Portable welding fume purification device

Abstract

The utility model provides a portable welding fume purification device, which relates to the field of welding fume purification, and comprises a welding gun and a treatment box, the bottom of the treatment box is fixedly connected with a base, the inner cavity of the base is fixedly connected with a centrifugal fan, and the air outlet end of the centrifugal fan extends to the outside of the base; the suction head can be stored in the storage box, the storage box can be closed by the box cover, the suction head can be protected when not used, meanwhile, the whole device is easy to carry and suitable for various movable welding operation environments by matching with the design of the straps, the portability during use is improved, and the suction head can be conveniently taken out through the design of the spring tube, the suction head and the tightening sleeve. The suction head can be tightly attached to a welding point of a welding gun, the smoke dust collecting efficiency is improved, a double filtering system is formed through the polyester fiber filter element and the activated carbon filter element arranged in the treatment box, particulate matter and harmful gas in the welding smoke dust can be effectively removed, and therefore the smoke dust purifying quality can be improved.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the field of welding fume purification, specifically a portable welding fume purification device. BACKGROUND

[0002] In the welding operation process, a large amount of smoke will be produced due to the high-temperature melting and evaporation of welding materials, which will not only pollute the environment but also seriously threaten the health of welders, and thus a fume purification device will be used to treat the welding fume.

[0003] In the prior art, the personnel need to carry the purification device to the welding position first, then take the welding torch and the dust cover at the same time to rotate the welding point, and then in the welding process, the dust cover will suck the fume into the fume purification device, and the particles in the fume will be filtered by the filter screen inside the device to achieve the purification of the fume.

[0004] Therefore, the utility model provides a portable welding fume purification device to solve the above problems. UTILITY MODEL CONTENTS

[0005] To solve the above technical problems, the utility model provides the following technical scheme:

[0006] A portable welding fume purification device, comprising a welding torch and a treatment box, the bottom of the treatment box is fixedly connected with a base, and the inner cavity of the base is fixedly connected with a centrifugal fan, the gas outlet of the centrifugal fan extends to the outside of the base, and the gas inlets on both sides of the centrifugal fan extend to the inner cavity of the treatment box, polyester fiber filter cartridges are arranged on both sides of the inner cavity of the treatment box, and activated carbon filter cartridges are arranged in the inner cavities of the polyester fiber filter cartridges, a storage box is arranged on the top of the treatment box, a box cover is movably connected to the top of the storage box through a damping hinge shaft, a spring pipe is in communication with the front of the treatment box, a suction head is in communication with the other end of the spring pipe, a tightening sleeve is fixedly connected to the bottom of the suction head, the tightening sleeve is sleeved on the surface of the welding torch, and a shoulder strap is fixedly connected to the surface of the treatment box.

[0007] Further, in the utility model, the inner wall of the tightening sleeve is fixedly connected with a heat insulation pad, the inner wall of the heat insulation pad is provided with a convex point, and the inner wall of the heat insulation pad is in contact with the welding torch.

[0008] Furthermore, in this utility model, a support plate is fixedly connected to the upper end of the inner cavity of the processing box, and an electric push rod is fixedly connected to the inner cavity of the support plate. A scraper ring is fixedly connected to the output end of the electric push rod through a connecting plate. The scraper ring is sleeved on the surface of the polyester fiber filter element and is in contact with the surface of the polyester fiber filter element.

[0009] Furthermore, in this utility model, a connecting ring is fixedly connected to the bottom of the polyester fiber filter element, and a fixing ring is fixedly connected to the bottom of the inner cavity of the treatment box. The bottom of the connecting ring extends into the inner cavity of the fixing ring and is threadedly connected to the inner cavity of the fixing ring.

[0010] Furthermore, in this utility model, the bottom of the storage box is provided with a slot, the top of the processing box is fixedly connected with a sealing strip, the top of the processing box extends into the inner cavity of the slot and is movably connected to the inner cavity of the slot, and the sealing strip on the top of the processing box contacts the inner wall of the slot.

[0011] Beneficial effects: This utility model has the following beneficial effects:

[0012] This invention features a suction head that can be stored inside a storage box, with a lid that can close to protect the suction head when not in use. The addition of a shoulder strap makes the entire device easy to carry, adapting to various mobile welding environments and improving portability. The design of the spring tube, suction head, and tightening sleeve allows the suction head to closely conform to the welding point of the welding torch, improving fume collection efficiency. A dual filtration system, consisting of a polyester fiber filter and an activated carbon filter inside the treatment box, effectively removes particulate matter and harmful gases from welding fumes, thus improving the quality of fume purification. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the structure of this utility model;

[0014] Figure 2 This is a cross-sectional view of the processing box of this utility model, showing its structure separated from the polyester fiber filter element;

[0015] Figure 3 This is a schematic diagram of the structure of the spring tube in its stored state according to this utility model;

[0016] Figure 4 This is a schematic diagram of the connection structure between the base and the centrifugal fan of this utility model;

[0017] Figure 5 This is a schematic diagram of the structure of the storage box of this utility model from a downward view;

[0018] Figure 6 This is a schematic diagram of the separated structure of the polyester fiber filter element and the activated carbon filter element of this utility model;

[0019] Figure 7 This is a utility model Figure 1 A magnified schematic diagram of the structure at point A in the middle.

[0020] In the picture:

[0021] 1. Welding torch; 2. Processing box; 3. Heat insulation pad; 4. Base; 5. Centrifugal fan; 6. Polyester fiber filter element; 7. Activated carbon filter element; 8. Storage box; 9. Box lid; 10. Fastening sleeve; 11. Spring tube; 12. Suction head; 13. Shoulder strap; 14. Electric push rod; 15. Scraper ring; 16. Connecting ring; 17. Fixing ring; 18. Slot. Detailed Implementation

[0022] To better understand the technical content of this utility model, specific embodiments are described below in conjunction with the accompanying drawings. Various aspects of this utility model are described in this disclosure with reference to the accompanying drawings, which illustrate numerous illustrative embodiments. The embodiments of this disclosure are not necessarily defined to include all aspects of this utility model. It should be understood that the various concepts and embodiments described above, as well as those described in more detail below, can be implemented in any of many ways, because the concepts and embodiments disclosed in this utility model are not limited to any particular implementation. Furthermore, some aspects of this utility model can be used alone or in any suitable combination with other aspects disclosed in this utility model.

[0023] Example 1

[0024] like Figures 1-7 As shown, this is the first embodiment of the present invention. This embodiment provides a portable welding fume purification device, including a welding torch 1 and a treatment box 2. A base 4 is fixedly connected to the bottom of the treatment box 2, and a centrifugal fan 5 is fixedly connected to the inner cavity of the base 4. The air outlet of the centrifugal fan 5 extends to the outside of the base 4, and the air inlets on both sides of the centrifugal fan 5 extend to the inner cavity of the treatment box 2. Polyester fiber filter elements 6 are provided on both sides of the inner cavity of the treatment box 2, and activated carbon filter elements 7 are provided in the inner cavity of the polyester fiber filter elements 6. A storage box 8 is provided on the top of the treatment box 2, and a box cover 9 is movably connected to the top of the storage box 8 through a damping pivot. A spring tube 11 is connected to the front of the treatment box 2, and a suction head 12 is connected to the other end of the spring tube 11. A tightening sleeve 10 is fixedly connected to the bottom of the suction head 12, and the tightening sleeve 10 is fitted onto the surface of the welding torch 1. A shoulder strap 13 is fixedly connected to the surface of the treatment box 2.

[0025] like Figures 1-7As shown, the suction head 12 can be stored inside the storage box 8, and the box cover 9 can close the storage box 8, thus protecting the suction head 12 when not in use. At the same time, the design of the shoulder strap 13 makes the whole device easy to carry and adaptable to various mobile welding operation environments, improving portability during use. By putting the tightening sleeve 10 on the welding gun 1, the suction head 12 can be closely attached to the welding point of the welding gun 1, thereby improving the efficiency of fume collection. The centrifugal fan 5 can make the suction head 12 suck up the welding fume generated by welding and transfer it to the inner cavity of the spring tube 11. The spring tube 11 then transfers the fume to the processing box 2. The polyester fiber filter 6 and activated carbon filter 7 set in the processing box 2 form a dual filtration system, which can effectively remove particulate matter and harmful gases in the welding fume, thereby improving the quality of fume purification.

[0026] Example 2

[0027] Reference Figure 1 , 2 6 and 7 are the second embodiment of this utility model, which is based on the previous embodiment.

[0028] In this embodiment, a heat insulation pad 3 is fixedly connected to the inner wall of the tightening sleeve 10. The inner wall of the heat insulation pad 3 is provided with protrusions, and the inner wall of the heat insulation pad 3 is in contact with the welding gun 1.

[0029] A support plate is fixedly connected to the upper end of the inner cavity of the treatment box 2, and an electric push rod 14 is fixedly connected to the inner cavity of the support plate. A scraper ring 15 is fixedly connected to the output end of the electric push rod 14 through a connecting plate. The scraper ring 15 is sleeved on the surface of the polyester fiber filter element 6 and is in contact with the surface of the polyester fiber filter element 6.

[0030] like Figure 1 , 2 As shown in Figures 6 and 7, the heat insulation pad 3 is in direct contact with the welding torch 1, which effectively isolates the high temperature generated by the welding torch 1, protects the tightening sleeve 10 from heat damage, and extends its service life. At the same time, the protrusion design on the inner wall of the heat insulation pad 3 increases the contact area and friction with the welding torch 1, improves the stability of the tightening sleeve 10, and prevents slippage. When the polyester fiber filter element 6 is filtering dust, the electric push rod 14 drives the scraper ring 15 to move along the surface of the polyester fiber filter element 6 through the connecting plate. During the movement, the scraper ring 15 scrapes the surface of the filter element to remove accumulated dust and blockages, realizing automatic cleaning of the surface of the polyester fiber filter element 6 and maintaining the permeability and filtration efficiency of the polyester fiber filter element 6.

[0031] Example 3

[0032] Reference Figure 1 , 2 3, 5 and 6 are the third embodiment of this utility model, which is based on the first two embodiments.

[0033] In this embodiment, a connecting ring 16 is fixedly connected to the bottom of the polyester fiber filter element 6, and a fixing ring 17 is fixedly connected to the bottom of the inner cavity of the treatment box 2. The bottom of the connecting ring 16 extends into the inner cavity of the fixing ring 17 and is threadedly connected to the inner cavity of the fixing ring 17.

[0034] The bottom of the storage box 8 is provided with a slot 18, and the top of the processing box 2 is fixedly connected with a sealing strip. The top of the processing box 2 extends into the inner cavity of the slot 18 and is movably connected to the inner cavity of the slot 18. The sealing strip on the top of the processing box 2 contacts the inner wall of the slot 18.

[0035] like Figure 1 , 2 As shown in Figures 3, 5, and 6, the threaded connection design of the connecting ring 16 and the fixing ring 17 allows for quick and easy disassembly and replacement of the polyester fiber filter element 6 and the activated carbon filter element 7. During disassembly and assembly, the connecting ring 16 is rotated to separate it from the fixing ring 17, allowing the polyester fiber filter element 6 and the activated carbon filter element 7 to be removed. When replacing a new filter element, the connecting ring 16 is aligned with the fixing ring 17, rotated, and tightened to secure it. The design of the slot 18 and the sealing strip creates a tight seal between the storage box 8 and the treatment box 2, preventing unfiltered dust from leaking directly into the external environment through gaps. At the same time, the slot 18 facilitates the fixing and disassembly of the treatment box 2 and the storage box 8, enabling the opening and closing of the treatment box 2 and facilitating the cleaning of its interior.

[0036] In use, first, the tightening sleeve 10 is fitted onto the welding torch 1. The position of the tightening sleeve 10 can be adjusted to ensure that the suction head 12 fits tightly against the welding point of the welding torch 1. When the welding torch 1 is welding, the centrifugal fan 5 is activated, generating a strong suction force. This allows the suction head 12 to draw the welding fumes into the inner cavity of the spring tube 11. The spring tube 11 then transports the fumes into the processing chamber 2. The fumes are then filtered by a dual filtration system formed by the polyester fiber filter element 6 and the activated carbon filter element 7 inside the processing chamber 2. The fumes first undergo preliminary filtration through the polyester fiber filter element 6, removing most of the particulate matter. Simultaneously, the electric push rod 14 drives the scraper ring 15 to scrape the surface of the polyester fiber filter element 6, removing accumulated dust and blockages, thus maintaining the cleanliness of the polyester fiber filter element 6. The filter ensures good permeability and filtration efficiency. Then, the fumes enter the activated carbon filter element 7 for deep filtration to adsorb harmful gases, thereby effectively removing particulate matter and harmful gases from the welding fumes, thus improving the quality of fume purification. Finally, the filtered clean air is discharged into the external environment through the outlet of the centrifugal fan 5. When welding is completed and storage is required, the clamping sleeve 10 is separated from the welding torch 1, then the suction head 12 is taken out, and the box cover 9 is pulled to open the storage box 8. Then, the suction head 12 is placed inside the storage box 8, and the storage box 8 is closed again by the box cover 9. This can protect the suction head 12 when not in use. When the device needs to be taken away, the personnel can wear the shoulder strap 13 to carry the device, making the whole device easy to carry and adaptable to various mobile welding operation environments, thus improving the portability of use.

[0037] All standard parts used in this application can be purchased from the market, and can be customized according to the description and drawings. The specific connection methods of each part adopt conventional methods such as bolts, rivets, and welding that are mature in the prior art. The machinery, parts and equipment adopt conventional models in the prior art. The control method is automatic control through a controller. The control circuit of the controller can be implemented by simple programming by those skilled in the art and is common knowledge in the field. Since this application is mainly used to protect mechanical devices, the control method and circuit connection will not be explained in detail in this application.

[0038] Although the present invention has been disclosed above with reference to preferred embodiments, it is not intended to limit the present invention. Those skilled in the art to which this invention pertains can make various modifications and refinements without departing from the spirit and scope of the present invention. Therefore, the scope of protection of this invention shall be determined by the claims.

Claims

1. A portable welding fume purification device, comprising a welding torch (1) and a treatment box (2), characterized in that: The bottom of the processing box (2) is fixedly connected to a base (4), and a centrifugal fan (5) is fixedly connected to the inner cavity of the base (4). The outlet of the centrifugal fan (5) extends to the outside of the base (4), and the inlet ends on both sides of the centrifugal fan (5) extend into the inner cavity of the processing box (2). Polyester fiber filter elements (6) are provided on both sides of the inner cavity of the processing box (2), and activated carbon filter elements (7) are provided in the inner cavity of the polyester fiber filter elements (6). (2) has a storage box (8) on top, and the top of the storage box (8) is movably connected to a box cover (9) via a damping pivot. The front of the processing box (2) is connected to a spring tube (11), and the other end of the spring tube (11) is connected to a suction head (12). The bottom of the suction head (12) is fixedly connected to a tightening sleeve (10), and the tightening sleeve (10) is fitted onto the surface of the welding gun (1). The surface of the processing box (2) is fixedly connected to a shoulder strap (13).

2. The portable welding fume purification device as described in claim 1, characterized in that: The inner wall of the tightening sleeve (10) is fixedly connected to a heat insulation pad (3), the inner wall of the heat insulation pad (3) is provided with protrusions, and the inner wall of the heat insulation pad (3) is in contact with the welding gun (1).

3. The portable welding fume purification device as described in claim 1, characterized in that: The upper end of the inner cavity of the processing box (2) is fixedly connected to a support plate, and the inner cavity of the support plate is fixedly connected to an electric push rod (14). The output end of the electric push rod (14) is fixedly connected to a scraper ring (15) through a connecting plate. The scraper ring (15) is sleeved on the surface of the polyester fiber filter element (6) and is in contact with the surface of the polyester fiber filter element (6).

4. The portable welding fume purification device as described in claim 1, characterized in that: The bottom of the polyester fiber filter element (6) is fixedly connected to a connecting ring (16), and the bottom of the inner cavity of the treatment box (2) is fixedly connected to a fixing ring (17). The bottom of the connecting ring (16) extends into the inner cavity of the fixing ring (17) and is threadedly connected to the inner cavity of the fixing ring (17).

5. The portable welding fume purification device as described in claim 1, characterized in that: The bottom of the storage box (8) is provided with a slot (18), and the top of the processing box (2) is fixedly connected with a sealing strip. The top of the processing box (2) extends into the inner cavity of the slot (18) and is movably connected to the inner cavity of the slot (18). The sealing strip on the top of the processing box (2) contacts the inner wall of the slot (18).

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