Steel pipe spraying device for building construction

Abstract

The invention belongs to the field of spraying, and relates to a steel pipe spraying device for building construction, which can realize quick double-color spraying on the surface of a steel pipe of a scaffold. According to the technical scheme, the device comprises a supporting structure, a sliding structure, a spraying structure, a rolling structure, a power distribution system and an air drying system; a sliding structure, a spraying structure, a rolling structure, a power distribution system and an air drying system are installed on the supporting structure in a connected mode, the sliding structure is connected with the spraying structure, the spraying structure is used for conducting double-bin spraying on the steel pipe, and the rolling structure is used for driving the steel pipe to operate. And the air drying system is arranged above the sliding structure, and the air drying system is configured to blow air to the steel pipe on the sliding structure and is used for rapidly air-drying paint on the surface of the steel pipe. And the power distribution system is electrically connected with the sliding structure, the spraying structure, the rolling structure and the air drying system.

Description

Technical Field

[0001] The invention belongs to the field of spraying and relates to a steel pipe spraying device for building construction. Background Art

[0002] In the field of construction, scaffolding protection systems still mostly use steel pipe fasteners. In order to play a role in beauty and warning, steel pipes are generally sprayed with two paint colors alternately before use. Traditional steel pipe spraying methods generally use manual brushing or spraying, which has many disadvantages and problems such as uneven spraying thickness, mixing of the same paint colors, paint volatilization causing great environmental pollution, large paint loss, and low construction efficiency. Summary of the invention

[0003] In order to overcome the defects in the above-mentioned related technologies, the present invention proposes a steel pipe spraying device for construction, which can realize rapid two-color spraying on the surface of the steel pipe of the scaffolding.

[0004] In order to achieve the above technical objectives, the present invention provides a steel pipe spraying device for construction. The steel pipe spraying device for construction includes: a supporting structure, a sliding structure, a spraying structure, a rolling structure, a power distribution system and an air-drying system; the supporting structure is installed and connected with a sliding structure, a spraying structure, a rolling structure, a power distribution system and an air-drying system, the sliding structure is connected to the spraying structure, the spraying structure is used to spray the steel pipe with two chambers, and the rolling structure is used to drive the steel pipe to run; the air-drying system is arranged above the sliding structure, and the air-drying system is configured to blow air to the steel pipe on the sliding structure, so as to quickly air-dry the paint on the surface of the steel pipe. The power distribution system is electrically connected to the sliding structure, the spraying structure, the rolling structure and the air-drying system.

[0005] Preferably, the support structure comprises: a support frame, an axle, a steel wheel and a lifting ring; the support frame is a square frame structure, a plurality of axles are arranged at the lower part of the support frame, and a steel wheel is arranged at each end of each axle, and a plurality of lifting rings are arranged at the upper part of the support frame.

[0006] Preferably, the sliding structure comprises: a track and a limit stopper, the track comprises two C-shaped steel rods, and a C-shaped steel rod is fixed to the upper part of each side of the support frame. Two limit stops are arranged on the C-shaped steel rod along its extension direction, and the two limit stops are used to limit the spraying structure from sliding back and forth along the C-shaped steel rod within its range.

[0007] Preferably, the spraying structure includes: a spraying wheel axle, a sliding wheel, a spraying bin, a movable flap, a double bin partition, a steel pipe hole, a nozzle 1, a nozzle 2, a spraying pipe 1, a spraying pipe 2, a paint container 1, a paint container 2, an air compressor and a spraying control box.

[0008] The spraying bin is a square box body, and a double bin partition is fixed inside the spraying bin, and the double bin partition divides the spraying bin into two spraying chambers. Steel pipe holes are provided on the spraying bin and the double bin partition, and multiple steel pipe holes have a common center line. At least one nozzle is provided in each spraying chamber: Nozzle 1 is provided in one spraying chamber, and Nozzle 2 is provided in the other spraying chamber.

[0009] A bracket is fixed below the spraying chamber, and at least two spraying wheel axles are arranged on the bracket. A sliding wheel is arranged at both ends of each spraying wheel axle, and the sliding wheels are correspondingly arranged on the C-shaped steel rod.

[0010] Two paint containers, an air compressor and a spray control box are provided on one side of the spraying chamber; the two paint containers include: paint container 1 and paint container 2; the paint container 1 and paint container 2 are respectively connected to nozzle 1 and nozzle 2 in a one-to-one correspondence, and the pipeline between the paint container 1 and the nozzle 1 is connected to the exhaust port of the air compressor, and the pipeline between the paint container 2 and the nozzle 2 is connected to the exhaust port of the air compressor. A first solenoid valve is provided on the pipeline between the paint container 1 and the nozzle 1, and a second solenoid valve is provided on the pipeline between the paint container 2 and the nozzle 2, and the first solenoid valve and the second solenoid valve are both electrically connected to the spray control box.

[0011] Preferably, the rolling structure comprises: a bracket fixing rod, a fixed bracket, a movable bracket, a motor, a clamping shaft, a transmission belt and a conical fixing clamp. The bracket fixing rod comprises at least one straight rod, and the straight rod is fixed below the support frame.

[0012] The fixed bracket is a rod as a whole, and the fixed bracket is arranged between the spray chamber and the paint container, and is fixedly connected to the bracket fixing rod. A conical fixing card with an upward opening is arranged on the upper end of the fixed bracket, and the conical fixing card rotates around its center line relative to the fixed bracket.

[0013] The movable bracket is arranged at one end of the support frame away from the fixed bracket, the movable bracket is fixed on the bracket fixing rod, and a clamping shaft with an upward opening is arranged on the upper end of the movable bracket, and the clamping shaft rotates around its center line relative to the movable bracket.

[0014] A motor is also fixed on the bracket fixing rod on the side of the movable bracket away from the fixed bracket, and the motor and the clamping shaft are driven by a belt.

[0015] Preferably, the air drying system comprises: a centrifugal fan, a control cabinet, an air duct, an air drying rack and exhaust holes. The air drying rack is arranged along the extension direction of the support frame and is relatively fixed to the support frame. A plurality of exhaust holes are fixed on the air drying rack, and the plurality of exhaust holes face the upper part of the support frame between the fixed support and the movable support. The plurality of exhaust holes are connected to the centrifugal fan through the air duct.

[0016] The beneficial effects of the present invention are: The present invention solves many shortcomings and problems of traditional spraying by adopting the setting of sliding spraying double chamber. First, the setting of closed spraying in the spraying chamber avoids the damage to human health and air pollution caused by paint volatilization, which plays a positive role in labor protection and green environmental protection operations; second, the setting of double chamber partitions and double spraying systems solves the demand for two-color spraying of steel pipes, and realizes the dual guarantee of efficiency and quality; third, the use of a spraying chamber sliding device realizes the efficiency and accuracy of steel pipe spraying. The device of the present invention as a whole realizes the improvement of multiple indicators such as spraying quality, green environmental protection operations, and labor protection.

[0017] The present invention adopts the design concept of rolling structure, drives the rotating shaft through the transmission belt and the motor to realize the rotation and rolling of the steel pipe, utilizes the steel pipe to be evenly sprayed during the rotation process, improves the spraying quality and efficiency, and reduces the spraying cost.

[0018] The present invention successfully solves the problem that after traditional steel pipes are sprayed with paint, they can only be dried under natural conditions, which limits the rapid use of the steel pipes. The air drying system is equipped with a series of settings such as air compressors, control cabinets, air ducts, and exhaust holes. The air is quickly discharged through the exhaust holes and then blown onto the steel pipes sprayed with paint, so that the paint can be quickly dried, which improves the use efficiency and the quality of the finished product. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the technical solutions in the embodiments of the present invention or related technologies, the drawings required for use in the embodiments or related technical descriptions are briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0020] Figure 1 A perspective view of the present invention; Figure 2 It is a front view of the present invention; Figure 3 It is a schematic diagram of the support structure of the present invention; Figure 4 It is a schematic diagram of the sliding structure of the present invention; Figure 5It is a schematic diagram of the spraying structure of the present invention; Figure 6 It is a schematic diagram of the rolling structure of the present invention; Figure 7 is a schematic diagram of a power distribution system of the present invention; Figure 8 Schematic diagram of the air-drying system of the present invention.

[0021] In the figure: 1. Support structure; 101. Support frame; 102. Axle; 103. Steel wheel; 104. Lifting ring; 2. Sliding structure; 201 track; 202. Limit block; 3. Spraying structure; 301. Axle; 302. Sliding wheel; 303. Spraying chamber; 304. Movable flap; 305. Double chamber partition; 306. Steel pipe hole; 307. Nozzle 1; 308. Nozzle 2; 309. Spraying pipe 1; 310. Spraying pipe 2; 311. Paint container 1; 312. Paint container 2; 313. Air Compressor; 314, spray control box; 4, rolling structure; 401, bracket fixing rod; 402, fixed bracket; 403, movable bracket; 404, motor; 405, rotating shaft; 406, transmission belt; 407, conical fixing card; 408, steel pipe; 5, power distribution system; 501, power distribution control cabinet; 502, line trough; 503, electric control line; 504, control handle; 6, air drying system; 601, air compressor; 602, control cabinet; 603, air duct; 604, bracket; 605, exhaust hole. DETAILED DESCRIPTION

[0022] In order to make the above-mentioned purposes, features and advantages of the present invention more obvious and easy to understand, the technical scheme in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work belong to the scope of protection of the present invention.

[0023] In the description of the present invention, it should be understood that the terms "center", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship are based on the orientation or position relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0024] The terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the features. In the description of the present invention, unless otherwise specified, "plurality" means two or more.

[0025] like Figures 1 to 4 As shown, some embodiments of the present invention provide a steel pipe spraying device for construction. The steel pipe spraying device for construction includes: a supporting structure 1, a sliding structure 2, a spraying structure 3, a rolling structure 4, a power distribution system 5 and an air-drying system 6; the supporting structure 1 is installed and connected with a sliding structure 2, a spraying structure 3, a rolling structure 4, a power distribution system 5 and an air-drying system 6, the sliding structure 2 is connected to the spraying structure 3, the spraying structure 3 is used to spray the steel pipe with two chambers, and the rolling structure 4 is used to drive the steel pipe to run; the air-drying system 6 is arranged above the sliding structure 2, and the air-drying system 6 is configured to blow air to the steel pipe on the sliding structure 2, so as to quickly air-dry the paint on the surface of the steel pipe. The power distribution system 5 is electrically connected to the sliding structure 2, the spraying structure 3, the rolling structure 4 and the air-drying system 6.

[0026] In some examples, a steel pipe spraying device for construction includes: a support structure 1, a sliding structure 2, a spraying structure 3, a rolling structure 4, a power distribution system 5 and an air drying system 6. The support structure 1 is a square frame structure, and a plurality of rollers are arranged at the lower end of the support structure 1 for easy transfer. A part of the spraying structure 3 is fixed at one end of the upper end of the support structure 1, and a sliding structure 2 and a rolling structure 4 are also fixed at the upper end of the support structure 1. The other part of the spraying structure 3 is movably arranged on the sliding structure 2. The other part of the spraying structure 3 can realize the painting operation on the steel pipe on the rolling structure 4 during the reciprocating operation of the sliding structure 2, and the rolling structure 4 drives the steel pipe to rotate so that the paint can be evenly sprayed.

[0027] The air drying system can blow air on the painted steel pipe to speed up the solidification of the paint.

[0028] In some embodiments, the support structure 1 includes: a support frame 101, an axle 102, a steel wheel 103 and a lifting ring 104; the support frame 101 is a square frame structure, multiple axles 102 are arranged at the lower part of the support frame 101, and a steel wheel 103 is arranged at both ends of each axle 102, and multiple lifting rings 104 are arranged on the upper part of the support frame 101.

[0029] In some examples, the support frame 101 is welded with steel and riveted to the steel with iron sheets. The wheel axle 102 connects the support frame 101 and is equipped with steel wheels 103, so that the whole device can be moved in a small range. Six lifting rings 104 are welded on the support frame to facilitate the lifting and movement of the whole device.

[0030] In some embodiments, the sliding structure 2 includes: a track 201 and a limit stopper 202, the track 201 includes two C-shaped steel rods, and a C-shaped steel rod is fixed to the upper part of each side of the support frame 101. Two limit stops 202 are arranged on the C-shaped steel rod along its extension direction, and the two limit stops 202 are used to limit the spraying structure 3 to slide back and forth along the C-shaped steel rod within its range.

[0031] In some examples, the middle groove of the C-shaped steel bar is used as a sliding track for the spray structure 3, and the C-shaped steel bar is welded to the support structure 1. A limit block 202 is provided at each end of the C-shaped steel bar, and the limit block 202 can be a protruding block fixed in the middle groove of the C-shaped steel bar, which can prevent the other part of the spray structure 3 from sliding off the C-shaped steel bar.

[0032] In some embodiments, the spraying structure 3 includes: a spraying wheel axle 301, a sliding wheel 302, a spraying bin 303, a movable flap 304, a double bin partition 305, a steel pipe hole 306, a nozzle 1 307, a nozzle 2 308, a spraying pipe 1 309, a spraying pipe 2 310, a paint container 1 311, a paint container 2 312, an air compressor 313 and a spraying control box 314.

[0033] The spray chamber 303 is a square box body, and a double chamber partition 305 is fixed inside the spray chamber 303. The double chamber partition 305 divides the spray chamber 303 into two spray chambers. The spray chamber 303 and the double chamber partition 305 are both provided with steel pipe holes 306, and a plurality of the steel pipe holes 306 have a common center line. At least one nozzle is provided in each spray chamber: one of the spray chambers is provided with nozzle one 307, and the other spray chamber is provided with nozzle two 308.

[0034] A bracket is fixed below the spray chamber 303 , and at least two spray wheel axles 301 are arranged on the bracket. A sliding wheel 302 is arranged at both ends of each spray wheel axle 301 , and the sliding wheels are correspondingly arranged on the C-shaped steel rod.

[0035] Two paint containers, an air compressor 313 and a spray control box 314 are arranged on one side of the spray chamber 303; the two paint containers include: a paint container 1 311 and a paint container 2 312; the paint container 1 311 and the paint container 2 312 are connected to the nozzle 1 307 and the nozzle 2 308 in a one-to-one correspondence, respectively, and the pipeline between the paint container 1 311 and the nozzle 1 307 is connected to the exhaust port of the air compressor 313, and the pipeline between the paint container 2 312 and the nozzle 2 308 is connected to the exhaust port of the air compressor 313. A first solenoid valve is arranged on the pipeline between the paint container 1 311 and the nozzle 1 307, and a second solenoid valve is arranged on the pipeline between the paint container 2 312 and the nozzle 2 308, and the first solenoid valve and the second solenoid valve are both electrically connected to the spray control box 314.

[0036] In some examples, the spraying structure 3 is composed of a wheel axle 301, a sliding wheel 302, a spraying chamber 303, a movable flap 304, a double chamber partition 305, a steel pipe hole 306, a nozzle 1 307, a nozzle 2 308, a spraying pipe 1 309, a spraying pipe 2 310, a paint container 1 311, a paint container 2 312, an air compressor 313, and a spraying control box 314. The spraying chamber 303 is made of thin steel plate welding, with a wheel axle 301 and a sliding wheel 302 installed at the bottom, and the movement of the spraying chamber 303 in the track achieves the goal of rapid segmented spraying of the steel pipe. In order to achieve effective spraying of two kinds of paints in the spraying chamber 303 at the same time, firstly, a double chamber partition 304 is set in the middle of the spraying chamber to achieve the purpose of spraying in separate chambers; secondly, a dual-channel spraying system with two sets of nozzles, paint containers and spraying pipes is adopted. The first-channel spraying system is a spraying control box 314 connected to a paint container 1 311, a spraying pipe 1 309, and a nozzle 1 307, and the second-channel spraying system is a spraying control box 314 connected to a paint container 2 312, a spraying pipe 2 310, and a nozzle 2 308. The spraying chamber 303 and the double chamber partition 305 are centrally opened, and the steel pipe is perforated to achieve the spraying of the steel pipe by the nozzle. The spraying chamber 303 is provided with a movable flap 304 that can be opened and closed, which is convenient for the closed spraying of the steel pipe and the maintenance of the device in the spraying chamber. At the same time, a handle is provided on the movable flap 304 to facilitate the opening and closing of the movable flap 304. The spraying system is controlled by the spraying control box 314 to realize conversion and operation. The air compressor 313 is installed on the supporting structure 1 and connected to the spraying control box 314 pipeline to provide air pressure. The steel pipe performs closed spraying of paint in the spraying chamber 303, which avoids the damage to human health and air pollution caused by the volatilization of paint, and plays a positive role in labor protection and green environmental protection operations.

[0037] The spray chamber 303 is provided with a driving motor, which can be a stepping motor, and the output shaft of the driving motor is connected to the sliding wheel 302 to enable the spray chamber 303 to reciprocate on the track 201. In addition, the nozzle 1 307 and the nozzle 2 308 inside the spray chamber 303 can be connected to the paint container 1 311 and the paint container 2 312 through a hose.

[0038] The driving motor is also electrically connected to the spray control box 314, that is, at different positions, the spray control box 314 controls the first solenoid valve or the second solenoid valve to open, so that the corresponding position of the steel pipe is sprayed with paint of the corresponding color.

[0039] In some embodiments, the rolling structure 4 includes: a bracket fixing rod 401, a fixed bracket 402, a movable bracket 403, a motor 404, a clamping shaft 405, a transmission belt 406 and a conical fixing clamp 407. The bracket fixing rod 401 includes at least one straight rod, and the straight rod is fixed below the support frame 101.

[0040] The fixed bracket 402 is a rod as a whole, and is arranged between the spray chamber 303 and the paint container, and is fixedly connected to the bracket fixing rod 401. A conical fixing card with an opening upward is arranged on the upper end of the fixed bracket 402, and the conical fixing card rotates around its center line relative to the fixed bracket 402.

[0041] The movable bracket 403 is arranged at one end of the support frame 101 away from the fixed bracket 402. The movable bracket 403 is fixed on the bracket fixing rod 401. The upper end of the movable bracket 403 is provided with a clamping shaft 405 opening upward. The clamping shaft 405 rotates around its center line relative to the movable bracket 403.

[0042] A motor 404 is also fixed on the support fixing rod 401 on the side of the movable support 403 away from the fixed support 402 , and a belt is used to drive the motor 404 and the clamping shaft 405 .

[0043] In some examples, the rolling structure 4 mainly plays a role in supporting and rotating the steel pipe 408, and utilizes the steel pipe 408 to spray uniformly during the rotation process, thereby improving the spraying quality and efficiency. The rolling structure is composed of a bracket fixing rod 401, a fixed bracket 402, a movable bracket 403, a motor 404, a clamping shaft 405, a transmission belt 406, and a conical fixed card 407. The steel pipe 408 passes through the spraying chamber 303, one end is placed on the fixed bracket 402, and the other end is placed on the movable bracket 403. The movable bracket can be adjusted according to the length of the steel pipe. The position installed on the bracket fixing rod 401 can be adjusted and effectively fixed. The steel pipe rolling system mainly drives the clamping shaft 405 to rotate through the transmission belt 406 and the motor 404 to realize the rotation and rolling of the steel pipe 408. The gap between the shaft 404 and the steel pipe 408 is plugged in by the conical fixed card 407 to achieve connection and fixation, so that the shaft 404 drives the steel pipe 408 to rotate. The motor 404 is connected to the power distribution system 5 via a circuit to realize the circuit control function.

[0044] The conical fixing card 407 includes two annular parts with different diameters. A plurality of connecting rods are fixed between the two annular parts. The conical fixing card also includes a rotating shaft, which is a rod and is coaxially fixedly connected to the annular parts. The rotating shaft is fixedly connected to the upper end of the fixing bracket 402.

[0045] The structure of the clamping shaft 405 is basically the same as that of the conical fixing clamp 407, and compared with the conical fixing clamp 407, the clamping shaft 405 further includes a reset spring, and the rotating shaft of the clamping shaft 405 is connected to the movable bracket 403 through a bearing. The upper end of the movable bracket 403 is provided with an annular clamping groove, and the side wall of the annular clamping groove is provided with a protruding guide bar, which is a rod parallel to the center line of the annular member. The movable bracket 403 also includes a linear ring, which is an annular member, and the outer wall of the linear ring is provided with a groove adapted to the protruding guide bar, and the outer diameter of the linear ring is adapted to the inner diameter of the annular clamping groove, and the linear ring is arranged in the annular clamping groove.

[0046] The rotating shaft of the clamping rotating shaft 405 passes through the linear ring and is connected to the linear ring bearing. The return spring is sleeved on the rotating shaft of the clamping rotating shaft 405 and is located between the annular member of the clamping rotating shaft 405 and the annular clamping groove.

[0047] When in use, pull the rotating shaft of the clamping shaft 405 to make the clamping shaft 405 run towards the movable bracket 403, so as to clamp one end of the steel pipe to the conical fixing clamp 407, and after the other end is aligned with the annular part of the clamping shaft 405, release the rotating shaft of the clamping shaft 405, and under the action of the reset spring, the clamping shaft 405 docks with the other end of the steel pipe.

[0048] The motor drives the clamping shaft 405 through a belt to run, which can drive the steel pipe to rotate, so as to facilitate the painting operation.

[0049] In some embodiments, the air drying system 6 includes: a centrifugal fan 601, a control cabinet 602, an air duct 603, an air drying rack 604 and an exhaust hole 604. The air drying rack 604 is arranged along the extension direction of the support frame 101 and is relatively fixed to the support frame 101. A plurality of exhaust holes 604 are fixed on the air drying rack 604, and the plurality of exhaust holes 604 face the upper part of the support frame 101 between the fixed support 402 and the movable support 403. The plurality of exhaust holes 604 are all connected to the centrifugal fan 601 through the air duct 603.

[0050] In some examples, the air drying system 6 includes: an air compressor 601, a control cabinet 602, an air duct 603, a bracket 604, and an exhaust hole 604. The control cabinet 602 is connected to the air compressor 601 and the air duct 603 to realize the conversion and transportation of air. The air duct 603 is fixed on the supporting structure 1 through the bracket 604. The air duct 603 is provided with a plurality of exhaust holes 604. The air is discharged through the exhaust holes 604 and then blown onto the steel pipe sprayed with paint, so that the paint is quickly dried, and the use efficiency and the quality of the finished product are improved.

[0051] The overall power distribution system 5 of the steel pipe spraying device includes: a power distribution control cabinet 501, a line trough 502, an electric control line 503, and a control handle 504. The power distribution line cabinet 501 connects various devices of the spraying device through the electric control line to realize the operation of various functions, including the sliding and spraying of the spraying chamber 303, the rotation of the steel pipe rolling structure 4, the start and stop of the air drying system 6, etc. The electric control line 503 is installed in the line trough 502, and the line trough 502 is set on both sides of the support structure 1. The control handle 503 is connected to the power distribution control cabinet 501 through the electric control line 503, and the above functions can be operated.

[0052] In the description of this specification, specific features, structures, materials or characteristics may be combined in an appropriate manner in any one or more embodiments or examples.

[0053] The above are only specific embodiments of the present invention, but the protection scope of the present invention is not limited thereto. Any changes or substitutions that can be easily thought of by a person skilled in the art within the technical scope disclosed by the present invention should be included in the protection scope of the present invention. Therefore, the protection scope of the present invention should be based on the protection scope of the claims.

Claims

1. A steel pipe spraying device for construction, characterized in that: include: A support structure (1), a sliding structure (2), a spraying structure (3), a rolling structure (4), a power distribution system (5) and an air drying system (6); the support structure (1) is installed and connected with the sliding structure (2), the spraying structure (3), the rolling structure (4), the power distribution system (5) and the air drying system (6); the sliding structure (2) is connected to the spraying structure (3); the spraying structure (3) is used to spray the steel pipe with two chambers; the rolling structure (4) is used to drive the steel pipe to run; the air drying system (6) is arranged above the sliding structure (2); the air drying system (6) is configured to blow air to the steel pipe on the sliding structure (2) to quickly air dry the paint on the surface of the steel pipe; The power distribution system (5) is electrically connected to the sliding structure (2), the spraying structure (3), the rolling structure (4), and the air drying system (6).

2. The steel pipe spraying device for construction according to claim 1 is characterized in that: The support structure (1) comprises: a support frame (101), a wheel axle (102), a steel wheel (103) and a lifting ring (104); the support frame (101) is a square frame structure, a plurality of wheel axles (102) are arranged at the lower part of the support frame (101), and a steel wheel (103) is arranged at each end of each wheel axle (102); and a plurality of lifting rings (104) are arranged at the upper part of the support frame (101).

3. The steel pipe spraying device for construction according to claim 2 is characterized in that: The sliding structure (2) comprises: a track (201) and a limit stopper (202); the track (201) comprises two C-shaped steel rods; and a C-shaped steel rod is fixed to the upper part of each of the two sides of the support frame (101); Two limit blocks (202) are arranged on the C-shaped steel rod along its extension direction, and the two limit blocks (202) are used to limit the spraying structure (3) from sliding back and forth within its range along the C-shaped steel rod.

4. The steel pipe spraying device for construction according to claim 3 is characterized in that: The spraying structure (3) comprises: a spraying wheel shaft (301), a sliding wheel (302), a spraying chamber (303), a movable flap (304), a double chamber partition (305), a steel pipe hole (306), a nozzle 1 (307), a nozzle 2 (308), a spraying pipe 1 (309), a spraying pipe 2 (310), a paint container 1 (311), a paint container 2 (312), an air compressor (313) and a spraying control box (314); The spray chamber (303) is a square box body, a double chamber partition (305) is fixed inside the spray chamber (303), the double chamber partition (305) divides the spray chamber (303) into two spray chambers, the spray chamber (303) and the double chamber partition (305) are both provided with steel pipe holes (306), and a plurality of the steel pipe holes (306) are co-centered, and at least one nozzle is provided in each spray chamber: one of the spray chambers is provided with nozzle 1 (307), and the other spray chamber is provided with nozzle 2 (308); A bracket is fixed below the spraying chamber (303), and at least two spraying wheel shafts (301) are arranged on the bracket. A sliding wheel (302) is arranged at both ends of each spraying wheel shaft (301), and the sliding wheel is correspondingly arranged on the C-shaped steel rod; Two paint containers, an air compressor (313) and a spray control box (314) are provided on one side of the spray chamber (303); the two paint containers include: paint container 1 (311) and paint container 2 (312); the paint container 1 (311) and the paint container 2 (312) are respectively connected to nozzle 1 (307) and nozzle 2 (308) in a one-to-one correspondence, and the pipeline between the paint container 1 (311) and the nozzle 1 (307) is connected to the exhaust port of the air compressor (313), and the pipeline between the paint container 2 (312) and the nozzle 2 (308) is connected to the exhaust port of the air compressor (313). A first solenoid valve is provided on the pipeline between the paint container 1 (311) and the nozzle 1 (307), and a second solenoid valve is provided on the pipeline between the paint container 2 (312) and the nozzle 2 (308), and both the first solenoid valve and the second solenoid valve are electrically connected to the spray control box (314).

5. The steel pipe spraying device for construction according to claim 4 is characterized in that: The rolling structure (4) comprises: a bracket fixing rod (401), a fixed bracket (402), a movable bracket (403), a motor (404), a clamping shaft (405), a transmission belt (406) and a conical fixing clamp (407); The support fixing rod (401) comprises at least one straight rod, and the straight rod is fixed below the support frame (101); The fixed bracket (402) is a rod as a whole, and is arranged between the spray chamber (303) and the paint container, and is fixedly connected to the bracket fixing rod (401). The upper end of the fixed bracket (402) is provided with a conical fixing clip with an opening facing upward, and the conical fixing clip rotates around its center line relative to the fixed bracket (402); The movable bracket (403) is arranged at one end of the support frame (101) away from the fixed bracket (402), the movable bracket (403) is fixed on the bracket fixing rod (401), and a clamping shaft (405) with an opening facing upward is arranged at the upper end of the movable bracket (403), and the clamping shaft (405) rotates around its center line relative to the movable bracket (403); A motor (404) is also fixed on the support fixing rod (401) on the side of the movable support (403) away from the fixed support (402), and a belt is used to drive the motor (404) and the clamping shaft (405).

6. The steel pipe spraying device for construction according to claim 5 is characterized in that: The air drying system (6) comprises: a centrifugal fan (601), a control cabinet (602), an air duct (603), an air drying rack (604) and an exhaust hole (604); The air-drying rack (604) is arranged along the extension direction of the support frame (101) and is fixed relative to the support frame (101). A plurality of exhaust holes (604) are fixed on the air-drying rack (604), and the plurality of exhaust holes (604) face upwardly of the support frame (101) between the fixed support frame (402) and the movable support frame (403). The plurality of exhaust holes (604) are all connected to the centrifugal fan (601) via an air duct (603).

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