Welding fume purification device

Abstract

The utility model discloses a welding fume purifying device which comprises a bottom plate, walking wheels are fixedly installed at the four corners of the bottom of the bottom plate, a push handle is arranged on the outer side of the bottom plate, and a fume collecting mechanism, a purifying mechanism and a controller are arranged on the bottom plate. The smoke dust collecting mechanism comprises a dust suction cover, a dust suction pipe and a negative pressure fan, the purifying mechanism comprises a purifying box, and a primary-efficiency filtering layer, a medium-efficiency filtering layer and a high-efficiency filtering layer are sequentially arranged in the purifying box from left to right. According to the scheme, under the action of a negative pressure fan of the smoke dust collecting mechanism, a dust suction cover and a dust suction pipe collect and convey smoke dust into the purifying mechanism, smoke dust airflow is filtered by the multi-layer filtering mechanism and then is exhausted through an exhaust pipe, it is ensured that purified air can reach the high cleanliness standard, various harmful substances in welding smoke dust are effectively removed, and the environment is protected. And the working environment and the health of operators are protected.

Description

Technical Field

[0001] The utility model relates to the field of welding equipment, and more specifically, to a welding fume purification device. Background Art

[0002] Welding operations generate large amounts of smoke and dust. This smoke contains various metal oxides, harmful gases, and fine particles. If this smoke is released directly into the work environment without effective treatment, it can pose serious health risks to operators, such as respiratory and lung diseases. Furthermore, welding smoke can affect workplace visibility, reduce work efficiency, and potentially contaminate and corrode surrounding equipment and instruments.

[0003] Traditional welding fume treatment methods have numerous limitations. Simple ventilation devices, such as exhaust fans, simply exhaust the fume outdoors without purifying it, which can pollute the surrounding environment. While some existing welding fume purification systems offer some purification capabilities, they still present practical challenges. For example, fume collection devices lack flexibility and cannot adjust their collection range to accommodate changes in welding position and angle. Summary of the Invention

[0004] The purpose of the utility model is to solve the shortcomings of the prior art and to propose a welding fume purification device.

[0005] In order to solve the above problems, the present invention adopts the following technical solutions:

[0006] A welding fume purification device comprises a base plate, wherein four corners of the bottom of the base plate are fixedly mounted with walking wheels, a push handle is provided on the outer side of the base plate, and a fume collection mechanism, a purification mechanism and a controller are provided on the base plate;

[0007] The smoke and dust collection mechanism includes a dust hood, a dust suction pipe and a negative pressure fan, and the purification mechanism includes a purification box, in which a primary filter layer, a medium filter layer and a high efficiency filter layer are arranged in sequence from left to right;

[0008] The dust collection hood is provided with a connecting pipe, the connecting pipe is connected to the dust collection pipe, the dust collection pipe is connected to the left side of the purification box, the negative pressure fan is installed inside the purification box and is located on the right side of the high-efficiency filter layer, and the right side of the purification box is provided with an exhaust pipe connected to the negative pressure fan;

[0009] A height adjustment mechanism is provided on the bottom plate, and the height adjustment mechanism is connected to the dust suction pipe. The dust suction pipe is provided with an angle adjustment mechanism for adjusting the angle of the dust suction hood. The ends of the dust suction pipe close to the dust suction hood and the purification box are both telescopic tubes.

[0010] As a further description of the above technical solution: the height adjustment mechanism includes a hydraulic rod, the cylinder body of the hydraulic rod is fixedly installed on the base plate, the cylinder rod end of the hydraulic rod is fixedly connected to a sleeve 1, and the sleeve 1 is fixedly sleeved on the dust suction pipe.

[0011] As a further description of the above technical solution: the angle adjustment mechanism includes a sleeve two, and the front and rear sides of the sleeve two are fixedly connected with adjustment plates, and the two adjustment plates extend to the front and rear sides of the connecting tube respectively, and the front and rear sides of the connecting tube are fixedly connected with rotating shafts, and the two rotating shafts are respectively rotatably connected to the adjustment plates, and a servo rotary motor is fixedly installed on one of the adjustment plates, and the output shaft of the servo rotary motor is fixedly connected to the rotating shaft.

[0012] As a further description of the above technical solution: the primary filter layer is a metal mesh filter layer or a non-woven fabric filter layer, the medium-efficiency filter layer is a glass fiber filter layer or a polypropylene fiber filter layer, and the high-efficiency filter layer is a HEPA filter layer.

[0013] As a further description of the above technical solution: the purification mechanism also includes a pre-filtration layer arranged before the primary filter layer and an activated carbon filter layer arranged after the high-efficiency filter layer, and the pre-filtration layer is a coarse-pore metal mesh with a filtration pore size larger than that of the primary filter layer.

[0014] As a further description of the above technical solution: the opening shape of the dust hood is circular, and a smoke concentration sensor is embedded in the bottom of the dust hood.

[0015] As a further description of the above technical solution: a cover plate is fixedly installed on the bottom plate, the height adjustment mechanism is located in the cover plate, and an opening for the dust suction pipe to pass through is opened on the cover plate corresponding to the dust suction pipe.

[0016] As a further description of the above technical solution: a sealing plate is provided on the front side of the purification box and is fixedly connected by screws. A plurality of slots are provided in the purification box, and the primary filter layer, medium-efficiency filter layer, high-efficiency filter layer, pre-filter layer and activated carbon filter layer are respectively inserted into the slots.

[0017] Compared with the prior art, the advantages of the present invention are:

[0018] 1. In this solution, under the action of the negative pressure fan of the fume collection mechanism, the dust hood and dust collection tube collect and transport the fume to the purification mechanism. The fume airflow is filtered by the multi-layer filter mechanism and then discharged through the exhaust duct, ensuring that the purified air can reach a high cleanliness standard, effectively removing various harmful substances in the welding fume, and protecting the working environment and the health of operators.

[0019] 2. This solution adds a height adjustment mechanism so that the dust hood can adapt to welding operations at different heights, ensuring that welding fumes can be effectively collected; the angle adjustment mechanism can adjust the angle of the dust hood according to changes in the position and direction of the welding point, so that the generated fumes can be collected to the greatest extent, thereby improving the efficiency and comprehensiveness of fume collection. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 This is one of the structural diagrams of the present utility model;

[0021] Figure 2 This is the second structural diagram of the present utility model;

[0022] Figure 3 This is a schematic diagram of the structure of the purification mechanism of the utility model;

[0023] Figure 4 This is a schematic diagram of the structure of the adjustment mechanism of the utility model;

[0024] Figure 5 It is a structural schematic diagram of the dust collection hood of the present utility model.

[0025] Description of the numbers in the figure:

[0026] 1. Bottom plate; 2. Travel wheel; 3. Push handle; 4. Smoke and dust collection mechanism; 41. Dust hood; 42. Dust suction pipe; 43. Negative pressure fan; 44. Connecting pipe; 5. Purification mechanism; 51. Purification box; 52. Primary filter layer; 53. Medium filter layer; 54. High efficiency filter layer; 55. Pre-filter layer; 56. Activated carbon filter layer; 57. Slot; 6. Controller; 7. Height adjustment mechanism; 71. Hydraulic rod; 72. Casing 1; 8. Angle adjustment mechanism; 81. Casing 2; 82. Adjustment plate; 83. Rotating shaft; 84. Servo rotary motor; 9. Exhaust duct; 10. Smoke and dust concentration sensor; 11. Cover plate; 12. Opening DETAILED DESCRIPTION

[0027] The following embodiments are used to further describe the specific embodiments of the present invention in conjunction with the accompanying drawings and examples. The following embodiments are only used to more clearly illustrate the technical solutions of the present invention and are not intended to limit the scope of protection of the present invention.

[0028] The technical solutions specifically implemented in this utility model are as follows:

[0029] See also Figure 1-5A welding fume purification device includes a base plate 1 with travel wheels 2 fixedly mounted at the four corners of the base plate 1, a push handle 3 disposed on the outside of the base plate 1, and a fume collection mechanism 4, a purification mechanism 5, and a controller 6 disposed on the base plate 1. This integrated design allows the device to be easily moved around the workplace, allowing operators to flexibly adjust the device's position according to the location of the welding operation, greatly improving the device's operational flexibility.

[0030] like Figure 3 As shown, the purification mechanism 5 includes a purification box 51, which is provided with a primary filter layer 52, a medium filter layer 53, and a high-efficiency filter layer 54 from left to right. This multi-layer filter structure can gradually filter smoke particles of different particle sizes. The primary filter layer 52 can intercept smoke particles of larger particle sizes, the medium filter layer 53 further filters medium-sized particles, and the high-efficiency filter layer 54 efficiently filters small-sized particles, thereby ensuring that the purified air can meet high cleanliness standards, effectively removing various harmful substances in welding smoke, and protecting the working environment and the health of operators.

[0031] Among them, the primary filter layer 52 is a metal mesh filter layer or a non-woven fabric filter layer, which can intercept larger smoke particles; the medium-efficiency filter layer 53 is a glass fiber filter layer or a polypropylene fiber filter layer, which can further filter medium-sized particles; the high-efficiency filter layer 54 is a HEPA filter layer, which can efficiently filter small particles. In addition, the purification mechanism 5 also includes a pre-filter layer 55 arranged before the primary filter layer 52 and an activated carbon filter layer 56 arranged after the high-efficiency filter layer 54. The pre-filter layer 55 is a coarse-pore metal mesh with a filter pore size larger than the primary filter layer 52. It can pre-intercept some larger impurities and some smoke particles, reducing the burden on subsequent filter layers and extending the service life of the filter layers. The activated carbon filter layer 56 can adsorb harmful gases in welding smoke, such as carbon monoxide and nitrogen oxides, further improving the quality of the purified air and making the discharged air cleaner and safer. This multi-layer filtration structure design can gradually filter smoke particles of different particle sizes, ensuring that the purified air can reach a high cleanliness standard, effectively removing various harmful substances in welding smoke, and protecting the working environment and the health of operators.

[0032] like Figure 1-3As shown, the smoke collection mechanism 4 includes a dust hood 41, a dust collection pipe 42, and a negative pressure fan 43. The dust hood 41 is provided with a connecting pipe 44, which is connected to the dust collection pipe 42. The dust collection pipe 42 is connected to the left side of the purification box 51. The negative pressure fan 43 is installed inside the purification box 51 and is located to the right of the high-efficiency filter layer 54. The right side of the purification box 51 is provided with an exhaust pipe 9 connected to the negative pressure fan 43. Under the action of the negative pressure fan 43, the dust hood 41 sends the collected smoke and dust into the purification box 51 through the dust collection pipe 42. The airflow is filtered through multiple filter layers and then discharged through the exhaust pipe 9. This reasonable airflow layout allows the smoke and dust to pass through each filter layer in an orderly manner, improves the efficiency and effect of filtration, and avoids the situation where some smoke and dust are discharged without being fully filtered due to turbulent airflow.

[0033] like Figure 2 As shown, the base plate 1 is equipped with a height adjustment mechanism 7 connected to the dust collection pipe 42. The dust collection pipe 42 is equipped with an angle adjustment mechanism 8 for adjusting the angle of the dust hood 41. The ends of the dust collection pipe 42 near the dust collection hood 41 and the purification box 51 are telescopic tubes, ensuring the adjustability of the dust collection hood 41. The height adjustment mechanism 7 is connected to the dust collection pipe 42, allowing the height of the dust collection pipe 42 to be adjusted, thereby changing the height of the dust collection hood 41. This feature allows the dust collection hood 41 to adapt to welding operations at different heights and ensures effective collection of welding fumes. The angle adjustment mechanism 8 is provided on the dust collection pipe 42 to adjust the angle of the dust collection hood 41. During the actual welding process, the position and direction of the weld point may change continuously. The adjustable angle of the dust collection hood 41 ensures that the generated fumes are collected to the greatest extent possible regardless of the weld point angle, improving the efficiency of fume collection.

[0034] Specifically, the height adjustment mechanism 7 includes a hydraulic rod 71, the cylinder of which is fixedly mounted on the base plate 1. The end of the hydraulic rod 71 is fixedly connected to a sleeve 72, which is fixedly sleeved on the dust collection tube 42. This structure allows the height of the dust collection tube 42 to be easily adjusted, thereby changing the height of the dust collection hood 41.

[0035] Specifically, such as Figure 2 、 4As shown, the angle adjustment mechanism 8 includes a second sleeve 81, with adjustment plates 82 fixedly connected to the front and rear sides of the second sleeve 81. The two adjustment plates 82 extend to the front and rear sides of the connecting tube 44, respectively. The front and rear sides of the connecting tube 44 are fixedly connected to a rotating shaft 83, and the two rotating shafts 83 are rotatably connected to the adjustment plates 82. A servo rotary motor 84 is fixedly mounted on one of the adjustment plates 82, and the output shaft of the servo rotary motor 84 is fixedly connected to the rotating shaft 83. The angle of the dust hood 41 can be precisely adjusted by driving the servo rotary motor 84. During the welding process, the position and direction of the welding point often change. The adjustability of the angle of the dust hood 41 ensures that the generated smoke and dust can be collected to the greatest extent possible regardless of the angle of the welding point, thereby improving the efficiency and comprehensiveness of smoke and dust collection.

[0036] In addition, if Figure 5 As shown, the opening of the dust hood 41 is circular, and a smoke concentration sensor 10 is embedded in the bottom of the dust hood 41. This sensor can monitor the smoke concentration near the dust hood 41 in real time. During the welding process, the amount of smoke generated may fluctuate with changes in factors such as the welding process and welding materials. The smoke concentration sensor 10 feeds the detected information back to the controller 6. The controller 6 can adjust the speed of the negative pressure fan 43, the height and angle of the dust hood 41, and other parameters based on the changes in smoke concentration, thereby achieving more intelligent and precise smoke collection, improving smoke collection efficiency, and also helping to save energy.

[0037] like Figure 1 、 2 As shown, a cover plate 11 is fixedly mounted on the base plate 1, and the height adjustment mechanism 7 is located within the cover plate 11. The cover plate 11 has an opening 12 corresponding to the dust suction pipe 42 for the dust suction pipe 42 to pass through. The provision of the cover plate 11 provides isolation and protection for the height adjustment mechanism 7, preventing collision and damage to the height adjustment mechanism 7 by external objects during operation. It also avoids safety accidents caused by the operator accidentally touching the height adjustment mechanism 7, thereby improving the safety and stability of the equipment.

[0038] Further, such as Figure 1 、 3 As shown, a sealing plate is provided on the front side of the purification box 51, which is fixed with screws. A plurality of slots 57 are provided within the purification box 51, into which the primary filter layer 52, the medium-efficiency filter layer 53, the high-efficiency filter layer 54, the pre-filter layer 55, and the activated carbon filter layer 56 are respectively inserted. This structural design makes it very convenient to replace the filter layer. When the filter layer reaches the end of its service life or needs to be cleaned, the operator simply needs to open the sealing plate, easily remove the old filter layer from the slot 57, insert the new filter layer, and then close the sealing plate. This greatly shortens equipment maintenance time and improves equipment efficiency.

[0039] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the technical principles of the present invention. These improvements and modifications should also be regarded as within the scope of protection of the present invention.

Claims

1. A welding fume purification device, comprising a base plate (1), wherein four corners of the bottom of the base plate (1) are fixedly mounted with walking wheels (2), and a push handle (3) is provided on the outer side of the base plate (1), characterized in that: The base plate (1) is provided with a smoke and dust collection mechanism (4), a purification mechanism (5) and a controller (6); The smoke and dust collection mechanism (4) includes a dust hood (41), a dust collection pipe (42) and a negative pressure fan (43); the purification mechanism (5) includes a purification box (51); and the purification box (51) is provided with a primary filter layer (52), a medium filter layer (53) and a high-efficiency filter layer (54) in sequence from left to right. The dust collection hood (41) is provided with a connecting pipe (44), the connecting pipe (44) is connected to the dust collection pipe (42), the dust collection pipe (42) is communicated with the left side of the purification box (51), the negative pressure fan (43) is installed inside the purification box (51) and is located on the right side of the high-efficiency filter layer (54), and the right side of the purification box (51) is provided with an exhaust pipe (9) communicated with the negative pressure fan (43); The bottom plate (1) is provided with a height adjustment mechanism (7), the height adjustment mechanism (7) is connected to the dust suction pipe (42), the dust suction pipe (42) is provided with an angle adjustment mechanism (8) for adjusting the angle of the dust suction cover (41), and the ends of the dust suction pipe (42) close to the dust suction cover (41) and the purification box (51) are both telescopic tubes; The opening of the dust hood (41) is circular in shape, and a smoke concentration sensor (10) is embedded and installed at the bottom of the dust hood (41); A sealing plate fixedly connected by screws is provided on the front side of the purification box (51), and a plurality of slots (57) are provided in the purification box (51), and the primary filter layer (52), the medium-efficiency filter layer (53), the high-efficiency filter layer (54), the pre-filter layer (55) and the activated carbon filter layer (56) are respectively inserted into the slots (57).

2. The welding fume purification device according to claim 1, characterized in that: The height adjustment mechanism (7) comprises a hydraulic rod (71), the cylinder body of the hydraulic rod (71) is fixedly mounted on the base plate (1), the cylinder rod end of the hydraulic rod (71) is fixedly connected to a sleeve 1 (72), and the sleeve 1 (72) is fixedly sleeved on the dust suction pipe (42).

3. The welding fume purification device according to claim 2, characterized in that: The angle adjustment mechanism (8) includes a second sleeve (81), and the front and rear sides of the second sleeve (81) are fixedly connected to adjustment plates (82). The two adjustment plates (82) extend to the front and rear sides of the connecting tube (44), respectively. The front and rear sides of the connecting tube (44) are fixedly connected to rotating shafts (83). The two rotating shafts (83) are respectively rotatably connected to the adjustment plates (82). A servo rotary motor (84) is fixedly mounted on one of the adjustment plates (82), and the output shaft of the servo rotary motor (84) is fixedly connected to the rotating shaft (83).

4. The welding fume purification device according to claim 3, characterized in that: The primary filter layer (52) is a metal mesh filter layer or a non-woven fabric filter layer, the medium filter layer (53) is a glass fiber filter layer or a polypropylene fiber filter layer, and the high efficiency filter layer (54) is a HEPA filter layer.

5. The welding fume purification device according to claim 4, characterized in that: The purification mechanism (5) further comprises a pre-filter layer (55) arranged before the primary filter layer (52) and an activated carbon filter layer (56) arranged after the high-efficiency filter layer (54); the pre-filter layer (55) is a coarse-pore metal mesh having a larger filtration aperture than the primary filter layer (52).

6. The welding fume purification device according to claim 5, characterized in that: A cover plate (11) is fixedly mounted on the bottom plate (1), the height adjustment mechanism (7) is located inside the cover plate (11), and an opening (12) for the dust suction pipe (42) to pass through is provided on the cover plate (11) corresponding to the dust suction pipe (42).

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