Spraying device for spraying anti-rust paint on building steel beam

Abstract

The invention belongs to the technical field of steel beam rust-proof spraying, and particularly relates to a spraying device for building steel beam rust-proof paint spraying, which comprises a moving trolley, a push frame, a coating barrel, a speed-regulating type pressure spraying mechanism and a pressure-collecting type cleaning spraying mechanism, the push frame is arranged on one side of the moving trolley, the coating barrel is arranged on the upper wall of the moving trolley, and the speed-regulating type pressure spraying mechanism is arranged on the upper wall of the moving trolley. The speed regulation type pressure spraying mechanism comprises a pressurizing mechanism, a body expanding mechanism, a speed regulation mechanism, a uniform stirring mechanism and a spraying mechanism, the pressurizing mechanism is arranged on the side, away from the pushing frame, of the coating barrel, the body expanding mechanism is arranged on the upper wall of the coating barrel, the speed regulation mechanism is arranged on the side wall of the body expanding mechanism, and the uniform stirring mechanism is arranged on the bottom wall of the speed regulation mechanism. According to the spraying device for spraying the anti-rust paint on the building steel beam, the spraying speed and the spraying pressure of the paint can be controlled, the paint in the spraying process can be intermittently stirred, a spraying head which conducts spraying operation for a long time can be cleaned, and the spraying quality of the steel beam is guaranteed.

Description

Technical Field

[0001] The present invention belongs to the technical field of anti-rust spraying for steel beams, and specifically refers to a spraying device for anti-rust paint spraying on building steel beams. Background Art

[0002] A steel beam is a beam made of steel. Crane beams and working platform beams in factories, floor beams in multi-story buildings, purlins in roof structures, etc. can all use steel beams. I-shaped steel beams are widely used in construction. In order to extend the service life of steel beams, anti-rust paint is usually sprayed on them when they leave the factory.

[0003] At present, the existing spraying devices for anti-rust paint spraying on building steel beams have the following problems: The existing spraying equipment for anti-rust paint on building steel beams does not have the ability to control the spraying speed and spraying pressure of the paint, nor does it have the ability to stir the paint during spraying, thereby reducing the spraying effect of the paint on the steel beam. Moreover, in the long-term spraying operation of traditional spraying equipment for anti-rust paint on building steel beams, the nozzle is prone to blockage, affecting the spraying quality of the steel beam. Therefore, it cannot meet the current use requirements of spraying equipment for anti-rust paint on building steel beams. Summary of the Invention

[0004] In view of the above situation, to overcome the defects of the prior art, this solution provides a spraying device for anti-rust paint spraying on building steel beams, which can control the spraying speed and spraying pressure of the paint, can intermittently stir the paint during the spraying process, and can clean the nozzle for long-term spraying operations to ensure the spraying quality of the steel beam.

[0005] The technical solution adopted in this solution is as follows: A spraying device for anti-rust paint spraying on building steel beams proposed in this solution includes a mobile vehicle, a push frame, a paint barrel, a speed-regulating pressure spraying mechanism, and a pressure-collecting cleaning spraying mechanism. The push frame is arranged on one side of the mobile vehicle, the paint barrel is arranged on the upper wall of the mobile vehicle. The speed-regulating pressure spraying mechanism includes a pressure charging mechanism, an expansion mechanism, a speed-regulating mechanism, a stirring mechanism, and a spraying mechanism. The pressure charging mechanism is arranged on the side of the paint barrel away from the push frame, the expansion mechanism is arranged on the upper wall of the paint barrel, the speed-regulating mechanism is arranged on the side wall of the expansion mechanism, the stirring mechanism is arranged on the bottom wall of the speed-regulating mechanism, and the spraying mechanism is arranged on the side of the paint barrel close to the push frame. The pressure-collecting cleaning spraying mechanism includes an air collecting mechanism, an atomizing mechanism, and a discharging spraying mechanism. The air collecting mechanism is arranged on the upper wall of the paint barrel, the atomizing mechanism is arranged on the upper wall of the pressure charging mechanism, and the discharging spraying mechanism is arranged on the side wall of the air collecting mechanism.

[0006] As a further optimization of the solution in this case, the pressurizing mechanism includes a pressure seat, a booster pump and a booster pipe. The pressure seat is arranged on the side of the paint cylinder away from the push frame. The booster pump is arranged on the inner wall of the end of the pressure seat away from the paint cylinder. The booster pipe is communicatively arranged between the power end of the booster pump and the bottom of the paint cylinder. The body expansion mechanism includes a speed regulation sleeve, a speed regulation spring, an extrusion slide plate, a proximity switch and an induction block. The speed regulation sleeve is communicatively arranged on the upper wall of the paint cylinder. The extrusion slide plate is slidably arranged on the inner wall of the paint cylinder. The speed regulation spring is arranged between the speed regulation sleeve and the extrusion slide plate. Multiple groups of the proximity switches penetrate through the upper wall of the paint cylinder. The induction block is arranged on the upper wall of the extrusion slide plate below the proximity switch. The speed regulation mechanism includes a speed regulation metal rod and a speed regulation electromagnet. Multiple groups of the speed regulation metal rods penetrate through the paint cylinder and are arranged on the upper wall of the extrusion slide plate. The speed regulation electromagnet is arranged on the side wall of the speed regulation sleeve. The stirring mechanism includes a spiral column, a spiral disc and a stirring rod. The spiral disc is rotatably arranged on the bottom wall of the paint cylinder. Multiple groups of the stirring rods are arranged on the side wall of the spiral disc. The spiral column is arranged on the bottom wall of the extrusion slide plate. One end of the spiral column away from the extrusion slide plate is arranged inside the spiral disc. The spiral column and the spiral disc are engaged by threads. The spraying mechanism includes a high-pressure hose and a spraying gun. The high-pressure hose is communicatively arranged on the bottom wall of the end of the paint cylinder close to the push frame. The spraying gun is arranged at the end of the high-pressure hose away from the paint cylinder.

[0007] During use, the normal state of the extrusion slide plate is extended. A paint valve is pre-set on the side wall of the paint cylinder to facilitate filling the inside of the paint cylinder below the extrusion slide plate with paint. After the paint inside the paint cylinder contacts the bottom wall of the extrusion slide plate, the paint valve is closed. The booster pump pressurizes the inside of the paint cylinder through the booster pipe. After the pressure inside the paint cylinder increases, the extrusion slide plate slides upward along the inner wall of the paint cylinder through the deformation of the speed regulation spring. The extrusion slide plate drives the induction block to fit with the upper wall of the paint cylinder. The proximity switch senses the induction block, and stops pressurizing the inside of the paint cylinder, completing the pressurization operation of the paint.

[0008] Preferably, the gas collection mechanism includes a gas collection box, a one-way air outlet valve, a gas collection pipe and a one-way air inlet valve. The gas collection box is arranged outside the speed regulation sleeve. One end of the speed regulation metal rod away from the extrusion slide plate penetrates through and is arranged inside the gas collection box. Multiple groups of the one-way air outlet valves are communicatively arranged on the upper wall of the paint cylinder. The gas collection pipe is communicatively arranged between the one-way air outlet valve and the gas collection box. Multiple groups of the one-way air inlet valves are communicatively arranged on the upper wall of the gas collection box on one side of the one-way air outlet valve. The atomization mechanism includes a water tank, an atomization motor and an atomization pipe. The water tank is arranged on the upper wall of the pressure seat. The atomization motor is arranged on the upper wall of the water tank. The water pumping end of the atomization motor penetrates through and is arranged inside the water tank. The atomization pipe is communicatively arranged between the mist discharging end of the atomization motor and the gas collection box. The overspray discharging mechanism includes a pressure relief valve, an interception frame and an adsorption cotton layer. Multiple groups of the pressure relief valves are communicatively arranged on the side wall of the gas collection box. The interception frame is arranged on the side of the gas collection box close to the pressure relief valve. The adsorption cotton layer is arranged on the side of the interception frame close to the pressure relief valve.

[0009] During use, after the paint is released inside the paint cylinder, the pressure will fluctuate. The pressure exerted on the speed-regulating spring by the extrusion slide plate decreases. The speed-regulating spring elastically resets and pushes the extrusion slide plate. The extrusion slide plate sucks outside air into the inner end of the paint cylinder near the air collection box through the one-way intake valve. The extrusion slide plate drives the induction block away from the proximity switch, and the proximity switch cannot sense the induction block. Subsequently, the booster pump pressurizes the inside of the paint cylinder through the booster pipe. The pressure at the bottom of the paint cylinder increases, and the extrusion slide plate slides upward using the deformation of the speed-regulating spring. The extrusion slide plate drives the induction block closer to the proximity switch, and the proximity switch senses the induction block. When the extrusion slide plate slides upward, the extrusion slide plate squeezes the air in the upper part of the paint cylinder into the air collection box through the air collection pipe. The pressure relief threshold of the pressure relief valve is preset. During the paint spraying process, it is necessary to continuously pressurize the paint inside the paint cylinder to ensure that the spraying pressure of the paint remains consistent. The extrusion slide plate continuously transports gas into the air collection box within a reasonable range of change in the internal pressure of the paint. Moreover, the atomization motor atomizes the water in the water tank through the water extraction end and transports it into the atomization pipe. The atomization pipe transports the water mist into the air collection box to increase the humidity of the air inside the air collection box. As the spraying operation continues for a long time, the spray head is replaced. The replaced spray head is screwed into the end of the pressure relief valve away from the air collection box. When the pressure inside the air collection box reaches the preset threshold of the pressure relief valve, the pressure relief valve conducts. The gas containing water mist inside the air collection box flushes the spray head through the pressure relief valve. The gas passing through the spray head enters the adsorption cotton layer, and the adsorption cotton layer collects the sewage containing paint.

[0010] Specifically, a pressure sensor and a controller are respectively provided on the upper wall of the air collection box, and the pressure measuring end of the controller penetrates and is arranged inside the paint cylinder.

[0011] Among them, the controller is electrically connected to the booster pump, the proximity switch, the speed-regulating electromagnet, the atomization motor, and the pressure sensor respectively.

[0012] The beneficial effects achieved by adopting the above structure are as follows: Compared with the prior art, this solution adopts a combination of a speed-regulating pressure spraying mechanism and a pressure-collecting cleaning spraying mechanism. Through the set pressure charging mechanism, body expansion mechanism, speed regulation mechanism, stirring mechanism, spraying mechanism, gas collection mechanism, atomization mechanism and spraying discharge mechanism, the pressure of the sprayed paint can be maintained within the deviation range, ensuring the spraying effect on the steel beam. During the up-and-down fluctuation of the extrusion slide plate, it moves vertically along the inner wall of the spiral disc through the spiral column. The spiral column and the spiral disc are engaged by threads. During the vertical movement, the spiral column drives the spiral disc to rotate. The spiral disc stirs the paint inside the paint barrel through the stirring rod. Stirring breaks the agglomeration of solid particles through mechanical action, making them evenly dispersed in the paint medium, reducing the probability of nozzle blockage. Using the collected pressurized gas combined with water mist can wash the nozzle during long-term operation, facilitating the timely replacement of the spray gun used for spraying operations, and can clean the removed nozzle in time for subsequent use. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 is the overall structural schematic diagram of this solution; Figure 2 is the front perspective view of this solution; Figure 3 is the bottom perspective view of this solution; Figure 4 is the top perspective view of this solution; Figure 5 is the internal structural schematic diagram of this solution; Figure 6 is the front view of this solution; Figure 7 is the left view of this solution; Figure 8 is the right view of this solution; Figure 9 is the top view of this solution; Figure 10 is Figure 9 the sectional view of part A-A of Figure 11 is Figure 10 the enlarged structural view of part I of Figure 12 is Figure 1 the enlarged structural view of part II of

[0014] Among them, 1. mobile vehicle, 2. push frame, 3. paint cylinder, 4. speed-regulating pressure spraying mechanism, 5. pressurizing mechanism, 6. pressure seat, 7. booster pump, 8. booster pipe, 9. body-expanding mechanism, 10. speed-regulating sleeve, 11. speed-regulating spring, 12. extrusion slide plate, 13. proximity switch, 14. induction block, 15. speed-regulating mechanism, 16. speed-regulating metal rod, 17. speed-regulating electromagnet, 18. stirring mechanism, 19. spiral column, 20. spiral disc, 21. stirring rod, 22. spraying mechanism, 23. high-pressure hose, 24. spraying gun, 25. pressure-collecting cleaning spraying mechanism, 26. air-collecting mechanism, 27. air-collecting box, 28. one-way air outlet valve, 29. air-collecting pipe, 30. one-way air inlet valve, 31. atomizing mechanism, 32. water tank, 33. atomizing motor, 34. atomizing pipe, 35. discharging spraying mechanism, 36. pressure relief valve, 37. intercepting frame, 38. adsorption cotton layer, 39. pressure sensor, 40. controller.

[0015] The attached drawings are used to provide a further understanding of the solution and form a part of the description. They are used together with the embodiments of the solution to explain the solution and do not constitute a limitation to the solution. Detailed implementation manners

[0016] Next, the technical solutions in the embodiments of the solution will be clearly and completely described in conjunction with the attached drawings in the embodiments of the solution. Obviously, the described embodiments are only a part of the embodiments of the solution, rather than all the embodiments; based on the embodiments in the solution, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the scope of protection of the solution.

[0017] In the description of the solution, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", etc. indicating the orientation or position relationship are based on the orientation or position relationship shown in the attached drawings, and are only for the convenience of describing the solution 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 thus cannot be understood as a limitation to the solution.

[0018] Such as Figures 1-12As shown in the figure, a spraying device for rust-proof paint spraying on building steel beams proposed by this solution includes a mobile vehicle 1, a pushing frame 2, a paint barrel 3, a speed-regulating pressure spraying mechanism 4, and a pressure-collecting cleaning spraying mechanism 25. The pushing frame 2 is arranged on one side of the mobile vehicle 1, the paint barrel 3 is arranged on the upper wall of the mobile vehicle 1, the speed-regulating pressure spraying mechanism 4 includes a pressure charging mechanism 5, an expansion mechanism 9, a speed-regulating mechanism 15, a stirring mechanism 18, and a spraying mechanism 22. The pressure charging mechanism 5 is arranged on the side of the paint barrel 3 away from the pushing frame 2, the expansion mechanism 9 is arranged on the upper wall of the paint barrel 3, the speed-regulating mechanism 15 is arranged on the side wall of the expansion mechanism 9, the stirring mechanism 18 is arranged on the bottom wall of the speed-regulating mechanism 15, and the spraying mechanism 22 is arranged on the side of the paint barrel 3 close to the pushing frame 2. The pressure-collecting cleaning spraying mechanism 25 includes a gas collecting mechanism 26, an atomizing mechanism 31, and a discharging spraying mechanism 35. The gas collecting mechanism 26 is arranged on the upper wall of the paint barrel 3, the atomizing mechanism 31 is arranged on the upper wall of the pressure charging mechanism 5, and the discharging spraying mechanism 35 is arranged on the side wall of the gas collecting mechanism 26.

[0019] The pressure charging mechanism 5 includes a pressure seat 6, a booster pump 7, and a booster pipe 8. The pressure seat 6 is arranged on the side of the paint barrel 3 away from the pushing frame 2, the booster pump 7 is arranged on the inner wall of the end of the pressure seat 6 away from the paint barrel 3, and the booster pipe 8 is communicatively arranged between the power end of the booster pump 7 and the bottom of the paint barrel 3. The expansion mechanism 9 includes a speed-regulating sleeve 10, a speed-regulating spring 11, a pressing slide plate 12, a proximity switch 13, and an induction block 14. The speed-regulating sleeve 10 is communicatively arranged on the upper wall of the paint barrel 3, the pressing slide plate 12 is slidably arranged on the inner wall of the paint barrel 3, the speed-regulating spring 11 is arranged between the speed-regulating sleeve 10 and the pressing slide plate 12, multiple groups of the proximity switches 13 penetrate through the upper wall of the paint barrel 3, and the induction block 14 is arranged on the upper wall of the pressing slide plate 12 below the proximity switch 13. The speed-regulating mechanism 15 includes a speed-regulating metal rod 16 and a speed-regulating electromagnet 17. Multiple groups of the speed-regulating metal rods 16 penetrate through the paint barrel 3 and are arranged on the upper wall of the pressing slide plate 12, and the speed-regulating electromagnet 17 is arranged on the side wall of the speed-regulating sleeve 10. The stirring mechanism 18 includes a spiral column 19, a spiral disc 20, and a stirring rod 21. The spiral disc 20 is rotatably arranged on the bottom wall of the paint barrel 3, multiple groups of the stirring rods 21 are arranged on the side wall of the spiral disc 20, the spiral column 19 is arranged on the bottom wall of the pressing slide plate 12, and the end of the spiral column 19 away from the pressing slide plate 12 is arranged inside the spiral disc 20. The spiral column 19 and the spiral disc 20 are engaged by threads. The spraying mechanism 22 includes a high-pressure hose 23 and a spraying gun 24. The high-pressure hose 23 is communicatively arranged on the bottom wall of the end of the paint barrel 3 close to the pushing frame 2, and the spraying gun 24 is arranged at the end of the high-pressure hose 23 away from the paint barrel 3.

[0020] The gas collecting mechanism 26 includes a gas collecting box 27, a one-way air outlet valve 28, a gas collecting pipe 29, and a one-way air inlet valve 30. The gas collecting box 27 is arranged outside the speed regulating sleeve 10. One end of the speed regulating metal rod 16 away from the extrusion slide plate 12 penetrates into the interior of the gas collecting box 27. A plurality of groups of the one-way air outlet valves 28 are communicated and arranged on the upper wall of the paint cylinder 3. The gas collecting pipe 29 is communicated and arranged between the one-way air outlet valve 28 and the gas collecting box 27. A plurality of groups of the one-way air inlet valves 30 are communicated and arranged on the upper wall of the gas collecting box 27 on one side of the one-way air outlet valve 28. The atomizing mechanism 31 includes a water tank 32, an atomizing motor 33, and an atomizing pipe 34. The water tank 32 is arranged on the upper wall of the pressure seat 6. The atomizing motor 33 is arranged on the upper wall of the water tank 32. The water pumping end of the atomizing motor 33 penetrates into the interior of the water tank 32. The atomizing pipe 34 is communicated and arranged between the mist discharging end of the atomizing motor 33 and the gas collecting box 27. The spraying and discharging mechanism 35 includes a pressure relief valve 36, an intercepting frame 37, and an adsorption cotton layer 38. A plurality of groups of the pressure relief valves 36 are communicated and arranged on the side wall of the gas collecting box 27. The intercepting frame 37 is arranged on one side of the gas collecting box 27 close to the pressure relief valve 36. The adsorption cotton layer 38 is arranged on one side of the intercepting frame 37 close to the pressure relief valve 36.

[0021] A pressure sensor 39 and a controller 40 are respectively arranged on the upper wall of the gas collecting box 27. The pressure measuring end of the controller 40 penetrates into the interior of the paint cylinder 3.

[0022] The controller 40 is electrically connected to the booster pump 7, the proximity switch 13, the speed regulating electromagnet 17, the atomizing motor 33, and the pressure sensor 39 respectively.

[0023] During specific use, the normal state of the extrusion slide plate 12 is extended. A paint valve is pre-set on the side wall of the paint cylinder 3 to facilitate filling the interior of the paint cylinder 3 below the extrusion slide plate 12 with paint. After the paint inside the paint cylinder 3 contacts the bottom wall of the extrusion slide plate 12, stop adding paint to the interior of the paint cylinder 3 and close the paint valve. The controller 40 controls the booster pump 7 to start. The booster pump 7 pressurizes the interior of the paint cylinder 3 through the booster pipe 8. After the pressure inside the paint cylinder 3 increases, it pushes the extrusion slide plate 12. The extrusion slide plate 12 slides upward along the inner wall of the paint cylinder 3 through the deformation of the speed regulating spring 11. The extrusion slide plate 12 drives the induction block 14 to fit with the top wall of the paint cylinder 3. The controller 40 controls the pressure sensor 39 to monitor the pressure inside the paint cylinder 3 in real time. When the pressure inside the paint cylinder 3 reaches the requirement of the operator, stop pressurizing the interior of the paint cylinder 3. At this time, the controller 40 controls the proximity switch 13 to start. The proximity switch 13 senses the induction block 14 to complete the pressure charging operation of the paint. The operator picks up the spraying gun 24 to spray the steel beam. After the paint is released from the paint cylinder 3, the pressure will decrease. The extrusion thrust on the extrusion slide plate 12 will decrease. The speed-regulating spring 11 elastically resets to push the extrusion slide plate 12. The extrusion slide plate 12 sucks outside air into the inner end of the paint cylinder 3 near the air collecting box 27 through the one-way intake valve 30. The extrusion slide plate 12 drives the induction block 14 away from the proximity switch 13. The proximity switch 13 cannot sense the induction block 14. Subsequently, the controller 40 controls the booster pump 7 to start. The booster pump 7 pressurizes the interior of the paint cylinder 3 through the booster pipe 8. The pressure at the bottom of the paint cylinder 3 increases. The extrusion slide plate 12 slides upward again by using the deformation of the speed-regulating spring 11. The extrusion slide plate 12 drives the induction block 14 close to the proximity switch 13. The proximity switch 13 senses the induction block 14. When the extrusion slide plate 12 slides upward, the extrusion slide plate 12 squeezes the air in the upper part of the paint cylinder 3 into the air collecting box 27 through the air collecting pipe 29. The pressure inside the air collecting box 27 increases; During the process of the extrusion slide plate 12 sliding up and down along the inner wall of the paint cylinder 3 as the pressure changes, since the spiral column 19 and the spiral disc 20 are engaged with each other through internal and external spiral threads, when the extrusion slide plate 12 moves, it drives the spiral disc 20 to rotate through the spiral column 19. The spiral disc 20 drives the stirring rod 21 to stir the paint inside the paint cylinder 3, breaking the agglomerated solid particles inside the paint and reducing the probability of the paint clogging the nozzle; The controller 40 controls the speed-regulating electromagnet 17 to start. The speed-regulating electromagnet 17 generates magnetism when powered on. The speed-regulating electromagnet 17 magnetically adsorbs the speed-regulating metal rod 16. When the extrusion slide plate 12 drives the speed-regulating metal rod 16 to descend, it is subject to the magnetic adsorption resistance from the speed-regulating electromagnet 17, thereby slowing down the descending speed of the extrusion slide plate 12. By delaying the sliding speed of the extrusion slide plate 12, the discharge speed of the paint is controlled. For paints with higher viscosity, stable pressure output ensures the consistency of the spraying effect; The pressure relief threshold of the pressure relief valve 36 is preset. During the process of paint spraying, it is necessary to continuously pressurize the paint inside the paint cylinder 3 to ensure that the spraying pressure of the paint remains consistent. The extrusion slide plate 12 continuously transports gas into the air collecting box 27 within a reasonable range of change of the internal pressure of the paint. The controller 40 controls the atomization motor 33 to start. The atomization motor 33 pumps the water inside the water tank 32 through the water extraction end. The water inside the water tank 32 is atomized by the atomization motor 33 and then transported into the atomization pipe 34. The atomization pipe 34 transports the water mist into the air collecting box 27, thereby increasing the air humidity inside the air collecting box 27. As the spraying operation lasts for a long time, it is necessary to replace the nozzle to avoid the nozzle being blocked and affecting the spraying effect. The replaced nozzle is screwed into the end of the pressure relief valve 36 far from the air collecting box 27, which is convenient for cleaning the nozzle before the paint inside it solidifies; When the pressure inside the gas collecting box 27 reaches the preset threshold of the pressure relief valve 36, the pressure relief valve 36 is turned on, and the gas containing water mist inside the gas collecting box 27 flushes the nozzle through the pressure relief valve 36. The gas after passing through the nozzle enters the adsorption cotton layer 38, and the adsorption cotton layer 38 collects the sewage containing paint, so that the nozzle can be replaced regularly, reducing the probability of nozzle blockage, and further ensuring the anti-rust spraying quality of the steel beam; just repeat the above operation during the next use.

[0024] It should be noted that in this article, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the term "comprising", "including" or any other variant thereof is intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements not only includes those elements, but also includes other elements not expressly listed, or also includes elements inherent to such process, method, article or device.

[0025] The above describes the present solution and its implementation manner, and this description is not restrictive. What is shown in the drawings is only one of the implementation manners of the present solution, and the actual structure is not limited thereto. All in all, if those of ordinary skill in the art are inspired by it and design similar structural manners and embodiments without creative work without departing from the creative purpose of the present solution, they shall fall within the protection scope of the present solution.

Claims

1. A spraying device for spraying anti-rust paint on building steel beams, comprising a mobile vehicle, a push frame and a paint barrel, characterized in that: It also includes a speed-adjustable pressure spraying mechanism and a pressure-collecting type cleaning spraying mechanism. The push frame is arranged on one side of the mobile vehicle, and the paint barrel is arranged on the upper wall of the mobile vehicle. The speed-regulating pressure spraying mechanism comprises a charging mechanism, a body expansion mechanism, a speed regulating mechanism, a stirring mechanism and a spraying mechanism; The charging mechanism is arranged on the side of the paint barrel away from the push frame, the expanding mechanism is arranged on the upper wall of the paint barrel, the speed regulating mechanism is arranged on the side wall of the expanding mechanism, the stirring mechanism is arranged on the bottom wall of the speed regulating mechanism, and the spraying mechanism is arranged on the side of the paint barrel close to the push frame; The pressure-collecting type cleaning and spraying mechanism comprises an air collecting mechanism, an atomizing mechanism and a spraying and discharging mechanism; The air collecting mechanism is arranged on the upper wall of the paint cylinder, the atomizing mechanism is arranged on the upper wall of the charging mechanism, and the spraying mechanism is arranged on the side wall of the air collecting mechanism; The expansion mechanism includes a speed regulating sleeve, a speed regulating spring, an extrusion slide plate, a proximity switch and a sensing block; The speed regulating sleeve is connected to the upper wall of the paint cylinder, the extrusion slide is slidably arranged on the inner wall of the paint cylinder, the speed regulating spring is arranged between the speed regulating sleeve and the extrusion slide, a plurality of groups of proximity switches are arranged through the upper wall of the paint cylinder, and the sensing block is arranged on the upper wall of the extrusion slide below the proximity switch.

2. A spraying device for spraying anti-rust paint on building steel beams according to claim 1, characterized in that: The charging mechanism includes a pressure seat, a booster pump and a booster pipe. The pressure seat is arranged on a side of the paint barrel away from the push frame, the booster pump is arranged on the inner wall of one end of the pressure seat away from the paint barrel, and the booster pipe is connected between the power end of the booster pump and the bottom of the paint barrel.

3. A spraying device for spraying anti-rust paint on building steel beams according to claim 1, characterized in that: The speed regulating mechanism comprises a speed regulating metal rod and a speed regulating electromagnet. A plurality of groups of the speed regulating metal rods penetrate the paint cylinder and are arranged on the upper wall of the extrusion slide plate. The speed regulating electromagnet is arranged on the side wall of the speed regulating sleeve.

4. A spraying device for spraying anti-rust paint on building steel beams according to claim 1, characterized in that: The stirring mechanism includes a spiral column, a spiral disc and a stirring rod. The spiral disc is rotatably arranged on the bottom wall of the paint cylinder, and multiple groups of stirring rods are arranged on the side wall of the spiral disc. The spiral column is arranged on the bottom wall of the extrusion slide. One end of the spiral column away from the extrusion slide is arranged inside the spiral disc, and the spiral column is engaged with the spiral disc through a thread.

5. The spraying device for spraying anti-rust paint on building steel beams according to claim 1, characterized in that: The spraying mechanism comprises a high-pressure hose and a spraying gun. The high-pressure hose is connected to the bottom wall of one end of the paint barrel close to the push frame, and the spraying gun is arranged at one end of the high-pressure hose away from the paint barrel.

6. A spraying device for spraying anti-rust paint on building steel beams according to claim 1, characterized in that: The air collecting mechanism includes an air collecting box, a one-way air outlet valve, an air collecting pipe and a one-way air inlet valve. The air collecting box is arranged on the outside of the speed regulating sleeve, and the end of the speed regulating metal rod away from the extrusion slide is penetrated and arranged inside the air collecting box. Multiple groups of the one-way air outlet valves are connected and arranged on the upper wall of the paint cylinder, the air collecting pipes are connected and arranged between the one-way air outlet valve and the air collecting box, and multiple groups of the one-way air inlet valves are connected and arranged on the upper wall of the air collecting box on one side of the one-way air outlet valve.

7. The spraying device for anti-rust paint spraying of building steel beams according to claim 2 is characterized in that: The atomization mechanism includes a water tank, an atomization motor and an atomization pipe. The water tank is arranged on the upper wall of the pressure seat, the atomization motor is arranged on the upper wall of the water tank, the water pumping end of the atomization motor is arranged through the inside of the water tank, and the atomization pipe is connected between the mist exhaust end of the atomization motor and the air collecting box.

8. The spraying device for anti-rust paint spraying of building steel beams according to claim 6 is characterized in that: The spray mechanism includes a pressure relief valve, an interception frame and an adsorption cotton layer. Multiple groups of pressure relief valves are connected and arranged on the side wall of the air collecting box. The interception frame is arranged on the side of the air collecting box close to the pressure relief valve, and the adsorption cotton layer is arranged on the side of the interception frame close to the pressure relief valve.

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