FUME extractor

Abstract

The present invention discloses a fume extractor comprising: a fume extractor body (2) with a tubular structure; the rear end of said fume extractor body (2) being configured with a connecting part (1) capable of detachably fixing to a curved tube (6); a fume-extracting hole (21) being formed on the circumferential surface of said fume extractor body (2), with a high-temperature-resistant transparent glass cover (4) configured above; said high-temperature-resistant transparent glass cover (4) comprising a top inclined glass plate and left and right side glass plates; the bottom surface of said high-temperature-resistant transparent glass cover (4), formed from said top inclined glass plate and left and right side glass plates, being fixed to said fume extractor body (2) at the periphery of said fume-extracting hole (21) by high-temperature-resistant adhesive (5), with the opening of said high-temperature-resistant transparent glass cover (4) facing the head of said extractor body (2). The fume-extracting inlet is a focused fume-extracting area; the transparent glass cover extension rim prevents air, except for fumes, from entering the fume extractor, enhancing the extraction effect on the fumes. The variable-section passageway further enhances fume extraction efficiency.

Description

[0001] P5138PC00

[0002] FUME EXTRACTOR DESCRIPTION

[0003] TECHNICAL FIELD OF INVENTION

[0004] The present invention belongs to the technical field of welding apparatus, especially relating to a fume extractor for a welding torch.

[0005] BACKGROUND TECHNIQUE

[0006] The function of a fume extractor is to remove welding fumes at their source before they rise and disperse. Existing fume extractors typically employ either fume extraction at the source or circumferential fume extraction methods, resulting in a non-focused fume-extracting range and poor dust extraction efficiency. Additionally, when mounted on the welding torch nozzle, the fume extractor obstructs visibility of the weld bead during the welding process.

[0007] SUMMARY OF THE INVENTION

[0008] To address the aforementioned drawbacks, the present invention discloses a fume extractor that sequentially comprises a connecting part, a fume extractor body, a fume extractor sloped surface, and a high-temperature-resistant transparent glass cover. Mounted at the front end of the torch body, the novel fume extractor body and high-temperature-resistant transparent glass cover are installed above the fume-extracting hole and integrated with high-temperature-resistant adhesive, forming a fume-extracting inlet with a focused fume-extracting area. The transparent glass cover extension rim prevents air, except for fumes, from entering the fume extractor, enhancing the extraction effect on the fumes. The variable-section passageway further enhances fume extraction efficiency.

[0009] The technical solution of the present invention is: a fume extractor comprising a fume extractor body with a tubular structure;

[0010] the rear end of said fume extractor configured with a connecting part capable of detachably fixing to a curved tube;

[0011] a fume-extracting hole formed on the circumferential surface of said fume extractor body, with a high-temperature-resistant transparent glass cover configured above;

[0012] said high-temperature-resistant transparent glass cover comprising a top inclined glass plate and left and right side glass plates; the bottom surface of said high-temperature-resistant transparent glass cover, formed iP5138PC00

[0013] from said top inclined glass plate and left and right side glass plates, fixed to said fume extractor body at the periphery of said fume-extracting hole by high-temperature-resistant adhesive, with the opening of said high-temperature-resistant transparent glass cover facing the head of said extractor body. The high-temperature-resistant transparent glass cover and the fume-extracting hole form a fume-extracting inlet with a focused fume-extracting area. The novel fume extractor body and the high-temperature-resistant transparent glass cover form a variable-section fume-extracting passageway, with the largest opening at the front end and a progressively reduced cross-section toward the middle. The large front opening facilitates suction coverage over a wider area of fumes, while the reduced middle cross-section increases negative pressure within the passageway, enhancing fume extraction efficiency.

[0014] Further, a transparent glass cover extension rim protrudes from the front end of said inclined glass plate. The transparent glass cover extension rim prevents air, except for fumes, from entering the fume extractor, further enhancing the extraction effect on the fumes.

[0015] Further, said connecting part comprises an elastic retaining ring and elastic claws connected to the circumference at the rear end of said retaining ring. The connecting part is elastically mounted on the curved tube through the combined action of the claws and elastic retaining ring, facilitating quick installation and removal of the fume extractor. Depending on the usage scenario, the elastic connection allows the fumeextracting inlet to be adjusted in both axial and circumferential directions, enabling it to be positioned at the fume source and thereby enhancing fume extraction efficiency.

[0016] Further, the head of said fume extractor body is configured with a radially shrunk fume extractor sloped surface. Said fume extractor sloped surface is a large inclined plane, ensuring that fumes are unobstructedly drawn into the fume-extracting inlet, thereby reducing fume dispersion.

[0017] Further, the inclination angle of the inclined glass plate ranges from 5° to 60°.

[0018] Further, the outer diameter of said fume extractor body ranges from 20 to 50 mm.

[0019] Further, the material for said fume extractor body is preferably aluminum. Secondary options include but are not limited to copper, steel, ceramic, and glass.

[0020] Further, the width of said high-temperature-resistant transparent glass cover ranges from 10 to 50 mm. Further, the material for said high-temperature-resistant transparent glass cover is preferably glass. Secondary options include but are not limited to copper, steel, ceramic, and aluminum.

[0021] The beneficial effects of the present invention are as follows: the novel fume extractor body and high-P5138PC00

[0022] temperature-resistant transparent glass cover are installed above the fume-extracting hole and integrated with high-temperature-resistant adhesive. The high-temperature-resistant transparent glass cover and the fumeextracting hole form a fume-extracting inlet with a focused fume-extracting area; the transparent glass cover extension rim prevents air, except for fumes, from entering the fume extractor, further enhancing the extraction effect on the fumes.

[0023] The novel fume extractor body and the high-temperature-resistant transparent glass cover form a variablesection fume-extracting passageway, with the largest opening at the front end and a progressively reduced cross-section toward the middle. The large front opening facilitates suction coverage over a wider area of fumes, while the reduced middle cross-section increases negative pressure within the passageway, enhancing fume extraction efficiency.

[0024] The high-temperature-resistant transparent glass cover employs transparent high-temperature-resistant material to reduce obstruction and facilitate operation and observation during the welding process.

[0025] The fume extractor sloped surface is a large inclined plane, reducing obstruction to the fume-extracting inlet and ensuring that fumes are unobstructedly drawn into the fume-extracting inlet, thereby enhancing fume extraction efficiency.

[0026] BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a schematic illustration of the structure of the novel fume extractor according to the present invention;

[0027] FIG. 2 is a front view of the novel fume extractor according to the present invention;

[0028] FIG. 3 is a sectional view of the novel fume extractor according to the present invention;

[0029] FIG. 4 is an illustration of the fume-extracting passageway of the novel fume extractor according to the present invention;

[0030] FIG. 5 is a schematic illustration of the novel fume extractor mounted on the torch body;

[0031] FIG. 6 is a schematic illustration of the novel fume extractor positioned at different distances and circumferential directions relative to the nozzle end face;

[0032] FIG. 7 is a schematic illustration of the key dimensions of the novel fume extractor;

[0033] FIG. 8 is a cross-sectional view along line A-A in FIG. 7.

[0034] Reference numerals in the figures are as follows: 1. connecting part, 11. elastic retaining ring, 12. elastic claws, 2. fume extractor body, 21. fume-extracting hole, 3. fume extractor sloped surface, 4. high-temperature-P5138PC00

[0035] resistant transparent glass cover, 41. transparent glass cover extension rim; 5. high-temperature-resistant adhesive, 6. curved tube, 7. nozzle;

[0036] B. a workpiece, C. welding fumes, D. fume passageway;

[0037] a. the width of the high-temperature-resistant transparent glass cover, b. the angle of the inclined glass plate, d. the outer diameter of the fume extractor body.

[0038] DETAILED DESCRIPTION OF EMBODIMENT

[0039] The following description will clearly and completely explain the technical solutions of the embodiment of the present invention with reference to the accompanying drawings, and it is obvious that the described embodiment is just one of several, but not all, embodiments of the present invention. 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.

[0040] It should be noted that directional terms such as “left”, “right”, “up”, “down”, “front”, and “rear” in the embodiment of the present invention are merely relative concepts or references to the normal usage of the product, i.e., the direction of travel of the product, and should not be construed as limiting the scope of the invention.

[0041] Finally, it should be noted that when a component is referred to as being “positioned on” or “configured with” another component, it can be positioned directly on the other component, or intervening components may also be present.

[0042] As shown in FIG. 1 to 7, a fume extractor, mounted at the end of the torch body, sequentially comprises a connecting part 1, a fume extractor body 2, a fume extractor sloped surface 3, and a high-temperature-resistant transparent glass cover 4. The connecting part 1 is mounted on the curved tube 6 through an elastic connection. The fume extractor body 2 comprises a fume-extracting hole 21 on the circumference, with a high-temperature-resistant transparent glass cover 4 installed above and integrated with the fume extractor body using high-temperature-resistant adhesive 5. Particularly, said high-temperature-resistant transparent glass cover 4 comprises a top inclined glass plate and left and right side glass plates; the bottom surface of the high-temperature-resistant transparent glass cover 4, formed from said top inclined glass plate and left and right side glass plates, is fixed to said fume extractor body 2 at the periphery of said fume-extracting hole 21 by high-temperature-resistant adhesive 5, with the opening of said high-temperature-resistant transparent glass cover 4 facing the head of said extractor body 2. The high-temperature-resistant transparent glass cover 4 andP5138PC00

[0043] the fume-extracting hole 12 form a fume-extracting inlet with a focused fume-extracting area, enhancing the fume extraction effect. The high-temperature-resistant transparent glass cover 4 employs transparent high-temperature-resistant material to reduce obstruction and facilitate operation and observation during the welding process.

[0044] In the embodiment, the connecting part 11 of the novel fume extractor is mounted on the curved tube through the combined elastic connection of the claws 12 and elastic retaining ring 11, which facilitates quick installation and removal of the fume extractor.

[0045] Preferably, depending on the usage scenario, the elastic connection allows the fume-extracting inlet to be adjusted in both axial and circumferential directions, enabling it to be positioned at the fume source and thereby enhancing fume extraction efficiency.

[0046] In the embodiment, the novel fume extractor body 2 and high-temperature-resistant transparent glass cover 4 are installed above the fume-extracting hole 12 and integrated with the fume extractor body using high-temperature-resistant adhesive 5. The high-temperature-resistant transparent glass cover 4 and the fumeextracting hole 12 form a fume-extracting inlet with a focused fume-extracting area; the transparent glass cover extension rim 41 prevents air, except for fumes, from entering the fume extractor, further enhancing the extraction effect on the fumes.

[0047] Further, the novel fume extractor body and the high-temperature-resistant transparent glass cover form a variable-section fume-extracting passageway, with the largest opening at the front end and a progressively reduced cross-section toward the middle. The large front opening facilitates suction coverage over a wider area of fumes, while the reduced middle cross-section increases negative pressure within the passageway, enhancing fume extraction efficiency.

[0048] Preferably, the high-temperature-resistant transparent glass cover 4 employs transparent high-temperature-resistant material to reduce obstruction and facilitate operation and observation during the welding process.

[0049] In the embodiment, the fume extractor sloped surface 3 is a large, inclined plane, reducing obstruction to the fume-extracting inlet and ensuring that fumes are unobstructedly drawn into the fume-extracting inlet, thereby enhancing fume extraction efficiency.

[0050] In the embodiment, the outer diameter of the fume extractor body ranges from 20 to 50 mm. The material for the fume extractor body is preferably aluminum, with secondary options including but not limited to copper,P5138PC00

[0051] steel, ceramic, and glass. The width of the high-temperature-resistant transparent glass cover ranges from 10 to 50 mm. The material for the high-temperature-resistant transparent glass cover is preferably glass, with secondary options including but not limited to copper, steel, ceramic, and aluminum. The angle of the inclined glass plate ranges from 5° to 60°.

[0052] The above description constitutes only a preferred embodiment of the present invention. It should be noted that for those skilled in the art, various modifications and improvements may be made within the principles of the present invention. Such modifications and improvements should also be included in the scope of the present invention.

Claims

P5138PC00CLAIMS1. A fume extractor comprising: a fume extractor body (2) with a tubular structure;the rear end of said fume extractor body (2) being configured with a connecting part (1) capable of detachably fixing to a curved tube (6);a fume-extracting hole (21) being formed on the circumferential surface of said fume extractor body (2), with a high-temperature-resistant transparent glass cover (4) configured above;said high-temperature-resistant transparent glass cover (4) comprising a top inclined glass plate and left and right side glass plates; the bottom surface of said high-temperature-resistant transparent glass cover (4), formed from said top inclined glass plate and left and right side glass plates, being fixed to said fume extractor body (2) at the periphery of said fume-extracting hole (21) by high-temperature-resistant adhesive (5), with the opening of said high-temperature-resistant transparent glass cover (4) facing the head of said extractor body (2).

2. The fume extractor of claim 1, wherein a transparent glass cover extension rim (41) protrudes from the front end of said inclined glass plate.

3. The fume extractor of claim 1, wherein said connecting part (1) comprises an elastic retaining ring (11) and elastic claws (12) connected to the circumference at the rear end of said elastic retaining ring (11).

4. The fume extractor of claim 1 , wherein the head of said fume extractor body (2) is configured with a radially shrunk fume extractor sloped surface (3).

5. The fume extractor of claim 1, wherein the inclination angle of said inclined glass plate ranges from 5° to 60°.

6. The fume extractor of claim 1 , wherein the outer diameter of said fume extractor body (2) ranges from 20 to 50 mm.

7. The fume extractor of claim 1, wherein the material of said fume extractor body (2) is aluminum.

8. The fume extractor of claim 1, wherein the width of said high-temperature-resistant transparent glass cover (4) ranges from 10 to 50 mm.

9. The fume extractor of claim 1 , wherein the material of said high-temperature-resistant transparent glass cover (4) is glass.

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