Rust removal device for constructional engineering

By designing a transmission box, motor, and connecting plate to synchronously drive the inner and outer rust-removing sleeves to rotate, and combining embedded ball bearings and support seats to improve rotational flexibility, the problem of existing devices being unable to simultaneously remove rust from the inner and outer walls of steel pipes has been solved, achieving efficient and comprehensive rust removal and easy rust removal.

CN223971461UActive Publication Date: 2026-03-06ZHEJIANG QIANDING ECOLOGICAL CONSTR CO LTD
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Patent Information

Application Number
CN202520683432.0
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-04-11
Publication Date
2026-03-06
Estimated Expiration
2035-04-11

AI Technical Summary

Technical Problem

Existing rust removal equipment used in construction projects cannot effectively remove rust from the inner and outer walls of steel pipes simultaneously, nor can it perform rust removal operations on multiple sets of steel pipes at the same time, resulting in low operating efficiency and failing to meet construction requirements.

Method used

A rust removal device for construction engineering was designed. It uses a transmission box, motor and connecting plate to drive multiple connecting plates and fixed plates to rotate synchronously. Combined with an outer rust removal sleeve and an inner rust removal sleeve, it uses a rust removal wire brush to remove rust from the inner and outer walls of the steel pipe simultaneously. The rotation flexibility is improved by embedding ball bearings, support seats and rolling wheels. Combined with a gantry frame and adjustment frame, it ensures the stability of the steel pipe position. The rust residue is collected by a hopper and a collection box.

Benefits of technology

It achieves comprehensive and simultaneous rust removal on both the inner and outer walls of steel pipes, improving rust removal efficiency and comprehensiveness, ensuring the effectiveness of steel pipe use, and simplifying the rust removal process.

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Abstract

The utility model relates to the technical field of constructional engineering, and discloses a derusting device for constructional engineering, one side of a connecting disc is detachably connected with an outer derusting sleeve, the inner side of the outer derusting sleeve is provided with an inner derusting sleeve, and the end part of the outer derusting sleeve and the end part of the inner derusting sleeve are both connected to the end part of a fixed disc; and embedded balls are embedded in the inner side of the edge of the fixing disc, the fixing disc is detachably connected with the connecting disc, the outer rust removal sleeve can conduct rust removal treatment on the outer side wall of the steel pipe through a rust removal steel wire brush on the inner side wall of the outer rust removal sleeve, and the inner rust removal sleeve can conduct rust removal treatment on the inner side wall of the steel pipe through a rust removal steel wire brush on the outer side wall of the inner rust removal sleeve. The inner wall and the outer wall of the steel pipe can be in tight contact with the derusting steel wire brush through the deformable characteristic of the derusting steel wire brush, so that the inner wall and the outer wall of the steel pipe are derusted synchronously, the comprehensiveness of derusting operation of the steel pipe is guaranteed, and the subsequent application effect of the steel pipe is improved.
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Description

Technical Field

[0001] This utility model relates to the field of building engineering technology, specifically a rust removal device for building engineering. Background Technology

[0002] Construction engineering refers to the engineering entity formed by the construction of various types of buildings and their ancillary facilities, as well as the installation of supporting lines, pipelines, and equipment. Among them, "buildings" refer to projects with roofs, beams, columns, walls, foundations, and internal spaces that can meet people's needs for production, living, learning, and public activities. Steel pipes are often used in the construction process, and after a period of time, steel pipes will rust. Rust will reduce the strength, toughness, plasticity, and other mechanical properties of steel pipes, greatly reducing their service life. Therefore, in construction engineering, when rust appears on the surface of building steel pipes, rust removal equipment is needed to remove the rust.

[0003] However, current rust removal equipment for steel pipes cannot effectively remove rust from the inner wall of the pipe because both the outer and inner walls of the pipe are corroded. This results in incomplete rust removal. Furthermore, current rust removal equipment cannot perform rust removal on multiple sets of steel pipes simultaneously, leading to low operating efficiency and failing to meet the construction needs of current building projects. Summary of the Invention

[0004] (a) Technical problems to be solved

[0005] To address the shortcomings of existing technologies, this utility model provides a rust removal device for construction engineering. It solves the problem that current rust removal devices for steel pipes often fail to effectively remove rust from the inner wall due to corrosion on both the outer and inner walls, resulting in incomplete rust removal. Furthermore, current rust removal devices cannot simultaneously remove rust from multiple sets of steel pipes, leading to low operating efficiency and failing to meet the construction needs of current building projects.

[0006] (II) Technical Solution

[0007] To achieve the above objectives, the present invention provides the following technical solution: a rust removal device for construction engineering, comprising a rust removal workbench, wherein three sets of fixed supports with equal spacing are installed on one side of the top of the rust removal workbench, a transmission box is installed on one side of each of the three sets of fixed supports, and a motor is installed on one side of the transmission box, the motor being limited and installed on the top of the rust removal workbench by a fixing plate.

[0008] The other side of the three sets of fixed supports is rotatably connected to a connecting plate. An outer rust removal sleeve is detachably connected to one side of the connecting plate. An inner rust removal sleeve is provided on the inner side of the outer rust removal sleeve. The ends of the outer rust removal sleeve and the inner rust removal sleeve are both connected to the end of the fixed plate. Embedded ball bearings are embedded in the inner side of the fixed plate. The fixed plate and the connecting plate are detachably connected. Bottom material discharge grooves are opened at the bottom of both the outer rust removal sleeve and the inner rust removal sleeve.

[0009] On the other side of the top of the rust removal workbench, support seats are installed at three sets of fixed supports. The top of the support seat is provided with a support arc groove, and several sets of rolling wheels are rotatably connected at equal angles on the inner arc surface of the support arc groove.

[0010] As a preferred technical solution of the rust removal device for building engineering of this utility model, the transmission box is provided with a toothed chain transmission structure. The motor is connected to the power input end of the toothed chain transmission structure through the drive shaft. The toothed chain transmission structure drives three sets of connecting discs to rotate synchronously through the drive shaft. The drive shaft is respectively connected to the interior of three sets of fixed supports.

[0011] As a preferred technical solution of the rust removal device for construction engineering of this utility model, the inner side of the outer rust removal sleeve and the outer side of the inner rust removal sleeve are both provided with rust removal wire brushes. The rust removal steel pipe is placed inside the outer and inner rust removal sleeves and is in close contact with the rust removal wire brushes. The end of the steel pipe is in contact with the surface of the embedded ball bearings.

[0012] As a preferred technical solution of the rust removal device for building engineering of this utility model, a rolling groove is provided on the inner wall of the inner arc surface of the supporting arc groove, and the rolling wheel is rotatably connected in the rolling groove through the rolling shaft, and the outer rust removal sleeve is in contact with the rolling wheel.

[0013] As a preferred technical solution of the rust removal device for construction engineering of this utility model, a gantry frame is installed on the bottom of the rust removal workbench on the same side as the support seat. A square sleeve is installed on the bottom of the gantry frame corresponding to the support seat. An adjustment frame is telescopically and slidably connected to the bottom inner side of the square sleeve. The edge of the square sleeve is limited by a limiting bolt to limit the adjustment frame.

[0014] The end of the adjusting frame is connected to a support cylinder corresponding to the outer rust removal sleeve and the inner rust removal sleeve. A support spring is installed on the inner side of the support cylinder. A tapered support head is connected to the end of the support spring. Anti-slip grooves are evenly opened on the edge of the tapered support head.

[0015] As a preferred technical solution of the rust removal device for building engineering of this utility model, the inside of the square sleeve is provided with a contraction chamber for the adjustment frame to slide and extend, and the end of the limiting bolt is in close contact with the side end of the adjustment frame.

[0016] The conical support head slides along the inner wall of the support cylinder.

[0017] As a preferred technical solution of the rust removal device for construction engineering according to this utility model, the bottom end of the rust removal workbench is connected to a material drop hopper, the bottom of the material drop hopper is equipped with a bottom sleeve, and a collection box is slidably connected to the inner side of the bottom sleeve.

[0018] As a preferred technical solution of the rust removal device for construction engineering of this utility model, the inner wall of the hopper is set as a smooth inclined surface, the side of the bottom sleeve is provided with a sliding groove, the collection box is slidably connected in the sliding groove, and the inside of the collection box is provided with a collection chamber.

[0019] (III) Beneficial Effects

[0020] Compared with the prior art, this utility model provides a rust removal device for construction engineering, which has the following beneficial effects:

[0021] 1. Through the transmission box, motor, and connecting plate, a single motor can synchronously drive multiple connecting and fixed plates to rotate, thereby synchronously driving multiple sets of external and internal rust-removing sleeves. This facilitates simultaneous rust removal of multiple sets of steel pipes placed inside the external and internal rust-removing sleeves, ensuring the efficiency of the device. The external rust-removing sleeve uses its inner wall rust-removing wire brush to remove rust from the outer wall of the steel pipe, while the internal rust-removing sleeve uses its outer wall rust-removing wire brush to remove rust from the inner wall of the steel pipe. The deformable nature of the rust-removing wire brush ensures close contact between the inner and outer walls of the steel pipe, achieving simultaneous rust removal of both the inner and outer walls. This ensures comprehensive rust removal and improves the subsequent application effect of the steel pipe.

[0022] 2. By embedding and installing ball bearings on the edge of the fixed plate, the end of the steel pipe contacts the ball bearings after being inserted between the outer and inner rust-removing sleeves. This allows the fixed plate to more flexibly drive the outer and inner rust-removing sleeves to rotate. Simultaneously, the support base, support groove, and rolling wheel facilitate rolling support for the outer rust-removing sleeve, making its rotation more flexible. This ensures the flexibility of both the outer and inner rust-removing sleeves as they rotate along the steel pipe, further guaranteeing smooth rust removal operations and ensuring comprehensive and uniform rust removal.

[0023] 3. The position of the support cylinder can be easily adjusted and limited by the gantry frame, square sleeve, adjusting frame, and limit bolt, so that the position of the support cylinder can more accurately correspond to the position of the steel pipe. Combined with the support spring inside the support cylinder, the conical support head can be easily supported, so that the conical support head can tightly abut against the end of the steel pipe. The anti-slip groove on the edge of the conical support head ensures tight contact between the conical support head and the steel pipe, so that the steel pipe can maintain a stable position during rust removal, preventing the steel pipe from rotating with the outer and inner rust removal sleeves and causing incomplete rust removal, thus further ensuring the rust removal effect of the steel pipe.

[0024] 4. By using the hopper, bottom sleeve, and collection box at the bottom of the rust removal workbench, combined with the bottom troughs at the bottom of the outer and inner rust removal sleeves, the rust residue can be discharged through the bottom trough after the steel pipe rust removal is completed. The rust residue is then concentrated in the collection box that can be slidably connected inside the bottom sleeve through the hopper. This collection box facilitates the centralized collection of rust residue, making it easier to clean up the rust residue later and reducing the difficulty of cleaning it. Attached Figure Description

[0025] Figure 1 This is a schematic diagram of the structure of this utility model.

[0026] Figure 2 This is a schematic diagram of the structure of the external rust removal sleeve of this utility model.

[0027] Figure 3 This is a structural schematic diagram of the support base of this utility model.

[0028] Figure 4 This is a structural schematic diagram of the gantry frame of this utility model.

[0029] Figure 5 This is a structural schematic diagram of the support cylinder of this utility model.

[0030] Figure 6 This is a schematic diagram of the structure of the collection box of this utility model.

[0031] In the diagram: 1. Rust removal workbench; 2. Fixed support; 3. Transmission box; 4. Motor; 5. Fixing plate; 6. Connecting plate; 7. Outer rust removal sleeve; 8. Inner rust removal sleeve; 9. Fixing plate; 10. Bottom discharge chute; 11. Embedded ball bearings; 12. Support seat; 13. Support arc groove; 14. Rolling wheel; 15. Gantry frame; 16. Square sleeve; 17. Adjusting frame; 18. Limit bolt; 19. Support cylinder; 20. Support spring; 21. Conical support head; 22. Anti-slip groove; 23. Discharge hopper; 24. Bottom sleeve box; 25. Collection box. Detailed Implementation

[0032] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. However, it should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit its scope. Furthermore, descriptions of well-known structures and technologies are omitted in the following description to avoid unnecessarily obscuring the concept of the present utility model.

[0033] In the description of this utility model, it should be noted that when an element is referred to as being "fixed to" or "set on" another element, it can be directly on or indirectly on the other element. When an element is referred to as being "connected to" another element, it can be directly connected to or indirectly connected to the other element.

[0034] In the description of this utility model, it should be noted that the terms "center," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the product is in use. They are used only for the convenience of describing the invention and for simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the invention. Furthermore, the terms "first," "second," and "third," etc., are used only to distinguish descriptions and should not be construed as indicating or implying relative importance. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified. "Several" means one or more, unless otherwise explicitly specified.

[0035] In the description of this utility model, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set," "install," "connect," and "link" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances. Example

[0036] Please see Figure 1-6The present invention provides the following technical solution: a rust removal device for construction engineering, including a rust removal workbench 1, three sets of fixed supports 2 with the same spacing are installed on one side of the top of the rust removal workbench 1, a transmission box 3 is installed on one side of each of the three sets of fixed supports 2, a motor 4 is installed on one side of the transmission box 3, and the motor 4 is limited and installed on the top of the rust removal workbench 1 by a fixing plate 5.

[0037] On the other side of the three sets of fixed supports 2, a connecting plate 6 is rotatably connected. An outer rust-removing sleeve 7 is detachably connected to one side of the connecting plate 6. An inner rust-removing sleeve 8 is provided inside the outer rust-removing sleeve 7. The ends of both the outer and inner rust-removing sleeves 7 and 8 are connected to the ends of the fixed plate 9. A gear chain drive structure is provided inside the transmission box 3. The motor 4 is connected to the power input end of the gear chain drive structure via a drive shaft. The gear chain drive structure synchronously drives the three sets of connecting plates 6 to rotate via drive shafts. The drive shafts are rotatably connected to the interiors of the three sets of fixed supports 2, facilitating the synchronous rotation of multiple connecting plates 6 and fixed plates 9 by a single motor 4, thus synchronously driving multiple sets of outer rust-removing sleeves 7 and inner rust-removing sleeves 8. A [missing information - likely a device or component] is embedded on the inner side of the fixed plate 9. The inner side of the outer rust-removing sleeve 7 and the outer side of the inner rust-removing sleeve 8 are both equipped with rust-removing wire brushes. The rust-removing steel pipe is placed inside the outer rust-removing sleeve 7 and the inner rust-removing sleeve 8 and is in close contact with the rust-removing wire brushes. The end of the steel pipe is in contact with the surface of the embedded ball bearing 11. The outer rust-removing sleeve 7 can remove rust from the outer wall of the steel pipe through the rust-removing wire brush on its inner side wall, while the inner rust-removing sleeve 8 can remove rust from the inner wall of the steel pipe through the rust-removing wire brush on its outer side wall. The embedded ball bearing 11 allows the fixed plate 9 to drive the outer rust-removing sleeve 7 and the inner rust-removing sleeve 8 to rotate more flexibly. The fixed plate 9 and the connecting plate 6 are detachably connected. The bottom of the outer rust-removing sleeve 7 and the inner rust-removing sleeve 8 are both provided with bottom discharge grooves 10.

[0038] On the other side of the top of the rust removal workbench 1, support seats 12 are installed at three sets of fixed supports 2 respectively. The top of the support seat 12 is provided with a support arc groove 13, and several sets of rolling wheels 14 are rotatably connected at equal angles on the inner arc surface of the support arc groove 13. A rolling groove is opened on the inner wall of the inner arc surface of the support arc groove 13. The rolling wheels 14 are rotatably connected in the rolling groove through rolling shafts. The outer rust removal sleeve 7 is in contact with the rolling wheels 14, which facilitates the rolling support of the outer rust removal sleeve 7, making the outer rust removal sleeve 7 more flexible when rotating, and ensuring the flexibility of the outer rust removal sleeve 7 and the inner rust removal sleeve 8 when rotating along the steel pipe.

[0039] A gantry frame 15 is installed on the bottom of the rust removal workbench 1 on the same side as the support base 12. A square sleeve 16 is installed on the bottom of the gantry frame 15 corresponding to the support base 12. An adjustment frame 17 is telescopically slidably connected to the bottom inner side of the square sleeve 16. The edge of the square sleeve 16 is limited by a limit bolt 18 to limit the adjustment frame 17.

[0040] The end of the adjusting frame 17 is connected to the outer rust removal sleeve 7 and the inner rust removal sleeve 8, and the supporting cylinder 19 is connected to it. The inside of the square sleeve 16 is provided with a contraction chamber for the adjusting frame 17 to slide. The end of the limiting bolt 18 is in close contact with the edge of the adjusting frame 17, so that the position of the supporting cylinder 19 can be adjusted and limited by means of adjustment, so that the position of the supporting cylinder 19 can correspond more accurately with the position of the steel pipe. The inner side of the supporting cylinder 19 is equipped with a supporting spring 20, and the end of the supporting spring 20 is connected to a conical support head 21. The conical support head 21 slides along the inner wall of the supporting cylinder 19, so that the conical support head 21 can guide the sliding. The edge of the conical support head 21 is evenly provided with anti-slip grooves 22.

[0041] The bottom of the rust removal workbench 1 is connected to a hopper 23. A bottom sleeve 24 is installed at the bottom of the hopper 23, and a collection box 25 is slidably connected to the inner side of the bottom sleeve 24. The inner wall of the hopper 23 is set as a smooth slope, and a sliding groove is opened on the side of the bottom sleeve 24. The collection box 25 is slidably connected in the sliding groove, and a collection chamber is set inside the collection box 25. The rust residue is concentrated in the collection box 25 slidably connected to the inner side of the bottom sleeve 24 through the hopper 23. The rust residue is collected in a concentrated manner through the collection box 25, which facilitates convenient centralized cleaning of the rust residue in the future.

[0042] The working principle and usage process of this utility model are as follows: First, insert the steel pipe that needs to be derusted into the gap between the outer derusting sleeve 7 and the inner derusting sleeve 8, and make the steel pipe in close contact with the derusting wire brush on the inner wall of the outer derusting sleeve 7 and the outer wall of the inner derusting sleeve 8. The outer derusting sleeve 7 can derust the outer wall of the steel pipe through the derusting wire brush on its inner side wall, while the inner derusting sleeve 8 can derust the inner wall of the steel pipe through the derusting wire brush on its outer side wall. By utilizing the deformable characteristics of the derusting wire brush, the inner and outer walls of the steel pipe can be in close contact with the derusting wire brush.

[0043] Next, the position of the support cylinder 19 is adjusted and limited by the square sleeve 16, adjusting frame 17 and limiting bolt 18 at the bottom of the gantry frame 15, so that the position of the support cylinder 19 corresponds accurately with the position of the steel pipe. The conical support head 21 is supported by the support spring 20, so that the conical support head 21 can tightly abut against the end of the steel pipe. The anti-slip groove 22 on the side of the conical support head 21 is used to ensure the tightness of the contact between the conical support head 21 and the steel pipe, so that the steel pipe can maintain a stable position during rust removal and prevent the steel pipe from rotating with the outer rust removal sleeve 7 and the inner rust removal sleeve 8, which would cause incomplete rust removal.

[0044] Furthermore, through the elastic support of the conical support head 21, the end of the steel pipe can contact the embedded ball bearings 11 on the side of the fixed plate 9. Through the contact between the steel pipe and the embedded ball bearings 11, the fixed plate 9 can more flexibly drive the outer rust removal sleeve 7 and the inner rust removal sleeve 8 to rotate. At the same time, combined with the rotating roller 14 on the top of the support base 12, the outer rust removal sleeve 7 is rolled and supported, making the outer rust removal sleeve 7 more flexible when rotating. This ensures the flexibility of the outer rust removal sleeve 7 and the inner rust removal sleeve 8 when rotating along the steel pipe, enabling the outer rust removal sleeve 7 and the inner rust removal sleeve 8 to perform smooth rust removal operations on the steel pipe.

[0045] During the rust removal process, the motor 4 is started, and the transmission box 3 drives the motor 4 to simultaneously rotate multiple connecting discs 6 and fixed discs 9. This facilitates the rotation of multiple sets of outer rust removal sleeves 7 and inner rust removal sleeves 8, enabling simultaneous rust removal of the inner and outer walls of multiple sets of steel pipes inside the outer and inner rust removal sleeves 7 and 8. This ensures the efficiency of the rust removal operation. Combined with the bottom discharge troughs 10 opened at the bottom of the outer and inner rust removal sleeves 7 and 8, the rust residue attached to the rust removal wire brush can be discharged through the bottom discharge troughs 10 after the steel pipe rust removal is completed. The rust residue is then collected into the collection box 25 through the discharge hopper 23, facilitating subsequent centralized cleaning.

[0046] Finally, it should be noted that the above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A rust removal device for construction work, comprising a rust removal workbench (1), characterized in that: The top side of the rust removal workbench (1) is provided with three groups of fixed supports (2) with the same interval, one side of each of the three groups of fixed supports (2) is provided with a transmission box (3), one side of the transmission box (3) is provided with a motor (4), and the motor (4) is limitingly installed on the top of the rust removal workbench (1) through a fixed plate (5). The other side of each of the three groups of fixed supports (2) is rotatably connected with a connecting disc (6), one side of the connecting disc (6) is detachably connected with an outer rust removal sleeve (7), the inner side of the outer rust removal sleeve (7) is provided with an inner rust removal sleeve (8), the end of the outer rust removal sleeve (7) and the inner rust removal sleeve (8) is connected with a fixed disc (9), the inner side of the edge of the fixed disc (9) is embeddedly installed with an embedded ball (11), and the fixed disc (9) is detachably connected with the connecting disc (6), and the bottom of the outer rust removal sleeve (7) and the inner rust removal sleeve (8) is provided with a bottom discharging groove (10). The other side of the top of the rust removal workbench (1) is provided with a supporting seat (12) corresponding to the three groups of fixed supports (2), the top of the supporting seat (12) is provided with a supporting arc groove (13), and a plurality of groups of rolling wheels (14) are rotatably connected on the inner arc surface of the supporting arc groove (13) at equal angles.

2. A rust removal device for construction work according to claim 1, characterized in that: The inside of the transmission box (3) is provided with a toothed chain transmission structure, the motor (4) is connected with the power input end of the toothed chain transmission structure through a driving shaft, the toothed chain transmission structure drives the three groups of connecting discs (6) to rotate through a driving shaft, and the driving shaft is rotatably connected in the inside of the three groups of fixed supports (2).

3. The rust removal device for construction work according to claim 1, characterized by: The inner side of the outer rust removal sleeve (7) and the outer side of the inner rust removal sleeve (8) are provided with rust removal steel wire brushes, a steel pipe for rust removal is arranged in the inner side of the outer rust removal sleeve (7) and the inner rust removal sleeve (8) and is in close contact with the rust removal steel wire brushes, and the end of the steel pipe is in contact with the surface of the embedded ball (11).

4. The rust removal device for construction work according to claim 1, characterized by: The inner arc surface of the supporting arc groove (13) is provided with a rolling groove, the rolling wheel (14) is rotatably connected in the rolling groove through a rolling shaft, and the outer rust removal sleeve (7) is in contact with the rolling wheel (14).

5. The rust removal device for construction work according to claim 1, characterized by: The bottom of the rust removal workbench (1) is provided with a gantry (15) on the same side of the edge of the supporting seat (12), the bottom of the gantry (15) is provided with a square sleeve (16) corresponding to the supporting seat (12), the bottom inner side of the square sleeve (16) is telescopically and slidably connected with an adjusting frame (17), and the edge of the square sleeve (16) limits the adjusting frame (17) through a limiting bolt (18). The end of the adjusting frame (17) is connected with a supporting cylinder (19) corresponding to the outer rust removal sleeve (7) and the inner rust removal sleeve (8), the inner side of the supporting cylinder (19) is provided with a supporting spring (20), the end of the supporting spring (20) is connected with a conical supporting head (21), and the edge of the conical supporting head (21) is uniformly provided with an anti-skid groove (22).

6. A rust removal device for construction work according to claim 5, characterized in that: The inside of the square sleeve (16) is provided with a contraction chamber for the telescopic sliding of the adjusting frame (17), and the end of the limiting bolt (18) is in close contact with the edge of the adjusting frame (17). The conical support head (21) slides along the inner wall of the support cylinder (19).

7. The rust removal device for construction work according to claim 1, characterized by: The bottom end of the rust removal workbench (1) is connected with a falling hopper (23), the bottom of the falling hopper (23) is provided with a bottom sleeve box (24), and the inner side of the bottom sleeve box (24) is slidably connected with a collecting box (25).

8. A rust removal device for construction work according to claim 7, characterized in that: The inner wall of the falling hopper (23) is provided as a smooth inclined surface, the side edge of the bottom sleeve box (24) is provided with a sliding groove, the collecting box (25) is slidably connected in the sliding groove, and the inside of the collecting box (25) is provided with a collecting chamber.