A paint mist purifying device combining water curtain and spray in a painting booth

Abstract

The application discloses a kind of paint mist purification devices of coating spray room water curtain plus spray combination, belong to paint mist purification equipment technical field, including the support frame installed on ground, upper water tank is slidably installed on support frame, and the lower side of upper water tank is connected with multiple first drip heads, two receiving boxes are slidably installed on support frame and are fixedly connected with upper water tank, and the lower side of receiving box is connected with multiple second drip heads, mounting frame is installed on ground, and receiving assembly and water storage tank are installed on mounting frame, water storage tank is connected with receiving assembly, and multiple spray rods are rotatably installed on water storage tank, one water head is fixedly installed on each spray rod, second motor and air driving assembly are installed on the lower side of mounting frame, second motor is connected with multiple spray rods by air driving assembly, water collecting box is fixedly installed on the outer side of mounting frame, and push assembly connected with air driving assembly is installed in water collecting box.

Description

Technical Field

[0001] This invention relates to the field of paint mist purification equipment technology, and specifically discloses a paint mist purification device that combines a water curtain and a spray system in a painting spray booth. Background Technology

[0002] Paint mist is the core pollutant generated during spray painting operations. It mainly consists of paint particles, solvent vapors, and a small amount of impurities, and is widely generated in various spray painting scenarios such as automobile manufacturing, furniture processing, mechanical parts spraying, and hardware product coating. If paint mist is directly emitted into the air during spray painting operations, it will not only pollute the atmospheric environment and harm the respiratory system and health of operators, but it will also adhere to the surfaces of equipment, floors, and workpieces in the work area, affecting the cleanliness of the work environment and the quality of workpiece coating. Therefore, paint mist purification is an indispensable environmental protection step in spray painting operations.

[0003] Paint mist purification equipment is the core supporting equipment for achieving paint mist purification. Its core function is to adsorb, intercept, and purify the paint mist generated during spray painting operations, reducing paint mist emissions, recovering usable components, ensuring a compliant working environment, and protecting the personal safety of operators. Adaptable to different scales and types of spray painting operations, covering various conditions such as small workpiece spraying and large equipment coating, it is a crucial support for achieving environmentally friendly and compliant production in the modern spray painting industry, and a key piece of equipment for practicing green production concepts and reducing pollutant emissions.

[0004] There are key problems that urgently need to be solved in the current application of paint mist purification equipment. Some paint mist purification equipment relies solely on fixed spray adsorption of paint mist, resulting in a relatively simple purification method that cannot achieve comprehensive and efficient adsorption and interception of paint mist. This leads to limited paint mist absorption and interception effects, low overall purification efficiency, and difficulty in meeting the environmental protection standards of painting operations. At the same time, the spray mechanism and rotating working structure of the equipment are mostly driven independently, requiring multiple power components. This not only increases the complexity of the equipment structure but also leads to high energy consumption and significantly increases the operating costs. In addition, traditional paint mist purification devices lack a complete water collection and centralized storage structure. The spray water used during the spraying process and the residual dripping wastewater after purification cannot be effectively recycled and reused. Most of it is directly discharged, causing serious waste of water resources, which does not meet the current development requirements of energy-saving production. It also easily leads to water accumulation and environmental pollution in the work area, further increasing the workload of on-site operation and maintenance, resulting in poor practicality and environmental friendliness of the equipment. Therefore, a paint mist purification device combining a water curtain and spray in a painting spray booth has been invented to address these shortcomings. Summary of the Invention

[0005] To address the aforementioned technical problems, the present invention adopts the following technical solution: a paint mist purification device combining a water curtain and spray system for a painting spray booth, comprising a support frame installed on the ground, an upper water tank slidably mounted on the support frame, multiple first water droplets connected to the lower side of the upper water tank, two receiving boxes fixedly connected to the upper water tank slidably mounted on the support frame, multiple second water droplets connected to the lower side of the receiving boxes, an installation frame installed on the ground, a receiving component and a water storage tank installed on the installation frame, the water storage tank being connected to the receiving component, multiple spray bars rotatably mounted on the water storage tank, and a spray head fixedly mounted on the upper part of each spray bar.

[0006] A second motor and an air-driven assembly are installed on the lower side of the mounting frame. The second motor is connected to multiple spray bars through the air-driven assembly. A water collection box is fixedly installed on the outside of the mounting frame, and a push assembly connected to the air-driven assembly is installed inside the water collection box.

[0007] Furthermore, the receiving component includes a lower water inlet box, which is fixedly installed on the mounting bracket and located below the upper water tank. Two side water inlets are fixedly installed symmetrically on both sides of the lower water inlet box, and the two side water inlets are located below the two receiving boxes respectively. Through holes are provided at the connection between the side water inlets and the lower water inlet box to achieve communication between the side water inlets and the lower water inlet box.

[0008] Furthermore, a water supply pipe is fixedly installed between the lower water inlet box and the water storage tank, thereby connecting the lower water inlet box and the water storage tank.

[0009] Furthermore, a slide groove is provided on the lower side of the mounting frame, and the air-driven assembly includes a moving rod. The moving rod is slidably mounted on the inner wall of the slide groove. A lower plate is fixedly mounted on the lower side of the mounting frame, and a second motor is fixedly mounted between the lower plate and the mounting frame. A turntable is fixedly mounted on the output end of the second motor. The turntable and the mounting frame do not contact each other. A connecting rod is rotatably connected to the side of the turntable away from the lower plate. The connection point between the connecting rod and the turntable is not located at the center of the turntable. The end of the connecting rod away from the turntable is rotatably connected to the moving rod.

[0010] Furthermore, an air blower is fixedly installed inside the water tank, with a portion of the air blower extending out of the water tank. A piston rod is slidably installed on the inner wall of the air blower, and a pushing inclined surface is provided on the lower end face of the piston rod. A moving shaft is fixedly installed on the side of the moving rod, with the end of the moving shaft away from the moving rod being hemispherical. The hemispherical end of the moving shaft is in contact with and connected to the pushing inclined surface.

[0011] Furthermore, a portion of the lower end of the spray bar extends into the water tank, and a gear is fixedly installed on the outer surface of each spray bar extending from the water tank. Multiple gears mesh with each other, and a first rack is fixedly installed on the lower side of the moving rod, which meshes with one of the gears.

[0012] Furthermore, the spray bar is partially hollow inside the water tank, and multiple water inlets are provided on the outer surface of the spray bar inside the water tank. The spray bar is connected to the inside of the water tank through the water inlets.

[0013] Furthermore, the pusher assembly includes a push plate that is slidably mounted on the inner wall of the water collection box. A connecting block is fixedly mounted on the upper side of the push plate, and a second rack is fixedly mounted on the side of the connecting block. The second rack is slidably mounted on the lower side of the mounting bracket and meshes with a gear. The second rack does not contact the moving rod.

[0014] Furthermore, multiple sliding blocks are fixedly installed inside the water collection box, and multiple leakage holes are provided on the side of the push plate, each corresponding to a different sliding block position. The cross-sectional dimensions of the leakage holes are the same as the cross-sectional dimensions of the sliding blocks.

[0015] The beneficial effects of this invention are: (1) The present invention achieves dual absorption of paint mist through water curtain and rotating spray, thereby improving absorption efficiency. At the same time, the spraying and rotation processes use the same power source and are linked together, thereby saving power source.

[0016] (2) The present invention collects the sprayed and dripping water by means of a receiving component and a water collection box, thereby avoiding the waste of water energy. Attached Figure Description

[0017] The accompanying drawings are provided to further illustrate the invention and form part of the specification. They are used in conjunction with embodiments of the invention to explain the invention and do not constitute a limitation thereof. In the drawings: Figure 1 This is a schematic diagram of the overall structure proposed in this invention.

[0018] Figure 2 This is a schematic diagram of the support frame structure proposed in this invention.

[0019] Figure 3 The present invention proposes Figure 2 A magnified view of a portion of point A in the middle.

[0020] Figure 4 This is a schematic diagram of the receiving component structure proposed in this invention.

[0021] Figure 5 This is a schematic diagram showing the positions of the lower water inlet box and mounting bracket proposed in this invention.

[0022] Figure 6 The present invention proposes Figure 5 A magnified view of a portion of point B in the middle.

[0023] Figure 7 The present invention proposes Figure 5 A magnified view of a portion of point C in the middle.

[0024] Figure 8 This is a schematic diagram of the spray bar structure proposed in this invention.

[0025] Figure 9 This is a schematic diagram showing the connection relationship between the water collection box and the push plate proposed in this invention.

[0026] Figure 10 The present invention proposes Figure 9 A magnified view of a portion of point D in the middle.

[0027] Reference numerals: 101-Support frame; 102-Upper slide rail; 103-Moving seat; 104-Mounting seat; 105-First motor; 106-First roller; 107-Second roller; 108-Housing body; 109-Water storage tank; 201-Water inlet pipe; 202-Upper water tank; 203-First drip head; 204-Receiver box; 205-Second drip head; 206-Side water box; 207-Lower water box; 208-Water supply pipe; 209-Mounting frame; 301-Lower plate; 302-Slide groove; 303-Moving rod; 304-Spray bar; 305- Gear; 306-First rack; 307-First limiting block; 308-Second limiting block; 309-Second rack; 310-Fixing block; 311-Moving shaft; 312-Piston rod; 313-Air cylinder; 314-Spring; 315-Pushing inclined plane; 316-Turntable; 317-Second motor; 318-Connecting rod; 319-Connecting shaft; 320-Water tank; 321-Sprayer head; 322-Water inlet; 401-Water collection box; 402-Push plate; 403-Return water pipe; 404-Sliding block; 405-Leak hole; 406-Connecting block; 501-Ground. Detailed Implementation

[0028] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments.

[0029] As mentioned in the background section, this application proposes a paint mist purification device that combines a water curtain and a spray system in a painting booth.

[0030] Appendix Figure 1 To the attached Figure 5As shown, the system includes a support frame 101 and a water tank 109 mounted on the ground 501. A housing 108 is fixedly mounted on the ground 501. The support frame 101 is located between the ground 501 and the housing 108. The housing 108 is semi-enclosed. The water tank 109 has an inlet and an outlet. The outlet of the water tank 109 contains a mixture of water and paint mist coagulant (AB agent). Two upper slide rails 102 are symmetrically fixedly mounted on the support frame 101. The upper slide rails 102 slide upwards... A movable base 103 is rotatably mounted on the side of the movable base 103. Two second rollers 107 are rotatably mounted on the side of the movable base 103. An upper slide rail 102 is located between the two second rollers 107. Both second rollers 107 are slidably connected to the upper slide rail 102. A first motor 105 is fixedly mounted on the side of the movable base 103. A first roller 106 is fixedly mounted on the output end of the first motor 105. The first roller 106 is slidably connected to the upper slide rail 102. A mounting base 104 is fixedly mounted on the side of the first roller 106.

[0031] As mentioned in the background section, this application proposes a paint mist purification device that combines a water curtain and a spray system in a painting booth.

[0032] Appendix Figure 2 To the attached Figure 5 As shown, an upper water tank 202 is fixedly installed on the mounting base 104. Multiple first drip heads 203 are connected to the lower side of the upper water tank 202. Two receiving boxes 204, fixedly connected to the upper water tank 202, are slidably installed on the support frame 101. Each receiving box 204 is located below a first drip head 203. Multiple second drip heads 205 are connected to the lower side of each receiving box 204. The first drip heads 203 communicate with the interior of the upper water tank 202, and the second drip heads 205 communicate with the interior of the receiving boxes 204. An inlet pipe 201 is connected to the side of the upper water tank 202. 201 consists of a steel pipe with a gradually changing outer diameter and a flexible hose with an equal outer diameter. The connection between the steel pipe and the flexible hose is secured with a clamp. One end of the inlet steel pipe is connected to the upper water tank 202, and the other end is connected to the flexible hose. The inner diameter of the part where the steel pipe and the flexible hose are connected is larger than the inner diameter of the part where the steel pipe and the flexible hose are connected. One end of the flexible hose is connected to the steel pipe, and the other end is connected to the outlet of the water storage tank 109. The inlet pipe 201 is connected to the outlet of the water storage tank 109 through a pipeline. A pressure pump is installed on the side of the water storage tank 109, and the output end of the pressure pump is connected to the inside of the outlet of the water storage tank 109.

[0033] As mentioned in the background section, this application proposes a paint mist purification device that combines a water curtain and a spray system in a painting booth.

[0034] Appendix Figure 2 To the attached Figure 8As shown, a mounting bracket 209 is installed on the ground 501. A receiving component and a water tank 320 are installed on the mounting bracket 209. The water tank 320 is connected to the receiving component. The water tank 320 consists of a box and a cover plate. The cover plate and the box are fastened together and can be disassembled. Multiple spray bars 304 are rotatably mounted on the cover plate of the water tank 320. The spray bars 304 can be removed from the cover plate of the water tank 320. The water tank 320 contains a mixture of water and paint mist coagulant (AB agent). The volume of the water and paint mist coagulant (AB agent) mixture occupies 1 / 2 of the volume of the water tank 320. A rotating sealing plug is installed at the connection between the water tank 320 and the spray bars 304. Each spray bar 304 has a spray head 321 fixedly installed on its upper part. The output part of the spray head 321 is located outside the water tank 320.

[0035] As mentioned in the background section, this application proposes a paint mist purification device that combines a water curtain and a spray system in a painting booth.

[0036] Appendix Figure 3 To the attached Figure 8 As shown, the receiving component includes a lower water inlet box 207, which is fixedly installed on the mounting bracket 209 and located below the upper water tank 202. Two side water inlet boxes 206 are symmetrically fixedly installed on both sides of the lower water inlet box 207. Each side water inlet box 206 is located below a receiving box 204. Through holes are provided at the connection between the side water inlet boxes 206 and the lower water inlet box 207 to achieve communication between them. A water supply pipe 208 is fixedly installed between the lower water inlet box 207 and the water storage tank 320 to achieve communication between the lower water inlet box 207 and the water storage tank 320. Waterproof sealing rings are installed at the connection between the water supply pipe 208, the lower water inlet box 207 and the water storage tank 320, and the connection between the side water inlet box 206 and the lower water inlet box 207.

[0037] At startup, the pressure pump delivers a mixture of water and paint mist coagulant (AB agent) through the inlet pipe 201 into the upper water tank 202. The mixture then drips through the first drip head 203, forming a water curtain. A portion of the water and paint mist coagulant (AB agent) mixture flows into the receiving box 204, and water curtains are also formed on both sides through the second drip head 205. The water and paint mist coagulant (AB agent) mixture flowing from the first drip head 203 then drips into the lower water receiving box 207. The water flowing from the second drip head 205 and... The mixture of paint mist coagulant (AB agent) drips into the side water box 206. The water and the mixture of paint mist coagulant (AB agent) in the side water box 206 converge into the lower water box 207. The water and the mixture of paint mist coagulant (AB agent) in the lower water box 207 enter the water storage tank 320 through the water supply pipe 208. Under the action of the water curtain, large paint mist particles (>10μm) directly collide with the water film and are captured. They fall into the water storage tank 320 with the water flow and are clumped and floated by the paint mist coagulant (AB agent), which makes them easier to retrieve.

[0038] As mentioned in the background section, this application proposes a paint mist purification device that combines a water curtain and a spray system in a painting booth.

[0039] Appendix Figure 4 To the attached Figure 9 As shown, a second motor 317 and an air-driven assembly are installed on the lower side of the mounting bracket 209. The second motor 317 is connected to multiple spray bars 304 through the air-driven assembly. A water collection box 401 is fixedly installed on the outer side of the mounting bracket 209. A return water pipe 403 is connected to the side of the push plate 402. A filter screen and a one-way valve are installed at the connection between the water collection box 401 and the return water pipe 403. The return water pipe 403 is connected to the water inlet of the water storage tank 109. A slide groove 302 is provided on the lower side of the mounting bracket 209. The air-driven assembly includes a moving rod 303, which is slidably installed on the inner wall of the slide groove 302. A lower plate 301 is fixedly installed on the lower side of the mounting bracket 209. A second motor 317 is fixedly installed between the lower plate 301 and the mounting bracket 209. A turntable 316 is fixedly installed at the output end of the second motor 317. The turntable 316 and the mounting bracket 209 do not contact each other.

[0040] As mentioned in the background section, this application proposes a paint mist purification device that combines a water curtain and a spray system in a painting booth.

[0041] Appendix Figure 3 To the attached Figure 9As shown, a connecting rod 318 is rotatably connected to the side of the turntable 316 away from the lower plate 301. The connection point between the connecting rod 318 and the turntable 316 is not located at the center of the turntable 316. A connecting shaft 319 is rotatably connected to the end of the connecting rod 318 away from the turntable 316. The connecting shaft 319 is fixedly connected to the moving rod 303. An air blower 313 is fixedly installed inside the water tank 320. A portion of the air blower 313 extends out of the water tank 320. A waterproof sealing ring is installed at the connection point between the air blower 313 and the inside of the water tank 320. A piston rod 312 is slidably installed on the inner wall of the air blower 313. A spring 314 is wound around the outer surface of the piston rod 312. One end of the spring 314 is fixedly installed on the outer surface of the piston rod 312, and the other end of the spring 314 is fixedly installed on the outer surface of the piston rod 312. A pushing inclined surface 315 is provided on the lower end face of the piston rod 312. A moving shaft 311 is fixedly installed on the side of the moving rod 303. The end of the moving shaft 311 away from the moving rod 303 is hemispherical. A fixing block 310 is slidably installed on the outer surface of the moving shaft 311. The fixing block 310 is fixedly installed on the lower side of the mounting bracket 209. The hemispherical end of the moving shaft 311 is in contact with the pushing inclined surface 315.

[0042] As mentioned in the background section, this application proposes a paint mist purification device that combines a water curtain and a spray system in a painting booth.

[0043] Appendix Figure 5 To the attached Figure 10 As shown, a portion of the lower end of the spray bar 304 extends into the water tank 320. A gear 305 is fixedly installed on the outer surface of each spray bar 304 extending out of the water tank 320. Multiple gears 305 mesh with each other. A first rack 306 is fixedly installed on the lower side of the moving rod 303. The first rack 306 meshes with one of the gears 305. A first limiting block 307 is slidably installed on the side of the first rack 306. The first limiting block 307 is fixedly installed on the lower side of the mounting bracket 209.

[0044] At the same time, the second motor 317 starts, driving the connecting rod 318 to move via the turntable 316. The connecting rod 318 drives the moving rod 303 to slide back and forth along the inner wall of the slide groove 302, and then pushes the piston rod 312 to slide back and forth along the inner wall of the air cylinder 313 via the moving shaft 311. This causes the mixture of water and paint mist coagulant (AB agent) in the water tank 320 to enter the spray bar 304 through the water inlet 322 and be sprayed around through the spray head 321. When the moving rod 303 moves, the first rack 306 meshes with the gear 305 to drive the spray bar 304 to rotate, thereby spraying the mixture of water and paint mist coagulant (AB agent) around when the spray bar 304 rotates, thus forming a secondary purification barrier to capture the escaped fine paint mist particles. The sprayed water mist and paint mist are fully mixed, causing the paint particles to adhere to the water droplets and finally settle into the water collection box 401.

[0045] As mentioned in the background section, this application proposes a paint mist purification device that combines a water curtain and a spray system in a painting booth.

[0046] Appendix Figure 6 To the attached Figure 10 As shown, the spray bar 304 is partially hollow inside the water tank 320. Multiple water inlets 322 are provided on the outer surface of the spray bar 304 inside the water tank 320. The spray bar 304 communicates with the inside of the water tank 320 through the water inlets 322. A pushing assembly connected to the air-blowing drive assembly is installed inside the water collection box 401. The pushing assembly includes a push plate 402 slidably mounted on the inner wall of the water collection box 401. A connecting block 406 is fixedly mounted on the upper side of the push plate 402, and a second rack 309 is fixedly mounted on the side of the connecting block 406. The second rack 309 is slidably installed on the lower side of the mounting bracket 209. The second rack 309 meshes with a gear 305. The second rack 309 does not contact the moving rod 303. A second limiting block 308 is slidably installed on the side of the second rack 309. The second limiting block 308 is fixedly installed on the lower side of the mounting bracket 209. Multiple sliding blocks 404 are fixedly installed inside the water collection box 401. Multiple leakage holes 405 are provided on the side of the push plate 402, which correspond to the positions of different sliding blocks 404. The cross-sectional dimensions of the leakage holes 405 are the same as the cross-sectional dimensions of the sliding blocks 404.

[0047] When gear 305 rotates, it drives the second rack 309 to slide back and forth along the second limit block 308, which in turn drives the push plate 402 to slide back and forth along the inner wall of the water collection box 401. This causes the mixture of water and paint mist coagulant (AB agent) in the water collection box 401 to flow back into the water inlet of the water storage tank 109 through the return water pipe 403. The clumped paint mist is separated from the water and paint mist coagulant (AB agent) by the filter screen. After the work is completed, the cover plate on the water storage tank 320 is removed, and the clumped paint mist in the water storage tank 320 and the water collection box 401 is retrieved and collected.

[0048] Working principle: (a) At the start of operation, the pressure pump delivers a mixture of water and paint mist coagulant (AB agent) through the pipeline into the upper water tank 202 via the inlet pipe 201. The mixture then flows down through the first drip head 203, forming a water curtain. During this process, as the mixture passes through the steel pipe, the water pressure increases due to the change in the pipe's inner diameter, preventing insufficient water supply. At this point, a portion of the mixture flows into the receiving box 204 and forms water curtains on both sides through the second drip head 205. The water flowing down from the first drip head 203 then mixes with the paint mist coagulant (AB agent)... The mixture drips into the lower water collection box 207. The mixture of water and paint mist coagulant (AB agent) flowing from the second water head 205 drips into the side water collection box 206. The mixture of water and paint mist coagulant (AB agent) in the side water collection box 206 gathers into the lower water collection box 207. The mixture of water and paint mist coagulant (AB agent) in the lower water collection box 207 enters the water storage tank 320 through the water supply pipe 208. Under the action of the water curtain, large particles of paint mist (>10μm) directly collide with the water film and are captured. They fall into the water storage tank 320 with the water flow and are clumped and floated by the paint mist coagulant (AB agent), making them easier to retrieve.

[0049] (ii) At the same time, the second motor 317 starts, and drives the connecting rod 318 to move through the turntable 316. The connecting rod 318 drives the moving rod 303 to slide back and forth along the inner wall of the slide groove 302. Then, through the moving shaft 311, it pushes the piston rod 312 to slide back and forth along the inner wall of the air cylinder 313. This causes the mixture of water and paint mist coagulant (AB agent) in the water tank 320 to enter the spray bar 304 through the water inlet 322 and spray it to the surroundings through the spray head 321. When the moving rod 303 moves, the first rack 306 and the gear 305 mesh to drive the spray bar 304 to rotate. This achieves the spraying of the mixture of water and paint mist coagulant (AB agent) to the surroundings when the spray bar 304 rotates, thereby forming a secondary purification barrier to capture the escaped fine paint mist particles. The sprayed water mist and paint mist are fully mixed, causing the paint particles to adhere to the water droplets and finally settle into the water collection box 401.

[0050] (iii) When gear 305 rotates, it drives the second rack 309 to slide back and forth along the second limit block 308, which in turn drives the push plate 402 to slide back and forth along the inner wall of the water collection box 401, thereby returning the mixture of water and paint mist coagulant (AB agent) in the water collection box 401 to the water inlet of the water storage tank 109 through the return water pipe 403, and separating the clumped paint mist from the water and paint mist coagulant (AB agent) through the filter screen. After the work is completed, the cover plate on the water storage tank 320 is removed, and the clumped paint mist in the water storage tank 320 and the water collection box 401 is retrieved and collected.

[0051] The above are merely preferred embodiments of the present invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and inventive concept of the present invention, should be covered within the scope of protection of the present invention.

Claims

1. A paint mist purification device combining a water curtain and spray system for a painting spray booth, characterized in that, The system includes a support frame (101) installed on the ground (501), an upper water tank (202) slidably mounted on the support frame (101), multiple first drip heads (203) connected to the lower side of the upper water tank (202), two receiving boxes (204) slidably mounted on the support frame (101) and fixedly connected to the upper water tank (202), multiple second drip heads (205) connected to the lower side of the receiving boxes (204), an installation frame (209) installed on the ground (501), a receiving component and a water storage tank (320) installed on the installation frame (209), the water storage tank (320) connected to the receiving component, multiple spray bars (304) rotatably mounted on the water storage tank (320), and a spray head (321) fixedly mounted on the upper part of each spray bar (304). A second motor (317) and an air-driving assembly are installed on the lower side of the mounting bracket (209). The second motor (317) is connected to multiple spray bars (304) through the air-driving assembly. A water collection box (401) is fixedly installed on the outside of the mounting bracket (209). A pushing assembly connected to the air-driving assembly is installed inside the water collection box (401).

2. The paint mist purification device of water curtain and spray combination in a painting booth according to claim 1, characterized in that, The receiving component includes a lower water box (207), which is fixedly installed on the mounting bracket (209) and located below the upper water tank (202). Two side water boxes (206) are fixedly installed symmetrically on both sides of the lower water box (207). The two side water boxes (206) are located below the two receiving boxes (204) respectively. A through hole is provided at the connection between the side water box (206) and the lower water box (207) to achieve communication between the side water box (206) and the lower water box (207).

3. The paint mist purification device of water curtain and spray combination in a painting booth according to claim 2, characterized in that, A water supply pipe (208) is fixedly installed between the lower water box (207) and the water storage tank (320), and the connection between the lower water box (207) and the water storage tank (320) is realized through the water supply pipe (208).

4. A paint mist purification device combining a water curtain and spray system for a painting booth according to claim 2, characterized in that, The mounting bracket (209) has a slide groove (302) on its lower side. The air-driven assembly includes a moving rod (303). The moving rod (303) is slidably mounted on the inner wall of the slide groove (302). A lower plate (301) is fixedly mounted on the lower side of the mounting bracket (209). A second motor (317) is fixedly mounted between the lower plate (301) and the mounting bracket (209). A turntable (316) is fixedly mounted at the output end of the second motor (317). The turntable (316) and the mounting bracket (209) do not contact each other. A connecting rod (318) is rotatably connected to the side of the turntable (316) away from the lower plate (301). The connection point between the connecting rod (318) and the turntable (316) is not located at the center of the turntable (316). The end of the connecting rod (318) away from the turntable (316) is rotatably connected to the moving rod (303).

5. A paint mist purification device combining a water curtain and spray system for a painting booth according to claim 4, characterized in that, An air blower (313) is fixedly installed inside the water tank (320). A part of the air blower (313) extends out of the water tank (320). A piston rod (312) is slidably installed on the inner wall of the air blower (313). A lifting inclined surface (315) is provided on the lower end face of the piston rod (312). A moving shaft (311) is fixedly installed on the side of the moving rod (303). The end of the moving shaft (311) away from the moving rod (303) is hemispherical. The hemispherical end of the moving shaft (311) is in contact with the lifting inclined surface (315).

6. A paint mist purification device combining a water curtain and spray system for a painting booth according to claim 4, characterized in that, A portion of the lower end of the spray bar (304) extends into the water tank (320). A gear (305) is fixedly installed on the outer surface of each spray bar (304) extending from the water tank (320). Multiple gears (305) mesh with each other. A first rack (306) is fixedly installed on the lower side of the moving rod (303). The first rack (306) meshes with one of the gears (305).

7. A paint mist purification device combining a water curtain and spray system for a painting booth according to claim 4, characterized in that, The spray bar (304) is partially hollow inside the water tank (320). Multiple water inlets (322) are provided on the outer surface of the spray bar (304) inside the water tank (320). The spray bar (304) is connected to the inside of the water tank (320) through the water inlets (322).

8. A paint mist purification device combining a water curtain and spray system for a painting booth according to claim 4, characterized in that, The push assembly includes a push plate (402) that is slidably mounted on the inner wall of the water collection box (401). A connecting block (406) is fixedly mounted on the upper side of the push plate (402). A second rack (309) is fixedly mounted on the side of the connecting block (406). The second rack (309) is slidably mounted on the lower side of the mounting bracket (209). The second rack (309) meshes with a gear (305). The second rack (309) does not contact the moving rod (303).

9. A paint mist purification device combining a water curtain and spray system for a painting booth according to claim 8, characterized in that, The water collection box (401) has multiple sliding blocks (404) fixedly installed inside. The push plate (402) has multiple leakage holes (405) on its side, which correspond to the positions of different sliding blocks (404). The cross-sectional dimensions of the leakage holes (405) are the same as those of the sliding blocks (404).

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