A post-cast strip reinforcing steel rust removal device and a method of using the same

Abstract

This invention belongs to the technical field of rebar rust removal equipment, specifically a rust removal device for post-cast strip rebar and its usage method, including a frame and rust removal components. The rust removal components are installed on the frame, and the frame is rotatably mounted with wheels. This invention uses multiple brush rollers to perform rust removal operations on the rebar structure of the post-cast strip. By inserting multiple evenly arranged brush rollers into the gaps of the multi-layered mesh rebar structure, the bending and deformation properties of the brush bristles on the surface of the brush rollers increase the coverage of the rebar structure surface with brush bristles, thereby effectively reducing the cleaning dead corners during rust removal and enhancing the cleaning effect on the rebar structure.

Description

Technical Field

[0001] This invention belongs to the technical field of steel bar rust removal equipment, specifically a rust removal device for post-cast strip steel bars and its usage method. Background Technology

[0002] Post-pouring strips are temporary construction joints left at corresponding positions in foundation slabs, walls, and beams according to design or construction specifications. Because the steel reinforcement structure is built first and the concrete is poured later in post-pouring strips, and the time gap between the steel reinforcement building and the concrete pouring is relatively long, the steel reinforcement in post-pouring strips is prone to rusting.

[0003] Rusting of the reinforcing steel reinforcement in reinforced concrete structures can compromise the strength and durability of the concrete, severely impacting its quality. Therefore, when pouring concrete in post-cast strips, it is necessary to determine whether rust removal is required based on the rust condition of the steel reinforcement. Related technologies for rust removal of erected reinforcing steel structures mainly fall into two categories: chemical reagent rust removal and mechanical friction rust removal. Mechanical friction rust removal can be further subdivided into sandblasting, manual rust removal, and electro-brushing. In practical applications, since the reinforcing steel structure in post-cast strips is already erected and covers a large area with a significant workload, a convenient, fast, and low-damage method for rust removal is required. This places high demands on the rust removal operation.

[0004] In related technologies, to improve the efficiency of rust removal on large areas of reinforcing bars, mobile brushes are often used to remove rust from the reinforcing bar structure. For example, Chinese patent 2017108357449 discloses a rust removal device for reinforcing bars in construction. In this solution, a moving component drives the brush to move, thereby rubbing and removing rust from the surface of the reinforcing bar structure. However, when used in post-cast strips, it was found that, on the one hand, the reinforcing bar structure in the post-cast strip is not multiple layers, and the mobile brush is not convenient for removing rust from the deep reinforcing bars. On the other hand, due to the limitations of the post-cast strip structure, the contact efficiency between the brush and the side near the ground is low when removing rust from the reinforcing bars, resulting in too many dead corners in the rust removal operation. In view of this, the present invention proposes a rust removal device for reinforcing bars in post-cast strips and its usage method to solve the above-mentioned technical problems.

[0005] The information disclosed in this background section is intended only to enhance the understanding of the overall background of the present invention and should not be construed as an admission or in any way implying that the information constitutes prior art known to those skilled in the art. Summary of the Invention

[0006] To overcome the shortcomings of existing technologies and solve the aforementioned technical problems, this invention proposes a rust removal device for post-cast strip reinforcing bars and its usage method.

[0007] The technical solution adopted by the present invention to solve its technical problem is: a rust removal device for post-cast strip steel bars according to the present invention includes a frame and a rust removal component, wherein the rust removal component is installed on the frame and a traveling wheel is rotatably installed on the frame;

[0008] The rust removal component includes a mounting housing, which is mounted on a frame.

[0009] A hydraulic lifter is fixedly installed on the frame, the frame is matched with the mounting box, and the mounting box is fixedly connected to the output end of the hydraulic lifter.

[0010] Brush rollers, wherein evenly distributed brush rollers are installed at the bottom of the mounting box, and the brush rollers are roller-shaped structures with bristles fixedly installed on their surfaces;

[0011] A drive assembly for driving the brush roller to rotate.

[0012] Preferably, an installation plate is installed inside the installation box, and the installation plate has evenly distributed compensation grooves. A connecting rod is fixedly installed at one end of the brush roller near the installation box. The connecting rod corresponds to the compensation groove and extends into the installation box through the compensation groove. A limiting wheel is installed at the location of the connecting rod corresponding to the compensation groove. The limiting wheel has an I-shaped cross-section, and the diameters at both ends of the limiting wheel are larger than the diameter of the compensation groove.

[0013] Preferably, an adjustment plate is installed inside the mounting box, and the adjustment plate has evenly distributed adjustment grooves. The limiting wheel extends into the adjustment grooves, and a centering spring is fixedly installed in the circumferential direction of the limiting wheel. The end of the centering spring away from the limiting wheel is fixedly installed on the adjustment groove.

[0014] Preferably, the drive assembly includes a connecting plate and an electric telescopic rod. The connecting plate is slidably installed in the mounting box, and the electric telescopic rod is fixedly installed on the mounting plate. The output end of the electric telescopic rod is fixedly connected to the connecting plate.

[0015] The deflection groove is provided on the connecting plate. The connecting rod extends into the deflection groove and a connecting plate is fixedly installed on the connecting rod in the deflection groove. The deflection grooves are all T-shaped designs, and the smallest diameter of the deflection groove is the same as the diameter of the compensation groove.

[0016] The connecting rod has a threaded groove, and the nut is fixedly installed on the limiting wheel. The limiting wheel is driven by the nut and the threaded groove 44 to the connecting rod.

[0017] Preferably, a push plate is fixedly installed on the connecting plate, the push plate extends to the side wall of the adjusting plate, and the side of the push plate near the adjusting plate has a wave-shaped design.

[0018] Preferably, the number of push plates is four, and they are evenly distributed on the side wall of the adjustment plate, with the corresponding two push plates being staggered.

[0019] Preferably, the brush roller is a hollow structure, with an adjusting rod slidably installed inside the brush roller, and evenly distributed adjusting rings on the outer sleeve of the brush roller. A linkage groove is provided on the brush roller, and the adjusting rod is fixedly connected to the adjusting rings through the linkage groove. Multiple adjusting rings divide the bristles into multiple segments, and the adjusting rings are used to adjust the tilt direction of the bristles.

[0020] Preferably, the connecting rod is a hollow tube, the inner cavity of the connecting rod is conductively connected to the inner cavity of the brush roller, a connecting ring is rotatably mounted on the connecting rod, an aeration pump is mounted on the frame, the output end of the aeration pump is conductively connected to the connecting ring through a pipe, a through hole is opened on the connecting rod, the inner cavity of the connecting rod is conductively connected to the connecting ring through the through hole, and uniformly distributed air jet holes are opened on the brush roller.

[0021] Preferably, a piston is slidably installed in the inner cavity of the connecting rod, the adjusting rod extends into the inner cavity of the connecting rod and is fixedly connected to the piston, a support spring is fixedly installed at the end of the connecting rod away from the piston, the piston is clearance-fitted with the inner cavity of the connecting pipe, and the output of the aeration pump changes periodically.

[0022] A method for using a rust removal device for post-cast strip reinforcement bars, the method comprising the following steps:

[0023] S1: Push the rust removal device above the post-cast strip steel reinforcement structure. Under the control of the hydraulic lift, the installation box is lowered, causing the brush roller to be inserted into the gap of the steel reinforcement structure.

[0024] S2: The drive component drives the brush roller to move up and down and rotate simultaneously. When the brush roller moves, it causes relative movement between the brush bristles and the steel structure, and the friction force causes the rust to fall off the steel structure.

[0025] S3: After the current area is cleaned, the installation box and brush roller are raised by the hydraulic lift, which pushes the frame to move. After changing the position, the above actions are repeated to achieve the rust removal operation of the post-pouring strip.

[0026] The beneficial effects of this invention are as follows:

[0027] 1. The present invention discloses a rust removal device for post-cast strip steel reinforcement and its usage method. By setting multiple brush rollers, when performing rust removal operations on the steel reinforcement structure of the post-cast strip, the multiple brush rollers evenly arranged are inserted into the gaps of the multi-layer mesh steel reinforcement structure. By utilizing the bending and deformation properties of the brush bristles on the surface of the brush rollers, the surface of the steel reinforcement structure is covered by brush bristles to increase the degree of coverage, thereby effectively reducing the cleaning dead corners during rust removal and enhancing the cleaning effect on the steel reinforcement structure.

[0028] 2. The post-cast strip rebar rust removal device and its usage method described in this invention use a driving device to cause the brush roller to simultaneously rise, fall, and rotate between multiple layers of mesh rebar structures. This causes relative motion between the brush bristles and the rebar structure in multiple opposite directions, resulting in frictional resistance between the brush bristles and the rebar structure in multiple directions. At the same time, the change in the position of the brush bristles increases the degree of contact and the uniformity of contact between the brush bristles and the gaps in the rebar structure, thereby effectively enhancing the rust removal effect on the rebar structure. Attached Figure Description

[0029] The invention will now be further described with reference to the accompanying drawings.

[0030] Figure 1 This is a perspective view of the post-cast strip steel reinforcement rust removal device of the present invention;

[0031] Figure 2 This is an assembly perspective view of the mounting box and brush roller of the present invention;

[0032] Figure 3 It is a 3D view of the assembly of the adjusting plate and the limit wheel;

[0033] Figure 4 yes Figure 3 A magnified view of a section at point A in the middle;

[0034] Figure 5 It is a 3D view of the assembly of the limit wheel and the mounting plate;

[0035] Figure 6 yes Figure 5 A magnified view of a section at point B in the middle;

[0036] Figure 7 It is a 3D view of the connecting plate;

[0037] Figure 8 It is a 3D view of the assembly of the connecting rod and the brush roller;

[0038] Figure 9 This is a partial three-dimensional structural view of the present invention;

[0039] Figure 10 It is a 3D assembly diagram of the push plate and the adjustment plate;

[0040] Figure 11 This is a sectional view of the mounting box;

[0041] Figure 12 This is a cross-sectional view of the connecting rod and the brush roller;

[0042] Figure 13 yes Figure 12 A magnified view of a section at point C;

[0043] Figure 14 yes Figure 12 A magnified view of a section at point D;

[0044] Figure 15 yes Figure 12 A magnified view of a section at point E in the middle;

[0045] Figure 16 yes Figure 12 A magnified view of a section at point F in the middle;

[0046] Figure 17 This is a flowchart of the method of the present invention;

[0047] In the diagram: 1. Frame; 11. Traveling wheel; 2. Mounting box; 21. Hydraulic lifter; 22. Mounting plate; 23. Compensation groove; 24. Connecting rod; 25. Limiting wheel; 26. Adjusting plate; 27. Adjusting groove; 28. Centering spring; 3. Brush roller; 31. Adjusting rod; 32. Adjusting ring; 33. Linkage groove; 34. Connecting ring; 35. Aeration pump; 36. Guide hole; 37. Air jet hole; 38. Piston; 39. Support spring; 4. Connecting plate; 41. Electric telescopic rod; 42. Deflection groove; 43. Connecting disc; 44. Threaded groove; 45. Nut; 5. Push plate. Detailed Implementation

[0048] To make the technical means, creative features, objectives and effects of this invention easier to understand, the invention will be further described below in conjunction with specific embodiments.

[0049] like Figures 1 to 17 As shown, the present invention provides a rust removal device for post-cast strip steel reinforcement and its usage method, comprising a frame 1 and a rust removal component, wherein the rust removal component is installed on the frame 1, and a traveling wheel 11 is rotatably installed on the frame 1;

[0050] The rust removal component includes a mounting box 2, which is mounted on a frame 1;

[0051] Hydraulic lifter 21, the frame 1 is fixedly installed on the frame 1, the frame 1 is matched with the mounting box 2, and the mounting box 2 is fixedly connected to the output end of the hydraulic lifter 21;

[0052] Brush roller 3: The bottom of the mounting box 2 is equipped with evenly distributed brush rollers 3, which are roller-shaped structures with bristles fixedly mounted on their surface.

[0053] A drive assembly for driving the brush roller 3 to rotate;

[0054] Because the steel reinforcement in the post-cast strip is exposed to air for a long time, rust will form on its surface after oxidation. Before subsequent construction, the steel reinforcement needs to be derusted. Since the post-cast strip is long and the steel reinforcement in the post-cast strip is distributed in a multi-layered grid, in order to enhance the cleaning effect of the steel reinforcement surface and improve the rust cleaning efficiency, the present invention uses a drive component to drive evenly arranged brush rollers 3 to clean the steel reinforcement.

[0055] Specifically, during the rust removal operation, workers push the frame 1 to move the rust removal device onto the post-cast strip steel reinforcement structure. Then, by operating the hydraulic lift 21, the worker controls its descent. As the hydraulic lift 21 descends, the mounting box 2 gradually moves downwards, causing the brush rollers 3 below the mounting box 2 to insert into the mesh of the multi-layered steel reinforcement structure. During insertion, the bristles on the surface of the brush rollers 3 have excellent bending properties, and the brush roller 3 has a small diameter, allowing it to smoothly insert into the gaps in the steel reinforcement structure. When the brush roller 3 reaches the depth expected by the worker, the hydraulic lift 21 is fixed. At this point, driven by the drive assembly, multiple brush rollers 3 rotate. During the rotation of the brush rollers 3, the bristles on the brush rollers 3 interact with the steel reinforcement structure... Friction is generated between them, and the friction causes the iron filings on the surface of the steel structure to fall off, thereby achieving the rust removal operation of the steel structure. At the same time, since the bristles on the surface of the brush roller 3 are elastic, when the brush roller 3 is inserted between the steel structures, the bristles on multiple brush rollers 3 cooperate with each other, resulting in a high degree of coverage of the multi-layer mesh steel structure by the bristles. Therefore, the dead corners of the steel structure are effectively reduced. It should be noted that in order to enhance the cleaning effect of the bristles on the surface of the steel bars, the bristles are preferably made of elastic steel wire, iron wire or other metal wire structure, and the brush roller 3 is preferably made of elastic materials such as rubber. After the steel structure at the current position is cleaned, the operator operates the hydraulic lift 21 and the frame 1 again until the rust removal device changes position, thereby achieving the cleaning of the steel structure in the post-cast strip.

[0056] This invention, by setting multiple brush rollers 3, when performing rust removal operations on the steel reinforcement structure of the post-cast strip, inserts multiple evenly arranged brush rollers 3 into the gaps of the multi-layer mesh steel reinforcement structure. Utilizing the bending and deformation properties of the bristles on the surface of the brush rollers 3, the degree of coverage of the steel reinforcement structure surface by the bristles is increased, thereby effectively reducing the cleaning dead corners during rust removal of the steel reinforcement structure and enhancing the cleaning effect on the steel reinforcement structure.

[0057] In a preferred embodiment of the present invention, an installation plate 22 is installed inside the installation housing 2. The installation plate 22 has uniformly distributed compensation grooves 23. A connecting rod 24 is fixedly installed on one end of the brush roller 3 near the installation housing 2. The connecting rod 24 corresponds to the compensation groove 23 and extends into the installation housing 2 through the compensation groove 23. A limiting wheel 25 is installed on the connecting rod 24 at the location corresponding to the compensation groove 23. The limiting wheel 25 has an I-shaped cross-section and the diameters at both ends of the limiting wheel 25 are larger than the diameter of the compensation groove 23.

[0058] In practical applications, since the neatness of the steel reinforcement structure is uncontrollable, when inserting the brush roller 3 into the gap of the steel reinforcement structure, the position of the brush roller 3 can be adjusted by setting a compensation groove 23 and a limiting wheel 25. Specifically, during installation, the limiting wheel 25 is installed in the compensation groove 23 on the mounting plate 22. The diameter of the compensation groove 23 is larger than the diameter of the middle part of the limiting wheel 25 but smaller than the maximum diameter of the limiting wheel 25. The connecting rod 24, which is fixedly installed at the top of the brush roller 3, is installed on the limiting wheel 25. When the brush roller 3 is inserted into the steel reinforcement structure, the brush roller 3 body is blocked by the steel reinforcement. At this time, the brush roller 3 undergoes a certain deformation. Under the action of the interaction force, the brush roller 3 and the connecting rod 24 push the limiting wheel 25, causing the limiting wheel 25 to move within the range of the compensation groove 23. This causes the brush roller 3 to be misaligned with the steel reinforcement, making it easier for multiple brush rollers 3 to be inserted into the gap of the steel reinforcement structure.

[0059] In a preferred embodiment of the present invention, an adjustment plate 26 is installed inside the mounting box 2. The adjustment plate 26 has evenly distributed adjustment grooves 27. The limiting wheel 25 extends into the adjustment grooves 27. Evenly distributed centering springs 28 are fixedly installed on the circumference of the limiting wheel 25. The end of the centering spring 28 away from the limiting wheel 25 is fixedly installed on the adjustment groove 27.

[0060] To standardize the management of the position of the brush roller 3, when the brush roller 3 is not obstructed by the reinforcing bars, the centering spring 28 between the adjusting groove 27 and the limiting wheel 25 applies an elastic force to the limiting wheel 25, causing the limiting wheel 25 to be at the center of the adjusting groove 27. At this time, the center of the adjusting groove 27 is aligned with the center of the compensation groove 23, thus making the multiple brush rollers 3 evenly arranged and keeping the gap between the multiple brush rollers 3 consistent. This reduces the overlap of the cleaning range of the brush rollers 3 and increases the uniformity of cleaning the reinforcing bar structure.

[0061] In a preferred embodiment of the present invention, the drive assembly includes a connecting plate 4 and an electric telescopic rod 41. The connecting plate 4 is slidably installed in the mounting box 2, and the electric telescopic rod 41 is fixedly installed on the mounting plate 22. The output end of the electric telescopic rod 41 is fixedly connected to the connecting plate 4.

[0062] The deflection groove 42 is provided on the connecting plate 4. The connecting rod 24 extends into the deflection groove 42, and the connecting rod 24 is fixedly installed with the connecting plate 43 in the deflection groove 42. The deflection grooves 42 are all T-shaped designs, and the smallest diameter of the deflection groove 42 is the same as the diameter of the compensation groove 23.

[0063] The connecting rod 24 has a threaded groove 44 and a nut 45. The nut 45 is fixedly installed on the limiting wheel 25. The limiting wheel 25 is driven by the nut 45, the threaded groove 44 and the connecting rod 24 through a helical transmission.

[0064] After the brush roller 3 is inserted into the gap of the steel structure, the operator uses a pre-set program to cause the electric telescopic rod 41 to periodically extend and retract. During the extension and retraction of the electric telescopic rod 41, it pushes and pulls the connecting plate 4. The connecting rod 24 has a connecting plate 43 fixedly installed at its top, and both the connecting plate 43 and the connecting rod 24 extend into the deflection groove 42. The size of the deflection groove 42 is the same as that of the compensation groove 23. When the connecting rod 24 moves horizontally due to the influence of the brush roller 3, the presence of the deflection groove 42 can both limit the connection plate 43 and enable the connection plate 43 and the connecting rod 24 to move. When the connecting plate 4 moves up and down, the connecting plate 4 synchronously drives the connecting plate 43 and the connecting rod 24 to move up and down. The connecting rod 24 is fixedly connected to the brush roller 3 at the bottom. The connecting rod 24 has a threaded groove 44 in the middle and is driven by the threaded groove 44, nut 45 and limit wheel 25 through the screw drive. Therefore, when the connecting rod 24 is raised and lowered, the limit wheel 25 has a tendency to rotate under the cooperation of nut 45 and threaded groove 44. However, under the restriction of the centering spring 28 fixedly connected to the limit wheel 25, the limit wheel 25 does not have the ability to rotate significantly in the adjustment groove 27. Therefore, under the action of reaction force, the connecting rod 24 and brush roller 3 rotate. In order to reduce the friction between the connecting plate 4 and the connecting disk 43, evenly distributed balls are provided between the connecting disk 43 and the connecting plate 4, so that the frictional resistance is small when the connecting disk 43 rotates.

[0065] This invention uses a driving device to simultaneously raise, lower, and rotate the brush roller 3 between multiple layers of mesh steel reinforcement structures, thereby causing relative motion between the brush bristles and the steel reinforcement structure in multiple opposite directions. This results in frictional resistance between the brush bristles and the steel reinforcement structure in multiple directions. At the same time, the change in the position of the brush bristles increases the degree of contact and the uniformity of contact between the brush bristles and the gaps in the steel reinforcement structure, thus effectively enhancing the rust removal effect on the steel reinforcement structure.

[0066] In a preferred embodiment of the present invention, a push plate 5 is fixedly installed on the connecting plate 4. The push plate 5 extends to the side wall of the adjusting plate 26, and the side of the push plate 5 near the adjusting plate 26 has a wave-shaped design.

[0067] The number of push plates 5 is four, and they are evenly distributed on the side wall of the adjustment plate 26, with the corresponding two push plates 5 being staggered.

[0068] During rust removal operations, in order to further enhance the mobility of the brush roller 3 and reduce rust removal dead angles, the push plate 5 fixedly connected to the connecting plate 4 rises and falls synchronously when the connecting plate 4 is raised and lowered. Since the connecting plate 4 is wavy on the side facing the adjusting plate 26 and the two corresponding push plates 5 are staggered, the push plate 5 applies a pushing force to the adjusting plate 26 when the push plate 5 rises and falls, causing the adjusting plate 26 to move repeatedly in the horizontal direction, causing the position of the adjusting groove 27 to change. Through the extension and retraction of the centering spring 28, the position of the limiting wheel 25 and the connecting rod 24 is changed, thereby expanding the range of motion of the brush roller 3, enhancing the mobility of the brush roller 3, enhancing the rust removal effect of the brush roller 3 on the steel structure, and reducing rust removal dead angles. It should be noted that the mounting plate 22 has a notch corresponding to the push plate 5 to facilitate the raising and lowering movement of the push plate 5.

[0069] In a preferred embodiment of the present invention, the brush roller 3 is a cavity structure, an adjusting rod 31 is slidably installed inside the brush roller 3, and an evenly distributed adjusting ring 32 is provided on the outer sleeve of the brush roller 3. A linkage groove 33 is provided on the brush roller 3, and the adjusting rod 31 is fixedly connected to the adjusting ring 32 through the linkage groove 33. The multiple adjusting rings 32 divide the bristles into multiple segments, and the adjusting rings 32 are used to adjust the tilt direction of the bristles.

[0070] During the manufacturing of the brush roller 3, the bristles are fixedly installed on the brush roller 3. Under the isolation effect of the adjusting ring 32, the bristles are in multiple segments. However, due to the bending properties of the bristles themselves, the degree of dispersion of the bristles at the end away from the brush roller 3 is relatively large, resulting in the overall shape of the bristles on the brush roller 3 still being cylindrical. In order to adjust the tilt angle of the bristles, the adjusting rod 31 inside the brush roller 3 is pushed. By using the connection between the adjusting rod 31 and the adjusting ring 32, the adjusting ring 32 is lowered or raised on the brush roller 3. When the adjusting ring 32 moves, it pushes the bristles, which increases the tendency of the bristles to tilt upward or downward, thereby achieving the adjustment of the bristles.

[0071] In a preferred embodiment of the present invention, the connecting rod 24 is a hollow tube, the inner cavity of the connecting rod 24 is conductively connected to the inner cavity of the brush roller 3, a connecting ring 34 is rotatably mounted on the connecting rod 24, an aeration pump 35 is mounted on the frame 1, the output end of the aeration pump 35 is conductively connected to the connecting ring 34 through a pipe, a through hole 36 is provided on the connecting rod 24, the inner cavity of the connecting rod 24 is conductively connected to the connecting ring 34 through the through hole 36, and uniformly distributed air jet holes 37 are provided on the brush roller 3;

[0072] During the rust removal operation, the rust that falls off is scattered in the gaps between the brush bristles. At this time, air is pumped into the connecting ring 34 by the aeration pump 35. The air flows along the connecting ring 34 and the guide hole 36 into the connecting rod 24 and the brush roller 3. Finally, it is sprayed outward through the air jet hole 37 and the linkage groove 33 on the brush roller 3. When the air jet is sprayed, it accelerates the movement of the rust out of the brush bristles on the one hand, and blows the steel structure on the other hand, accelerating the rust to fall off.

[0073] In a preferred embodiment of the present invention, a piston 38 is slidably installed in the inner cavity of the connecting rod 24, the adjusting rod 31 extends into the inner cavity of the connecting rod 24 and is fixedly connected to the piston 38, a support spring 39 is fixedly installed at the end of the connecting rod 24 away from the piston 38, the piston 38 is clearance-fitted with the inner cavity of the connecting pipe, and the output of the aeration pump 35 changes periodically.

[0074] When the output of the aeration pump 35 changes periodically, the air flow rate delivered to the inner cavity of the connecting rod 24 changes periodically. When the air flow rate is greater than the flow rate between the piston 38 and the inner cavity of the connecting pipe, as the air pressure in the inner cavity of the connecting rod 24 gradually increases, the air pressure pushes the piston 38 towards the brush roller 3, which in turn causes the adjusting rod 31 to press the support spring 39. The movement of the adjusting rod 31 changes the tilt direction of the brush bristles. Conversely, when the air flow rate delivered to the inner cavity of the connecting rod 24 decreases, as the air pressure gradually decreases, under the elastic force of the support spring 39, the piston 38 and the adjusting rod 31 return to their original positions, which also changes the tilt trend of the brush bristles. By changing the direction of the brush bristles during the rust removal operation, it is possible to coordinate with the movement of the brush roller 3 to reduce the dead angles in the rust removal of the steel structure.

[0075] A method for using a rust removal device for post-cast strip reinforcement bars, the method comprising the following steps:

[0076] S1: Push the rust removal device above the post-cast strip steel reinforcement structure. Under the control of the hydraulic lifter 21, the installation box 2 is lowered, causing the brush roller 3 to be inserted into the gap of the steel reinforcement structure.

[0077] S2: The drive component drives the brush roller 3 to move up and down and rotate simultaneously. When the brush roller 3 moves, it causes relative movement between the brush bristles and the steel structure, and the friction force causes the rust to fall off the steel structure.

[0078] S3: After the current area is cleaned, the installation box 2 and brush roller 3 are raised under the action of the hydraulic lifter 21, which pushes the frame 1 to move. After changing the position, the above actions are repeated to achieve the rust removal operation of the post-pouring strip.

[0079] The foregoing has shown and described the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of the invention. Various changes and modifications can be made to the invention without departing from its spirit and scope, and all such changes and modifications fall within the scope of the present invention as claimed. The scope of protection of the present invention is defined by the appended claims and their equivalents.

Claims

1. A rust removal device for post-cast strip reinforcement bars, comprising a frame (1) and a rust removal component, wherein the rust removal component is installed on the frame (1), and the frame (1) is rotatably mounted with traveling wheels (11). characterized in that The rust removal assembly includes a mounting box (2), which is mounted on a frame (1); Hydraulic lifter (21), the frame (1) is fixedly installed with hydraulic lifter (21), the frame (1) is matched with the mounting box (2), and the mounting box (2) is fixedly connected to the output end of hydraulic lifter (21); Brush roller (3), the bottom of the mounting box (2) is equipped with a uniformly distributed brush roller (3), the brush roller (3) is a roller-shaped structure with bristles fixedly mounted on its surface; A drive assembly for driving the brush roller (3) to rotate; An installation plate (22) is installed inside the installation box (2). The installation plate (22) has uniformly distributed compensation grooves (23). A connecting rod (24) is fixedly installed on one end of the brush roller (3) near the installation box (2). The connecting rod (24) corresponds to the compensation groove (23), and the connecting rod (24) extends into the installation box (2) through the compensation groove (23). A limiting wheel (25) is installed on the connecting rod (24) at the location corresponding to the compensation groove (23). The limiting wheel (25) has an I-shaped cross-section, and the diameters at both ends of the limiting wheel (25) are larger than the diameter of the compensation groove (23). An adjustment plate (26) is installed inside the mounting box (2). The adjustment plate (26) has evenly distributed adjustment grooves (27). The limiting wheel (25) extends into the adjustment grooves (27). Evenly distributed centering springs (28) are fixedly installed on the circumference of the limiting wheel (25). The end of the centering spring (28) away from the limiting wheel (25) is fixedly installed on the adjustment grooves (27). The drive assembly includes a connecting plate (4) and an electric telescopic rod (41). The connecting plate (4) is slidably installed inside the mounting box (2). The electric telescopic rod (41) is fixedly installed on the mounting box (2). The output end of the electric telescopic rod (41) is fixedly connected to the connecting plate (4). The deflection groove (42) is provided on the connecting plate (4). The connecting rod (24) extends into the deflection groove (42), and the connecting rod (24) is fixedly installed in the deflection groove (42) with a connecting plate (43). The deflection grooves (42) are all T-shaped, and the smallest diameter of the deflection groove (42) is the same as the diameter of the compensation groove (23). The connecting rod (24) has a threaded groove (44) and a nut (45). The nut (45) is fixedly installed on the limiting wheel (25). The limiting wheel (25) is driven by the nut (45), the threaded groove (44) and the connecting rod (24) through a screw drive. The brush roller (3) is a hollow structure. An adjusting rod (31) is slidably installed inside the brush roller (3). The brush roller (3) is covered with evenly distributed adjusting rings (32). A linkage groove (33) is opened on the brush roller (3). The adjusting rod (31) is fixedly connected to the adjusting ring (32) through the linkage groove (33). Multiple adjusting rings (32) divide the bristles into multiple segments. The adjusting rings (32) are used to adjust the tilt direction of the bristles. The connecting rod (24) is a hollow tube. The inner cavity of the connecting rod (24) is connected to the inner cavity of the brush roller (3). A connecting ring (34) is rotatably installed on the connecting rod (24). An aeration pump (35) is installed on the frame (1). The output end of the aeration pump (35) is connected to the connecting ring (34) through a pipe. A through hole (36) is opened on the connecting rod (24). The inner cavity of the connecting rod (24) is connected to the connecting ring (34) through the through hole (36). A uniformly distributed jet hole (37) is opened on the brush roller (3). A piston (38) is slidably installed in the inner cavity of the connecting rod (24). The adjusting rod (31) extends into the inner cavity of the connecting rod (24) and is fixedly connected to the piston (38). A support spring (39) is fixedly installed at the end of the adjusting rod (31) away from the piston (38). The piston (38) is in clearance fit with the inner cavity of the connecting pipe. The output of the aeration pump (35) changes periodically.

2. The rust removal device for post-cast strip reinforcement according to claim 1, characterized in that: A push plate (5) is fixedly installed on the connecting plate (4). The push plate (5) extends to the side wall of the adjusting plate (26), and the push plate (5) is wavy on the side near the adjusting plate (26).

3. The post-cast strip steel wire rust removal device according to claim 2, characterized in that: The number of push plates (5) is four, and they are evenly distributed on the side wall of the adjustment plate (26), with the corresponding two push plates (5) being staggered.

4. A method of using a post-pouring belt steel bar rust removal device, characterized in that: This method of use is applicable to the post-cast strip reinforcement rust removal device described in claim 3 above, and the method of use includes the following steps: S1: Push the rust removal device above the post-cast strip steel reinforcement structure. Under the control of the hydraulic lifter (21), the installation box (2) is lowered, causing the brush roller (3) to be inserted into the gap of the steel reinforcement structure. S2: The drive assembly drives the brush roller (3) to move up and down and rotate at the same time. When the brush roller (3) moves, it causes relative movement between the brush bristles and the steel structure, and the friction force causes the rust to fall off the steel structure. S3: After the current area is cleaned, the installation box (2) and brush roller (3) are raised under the action of the hydraulic lifter (21), which pushes the frame (1) to move. After changing the position, repeat steps S1-S3 to achieve the rust removal operation of the post-pouring strip.

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