A welding processing protection mechanism

By designing smoke extraction components and insert cover components for the protective mechanism, the problems of spark splashing and fume emission during welding were solved, achieving efficient filtration of fine particulate matter and harmful gases, thus improving worker health and the quality of the working environment.

CN224424649UActive Publication Date: 2026-06-30CHANGCHUN HUAZHUN PRECISION MASCH CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
CHANGCHUN HUAZHUN PRECISION MASCH CO LTD
Filing Date
2025-06-19
Publication Date
2026-06-30

AI Technical Summary

Technical Problem

During welding, sparks can easily fly onto workers, and fine particles and harmful gases in the fumes are directly released into the air, making it difficult to protect workers' health and resulting in a poor working environment.

Method used

A welding protection mechanism was designed, comprising a base, a protective box, a fume extraction component, and a plate cover assembly. The fume extraction component filters smoke and dust through a suction fan and a filter drawer, the plate cover assembly prevents sparks from flying, and HEPA and activated carbon filters are used to filter fine particulate matter and harmful gases.

Benefits of technology

It effectively prevents the emission of fine particulate matter and harmful gases from welding fumes into the air, protecting workers' health and improving the quality of the working environment.

✦ Generated by Eureka AI based on patent content.

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Abstract

This utility model provides a welding protection mechanism, belonging to the field of welding technology. It includes a base, a protective box on top of the base, a sliding cover assembly at the opening of the protective box, and a fumigation assembly on the protective box. The fumigation assembly includes a collection box, inside which two filter drawers, one from top to bottom, slide. A dust extraction hood connected to the top of the collection box is located on the inner wall of the first protective box. This utility model, through the sliding cover assembly, covers the opening of the protective box, preventing sparks from flying onto workers during welding. Through the fumigation assembly, when the suction fan is activated, the welding fumes are drawn into the collection box. A HEPA filter combined with an activated carbon filter efficiently filters the fumes and fine particulate matter generated during welding, effectively preventing the emission of fine particulate matter or harmful gases from the welding fumes into the air, thus protecting worker health and improving the quality of the working environment.
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Description

Technical Field

[0001] This utility model provides a welding processing protection mechanism, belonging to the field of welding processing technology. Background Technology

[0002] When welding with a handheld welding torch, the torch produces a dazzling light, and a large amount of sparks and fumes are generated during the welding process. Therefore, workers need special protective equipment to protect themselves during welding to avoid eye burns and skin burns from flying sparks.

[0003] Existing protective devices are generally handheld face shields or dark-colored head-mounted protective goggles, which can basically meet normal usage needs. However, welding processes inevitably generate fumes and sparks, which can easily cause sparks to fly onto workers. Furthermore, the fine particles or harmful gases in the fumes are directly released into the air and are often inhaled by workers. This not only makes it difficult to protect workers' health but also results in a relatively poor working environment that needs improvement. Therefore, this utility model provides a welding processing protective mechanism. Utility Model Content

[0004] The technical problem solved by this utility model is that sparks can easily fly onto workers, and the tiny particles and harmful gases in the smoke and dust are often inhaled by workers when they are directly emitted into the air, making it difficult to protect workers' health and requiring improvement in the quality of the working environment.

[0005] To solve the technical problem, the technical solution provided by this utility model is as follows: a welding processing protection mechanism, including a base, a protective box on the top of the base, a sliding plate cover assembly inserted into the opening of the protective box, a fumigation assembly for welding smoke on the protective box, the fumigation assembly including a collection box, a filter drawer one and a filter drawer two slidably inserted from top to bottom in the collection box, a dust suction hood connected to the top of the collection box on the inner side wall of the protective box one; the sliding plate cover assembly includes a plate body, a dark protective lens is provided at the central axis of the side wall of the plate body, and hand holes are symmetrically opened on both sides of the side wall of the plate body, which are placed on both sides of the dark protective lens.

[0006] Furthermore, a welding gun wire through hole is provided on one side of the bottom of the plate, and an opening for fixing and installing a dark protective lens is provided on the plate. A horizontal plate is provided on the top of the plate and placed on the top of the protective box, and a handle is provided at the center of the top of the horizontal plate.

[0007] Furthermore, the plate body has two opposite side walls with limiting rails, the top of the protective box has an insertion port that passes through the plate body and the limiting rails, and the two opposite inner side walls of the protective box have symmetrical limiting grooves that communicate with the insertion port and match the limiting rails.

[0008] Furthermore, the smoking assembly also includes a suction fan fixedly installed at the bottom of the collection box. The collection box is fixedly installed on an outer side wall of the protective box. A suction pipe is provided between the top of the collection box and the dust hood. An exhaust pipe is provided at the lower part of one side wall of the collection box, which is connected to the air outlet of the suction fan.

[0009] Furthermore, both filter drawer one and filter drawer two include filter boxes. The bottom of the filter box has an installation opening. The two side walls of the filter box are symmetrically provided with slide rails that match the inner side wall of the collection box. The outer side wall of filter box one is provided with a baffle placed outside the collection box. The outer side wall of baffle one is provided with a handle.

[0010] Furthermore, a HEPA filter is provided between the inner walls of the mounting opening on filter drawer one, and an activated carbon filter is provided between the inner walls of the mounting opening on filter drawer two.

[0011] The beneficial effects of this utility model are:

[0012] The protective cover assembly, which covers the opening of the protective box, prevents sparks from flying onto workers during welding. The fume extraction assembly, when activated, draws the welding fumes into the collection box. The HEPA filter, combined with the activated carbon filter, efficiently filters the fumes and fine particles generated during welding, effectively preventing the release of fine particles or harmful gases from the welding fumes into the air, thus protecting workers' health and improving the quality of the working environment. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the structure of a welding processing protection mechanism according to the present invention. Figure 1 .

[0014] Figure 2 This is a schematic diagram of the structure of a welding processing protection mechanism according to the present invention. Figure 2 .

[0015] Figure 3 This is a schematic diagram of the structure of a welding processing protection mechanism according to the present invention. Figure 3 .

[0016] Figure 4 This is a schematic diagram of the filter drawer of a welding processing protection mechanism according to this utility model.

[0017] Figure 5 This is a partial plan view of the smoking component of a welding processing protection mechanism according to the present invention.

[0018] 1. Base; 2. Protective box; 3. Insert plate cover assembly; 4. Collection box; 5. Filter drawer one; 6. Filter drawer two; 7. Dust hood; 8. Panel; 9. Dark protective lens; 10. Hand hole; 11. Horizontal plate; 12. Handle; 13. Limiting rail; 14. Insert; 15. Limiting groove; 16. Suction fan; 17. Suction pipe; 18. Exhaust pipe; 19. Filter box; 20. Slide rail; 21. Baffle; 22. HEPA filter; 23. Activated carbon filter; 24. Smoke extraction assembly; 25. Welding torch wire hole. Detailed Implementation

[0019] The directional terms such as up, down, left, right, front, back, front, back, top, and bottom mentioned or possibly mentioned in this specification are defined relative to their structure and are relative concepts. Therefore, they may vary depending on their location and usage; thus, these or other directional terms should not be interpreted as restrictive terms.

[0020] The singular forms “a,” “the,” and “the” used in this specification are intended to include the plural forms unless the context clearly indicates otherwise. It should also be understood that the term “and / or” as used herein refers to and includes one or more of the associated listed items, any or all possible combinations thereof.

[0021] To make the technical problems to be solved, the technical solutions, and the beneficial effects of this application clearer, the following detailed description is provided in conjunction with the accompanying drawings and embodiments. It should be understood that the embodiments described herein are merely illustrative and not intended to limit the scope of this application.

[0022] According to the appendix Figure 1 , 2As shown in Figure 5: This utility model provides a welding processing protective mechanism, including a base 1, a protective box 2 on the top of the base 1, and a fumigation assembly 24 for welding fume extraction on the protective box 2. The fumigation assembly 24 includes a collection box 4, and filter drawers 5 and 6 are slidably inserted from top to bottom inside the collection box 4. A dust suction hood 7 connected to the top of the collection box 4 is provided on an inner side wall of the protective box 2. The fumigation assembly 24 also includes a suction fan 16 fixedly installed at the bottom of the collection box 4. The collection box 4 is fixedly installed on an outer side wall of the protective box 2, and a communication is provided between the top of the collection box 4 and the dust suction hood 7. The suction pipe 17 and the lower part of the side wall of the collection box 4 are provided with an exhaust pipe 18 connected to the air outlet of the suction fan 16. The exhaust pipe port is located on the outside of the collection box 4. Specifically, by starting the suction fan 16, the welding fumes are transported to the collection box 4 through the dust hood 7 and the suction pipe 17. Then, they are filtered by the filter drawer 1 5 and the filter drawer 2 6 in sequence. The fumes are retained in the filter drawer 1 5 and the filter drawer 2 6, making it convenient to pull the filter drawer 1 5 and the filter drawer 2 6 out of the collection box 4 for cleaning. The air that has been filtered of fumes is sucked away by the suction fan 16 and discharged into the external environment through the exhaust pipe 18.

[0023] As per the instruction manual Figure 4 , 5 As shown: Both filter drawer 1 (5) and filter drawer 2 (6) include filter boxes 19. The bottom of the filter box 19 has an installation port. The two side walls of the filter box 19 are symmetrically equipped with slide rails 20 that match the inner side walls of the collection box 4, serving to limit the movement of the filter box 19. One outer side wall of the filter box 19 has a baffle 21 placed outside the collection box 4, and a handle is provided on one outer side wall of the baffle 21. A HEPA filter 22 is installed between the inner side walls of the installation port on filter drawer 1 (5), and an activated carbon filter 23 is installed between the inner side walls of the installation port on filter drawer 2 (6). Specifically, the HEPA filter 22 first contacts the filtered dust. The HEPA filter can capture particles with a diameter of less than 0.3 micrometers, with a filtration efficiency of over 99.97%. Harmful gases such as ozone and nitrogen oxides are further adsorbed by the activated carbon filter 23, which is used in conjunction with the filter.

[0024] As per the instruction manual Figure 1 , 3As shown: A sliding cover assembly 3 is inserted into the opening of the protective box 2. The cover assembly 3 includes a plate body 8. A dark protective lens 9 is provided at the central axis of the side wall of the plate body 8. Hand holes 10 are symmetrically opened on both sides of the side wall of the plate body 8, which are placed on both sides of the dark protective lens 9. A through-hole for fixing and installing the dark protective lens 9 is opened on the plate body 8. A welding gun wire through-hole 25 is opened on one side of the bottom of the plate body 8 to avoid interference with the welding gun wire of the welding machine. A horizontal plate 11 is provided on the top of the protective box 2. The top of the horizontal plate 11 has a central hole. A handle 12 is provided at the center, and limiting rails 13 are provided on the two opposite side walls of the plate body 8. The top of the protective box 2 is provided with an insertion port 14 that passes through the plate body 8 and the limiting rail 13. The two opposite inner side walls of the protective box 2 are symmetrically provided with limiting grooves 15 that are connected to the insertion port 14 and matched with the limiting rails 13, which serve to limit the plate body 8. Specifically, the welding gun of the welding machine is placed into the protective box 2, and the welding gun wire passes through the welding gun wire through hole 25. The plate body 8 is inserted into the limiting groove 15 and is limited, thereby covering the opening of the protective box 2.

[0025] The principle of this utility model

[0026] When in use, place the material to be welded and the welding gun of the electric welding machine into the protective box 2, then hold the handle 12 and insert the plate body from top to bottom through the insertion port 14. The plate body 8 is inserted into the limiting groove 15 and is limited, thereby covering the opening of the protective box 2. The worker can insert his / her hands into the protective box 2 through the hand hole 10 to carry out welding work. The plate body 8 covering the opening of the protective box 2 can prevent the sparks from flying onto the worker during the welding work. The dark protective lens 9 can prevent the strong light generated during the welding work from hurting the worker's eyes.

[0027] The suction fan 16 is activated via the fume extraction assembly 24. The welding fumes are transported to the collection box 4 through the dust extraction hood 7 and suction pipe 17. The HEPA filter 22 first comes into contact with the filtered fumes, and then the activated carbon filter 23 further adsorbs the harmful gases generated during welding. This effectively filters the fumes and fine particles generated during welding, thereby preventing the fine particles or harmful gases in the welding fumes from being emitted into the air, so as to prevent them from being inhaled by workers, protect workers' health, and improve the quality of the working environment.

[0028] The present invention and its embodiments have been described above. This description is not restrictive, and the accompanying drawings are only one embodiment of the present invention; the actual structure is not limited thereto. In conclusion, if those skilled in the art are inspired by this description and design similar structures and embodiments without departing from the inventive spirit of the present invention, such designs should fall within the protection scope of the present invention.

Claims

1. A welding process protection mechanism comprising a base (1), characterised in that: The base (1) is provided with a protective box (2) on top. A plate cover assembly (3) is slidably inserted into the opening of the protective box (2). A fumigation assembly (24) for welding smoke is provided on the protective box (2). The fumigation assembly (24) includes a collection box (4). A filter drawer one (5) and a filter drawer two (6) are slidably inserted from top to bottom inside the collection box (4). A dust suction hood (7) connected to the top of the collection box (4) is provided on one inner side wall of the protective box (2). The plate cover assembly (3) includes a plate body (8). A dark protective lens (9) is provided at the central axis of the side wall of the plate body (8). Hand holes (10) are symmetrically opened on both sides of the side wall of the plate body (8) and placed on both sides of the dark protective lens (9).

2. The welding processing protection mechanism according to claim 1, characterized in that: The bottom side of the plate (8) has a welding gun wire through hole (25), and the plate (8) has an opening for fixing and installing a dark protective lens (9). The top of the plate (8) has a horizontal plate (11) placed on the top of the protective box (2), and a handle (12) is provided at the center of the top of the horizontal plate (11).

3. The welding processing protection mechanism according to claim 2, characterized in that: The plate (8) has two opposite side walls with limiting rails (13), and the top of the protective box (2) has an insertion port (14) that passes through the plate (8) and the limiting rails (13). The two opposite inner side walls of the protective box (2) are symmetrically provided with limiting grooves (15) that are connected to the insertion port (14) and matched with the limiting rails (13).

4. The welding processing protection mechanism according to claim 1, characterized in that: The smoking assembly (24) also includes a suction fan (16) fixedly installed at the bottom of the collection box (4). The collection box (4) is fixedly installed on an outer side wall of the protective box (2). A suction pipe (17) is provided between the top of the collection box (4) and the dust hood (7). An exhaust pipe (18) connected to the air outlet of the suction fan (16) is provided at the lower part of one side wall of the collection box (4).

5. The welding processing protection mechanism according to claim 1, characterized in that: Both filter drawer one (5) and filter drawer two (6) include filter boxes (19). The bottom of the filter box (19) is provided with an installation port. The two side walls of the filter box (19) are symmetrically provided with slide rails (20) that match the inner side wall of the collection box (4). One outer side wall of the filter box (19) is provided with a baffle (21) placed outside the collection box (4). The baffle (21) has a handle on one outer side wall.

6. The welding processing protection mechanism according to claim 5, characterized in that: A HEPA filter (22) is provided between the inner walls of the mounting opening on filter drawer one (5), and an activated carbon filter (23) is provided between the inner walls of the mounting opening on filter drawer two (6).