Welding flue gas recovery device

Abstract

The utility model provides a welding flue gas recovery device which comprises a main body and an exhaust pipe, a cavity is formed in the main body, the main body is divided into a main body section and a flue gas collecting section, the exhaust pipe is arranged at the top end of the main body section, a fan assembly is arranged in the exhaust pipe, and the fan assembly is connected with the exhaust pipe. A first open groove is formed in the outer circle face of the main body section of the main body, a filter plate is slidably connected into the first open groove, a limiting assembly is arranged on the outer circle face of the main body and used for limiting sliding of the filter plate relative to the first open groove, and the end, provided with the exhaust pipe, of the main body section of the main body is rotationally connected with a wall fixing assembly. According to the scheme, after the filter plate sliding relative to the first open groove is arranged in the main body, the filter plate is fixed through the limiting assembly, and the fan blades rotating with the rotating shaft as the shaft core are arranged in the exhaust pipe, welding smoke is sucked into the main body through the bottom end of the main body and filtered through the filter plate, and therefore the purpose of improving the quality of the recycled welding smoke is achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of fume purification equipment, in particular to a welding fume recovery device. Background Art

[0002] The welding process generates a large amount of fume, which contains harmful gases that can harm the environment and human health. To address this issue, the conventional approach is to install large fans on the ceiling of the workshop to exhaust the fume into the atmosphere through gas convection. However, due to the uneven welding work and the large workshop space, large fans are often ineffective in exhausting the fume. Therefore, a small fume recovery device is required for each welding unit.

[0003] For example, a Chinese patent discloses a "Welding Fume Recovery and Purification Device" (Patent No. CN106076014A). This device comprises a frame and a fume recovery and purification device mounted on the frame. The device comprises a housing, a turbulence capture layer, a fume filtration layer, a fume adsorption layer, and a fume ventilation layer arranged sequentially from bottom to top within the housing. Gaps are provided between the turbulence capture layer, the fume filtration layer, the fume adsorption layer, and the fume ventilation layer. The turbulence capture layer, the fume filtration layer, the fume adsorption layer, and the fume ventilation layer are detachably connected within the housing. This patent offers the advantages of low cost, simple structure, and excellent fume recovery and purification performance.

[0004] However, in the welding fume recovery process described above, it is difficult to ensure the stability of the filter plate during the filtration process, which results in the generation of gaps, and thus the filtration effect is affected. Utility Model Content

[0005] (1) Technical problems solved

[0006] In view of the deficiencies in the prior art, the present invention provides a welding fume recovery device, which solves the problems raised in the above background technology.

[0007] (2) Technical solution

[0008] To achieve the above objectives, the present invention is implemented through the following technical solutions: a welding fume recovery device, characterized in that: it includes a main body and an exhaust pipe, a cavity is provided in the main body, the main body is divided into a main body section and a fume collection section, the exhaust pipe is arranged at the top of the main body section, a fan assembly is provided in the exhaust pipe, a first slot is provided on the outer circular surface of the main body section, a filter plate is slidably connected in the first slot, a limiting assembly is provided on the outer circular surface of the main body, the limiting assembly is used to limit the sliding of the filter plate relative to the first slot, and one end of the main body section is rotatably connected to a wall fixing assembly.

[0009] Preferably, the limit assembly includes two limit blocks and two first screws, two threaded holes are provided on the filter plate, the limit block is fixedly connected to the outer cylindrical surface of the main body section, an opening is provided on the limit block, a first external thread is provided on the outer cylindrical surface of the first screw, the first screw is threadedly connected to the threaded hole of the filter plate and the opening of the limit block, and a knob is fixedly connected to one end of the first screw close to the limit block.

[0010] Preferably, the wall fixing assembly includes a sliding rod and a second screw, the sliding rod is rotatably connected to the main section of the main body, a sliding cavity is opened in the sliding rod, a spring is arranged in the sliding cavity, one end of the spring is fixedly connected to the sliding cavity, and the other end of the spring is fixedly connected to the second screw, and a second external thread is arranged on the outer circular surface of the second screw.

[0011] Preferably, the fan assembly includes a limiting rod and a rotating shaft, the limiting rod is fixedly connected to the inner circular surface of the exhaust pipe, the rotating shaft is rotatably connected to the limiting rod, the rotating shaft is electrically connected to a driving source, and a plurality of fan blades are fixedly connected to the outer circular surface of the rotating shaft.

[0012] Preferably, the width of the filter plate is smaller than the width of the first slot.

[0013] Preferably, the fan blades are arranged in equal arcs with the rotating shaft as the axis core.

[0014] (3) Beneficial effects

[0015] The utility model provides a welding fume recovery device. It has the following beneficial effects:

[0016] 1. This solution achieves the purpose of improving the quality of recovered welding fume by providing a filter plate that slides relative to the first slot in the main body, fixing the filter plate through a limit assembly, and providing a fan blade that rotates with a rotating shaft as the axis core in the exhaust pipe, so that the bottom end of the main body draws the welding fume into the main body and filters it through the filter plate, thereby achieving the purpose of improving the quality of recovered welding fume. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a schematic diagram of the main structure of the utility model;

[0018] Figure 2 This is a schematic diagram of the top structure of the utility model;

[0019] Figure 3 It is a schematic diagram of the cross-sectional structure of the present utility model.

[0020] In the figure: 11, main body; 12, exhaust pipe; 13, first slot; 14, filter plate; 15, limit block; 16, first screw; 17, first external thread; 18, knob; 21, limit rod; 22, rotating shaft; 23, fan blade; 24, sliding rod; 25, sliding chamber; 26, spring; 27, second screw; 28, second external thread. DETAILED DESCRIPTION

[0021] The present invention provides a welding fume recovery device. Figure 1-3 As shown, it includes a main body 11, an exhaust pipe 12, a first slot 13, a filter plate 14, a limit block 15, a first screw 16, a first external thread 17, a knob 18, a limit rod 21, a rotating shaft 22, a fan blade 23, a sliding rod 24, a sliding cavity 25, a spring 26, a second screw 27, and a second external thread 28.

[0022] like Figure 1-3 As shown, it includes a main body 11 and an exhaust pipe 12. A cavity is provided in the main body 11. The main body 11 is divided into a main body section and a smoke collection section. The exhaust pipe 12 is arranged at the top of the main body section of the main body 11. A fan assembly is provided in the exhaust pipe 12. A first slot 13 is provided on the outer circular surface of the main body section of the main body 11. A filter plate 14 is slidably connected in the first slot 13. A limiting component is provided on the outer circular surface of the main body 11. The limiting component is used to limit the sliding of the filter plate 14 relative to the first slot 13. One end of the main body section of the main body 11 with the exhaust pipe 12 is rotatably connected to a wall fixing component. The width of the filter plate 14 is smaller than the width of the first slot 13. A sealing ring is provided at the connection between the first slot 13 and the filter plate 14.

[0023] The limit assembly includes two limit blocks 15 and two first screws 16. Two threaded holes are opened on the filter plate 14. The limit block 15 is fixedly connected to the outer cylindrical surface of the main section of the main body 11. An opening is opened on the limit block 15. A first external thread 17 is provided on the outer cylindrical surface of the first screw 16. The first screw 16 is threadedly connected to the threaded hole of the filter plate 14 and the opening of the limit block 15. The end of the first screw 16 close to the limit block 15 is fixedly connected to the knob 18. The fan assembly includes a limit rod 21 and a rotating shaft 22. The limit rod 21 is fixedly connected to the inner cylindrical surface of the exhaust pipe 12. The rotating shaft 22 is rotatably connected to the limit rod 21. The rotating shaft 22 is electrically connected to a driving source. A number of fan blades 23 are fixedly connected to the outer cylindrical surface of the rotating shaft 22.

[0024] The wall fixing assembly includes a sliding rod 24 and a second screw 27. The sliding rod 24 is rotatably connected to the main body 11. A sliding cavity 25 is provided in the sliding rod 24. A spring 26 is provided in the sliding cavity 25. One end of the spring 26 is fixedly connected to the sliding cavity 25, and the other end of the spring 26 is fixedly connected to the second screw 27. A second external thread 28 is provided on the outer circular surface of the second screw 27. The fan blade 23 is set with an arc equal to the axis core of the rotating shaft 22. The spring 26 can also play a role in shock and vibration prevention.

[0025] When the present scheme is used to recover welding fume, first, the main body 11 is fixed to the threaded hole of the wall or workbench by rotating the wall fixing assembly, then, the filter plate 14 is inserted into the first slot 13, and the first screw 16 is slidably inserted into the opening of the limit block 15 and the threaded hole of the filter plate 14, and the knob 18 is rotated so that the first screw 16 fixes the filter plate 14 in the first slot 13, and finally, the driving source electrically connected to the rotating shaft 22 is started, so that the rotating shaft 22 drives the fan blade 23 to rotate with the rotating shaft 22 as the axis core, and the fan blade 23 generates an airflow from the main body 11 toward the exhaust pipe 12, so that the welding fume flows toward the exhaust pipe 12, and the welding fume is filtered by the filter plate 14 to filter out the filtrate in the welding fume, thereby achieving the effect of recovering harmful substances in the welding fume.

[0026] Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A welding fume recovery device, characterized by: The invention comprises a main body (11) and an exhaust pipe (12), wherein a cavity is provided in the main body (11), the main body (11) is divided into a main body section and a smoke collection section, the exhaust pipe (12) is arranged at the top end of the main body section of the main body (11), a fan assembly is arranged in the exhaust pipe (12), a first slot (13) is provided on the outer circular surface of the main body section of the main body (11), a filter plate (14) is slidably connected in the first slot (13), a limiting assembly is provided on the outer circular surface of the main body (11), the limiting assembly is used to limit the sliding of the filter plate (14) relative to the first slot (13), and one end of the main body section of the main body (11) is rotatably connected to a wall fixing assembly.

2. A welding fume recovery device according to claim 1, characterized in that: The limiting assembly comprises two limiting blocks (15) and two first screw rods (16); two threaded holes are provided on the filter plate (14); the limiting block (15) is fixedly connected to the outer circumferential surface of the main body section of the main body (11); an opening is provided on the limiting block (15); a first external thread (17) is provided on the outer circumferential surface of the first screw rod (16); the first screw rod (16) is threadedly connected to the threaded hole of the filter plate (14) and the opening of the limiting block (15); a knob (18) is fixedly connected to one end of the first screw rod (16) close to the limiting block (15).

3. A welding fume recovery device according to claim 2, characterized in that: The wall fixing assembly includes a sliding rod (24) and a second screw rod (27). The sliding rod (24) is rotatably connected to the main body section of the main body (11). A sliding cavity (25) is provided in the sliding rod (24). A spring (26) is provided in the sliding cavity (25). One end of the spring (26) is fixedly connected to the sliding cavity (25), and the other end of the spring (26) is fixedly connected to the second screw rod (27). A second external thread (28) is provided on the outer circumferential surface of the second screw rod (27).

4. A welding fume recovery device according to claim 2, characterized in that: The fan assembly comprises a limiting rod (21) and a rotating shaft (22), wherein the limiting rod (21) is fixedly connected to the inner circumferential surface of the exhaust pipe (12), and the rotating shaft (22) is rotatably connected to the limiting rod (21). The rotating shaft (22) is electrically connected to a driving source, and a plurality of fan blades (23) are fixedly connected to the outer circumferential surface of the rotating shaft (22).

5. The welding fume recovery device according to claim 1, characterized in that: The width of the filter plate (14) is smaller than the width of the first slot (13).

6. A welding fume recovery device according to claim 4, characterized in that: The fan blades (23) are arranged in equal arcs with the rotating shaft (22) as the axis core.

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