Paint spraying equipment for steel structure
By designing sliding grooves and drive components within the housing, combined with a transmission system consisting of a rectangular plate and a rotating disk, the problem of blind spots in steel structure painting equipment was solved, achieving full coverage painting of the inner and outer walls of the steel pipe and ensuring the coating's durability and protective properties.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- CHINA CONSTR SECOND ENG BUREAU LTD
- Filing Date
- 2025-05-16
- Publication Date
- 2026-05-26
Smart Images

Figure CN224271643U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of steel structure technology, and in particular relates to a painting equipment for steel structures. Background Technology
[0002] Steel structure painting equipment is a professional device used to spray paint onto steel structures. It can achieve automatic or manual spraying, ensuring that the coating on the steel structure surface adheres firmly and has strong protective properties. It is widely used for corrosion protection and decoration of steel structures such as bridges and factories.
[0003] For example, Chinese patent CN222739443U discloses a painting equipment for steel structure processing, relating to the field of steel structure processing painting technology. It includes a base plate, a rotating fixing unit, a slide rail unit, and a spraying unit. Fixing frames are fixedly connected to the left and right sides of the upper end of the base plate. The rotating fixing unit includes a rotating mounting column, a sliding frame, a slider, a screw, and a motor. The upper end of the fixing frame is rotatably connected to the rotating mounting column. Four sliding frames are evenly fixedly connected to the outer side of the rotating mounting column. A slider is slidably connected to the inner side of each sliding frame. The screw passes through the sliding frame and is rotatably connected to the rotating mounting column. The screw is threadedly connected to the slider. The top end of each sliding frame is fixedly connected to the motor, and the output shaft of the motor is fixedly connected to the other end of the screw. This painting equipment for steel structure processing can spray the steel structure without dead angles from all directions and can fix steel structures of various shapes and sizes.
[0004] The aforementioned patent has the following problems:
[0005] This patent has some drawbacks in its use. For example, the aforementioned device requires a clamping plate to hold and fix the steel pipe. Because the clamping plate directly contacts and obstructs the surface of the steel pipe, the clamping contact area cannot be sprayed with paint, creating a blind spot and resulting in incomplete painting of the steel pipe. In view of this, we propose a painting device for steel structures. Utility Model Content
[0006] The purpose of this invention is to provide a painting equipment for steel structures to solve the problems mentioned in the background art.
[0007] In view of this, the present invention provides a steel structure painting equipment, including a housing, and further comprising:
[0008] A sliding groove is formed inside the housing. A sliding plate is slidably installed inside the sliding groove. A first pipe and a second pipe are fixedly installed on the sliding plate. Corrugated pipes are fixedly installed at the top of both the first pipe and the second pipe. Two fixing strips are fixedly installed at the bottom of the second pipe. A disc is fixedly installed at the bottom of the first pipe. Several nozzles are fixedly installed on the circumferential sidewall of the disc and on the side where the two fixing strips are close to each other.
[0009] A drive assembly, located within the housing, is used to drive the sliding plate to slide.
[0010] A power chamber is formed inside the housing and located below the sliding groove. A rotating disk is rotatably installed inside the power chamber. A limit groove is formed inside the rotating disk. Two rectangular plates are slidably installed inside the limit groove.
[0011] A power assembly, located on the housing, is used to drive the rotating disk to rotate and the two rectangular plates to slide.
[0012] In this technical solution, when the steel pipe needs to be painted, the steel pipe is placed directly below the disc, and the two rectangular plates are located inside the steel pipe. Through the set power component, the two rectangular plates can be driven to slide and move away from each other. When the two rectangular plates are in contact with the inner wall of the steel pipe, the steel pipe can be fixed.
[0013] The power unit can be set to drive the rotating disk to rotate slowly, and the rotating disk will drive the steel pipe to rotate slowly.
[0014] The drive assembly allows the sliding plate to slide slowly downwards, pulling the two corrugated pipes to extend. Simultaneously, the first pipe, the second pipe, and the two fixing strips all move downwards. Paint is sprayed out through one of the corrugated pipes, the second pipe, the two fixing strips, and several corresponding nozzles. The corresponding nozzles move slowly downwards, and the steel pipe rotates slowly, allowing the entire outer wall of the steel pipe to be painted. The steel pipe is then removed. Next, the above operation is used to slide the two rectangular plates away from each other. The steel pipe is then placed between the two rectangular plates, and the above operation is used to slide the two rectangular plates closer together. When both rectangular plates are in close contact with the outer wall of the steel pipe, the above operation is used to slide the sliding plate downwards. Then, paint is sprayed out through the other corrugated pipe, the second pipe, the two fixing strips, and several other nozzles. At the same time, the steel pipe rotates slowly, allowing the inner wall of the steel pipe to be painted, ensuring that both the inner and outer walls of the steel pipe are completely painted.
[0015] In the above technical solution, the driving component further includes:
[0016] The first motor is fixedly installed on the top of the housing. The output shaft of the first motor extends through the housing into the sliding groove and is fixedly installed with a threaded rod. The lower end of the threaded rod passes through the sliding plate and is threadedly connected to the sliding plate.
[0017] In this technical solution, the first motor is then started. The first motor is powered on and drives the threaded rod to rotate slowly. Under the action of the thread, the sliding plate slides slowly downward, and the sliding plate pulls the two bellows to extend.
[0018] In the above technical solution, the power component further includes:
[0019] The second motor is fixedly installed inside the power cavity and located on one side of the rotating disk. The output shaft of the second motor is fixedly installed with a gear, and several tooth blocks are fixedly installed on the circumferential side wall of the rotating disk. The gear meshes with the several tooth blocks.
[0020] In this technical solution, the second motor is started and drives the gear to rotate slowly. The gear drives the rotating disk to rotate slowly through several meshing tooth blocks, and the rotating disk drives the steel pipe to rotate slowly.
[0021] In the above technical solution, the power component further includes:
[0022] An electric telescopic rod is fixedly installed in a limiting groove. A fixing block is fixedly installed at the telescopic end of the limiting groove. Two connecting rods are rotatably installed on the fixing block, and the two connecting rods are rotatably connected to two rectangular plates respectively.
[0023] In this technical solution, when the steel pipe needs to be painted, the steel pipe is placed directly below the disc, with both rectangular plates located inside the steel pipe. Then, the electric telescopic rod is activated, which pushes the fixing block to slide towards the rectangular plates. The fixing block squeezes the two connecting rods to rotate, and the two connecting rods drive the two rectangular plates to slide and move away from each other. When both rectangular plates are in contact with the inner wall of the steel pipe, the steel pipe can be fixed.
[0024] In the above technical solution, the output shaft of the first motor is rotatably connected to the housing and the sliding groove, the threaded rod is rotatably connected to the sliding groove, the gear is rotatably connected to the power cavity, and the fixed block is slidably connected to the limiting groove.
[0025] In this technical solution, it is ensured that the output shaft of the first motor can rotate within the housing and the sliding groove, that the threaded rod can rotate within the sliding groove, that the gear can rotate within the power cavity, and that the fixed block can slide within the limiting groove.
[0026] In the above technical solution, a battery is further fixedly installed in the limiting groove and on one side of the electric telescopic rod, and the battery is electrically connected to the electric telescopic rod.
[0027] In this technical solution, a storage battery can be installed to power the electric telescopic pole, ensuring that the electric telescopic pole can be used normally.
[0028] In the above technical solution, a sealing door is rotatably installed on the front side of the housing. The sealing door is fixed to the housing by a pin, and a transparent plate and a handle are fixedly installed on the sealing door.
[0029] In this technical solution, when it is necessary to paint the steel pipe, first pull out the pin, then open the sealing door, and the steel pipe can be taken out.
[0030] The sealing door, secured by a latch, can seal the interior of the housing when closed.
[0031] In the above technical solution, the disk is further positioned between two fixed strips.
[0032] In this technical solution, it is ensured that several spray nozzles can spray paint on the outer and inner walls of the steel pipe.
[0033] The beneficial effects of this utility model are:
[0034] This steel structure painting equipment, when painting a steel pipe, places the steel pipe directly below a disc, with two rectangular plates positioned inside the pipe. A power assembly drives the two rectangular plates to slide and move away from each other. When both rectangular plates are in contact with the inner wall of the steel pipe, the pipe is fixed in place. The power assembly then drives a rotating disc to rotate slowly, causing the steel pipe to rotate slowly. A drive assembly drives a sliding plate to slide slowly downwards. Paint is sprayed through one corrugated pipe, a second pipe, two fixing strips, and several corresponding nozzles, completely painting the outer wall of the steel pipe. The above operation causes the two rectangular plates to slide and move closer together. When both rectangular plates are in close contact with the outer wall of the steel pipe, the inner wall of the pipe is painted, ensuring that both the inner and outer walls of the steel pipe are completely painted. Attached Figure Description
[0035] Figure 1 This is a schematic diagram of the overall structure of this utility model;
[0036] Figure 2 This is a schematic diagram of the cross-sectional structure of the shell of this utility model;
[0037] Figure 3 This is the utility model Figure 2 Enlarged structural diagram at point A;
[0038] Figure 4 This is a schematic diagram of the cross-sectional structure of the rotating disk of this utility model;
[0039] Figure 5 This is a schematic diagram of the fixed block area structure of this utility model;
[0040] Figure 6 This is a schematic diagram of the partial explosion structure of this utility model.
[0041] The markings in the diagram are as follows:
[0042] 1. Housing; 2. Sliding groove; 3. Sliding plate; 4. First pipe; 5. Disc; 6. Second pipe; 7. Fixing strip; 8. Nozzle; 9. Corrugated pipe; 10. Rotating disc; 11. Limiting groove; 12. Rectangular plate; 13. First motor; 14. Threaded rod; 15. Power chamber; 16. Second motor; 17. Gear; 18. Gear block; 19. Electric telescopic rod; 20. Fixing block; 21. Connecting rod; 22. Battery; 23. Sealing door; 24. Transparent plate; 25. Handle. Detailed Implementation
[0043] The following is in conjunction with the appendix Figure 1 - Figure 6 This application will be described in further detail.
[0044] In this application, the terms "upper," "lower," "left," "right," "front," "rear," "top," "bottom," "inner," "outer," "middle," "vertical," and "horizontal," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. These terms are primarily for the purpose of better describing this application and its embodiments, and are not intended to limit the indicated device, element, or component to having a specific orientation, or to be constructed and operated in a specific orientation.
[0045] Example 1: This example provides a steel structure painting equipment, including a housing 1, and further including:
[0046] The sliding groove 2 is opened inside the housing 1. A sliding plate 3 is slidably installed inside the sliding groove 2. A first pipe 4 and a second pipe 6 are fixedly installed on the sliding plate 3. Corrugated pipes 9 are fixedly installed at the top of the first pipe 4 and the second pipe 6. Two fixing strips 7 are fixedly installed at the bottom of the second pipe 6. A disc 5 is fixedly installed at the bottom of the first pipe 4. Several nozzles 8 are fixedly installed on the circumferential side wall of the disc 5 and on the side where the two fixing strips 7 are close to each other.
[0047] A drive assembly is located inside the housing 1 and is used to drive the sliding plate 3 to slide.
[0048] The power cavity 15 is opened inside the housing 1 and located below the sliding groove 2. A rotating disk 10 is rotatably installed inside the power cavity 15. A limiting groove 11 is opened inside the rotating disk 10. Two rectangular plates 12 are slidably installed inside the limiting groove 11.
[0049] The power assembly is located on the housing 1 and is used to drive the rotating disk 10 to rotate and the two rectangular plates 12 to slide.
[0050] When the steel pipe needs to be painted, the steel pipe is placed directly below the disc 5, and the two rectangular plates 12 are located inside the steel pipe. Through the set power component, the two rectangular plates 12 can be driven to slide and move away from each other. When the two rectangular plates 12 are in contact with the inner wall of the steel pipe, the steel pipe can be fixed.
[0051] The power component can drive the rotating disk 10 to rotate slowly, and the rotating disk 10 drives the steel pipe to rotate slowly.
[0052] The drive assembly allows the sliding plate 3 to slide slowly downwards, pulling the two corrugated pipes 9 to extend. Simultaneously, the first pipe 4, the second pipe 6, and the two fixing strips 7 all move downwards. Paint is sprayed out through one of the corrugated pipes 9, the second pipe 6, the two fixing strips 7, and several corresponding nozzles 8. The corresponding nozzles 8 move slowly downwards, and the steel pipe rotates slowly, allowing the entire outer wall of the steel pipe to be painted. The steel pipe is then removed. Next, the above operation causes the two rectangular plates 12 to slide and move away from each other. The steel pipe is then placed between the two rectangular plates 12. The above operation causes the two rectangular plates 12 to slide and move closer to each other. When both rectangular plates 12 are in close contact with the outer wall of the steel pipe, the above operation causes the sliding plate 3 to slide downwards. Subsequently, paint is sprayed out through the other corrugated pipe 9, the second pipe 6, the two fixing strips 7, and several other nozzles 8. At the same time, the steel pipe rotates slowly, allowing the inner wall of the steel pipe to be painted, ensuring that both the inner and outer walls of the steel pipe can be completely painted.
[0053] In this embodiment, the driving component includes:
[0054] The first motor 13 is fixedly installed on the top of the housing 1. The output shaft of the first motor 13 extends through the housing 1 into the sliding groove 2 and is fixedly installed with a threaded rod 14. The lower end of the threaded rod 14 passes through the sliding plate 3 and is threadedly connected to the sliding plate 3.
[0055] Then, the first motor 13 is started. The first motor 13 is powered on and drives the threaded rod 14 to rotate slowly. Under the action of the thread, the sliding plate 3 slides down slowly, and the sliding plate 3 pulls the two bellows 9 to extend.
[0056] In this embodiment, the power assembly includes:
[0057] The second motor 16 is fixedly installed in the power cavity 15 and located on one side of the rotating disk 10. The output shaft of the second motor 16 is fixedly installed with a gear 17. Several tooth blocks 18 are fixedly installed on the circumferential side wall of the rotating disk 10. The gear 17 meshes with the several tooth blocks 18.
[0058] The second motor 16 is started and drives the gear 17 to rotate slowly. The gear 17 drives the rotating disk 10 to rotate slowly through several tooth blocks 18 meshing with it. The rotating disk 10 drives the steel pipe to rotate slowly.
[0059] In this embodiment, the power assembly further includes:
[0060] An electric telescopic rod 19 is fixedly installed in a limiting groove 11. A fixing block 20 is fixedly installed at the telescopic end of the limiting groove 11. Two connecting rods 21 are rotatably installed on the fixing block 20. The two connecting rods 21 are rotatably connected to two rectangular plates 12 respectively.
[0061] When the steel pipe needs to be painted, the steel pipe is placed directly below the disc 5, with both rectangular plates 12 located inside the steel pipe. Then, the electric telescopic rod 19 is activated, which pushes the fixing block 20 to slide towards the rectangular plate 12. The fixing block 20 presses the two connecting rods 21 to rotate, and the two connecting rods 21 respectively drive the two rectangular plates 12 to slide and move away from each other. When both rectangular plates 12 are in contact with the inner wall of the steel pipe, the steel pipe can be fixed.
[0062] Example 2: This example provides a painting equipment for steel structures, which, in addition to the technical solutions of the above examples, also has the following technical features.
[0063] In this embodiment, the output shaft of the first motor 13 is rotatably connected to the housing 1 and the sliding groove 2, the threaded rod 14 is rotatably connected to the sliding groove 2, the gear 17 is rotatably connected to the power chamber 15, and the fixed block 20 is slidably connected to the limiting groove 11.
[0064] Specifically, it ensures that the output shaft of the first motor 13 can rotate within the housing 1 and the sliding groove 2, that the threaded rod 14 can rotate within the sliding groove 2, that the gear 17 can rotate within the power chamber 15, and that the fixed block 20 can slide within the limiting groove 11.
[0065] Example 3: This example provides a painting equipment for steel structures, which, in addition to the technical solutions of the above examples, also has the following technical features.
[0066] In this embodiment, a battery 22 is fixedly installed in the limiting groove 11 and on one side of the electric telescopic rod 19, and the battery 22 is electrically connected to the electric telescopic rod 19.
[0067] The battery 22 provides power to the electric telescopic pole 19, ensuring that the electric telescopic pole 19 can be used normally.
[0068] Example 4: This example provides a painting equipment for steel structures, which, in addition to the technical solutions of the above examples, also has the following technical features.
[0069] In this embodiment, a sealing door 23 is rotatably installed on the front side of the housing 1. The sealing door 23 is fixed to the housing 1 by a pin. A transparent plate 24 and a handle 25 are fixedly installed on the sealing door 23.
[0070] When it is necessary to paint the steel pipe, first pull out the pin, then open the sealing door 23 to take out the steel pipe.
[0071] The sealing door 23 is closed and fixed by a pin, which can seal the inside of the housing 1.
[0072] Example 5: This example provides a painting equipment for steel structures, which, in addition to the technical solutions of the above examples, also has the following technical features.
[0073] In this embodiment, the disk 5 is located between two fixed strips 7.
[0074] This ensures that several nozzles 8 can spray paint on the outer and inner walls of the steel pipe.
[0075] Working principle: When it is necessary to spray paint the steel pipe, first pull out the pin, then open the sealing door 23, and then place the steel pipe directly below the disc 5. At the same time, both rectangular plates 12 are located inside the steel pipe. Then, start the electric telescopic rod 19. The electric telescopic rod 19 pushes the fixing block 20 to slide towards the rectangular plate 12. The fixing block 20 squeezes the two connecting rods 21 to rotate. The two connecting rods 21 respectively drive the two rectangular plates 12 to slide and move away from each other. When both rectangular plates 12 are in contact with the inner wall of the steel pipe, the steel pipe can be fixed. Then close the sealing door 23. The sealing door 23 is fixed by the pin, which can seal the inside of the housing 1.
[0076] Then the second motor 16 is started and drives the gear 17 to rotate slowly. The gear 17 drives the rotating disk 10 to rotate slowly through several tooth blocks 18 meshing with it. The rotating disk 10 drives the steel pipe to rotate slowly.
[0077] Then, the first motor 13 is started. The first motor 13 is powered on and drives the threaded rod 14 to rotate slowly. Under the action of the thread, the sliding plate 3 slides slowly downward. The sliding plate 3 pulls the two corrugated pipes 9 to extend. At the same time, the first pipe 4, the second pipe 6, and the two fixing bars 7 all move downward. The paint is sprayed out through one of the corrugated pipes 9, the second pipe 6, the two fixing bars 7, and several corresponding nozzles 8. The several corresponding nozzles 8 move downward slowly, and the steel pipe rotates slowly, so that the outer wall of the steel pipe can be completely painted. Then, the steel pipe is taken out. Then, through the above operation, the two rectangular plates 12 are slid and moved away from each other. Then, the steel pipe is placed between the two rectangular plates 12. Through the above operation, the two rectangular plates 12 are slid and moved closer to each other. When the two rectangular plates 12 are in close contact with the outer wall of the steel pipe, through the above operation, the sliding plate 3 is slid downward. Then, the paint is sprayed out through the other corrugated pipe 9, the second pipe 6, the two fixing bars 7, and several other nozzles 8. At the same time, the steel pipe rotates slowly, so that the inner wall of the steel pipe can be painted, ensuring that both the inner and outer walls of the steel pipe can be completely painted.
[0078] The embodiments of this application have been described above with reference to the accompanying drawings. Unless otherwise specified, the embodiments and features in the embodiments of this application can be combined with each other. This application is not limited to the specific embodiments described above. The specific embodiments described above are merely illustrative and not restrictive. Those skilled in the art can make many other forms under the guidance of this application without departing from the spirit and scope of the claims, and all of these forms are within the protection scope of this application.
Claims
1. A paint spraying apparatus for steel structures comprising a housing (1), characterized in that, Also includes: A sliding groove (2) is formed inside the housing (1). A sliding plate (3) is slidably installed inside the sliding groove (2). A first pipe (4) and a second pipe (6) are fixedly installed on the sliding plate (3). A corrugated pipe (9) is fixedly installed at the top of both the first pipe (4) and the second pipe (6). Two fixing strips (7) are fixedly installed at the bottom of the second pipe (6). A disc (5) is fixedly installed at the bottom of the first pipe (4). Several nozzles (8) are fixedly installed on the circumferential sidewall of the disc (5) and on the side where the two fixing strips (7) are close to each other. A drive assembly located inside the housing (1) and used to drive the sliding plate (3) to slide; A power chamber (15) is opened inside the housing (1) and located below the sliding groove (2). A rotating disk (10) is rotatably installed inside the power chamber (15). A limiting groove (11) is opened inside the rotating disk (10). Two rectangular plates (12) are slidably installed inside the limiting groove (11). A power assembly located on the housing (1) is used to drive the rotating disk (10) to rotate and the two rectangular plates (12) to slide.
2. A paint spraying apparatus for steel structures according to claim 1, characterized in that, The driving component includes: The first motor (13) is fixedly installed on the top of the housing (1). The output shaft of the first motor (13) extends through the housing (1) into the sliding groove (2) and is fixedly installed with a threaded rod (14). The lower end of the threaded rod (14) passes through the sliding plate (3) and is threadedly connected to the sliding plate (3).
3. The steel structure painting equipment according to claim 2, characterized in that, The power assembly includes: The second motor (16) is fixedly installed in the power cavity (15) and located on one side of the rotating disk (10). The output shaft of the second motor (16) is fixedly installed with a gear (17). Several tooth blocks (18) are fixedly installed on the circumferential side wall of the rotating disk (10). The gear (17) meshes with the several tooth blocks (18).
4. The steel structure painting equipment according to claim 3, characterized in that, The power assembly also includes: An electric telescopic rod (19) is fixedly installed in a limiting groove (11). A fixing block (20) is fixedly installed at the telescopic end of the limiting groove (11). Two connecting rods (21) are rotatably installed on the fixing block (20). The two connecting rods (21) are rotatably connected to two rectangular plates (12) respectively.
5. A steel structure painting equipment according to claim 4, characterized in that, The output shaft of the first motor (13) is rotatably connected to the housing (1) and the sliding groove (2), the threaded rod (14) is rotatably connected to the sliding groove (2), the gear (17) is rotatably connected to the power chamber (15), and the fixed block (20) is slidably connected to the limiting groove (11).
6. A steel structure painting equipment according to claim 4, characterized in that, A battery (22) is fixedly installed in the limiting groove (11) and on one side of the electric telescopic rod (19), and the battery (22) is electrically connected to the electric telescopic rod (19).
7. A steel structure painting equipment according to claim 1, characterized in that, A sealing door (23) is rotatably mounted on the front side of the housing (1). The sealing door (23) is fixed to the housing (1) by a pin. A transparent plate (24) and a handle (25) are fixedly mounted on the sealing door (23).
8. A steel structure painting equipment according to claim 1, characterized in that, The disk (5) is located between two fixed bars (7).