Surface anticorrosive coating spraying equipment for steel structure engineering

Abstract

The invention discloses steel structure engineering surface anticorrosive coating spraying equipment which comprises an air spray gun, a liquid storage tank and a walking bearing part, the air spray gun is provided with an air inlet pipe and a liquid inlet pipe, and the walking bearing part comprises a semicircular rod, a driving wheel, a driven wheel, an elastic telescopic rod, a positioning beam, a connecting rod and a driving motor. The two free ends of the semicircular rod are fixedly connected with a left vertical plate and a right vertical plate respectively, and the left vertical plate and the right vertical plate are parallel and are perpendicular to the plane where the semicircular rod is located. According to the spraying device, the walking bearing part is arranged, the walking bearing part can carry the gas spraying gun and the liquid storage tank to move up and down along the vertically-distributed steel structure profile to be sprayed, and reliable rolling connection of the walking bearing part and the steel structure profile is achieved through gravity traction of the liquid storage tank; when the liquid storage tank is lifted upwards, the walking bearing part can be easily separated from the vertically-distributed profiles, in conclusion, the vertical spraying function is achieved, manual operation is not needed, and profile switching spraying operation is convenient.

Description

Technical Field

[0001] The invention relates to the technical field of steel structure spraying, and in particular to an anti-corrosion coating spraying device for the surface of a steel structure engineering. Background Art

[0002] Spraying anti-corrosion coating on the surface of steel structure can avoid corrosion damage and extend the service life. The surface anti-corrosion coating of steel structure building will fall off after being used for a period of time, so on-site spraying operation is required. For horizontally distributed steel structures, scaffolding can be set up for manual horizontal spraying. When spraying, use air spray gun and liquid storage tank, and use air pressure and siphon effect to spray the anti-corrosion liquid on the horizontal steel structure. For vertically distributed steel structures, such as square steel, channel steel or I-beam, spraying is more inconvenient. Since the spraying method is up and down spraying, it is necessary to set up scaffolding one by one in the height direction to realize spraying. The labor intensity is high and the safety is poor. There are some spraying equipment on the market that can be attached to steel structures and can also move up and down, but the docking operation is inconvenient and the stability is poor.

[0003] Therefore, the present invention provides an anti-corrosion coating spraying device for the surface of steel structure engineering. Summary of the invention

[0004] The purpose of the present invention is to solve the problems mentioned in the background technology and to propose an anti-corrosion coating spraying device for the surface of steel structure engineering.

[0005] In order to achieve the above object, the present invention adopts the following technical solutions:

[0006] A device for spraying anti-corrosion coatings on the surface of steel structure engineering, comprising an air spray gun, a liquid storage tank and a walking bearing part, the air spray gun is provided with an air inlet pipe and a liquid inlet pipe, the walking bearing part comprises a semicircular rod, a driving wheel, a passive wheel, an elastic telescopic rod, a positioning beam, a connecting rod and a driving motor, the two free ends of the semicircular rod are respectively fixedly connected to a left vertical plate and a right vertical plate, the left vertical plate and the right vertical plate are parallel and perpendicular to the plane where the semicircular rod is located, an upper support plate is perpendicularly connected to the side of the right vertical plate facing the left vertical plate, one end of the driving wheel is rotatably connected to one side of the upper support plate, the rotation axis of the driving wheel is perpendicular to the same plane where the left vertical plate and the right vertical plate are located, one side of the fixed rod on the elastic telescopic rod is rotatably connected to one side of the left vertical plate, and the rotation axis is the rotation axis of the driving wheel. Vertically, the passive wheel is located between the left and right vertical plates, one end of the passive wheel is rotatably connected to the free end of the moving rod on the elastic telescopic rod, and the rotation axis is parallel to the rotation axis of the driving wheel, the positioning beam is slidably connected to the side of the left vertical plate away from the right vertical plate, the bottom of the positioning beam is hingedly connected by a connecting rod and the free end of the fixed rod, the outer peripheral walls of the driving wheel and the passive wheel are each provided with a circle of V-shaped grooves, the groove bottom angle of the V-shaped groove is 90 degrees, and the cross-sections of the bottom of the V-shaped grooves on the driving wheel and the passive wheel coincide, the driving motor is rotatably connected to one side of the right vertical plate, and its output shaft is fixedly connected to a driving gear meshing with the outer peripheral wall of the driving wheel, the air spray gun is arranged on the top of the positioning beam, and the liquid storage tank is suspended at the bottom of the positioning beam and a negative pressure suction pipe is arranged thereon.

[0007] As a further description of the above technical solution:

[0008] The walking bearing part also includes an auxiliary wheel, and one side of the right vertical plate is fixedly connected to a lower support plate located below the upper support plate. One end of the auxiliary wheel is rotatably connected to one side of the lower support plate, and the rotation axis is parallel to the rotation axis of the driving wheel. The outer peripheral wall of the auxiliary wheel is also provided with a circle of V-shaped grooves, and the cross sections passing through the bottom of the V-shaped grooves on the driving wheel and the auxiliary wheel overlap.

[0009] As a further description of the above technical solution:

[0010] The other ends of the driving wheel and the auxiliary wheel are respectively fixedly connected to an upper pulley and a lower pulley which are coaxially distributed, and the upper pulley is connected to the lower pulley through a belt.

[0011] As a further description of the above technical solution:

[0012] A guide sleeve is fixedly arranged on the top of the positioning beam and is axially slidably connected to the spray pipe on the air spray gun. The outer peripheral wall of the guide sleeve is penetrated by a locking bolt with one end screwed and used in conjunction with the spray pipe.

[0013] As a further description of the above technical solution:

[0014] The outlet end of the injection pipe is fixedly connected with a horizontally distributed C-shaped pipe, and the inner peripheral wall of the C-shaped pipe is provided with nozzles distributed at equal intervals in the circumferential direction.

[0015] In summary, due to the adoption of the above technical solution, the beneficial effects of the present invention are:

[0016] 1. In the present invention, a walking bearing part is provided, which can carry the air spray gun and the liquid storage tank and move up and down along the vertically distributed steel structure profile to be sprayed, and the reliable rolling connection between the walking bearing part and the steel structure profile is achieved by the gravity traction of the liquid storage tank. When the liquid storage tank is lifted upward, the walking bearing part can be easily separated from the vertically distributed profile. In summary, it has a vertical spraying function, does not require manual operation, and is convenient for profile switching and spraying operation.

[0017] 2. In the present invention, the walking bearing part also includes an auxiliary wheel. A lower support plate located below the upper support plate is fixedly connected to one side of the right vertical plate. One end of the auxiliary wheel is rotatably connected to one side of the lower support plate, and the rotation axis is parallel to the rotation axis of the driving wheel. A circle of V-grooves is also provided on the outer peripheral wall of the auxiliary wheel. The cross sections of the bottoms of the V-grooves on the driving wheel and the auxiliary wheel coincide. Thus, the driving wheel, the passive wheel and the auxiliary wheel achieve three-point clamping of the profile, which can improve the stability and reliability of the equipment moving up and down along the profile.

[0018] 3. In the present invention, the outlet end of the spray pipe is fixedly connected with a horizontally distributed C-tube. The notch on the C-tube facilitates the steel structure to enter the inner cavity of the C-tube. The inner wall of the C-tube is provided with nozzles distributed at equal intervals in the circumferential direction. Thus, the profile can be fully sprayed by moving up and down on one side, which greatly improves the spraying efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is a schematic diagram of the structure of the air spray gun, liquid storage tank and walking bearing part of the anti-corrosion coating spraying equipment for steel structure engineering surface proposed by the present invention;

[0020] Figure 2 The present invention proposes a kind of anti-corrosion coating spraying equipment for steel structure engineering surface Figure 1 The structural diagram of the main view;

[0021] Figure 3 This is a schematic diagram of the structure of a semicircular rod, a positioning beam, an elastic telescopic rod, a passive wheel, a connecting rod and a liquid storage tank for a surface anti-corrosion coating spraying device for steel structure engineering proposed by the present invention;

[0022] Figure 4 This is a schematic diagram of the structure of the driving wheel, the passive wheel, the moving rod, the right vertical plate and the driving motor of the anti-corrosion coating spraying equipment for the surface of the steel structure engineering proposed by the present invention;

[0023] Figure 5 This is a schematic diagram of the structure of the right vertical plate, driving wheel and auxiliary wheel used in the anti-corrosion coating spraying equipment for steel structure engineering surface proposed by the present invention;

[0024] Figure 6 This is a schematic structural diagram of the coordination of a spray pipe and a positioning beam for anti-corrosion coating spraying equipment on the surface of a steel structure project proposed by the present invention.

[0025] Legend:

[0026] 1. Air spray gun; 11. Air inlet pipe; 12. Jet pipe; 121. C-type pipe; 1211. Nozzle; 13. Liquid inlet pipe; 2. Liquid storage tank; 21. Negative pressure suction pipe; 3. Walking bearing part; 31. Semicircular rod; 311. Left vertical plate; 312. Right vertical plate; 3121. Upper support plate; 3122. Lower support plate; 32. Driving wheel; 321. Upper pulley; 33. Passive wheel; 34. Elastic telescopic rod; 341. Fixed rod; 342. Moving rod; 35. Positioning beam; 351. Guide sleeve; 3511. Locking bolt; 36. Connecting rod; 37. Driving motor; 371. Driving gear; 38. Auxiliary wheel; 381. Lower pulley; 4. V-groove. DETAILED DESCRIPTION

[0027] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions 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 are within the scope of protection of the present invention.

[0028] Example 1

[0029] See also Figure 1-5, a device for spraying anti-corrosion coating on the surface of steel structure engineering, comprising an air spray gun 1, a liquid storage tank 2 and a walking bearing part 3, the air spray gun 1 is provided with an air inlet pipe 11 and a liquid inlet pipe 13, the air inlet pipe 11 is connected to an air outlet pipe of an external air compressor through a hose, the liquid inlet pipe 13 is connected to the liquid storage tank 2, during spraying, high-pressure gas sprays the coating liquid in the liquid storage tank 2 outward, the walking bearing part 3 can carry the air spray gun 1 and the liquid storage pipe 2 to walk on vertically distributed square steel, channel steel and I-beam, so as to realize vertical spraying operation;The walking bearing part 3 includes a semicircular rod 31, a driving wheel 32, a passive wheel 33, an elastic telescopic rod 34, a positioning beam 35, a connecting rod 36 and a driving motor 37. The two free ends of the semicircular rod 31 are respectively fixedly connected to the left vertical plate 311 and the right vertical plate 312. The left vertical plate 311 and the right vertical plate 312 are parallel and perpendicular to the plane where the semicircular rod 31 is located. An upper support plate 3121 is vertically connected to the side of the right vertical plate 312 facing the left vertical plate 311. One end of the driving wheel 32 is rotatably connected to one side of the upper support plate 3121. The rotation axis of the driving wheel 32 is perpendicular to the same plane where the left vertical plate 311 and the right vertical plate 312 are located. One side of the fixed rod 341 on the elastic telescopic rod 34 is rotatably connected to one side of the left vertical plate 311 and the rotation axis is connected to the rotation of the driving wheel 32. The axis is vertical, and the passive wheel 33 is located between the left vertical plate 311 and the right vertical plate 312. One end of the passive wheel 33 is rotatably connected to the free end of the moving rod 342 on the elastic telescopic rod 34, and the rotation axis is parallel to the rotation axis of the driving wheel 32. The elastic telescopic rod 34 is in an extended state when there is no load. The positioning beam 35 is slidably connected to the side of the left vertical plate 311 away from the right vertical plate 312. The bottom of the positioning beam 35 is hingedly connected to the free end of the fixed rod 341 through a connecting rod 36. The outer peripheral walls of the driving wheel 32 and the passive wheel 33 are both provided with a circle of V-shaped grooves 4. The bottom angle of the V-shaped grooves 4 is 90 degrees. The V-shaped grooves 4 on the driving wheel 32 and the passive wheel 33 are used to cooperate with the diagonal edges of square steel, channel steel or I-beam. In order to improve the driving wheel 32 The auxiliary wheel 38 is provided with a V-shaped groove 4 on the outer wall thereof, and the cross-sections of the bottom of the V-shaped groove 4 on the driving wheel 32 and the driven wheel 33 are overlapped. The walking bearing part 3 also includes an auxiliary wheel 38. A lower support plate 3122 located below the upper support plate 3121 is fixedly connected to one side of the right vertical plate 312. One end of the auxiliary wheel 38 is rotatably connected to one side of the lower support plate 3122, and the rotation axis is parallel to the rotation axis of the driving wheel 32. The outer peripheral wall of the auxiliary wheel 38 is also provided with a circle of V-shaped grooves 4. The cross-sections of the bottom of the V-shaped grooves 4 on the driving wheel 32 and the auxiliary wheel 38 are overlapped. The height of the passive wheel 33 is located between the driving wheel 32 and the auxiliary wheel 38, so that the left The vertical plate 311 and the right vertical plate 312 are reliably connected to the steel structure, wherein the other ends of the driving wheel 32 and the auxiliary wheel 38 are respectively fixedly connected to the upper pulley 321 and the lower pulley 381 which are coaxially distributed. The upper pulley 321 is connected to the lower pulley 381 through a belt, which increases the friction driving force of the semicircular rod 31 to move up and down relative to the steel structure; the driving motor 37 is rotatably connected to one side of the right vertical plate 312, and its output shaft is fixedly connected to a driving gear 371 meshing with the outer peripheral wall of the driving wheel 32. The air spray gun 1 is arranged on the top of the positioning beam 35, and the liquid storage tank 2 is suspended at the bottom of the positioning beam 35 and a negative pressure suction pipe 21 is arranged thereon. A hanging rod can be welded on the top of the liquid storage tank 2, and the hanging rod is rotatably connected to the bottom of the positioning beam 35, and the negative pressure suction pipe 21 is connected to the liquid inlet pipe 13. ;

[0030] Example 2

[0031] See also Figure 6 The difference from Example 1 is that a guide sleeve 351 axially slidably connected to the injection pipe 12 on the air spray gun 1 is fixedly provided on the top of the positioning beam 35, and a locking bolt 3511 with one end screwed on and used in conjunction with the injection pipe 12 is passed through the outer peripheral wall of the guide sleeve 351. The distance between the injection pipe 12 and the profile can be adjusted by the locking bolt 3511. It is further described that a horizontally distributed C-tube 121 is fixedly connected to the outlet end of the injection pipe 12. The notch on the C-tube 121 facilitates the steel structure to enter the inner cavity of the C-tube 121. The inner peripheral wall of the C-tube 121 is provided with nozzles 1211 circumferentially evenly spaced. Therefore, the profile can be fully sprayed by moving up and down on one side, greatly improving the spraying efficiency.

[0032] Working principle: When in use, the air inlet pipe 11 is connected to the external air compressor through the air line, and the air compressor provides air source to the air spray gun 1, and then the spray liquid is injected into the liquid storage tank 2, and the driving wheel 32 on the right vertical plate 312 and the V-shaped groove 4 on the auxiliary wheel 38 are buckled on an edge of the square steel, channel steel or I-beam, and then the passive wheel 33 is controlled to move downward and the V-shaped groove 4 on it is buckled on the diagonal edge of the square steel, channel steel or I-beam, and then the passive wheel 33 is released, and under the action of the gravity of the liquid storage tank 2 The positioning beam 35 is driven to slide downward relative to the left vertical plate 311, the connecting rod 36 will push the fixed rod 341 to rotate, and the moving rod 342 will be compressed into the fixed rod 341. At this time, the passive wheel 33, the driving wheel 32 and the auxiliary wheel 38 will elastically squeeze the above-mentioned steel, and then the driving motor 37 is controlled to start and drive the driving gear 371 to rotate. The driving wheel 32 rotates and moves upward along the steel. When it moves to the top of the steel, the air spray gun 1 is controlled to open and spray the steel, and the driving wheel 32 is controlled to rotate in the opposite direction to realize the spraying operation from top to bottom.

[0033] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. An anti-corrosion coating spraying device for steel structure engineering surface, comprising an air spray gun (1), a liquid storage tank (2) and a walking bearing part (3), wherein the air spray gun (1) is provided with an air inlet pipe (11) and a liquid inlet pipe (13), characterized in that: The walking bearing part (3) comprises a semicircular rod (31), a driving wheel (32), a passive wheel (33), an elastic telescopic rod (34), a positioning beam (35), a connecting rod (36) and a driving motor (37); two free ends of the semicircular rod (31) are respectively fixedly connected to a left vertical plate (311) and a right vertical plate (312); the left vertical plate (311) and the right vertical plate (312) are parallel and perpendicular to the plane where the semicircular rod (31) is located; and a side of the right vertical plate (312) facing the left vertical plate (311) is The upper support plate (3121) is vertically connected, one end of the driving wheel (32) is rotatably connected to one side of the upper support plate (3121), the rotation axis of the driving wheel (32) is perpendicular to the same plane where the left vertical plate (311) and the right vertical plate (312) are located, one side of the fixed rod (341) on the elastic telescopic rod (34) is rotatably connected to one side of the left vertical plate (311), and the rotation axis is perpendicular to the rotation axis of the driving wheel (32), and the passive wheel (33) is located between the left vertical plate (311) and the right vertical plate (312). 312), one end of the passive wheel (33) is rotatably connected to the free end of the moving rod (342) on the elastic telescopic rod (34), and the rotation axis is parallel to the rotation axis of the driving wheel (32); the positioning beam (35) is slidably connected to the side of the left vertical plate (311) away from the right vertical plate (312); the bottom of the positioning beam (35) is hingedly connected to the free end of the fixed rod (341) through a connecting rod (36); the outer peripheral walls of the driving wheel (32) and the passive wheel (33) are both provided with a V-shaped groove ( 4), the bottom angle of the V-shaped groove (4) is 90 degrees, the cross-sections of the bottom of the V-shaped groove (4) on the driving wheel (32) and the driven wheel (33) overlap, the driving motor (37) is rotatably connected to one side of the right vertical plate (312), and its output shaft is fixedly connected to a driving gear (371) meshing with the outer peripheral wall of the driving wheel (32), the air spray gun (1) is arranged on the top of the positioning beam (35), and the liquid storage tank (2) is suspended at the bottom of the positioning beam (35) and a negative pressure suction pipe (21) is arranged thereon.

2. The anti-corrosion coating spraying equipment for steel structure engineering surface according to claim 1 is characterized in that: The walking bearing portion (3) further comprises an auxiliary wheel (38), one side of the right vertical plate (312) is fixedly connected to a lower support plate (3122) located below the upper support plate (3121), one end of the auxiliary wheel (38) is rotatably connected to one side of the lower support plate (3122), and the rotation axis is parallel to the rotation axis of the driving wheel (32), and the outer peripheral wall of the auxiliary wheel (38) is also provided with a V-shaped groove (4) around it, and the cross sections passing through the bottom of the V-shaped groove (4) on the driving wheel (32) and the auxiliary wheel (38) overlap.

3. The anti-corrosion coating spraying equipment for steel structure engineering surface according to claim 2 is characterized in that: The other ends of the driving wheel (32) and the auxiliary wheel (38) are respectively fixedly connected to an upper pulley (321) and a lower pulley (381) which are coaxially distributed, and the upper pulley (321) is connected to the lower pulley (381) via a belt.

4. The anti-corrosion coating spraying equipment for steel structure engineering surface according to claim 1 is characterized in that: A guide sleeve (351) is fixedly provided on the top of the positioning beam (35) and is axially slidably connected to the spray pipe (12) on the air spray gun (1). The outer peripheral wall of the guide sleeve (351) is penetrated by a locking bolt (3511) screwed on one end for use with the spray pipe (12).

5. The anti-corrosion coating spraying equipment for steel structure engineering surface according to claim 4 is characterized in that: The outlet end of the injection pipe (12) is fixedly connected to a horizontally distributed C-shaped pipe (121), and the inner peripheral wall of the C-shaped pipe (121) is provided with nozzles (1211) distributed at equal intervals in the circumferential direction.

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