Novel wall-mounted welding fume filtering device

The design, which combines a built-in cylinder with a rotating cylinder, solves the problems of inconvenient cleaning and clogging of wall-mounted welding fume filters, achieving convenient cleaning and efficient filtration while reducing space occupation.

CN223788246UActive Publication Date: 2026-01-13SHANGHAI HUHAN IND ENGINEERING CO LTD
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Patent Information

Application Number
CN202520045673.2
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-01-09
Publication Date
2026-01-13
Estimated Expiration
2035-01-09

AI Technical Summary

Technical Problem

Existing wall-mounted welding fume filtration devices are inconvenient to clean and maintain, prone to clogging, and affect filtration quality.

Method used

The design incorporates a built-in suction tube and a rotating drum, which uses a fan to generate negative pressure to absorb smoke and dust. After use, the suction tube is manually pushed to rotate the drum, and the built-in tube scraper cleans the surface of the filter tube to prevent clogging. When not in use, the suction tube can be placed against the wall to reduce space occupation.

Benefits of technology

It enables convenient cleaning of the filter device, prevents clogging, ensures filtration quality, and reduces space occupation.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a novel wall-mounted welding fume filtering device, relates to the technical field of filtering devices, and aims to solve the technical problems that the current wall-mounted filtering device is inconvenient to clean and maintain and is easy to block to influence the filtering quality, the novel wall-mounted welding fume filtering device comprises a frame body and a rotary drum, and the rear end of the frame body is provided with an assembly frame and a built-in piece; a fan is arranged at the upper end of the frame body, a bottom cylinder is arranged at the lower end of the frame body, a filter cylinder is installed in the bottom cylinder, the rotating cylinder is rotatably installed on the inner side of the frame body through a bearing, a built-in cylinder is installed in the rotating cylinder, side grooves are formed in the lower end of the outer side of the built-in cylinder in an annular array mode, and a connecting pipe is arranged at the front end of the rotating cylinder in a penetrating mode; and a dust suction pipe is mounted at the outer end of the connecting pipe. The filter cartridge cleaning device has the advantages that the filter cartridge cleaning function is convenient, the cleaning difficulty is reduced, and the filtering quality is ensured.
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Description

Technical Field

[0001] This utility model relates to the field of filtration device technology, and more specifically, to a novel wall-mounted welding fume filtration device. Background Technology

[0002] The wall-mounted welding fume filtration device is a device used to treat the fumes generated during the welding process. It generates negative pressure through the exhaust fan to draw the fumes generated in the welding area into the purification chamber through the universal duct. The fumes are then filtered by the filter element to remove harmful substances and fine particles from the fumes, so that the emitted air meets environmental protection standards.

[0003] Existing welding fume filtration devices are generally designed for portability, while those used in automotive manufacturing welding workshops are typically wall-mounted. This high-position suspension makes cleaning the internal dust removal mechanism inconvenient, easily causing clogging and requiring manual operation from a height, thus increasing the difficulty of cleaning and maintenance. Therefore, we propose a novel wall-mounted welding fume filtration device. Utility Model Content

[0004] The purpose of this utility model is to overcome the shortcomings of the existing technology, adapt to the needs of reality, and provide a new type of wall-mounted welding fume filtration device to solve the technical problems of inconvenient cleaning and maintenance of current wall-mounted filtration devices and easy clogging that affects filtration quality.

[0005] To solve the above-mentioned technical problems, this utility model provides the following technical solution: a novel wall-mounted welding fume filtration device, comprising a frame and a rotating cylinder, wherein the rear end of the frame is provided with an assembly frame and an internal plate, the upper end of the frame is provided with a fan, the lower end of the frame is provided with a bottom cylinder, and a filter cylinder is installed inside the bottom cylinder, the rotating cylinder is rotatably mounted on the inner side of the frame via a bearing, an internal cylinder is installed inside the rotating cylinder, the lower outer side of the internal cylinder is provided with a side groove in a circular array, and a connecting pipe is provided through the front end of the rotating cylinder, and a dust suction pipe is installed at the outer end of the connecting pipe.

[0006] In use, this invention is powered by an external power source. The operator starts the device via an external control device, which activates the fan to generate negative pressure for absorption. Smoke and dust are drawn into the rotating drum through the suction pipe and into the bottom cylinder through the air vent. After being filtered by the filter cylinder, the airflow is guided through the top opening of the filter cylinder to the inner cavity of the inner cylinder, and then discharged outwards through the upper opening of the rotating drum by the fan. After use, the outer end of the suction pipe can be manually pushed, causing the rotating drum to rotate in conjunction with the bearings. The rotating drum synchronously drives the inner cylinder to rotate, and the scraper blades on the inner cylinder deflect to filter... The surface of the filter cylinder is scraped and cleaned to prevent clogging. The manual rotation design described above completes the cleaning of the filter mechanism, preventing clogging from affecting the filtration quality. After the work is completed, the vacuum hose is pushed to rotate the cylinder. When not in use, the extended vacuum hose can be placed against the wall inside the workshop to reduce space occupation. The side groove on the lower side of the inner cylinder and the bottom opening of the rotating cylinder form a vent. The vent can guide airflow and facilitate the scraper to extend and adhere to the surface of the filter cylinder to complete the cleaning operation.

[0007] Preferably, the built-in piece fits against the inner wall of the frame, the assembly frame fits against the rear side of the frame, and the assembly frame and the built-in piece are connected by a fixing screw, and a wall-mounting opening is provided on the rear side of the assembly frame.

[0008] Preferably, a vent is formed between the bottom of the side groove of the inner cylinder and the lower opening of the rotating cylinder, and the vent communicates with the interior of the bottom cylinder.

[0009] Preferably, an assembly piece is fixed in the side groove by screws, and a scraper is fixed at the lower end of the assembly piece. The scraper passes through the air vent and fits against the outer wall of the filter cartridge.

[0010] Preferably, the connecting pipe is provided with a partition screen inside, the upper opening of the filter cylinder is connected to the bottom opening of the rotating cylinder, and the upper opening of the rotating cylinder is connected to the fan.

[0011] Preferably, the bottom cylinder has fixing parts on both sides of its upper end, and the fixing parts are connected to the bottom of the frame by screws. The bottom of the bottom cylinder has a limiting ring, and the lower end of the filter cylinder is connected to the limiting ring.

[0012] Preferably, the connection ends of the fan and the bottom cylinder are both provided with annular recesses, and the annular recesses correspond to the bearing parts of the rotating cylinder.

[0013] Compared with the prior art, the beneficial effects of this utility model are:

[0014] 1. This utility model features an internal cylinder design. When the fan is activated, negative pressure is generated for absorption. Smoke and dust are introduced into the rotating cylinder through the suction pipe and then into the bottom cylinder through the vent. After being filtered by the filter cylinder, the airflow is guided through the top opening of the filter cylinder to the internal cavity of the internal cylinder, and then through the upper opening of the rotating cylinder to be discharged outward by the fan. After use, the outer end of the suction pipe can be manually pushed, which drives the rotating cylinder to rotate in conjunction with the bearing. The rotating cylinder synchronously drives the internal internal cylinder to rotate. The scraper blades on the internal cylinder deflect and clean the surface of the filter cylinder, preventing clogging. Through the above-mentioned manual rotation design, the cleaning operation of the filtration mechanism is completed, preventing clogging from affecting the filtration quality.

[0015] 2. This utility model also incorporates a rotating drum design. After the work is completed, pushing the suction pipe drives the rotating drum to rotate. When not in use, the outward-extending suction pipe can be attached to the interior wall of the workshop, reducing space occupation. The side groove on the lower side of the inner drum and the bottom opening of the rotating drum form a ventilation port, which can guide airflow and facilitate the scraper to extend out and attach to the surface of the filter cartridge to complete the cleaning operation. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the main structure of this utility model;

[0017] Figure 2 This is a schematic diagram of the frame structure of this utility model;

[0018] Figure 3 This is a schematic diagram of the rear view structure of this utility model;

[0019] Figure 4 This is a cross-sectional structural diagram of the present invention;

[0020] Figure 5 This is a schematic diagram of the bottom cylinder structure of this utility model;

[0021] Figure 6 This is a schematic diagram of the connection structure of this utility model;

[0022] Figure 7 This is a schematic diagram of the rotating drum structure of this utility model.

[0023] The following are the labels in the diagram: 1. Frame; 101. Fan; 2. Assembly frame; 201. Fixing screw; 202. Wall mounting port; 203. Internal plate; 3. Rotary drum; 301. Connecting pipe; 302. Partition screen; 4. Bottom cylinder; 401. Filter cylinder; 5. Suction pipe; 6. Scraper; 7. Internal cylinder; 701. Side groove; 702. Assembly plate; 703. Vent. Detailed Implementation

[0024] like Figures 1 to 6As shown, this utility model relates to a novel wall-mounted welding fume filtration device, comprising a frame 1 and a rotating cylinder 3. The rear end of the frame 1 is provided with an assembly frame 2 and an internal plate 203. The internal plate 203 fits against the inner wall of the frame 1, and the assembly frame 2 fits against the rear side of the frame 1. The assembly frame 2 and the internal plate 203 are connected by a fixing screw 201. A wall-mounting opening 202 is provided on the rear side of the assembly frame 2, allowing the entire device to be suspended. A fan 101 is provided at the upper end of the frame 1, and a bottom cylinder 4 is provided at the lower end of the frame 1. A filter cylinder 401 is installed inside the bottom cylinder 4. The rotating cylinder 3 is rotatably mounted inside the frame 1 via bearings. An internal cylinder 7 is installed inside the rotating cylinder 3. Side grooves 701 are arranged in a circular array at the lower outer side of the internal cylinder 7. A vent 703 is formed between the bottom of the side grooves 701 of the internal cylinder 7 and the lower opening of the rotating cylinder 3, and the vent 703 connects to the interior of the bottom cylinder 4. An assembly piece 702 is fixed inside the filter cartridge 401 by screws. A scraper 6 is fixed to the lower end of the assembly piece 702. The scraper 6 passes through the vent 703 and fits against the outer wall of the filter cartridge 401. When the fan 101 is started, negative pressure is generated to absorb the dust. The dust is introduced into the rotating cylinder 3 through the suction pipe 5 and into the bottom cylinder 4 through the vent 703. The airflow filtered by the filter cartridge 401 is guided through the top opening of the filter cartridge 401 to the inner cavity of the inner cylinder 7, and then guided outward by the fan 101 through the upper opening of the rotating cylinder 3. After use, the outer end of the suction pipe 5 can be manually pushed. The suction pipe 5 drives the rotating cylinder 3 to rotate in conjunction with the bearing. The rotating cylinder 3 drives the inner cylinder 7 to rotate synchronously. The scraper 6 on the inner cylinder 7 deflects to scrape and clean the surface of the filter cartridge 401, avoiding blockage. Through the above-mentioned manual pushing and rotating design, the cleaning operation of the filtration mechanism is completed, preventing the filtration quality from being affected by blockage.

[0025] like Figures 2 to 7 As shown, this utility model relates to a novel wall-mounted welding fume filtration device, comprising a frame 1 and a rotating cylinder 3. A connecting pipe 301 extends through the front end of the rotating cylinder 3, and a suction pipe 5 is installed at the outer end of the connecting pipe 301. A mesh 302 is provided inside the connecting pipe 301. The upper opening of the filter cylinder 401 is connected to the bottom opening of the rotating cylinder 3, and the upper opening of the rotating cylinder 3 is connected to a fan 101. Fixing members are provided on both sides of the upper end of the bottom cylinder 4, and these fixing members are connected to the bottom of the frame 1 via screws. A limiting ring is provided at the bottom end inside the bottom cylinder 4, and the lower end of the filter cylinder 401... The connecting end of the fan 101 and the bottom cylinder 4 is provided with an annular notch, and the annular notch corresponds to the bearing part of the rotating cylinder 3. After the work is completed, the suction pipe 5 is pushed to drive the rotating cylinder 3 to rotate. When the suction pipe 5 is not in use, the outwardly extended suction pipe 5 can be attached to the wall inside the workshop to reduce the space occupation. The side groove 701 on the lower side of the inner cylinder 7 and the bottom opening of the rotating cylinder 3 form a vent 703. The vent 703 can guide the airflow and at the same time facilitate the scraper 6 to extend out and attach to the surface of the filter cylinder 401 to complete the cleaning operation.

[0026] Working Principle: This embodiment provides a novel wall-mounted welding fume filtration device. During use, it is powered by an external power source. The operator starts the device via an external control device, activating the fan 101 to generate negative pressure for absorption. Fumes are drawn into the rotating drum 3 through the suction pipe 5 and then into the bottom cylinder 4 through the air vent 703. The airflow filtered by the filter cylinder 401 is guided through the top opening of the filter cylinder 401 to the internal cavity of the inner cylinder 7, and then discharged outwards through the upper opening of the rotating drum 3 guided by the fan 101. After use, the outer end of the suction pipe 5 can be manually pushed, causing the rotating drum 3 to rotate in conjunction with the bearings to complete the process. The rotating drum 3 synchronously drives the internal inner drum 7 to rotate. The scraper 6 on the inner drum 7 deflects to scrape and clean the surface of the filter cartridge 401, avoiding clogging. After the work is completed, the suction pipe 5 is pushed to drive the rotating drum 3 to rotate. When not in use, the suction pipe 5 can be attached to the wall inside the workshop to reduce space occupation. The side groove 701 on the lower side of the inner drum 7 and the bottom opening of the rotating drum 3 form a vent 703. The vent 703 can guide the airflow and at the same time make it easy for the scraper 6 to extend and attach to the surface of the filter cartridge 401 to complete the cleaning operation.

[0027] The embodiments disclosed herein are preferred embodiments, but are not limited thereto. Those skilled in the art can readily grasp the spirit of this utility model based on the above embodiments and make different extensions and variations. However, as long as they do not depart from the spirit of this utility model, they are all within the protection scope of this utility model.

Claims

1. A new type of wall-mounted welding fume filtering device, comprising a frame (1) and a rotating drum (3), characterized in that: The rear end of the frame (1) is provided with an assembly frame (2) and an inner sheet (203), the upper end of the frame (1) is provided with a fan (101), the lower end of the frame (1) is provided with a bottom cylinder (4), and the bottom cylinder (4) is provided with a filter cylinder (401), the rotary drum (3) is rotatably installed on the inner side of the frame (1) through a bearing, the inner side of the rotary drum (3) is provided with an inner cylinder (7), the outer side of the lower end of the inner cylinder (7) is provided with a side groove (701) in an annular array, the front end of the rotary drum (3) is provided with a connecting pipe (301), and the outer end of the connecting pipe (301) is provided with a dust suction pipe (5).

2. A novel wall-mounted welding fume filtration device according to claim 1, characterized in that: The inner sheet (203) is attached to the inner wall of the frame (1), the assembly frame (2) is attached to the rear side of the frame (1), and the assembly frame (2) and the inner sheet (203) are connected by a fixed screw rod (201), and the rear side of the assembly frame (2) is provided with a wall hanging opening (202).

3. A novel wall-mounted welding fume filtration device according to claim 2, characterized in that: The bottom of the side groove (701) of the inner cylinder (7) and the lower end opening of the rotary drum (3) form an air vent (703), and the air vent (703) is communicated with the inside of the bottom cylinder (4).

4. A novel wall-mounted welding fume filtration device according to claim 3, characterized in that: The side groove (701) is fixed with an assembly sheet (702) through a screw, the lower end of the assembly sheet (702) is fixed with a scraping sheet (6), and the scraping sheet (6) is attached to the outer wall of the filter cylinder (401) after passing through the air vent (703).

5. A novel wall-mounted welding fume filtration device according to claim 4, characterized in that: The inner side of the connecting pipe (301) is provided with a screen (302), the upper end opening of the filter cylinder (401) is connected with the bottom opening of the rotary drum (3), and the upper end opening of the rotary drum (3) is connected with the fan (101).

6. A new wall-mounted welding fume filtering device according to claim 1, characterized in that: The upper end of the bottom cylinder (4) is provided with a fixing piece on both sides, and the fixing piece is connected with the bottom of the frame (1) through a screw rod, the inner bottom end of the bottom cylinder (4) is provided with a limiting ring, and the lower end of the filter cylinder (401) is connected with the limiting ring.

7. A new wall-mounted welding fume filtering device according to claim 1, characterized in that: The connecting end of the fan (101) and the bottom cylinder (4) is provided with an annular notch, and the annular notch corresponds to the bearing part of the rotary drum (3).