Spraying equipment for road and bridge construction

Abstract

The invention discloses spraying equipment for road and bridge construction, and relates to the technical field of road and bridge construction.The spraying equipment comprises the spraying equipment, a heating bin is fixedly connected into the spraying equipment, a stirring bin is fixedly connected to the bottom end of the heating bin, a stirring rod is rotatably connected into the stirring bin, and a second gear is fixedly connected to the top end of the stirring rod; a heating pipe is arranged at the bottom end of the stirring rod and communicates with the interior of the stirring rod, the rubber pipe is close to the far end of the heating pipe to form a main air pipe extending out of the spraying equipment, and a spraying structure is fixedly connected to the end, away from the spraying equipment, of the main air pipe. Air is preheated through a heating pipe in the heating bin, a rear exhaust outlet releases rectangular heat flow to dry a sprayed area in time, an operator moves equipment through a handle to achieve synchronous spraying and drying operation, and the problems of coating condensation and spraying hole blockage in the low-temperature and high-humidity environment are solved through the structure; and meanwhile, the coating proportioning efficiency and the spraying continuity are optimized.

Description

Technical Field

[0001] The invention relates to the technical field of road and bridge construction, in particular to spraying equipment for road and bridge construction. Background Art

[0002] As a link of transportation, bridges play a vital role in the construction of modern transportation networks. The service life of bridges is generally 100-120 years. Steel box girders are widely used in bridges due to their fast construction and strong load-bearing capacity. The coating quality of steel box girders is an important consideration for bridge construction, maintenance and use. Spraying is a coating method that uses a spray gun or a disc atomizer to disperse into uniform and fine droplets with the help of pressure or centrifugal force and apply it to the surface of the object to be coated. It can be divided into air spraying, airless spraying, electrostatic spraying and various derivative methods of the above basic spraying forms, such as large-flow low-pressure atomization spraying, thermal spraying, automatic spraying, multi-group spraying, etc. Spraying operations have high production efficiency and are suitable for manual operations and industrial automation production. They also play a certain role in road maintenance, such as spraying anti-corrosion coatings on the surface of concrete piers and beams to prevent carbonization and chloride ion penetration and protect internal steel bars.

[0003] Most of the spraying equipment for road and bridge construction in the prior art has the following problems during use: 1. When the ambient temperature is low, the viscosity of the anti-corrosion coating increases significantly, resulting in a decrease in its fluidity, making it difficult to spray the coating. At the same time, low temperatures will delay the curing reaction of the coating and affect the film-forming quality of the coating. In addition, when constructing in closed spaces such as the bottom of a bridge, due to the high air humidity, a condensed water film is easily formed on the surface of the substrate, which reduces the adhesion of the coating and even causes defects such as sagging and bubbling, which seriously affects the construction efficiency and the protective effect of the coating.

[0004] 2. The ratio of anti-corrosion coating needs to be dynamically adjusted according to the on-site temperature, humidity and construction conditions, and needs to be fully stirred to ensure uniform mixing. This process is time-consuming and reduces the overall spraying efficiency.

[0005] 3. After the spraying operation is completed, the nozzle is easily clogged due to the solidification of the paint, and needs to be disassembled and cleaned every day, which increases the maintenance cost. In addition, the precision parts of the spraying equipment are operated in a dusty environment for a long time, and the failure rate increases significantly, further affecting the construction progress. Summary of the invention

[0006] Based on this, the purpose of the present invention is to provide a spraying equipment for road and bridge construction to solve the technical problems that most spraying equipment for road and bridge construction has low temperature and high humidity affecting paint spraying, time-consuming ratio adjustment, easy clogging of nozzles and high equipment failure rate.

[0007] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a spraying device for road and bridge construction, comprising a spraying device, wherein a heating bin is fixedly connected inside the spraying device, a stirring bin is fixedly connected to the bottom end of the heating bin, a stirring rod is rotatably connected inside the stirring bin, a second gear is fixedly connected to the top end of the stirring rod, a first motor is fixedly connected inside the spraying device, an output end of the first motor is fixedly connected to a first water pump via a coupling, two sets of extraction pipes are fixedly connected to the input end of the first water pump, and an output end of the first water pump is connected to the stirring bin via a water pipe. Inside the mixing bin, a second motor is fixedly connected to the spraying equipment, an output end of the second motor is fixedly connected to a second water pump via a coupling, an input end of the second water pump passes through a water pipe to the inside of the mixing bin, an output end of the second water pump is connected to a rubber tube, and the interface is sealed, a heating tube is fixedly connected to the bottom end of the stirring rod, a heating tube is provided at the bottom end of the stirring rod, and the heating tube is connected to the inside of the stirring rod, the far ends of the rubber tube and the heating tube are close to each other to form a main air pipe extending to the outside of the spraying equipment, and a spraying structure is fixedly connected to one end of the main air pipe away from the spraying equipment.

[0008] By adopting the above technical solution, the exhaust blades are synchronously driven by the belt on the outside of the pulley, so that the exhaust blades rotate at high speed, thereby extracting the warm air in the heating chamber, and passing through the heating pipe and the main air pipe, and discharged from the exhaust pipe arranged in the spraying equipment, thereby heating the multiple groups of spray heads, so as to prevent the spray holes of the spray heads from being blocked by the solidified paint sprayed last time during the subsequent spraying work, affecting the subsequent spraying efficiency. When the preheating is completed, the spray holes of the spray heads are fully opened, and the electric push rod is used to make the fixed gear drive the multiple groups of spray heads to rotate vertically.

[0009] Furthermore, the spraying structure includes a spray head, an exhaust pipe, a fixed gear, a tooth plate, an electric push rod and a shell, the spray head is rotatably connected to the inside of the shell, the exhaust pipe is rotatably connected to the inside of the shell, the two sets of fixed gears are respectively fixedly connected to the spray head and one end of the exhaust pipe, the tooth plate is slidably connected to one end of the shell, the electric push rod is fixedly connected to the bottom end of the shell, and the shell is fixedly connected to the top of the main air pipe.

[0010] By adopting the above technical solution, paint is first added into the two groups of storage cavities set on the back of the main body, and then the paint to be extracted is set through the control device, and then the first motor is started so that the output end of the first motor can drive the impeller in the first water pump to rotate at a high speed, thereby extracting the paint in the two groups of storage cavities set at one end of the main body.

[0011] Furthermore, the outer teeth of the fixed gear are meshed with the tooth grooves of the tooth plate, the output end of the electric push rod is fixedly connected to the tooth plate, an exhaust blade is arranged inside the stirring rod, the output end of the second motor is fixedly connected to a pulley through a coupling, the pulley arranged on the outer side of the output end of the second motor rotates synchronously with the exhaust blade through a belt, the top end of the stirring rod is fixedly connected to a second gear, the output end of the first motor is fixedly connected to a first gear through a coupling, and the second gear and the first gear are connected by a toothed belt.

[0012] By adopting the above technical solution, while extracting, the throttle valve arranged in the extraction pipe controls the extraction flow rate, so as to achieve accurate control of the paint and prevent the flow rates of the two groups of paint from being uncontrolled, thereby preventing accurate stirring and mixing. When the two groups of quantitative paints are pumped into the mixing chamber by the first water pump, the stirring rod in the mixing chamber will be driven by the second gear arranged at the top thereof, because the toothed belt arranged on the outer side of the second gear is in contact with the first gear, and the first gear is fixed to the output end of the first motor.

[0013] Furthermore, a trolley is fixedly connected to the bottom end of the spraying equipment, a cavity matching the heating bin is opened inside the trolley, a plurality of through holes are opened at the bottom end of the heating bin, a handle matching the spraying structure is arranged on the outside of the main air pipe, two groups of storage cavities are arranged at one end of the spraying equipment, a drawing pipe is arranged inside the storage cavity, and the drawing pipe is fixedly connected to the first water pump, a stirring rod located inside the stirring bin is fixedly connected to the bottom end of the second gear, and the second motor and the first motor are fixed to the inside of the spraying equipment by screws.

[0014] By adopting the above technical solution, by starting the second motor, the second motor drives the second water pump at its output end to rotate at high speed through the coupling, and is connected to the mixing bin through the output end of the second water pump, the mixed paint inside the mixing bin can be pumped into the rubber tube through the second water pump, and while the second motor is rotating, the exhaust blades are also rotating synchronously, so as to extract the hot air in the heating bin and draw it into the heating pipe, and then mainly pass through the main air pipe composed of the heating pipe and the rubber pipe, and while flowing in the main air pipe, due to the special shape of the main air pipe, the hot air in the heating pipe will continue to keep the paint in the rubber tube warm, and will not cause the paint in the rubber tube to be cooled by the external cold air.

[0015] In summary, the present invention mainly has the following beneficial effects: the present invention preheats the air through the heating pipe in the heating bin, and when the temperature reaches the standard, the second motor is started to drive the exhaust blade, and the hot air is transported to the exhaust port through the main air pipe, and the injection head is continuously heated to prevent the paint from solidifying and clogging. After the preheating is completed, the injection head is opened vertically, and the staff injects the paint into the storage bin. The first motor drives the water pump to quantitatively extract two groups of paint, and the flow is controlled by the throttle valve to ensure the accurate mixing ratio. The stirring rod driven by the gear in the stirring bin slowly stirs the paint, and at the same time, the heating pipe in the heating bin is driven by the side The wall conducts heat evenly to the mixing chamber to keep the paint at an appropriate temperature. After mixing is completed, the second motor synchronously drives the water pump and the exhaust blades to pump the paint to the injection mechanism through the thermal insulation rubber tube. The hot air maintains the fluidity of the paint through the main air pipe. During spraying, multiple groups of nozzles spray evenly on the bottom of the bridge. The rear exhaust port releases a rectangular heat flow to instantly dry the sprayed area. The operator moves the equipment with the handle to achieve simultaneous spraying and drying. This structure solves the problems of paint condensation and spray hole clogging in low temperature and high humidity environments, and at the same time optimizes the paint mixing efficiency and spraying continuity. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the overall structure of the present invention from a first viewing angle; Figure 2 It is a schematic diagram of the overall structure of the present invention from a first viewing angle; Figure 3 It is a partial structural schematic diagram of the present invention; Figure 4 For the present invention Figure 3 A magnified image of point A; Figure 5 It is a schematic diagram of the internal structure of the present invention; Figure 6 For the present invention Figure 5 The enlarged view of point B; Figure 7 It is a schematic diagram of the local structure of the present invention from a first viewing angle; Figure 8 For the present invention Figure 7 Enlarged view of point C; Fig. 9 It is a schematic diagram of a local structure of the present invention from a second viewing angle; Fig.10 For the present invention Fig. 9 The enlarged view of point D; Fig.11 It is a partial structural schematic diagram of the present invention.

[0017] In the figure: 1. spraying equipment; 2. cart; 3. main air pipe; 4. storage chamber; 5. spraying structure; 501. spray head; 502. exhaust pipe; 503. fixed gear; 504. gear plate; 505. electric push rod; 506. shell; 6. toothed belt; 7. first gear; 8. second gear; 9. first water pump; 10. first motor; 11. stirring rod; 12. heating pipe; 13. second motor; 14. heating pipe; 15. rubber pipe; 16. second water pump; 17. exhaust blade; 18. cavity; 19. heating chamber; 20. stirring chamber; 21. extraction pipe; 22. throttle valve; 23. belt. DETAILED DESCRIPTION

[0018] The following will be combined with the accompanying drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention.

[0019] The following describes an embodiment of the present invention based on its overall structure.

[0020] A spraying equipment for road and bridge construction, such as Figure 1-Figure 11As shown, it includes a spraying device 1, a heating bin 19 is fixedly connected inside the spraying device 1, a stirring bin 20 is fixedly connected to the bottom end of the heating bin 19, a stirring rod 11 is rotatably connected inside the stirring bin 20, a second gear 8 is fixedly connected to the top of the stirring rod 11, a first motor 10 is fixedly connected inside the spraying device 1, an output end of the first motor 10 is fixedly connected to a first water pump 9 through a coupling, two groups of pumping pipes 21 are fixedly connected to the input end of the first water pump 9, the output end of the first water pump 9 is connected to the inside of the stirring bin 20 through a water pipe, a second motor 13 is fixedly connected inside the spraying device 1, an output end of the second motor 13 is fixedly connected to a second water pump 16 through a coupling, an input end of the second water pump 16 is connected to the inside of the stirring bin 20 through a water pipe, an output end of the second water pump 16 is connected to the inside of the stirring bin 20 through a water pipe, an output end of the second water pump 16 is connected to the rubber tube 15, and the interface is sealed, a heating pipe 12 is fixedly connected to the bottom end of the stirring rod 11, a heating pipe 14 is provided at the bottom end of the stirring rod 11, and the heating pipe 14 is connected to the inside of the stirring rod 11 The rubber tube 15 and the heating tube 14 are close to each other at the far end to form a main air pipe 3 extending outside the spraying equipment 1. The main air pipe 3 is fixedly connected to the spraying structure 5 at one end away from the spraying equipment 1. By starting the second motor 13, the second motor 13 drives the second water pump 16 at its output end to rotate at high speed through the coupling, and the output end of the second water pump 16 is connected to the mixing chamber 20, so that the paint stirred in the mixing chamber 20 can be pumped into the rubber tube 15 through the second water pump 16. When the second motor 13 rotates, the exhaust blades 17 also rotate synchronously, so as to extract the hot air in the heating chamber 19 and draw it into the heating tube 12, and then it will mainly pass through the main air pipe 3 composed of the heating tube 12 and the rubber tube 15. When flowing in the main air pipe 3, due to the special shape of the main air pipe 3, the hot air in the heating tube 12 will continue to keep the paint in the rubber tube 15 warm, and will not cause the paint in the rubber tube 15 to be cooled by the external cold air. Exemplarily, the spraying structure 5 includes a spray head 501, an exhaust pipe 502, a fixed gear 503, a tooth plate 504, an electric push rod 505 and a shell 506, wherein the spray head 501 is rotatably connected to the inside of the shell 506, the exhaust pipe 502 is rotatably connected to the inside of the shell 506, two sets of fixed gears 503 are respectively fixedly connected to the spray head 501 and one end of the exhaust pipe 502, the tooth plate 504 is slidably connected to one end of the shell 506, the electric push rod 505 is fixedly connected to the bottom end of the shell 506, and the shell 506 is fixedly connected to the top end of the main air pipe 3, wherein the exhaust blades are coupled to the exhaust blades through the belt 23 on the outside of the pulley The blade 17 is synchronously driven to make the exhaust blade 17 rotate at a high speed, so as to extract the warm air in the heating chamber 19, and pass through the heating pipe 14 and the main air pipe 3, and be discharged from the exhaust pipe 502 provided in the spraying equipment 1, so as to heat the multiple groups of spray heads 501, so as to prevent the spray holes of the spray heads 501 from being blocked by the solidified paint sprayed last time and affecting the subsequent spraying efficiency during the subsequent spraying work. When the preheating is completed, the spray holes of the spray heads 501 are fully opened, and the electric push rod 505 is used to make the fixed gear 503 drive the multiple groups of spray heads 501 to rotate and present verticality; Exemplarily, the outer teeth of the fixed gear 503 are meshed with the tooth grooves of the tooth plate 504, the output end of the electric push rod 505 is fixedly connected to the tooth plate 504, an exhaust blade 17 is arranged inside the stirring rod 11, the output end of the second motor 13 is fixedly connected to a pulley through a coupling, the pulley arranged on the outer side of the output end of the second motor 13 rotates synchronously with the exhaust blade 17 through a belt 23, a second gear 8 is fixedly connected to the top of the stirring rod 11, and the output end of the first motor 10 is fixedly connected to the first gear 7 through a coupling, and the second gear 8 and the first gear 7 are connected by a toothed belt 6 for transmission, wherein, paint is first added to the two groups of storage chambers 4 arranged on the back of the main body, and then the control device is used to set the paint to be extracted, and then the first motor 10 is started, so that the output end of the first motor 10 can drive the impeller in the first water pump 9 to rotate at high speed, thereby extracting the paint in the two groups of storage chambers 4 arranged at one end of the main body.

[0021] The working principle of the present invention is as follows: when in use, the power is turned on, and an outside person starts the heating tube 12 in the heating chamber 19 inside the spraying equipment 1 through the control device, so that the heating tube 12 heats the hot air in the heating chamber 19. When the appropriate temperature is reached, the second motor 13 is started, and the second motor 13 rotates at a high speed, so that it drives the pulley fixed on the coupling to rotate; The belt 23 on the outer side of the pulley synchronously drives the exhaust blade 17, so that the exhaust blade 17 rotates at a high speed, thereby extracting the warm air in the heating chamber 19, and passing through the heating pipe 14 and the main air pipe 3, and discharged from the exhaust pipe 502 set in the spraying equipment 1, so as to heat the multiple groups of injection heads 501, so as to prevent the injection holes of the injection heads 501 from being blocked by the solidified paint sprayed last time and affecting the subsequent spraying efficiency during the subsequent spraying work. When the preheating is completed, the injection holes of the injection heads 501 are fully opened, and the electric push rod 505 is used to make the fixed gear 503 drive the multiple groups of injection heads 501 to rotate and present verticality; Then the staff starts to put the paint into the two groups of storage chambers 4 set on the back of the main body, and then uses the control device to set the paint to be extracted, and then starts the first motor 10 so that the output end of the first motor 10 can drive the impeller in the first water pump 9 to rotate at a high speed, thereby extracting the paint in the two groups of storage chambers 4 set at one end of the main body; While extracting, the throttle valve 22 provided in the extraction pipe 21 is used to control the flow rate of extraction, so as to accurately control the coating and prevent the flow rates of the two groups of coating from being uncontrolled, thereby failing to accurately stir and mix; When two groups of quantitative paint are pumped into the mixing chamber 20 by the first water pump 9, the mixing rod 11 in the mixing chamber 20 will be driven by the second gear 8 arranged at the top thereof, because the toothed belt 6 arranged outside the second gear 8 fits with the first gear 7, and the first gear 7 is fixed on the output end of the first motor 10; Therefore, the stirring rod 11 will stir synchronously, and when the paint in the stirring chamber 20 is slowly stirred by the stirring rod 11, the heating tube 12 located at the bottom of the heating chamber 19 will also be heated to a certain degree, thereby significantly increasing the temperature in the heating chamber 19, and heating the paint through the fitted side walls. Also, due to the groove design of the heating chamber 19, the paint in the stirring chamber 20 will be evenly heated, and the temperature will not exceed the specified range; Then, by starting the second motor 13, the second motor 13 drives the second water pump 16 at its output end to rotate at high speed through the coupling, and the output end of the second water pump 16 is connected to the mixing chamber 20, so that the paint mixed in the mixing chamber 20 can be pumped into the rubber tube 15 through the second water pump 16, and while the second motor 13 is rotating, the exhaust blades 17 are also rotating synchronously, so as to extract the hot air in the heating chamber 19 and draw it into the heating pipe 12, and then mainly pass through the main air pipe 3 composed of the heating pipe 12 and the rubber pipe 15, and while flowing in the main air pipe 3, due to the special shape of the main air pipe 3, the hot air in the heating pipe 12 will continue to keep the paint in the rubber pipe 15 warm, and will not cause the paint in the rubber pipe 15 to be cooled by the external cold air; When reaching the spraying structure 5, the bottom of the bridge can be sprayed through the multiple groups of spray heads 501 arranged inside, and the exhaust pipe 502 connected to the heating pipe 12 will spray the hot air in a rectangular shape, which is convenient for the staff to dry the area sprayed in front. The staff can control the movement of the spraying structure 5 by holding the handle arranged on the outside of the main air pipe 3, so that the multiple groups of spray heads 501 of the spraying structure 5 are in front and the exhaust pipe 502 connected to the heating chamber 19 is in the back for drying; Through the above structure, the road and bridge construction spraying equipment 1 can spray paint even under the influence of low temperature and high humidity, the spraying ratio can be adjusted during the time period, and the injection head 501 is not easily blocked.

[0022] Although an embodiment of the present invention has been shown and described, this specific embodiment is merely an explanation of the present invention and is not a limitation of the invention. The specific features, structures, materials or characteristics described may be combined in a suitable manner in any one or more embodiments or examples. After reading this specification, those skilled in the art may make modifications, substitutions and variations to the embodiments without creative contributions as needed without departing from the principles and purpose of the present invention. However, as long as they are within the scope of the claims of the present invention, they are protected by patent law.

Claims

1. A spraying device for road and bridge construction, comprising a spraying device (1), characterized in that: The spraying device (1) is fixedly connected to a heating chamber (19) inside, the bottom end of the heating chamber (19) is fixedly connected to a stirring chamber (20), the stirring chamber (20) is rotatably connected to a stirring rod (11), the top end of the stirring rod (11) is fixedly connected to a second gear (8), the spraying device (1) is fixedly connected to a first motor (10), the output end of the first motor (10) is fixedly connected to a first water pump (9) via a coupling, the input end of the first water pump (9) is respectively fixedly connected to two groups of extraction pipes (21), the output end of the first water pump (9) is connected to the stirring chamber (20) via a water pipe, the spraying device (1) is fixedly connected to a second motor (13), the output end of the first water pump (9) is fixedly connected to the inside of the stirring chamber (20) via a water pipe, The output end of the second motor (13) is fixedly connected to a second water pump (16) via a coupling; the input end of the second water pump (16) penetrates into the interior of the stirring chamber (20) via a water pipe; the output end of the second water pump (16) is connected to a rubber tube (15), and the interface is sealed; the bottom end of the stirring rod (11) is fixedly connected to a heating tube (12); a heating tube (14) is provided at the bottom end of the stirring rod (11), and the heating tube (14) is connected to the interior of the stirring rod (11); the far ends of the rubber tube (15) and the heating tube (14) are close to each other to form a main air pipe (3) extending to the outside of the spraying device (1); and the end of the main air pipe (3) away from the spraying device (1) is fixedly connected to a spraying structure (5).

2. A spraying equipment for road and bridge construction according to claim 1, characterized in that: The spraying structure (5) comprises a spray head (501), an exhaust pipe (502), a fixed gear (503), a tooth plate (504), an electric push rod (505) and a shell (506); the spray head (501) is rotatably connected to the inside of the shell (506); the exhaust pipe (502) is rotatably connected to the inside of the shell (506); the two sets of fixed gears (503) are respectively fixedly connected to the spray head (501) and one end of the exhaust pipe (502); the tooth plate (504) is slidably connected to one end of the shell (506); the electric push rod (505) is fixedly connected to the bottom end of the shell (506); and the shell (506) is fixedly connected to the top end of the main air pipe (3).

3. A spraying equipment for road and bridge construction according to claim 2, characterized in that: The outer teeth of the fixed gear (503) mesh with the tooth grooves of the tooth plate (504), and the output end of the electric push rod (505) is fixedly connected to the tooth plate (504).

4. The spraying equipment for road and bridge construction according to claim 1 is characterized in that: An exhaust blade (17) is arranged inside the stirring rod (11); the output end of the second motor (13) is fixedly connected to a belt pulley via a coupling; the belt pulley arranged outside the output end of the second motor (13) rotates synchronously with the exhaust blade (17) via a belt (23).

5. The spraying equipment for road and bridge construction according to claim 1 is characterized in that: The top end of the stirring rod (11) is fixedly connected to a second gear (8), the output end of the first motor (10) is fixedly connected to a first gear (7) via a coupling, and the second gear (8) and the first gear (7) are transmission-connected via a toothed belt (6).

6. The spraying equipment for road and bridge construction according to claim 1, characterized in that: The bottom end of the spraying equipment (1) is fixedly connected to a trolley (2), and a cavity (18) matching with a heating chamber (19) is provided inside the trolley (2).

7. The spraying equipment for road and bridge construction according to claim 1 is characterized in that: The bottom end of the heating chamber (19) is provided with a plurality of through holes, and the outside of the main air pipe (3) is provided with a handle that matches the spraying structure (5).

8. The spraying equipment for road and bridge construction according to claim 1, characterized in that: Two groups of material storage chambers (4) are provided at one end of the spraying device (1), a material extraction pipe (21) is provided inside the material storage chamber (4), and the material extraction pipe (21) is fixedly connected to the first water pump (9).

9. The spraying equipment for road and bridge construction according to claim 1, characterized in that: The bottom end of the second gear (8) is fixedly connected to a stirring rod (11) located inside the stirring chamber (20), and the second motor (13) and the first motor (10) are fixed inside the spraying equipment (1) by screws.

Images