A welding air filter device

Abstract

The utility model discloses a kind of welding air filtering devices, including upper cover, the upper cover is provided with article platform;Base, with the detachable connection of the upper cover;The base is provided with air inlet and air outlet;The channel formed by the base with the upper cover is provided with filter assembly, the air inlet side of the filter assembly is to the air inlet, the air outlet side of the filter assembly is to the air outlet.Due to the detachable mode connection of the upper cover and the base of the utility model, operator only needs to take off the upper cover together with the article placed on article platform from base, can replace filter, improve operation convenience, also provide greater operating space for operator to replace filter.In addition, article platform can place welding tool or other articles, improve the space utilization of upper cover.

Description

Technical Field

[0001] This disclosure relates to the field of air filtration technology, and more specifically to a welded air filtration device. Background Technology

[0002] Welding tools are widely used in electronics manufacturing, repair, and other processes and industries involving metal processing. During welding operations, the tool tip reaches a sufficiently high temperature due to the action of a heater to melt the solder, generating a large amount of harmful fumes and gases. If these pollutants are not effectively filtered, long-term inhalation will seriously harm human respiratory health.

[0003] Patent publication number WO2025090982A1 discloses a slow-opening cover structure for an air filtration device for welding tools. This air filtration device mainly consists of a cover, a base, an air inlet, an air outlet, a filter, a fan, and a hinge assembly connecting the cover and the base. Through the hinge assembly, the cover can rotate between an open position and a closed position: in the open position, the cover can be opened to expose and replace the internal filter; in the closed position, the cover and the base together form a closed space to accommodate the filter. Furthermore, a heat-resistant pad is provided on the upper surface of the cover, providing operators with a dedicated area for placing high-temperature welding tools during welding, preventing heat damage to the workbench.

[0004] However, the hinge assembly in the aforementioned patent can only rotate the cover between the open and closed positions, and the cover cannot be completely separated from the base. When replacing the filter, if a high-temperature welding tool is placed on the upper surface of the cover, the welding tool on the cover must be removed before the cover can be opened for operation. This extra step increases the operational burden during welding operations and brings inconvenience to operators when replacing the filter. Utility Model Content

[0005] To address the technical problems existing in the prior art, this application provides a welding air filtration device. When replacing the filter, there is no need to remove the items on the top cover; the filter can be replaced simply by removing the top cover.

[0006] The technical solution adopted in this application to solve the above-mentioned technical problem is a welding air filtration device, comprising: The upper cover is provided with a storage platform; The base is detachably connected to the top cover; the base is provided with an air inlet and an air outlet; a filter assembly is provided in the channel formed by the base and the top cover, with the air inlet side of the filter assembly facing the air inlet and the air outlet side of the filter assembly facing the air outlet.

[0007] Furthermore, the storage platform is provided with a tabletop, which is parallel to the bottom of the upper cover.

[0008] Furthermore, a mat is provided above the tabletop or the surface of the tabletop is provided with an anti-slip structure.

[0009] In some embodiments, the detachable connection is one or more combinations of plug-in, snap-in, and connection via magnetic components.

[0010] Furthermore, the detachable connection is a combination of plug-in and magnetic connection; the base includes a first housing and a second housing, one end of the top cover is plugged into the first housing, and the other end of the top cover is connected to the second housing via a magnetic component.

[0011] Furthermore, the base is provided with a recessed portion, and the air inlet is disposed in the recessed portion.

[0012] Furthermore, the base is provided with a control panel, which is located above the recessed portion.

[0013] Furthermore, the base is provided with a lighting lamp, which is located on the inner wall of the recess.

[0014] Furthermore, the filtration assembly includes a filter and a fan; the fan is provided with an air inlet and an air outlet, and the filter is disposed between the air inlet and the air outlet; the filter is provided with a three-layer filtration structure.

[0015] Furthermore, the area of ​​the air outlet is smaller than the area of ​​the air outlet, and a guide plate is provided between the air outlet and the air outlet.

[0016] Compared to existing technologies, the welding air filter device of this application features a detachable connection between the top cover and the base. When replacing the filter, the operator only needs to remove the top cover, allowing them to move the filter along with any items placed on the work surface to another area without first clearing the work surface and then opening the top cover for replacement. This completely eliminates the dangerous and cumbersome extra step of moving high-temperature tools, greatly improving operational convenience and safety. Removing the top cover from the base also provides the operator with more operating space for filter replacement. Furthermore, the storage platform can hold welding tools and other items, increasing the space utilization of the top cover. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the structure of a welding air filtration device disclosed herein, with the upper cover and base completely separated. Figure 2 This is a schematic diagram of the welding air filtration device disclosed in this invention from another direction when the upper cover and the base are completely separated. Figure 3 This is a schematic diagram of the structure of a welding air filtration device disclosed herein, with the upper cover and base in a closed state; Figure 4 This is a schematic diagram of the welding air filtration device disclosed in this disclosure in another direction when the upper cover and base are closed. Figure 5 This is a schematic diagram of the structure of the cover of this disclosure; Figure 6 This is a cross-sectional view of a welding air filtration device disclosed herein; Figure 7 This is a schematic diagram of the structure of the wind turbine disclosed in this publication.

[0018] In the diagram: 1. Top cover; 11. Storage platform; 12. Tabletop; 13. Bottom; 14. Mat; 15. Connector; 16. Magnet; 2. Base; 21. Air inlet; 22. Air outlet; 23. First housing; 231. Connector slot; 232. Recess; 24. Second housing; 241. Ferromagnetic material; 25. Guide plate; 26. Control panel; 27. Lighting; 3. Filter assembly; 31. Filter; 32. Fan; 321. Air inlet; 322. Air outlet; 33. Baffle. Detailed Implementation

[0019] To enable those skilled in the art to better understand the technical solutions of this disclosure, the following detailed, clear, and complete description of this disclosure is provided in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of this disclosure and are not intended to limit it.

[0020] Those skilled in the art should understand that in the disclosure of this utility model, the terms "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, the above terms should not be construed as a limitation of this utility model.

[0021] This application provides a welding air filtration device, comprising: an upper cover 1, on which a platform 11 is provided; a base 2 detachably connected to the upper cover 1; the base 2 having an air inlet 21 and an air outlet 22; and a filter assembly 3 disposed in an L-shaped channel formed by the base 2 and the upper cover 1, wherein the air inlet of the filter assembly 3 is connected to the air inlet 21, and the air outlet of the filter assembly 3 is connected to the air outlet 22. Airflow enters the channel from the air inlet 21, is filtered by the filter assembly 3, and then exits from the air outlet 22, completing the filtration process. The upper cover 1 and the base 2 are connected by a snap fastener, allowing the operator to remove the upper cover 1 along with the high-temperature welding tools placed on the platform 11 as a whole from the base 2 by hand when changing the filter 31, without needing to empty the platform 11. This completely avoids the dangerous and cumbersome extra step of moving the high-temperature tools, greatly improving operational convenience and safety. Furthermore, in the prior art, a hinge is used to connect the top cover 1 to the base 2. After long-term use, the hinge may wear out and loosen. This application eliminates the hinge structure, thus eliminating a potential point of failure and improving the overall reliability and service life of the product.

[0022] like Figure 1 and Figure 3 As shown, in one embodiment of this disclosure, the upper cover 1 is recessed to form a storage platform 11, and one side of the recess is open. The storage platform 11 is surrounded by walls with gradually decreasing heights. A protrusion (or recess) is provided below the opening to facilitate the operator applying upward force to pry up the upper cover 1. At this time, welding tools on the storage platform 11 will not slip off the periphery of the storage platform 11 or from the opening. The storage platform 11 is provided with a tabletop 12 for placing welding tools or other items, improving the space utilization of the upper cover. The tabletop 12 is parallel to the bottom 13 of the upper cover 1. When the upper cover 1 is removed and placed in another area, welding tools or other items can also be placed stably on the tabletop 12 and will not slip off from the opening of the storage platform 11.

[0023] like Figure 1 and Figure 3 As shown, a mat 14 is provided above the work surface 12. When high-temperature welding tools are placed on the work surface 12, the mat 14 can be used for heat insulation to prevent the work surface 12 from overheating and being damaged. The mat 14 can also be used to block welding materials, so that when the operator performs welding operations on the mat 14, the welding materials will not directly contact the work surface 12, thus affecting the use of the work surface 12. In addition, when other slippery items are placed on the work surface 12, the mat 14 can also increase the friction between the contact surface and the items, so that the items will not easily slide on the work surface. In some embodiments, the surface of the work surface 12 can also be provided with an anti-slip structure, which in this embodiment is an anti-slip texture (not shown in the figure), or it can be a raised dot structure to increase the friction between the items and the work surface.

[0024] In some embodiments, the base 2 is inserted into the top cover 1, with the base 2 having an insertion slot 231 and the top cover 1 having an insertion member 15. The base 2 and top cover 1 can also be snapped together, with the base 2 having a snap-fit ​​slot and the top cover 1 having a snap-fit ​​member. However, long-term use of these insertion and snap-fit ​​connections may reduce the stability of the connection between the top cover 1 and the base 2. The base 2 and top cover 1 can also be connected via magnetic components, with the top cover 1 having a magnet 16 and the base 2 having a corresponding magnetic component or ferromagnetic body 241. However, this magnetic connection may make it difficult for the top cover 1 and base 2 to quickly and accurately align when closed, thus affecting the tight connection between the top cover 1 and the base 2.

[0025] like Figures 1 to 4 As shown, in a preferred embodiment, the connection between the base 2 and the top cover 1 is a combination of plug-in and magnetic component connection. The base 2 includes a first housing 23 and a second housing 24, with the first housing 23 located at the end of the second housing 24. One end of the top cover 1 is plugged into the first housing 23, and the other end of the top cover 1 is connected to the second housing 24 via a magnetic component. Specifically, one end of the top cover 1 is provided with a plug-in member 15, and the corresponding position of the first housing 23 is provided with a plug-in groove 231; the other end of the top cover 1 is provided with a magnet 16, and the corresponding position of the second housing 24 is provided with a magnetic component or ferromagnetic material 241 that attracts the magnet 16. Generally, the second housing 24 is provided with a ferromagnetic material 241 (such as an iron sheet or nickel-iron alloy) to prevent the connection part of the second housing 24 from attracting surrounding metal debris due to magnetism, thereby affecting the tight connection between the top cover 1 and the base 2.

[0026] When replacing the filter 31, first apply upward force to the end of the upper cover 1 where the magnet 16 is located, and slightly pry up the upper cover 1 to separate the magnet 16 of the upper cover 1 from the ferromagnetic body 241 of the second housing 24; then, disengage the connector 15 of the upper cover 1 from the connector slot 231 of the first housing 23, thereby pulling out the upper cover 1 and replacing the exposed filter 31. After the replacement is completed, first insert the connector 15 of the upper cover 1 into the connector slot 231 of the first housing 23, and then release the upper cover 1. The ferromagnetic body 241 of the second housing 24 will automatically align with the magnet 16 of the upper cover 1 by attraction, so that the upper cover 1 and the base 2 are tightly connected, and the filter 31 is sealed in the L-shaped channel formed by the upper cover 1 and the base 2. The combination of plug-in and magnetic component connection not only allows the top cover 1 and base 2 to be completely separated, but also allows the top cover 1 and base 2 to be precisely aligned when closed, enhancing the stability of the connection between the two, reducing the difficulty of operation, and enabling operators to easily remove the top cover 1 to replace the filter 31.

[0027] like Figure 1 and Figure 2As shown, the first shell 23 of the base 2 has a recess 232, an air inlet 21 is located in the recess 232, and an air outlet 22 is located in the second shell 24. Specifically, the recess 232 has a figure-eight shape, with the air inlet 21 located at the small end of the recess 232. Airflow is introduced from the large end and then enters the air inlet. The figure-eight-shaped recess 232 acts as a guide, allowing the airflow to smoothly converge into the main flow along the wall and finally be guided into the air inlet 21, thus effectively avoiding vortices generated at the inlet due to right angles or sudden changes in cross-section.

[0028] like Figure 2 and Figure 4 As shown, in one embodiment of this disclosure, a control panel 26 is provided above the base 2. The control panel 26 is located above the recess 232, allowing operators to easily manipulate the buttons on the control panel 26. The control panel 26 can control the wind speed of the fan 32, thereby changing the air filtration speed, and can also display the filter cartridge usage time of the filter 31, allowing for timely replacement when the filter cartridge of the filter 31 is nearly depleted.

[0029] like Figure 2 and Figure 4 As shown, in one embodiment of this disclosure, the base 2 is provided with a lighting lamp 27, which is located on the inner wall of the recess 232. During welding operations, if the lighting in the work area is insufficient, the operator can turn on the lighting lamp 27 via the control panel 26. The LED beads of the lighting lamp 27 are angled, which can effectively improve the lighting brightness of the work area. Alternatively, the lighting lamp 27 can also be located at the edge of the recess 232, which is closer to the welding worktable. When soot accumulates on the inner side of the recess 232, the light at the edge is less likely to be blocked by soot, thus providing a better lighting effect.

[0030] like Figure 6 and Figure 7As shown, the filter assembly 3 includes a filter 31 (such as a welding fume purifier) ​​and a fan 32. The fan 32 has an air inlet 321 and an air outlet 322, and the filter 31 is located between the air inlet 321 and the air inlet 21. The filter 31 has a three-layer filtration structure. Specifically, the three-layer filtration structure consists of a primary filtration structure, a secondary filtration structure, and a tertiary filtration structure arranged from top to bottom. The primary filtration structure is a pre-filter used to filter larger particulate pollutants, such as dust and lint, and its filter element includes, but is not limited to, filter cotton and wound filter elements. The secondary filtration structure is a high-efficiency filter used to filter fine particulate matter, such as PM2.5, and its filter element includes, but is not limited to, glass fiber filter paper and high-efficiency electrostatic electret materials. The tertiary filtration structure is an activated carbon filter used to adsorb gaseous pollutants and odors, and its filter element includes, but is not limited to, granular activated carbon and activated carbon powder. A baffle 33 is provided between the filter 31 and the fan 32. The baffle 33 separates the L-shaped channel formed by the base 2 and the upper cover 1, forming an upper cavity above the baffle 33 and a lower cavity below the baffle 33. The filter 31 is located in the upper cavity, and the fan 32 is located in the lower cavity. The baffle 33 separates the fan 32 from the filter 31, effectively preventing dust pollution from contacting the fan 32 and extending the service life of the fan 32. A vent hole is provided in the middle of the baffle 33, through which the filtered airflow enters the fan 32. A raised structure is provided around the vent hole, which can lift the filter element of the filter 31 upwards, thereby reducing the effective negative pressure area that the filtered airflow needs to cover. When the fan 32 is running, this area will form a stronger negative pressure effect, allowing the airflow to flow more quickly and smoothly from the filter 31 to the fan 32, and thus allowing the airflow to smoothly enter the filter 31 from the air inlet 21, improving the filtration efficiency of the welding air filtration device.

[0031] like Figure 7 As shown, the cross-sectional area of ​​the air outlet 322 of the fan 32 is smaller than the effective cross-sectional area of ​​the air outlet 22. This prevents airflow from accumulating between the air outlet 322 and the air outlet 22 under static pressure, thus avoiding the formation of air pressure and ensuring smooth airflow from the fan 32. This improves the negative pressure stability of the fan 32, allowing airflow to be smoothly drawn in from the air inlet 21 and filtered by the filter 31. A guide plate 25 is provided between the air outlet 322 and the air outlet 22. The guide plate 25 not only guides the airflow but also effectively prevents the filtered airflow from returning to the L-shaped channel formed by the upper cover 1 and the base 2 before entering the air outlet 22, thereby enhancing the filtration effect of the welding air filtration device.

[0032] When the welding air filtration device is working, the airflow passes through the concave part 232 and is drawn into the L-shaped channel formed by the upper cover 1 and the base 2 through the air inlet 21. Then it enters the filter 31 for filtration. After filtration, it enters the fan 32 through the vent hole of the baffle 33, and then flows out from the air outlet 322 of the fan 32. It flows along the guide plate 25 to the air outlet 22 and is finally discharged from the air outlet 22, leaving the welding air filtration device and re-entering the external environment, thus completing the entire air filtration process.

[0033] The present application has been described in detail above. Specific examples have been used to illustrate the principles and implementation methods of the present application. The descriptions of the embodiments above are only for the purpose of helping to understand the present application and its core ideas. It should be noted that those skilled in the art can make several improvements and modifications to the present application without departing from the principles of the present application, and these improvements and modifications also fall within the protection scope of the claims of the present application.

Claims

1. A welding air filtration device, characterized in that, include: The upper cover (1) is provided with a storage platform (11); The base (2) is detachably connected to the top cover (1); the base (2) is provided with an air inlet (21) and an air outlet (22); a filter assembly (3) is provided in the channel formed by the base (2) and the top cover (1), with the air inlet side of the filter assembly (3) facing the air inlet (21) and the air outlet side of the filter assembly (3) facing the air outlet (22).

2. The welding air filtration device according to claim 1, characterized in that, The storage platform (11) is provided with a tabletop (12), which is parallel to the bottom (13) of the cover (1).

3. The welding air filtration device according to claim 2, characterized in that, A mat (14) is provided above the tabletop (12), or an anti-slip structure is provided on its surface.

4. The welding air filtering device according to claim 1, characterized in that, The detachable connection is one or more combinations of plug-in, snap-in, and connection via magnetic components.

5. The welding air filtering device according to claim 4, characterized in that, The detachable connection is a combination of plug-in and magnetic connection; the base (2) includes a first housing (23) and a second housing (24), one end of the top cover (1) is plugged into the first housing (23), and the other end of the top cover (1) is connected to the second housing (24) via a magnetic component.

6. The welding air filtering device according to claim 1, characterized in that, The base (2) is provided with a recess (232), and the air inlet (21) is provided in the recess (232).

7. The welding air filtering device according to claim 6, characterized in that, The base (2) is provided with a control panel (26), which is located above the recess (232).

8. The welding air filtering device according to claim 6, characterized in that, The base (2) is provided with a lighting lamp (27), which is located on the inner wall of the recess (232).

9. The welding air filtering device according to claim 1, characterized in that, The filter assembly (3) includes a filter (31) and a fan (32); the fan (32) is provided with an air inlet (321) and an air outlet (322), and the filter is located between the air inlet (321) and the air inlet (21); the filter (31) is provided with a three-layer filter structure.

10. The welding air filtering device according to claim 9, characterized in that, The area of ​​the air outlet (322) is smaller than the area of ​​the air outlet (22), and a guide plate (25) is provided between the air outlet (322) and the air outlet (22).

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