A reinforcing steel bar rust removal device convenient for fixing on a construction site

Abstract

The application provides a reinforcing steel bar rust removal device convenient to fix for a construction site, and relates to the technical field of reinforcing steel bar rust removal. The reinforcing steel bar rust removal device convenient to fix for a construction site comprises a pushing mechanism and a rust removal mechanism installed at the rear end of the pushing mechanism. The pushing mechanism comprises a first shell. A receiving platform is fixedly installed at the bottom of the inner wall of the first shell. A jacking block that can slide up and down is installed inside the receiving platform. The third belt pulley in the pushing mechanism pulls backward to make the two first pushing wheels close to each other and clamp the reinforcing steel bar body. The arrangement of the plurality of clamping wheel sets can fix the reinforcing steel bar body at the central position, so that the device can adapt to reinforcing steel bar bodies of different diameters for rust removal. The gap between the three groups of steel wire bristles increases with the increase of the diameter of the reinforcing steel bar body, so that the steel wire bristles can also maintain a stable distance from the reinforcing steel bar body when removing rust from the surface of reinforcing steel bar bodies of different diameters, thereby improving the service life of the steel wire bristles of the device.

Description

Technical Field

[0001] This invention relates to the field of steel bar rust removal technology, specifically a steel bar rust removal device that is easy to fix on construction sites. Background Technology

[0002] Reinforcing bars refer to steel used in reinforced concrete and prestressed reinforced concrete. When reinforcing bars are left for a long time, they will come into contact with water and air, which will cause iron oxide, or rust, to appear on their surface. If the rust on the reinforcing bars is not cleaned, it will affect the load-bearing capacity of the reinforcing bars. Therefore, rust removal treatment is required before use.

[0003] CN212122796U discloses a rebar rust removal device for construction sites, including a base, a column fixedly connected to the top surface of the base, and a shell fixedly connected to the top of the column. The shell has an entry hole and an inner cavity on its left and right sides, respectively. An annular groove is formed on the left side of the inner cavity, and a ring plate is movably engaged inside the annular groove. This rebar rust removal device for construction sites utilizes the entry hole and inner cavity on the left and right sides of the shell, and the movably fitted ring plate and rotating ring inside the shell. The rotating ring rotates by the meshing of teeth on the outer surface of the rotating ring and an external gear, driven by a motor. This rotation drives the rust removal sleeve fitted inside the rotating ring to rotate. A rust removal rod added inside the rust removal sleeve completely removes rust from the outer surface of the rebar fitted into the rust removal sleeve during rotation, avoiding repeated manual rust removal with a hand-held abrasive wheel, improving rust removal efficiency, and offering convenient use.

[0004] However, in actual use, the device requires pushing individual steel bars into the entry hole, which requires manual operation or additional pushing equipment for docking, making the operation inconvenient. In addition, the commonly used rust removal material in the existing technology is a wire brush. When cleaning steel bars, if the root of the wire brush is too close to the steel bar, the wire brush will deform too much. Long-term use will cause the wire brush to deform and affect the rust removal effect. Summary of the Invention

[0005] The purpose of this invention is to provide a steel bar rust removal device that is easy to fix on construction sites, aiming to solve the problems of inconvenient rust removal process and deformation of wire brushes after long-term use, which affect the rust removal effect, in general technologies for steel bar rust removal devices that are easy to fix on construction sites.

[0006] To achieve the above objectives, the present invention adopts the following technical solution: the steel bar rust removal device for easy fixing at construction sites includes a pushing mechanism and a rust removal mechanism installed at the rear end of the pushing mechanism. The pushing mechanism includes a first housing, a receiving platform fixedly installed at the bottom of the inner wall of the first housing, and a lifting block that can slide up and down installed inside the receiving platform. The lifting block is used to lift the steel bar bodies placed on the receiving platform one by one. Top plates are fixedly installed at the top of both the front and rear ends of the first housing, and a feeding mechanism is fixedly installed at the bottom of the top plate. The feeding mechanism is used to transport the steel bar bodies lifted by the lifting block one by one to the rust removal mechanism for rust removal. The rust removal mechanism includes a second housing. Multiple guide wheel assemblies for conveying the reinforcing bar body are fixedly installed on the top and bottom of the inner wall of the second housing. Each guide wheel assembly includes two symmetrical clamping wheel sets. A first transmission mechanism is provided at the front end of both the top and bottom of the inner wall of the second housing. A cleaning mechanism for removing rust from the reinforcing bar body conveyed by the first transmission mechanism is provided at the middle of both the top and bottom of the inner wall of the second housing. A second transmission mechanism is shared between the first transmission mechanism and the cleaning mechanism. The first transmission mechanism can drive the second transmission mechanism to adjust the cleaning mechanism as the diameter of the reinforcing bar body changes.

[0007] The beneficial effects are as follows: the third pulley in the pushing mechanism pulls backward, causing the two first pushing wheels to move closer together and clamp the rebar body. When the two first pushing wheels push the rebar body into the rust removal mechanism, the rebar body also pushes away the two second pushing wheels and the first thrust spring on the last side. The setting of multiple clamping wheel sets can fix the rebar body in the center position and make the device adaptable to rebar bodies of different diameters for rust removal, thus improving the applicability of the device. As the diameter of the rebar body to be rusted increases, under the action of the first and second transmission mechanisms, the movable brushes on both sides will be pushed to the sides, and the positioning sleeve will also move upward, so that the wire brush bristles cover the surface of the rebar body. The ends of the wire brush bristles can still contact the outer surface of the rebar body. The gap between the three sets of wire brush bristles will increase with the increase of the diameter of the rebar body, so that when the wire brush bristles remove rust from the surface of rebar bodies of different diameters, they will also maintain a stable distance from the rebar body, preventing the roots of the wire brush bristles from bending and deforming due to long-term work, thus improving the service life of the wire brush bristles of the device, extending the continuous use time of the device, and thus improving work efficiency.

[0008] A further technical solution of the present invention is that support legs for supporting the bottom of the second housing are fixedly installed at the four corners of the bottom of the second housing, and a perforated mesh for discharging the rust that has been cleaned off the steel bar body is installed in the middle of the bottom wall of the second housing.

[0009] A further technical solution of the present invention is that the clamping wheel assembly includes a fixed sleeve, the fixed sleeve is fixedly connected to the inner wall of the second housing, an installation block is slidably connected to one end of the fixed sleeve near the steel bar body, a second push wheel is rotatably installed on one end of the installation block away from the fixed sleeve, and a first thrust spring is provided on one end of the installation block away from the second push wheel. The first thrust spring is fixedly installed between the installation block and the inner wall of the second housing.

[0010] A further technical solution of the present invention is that the first transmission mechanism includes a second fixed block and a second drive motor. The second fixed block is fixedly installed on the upper or lower wall of the inner surface of the second housing. A second thrust spring is provided at the front end of the second fixed block, and a second movable block is provided at the front end of the second thrust spring. The second movable block is slidably connected to the inner surface of the second housing. The second thrust spring is fixedly installed between the second fixed block and the second movable block. A sixth pulley is provided on the outer surface of the second movable block. The sixth pulley and the second movable block are rotatably connected. The second drive motor is fixedly installed on the upper or lower wall of the inner surface of the second housing. A fourth pulley is fixedly installed at the output end of the second drive motor. The fourth pulley is rotatably installed on the outer surface of the corresponding fixed sleeve located at the rear end. A fifth pulley is also rotatably installed on the outer surface of the mounting block located at the rear end. The fifth pulley is coaxial with the corresponding second push wheel. A second transmission belt is wound together between the fourth pulley, the fifth pulley, and the sixth pulley. The second drive motor can drive the fifth pulley and the sixth pulley to rotate synchronously through the second transmission belt, so that the second push wheel coaxial with the fifth pulley rotates synchronously.

[0011] A further technical solution of the present invention is that the second transmission mechanism includes a first rotating rod and a second rotating rod. The first rotating rod is rotatably mounted on the front end of the second movable block on the corresponding side, and the second rotating rod is rotatably mounted on the rear end of the positioning sleeve on the corresponding side. Positioning rods are fixedly installed on the upper and lower parts between the left and right side walls of the inner surface of the second housing. A third rotating rod is provided between the first rotating rod and the second rotating rod. The two ends of the third rotating rod are rotatably connected to the first rotating rod and the second rotating rod, respectively. The positioning rod passes through the middle part of the outer surface of the corresponding third rotating rod, and the positioning rod is rotatably connected to the middle part of the third rotating rod.

[0012] A further technical solution of the present invention is that the cleaning mechanism includes an elastic telescopic rod and a fixed rod. The elastic telescopic rod and the fixed rod are both fixedly installed on the upper or lower inner surface of the second housing. The fixed rod is located in front of the elastic telescopic rod. A connecting block is provided on the rear end of the fixed rod near the steel bar body. The connecting block is fixedly connected to the fixed rod. A positioning sleeve is fixedly installed on the end of the elastic telescopic rod near the steel bar body. A positioning block is provided on the end of the connecting block away from the fixed rod. Movable brushes are provided on the isosceles trapezoidal portion of the outer surface of the positioning sleeve corresponding to the two hypotenuses.

[0013] A further technical solution of the present invention is that the movable brush is composed of a polygonal block and a J-shaped block. The outer surface of the polygonal block is inclined on the side near the positioning block, and the outer surfaces of the two polygonal blocks on the left and right sides are vertical on the side near each other. The J-shaped block is slidably connected to the isosceles trapezoidal part of the positioning sleeve, and the outer surface of the J-shaped block is arc-shaped on the side near the steel bar body. Steel wire bristles are fixedly installed on the outer surfaces of the J-shaped block and the positioning sleeve on the side near the steel bar body. Two positioning springs for assisting in fixing the position of the polygonal block are provided between the inclined side of the isosceles trapezoidal part of the inner surface of the polygonal block and the corresponding side of the positioning sleeve.

[0014] The beneficial effects are as follows: When the second movable block is pushed forward, the rear of the third rotating rod is pressed down by the first rotating rod, while the front of the third rotating rod tilts upward around the positioning rod. The second rotating rod is also pushed upward along with the third rotating rod. The greater the distance the second movable block is pushed forward, the greater the degree of downward pressure on the rear of the third rotating rod, and the higher the front of the third rotating rod tilts upward with the second rotating rod. When the second rotating rod moves upward, it pushes the positioning sleeve upward, and the lower part of the positioning block pushes the movable brushes on both sides to the sides and moves slightly upward, so that the wire brush bristles cover the surface of the rebar body, and the ends of the wire brush bristles can still contact the outer surface of the rebar body. The larger the diameter of the rebar body, the larger the gap between the three sets of wire brush bristles. When the wire brush bristles remove rust from the surface of rebar bodies of different diameters, they will also maintain a stable distance from the rebar body, preventing the roots of the wire brush bristles from bending and deforming due to long-term work.

[0015] A further technical solution of the present invention is that the feeding mechanism includes two first fixed blocks fixedly installed on the rear end of the lower surface of the top plate. The two first fixed blocks are symmetrically distributed from left to right. A tension spring is fixedly installed at the end of each of the two first fixed blocks that is close to each other. A first movable block is provided at the end of each of the two tension springs that is close to each other. The first movable block is slidably installed on the lower surface of the top plate. A first rotating shaft is rotatably installed at the rear lower end of the first movable block on the left side. Two second rotating shafts distributed front to back are rotatably installed at the lower end of the first movable block on the right side. A first pushing wheel is installed at the lower end of the second rotating shaft on the front side and at the lower end of the first rotating shaft. The two first pushing wheels are close to each other to clamp and convey the steel bar body. A first pulley is provided in the middle of the outer surface of the first rotating shaft. The first pulley is fixedly connected to the first rotating shaft. A second pulley is provided in the middle of the outer surface of each of the two second rotating shafts, and the rotation directions of the two second pulleys are opposite.

[0016] A further technical solution of the present invention is that an electric push rod is provided in the middle of the bottom of the top plate, and a push block is fixedly connected to the output end of the electric push rod. The push block is slidably installed on the bottom of the top plate, and a first drive motor is fixedly installed at the lower end of the push block. A third pulley is fixedly connected to the output end of the first drive motor. A first transmission belt is wound together between the third pulley, the first pulley, and the second pulley located on the rear side. The first drive motor can drive the first pulley and the second pulley located on the rear side to rotate continuously in the same direction through the third pulley and the first transmission belt.

[0017] The beneficial effects are: by activating the electric push rod to pull the push block backward, the positions of the first drive motor and the third pulley are changed. Since the length of the first transmission belt remains unchanged, and the two tension springs will continue to pull the first movable block and the first push wheel to both sides to keep the first transmission belt taut, the third pulley will cause the two first push wheels to move closer to each other and clamp the steel bar body during the backward pulling process, which can adapt to steel bars of different diameters.

[0018] A further technical solution of the present invention is that a rust collection box for collecting the rust discharged from the perforated mesh is detachably installed at the bottom of the second housing. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the structure of the present invention.

[0020] Figure 2 This is a cross-sectional view of the first housing in a specific embodiment of the present invention.

[0021] Figure 3 This is a schematic diagram of the pushing mechanism in a specific embodiment of the present invention.

[0022] Figure 4 This is the present invention. Figure 3 A magnified schematic diagram of the structure at point A in the middle.

[0023] Figure 5 This is a schematic diagram of the rust removal mechanism in a specific embodiment of the present invention.

[0024] Figure 6 This is the present invention. Figure 5 Enlarged schematic diagram of the structure at point B.

[0025] Figure 7 This is a cross-sectional view of the second housing in a specific embodiment of the present invention.

[0026] Figure 8 This is a schematic diagram of the clamping wheel assembly in a specific embodiment of the present invention; Figure 9 This is a schematic diagram of the cleaning mechanism in a specific embodiment of the present invention; Figure 10 This is a schematic diagram of the internal structure of the cleaning mechanism in a specific embodiment of the present invention. In the diagram: 1. Pushing mechanism; 11. First housing; 12. Top plate; 13. Receiving platform; 14. Lifting block; 15. Support block; 16. Electric push rod; 161. Pushing block; 17. Feeding mechanism; 171. First fixed block; 172. Tension spring; 173. First movable block; 174. First rotating shaft; 175. First pulley; 176. Second rotating shaft; 177. Second pulley; 178. First pushing wheel; 179. First transmission belt; 18. First drive motor; 181. Third pulley; 2. Rust removal mechanism; 21. Second housing; 22. Support leg; 23. Clamping wheel assembly; 231. Fixed sleeve; 232. Mounting block; 233. Second pushing wheel; 234. First thrust spring; 24. Hollow mesh; 25. First transmission mechanism Structure; 251. Second drive motor; 252. Fourth pulley; 253. Fifth pulley; 254. Sixth pulley; 255. Second transmission belt; 256. Second fixed block; 257. Second thrust spring; 258. Second movable block; 26. Second transmission mechanism; 262. First rotating rod; 263. Third rotating rod; 264. Positioning rod; 265. Second rotating rod; 27. Cleaning mechanism; 271. Elastic telescopic rod; 272. Positioning sleeve; 2721. Slide groove; 273. Fixed rod; 274. Connecting block; 275. Positioning block; 276. Movable brush; 2761. Polygonal block; 2762. J-shaped block; 277. Positioning spring; 278. Steel wire brush bristles; 3. Rust storage box; 4. Rebar body. Detailed Implementation

[0027] The specific embodiments of the present invention will be further described below with reference to the accompanying drawings.

[0028] like Figures 1-2 As shown, a steel bar rust removal device for easy fixing on construction sites includes a pushing mechanism 1, a rust removal mechanism 2 installed at the rear end of the pushing mechanism 1, the pushing mechanism 1 is used to transport the steel bar bodies 4 to be rusted one by one to the rust removal mechanism 2 for rust removal, and a rust collection box 3 is installed at the bottom of the rust removal mechanism 2 for collecting the rust swept on the steel bar bodies 4.

[0029] like Figures 3-4 As shown, the pushing mechanism 1 includes a first housing 11 with an open upper end. Top plates 12 are fixedly installed on the top of both the front and rear sides of the inner wall of the first housing 11. A feeding structure 17 is installed at the rear end of the first housing 11, located below the top plates 12. A receiving platform 13 is fixedly installed at the bottom of the inner wall of the first housing 11. The upper surface of the receiving platform 13 is V-shaped, and the top plate 12 is U-shaped. The left and right sides of the top plate 12 are spaced from the inner wall of the first housing 11, allowing the user to place the steel bar body 4 to be derusted onto the receiving platform 13 through the gap between the top plate 12 and the left and right side walls of the first housing 11. This allows the steel bar body 4 to slide down the V-shaped upper surface of the receiving platform 13 to the lowest point of the upper surface. The receiving platform 13 is internally equipped with… A lifting cylinder (not shown in the figure) is installed for installing the lifting block 14. The lifting block 14 is slidably installed at the lowest point of the receiving platform 13. Multiple support blocks 15 for supporting the steel bar body 4 are fixedly installed on the upper surface of the lifting block 14. When the lifting cylinder of the lifting block 14 retracts and descends to the lowest point, the support blocks 15 are lower than the upper surface of the receiving platform 13 so that the lifting block 14 can lift one steel bar body 4 at the lowest point of the upper surface of the receiving platform 13 when it rises. At this time, the remaining steel bar bodies 4 will be piled up on the left and right sides of the lifting block 14. The lifted steel bar bodies 4 can be conveyed to the rust removal mechanism 2 by the feeding mechanism 17 for rust removal. Repeated lifting and lowering of the lifting block 14 can convey the steel bar bodies 4 piled up on the receiving platform 13 to the rust removal mechanism 2 one by one for rust removal.

[0030] The feeding mechanism 17 includes two first fixed blocks 171 fixedly installed at the rear ends of the lower surface of the top plate 12. The two first fixed blocks 171 are symmetrically distributed from left to right. A tension spring 172 is fixedly installed at the end of each of the two first fixed blocks 171 that is close to each other. A first movable block 173 is provided at the end of each of the two tension springs 172 that is close to each other. The first movable block 173 is slidably installed on the lower surface of the top plate 12. The tension springs 172 on both sides will continuously apply a pulling force away from the center to the first movable block 173 on the corresponding side. A first rotating shaft 174 is rotatably installed at the rear lower end of the first movable block 173 on the left side. Two second rotating shafts 176 distributed front to back are rotatably installed at the lower end of the first movable block 173 on the right side. A first push wheel 178 is installed at the lower end of shaft 176 and the lower end of the first rotating shaft 174. The two first push wheels 178 are close to each other to clamp and transport the steel bar body 4. The first push wheel 178 is fixedly connected to the corresponding second rotating shaft 176 or first rotating shaft 174. A first pulley 175 is provided in the middle of the outer surface of the first rotating shaft 174. The first pulley 175 is fixedly connected to the first rotating shaft 174. A second pulley 177 is provided in the middle of the outer surface of the two second rotating shafts 176. The connection between the second pulley 177 and the second rotating shaft 176 is fixed. The lower part of the outer surface of the two second pulleys 177 is fixedly installed with meshing gear teeth. Therefore, the rotation directions of the two second pulleys 177 are opposite.

[0031] To adjust the distance between the two first push rollers 178 to accommodate steel bars 4 of different diameters, an electric push rod 16 is installed in the middle of the bottom of the top plate 12. A push block 161 is fixedly connected to the output end of the electric push rod 16. The push block 161 is slidably mounted on the bottom of the top plate 12 and can slide back and forth along the length of the top plate 12. A first drive motor 18 is fixedly installed at the lower end of the push block 161. A third pulley 181 is fixedly connected to the output end of the first drive motor 18. A first transmission belt 179 is wound around the third pulley 181, the first pulley 175, and the second pulley 177 located at the rear. Therefore, when the first drive motor 18 operates, it drives the first pulley 175 and the second pulley 177 located at the rear through the third pulley 181 and the first transmission belt 179. The first drive motor 18 and the third pulley 181 rotate in the same direction. The second pulley 177 on the front side rotates in the opposite direction to the first drive belt 179 on the front side. Therefore, the two first push wheels 178 rotate in opposite directions, thus providing forward thrust to the steel bar body 4 between them. At this time, the electric push rod 16 is activated to pull the push block 161 backward, changing the position of the first drive motor 18 and the third pulley 181. Since the length of the first drive belt 179 remains unchanged, and the two tension springs 172 will continue to pull the first movable block 173 and the first push wheel 178 to both sides to keep the first drive belt 179 taut, the third pulley 181 will bring the two first push wheels 178 closer to each other and clamp the steel bar body 4 during the backward pulling process to accommodate steel bar bodies 4 of different diameters.

[0032] Furthermore, in the working state, when the lifting cylinder works to raise the lifting block 14, the horizontal height of the upper end of the support block 15 is higher than the horizontal height of the lower surface of the first push wheel 178. This allows the center of the steel bar body 4 to correspond between the outer surfaces of the two first push wheels 178, and it can be centered and clamped along the contour of the first push wheel 178, improving the stability effect and facilitating the fixing of the position of the steel bar body 4.

[0033] like Figures 5-10As shown, the rust removal mechanism 2 includes a second housing 21. Support legs 22 are fixedly installed at the four corners of the bottom of the second housing 21 for support. A perforated mesh 24 is installed in the middle of the bottom wall of the second housing 21. A rust collection box 3 is detachably installed at the bottom of the second housing 21, corresponding to the position of the perforated mesh 24, so that the rust removed from the steel bar body 4 by the rust removal mechanism 2 enters the interior of the rust collection box 3 through the perforated mesh 24. Multiple sets of staggered guide wheel assemblies are provided on the left and right side walls and the upper and lower walls of the inner surface of the second housing 21. These multiple guide assemblies are used to guide the steel bar body 4 along the rust removal mechanism 2... The rust-conducting mechanism 2 is a linear rearward conveyor along its length. Each set of guide wheel assemblies includes two symmetrical clamping wheel sets 23. Each clamping wheel set 23 includes a fixed sleeve 231, which is fixedly connected to the inner wall of the second housing 21. A mounting block 232 is slidably connected to one end of the fixed sleeve 231 near the steel bar body 4. A second push wheel 233 is rotatably mounted on one end of the mounting block 232 away from the fixed sleeve 231. A first thrust spring 234 is provided on one end of the mounting block 232 away from the second push wheel 233. The first thrust spring 234 is fixedly installed between the mounting block 232 and the inner wall of the second housing 21.

[0034] The upper and lower side walls of the inner cavity of the second housing 21 are provided with a first transmission mechanism 25 at their rear ends, and a cleaning mechanism 27 is provided in the middle of the upper and lower side walls of the inner cavity of the second housing 21. A second transmission mechanism 26 is provided between the first transmission mechanism 25 and the cleaning mechanism 27 located on the same side. The first transmission mechanism 25 and the second transmission mechanism 26 can change the state of the cleaning mechanism 27 during operation.

[0035] The first transmission mechanism 25 includes a second fixed block 256 and a second drive motor 251. The second fixed block 256 is fixedly installed on the upper or lower inner surface of the second housing 21, and is located in front of the corresponding fixed sleeve 231 on the rearmost side. A second thrust spring 257 is provided at the front end of the second fixed block 256, and the elastic force of the second thrust spring 257 is less than that of the first thrust spring 234. A second movable block 258 is provided at the front end of the second thrust spring 257, and the second movable block 258 is slidably connected to the inner surface of the second housing 21. The second thrust spring 257 is fixedly installed between the second fixed block 256 and the second movable block 258. The outer surface is provided with a sixth pulley 254, which is rotatably connected to the second movable block 258. The second drive motor 251 is fixedly installed on the inner upper or lower wall of the second housing 21. The output end of the second drive motor 251 is fixedly installed with a fourth pulley 252. The fourth pulley 252 is rotatably installed on the outer surface of the corresponding fixed sleeve 231 located at the rear end. The outer surface of the mounting block 232 located at the rear end is also rotatably installed with a fifth pulley 253. The fifth pulley 253 is coaxial with the corresponding second push wheel 233. The fourth pulley 252, the fifth pulley 253, and the sixth pulley 254 are all wound with a second transmission belt 255.

[0036] When the second drive motor 251 is working, it drives the fifth pulley 253 and the sixth pulley 254 to rotate synchronously through the second transmission belt 255. This causes the second push wheel 233, which is coaxial with the fifth pulley 253, to rotate synchronously. Since the elastic force of the second push spring 257 is less than that of the first push spring 234, when the two first push wheels 178 push the steel bar body 4 to the rust removal mechanism 2, the steel bar body 4 will push away the two second push wheels 233 and the first push spring 234 on the last side. Since the length of the second transmission belt 255 remains unchanged, the second push spring 257 will push the second movable block 258 to the rear side when the first push spring 234 is pushed away. The larger the diameter of the steel bar body 4, the greater the distance that the two second push wheels 233 push to the sides, and the greater the distance that the second movable block 258 pushes forward.

[0037] It should be noted that the two clamping wheel groups 23 in the guide wheel assembly located at the rear end will serve as the power source for the rust removal mechanism 2 when working in cooperation with the first transmission mechanism 25. After the two first push wheels 178 push the steel bar body 4 into the rust removal mechanism 2, they will receive the steel bar body 4 and continue to push it forward. The clamping wheel groups 23 in the remaining guide wheel assemblies will serve as driven guide mechanisms.

[0038] The second transmission mechanism 26 includes a first rotating rod 262 and a second rotating rod 265. The first rotating rod 262 is rotatably mounted on the front end of the second movable block 258 on the corresponding side, and the second rotating rod 265 is rotatably mounted on the rear end of the positioning sleeve 272 on the corresponding side. Positioning rods 264 are fixedly installed on the upper and lower parts between the left and right side walls of the inner surface of the second housing 21. A third rotating rod 263 is provided between the first rotating rod 262 and the second rotating rod 265. The two ends of the third rotating rod 263 are rotatably connected to the first rotating rod 262 and the second rotating rod 265, respectively. The positioning rod 264 passes through the middle of the outer surface of the corresponding third rotating rod 263, and the positioning rod 264 is rotatably connected to the middle of the third rotating rod 263.

[0039] Therefore, when the second movable block 258 is pushed forward, the rear part of the third rotating rod 263 will be pressed down by the first rotating rod 262, while the front part of the third rotating rod 263 will tilt upward around the positioning rod 264. The second rotating rod 265 will also be pushed upward along with the third rotating rod 263. The greater the distance that the second movable block 258 is pushed forward, the greater the degree to which the rear part of the third rotating rod 263 is pressed down, and the higher the front part of the third rotating rod 263 tilts upward along with the second rotating rod 265.

[0040] To reduce the deformation of the wire brush after prolonged use, the cleaning mechanism 27 includes an elastic telescopic rod 271 and a fixed rod 273. Both the elastic telescopic rod 271 and the fixed rod 273 are fixedly installed on the inner upper or lower wall of the second housing 21, with the fixed rod 273 located in front of the elastic telescopic rod 271. A connecting block 274 is provided at the rear end of the fixed rod 273 near the rebar body 4, and the connecting block 274 is fixedly connected to the fixed rod 273. A positioning sleeve 272 is fixedly installed at the end of the elastic telescopic rod 271 near the rebar body 4. The end of the positioning sleeve 272 away from the elastic telescopic rod 271 is an isosceles trapezoid. The front end of the positioning sleeve 272 is provided with a groove 2721 that is adapted to the connecting block 274. The connecting block 274 passes through the groove 2721. The end of the connecting block 274 away from the fixed rod 273 is provided with a positioning block 275. The connection between the connecting block 274 and the positioning block 275 is a fixed connection. The end of the positioning block 275 near the steel bar body 4 is triangular. The isosceles trapezoidal part on the outer surface of the positioning sleeve 272 is provided with movable brushes 276 at the two hypotenuses.

[0041] The movable brush 276 is composed of a polygonal block 2761 and a J-shaped block 2762. The outer surface of the polygonal block 2761 is inclined on the side near the positioning block 275. The outer surfaces of the two polygonal blocks 2761 on the left and right sides are vertical on the side near each other. The J-shaped block 2762 is slidably connected to the isosceles trapezoidal part of the positioning sleeve 272. The outer surface of the J-shaped block 2762 is arc-shaped on the side near the rebar body 4. Steel wire bristles 278 are fixedly installed on the outer surfaces of the J-shaped block 2762 and the positioning sleeve 272 on the side near the rebar body 4. Two positioning springs 277 are provided between the inclined side of the isosceles trapezoidal part of the inner surface of the polygonal block 2761 and the corresponding side of the positioning sleeve 272 to help fix the position of the polygonal block 2761.

[0042] When the second rotating rod 265 moves upward due to the linkage principle, it will push the positioning sleeve 272 upward. The lower part of the positioning block 275 will push the movable brushes 276 on both sides to the sides. The positioning sleeve 272 will also move upward, so that the wire bristles 278 cover the surface of the rebar body 4, so that the ends of the wire bristles 278 can still contact the outer surface of the rebar body 4. The larger the diameter of the rebar body 4, the larger the gap between the three sets of wire bristles 278. The upper and lower cleaning mechanisms 27 will remove the rust from the upper and lower surfaces of the rebar body 4, respectively. It should be noted that in the initial state, the contact positions of the bristles of multiple wire bristles 278 are staggered to adapt to the increased diameter of the rebar body 4 and ensure the cleaning effect.

[0043] During use, when the electric actuator 16 is activated, it pulls the push block 161 backward, changing the position of the first drive motor 18 and the third pulley 181. Since the length of the first transmission belt 179 remains unchanged, and the two tension springs 172 will continue to pull the first movable block 173 and the first push wheel 178 to both sides to keep the first transmission belt 179 taut, the third pulley 181 will cause the two first push wheels 178 to move closer to each other and clamp the steel bar body 4 during the backward pulling process, so as to adapt to steel bar bodies 4 of different diameters. When the first drive motor 18 is working, it will drive the first pulley 175 and the second pulley 177 located on the rear side to rotate continuously in the same direction through the third pulley 181 and the first transmission belt 179. The second pulley 177 located on the front side rotates in the opposite direction to the first transmission belt 179 located on the front side. Therefore, the two first push wheels 178 will rotate in opposite directions, thereby providing a forward thrust to the steel bar body 4 between them.

[0044] When the two first push wheels 178 push the steel bar body 4 into the rust removal mechanism 2, the steel bar body 4 will push away the two second push wheels 233 and the first thrust spring 234 on the last side. Since the length of the second transmission belt 255 remains unchanged, the second thrust spring 257 will push the second movable block 258 to the rear side when the first thrust spring 234 is pushed away. The larger the diameter of the steel bar body 4, the greater the distance that the two second push wheels 233 push to the sides, and the greater the distance that the second movable block 258 pushes forward.

[0045] When the second drive motor 251 is working, it will drive the fifth pulley 253 and the sixth pulley 254 to rotate synchronously through the second transmission belt 255, so that the second push wheel 233, which is coaxial with the fifth pulley 253, will rotate synchronously. The rotation of the two second push wheels 233 will push the steel bar body 4 forward. When the second movable block 258 is pushed forward, the rear of the third rotating rod 263 is pressed down by the first rotating rod 262, while the front of the third rotating rod 263 tilts upward around the positioning rod 264. The second rotating rod 265 also moves upward along with the third rotating rod 263. The greater the distance the second movable block 258 is pushed forward, the greater the degree of downward pressure on the rear of the third rotating rod 263, and the higher the front of the third rotating rod 263 tilts upward along with the second rotating rod 265. When the second rotating rod 265 moves upward, it pushes the positioning sleeve 272 upward, while the lower part of the positioning block 275... The movable brushes 276 on both sides will be pushed to the sides and moved slightly upwards, so that the wire bristles 278 cover the surface of the rebar body 4, and the ends of the wire bristles 278 can still contact the outer surface of the rebar body 4. The larger the diameter of the rebar body 4, the larger the gap between the three sets of wire bristles 278. When the wire bristles 278 remove rust from the surface of rebar bodies 4 of different diameters, they will also maintain a stable distance from the rebar body 4 to prevent the roots of the wire bristles 278 from bending and deforming due to long-term work. The upper and lower cleaning mechanisms 27 will remove rust from the upper and lower surfaces of the rebar body 4, respectively.

[0046] In this specific embodiment, the third pulley 181 in the pushing mechanism 1 pulls backward, causing the two first pushing wheels 178 to move closer together and clamp the reinforcing bar body 4. When the two first pushing wheels 178 push the reinforcing bar body 4 into the rust removal mechanism 2, the reinforcing bar body 4 also pushes away the two second pushing wheels 233 and the first thrust spring 234 on the last side. The arrangement of multiple clamping wheel sets 23 can fix the reinforcing bar body 4 in the central position and enable the device to adapt to reinforcing bar bodies 4 of different diameters for rust removal, thus improving the applicability of the device. As the diameter of the rust-removed reinforcing bar body 4 increases, under the action of the first transmission mechanism 25 and the second transmission mechanism 26... The movable brushes 276 on both sides will be pushed apart, and the positioning sleeve 272 will also move upward, so that the wire brush bristles 278 cover the surface of the rebar body 4. The ends of the wire brush bristles 278 can still contact the outer surface of the rebar body 4. The gap between the three sets of wire brush bristles 278 will increase as the diameter of the rebar body 4 increases, so that when the wire brush bristles 278 remove rust from the surface of rebar bodies 4 of different diameters, they will also maintain a stable distance from the rebar body 4, preventing the roots of the wire brush bristles 278 from bending and deforming due to long-term work, thus improving the service life of the wire brush bristles 278 of this device, extending the continuous use time of this device, and thus improving work efficiency.

Claims

1. A steel bar rust removal device for easy fixing on construction sites, characterized in that, The device includes a pushing mechanism (1) and a rust removal mechanism (2) installed at the rear end of the pushing mechanism (1). The pushing mechanism (1) includes a first housing (11). A receiving platform (13) is fixedly installed at the bottom of the inner wall of the first housing (11). A lifting block (14) that can slide up and down is installed inside the receiving platform (13). The lifting block (14) is used to lift the steel bar body (4) placed on the receiving platform (13) one by one. A top plate (12) is fixedly installed at the top of both the front and rear ends of the first housing (11). A feeding mechanism (17) is fixedly installed at the bottom of the top plate (12). The feeding mechanism (17) is used to transport the steel bar body (4) lifted by the lifting block (14) one by one to the rust removal mechanism (2) for rust removal. The rust removal mechanism (2) includes a second housing (21). Multiple guide wheel assemblies for conveying the steel bar body (4) are fixedly installed on the top and bottom of the inner wall of the second housing (21). Each guide wheel assembly includes two mutually symmetrical clamping wheel groups (23). A first transmission mechanism (25) is provided at the front end of the top and bottom of the inner wall of the second housing (21). A cleaning mechanism (27) for removing rust from the steel bar body (4) conveyed by the first transmission mechanism (25) is provided at the middle of the top and bottom of the inner wall of the second housing (21). A second transmission mechanism (26) is provided between the first transmission mechanism (25) and the cleaning mechanism (27). The first transmission mechanism (25) can drive the second transmission mechanism (26) to change the cleaning mechanism (27) as the diameter of the steel bar body (4) changes. The cleaning mechanism (27) includes an elastic telescopic rod (271) and a fixed rod (273). The elastic telescopic rod (271) and the fixed rod (273) are both fixedly installed on the inner upper or lower wall of the second housing (21). The fixed rod (273) is located in front of the elastic telescopic rod (271). A connecting block (274) is provided on the side of the rear end of the fixed rod (273) near the steel bar body (4). The connecting block (274) is fixedly connected to the fixed rod (273). A positioning sleeve (272) is fixedly installed on the end of the elastic telescopic rod (271) near the steel bar body (4). A positioning block (275) is provided on the end of the connecting block (274) away from the fixed rod (273). Movable brushes (276) are provided on the isosceles trapezoidal part of the outer surface of the positioning sleeve (272) corresponding to the two inclined sides. The movable brush (276) is composed of a polygonal block (2761) and a J-shaped block (2762). The outer surface of the polygonal block (2761) is inclined on the side near the positioning block (275). The outer surfaces of the two polygonal blocks (2761) on the left and right sides are vertical on the side near each other. The J-shaped block (2762) is slidably connected to the isosceles trapezoidal part of the positioning sleeve (272). The outer surface of the J-shaped block (2762) is arc-shaped on the side near the steel bar body (4). Steel wire bristles (278) are fixedly installed on the outer surfaces of the J-shaped block (2762) and the positioning sleeve (272) on the side near the steel bar body (4). Two positioning springs (277) are provided between the inclined side of the isosceles trapezoidal part of the inner surface of the polygonal block (2761) and the positioning sleeve (272) on the corresponding side for assisting in fixing the position of the polygonal block (2761).

2. The steel reinforcement rust removal device for easy fixing on construction sites according to claim 1, characterized in that, The second housing (21) is fixedly installed with support legs (22) at the four corners of the bottom. The bottom wall of the second housing (21) is equipped with a perforated mesh (24) for discharging the rust that has been cleaned off the steel bar body (4).

3. The steel reinforcement rust removal device for easy fixing on construction sites according to claim 2, characterized in that, The clamping wheel assembly (23) includes a fixed sleeve (231), which is fixedly connected to the inner wall of the second housing (21). The fixed sleeve (231) is slidably connected to an installation block (232) at one end near the steel bar body (4). A second push wheel (233) is rotatably installed at one end of the installation block (232) away from the fixed sleeve (231). A first thrust spring (234) is provided at one end of the installation block (232) away from the second push wheel (233). The first thrust spring (234) is fixedly installed between the installation block (232) and the inner wall of the second housing (21).

4. A steel bar rust removal device for easy fixing on construction sites according to claim 3, characterized in that, The first transmission mechanism (25) includes a second fixed block (256) and a second drive motor (251). The second fixed block (256) is fixedly installed on the upper or lower inner surface of the second housing (21). A second thrust spring (257) is provided at the front end of the second fixed block (256), and a second movable block (258) is provided at the front end of the second thrust spring (257). The second movable block (258) is slidably connected to the inner surface of the second housing (21). The second thrust spring (257) is fixedly installed between the second fixed block (256) and the second movable block (258). A sixth pulley (254) is provided on the outer surface of the second movable block (258). The sixth pulley (254) is rotatably connected to the second movable block (258). The second drive motor (251) is fixedly installed on the second housing (21). The inner surface of the upper or lower wall of the second drive motor (251) is fixedly mounted with a fourth pulley (252). The fourth pulley (252) is rotatably mounted on the outer surface of the corresponding fixed sleeve (231) located at the rear side. The outer surface of the mounting block (232) located at the rear side is also rotatably mounted with a fifth pulley (253). The fifth pulley (253) is coaxial with the corresponding second push wheel (233). The fourth pulley (252), the fifth pulley (253), and the sixth pulley (254) are all wound with a second transmission belt (255). The second drive motor (251) can drive the fifth pulley (253) and the sixth pulley (254) to rotate synchronously through the second transmission belt (255), so that the second push wheel (233) coaxial with the fifth pulley (253) rotates synchronously.

5. A steel bar rust removal device for easy fixing on construction sites according to claim 4, characterized in that, The second transmission mechanism (26) includes a first rotating rod (262) and a second rotating rod (265). The first rotating rod (262) is rotatably mounted on the front end of the second movable block (258) on the corresponding side. The second rotating rod (265) is rotatably mounted on the rear end of the positioning sleeve (272) on the corresponding side. Positioning rods (264) are fixedly installed on the upper and lower parts between the left and right side walls of the inner surface of the second housing (21). A third rotating rod (263) is provided between the first rotating rod (262) and the second rotating rod (265). The two ends of the third rotating rod (263) are rotatably connected to the first rotating rod (262) and the second rotating rod (265) respectively. The positioning rod (264) passes through the middle part of the outer surface of the corresponding third rotating rod (263). The positioning rod (264) is rotatably connected to the middle part of the third rotating rod (263).

6. A steel bar rust removal device for easy fixing on construction sites according to claim 5, characterized in that, The feeding mechanism (17) includes two first fixing blocks (171) fixedly installed on the rear end of the lower surface of the top plate (12). The two first fixing blocks (171) are symmetrically distributed from left to right. A tension spring (172) is fixedly installed at the end of each of the two first fixing blocks (171) that is close to each other. A first movable block (173) is provided at the end of each of the two tension springs (172) that is close to each other. The first movable block (173) is slidably installed on the lower surface of the top plate (12). A first rotating shaft (174) is rotatably installed at the rear end of the lower end of the first movable block (173) on the left side. A first rotating shaft (174) is rotatably installed at the rear end of the first movable block (173) on the right side. Two second rotating shafts (176) are dynamically installed, one in front of the other. A first push wheel (178) is installed at the lower end of the second rotating shaft (176) and the lower end of the first rotating shaft (174). The two first push wheels (178) are close to each other to clamp and transport the steel bar body (4). A first pulley (175) is provided in the middle of the outer surface of the first rotating shaft (174). The first pulley (175) is fixedly connected to the first rotating shaft (174). A second pulley (177) is provided in the middle of the outer surface of the two second rotating shafts (176), and the two second pulleys (177) rotate in opposite directions.

7. A steel bar rust removal device for easy fixing on construction sites according to claim 6, characterized in that, An electric actuator (16) is provided in the middle of the bottom of the top plate (12). A push block (161) is fixedly connected to the output end of the electric actuator (16). The push block (161) is slidably installed on the bottom of the top plate (12). A first drive motor (18) is fixedly installed at the lower end of the push block (161). A third pulley (181) is fixedly connected to the output end of the first drive motor (18). A first transmission belt (179) is wound together between the third pulley (181), the first pulley (175), and the second pulley (177) located on the rear side. The first drive motor (18) can drive the first pulley (175) and the second pulley (177) located on the rear side to rotate continuously in the same direction through the third pulley (181) and the first transmission belt (179).

8. A steel bar rust removal device for easy fixing on construction sites according to claim 7, characterized in that, The bottom of the second housing (21) is detachably fitted with a rust collection box (3) for collecting the rust discharged from the perforated mesh (24).

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