooves are respectively close to the outer wall and the inner wall of the control hollow disc, and the ends of the four sliding plates are fixedly connected with guide columns, and the ends of the four guide columns extend into the four guide grooves respectively.

[0021] As an optimized solution, the end of the sliding hollow disc is symmetrically provided with four fixed shafts along its axial section, each of which is provided with a rotatable rotating wheel, and the four rotating wheels are in frictional contact with the outer wall of the control hollow disc.

[0022] As an optimized solution, a limit plate is fixedly provided at one end of the fixed shaft, and the opposite end surface of the control hollow disc is in frictional contact with the limit plate and the sliding plate.

[0023] As an optimized solution, a semi-toothed ring is fixedly connected to the outer wall of the control hollow disc, and a control gear meshing with the semi-toothed ring is rotatably provided at the end of the sliding hollow disc.

[0024] As an optimized solution, a sliding block is provided on the top of the workbench for horizontal sliding, and the sliding hollow disc is fixedly connected to the sliding block via a connecting plate.

[0025] Compared with the prior art, the beneficial effects of the utility model are:

[0026] 1. The two clamping components cooperate with the grinding components to automatically remove rust from the outer wall of the pipeline, and the rust removal speed is fast and the rust removal effect is good;

[0027] 2. Through the cooperation of two clamping components and grinding components, rust removal can be performed on pipes of different diameters, thus improving the practicability of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] In order to more clearly illustrate the specific implementation of the utility model or the technical solution in the prior art, the following is a brief introduction to the drawings required for the specific implementation or the prior art description. In all the drawings, similar elements or parts are generally identified by similar reference numerals. In the drawings, each element or part is not necessarily drawn according to the actual scale.

[0029] Figure 1It is a schematic diagram of the structure of the utility model;

[0030] Figure 2 It is a structural schematic diagram of the clamping assembly of the utility model;

[0031] Figure 3 It is a structural schematic diagram of the grinding assembly of the utility model;

[0032] Figure 4 It is a structural schematic diagram of the outer gear ring of the utility model;

[0033] Figure 5 It is a structural schematic diagram of the transmission shaft of the utility model.

[0034] In the figure: 1- workbench; 2- clamping assembly; 3- pipe; 4- grinding assembly; 5- transmission belt; 6- fourth drive motor; 7- driving wheel; 8- driven wheel; 9- single threaded screw; 10- sliding block; 11- connecting plate; 12- control hollow disc; 13- control motor; 14- U-shaped plate; 15- sliding hollow disc; 16- sliding plate; 17- control gear; 18- half gear ring; 19- third drive motor; 20- guide column; 21- guide groove; 22- Grinding roller; 23-limiting plate; 24-rotating wheel; 25-fixed shaft; 26-motor forward and reverse delay controller; 27-rotating hollow disc; 28-support plate; 29-rotating tube; 30-rubber pad; 31-driven gear; 32-moving plate; 33-driven rack; 34-first drive motor; 35-transition gear; 36-inner gear ring; 37-outer gear ring; 38-second drive motor; 39-second drive gear; 40-first drive gear; 41-transmission shaft. DETAILED DESCRIPTION

[0035] The following embodiments of the technical solution of the utility model are described in detail in conjunction with the accompanying drawings. The following embodiments are only used to more clearly illustrate the technical solution of the utility model, and are therefore only used as examples, and cannot be used to limit the protection scope of the utility model.

[0036] like Figures 1 to 5 As shown, a rust removal device for the outer wall of a water conservancy construction pipeline comprises a workbench 1, the top of the workbench 1 is provided with two clamping assemblies 2 arranged opposite to each other, the top of the workbench 1 is also provided with a grinding assembly 4, and the grinding assembly 4 is located between the two clamping assemblies 2.

[0037] The clamping assembly 2 can quickly clamp pipes 3 of different diameters; the clamping assembly 2 cooperates with the grinding assembly 4 to automatically and quickly remove rust from pipes 3 of different diameters;

[0038] The clamping assembly 2 includes a rotating hollow disc 27 arranged vertically, and three movable plates 32 are evenly distributed along the circumference of the end of the rotating hollow disc 27. The three movable plates 32 are synchronously slidably arranged along the radial direction of the rotating hollow disc 27. One end of the movable plate 32 extends to the hollow part of the rotating hollow disc 27 and is fixedly connected to a rubber pad 30.

[0039] When the moving plates 32 on the two rotating hollow disks 27 slide until all the rubber pads 30 abut against the outer wall of the pipe 3 , both ends of the pipe 3 are fixed, and the pipe 3 is coaxial with the rotating hollow disks 27 .

[0040] The grinding assembly 4 includes a sliding hollow disc 15 coaxially arranged with the rotating hollow disc 27, and four sliding plates 16 are evenly distributed along the circumference of the end of the sliding hollow disc 15. The four sliding plates 16 are synchronously slidably arranged along the radial direction of the sliding hollow disc 15. One end of the sliding plate 16 extends to the hollow part of the sliding hollow disc 15 and is fixedly connected with a U-shaped plate 14. The inner wall of the U-shaped plate 14 is provided with a grinding roller 22 that is arranged to rotate along a horizontal line.

[0041] The rotating hollow disc 27 is also arranged to reciprocate along its axis, and the sliding hollow disc 15 is also arranged to slide horizontally. The four sliding plates 16 slide synchronously until all the grinding rollers 22 are against the outer wall of the pipe 3, and when the rotating hollow disc 27 and the sliding hollow disc 15 reciprocate and slide horizontally respectively, the rotating grinding rollers 22 automatically grind the pipe 3.

[0042] Two vertically arranged support plates 28 are fixedly connected to the top of the workbench 1. The opposite ends of the two rotating hollow disks 27 are coaxially fixed with rotating tubes 29. The opposite ends of the two rotating tubes 29 pass through the two support plates 28 and are rotatably connected to the two support plates 28 respectively.

[0043] An outer gear ring 37 is fixedly mounted on the outer wall of one of the rotating tubes 29 , and a first driving gear 40 meshing with the outer gear ring 37 is rotatably mounted on the end of one of the supporting plates 28 .

[0044] A first drive motor 34 and a motor forward and reverse delay controller 26 are fixedly provided at the end of one of the support plates 28. The output end of the first drive motor 34 passes through the support plate 28 and is fixedly connected to the first drive gear 40. The motor forward and reverse delay controller 26 can control the first drive motor 34 to periodically rotate forward and reverse.

[0045] The ends of the moving plates 32 are fixedly connected with driven racks 33 , and the ends of the rotating hollow disc 27 are evenly distributed with three synchronously rotating driven gears 31 along its circumference, and the three driven gears 31 are meshed with the three driven racks 33 correspondingly.

[0046] The ends of the driven gears 31 are fixedly connected to the transmission shaft 41. One end of the transmission shaft 41 passes through the rotating hollow disk 27 and is fixedly connected to the transition gear 35. The transmission shaft 41 is rotatably connected to the rotating hollow disk 27. An internal gear ring 36 coaxially arranged therewith is rotatably provided on the inner wall of the rotating tube 29, and the transition gear 35 is meshed with the internal gear ring 36.

[0047] A second driving gear 39 meshing with the inner gear ring 36 is rotatably provided at the end of the rotating hollow disk 27 . A second driving motor 38 is fixedly provided on the inner wall of the rotating tube 29 . The output end of the second driving motor 38 is fixedly connected to the second driving gear 39 .

[0048] A control hollow disc 12 coaxially arranged therewith is rotatably provided on one side of the sliding hollow disc 15, and four penetrating guide grooves 21 are evenly distributed along the circumference of the end of the control hollow disc 12, and the two ends of the guide groove 21 are respectively close to the outer wall and the inner wall of the control hollow disc 12, and the ends of the four sliding plates 16 are fixedly connected with guide columns 20, and the ends of the four guide columns 20 extend into the four guide grooves 21 respectively.

[0049] Four fixed shafts 25 are symmetrically arranged at the end of the sliding hollow disc 15 along its axial section. The fixed shafts 25 are each provided with a rotatable rotating wheel 24 . The four rotating wheels 24 are in frictional contact with the outer wall of the control hollow disc 12 .

[0050] A limiting plate 23 is fixedly disposed at one end of the fixed shaft 25 , and the opposite end surface of the control hollow disk 12 is in frictional contact with the limiting plate 23 and the sliding plate 16 .

[0051] A half gear ring 18 is fixedly connected to the outer wall of the control hollow disc 12 , and a control gear 17 meshing with the half gear ring 18 is rotatably provided at the end of the sliding hollow disc 15 .

[0052] A third driving motor 19 is fixedly provided at the other end of the sliding hollow disc 15 . An output end of the third driving motor 19 passes through the sliding hollow disc 15 and is fixedly connected to the control gear 17 .

[0053] The two ends of the grinding roller 22 are rotatably connected to the inner walls of the U-shaped plate 14 . The control motor 13 is fixedly provided on the outer wall of the U-shaped plate 14 . The output end of the control motor 13 passes through the U-shaped plate 14 and is fixedly connected to the grinding roller 22 .

[0054] A sliding block 10 is provided on the top of the workbench 1 for horizontal sliding movement, and a sliding hollow disc 15 is fixedly connected to the sliding block 10 via a connecting plate 11 .

[0055] Two single-thread screws 9 are arranged above the workbench 1 and are rotatably arranged along a horizontal line. One end of the two single-thread screws 9 passes through a sliding block 10 respectively and are both threadedly connected to the sliding block 10 .

[0056] The two ends of the two single-thread screws 9 are rotatably connected to the two support plates 28 , and one end of the two single-thread screws 9 passes through one of the support plates 28 and is fixedly connected to a driving wheel 7 and a driven wheel 8 , respectively. The driving wheel 7 is connected to the driven wheel 8 through a transmission belt 5 .

[0057] A fourth drive motor 6 is fixedly mounted on the end of one of the support plates 28 , and an output end of the fourth drive motor 6 is fixedly connected to the drive wheel 7 .

[0058] The working principle of this device is:

[0059] When fixing the pipe 3, the pipe 3 is inserted into one of the rotating hollow discs 27, and the two second drive motors 38 are started. The second drive motors 38 drive the second drive gear 39 and the inner gear ring 36 to rotate, thereby driving the transition gears 35 on the two rotating hollow discs 27 to rotate. Under the drive of the transmission shaft 41, the three driven gears 31 on each rotating hollow disc 27 rotate synchronously, thereby driving the three moving plates 32 and the rubber pads 30 to slide synchronously, until all the rubber pads 30 abut against the outer wall of the pipe 3, and the two ends of the pipe 3 are clamped. At this time, the pipe 3 is coaxial with the rotating hollow disc 27;

[0060] When the pipe 3 is polished, the third drive motor 19 drives the control gear 17, the half gear ring 18 and the control hollow disc 12 to rotate. Under the guidance of the guide groove 21, the four guide columns 20 synchronously drive the four sliding plates 16 to slide close to the center of the control hollow disc 12, thereby driving the four polishing rollers 22 to move closer together until the four polishing rollers 22 are against the outer wall of the pipe 3. The control motor 13 drives the polishing rollers 22 to rotate. At the same time, the first drive motor 34 performs periodic forward and reverse rotation under the control of the motor forward and reverse delay controller 26, thereby driving the first drive gear 40, the outer gear ring 37, the rotating tube 29 and the rotating hollow disc 27 to rotate periodically back and forth, thereby driving the pipe 3 to rotate periodically back and forth. After the pipe 3 rotates for one cycle, the fourth drive motor 6 is started, and the fourth drive motor 6 drives the drive wheel 7. The transmission belt 5, the driven wheel 8 and the two single-thread screws 9 rotate, thereby controlling the sliding block 10, the connecting plate 11 and the sliding hollow disc 15 to slide horizontally, thereby driving the grinding roller 22 to slide horizontally, and grinding the outer wall of the pipe 3 until the sliding block 10 slides horizontally to the limit position, and the fourth drive motor 6 is turned off. After the pipe 3 rotates for a cycle, the control motor 13 and the first drive motor 34 are turned off. At the same time, the second drive motor 38 and the third drive motor 19 are started to rotate in the opposite direction, the pipe 3 is released, and the pipe 3 is moved. The above operation is repeated to continue to complete the rust removal work on the pipe 3, and the function of automatically removing rust from the outer wall of the pipe 3 is realized, and the rust removal speed is fast and the rust removal effect is uniform. At the same time, the function of removing rust from pipes 3 of different diameters is also realized, thereby improving the practicality of the device.

[0061] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the utility model, rather than to limit it. Although the utility model has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or replace some or all of the technical features therein by equivalents. These modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the utility model, and they should all be included in the scope of the claims and specification of the utility model.

Claims

1. A rust removal device for the outer wall of a water conservancy construction pipeline, characterized in that: The workbench (1) comprises a workbench (1), wherein the top of the workbench (1) is provided with two clamping assemblies (2) arranged opposite to each other, and the top of the workbench (1) is also provided with a grinding assembly (4), wherein the grinding assembly (4) is located between the two clamping assemblies (2). The clamping assembly (2) can quickly clamp pipes (3) of different diameters; the clamping assembly (2) cooperates with the grinding assembly (4) to automatically and quickly remove rust from pipes (3) of different diameters; The clamping assembly (2) comprises a vertically arranged rotating hollow disc (27), three movable plates (32) are evenly distributed along the circumference of the end of the rotating hollow disc (27), the three movable plates (32) are synchronously slidably arranged along the radial direction of the rotating hollow disc (27), one end of the movable plate (32) extends to the hollow part of the rotating hollow disc (27) and is fixedly connected to a rubber pad (30); When the moving plates (32) on the two rotating hollow disks (27) slide until all the rubber pads (30) abut against the outer wall of the pipe (3), the two ends of the pipe (3) are fixed, and the pipe (3) is coaxial with the rotating hollow disk (27).

2. The rust removal equipment for the outer wall of a water conservancy construction pipeline according to claim 1 is characterized in that: The grinding assembly (4) comprises a sliding hollow disc (15) coaxially arranged with the rotating hollow disc (27), and four sliding plates (16) are evenly distributed along the circumference of the end of the sliding hollow disc (15), and the four sliding plates (16) are synchronously slidably arranged along the radial direction of the sliding hollow disc (15), one end of the sliding plate (16) extends to the hollow part of the sliding hollow disc (15) and is fixedly connected with a U-shaped plate (14), and a grinding roller (22) is provided on the inner wall of the U-shaped plate (14) and is rotatably arranged along a horizontal line. The rotating hollow disc (27) is also arranged to reciprocate along its axis, and the sliding hollow disc (15) is also arranged to slide horizontally. The four sliding plates (16) slide synchronously until all the grinding rollers (22) are in contact with the outer wall of the pipe (3). When the rotating hollow disc (27) and the sliding hollow disc (15) respectively reciprocate and slide horizontally, the rotating grinding rollers (22) automatically grind the pipe (3).

3. The rust removal equipment for the outer wall of a water conservancy construction pipeline according to claim 2 is characterized in that: The top of the workbench (1) is fixedly connected to two vertically arranged support plates (28); the opposite ends of the two rotating hollow discs (27) are coaxially fixedly connected to rotating tubes (29); the opposite ends of the two rotating tubes (29) pass through the two support plates (28) respectively and are rotatably connected to the two support plates (28) respectively.

4. The rust removal equipment for the outer wall of a water conservancy construction pipeline according to claim 3 is characterized by: The ends of the movable plate (32) are fixedly connected with driven racks (33), and the ends of the rotating hollow disc (27) are evenly distributed with three synchronously rotating driven gears (31) along its circumference, and the three driven gears (31) are correspondingly meshed with the three driven racks (33).

5. The rust removal equipment for the outer wall of a water conservancy construction pipeline according to claim 4, characterized in that: The ends of the driven gears (31) are fixedly connected to a transmission shaft (41), one end of the transmission shaft (41) passes through the rotating hollow disc (27) and is fixedly connected to a transition gear (35), the transmission shaft (41) is rotatably connected to the rotating hollow disc (27), an inner toothed ring (36) coaxially arranged therewith is rotatably provided on the inner wall of the rotating tube (29), and the transition gear (35) is meshed with the inner toothed ring (36).

6. The rust removal equipment for the outer wall of a water conservancy construction pipeline according to claim 5, characterized in that: A control hollow disc (12) coaxially arranged therewith is rotatably provided on one side of the sliding hollow disc (15); four guide grooves (21) are evenly distributed along the circumference of the end of the control hollow disc (12); the two ends of the guide groove (21) are respectively close to the outer wall and the inner wall of the control hollow disc (12); the ends of the four sliding plates (16) are fixedly connected with guide columns (20); the ends of the four guide columns (20) respectively extend into the four guide grooves (21).

7. The rust removal equipment for the outer wall of a water conservancy construction pipeline according to claim 6, characterized in that: The end of the sliding hollow disc (15) is symmetrically provided with four fixed shafts (25) along its axial section, and each of the fixed shafts (25) is provided with a rotatable rotating wheel (24), and each of the four rotating wheels (24) is in frictional contact with the outer wall of the control hollow disc (12).

8. The rust removal equipment for the outer wall of a water conservancy construction pipeline according to claim 7, characterized in that: A limiting plate (23) is fixedly provided at one end of the fixed shaft (25), and the opposite end surface of the control hollow disc (12) is in frictional contact with the limiting plate (23) and the sliding plate (16).

9. The rust removal equipment for the outer wall of a water conservancy construction pipeline according to claim 8, characterized in that: A semi-toothed ring (18) is fixedly connected to the outer wall of the control hollow disc (12), and a control gear (17) meshing with the semi-toothed ring (18) is rotatably provided at the end of the sliding hollow disc (15).

10. The rust removal equipment for the outer wall of a water conservancy construction pipeline according to claim 9, characterized in that: A sliding block (10) is provided on the top of the workbench (1) for horizontal sliding, and the sliding hollow disc (15) is fixedly connected to the sliding block (10) via a connecting plate (11).