Smoke exhaust mechanism for wire soldering
By designing a four-filter plate structure and a rotating disc switching method, the problem of needing to stop the tin furnace exhaust system when replacing filter components is solved, achieving rapid replacement and reducing flue gas leakage, thus ensuring environmental safety and flue gas purification effect during the soldering process.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- KUNSHAN YULAIXIANG ELECTRONIC TECH CO LTD
- Filing Date
- 2025-06-06
- Publication Date
- 2026-05-15
AI Technical Summary
The existing tin furnace exhaust system requires the air pump to be stopped when replacing multi-stage filters, resulting in insufficient ease of use and making it impossible to replace the filters without shutting down the system.
A smoke extraction mechanism based on wire soldering was designed, employing a four-filter plate structure. Two filter plates are used for filtration, while the other two serve as backups. The filter plates can be quickly switched and replaced by rotating a disc. Combined with sealing gaskets and separators, smoke leakage is reduced. An exhaust fan is used to maintain a negative pressure state to prevent smoke leakage.
It enables rapid replacement of filter plates without shutting down the machine, reducing flue gas leakage, ensuring flue gas filtration effect, and maintaining a clean and safe working environment.
Smart Images

Figure CN224238456U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of tin furnace technology, specifically to a fume extraction mechanism for wire soldering. Background Technology
[0002] The solder pot heats the solder block to a molten state using heating elements, and the wire is inserted into the molten solder, which facilitates quick soldering of the wire.
[0003] Among the relevant technologies, a fume extraction device (publication number CN211162311U) applied to tin furnaces was found. The device starts an air pump and extracts the toxic gases and fumes generated during tinning into a fume collection box through an exhaust pipe. Multi-stage filters are used to filter and adsorb the toxic gases, preventing the exhaust gases from polluting the air and affecting people's health. This method is energy-saving and environmentally friendly.
[0004] However, the above solution utilizes installation components to facilitate the disassembly and replacement of multi-stage filters. When replacing multi-stage filters, the air pump must be stopped to perform the replacement; otherwise, serious leakage problems will occur. It is impossible to replace multi-stage filters without shutting down the system, resulting in insufficient convenience of use. Utility Model Content
[0005] The purpose of this invention is to provide a fume extraction mechanism for wire soldering to solve the problems mentioned in the background art.
[0006] To achieve the above objectives, this utility model provides the following technical solution: a smoke exhaust mechanism for wire soldering, comprising a collection bucket, a cover installed on the collection bucket, a disc inside the collection bucket, and two lifting openings on the surface of the cover;
[0007] The separator strips are provided in four places and connected to the edge of the disc. The separator strips are in contact with the collection bucket and the upper end of the separator strips is in contact with the cover. This can reduce the problem of flue gas leakage and provide a good sealing effect.
[0008] The filter plates are provided in four pieces, with the upper end of each filter plate in contact with a partition strip. The four filter plates are respectively installed between two partition strips.
[0009] The collection bucket is equipped with an air inlet pipe and an air outlet pipe on the left and right sides. Rotating the disc causes the separator to drive the filter plates to rotate. Two filter plates are aligned with the air inlet pipe and the air outlet pipe to achieve filtration, and the other two are aligned with the lifting port for replacement. Two of the four filter plates are in use and two are spares. The filter plates can be switched. The filter plates can be quickly replaced by pulling them out of the lifting port without delaying the use of the filter plates.
[0010] Furthermore, a rotating rod passing through the cover is connected to the center of the disc, and a handle is inserted into the upper end of the rotating rod. It is more convenient and less strenuous to control the rotation of the disc using the handle.
[0011] Furthermore, the surface of the separator is provided with a retaining strip, and the filter plate slides inside the retaining strip, ensuring stable installation and preventing jamming during disassembly. The surface of the filter plate is provided with a handle, making it easy to pull out the filter plate.
[0012] Furthermore, the air inlet pipe and the air outlet pipe are respectively connected to an exhaust fan and a fume hood. A workbench is provided below the fume hood, and a ventilation box is connected below the workbench. A fan is installed on the side of the ventilation box, and an air outlet is provided on the surface of the workbench. The air outlet blows air towards the fume hood, which can accurately deliver the smoke to the fume hood and prevent the smoke from escaping.
[0013] Compared with the prior art, the beneficial effects of this utility model are:
[0014] (1) Two of the four filter plates are in use and two are spares. When a filter plate needs to be replaced, turn the handle to control the two filter plates to be replaced to rotate so that they are aligned with the lifting port. At this time, the other two spare filter plates are aligned with the air inlet pipe and the air outlet pipe to continue filtering the flue gas. Use the handle to pull out the filter plate to be replaced and insert the new filter plate back. Replacing the filter plate will not affect the filtering of the flue gas and is more convenient to use.
[0015] (2) After the fan blows air into the ventilation box, the air flows upward from the air outlet on the surface of the workbench. The air carries the smoke upward to the smoke hood, effectively limiting the smoke from spreading everywhere, better capturing the smoke, and ensuring a cleaner working environment.
[0016] (3) The sealing gasket is in contact with the filter plate and the partition strip, which can reduce the leakage of flue gas. The exhaust fan makes the inside of the collection bucket negative pressure through the exhaust pipe, which can also effectively prevent the leakage of flue gas and avoid the leakage of flue gas from polluting the air. Attached Figure Description
[0017] Figure 1 This is a schematic diagram of the entire utility model;
[0018] Figure 2 This is a top view of the inside of the collection bucket of this utility model;
[0019] Figure 3 This is a cross-sectional view of the collection bucket of this utility model;
[0020] Figure 4 This is a schematic diagram showing the connection between the workbench and the air outlet of this utility model.
[0021] In the diagram: 1. Collection bucket; 2. Cover; 3. Lifting port; 4. Air inlet pipe; 5. Fume hood; 6. Ventilation box; 7. Workbench; 8. Fan; 9. Air outlet; 10. Exhaust fan; 11. Air outlet pipe; 12. Disc; 13. Divider strip; 14. Filter plate; 15. Handle; 16. Locking strip; 17. Rotating rod; 18. Handle; 19. Sealing gasket; 20. Screw hole plate; 21. Fixing plate. Detailed Implementation
[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0023] Example:
[0024] Please see Figure 1-4 This utility model provides a technical solution: a smoke exhaust mechanism for wire soldering, including a collection bucket 1, a cover 2 installed on the collection bucket 1, the collection bucket 1 having a screw hole plate 20, the cover 2 having a fixing piece 21, and bolts passing through the fixing piece 21 and screwing into the screw hole plate 20 to realize the connection between the cover 2 and the collection bucket 1.
[0025] The collection bucket 1 has a disc 12 inside, and the cover 2 has two lifting openings 3 on its surface. The size of the lifting openings 3 corresponds to the filter plate 14, ensuring that the filter plate 14 can be pulled out smoothly.
[0026] Four separator bars 13 are provided and connected to the edge of the disc 12. The separator bars 13 are in contact with the collection bucket 1 and the upper end of the separator bars 13 is in contact with the cover 2. This can reduce gaps and ensure that the flue gas is fully filtered, so that the gas discharged from the exhaust fan 10 is clean air.
[0027] The filter plate 14 consists of four plates, with the upper end of each plate in contact with the separator strip 13. The four plates are installed between two separator strips 13, and the two opposing plates filter the flue gas twice, resulting in good filtration. The filter plate 14 can be switched by rotating the disc 12 90 degrees. The filter plate 14 has a three-layer structure: an air filter, air filter cotton, and activated carbon honeycomb panel, surrounded by an outer frame. A handle 15 is recessed into the frame on the surface of the filter plate 14. The air filter is a HEPA high-efficiency filter, which allows air to pass through but prevents fine particles from passing through. It has antibacterial properties and is the most effective filtration medium for pollutants such as smoke, dust, and bacteria. The air filter cotton filters dust particles in the air, further enhancing the filtration effect and preventing the exhaust gas from polluting the air. The activated carbon honeycomb panel effectively reduces odors and pollutants, purifying and deodorizing the flue gas.
[0028] The collection bucket 1 is provided with an air inlet pipe 4 and an air outlet pipe 11 on the left and right sides. Rotating the disc 12 causes the separator 13 to drive the filter plate 14 to rotate. The two filter plates 14 are aligned with the air inlet pipe 4 and the air outlet pipe 11 to achieve filtration. The other two are aligned with the lifting port 3 to achieve replacement. The replacement operation only requires rotation and pulling, which is quick and convenient and does not delay the soldering of wires.
[0029] In this embodiment, as Figure 2 and Figure 3 As shown, a rotating rod 17 passing through the cover 2 is connected to the center of the disc 12. A handle 18 is inserted into the upper end of the rotating rod 17. The handle 18 can be used to rotate the rotating rod 17 quickly and effortlessly. The rotating rod 17 drives the disc 12 to rotate, thereby switching the filter plate 14.
[0030] In this embodiment, as Figure 2 As shown, the surface of the separator 13 is provided with a retaining strip 16, and the filter plate 14 is slidably connected inside the retaining strip 16. The retaining strip 16 positions the filter plate 14 to ensure that the filter plate 14 will not tilt and that there will be no jamming problem when pulling the filter plate 14. The filter plate 14 is easy to disassemble and assemble.
[0031] In this embodiment, as Figure 3 As shown, a sealing gasket 19 is connected to the lower surface of the cover 2. The separator strip 13, filter plate 14, and retaining strip 16 press against the sealing gasket 19 to reduce gaps and ensure that the fumes generated by soldering are filtered and discharged.
[0032] In this embodiment, as Figure 1As shown, the air inlet pipe 4 and the air outlet pipe 11 are respectively connected to the air extractor 10 and the smoke hood 5. The air extractor 10 makes the collection tank 1 under negative pressure, which can reduce the leakage of smoke inside the collection tank 1. The smoke hood 5 can better capture the smoke and prevent the smoke from spreading into the air.
[0033] In this embodiment, as Figure 1 and Figure 4 As shown, a workbench 7 is provided below the smoke hood 5, and a ventilation box 6 is connected to the workbench 7. A fan 8 is installed on the side of the ventilation box 6. An air outlet 9 is provided on the surface of the workbench 7. The air outlet 9 on the surface of the workbench 7, which is far from the center point, is inclined towards the center, which is conducive to the air sending the smoke into the smoke hood 5.
[0034] Specifically, during use, the exhaust fan 10 and the blower 8 are started, the tin furnace is placed on the workbench 7, and the tin block is heated by the tin furnace to melt it into liquid tin. During the process of melting tin and tinning wire, the flue gas is blown upward by the air outlet 9 on the workbench 7, actively sending the flue gas to the fume hood 5, which helps to limit the free dispersion of the flue gas. When the flue gas enters the collection bucket 1, it is filtered twice by the filter plate 14 to achieve the purification of the flue gas and ensure that the air discharged by the exhaust fan 10 is clean air.
[0035] When replacing filter plate 14, use handle 18 to rotate disc 12, separator 13, and filter plate 14 90 degrees. At this time, the two filter plates 14 in use will move to the unused position, that is, filter plate 14 will be aligned with the lifting port 3. The two spare filter plates 14 will be moved to the position aligned with the air inlet pipe 4 and the air outlet pipe 11 to continue filtering the flue gas. Use the handle 15 of filter plate 14 to pull filter plate 14 away from the retaining strip 16, and insert the new filter plate 14 back in to complete the replacement of filter plate 14 without stopping the machine.
[0036] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.
Claims
1. A fume extraction mechanism for wire soldering, characterized in that, include: A collection bucket (1) is provided with a cover (2), and a disc (12) is provided inside the collection bucket (1). The cover (2) has two lifting openings (3) on its surface. Divider (13), four divider (13) are provided and connected to the edge of the disc (12), the divider (13) is in contact with the collection bucket (1), and the upper end of the divider (13) is in contact with the cover (2); The filter plate (14) is provided in four pieces, and the upper end of the filter plate (14) is in contact with the partition strip (13). The four filter plates (14) are respectively installed between two partition strips (13). The collection bucket (1) is provided with an air inlet pipe (4) and an air outlet pipe (11) on the left and right sides. Rotate the disc (12) to make the separator (13) drive the filter plate (14) to rotate. The two filter plates (14) are aligned with the air inlet pipe (4) and the air outlet pipe (11) to achieve filtration. The other two are aligned with the lifting port (3) to achieve replacement.
2. The fume extraction mechanism for wire soldering according to claim 1, characterized in that: The center of the disc (12) is connected to a rotating rod (17) that passes through the cover (2), and a handle (18) is inserted into the upper end of the rotating rod (17).
3. The fume extraction mechanism for wire soldering according to claim 1, characterized in that: The surface of the separator (13) is provided with a retaining strip (16), and the filter plate (14) slides inside the retaining strip (16).
4. The fume extraction mechanism for wire soldering according to claim 1, characterized in that: The filter plate (14) is provided with a handle (15) on its surface.
5. The fume extraction mechanism for wire soldering according to claim 1, characterized in that: A sealing gasket (19) is connected to the lower surface of the cover (2).
6. The fume extraction mechanism for wire soldering according to claim 1, characterized in that: The air inlet pipe (4) and the air outlet pipe (11) are respectively connected to an air extractor (10) and a smoke hood (5).
7. The fume extraction mechanism for wire soldering according to claim 6, characterized in that: A workbench (7) is provided below the smoke hood (5), and a ventilation box (6) is connected to the workbench (7). A fan (8) is installed on the side of the ventilation box (6), and an air outlet (9) is provided on the surface of the workbench (7).
8. The fume extraction mechanism for wire soldering according to claim 7, characterized in that: The air outlet (9) on the surface of the workbench (7) is tilted toward the center, away from the center point.