A frame welding fume purification treatment device

Abstract

The application discloses a kind of frame welding smoke purification treatment device, it is related to dust removal equipment technical field.Processing box is included;Partition is vertically arranged in processing box, and partition divides the inner wall of processing box into left cavity and right cavity and is arranged side by side, left cavity and right cavity are connected by air suction fan assembly between left cavity and right cavity;Air inlet pipe is arranged in left cavity, and the end of air inlet pipe away from left cavity is penetrated to the outside of left cavity;Spraying assembly is arranged outside the end of air inlet pipe in left cavity;Air flow adjusting assembly is arranged on the bottom surface in left cavity, and air flow adjusting assembly is movably connected with the end of air inlet pipe in left cavity;Filter exhaust tank is arranged in right cavity.The application has the advantages of improving the effect of smoke purification by spraying and filtering in sequence.

Description

Technical Field

[0001] This invention relates to the field of dust removal equipment technology, specifically to a device for purifying and treating welding fumes from vehicle frames. Background Technology

[0002] The welding process of vehicle frames generates harmful fumes. Some existing welding workshops directly absorb and collect the fumes, filter them, and then release them. However, this method still results in the emission of particulate matter, which poses a significant threat to human health and the environment. Summary of the Invention

[0003] To address the aforementioned technical shortcomings, the present invention aims to provide a vehicle frame welding fume purification device, which has the advantages of improving the fume purification effect by sequentially performing spraying and filtration.

[0004] To solve the above-mentioned technical problems, the present invention adopts the following technical solution: The present invention provides a vehicle frame welding fume purification and treatment device, comprising:

[0005] Processing box;

[0006] A partition plate is vertically installed inside the processing box, and the partition plate divides the inner wall of the processing box into a left cavity and a right cavity arranged side by side. The left cavity and the right cavity are connected by a suction fan assembly.

[0007] An air inlet duct is installed inside the left cavity, with one end of the air inlet duct extending to the outside of the left cavity.

[0008] The spray assembly has an air inlet pipe located outside one end of the left cavity.

[0009] An airflow regulating component is installed on the bottom surface of the left cavity and is movably connected to one end of the air inlet pipe located in the left cavity.

[0010] The filter exhaust box is located in the right cavity.

[0011] Preferably, the spray assembly includes:

[0012] A water tank with a water pump is located in the left cavity.

[0013] A water spray ring disc is movably fitted on the outer peripheral wall of the air inlet pipe, and a water tank with a water pump is connected to the water spray ring disc via a flexible hose.

[0014] The spray head is provided in multiple ways. The multiple spray heads are evenly distributed circumferentially on the bottom surface of the spray annular disc, which facilitates the spraying of water droplets on the welding fumes and dust, and helps to mix the water droplets with the particles in the welding fumes and dust, thereby improving the treatment effect.

[0015] Preferably, the air inlet pipe is coaxially connected to an exhaust pipe and a tail pipe at one end of the left cavity. The outer peripheral wall of the exhaust pipe has a plurality of exhaust holes that correspond one-to-one with the water spray head. The welding fumes can be discharged through the exhaust pipe, which facilitates the spray assembly to spray the welding fumes.

[0016] Preferably, the exhaust port assembly includes:

[0017] Multiple vents are spaced along the axis of the vent pipe, allowing welding fumes to be discharged and facilitating the spray system to spray the fumes.

[0018] Preferably, the airflow regulating component includes:

[0019] The lifting cylinder is located on the bottom surface of the left cavity;

[0020] A solid plug tube is coaxially mounted on the piston rod of the lifting cylinder, with one end of the solid plug tube away from the lifting cylinder being movably inserted into the tailpipe. The lifting cylinder pushes the solid plug tube to different positions in the exhaust pipe and tailpipe to achieve different discharge effects on the welding fumes.

[0021] Preferably, a sliding plate is horizontally slidably disposed on the bottom surface of the left cavity, and the lifting cylinder is disposed on the sliding plate, which facilitates disassembly when the airflow adjustment component is not in use.

[0022] Preferably, the suction fan assembly includes:

[0023] A baffle is vertically installed in the left cavity and is located between the lifting cylinder and the right cavity.

[0024] The filter plates are arranged in multiple ways, and the multiple filter plates are arranged alternately from top to bottom between the baffle and the right cavity.

[0025] The suction fan is located on top of the uppermost filter plate. The air outlet of the suction fan extends through to the top of the right cavity, and the air outlet of the suction fan corresponds vertically to the position of the filter exhaust box.

[0026] The vents are through holes, and there are multiple vents arranged horizontally at intervals at the bottom of the baffle. This allows the welding fumes to be sprayed, filtered by the suction fan, and then pass through the vents and various filter plates before entering the right cavity.

[0027] Preferably, the filtered exhaust box comprises:

[0028] The V-shaped housing has the exhaust port of the fan positioned vertically corresponding to the opening at the top of the housing, while the bottom of the housing is open.

[0029] Exhaust plate one, exhaust plate one is horizontally fixed in the middle of the opening at the top of the V-shaped box. Exhaust plate one is close to the right cavity, and the two opposing side walls are open.

[0030] Exhaust plate 2, there are two exhaust plates 2, and the two exhaust plates 2 are respectively slidably disposed in the openings of the side walls at both ends of exhaust plate 1. Both exhaust plate 1 and exhaust plate 2 are filter mesh structures, and the mesh count of exhaust plate 1 is greater than that of exhaust plate 2.

[0031] There are two push cylinders, which are respectively located on two opposing inner walls of the right cavity. The positions of the two push cylinders correspond one-to-one with the positions of the two exhaust plates. The piston rods of the push cylinders are respectively connected to the exhaust plates at the corresponding positions.

[0032] There are two purification air pipes, which are respectively located on the opposite side walls of the right cavity. The positions of the purification air pipes correspond to the bottom openings of the V-shaped box. The welding fumes enter through the top opening of the V-shaped box, are filtered by exhaust plate one and exhaust plate two, and are discharged through the bottom opening of the V-shaped box.

[0033] Preferably, a sealing plate is horizontally arranged on the top opening of the V-shaped box, and the outer peripheral wall of the sealing plate is connected to the inner peripheral wall of the right cavity. The top opening of the V-shaped box is located on the sealing plate, which facilitates the entry of welding fumes that enter the right cavity through the exhaust port of the suction fan into the V-shaped box for purification.

[0034] Preferably, a sealing plate two is horizontally arranged at the bottom of the V-shaped box, the outer peripheral wall of the sealing plate two is connected to the inner peripheral wall of the right cavity, the bottom opening of the V-shaped box penetrates the sealing plate two, and the purification air pipe is located below the sealing plate two, which facilitates the entry of welding fumes into the right cavity from the exhaust port of the suction fan into the V-shaped box to complete the purification.

[0035] The beneficial effects of the present invention are as follows: 1. The present invention first treats the welding fumes by spraying them through a spraying assembly. Water droplets are sprayed to mix with the particulate matter in the fumes, causing them to fall and be collected, thereby reducing the particulate matter content in the fumes, achieving the effect of treating the fumes, and improving the quality of the emitted gas.

[0036] 2. Depending on the need to treat the fumes generated during welding, the lifting cylinder can move the solid blockage tube inside the exhaust pipe, which can block the exhaust hole group at the corresponding position on the exhaust pipe. The fumes generated during welding can be discharged through the exhaust hole group on the exhaust pipe that is not blocked by the solid blockage tube, thereby achieving different exhaust volumes. Attached Figure Description

[0037] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0038] Figure 1 This is a schematic diagram of a vehicle frame welding fume purification and treatment device provided in an embodiment of the present invention.

[0039] Figure 2 This is a schematic diagram showing the position of the airflow adjustment component in a vehicle frame welding fume purification device provided in an embodiment of the present invention.

[0040] Figure 3 This is a schematic diagram of the airflow regulation component structure of a vehicle frame welding fume purification device provided in an embodiment of the present invention.

[0041] Figure 4 This is a schematic diagram of the spray assembly structure of a vehicle frame welding fume purification device provided in an embodiment of the present invention.

[0042] Figure 5 for Figure 4 Enlarged schematic diagram of the structure at point A in the middle.

[0043] Figure 6 This is a schematic diagram of the suction fan assembly structure of a vehicle frame welding fume purification device provided in an embodiment of the present invention.

[0044] Figure 7 This is a schematic diagram of the filter exhaust box structure of a vehicle frame welding fume purification device provided in an embodiment of the present invention.

[0045] Figure 8 This is a schematic diagram of the structure of a vehicle frame welding fume purification device provided in an embodiment of the present invention, in which the second exhaust plate is pushed into the first exhaust plate.

[0046] Explanation of reference numerals in the attached drawings: 1. Processing box; 11. Left cavity; 12. Right cavity; 2. Divider plate; 3. Air inlet pipe; 31. Exhaust pipe; 32. Tail pipe; 33. Exhaust port group; 331. Exhaust port; 4. Spray assembly; 41. Water tank with water pump; 42. Spray ring disc; 43. Hose; 44. Spray head; 5. Airflow regulating assembly; 51. Lifting cylinder; 52. Blocking solid tube; 53. Slide plate; 6. Suction fan assembly; 61. Baffle; 62. Filter plate; 63. Suction fan; 64. Air vent; 7. Filter exhaust box; 71. V-shaped box; 72. Exhaust plate one; 73. Exhaust plate two; 74. Push cylinder; 75. Purified air pipe; 76. Sealing plate one; 77. Sealing plate two. Detailed Implementation

[0047] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0048] Example 1

[0049] like Figure 1 As shown, the present invention provides a vehicle frame welding fume purification and treatment device, including a treatment box 1; a partition plate 2 is vertically arranged inside the treatment box 1, and the partition plate 2 divides the inner wall of the treatment box 1 into a left cavity 11 and a right cavity 12 arranged side by side, and the left cavity 11 and the right cavity 12 are connected by a suction fan assembly 6; an air inlet pipe 3 is arranged inside the left cavity 11, and one end of the air inlet pipe 3 away from the left cavity 11 extends to the outside of the left cavity 11; a spray assembly 4 is arranged outside the end of the air inlet pipe 3 located inside the left cavity 11; an airflow regulating assembly 5 is arranged on the bottom surface inside the left cavity 11, and the airflow regulating assembly 5 is movably connected to the end of the air inlet pipe 3 located inside the left cavity 11; and a filter exhaust box 7 is arranged inside the right cavity 12.

[0050] The welding fumes enter the left cavity 11 through the end of the air inlet pipe 3 away from the left cavity 11. Under the spray of the spray assembly 4, the water droplets or mist generated by the spray mix with the particles in the welding fumes. After being sprayed, the welding fumes are drawn from the left cavity 11 into the right cavity 12 by the suction fan assembly 6, and then discharged after being filtered by the filter exhaust box 7. The airflow regulating assembly 5 can adjust the effect of the welding fumes discharged from the air inlet pipe 3 as needed, so that different treatment effects can be achieved on the particles in the welding fumes under the action of the spray assembly 4.

[0051] Example 2

[0052] Based on Example 1, such as Figures 1 to 2 , Figures 4 to 5 As shown, the spray assembly 4 includes a water tank 41 with a water pump, which is located inside the left cavity 11; a spray ring disc 42 is movably fitted on the outer peripheral wall of the air inlet pipe 3, and the water tank 41 with the water pump and the spray ring disc 42 are connected by a hose 43; multiple spray heads 44 are provided, and the multiple spray heads 44 are evenly distributed circumferentially on the bottom surface of the spray ring disc 42; one end of the air inlet pipe 3 located inside the left cavity 11 is coaxially connected to an exhaust pipe 31 and a tail pipe 32 in sequence, and multiple exhaust hole groups 33 corresponding to the spray heads 44 are evenly distributed circumferentially on the outer peripheral wall of the exhaust pipe 31; the exhaust hole group 33 includes multiple exhaust holes 331, and the exhaust holes 331 are distributed at intervals along the axial length of the exhaust pipe 31.

[0053] The welding fumes enter the air inlet pipe 3 and are then discharged through the exhaust ports 331. At the same time, the water pump in the water tank 41 is activated, so that the spray water in the water tank 41 enters the spray ring plate 42 through the hose 43 and is then sprayed out by the spray head 44 (the spray head 44 can spray to the exhaust port 331 at the corresponding position), so that the water droplets mix with the particles in the welding fumes and improve the treatment effect. A water tank can be set at the connection between the bottom surface and the side wall inside the left cavity 11 to facilitate the collection of the spray water.

[0054] Example 3

[0055] Based on Example 1, such as Figures 1 to 4As shown, the airflow regulating assembly 5 includes a lifting cylinder 51, which is disposed on the bottom surface inside the left cavity 11; a solid blocking tube 52 is coaxially disposed on the piston rod of the lifting cylinder 51, and one end of the solid blocking tube 52 away from the lifting cylinder 51 is movably inserted into the tailpipe 32; the exhaust pipe 31 and the tailpipe 32 have the same inner diameter; the different exhaust effects of welding fumes can be adjusted as needed: starting the lifting cylinder 51 drives the solid blocking tube 52 to move away from the exhaust pipe 31 in the tailpipe 32 until the positions of the solid blocking tube 52 and the exhaust pipe 31 are misaligned. At this time, the solid blocking tube 52 will not block the exhaust hole group 33 on the exhaust pipe 31, and the welding fumes can be discharged. The fumes are discharged through the exhaust port group 33 on the exhaust pipe 31 (at this time, the exhaust volume of welding fumes is the largest); the lifting cylinder 51 is started to drive the solid blocking tube 52 to move closer to the exhaust pipe 31 in the tailpipe 32 until the solid blocking tube 52 moves into the exhaust pipe 31. At this time, depending on the stroke of the lifting cylinder 51, the solid blocking tube 52 can block the exhaust port group 33 at the corresponding position on the exhaust pipe 31. The welding fumes can be discharged through the exhaust port group 33 on the exhaust pipe 31 that are not blocked by the solid blocking tube 52; when the solid blocking tube 52 completely blocks the exhaust port group 33 on the exhaust pipe 31, the welding fumes cannot be discharged through the exhaust port group 33.

[0056] A sliding plate 53 is horizontally slidably mounted on the bottom surface of the left cavity 11, and a lifting cylinder 51 is mounted on the sliding plate 53. When the airflow regulating component 5 is not needed, the sliding plate 53 can be slid on the bottom surface of the left cavity 11 (a groove can be provided on the bottom surface of the left cavity 11 to accommodate the sliding plate 53, so that the sliding plate 53 can slide in the groove), and the airflow regulating component 5 can be removed from the bottom surface of the left cavity 11 (first start the lifting cylinder 51 to drive the blockage solid tube 52 to move away from the exhaust pipe 31 in the tailpipe 32 until the blockage solid tube 52 is moved to the outside of the tailpipe 32). A movable door corresponding to the position of the sliding plate 53 can be provided on the outer wall of the left cavity 11 to facilitate the sliding disassembly of the sliding plate 53 and the airflow regulating component 5.

[0057] Example 4

[0058] Based on Example 1, such as Figure 1 and Figure 6As shown, the suction fan assembly 6 includes a baffle 61, which is vertically disposed within the left cavity 11 and located between the lifting cylinder 51 and the right cavity 12; multiple filter plates 62 are provided, and the multiple filter plates 62 are arranged alternately from top to bottom between the baffle 61 and the right cavity 12; the suction fan 63 is disposed on top of the uppermost filter plate 62, and the air outlet of the suction fan 63 extends through to the top of the right cavity 12, and the air outlet of the suction fan 63 corresponds vertically to the position of the filter exhaust box 7; the air hole 64 is a through hole, and the air hole 64 is provided with There are multiple air holes 64 horizontally spaced at the bottom of the baffle 61; the outer peripheral wall of the baffle 61 is connected to the inner peripheral wall of the left cavity 11, so that the welding fumes are sprayed in the left cavity 11 and then filtered by the suction fan 63 (the air inlet of the suction fan 63 faces the top surface of the uppermost baffle 61) through the air holes 64 and each filter plate 62 in sequence (the welding fumes flow from the bottommost filter plate 62 to the topmost filter plate 62 in sequence) and enter the right cavity 12 through the air outlet of the suction fan 63.

[0059] Example 5

[0060] Based on Example 1, such as Figure 1 , Figures 7 to 8 As shown, the filter exhaust box 7 includes a V-shaped box 71. The position of the air outlet of the suction fan 63 corresponds vertically to the position of the top opening of the V-shaped box 71, and the bottom of the V-shaped box 71 is open. The first exhaust plate 72 is horizontally fixed at the middle position of the top opening of the V-shaped box 71. The two opposing side walls of the first exhaust plate 72 near the right cavity 12 are both open. There are two second exhaust plates 73, which are slidably disposed in the openings of the side walls at both ends of the first exhaust plate 72. Both the first exhaust plate 72 and the second exhaust plate 73 are filter mesh structures, and the mesh count of the first exhaust plate 72 is greater than that of the second exhaust plate 73. There are two push cylinders 74, which are respectively disposed on the two opposing inner walls of the right cavity 12. The positions of the two push cylinders 74 correspond one-to-one with the positions of the two second exhaust plates 73, and the piston rods of the push cylinders 74 are connected to the corresponding positions of the second exhaust plates 73.

[0061] Welding fumes enter through the top opening of the V-shaped housing 71, are filtered by exhaust plate 1 72 and exhaust plate 2 73, and are discharged through the bottom opening of the V-shaped housing 71. The filtration effect of the welding fumes can be adjusted by changing the position of exhaust plate 2 73: when the actuator cylinder 74 moves exhaust plate 2 73 away from exhaust plate 1 72, the welding fumes can be filtered by both exhaust plate 1 72 and exhaust plate 2 73; when the actuator cylinder 74 moves exhaust plate 2 73 into exhaust plate 1 72 (e.g., ...), the fumes can be filtered by both exhaust plate 1 72 and exhaust plate 2 73. Figure 8As shown in the figure, since the mesh count of exhaust plate 72 is greater than that of exhaust plate 73, the welding fumes can only be discharged through the bottom opening of the V-shaped box 71 via exhaust plate 72. Therefore, the filtration effect of welding fumes can be improved by exhaust plate 72.

[0062] The end of exhaust plate 2 73 near the push cylinder 74 is connected to the inner wall of the top opening of the V-shaped box 71 through a filter cloth. This allows the filter cloth to be unfolded simultaneously when the exhaust plate 2 73 is moved into the exhaust plate 1 72 by the push cylinder 74 (that is, the filter cloth can block the gap between the exhaust plate 2 73 and the inner wall of the top opening of the V-shaped box 71). This prevents the welding fumes from being discharged directly through the bottom opening of the V-shaped box 71 without passing through the exhaust plate 1 72 and the exhaust plate 2 73.

[0063] There are two purification air pipes 75, which are respectively located on the opposite side walls of the right cavity 12, and the positions of the purification air pipes 75 correspond to the bottom openings of the V-shaped box 71; the welding fumes discharged through the bottom openings of the V-shaped box 71 can be discharged through the two purification air pipes 75 respectively.

[0064] Example 6

[0065] Based on Example 1, such as Figure 1 , Figures 6 to 8 As shown, a sealing plate 76 is horizontally arranged on the top opening of the V-shaped box 71. The outer peripheral wall of the sealing plate 76 is connected to the inner peripheral wall of the right cavity 12. The top opening of the V-shaped box 71 is located on the sealing plate 76. A sealing plate 77 is horizontally arranged on the bottom of the V-shaped box 71. The outer peripheral wall of the sealing plate 77 is connected to the inner peripheral wall of the right cavity 12. The bottom opening of the V-shaped box 71 passes through the sealing plate 77. The purification air pipe 75 is located below the sealing plate 77.

[0066] The sealing plate 76 and sealing plate 77 within the right cavity 12 isolate the V-shaped box 71 within the right cavity 12 (i.e., the V-shaped box 71 is located within the sealed space formed by the sealing plate 76 and sealing plate 77, preventing welding fumes from entering the right cavity 12 through the exhaust port of the suction fan 63 and thus preventing them from entering the top opening of the V-shaped box 71). This facilitates the entry of welding fumes from the exhaust port of the suction fan 63 into the right cavity 12, allowing them to enter the top opening of the V-shaped box 71, be filtered by the exhaust plate 72 and exhaust plate 73, and finally be discharged through the bottom opening of the V-shaped box 71.

[0067] Obviously, those skilled in the art can make various modifications and variations to this invention without departing from its spirit and scope. Therefore, if these modifications and variations fall within the scope of the claims of this invention and their equivalents, this invention also intends to include these modifications and variations.

Claims

1. A device for purifying and treating welding fumes from vehicle frames, characterized in that, include: Processing box; A partition plate is vertically installed inside the processing box, and the partition plate divides the inner wall of the processing box into a left cavity and a right cavity arranged side by side. The left cavity and the right cavity are connected by a suction fan assembly. An air inlet duct is installed inside the left cavity, with one end of the air inlet duct extending to the outside of the left cavity. The spray assembly has an air inlet pipe located outside one end of the left cavity. An airflow regulating component is installed on the bottom surface of the left cavity and is movably connected to one end of the air inlet pipe located in the left cavity. The filter exhaust box is located in the right cavity. The suction fan assembly includes a baffle, which is vertically disposed in the left cavity and located between the lifting cylinder and the right cavity. The filter plate is provided in multiple ways, and the multiple filter plates are arranged alternately between the baffle and the right cavity from top to bottom; The suction fan is located on top of the uppermost filter plate. The air outlet of the suction fan extends through to the top of the right cavity, and the air outlet of the suction fan corresponds vertically to the position of the filter exhaust box. The vents are through holes, and there are multiple vents, which are horizontally spaced at the bottom of the baffle. The filter exhaust box includes a V-shaped box body. The position of the air outlet of the suction fan corresponds vertically to the position of the top opening of the V-shaped box body. The bottom of the V-shaped box body is open. Exhaust plate one, exhaust plate one is horizontally fixed in the middle of the opening at the top of the V-shaped box. Exhaust plate one is close to the right cavity, and the two opposing side walls are open. Exhaust plate 2, there are two exhaust plates 2, and the two exhaust plates 2 are respectively slidably disposed in the openings of the side walls at both ends of exhaust plate 1. Both exhaust plate 1 and exhaust plate 2 are filter mesh structures, and the mesh count of exhaust plate 1 is greater than that of exhaust plate 2. There are two push cylinders, which are respectively located on two opposing inner walls of the right cavity. The positions of the two push cylinders correspond one-to-one with the positions of the two exhaust plates. The piston rods of the push cylinders are respectively connected to the exhaust plates at the corresponding positions. There are two purification air pipes, which are respectively located on the opposite side walls of the right cavity, and the positions of the purification air pipes correspond to the openings at the bottom of the V-shaped box.

2. The vehicle frame welding fume purification and treatment device as described in claim 1, characterized in that, The spray system includes: A water tank with a water pump is located in the left cavity. A water spray ring disc is movably fitted on the outer peripheral wall of the air inlet pipe, and a water tank with a water pump is connected to the water spray ring disc via a flexible hose. The spray head is provided in multiple ways, and the multiple spray heads are evenly distributed circumferentially on the bottom surface of the spray ring disc.

3. The vehicle frame welding fume purification and treatment device as described in claim 2, characterized in that, The air inlet pipe is located at one end of the left cavity and is coaxially connected to the exhaust pipe and the tail pipe. The outer peripheral wall of the exhaust pipe has multiple exhaust hole groups that correspond one-to-one with the water spray head.

4. The vehicle frame welding fume purification and treatment device as described in claim 3, characterized in that, The exhaust port assembly includes: Multiple exhaust ports are spaced apart along the axial length of the exhaust pipe.

5. The vehicle frame welding fume purification and treatment device as described in claim 4, characterized in that, The airflow regulation components include: The lifting cylinder is located on the bottom surface of the left cavity; A solid plug tube is coaxially mounted on the piston rod of the lifting cylinder, with one end of the solid plug tube away from the lifting cylinder being movably inserted into the tailpipe.

6. The vehicle frame welding fume purification and treatment device as described in claim 5, characterized in that, A sliding plate is horizontally mounted on the bottom surface of the left cavity, and the lifting cylinder is mounted on the sliding plate.

7. The vehicle frame welding fume purification and treatment device as described in claim 1, characterized in that, A sealing plate is horizontally installed on the top opening of the V-shaped box. The outer peripheral wall of the sealing plate is connected to the inner peripheral wall of the right cavity. The top opening of the V-shaped box is located on the sealing plate.

8. The vehicle frame welding fume purification and treatment device as described in claim 1, characterized in that, A second sealing plate is horizontally installed at the bottom of the V-shaped box. The outer peripheral wall of the second sealing plate is connected to the inner peripheral wall of the right cavity. The bottom opening of the V-shaped box passes through the second sealing plate, and the purification air pipe is located below the second sealing plate.

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