A spraying device for processing a magnesium alloy basket of an electric vehicle

Abstract

The present invention relates to the technical field of spraying processing, and specifically relates to a spraying device for processing the magnesium alloy basket of an electric vehicle. The spraying device includes a spray gun. A paint spraying bottle is threadedly connected to the upper end of the spray gun. A first mating pipe is further fixedly connected to the outer wall of the spray gun. A first installation inner pipe is further fixedly connected inside the first mating pipe. Water is filled between the first installation inner pipe and the first mating pipe. A heating mechanism is fixedly installed inside the first installation inner pipe. A connecting inner pipe is further fixedly connected to the inner wall of the second mating pipe. A high-pressure air pump is further arranged on the right side of the spray gun. When the spray gun sprays the magnesium alloy basket of the electric vehicle, the gas can be heated, so that the sprayed paint driven out is also heated. The activity of the heated paint molecules is enhanced, and the paint can be tightly attached to the surface of the basket. Compared with the unheated paint, the adhesion is greatly improved, effectively reducing the paint peeling problem in subsequent use, improving the paint surface quality and durability of the basket, and providing a better surface treatment method for the production of electric vehicles.

Description

Technical Field

[0001] The present invention relates to the technical field of spraying processing, and specifically relates to a spraying device for processing magnesium alloy baskets of electric vehicles. Background Art

[0002] During the processing of magnesium alloy baskets of electric vehicles, surface spraying is a key process, and its quality directly affects the aesthetics, corrosion resistance, and service life of the baskets;

[0003] Traditional spraying devices often simply spray paint on the surface of the basket at room temperature. However, magnesium alloy materials have their unique surface characteristics, and the adhesion of paint sprayed at room temperature is limited, and problems such as peeling and paint loss are likely to occur during subsequent use. This not only affects the appearance of the product but also reduces its protective performance. Moreover, with the continuous improvement of product quality requirements and the intensification of market competition, there is an urgent need for a spraying solution that can improve the adhesion of paint;

[0004] At the same time, after the spray gun is used, a large amount of paint will remain inside. If it is not cleaned thoroughly in time, the dried paint will block the nozzle and internal channels of the spray gun, affecting the normal use and spraying effect of the spray gun, reducing production efficiency, increasing maintenance costs and time. The previous cleaning methods were mostly simple solvent wiping or rinsing, which were difficult to completely remove the stubborn paint residues inside the spray gun and might cause certain damage to the spray gun, and were also not environmentally friendly. Therefore, developing a spraying device that can effectively heat the paint to enhance its adhesion to the basket and can use high-temperature hot water to clean the spray gun efficiently and without damage has important practical significance and industrial value for improving the processing quality and production efficiency of magnesium alloy baskets of electric vehicles, reducing production costs and environmental pollution.

[0005] Chinese Patent (Publication No. CN216261607U), this patent discloses a surface spraying device for electric vehicle processing, which relates to the technical field of electric vehicle processing, including a moving box. A storage battery box is fixedly connected inside the moving box. A stirring and feeding assembly is installed below the storage battery box inside the moving box. The stirring and feeding assembly includes a storage tank and a discharge pipeline. A storage tank is fixedly connected below the storage battery box inside the moving box. The beneficial effects of this utility model are as follows: A stirring and feeding assembly is provided, which can cause the situation of uneven density during spraying, improving the aesthetics of spraying. An angle adjustment assembly is provided, improving the spraying coverage area. A drying and heating assembly is provided. After spraying is completed, it can avoid secondary pollution of the sprayed items by dust particles in the air. A storage box, a storage battery box, a solar panel, and universal wheels are provided. The installation of universal wheels realizes convenient movement and meets the usage requirements.

[0006] According to the above solution, when processing the magnesium alloy basket of an electric vehicle, only relying on the drying component to dry the paint cannot heat the paint during spraying, which cannot effectively increase the adhesion between the paint and the basket. Moreover, the inside of the spray gun cannot be cleaned, and the residual paint in the spray gun will lead to a reduction in its efficiency and an increase in maintenance costs, affecting the spraying effect. Therefore, we have designed a spraying device for processing the magnesium alloy basket of an electric vehicle to solve the problems of heating the paint and cleaning the spray gun, improve the quality and efficiency of the spraying process, and meet the needs of industrial development. Summary of the Invention

[0007] The purpose of the present invention is to provide a spraying device for processing the magnesium alloy basket of an electric vehicle to solve the problems raised in the above background technology.

[0008] To achieve the above purpose, the present invention provides the following technical solutions:

[0009] A spraying device for processing the magnesium alloy basket of an electric vehicle includes a spray gun. The upper end of the spray gun is threadedly connected with a paint spraying bottle. The outer wall of the spray gun is also fixedly connected with a first mating pipe. A first installation inner pipe is fixedly connected inside the first mating pipe. Water is filled between the first installation inner pipe and the first mating pipe. A heating mechanism is fixedly installed inside the first installation inner pipe. The end of the first mating pipe away from the spray gun is also fixedly connected with a second mating pipe. A heating ring is fixedly connected inside the second mating pipe. The heating ring can heat the water inside the first installation inner pipe and the first mating pipe. The heated water evaporates into steam and provides steam to the heating mechanism.

[0010] An inner connecting pipe is fixedly connected to the inner wall of the second mating pipe. A high-pressure air pump is arranged on the right side of the spray gun. The air outlet of the high-pressure air pump is fixedly connected with a first connecting pipe respectively. The end of the first connecting pipe away from the high-pressure air pump is fixedly communicated with the inner connecting pipe. A water pumping mechanism for pumping the water between the first mating pipe and the first installation inner pipe is fixedly connected between the second mating pipe and the first connecting pipe, which can flush the internal structure of the spray gun.

[0011] Further, a U-shaped pipe is arranged inside the second mating pipe. The U-shaped pipe is fixedly connected to the outer wall of the heating ring. The U-shaped pipe is communicated with the first installation inner pipe. A pressure relief pipe is fixedly connected to the outer wall of the U-shaped pipe, and the outer wall of the pressure relief pipe passes through the inside of the second mating pipe. A pressure relief valve is installed inside the pressure relief pipe.

[0012] Further, the heating mechanism includes three spherical shells. The three spherical shells are fixedly communicated through pipes. The leftmost spherical shell is fixedly connected with the spray gun. The rightmost spherical shell is fixedly connected with the inner connecting pipe. The spherical shells are fixedly connected inside the first installation inner pipe. A steam pipe is fixedly connected inside the spherical shell. The outer wall of the steam pipe passes through the inside of the first installation inner pipe.

[0013] As a further improvement of this solution, an installation frame is fixedly connected to the bottom of the steam pipe. A rotating wheel is rotatably connected inside the installation frame. Four ventilation openings are formed on the outer wall of the rotating wheel. The upper end of the rotating wheel abuts against the bottom of the steam pipe. One of the ventilation openings is communicated with the steam pipe. An inner ball is further arranged outside the installation frame. A rotating rod is fixedly connected to the outer wall of the rotating wheel. The outer wall of the rotating rod passes through the inside of the spherical shell, the first installation inner pipe and the first fitting pipe. The outer wall of the steam pipe is fixedly connected to the inner ball. The outer wall of the rotating rod is rotatably connected to the inside of the inner ball. A plurality of ventilation holes are further formed on the outer wall of the inner ball.

[0014] As a further improvement of this solution, a ball sleeve is further arranged outside the inner ball. Moving pipes are slidably connected to the outer walls of both the steam pipe and the rotating rod. The inside of the ball sleeve is fixedly connected to the outer walls of the two moving pipes. A plurality of elastic ropes are fixedly connected between the ball sleeve and the inner ball. Three installation round boxes are fixedly connected to the outer wall of the first fitting pipe. The installation round boxes are fixedly connected to the outer wall of the first fitting pipe. Each rotating rod is rotatably connected to the inside of the corresponding installation round box. A rotating circular plate is fixedly connected to the end of the rotating rod away from the rotating wheel. A plurality of fitting grooves are formed in the inner wall of the installation round box. A liquid leakage port with a reset function is fixedly connected to the end of the rotating circular plate close to the rotating rod.

[0015] As a further improvement of this solution, the water pumping mechanism includes a rectangular box. The rectangular box is fixedly connected to the upper end of the second fitting pipe. A water pump is fixedly installed inside the rectangular box. The water outlet of the water pump is fixedly communicated with the outer wall of the first connecting pipe through a second connecting pipe. The outer wall of the second connecting pipe passes through the inside of the rectangular box.

[0016] As a further improvement of this solution, a connecting box is fixedly connected to the outer wall of the first fitting pipe. The water inlet of the water pump is fixedly communicated with the outer wall of the connecting box through a pipeline.

[0017] As a further improvement of this solution, a second installation inner pipe is fixedly communicated with one end of the connecting box close to the first fitting pipe. The second installation inner pipe is located between the first fitting pipe and the first installation inner pipe. The outer wall of the second installation inner pipe abuts against the inner wall of the first fitting pipe. A one-way valve is further fixedly connected inside the first connecting pipe.

[0018] Compared with the prior art, the beneficial effects of the present invention are:

[0019] 1. When the present invention is in use, when the spray gun sprays the magnesium alloy basket of the electric vehicle, the gas can be heated, so that the sprayed paint driven out is also heated. After the heated sprayed paint molecules have enhanced activity, they can adhere tightly to the surface of the basket. Compared with the unheated sprayed paint, the adhesion is greatly improved, effectively reducing the problem of paint peeling in subsequent use, improving the paint surface quality and durability of the basket, and providing a better surface treatment method for the production of electric vehicles.

[0020] 2. When the present invention is in use, through conversion, hot water is extracted and used for cleaning the inside of the spray gun. Such a design can effectively remove the paint dirt remaining in the spray gun after use, prevent it from blocking the internal channels and nozzles of the spray gun, ensure the normal working performance of the spray gun, extend the service life of the spray gun, and at the same time contribute to maintaining a stable and high-quality spraying effect, improving the efficiency and economic benefits of the entire spraying operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is the front view of a spraying device for processing the magnesium alloy basket of an electric vehicle.

[0022] Figure 2 It is the top view of a spraying device for processing the magnesium alloy basket of an electric vehicle.

[0023] Figure 3 It is the schematic structural diagram of the position of the spray gun of a spraying device for processing the magnesium alloy basket of an electric vehicle.

[0024] Figure 4 It is the schematic internal structure diagram of the first installation inner tube in a spraying device for processing the magnesium alloy basket of an electric vehicle.

[0025] Figure 5 It is the schematic internal structure diagram of the second fitting tube in a spraying device for processing the magnesium alloy basket of an electric vehicle.

[0026] Figure 6 It is the schematic internal structure diagram of the first fitting tube in a spraying device for processing the magnesium alloy basket of an electric vehicle.

[0027] Figure 7 It is the schematic structural diagram of the position of the steam pipe in a spraying device for processing the magnesium alloy basket of an electric vehicle.

[0028] Figure 8 It is the schematic internal structure diagram of the installation round box in a spraying device for processing the magnesium alloy basket of an electric vehicle.

[0029] Figure 9 It is the schematic internal structure diagram of the spherical shell in a spraying device for processing the magnesium alloy basket of an electric vehicle.

[0030] Figure 10 It is the schematic internal structure diagram of the spherical sleeve in a spraying device for processing the magnesium alloy basket of an electric vehicle.

[0031] In the figure: 1. Spray gun; 2. First mating pipe; 3. Second mating pipe; 4. Installation round box; 5. Paint spraying bottle; 6. First connecting pipe; 7. Rectangular box; 8. Recycling wheel; 9. Installation base; 10. High-pressure air pump; 11. Pressure gauge; 12. Display panel; 13. First installation inner pipe;

[0032] 14. Connecting inner pipe; 15. U-shaped pipe; 16. Second connecting pipe; 17. Pressure relief pipe; 18. Heating ring; 19. Check valve; 20. Second installation inner pipe; 21. Vent hole; 22. Connecting plate; 23. Liquid leakage port; 24. Fitting groove; 25. Connecting box; 26. Rotating round plate;

[0033] 27. First elastic telescopic rod; 28. Steam pipe; 29. Spherical shell; 30. Elastic cord; 31. Moving pipe; 32. Rotating rod; 33. Drain pipe; 34. Vent hole; 35. Inner sphere; 36. Sphere sleeve; 37. Installation frame; 38. Ventilation port; 39. Rotating wheel; 101. Heating mechanism; 201. Water pumping mechanism. Specific embodiments

[0034] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0035] Embodiment 1: Please refer to Figures 1 to 5, in the embodiment of the present invention, a spraying device for processing a magnesium alloy basket of an electric vehicle includes a spray gun 1. A paint spraying bottle 5 is threadedly connected to the upper end of the spray gun 1. The paint spraying bottle 5 is filled with spraying material. A first fitting pipe 2 is also fixedly connected to the outer wall of the spray gun 1. A water injection port is provided on the outer wall of the first fitting pipe 2, and a rotating cover with a reset function is rotatably connected to the outer wall of the water injection port. A first installation inner pipe 13 is also fixedly connected inside the first fitting pipe 2. Water is filled between the first installation inner pipe 13 and the first fitting pipe 2. A heating mechanism 101 is fixedly installed inside the first installation inner pipe 13. A second fitting pipe 3 is fixedly connected to the end of the first fitting pipe 2 away from the spray gun 1. A heating ring 18 is fixedly connected inside the second fitting pipe 3. The heating ring 18 can heat the water inside the first installation inner pipe 13 and the first fitting pipe 2. The heated and evaporated steam provides steam to the inside of the heating mechanism 101. A connecting inner pipe 14 is also fixedly connected to the inner wall of the second fitting pipe 3. A high-pressure air pump 10 is provided on the right side of the spray gun 1. The air outlet of the high-pressure air pump 10 is fixedly connected to a first connecting pipe 6. An installation base 9 is provided between the spray gun 1 and the high-pressure air pump 10. A plurality of suction cups are fixedly connected to the bottom of the installation base 9. When the suction cups are in contact with the ground and adsorb, they can limit and fix the installation base 9 to prevent shaking and deviation. The upper end of the installation base 9 is rotatably connected to a recovery wheel 8 through a rotating shaft. The first connecting pipe 6 is wound around the outer wall of the recovery wheel 8. The first connecting pipe 6 can be stored by rotating the recovery wheel 8. The end of the first connecting pipe 6 away from the high-pressure air pump 10 is fixedly communicated with the connecting inner pipe 14. A pumping mechanism 201 for pumping the water between the first fitting pipe 2 and the first installation inner pipe 13 is fixedly connected between the second fitting pipe 3 and the first connecting pipe 6. The inside of the spray gun 1 can be flushed through the pumping mechanism 201. A pressure gauge 11 and a display panel 12 are also fixedly installed on the outer wall of the second fitting pipe 3. The display panel 12 can control the high-pressure air pump 10, and the pressure gauge 11 can detect the air pressure between the first fitting pipe 2 and the first installation inner pipe 13.

[0036] Embodiment 2: Please refer to Figure 5 , a U-shaped pipe 15 is provided inside the second fitting pipe 3. The U-shaped pipe 15 is in a "U" shape. Both the upper and lower ends of the U-shaped pipe 15 are fixedly connected to the outer wall of the heating ring 18. The U-shaped pipe 15 is communicated with the first installation inner pipe 13. A pressure relief pipe 17 is also fixedly connected to the outer wall of the U-shaped pipe 15, and the outer wall of the pressure relief pipe 17 passes through the inside of the second fitting pipe 3. A pressure relief valve is installed inside the pressure relief pipe 17. When the heating ring 18 heats the water inside the first fitting pipe 2 and the first installation inner pipe 13, it should be noted that the water is in an unfilled state, and the liquid level of the water cannot be higher than or equal to the pressure relief pipe 17. When the steam pressure between the first fitting pipe 2 and the first installation inner pipe 13 increases, the steam will enter the pressure relief pipe 17 through the U-shaped pipe 15 and then the pressure relief valve will relieve the pressure of the air pressure between the first fitting pipe 2 and the first installation inner pipe 13;

[0037] Please refer to Figure 3 , Figure 4 , Figures 6 to 10 , the heating mechanism 101 includes three spherical shells 29. The three spherical shells 29 are fixedly connected and communicated through pipes. The leftmost spherical shell 29 is fixedly connected to the spray pipe inside the spray gun 1, and the rightmost spherical shell 29 is fixedly connected and communicated with the connecting inner pipe 14. The spherical shell 29 is fixedly connected inside the first installation inner pipe 13. A steam pipe 28 is also fixedly connected inside the spherical shell 29. The outer wall of the steam pipe 28 passes through the inside of the first installation inner pipe 13. The upper end of the steam pipe 28 is located between the first installation inner pipe 13 and the first fitting pipe 2. Two connecting plates 22 are also fixedly connected between the first installation inner pipe 13 and the first fitting pipe 2, and the two connecting plates 22 are symmetrically distributed left and right between the first fitting pipe 2 and the first installation inner pipe 13. The steam pipe 28 is located between the two connecting plates 22. A number of air vents 21 are opened inside each connecting plate 22, and a liquid leakage port 23 is also opened on the outer wall of each connecting plate 22. When the spray gun 1 is in use, the spray gun 1 will drive the first fitting pipe 2 and the first installation inner pipe 13 to shake. The water between the spray gun 1 and the first installation inner pipe 13 may splash into the steam pipe 28. Due to the arrangement of the connecting plates 22 on both sides of the steam pipe 28, the connecting plates 22 will block the water from splashing into the steam pipe 28, but still a small amount of water will pass through the air vents 21 and flow between the two air vents 21. Then, due to gravity, the water will flow from the inside of the liquid leakage port 23 along the outer wall of the first installation inner pipe 13 to between the first fitting pipe 2 and the first installation inner pipe 13, and then converge with other water. A mounting frame 37 is also fixedly connected to the bottom of the steam pipe 28. A round hole is opened at the upper end of the mounting frame 37, and the steam pipe 28 is located in the round hole. A rotating wheel 39 is rotatably connected inside the mounting frame 37 through a rotating shaft. Four air vents 38 are opened on the outer wall of the rotating wheel 39. The four air vents 38 are circularly distributed on the outer wall of the rotating wheel 39 from large to small in sequence. The upper end of the rotating wheel 39 abuts against the bottom of the steam pipe 28. One of the air vents 38 is communicated with the steam pipe 28. An inner sphere 35 is also arranged outside the mounting frame 37. A rotating rod 32 is fixedly connected to the outer wall of the rotating wheel 39. The outer wall of the rotating rod 32 passes through the inside of the spherical shell 29, the first installation inner pipe 13 and the first fitting pipe 2. The outer wall of the steam pipe 28 is fixedly connected to the inner sphere 35. The outer wall of the rotating rod 32 is rotatably connected to the inside of the inner sphere 35. A number of air holes 34 are also opened on the outer wall of the inner sphere 35;

[0038] Outside the inner ball 35, there is also a ball sleeve 36. The ball sleeve 36 is made of rubber material. A moving pipe 31 is slidably connected to the outer walls of both the steam pipe 28 and the rotating rod 32, and the ball sleeve 36 is fixedly connected to the outer walls of the two moving pipes 31. A number of elastic ropes 30 are fixedly connected between the ball sleeve 36 and the inner ball 35, and the elastic ropes 30 are also made of rubber material. The bottom of the ball sleeve 36 is fixedly communicated with a drain pipe 33. An electronic valve is installed inside the drain pipe 33. The outer wall of the drain pipe 33 passes through the first fitting pipe 2 and the inside of the first installation inner pipe 13, and the outer wall of the drain pipe 33 is slidably connected with the inside of the first fitting pipe 2 and the first installation inner pipe 13. Specifically, when the water vapor between the first fitting pipe 2 and the first installation inner pipe 13 enters the inside of the ball sleeve 36 through the steam pipe 28, when the ball sleeve 36 expands, it will drive the two moving pipes 31 to slide on the corresponding outer walls of the steam pipe 28 and the rotating rod 32. Since the main component of water vapor is water, it will condense into water droplets after being cooled and finally converge inside the ball sleeve 36. Excessive water will affect the subsequent use of the ball sleeve 36. And when the ball sleeve 36 expands, the ball sleeve 36 will drive the drain pipe 33 to slide inside the ball shell 29, which will not affect the expansion of the ball sleeve 36. And when it is necessary to drain the water inside the ball sleeve 36, the electronic valve can be controlled to open through the display panel 12. The steam inside the ball sleeve 36 will be discharged through the drain pipe 33, and the water will also be discharged together;

[0039] Three installation round boxes 4 are also fixedly connected to the outer wall of the first fitting pipe 2. When the installation round box 4 is connected to the first fitting pipe 2, the end of the installation round box 4 located inside the first fitting pipe 2 is fixedly connected to the inner wall of the first installation inner pipe 13, that is, the water between the first fitting pipe 2 and the first installation inner pipe 13 will not flow out due to the installation round box 4. The three installation round boxes 4 are arranged in an array from left to right on the outer wall of the first fitting pipe 2. The end of the rotating rod 32 far from the rotating wheel 39 is fixedly connected with a rotating round plate 26. A number of fitting grooves 24 are opened in the inner wall of the installation round box 4. The number of fitting grooves 24 is distributed in a circumferential manner centered on the corresponding rotating rod 32. The end of the rotating round plate 26 close to the rotating rod 32 is fixedly connected with a liquid leakage port 23 with a reset function. The liquid leakage port 23 is fixedly connected to the rotating round plate 26 through a first elastic telescopic rod 27;

[0040] Please refer to Figure 3 、 Figure 5 、 Figure 6The pumping mechanism 201 includes a rectangular box 7, which is fixedly connected to the upper end of the second matching pipe 3. A water pump is fixedly installed inside the rectangular box 7. The water outlet of the water pump is fixedly connected to the outer wall of the first connecting pipe 6 through the second connecting pipe 16, and the outer wall of the second connecting pipe 16 is penetrated into the rectangular box 7. The outer wall of the first matching pipe 2 is fixedly connected to a connecting box 25, and the water inlet of the water pump is fixedly connected to the outer wall of the connecting box 25 through a pipeline. One end of the connecting box 25 close to the first matching pipe 2 is fixedly connected to a second installation inner pipe 20, and the second installation inner pipe 20 is located between the first matching pipe 2 and the first installation inner pipe 13. The outer wall of the second installation inner pipe 20 abuts against the inner wall of the first matching pipe 2. A one-way valve 19 is also fixedly connected to the inside of the first connecting pipe 6, and the one-way valve 19 is located on the right side of the connection between the second connecting pipe 16 and the first connecting pipe 6;

[0041] Specifically, when the water pump pumps water through the connecting box 25 and the second mounting inner tube 20, and then transports water to the inside of the first connecting tube 6 through the second connecting tube 16, at this time, due to the one-way valve 19, the water will be blocked by the one-way valve 19, and then enter the inside of the other ball sleeve 36 through the connecting inner tube 14, and then be discharged from the spray gun 1.

[0042] The working principle of the present invention is:

[0043] When the present invention is used, the heating ring 18 is started, and the heating ring 18 heats the water between the first matching tube 2 and the first installation inner tube 13. When the steam generated by the evaporation of the water enters the steam tube 28, the gas in the steam tube 28 enters the inner ball 35 and then enters the ball sleeve 36 through the air hole 34. At this time, the ball sleeve 36 expands, and all the elastic ropes 30 are stretched and charged. It is worth noting that when the ball sleeve 36 expands to the limit, the gap between the ball sleeve 36 and the ball shell 29 will be very small. When the air pressure between the first matching tube 2 and the first installation inner tube 13 increases, the pressure relief valve inside the pressure relief tube 17 will release the pressure to adjust the air pressure inside the first matching tube 2 and the first installation inner tube 13.

[0044] Then start the high-pressure air pump 10, the high-pressure air pump 10 will pump air through the spray gun 1, and the gas will be discharged through the first connecting pipe 6. The first connecting pipe 6 sends the gas to the inside of the connecting inner tube 14, and then enters the inside of the ball shell 29 from the inside of the connecting inner tube 14. Since the gap between the expanded ball sleeve 36 and the ball shell 29 is very small, when the gas passes through the gap between the ball shell 29 and the ball sleeve 36, it will be evenly heated, and since the ball sleeve 36 is round, the ball sleeve 36 will not block the air flow. Since three ball shells 29 are provided, the gas will be evenly heated and then discharged from the nozzle of the spray gun 1. When the gas is discharged, the paint inside the paint spray bottle 5 will be evenly discharged together. The hot air will increase the temperature of the paint and enhance the adhesion of the paint.

[0045] When the steam inside the first mating pipe 2 and the first installation inner pipe 13 discharges steam into the inside of the spherical sleeve 36 through the steam pipe 28, the spherical sleeve 36 will expand. In order to adjust the expansion rate of the spherical sleeve 36, the rotating circular plate 26 can be rotated. The rotating circular plate 26 drives the rotating wheel 39 to rotate through the rotating rod 32. The rotating wheel 39 can drive different ventilation ports 38 to communicate with the bottom of the steam pipe 28. Since the sizes of the multiple steam pipes 28 are different, the intake rate of the steam pipe 28 can be adjusted to control the expansion rate of the spherical sleeve 36. The first elastic telescopic rod 27 can drive the liquid leakage port 23 to be clamped on the inner wall of the mating groove 24 to limit the rotating circular plate 26.

[0046] After the painting is completed, the high-pressure air pump 10 is turned off, and the water pump is started. The water pump will pump water through the connection box 25 and the second installation inner pipe 20, and then convey the water into the first connection pipe 6 through the second connection pipe 16. At this time, due to the check valve 19, the water will be blocked by the check valve 19, then enter the inside of other spherical sleeves 36 through the connecting inner pipe 14, and then be discharged from the spray gun 1. When the inside of the spray gun 1 is cleaned of the paint, the water pump is turned off, and the high-pressure air pump 10 is started again. According to the above working principle, all the gas entering the inside of the spherical sleeve 36 at this time can dry the space between all the spherical sleeves 36 and the spherical shell 29.

[0047] After the cleaning is completed, water is injected into the space between the first mating pipe 2 and the first installation inner pipe 13 through the water injection port, and then the next step of painting can be carried out.

[0048] The above is only a preferred specific embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present invention, according to the technical solution of the present invention and its inventive concept, makes equivalent substitutions or changes, and should be covered by the protection scope of the present invention.

Claims

1. A spraying device for processing a magnesium alloy basket of an electric vehicle, comprising a spray gun (1), characterized in that, The upper end of the spray gun (1) is threadedly connected to a paint spraying bottle (5). The outer wall of the spray gun (1) is also fixedly connected to a first fitting pipe (2). A first installation inner pipe (13) is also fixedly connected inside the first fitting pipe (2). Water is filled between the first installation inner pipe (13) and the first fitting pipe (2). A heating mechanism (101) is fixedly installed inside the first installation inner pipe (13). The end of the first fitting pipe (2) away from the spray gun (1) is also fixedly connected to a second fitting pipe (3). A heating ring (18) is fixedly connected inside the second fitting pipe (3). The heating ring (18) can heat the water inside the first installation inner pipe (13) and the first fitting pipe (2). The heated and evaporated steam provides steam to the inside of the heating mechanism (101). A connecting inner pipe (14) is also fixedly connected to the inner wall of the second fitting pipe (3). A high-pressure air pump (10) is provided on the right side of the spray gun (1). The air outlet of the high-pressure air pump (10) is fixedly connected to a first connecting pipe (6) respectively. The end of the first connecting pipe (6) away from the high-pressure air pump (10) is fixedly communicated with the connecting inner pipe (14). A water pumping mechanism (201) that can extract the water between the first fitting pipe (2) and the first installation inner pipe (13) is fixedly connected between the second fitting pipe (3) and the first connecting pipe (6), which can flush the internal structure of the spray gun (1). The heating mechanism (101) includes three spherical shells (29). The three spherical shells (29) are fixedly communicated through pipes. The leftmost spherical shell (29) is fixedly connected to the spray gun (1). The rightmost spherical shell (29) is fixedly communicated with the connecting inner pipe (14). The spherical shells (29) are fixedly connected inside the first installation inner pipe (13). A steam pipe (28) is also fixedly connected inside the spherical shell (29). The outer wall of the steam pipe (28) passes through the inside of the first installation inner pipe (13). An installation frame (37) is also fixedly connected to the bottom of the steam pipe (28). A rotating wheel (39) is rotatably connected inside the installation frame (37). Four ventilation openings (38) are formed on the outer wall of the rotating wheel (39). The upper end of the rotating wheel (39) abuts against the bottom of the steam pipe (28). One of the ventilation openings (38) is communicated with the steam pipe (28). An inner sphere (35) is also provided outside the installation frame (37). A rotating rod (32) is fixedly connected to the outer wall of the rotating wheel (39). The outer wall of the rotating rod (32) passes through the inside of the spherical shell (29), the first installation inner pipe (13) and the first fitting pipe (2). The outer wall of the steam pipe (28) is fixedly connected to the inner sphere (35). The outer wall of the rotating rod (32) is rotatably connected to the inside of the inner sphere (35). A number of ventilation holes (34) are also formed on the outer wall of the inner sphere (35). Outside the inner sphere (35), a spherical sleeve (36) is further provided. A moving pipe (31) is slidably connected to the outer walls of both the steam pipe (28) and the rotating rod (32). The inner part of the spherical sleeve (36) is fixedly connected to the outer walls of the two moving pipes (31). A number of elastic ropes (30) are fixedly connected between the spherical sleeve (36) and the inner sphere (35). Three mounting circular boxes (4) are further fixedly connected to the outer wall of the first fitting pipe (2). The mounting circular boxes (4) are fixedly connected to the outer wall of the first fitting pipe (2). Each rotating rod (32) is rotatably connected inside the corresponding mounting circular box (4). The end of the rotating rod (32) far from the rotating wheel (39) is fixedly connected to a rotating circular plate (26). A number of fitting grooves (24) are formed in the inner wall of the mounting circular box (4). The end of the rotating circular plate (26) close to the rotating rod (32) is fixedly connected to a liquid leakage port (23) with a reset function.

2. The spraying device for processing the magnesium alloy basket of an electric vehicle according to claim 1, wherein, Inside the second fitting pipe (3), a U-shaped pipe (15) is provided. The U-shaped pipe (15) is fixedly connected to the outer wall of the heating ring (18). The U-shaped pipe (15) is communicated with the first installation inner pipe (13). A pressure relief pipe (17) is further fixedly connected to the outer wall of the U-shaped pipe (15). The outer wall of the pressure relief pipe (17) passes through the inside of the second fitting pipe (3). A pressure relief valve is installed inside the pressure relief pipe (17).

3. A spraying device for processing a magnesium alloy basket of an electric vehicle according to claim 1, characterized in that, The water pumping mechanism (201) includes a rectangular box (7). The rectangular box (7) is fixedly connected to the upper end of the second fitting pipe (3). A water pump is fixedly installed inside the rectangular box (7). The water outlet of the water pump is fixedly communicated with the outer wall of the first connecting pipe (6) through a second connecting pipe (16). The outer wall of the second connecting pipe (16) passes through the inside of the rectangular box (7).

4. A spraying device for processing a magnesium alloy basket of an electric vehicle according to claim 3, characterized in that, A connecting box (25) is fixedly connected to the outer wall of the first fitting pipe (2). The water inlet of the water pump is fixedly communicated with the outer wall of the connecting box (25) through a pipe.

5. The spraying device for processing the magnesium alloy basket of an electric vehicle according to claim 4, characterized in that, One end of the connecting box (25) close to the first fitting pipe (2) is fixedly communicated with a second installation inner pipe (20). The second installation inner pipe (20) is located between the first fitting pipe (2) and the first installation inner pipe (13). The outer wall of the second installation inner pipe (20) abuts against the inner wall of the first fitting pipe (2). A one-way valve (19) is further fixedly connected inside the first connecting pipe (6).

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