Welding device with dustproof structure

By designing a simplified welding device structure, combined with a high-pressure centrifugal fan and filter components, the filter screen can be easily disassembled and dust collected, solving the problems of dust diffusion and cleaning difficulties in existing devices, and improving safety and efficiency.

CN224143792UActive Publication Date: 2026-04-21DONGGUAN FOREST WOOD HARDWARE MASCH CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
DONGGUAN FOREST WOOD HARDWARE MASCH CO LTD
Filing Date
2025-05-22
Publication Date
2026-04-21

AI Technical Summary

Technical Problem

The existing welding equipment has a complex structure, and dust easily falls off when the filter screen is replaced, increasing the cleaning workload. Moreover, the dust spreads seriously, endangering the health of operators and the safety of equipment.

Method used

A welding device comprising a workbench, welding machine, dust cover, connecting pipe, high-pressure centrifugal fan, and filter assembly was designed. Through the combination of support frame, connecting block, filter screen, protective plate, and storage frame, the filter screen can be easily disassembled and dust collected. Combined with the negative pressure adsorption of the high-pressure centrifugal fan, dust diffusion is suppressed.

Benefits of technology

It simplifies the filter removal process, reduces dust falling, improves cleaning efficiency, effectively inhibits dust diffusion, and protects the health of operators and the safety of equipment.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the technical field of welding devices, in particular to a welding device with a dustproof structure, which comprises a working table, a welding machine, a dustproof cover, a connecting pipe, a high-pressure centrifugal fan and a filter component, the welding machine is arranged on the upper surface of the working table, and the dustproof cover is positioned outside the welding machine. The high-pressure centrifugal fan is arranged on the upper surface of the dustproof cover, the connecting pipe is connected between an exhaust inlet of the high-pressure centrifugal fan and the bottom end of the dustproof cover, and the filtering assembly is arranged on the inner wall of the dustproof cover close to one side of the connecting pipe; the filter assembly comprises a supporting frame, a connecting block, a filter screen, a protection plate and a storage frame; the side plates at the two ends of the supporting frame are longer than the side plates on the two sides of the supporting frame, the connecting blocks are inserted into the two ends of the top of the supporting frame, and the filter screens are fixed to the inner sides of the connecting blocks. The dust cover has the advantages that the structure is simple, the design is reasonable, meanwhile, the filter screen can be stably and properly taken out from the dust cover, dust is prevented from falling into the dust cover, and the cleaning workload is increased.
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Description

Technical Field

[0001] This utility model relates to the field of welding equipment technology, specifically a welding equipment with a dustproof structure. Background Technology

[0002] In welding processes, high-temperature electric arcs or lasers can cause metal or non-metal materials to evaporate and oxidize, generating a large amount of fumes and harmful gases. These dust particles are tiny and contain heavy metals, oxides, and toxic gases. Long-term exposure can seriously endanger the respiratory health of operators and cause short circuits and wear of moving parts in equipment. Therefore, the dustproof design of welding equipment is crucial to ensuring production safety and process quality.

[0003] Existing welding devices have complex structures and unreasonable designs. In actual use, the filter screen needs to be replaced regularly to avoid a decrease in the efficiency of dust adsorption. However, when the filter screen is removed, dust will fall off, increasing the workload of disassembling and assembling the filter screen. To address this problem, the inventor designed a welding device with a dustproof structure. Utility Model Content

[0004] The purpose of this utility model is to provide a welding device with a dustproof structure, which has the advantages of simple structure, reasonable design, and the ability to smoothly and properly remove the filter screen from inside the dustproof cover, avoiding dust falling into the dustproof cover and increasing the cleaning workload, thus solving the problems mentioned in the above technical background.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a welding device with a dustproof structure, the welding device including a workbench, a welding machine, a dust cover, a connecting pipe, a high-pressure centrifugal fan and a filter assembly, wherein the welding machine is disposed on the upper surface of the workbench, the dust cover is located outside the welding machine, the high-pressure centrifugal fan is disposed on the upper surface of the dust cover, the connecting pipe is connected between the air inlet of the high-pressure centrifugal fan and the bottom end of the dust cover, and the filter assembly is disposed on the inner wall of the dust cover near the connecting pipe;

[0006] The filter assembly includes a support frame, connecting blocks, a filter screen, a protective plate, and a storage frame. The side plates at both ends of the support frame are longer than the side plates on both sides of the support frame. The connecting blocks are inserted into the top two ends of the support frame. The filter screen is fixed to the inside of the connecting blocks. The protective plate is attached to the top of the filter screen, and the surface of the protective plate is attached to the inner wall of the dust cover. The storage frame is fitted into the bottom end of the support frame.

[0007] Preferably, threaded posts are fixed to the top of both ends of the support frame, and the threaded posts are connected through the interior of the connecting block and the protective plate.

[0008] Preferably, the outer surface of the threaded column is threaded with a nut, and the storage frame is provided with a reinforcing member on the side near the welding machine.

[0009] Preferably, the reinforcing component includes a first connecting plate, a second connecting plate, and a connecting post; the first connecting plate is fixed to the outer surface of the support frame, the second connecting plate is fixed to the outer surface of the storage frame, the first connecting plate and the second connecting plate are on the same horizontal line, the connecting post is fixed to the upper surface of the first connecting plate, and the connecting post penetrates and connects to the interior of the second connecting plate.

[0010] Preferably, a rotating column is rotatably connected to the top of the connecting column, and a magnet block is fixed inside the rotating column. A magnet block is fixed on the upper surface of the first connecting plate, and the two sets of magnet blocks are on the same horizontal line.

[0011] Preferably, a PLC controller is provided on the upper surface of the workbench on the side away from the filter assembly.

[0012] Preferably, the connecting pipe consists of a main pipe and three branch pipes, with the branch pipes located at the bottom of the main pipe and inserted inside the dust cover.

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

[0014] 1. This utility model provides a welding device with a dustproof structure. The welding device includes a workbench, a welding machine, a dust cover, a connecting pipe, a high-pressure centrifugal fan, and a filter assembly. The filter assembly includes a support frame, a connecting block, a filter screen, a protective plate, and a storage frame. The overall structure is simple and reasonably designed. Through the support frame and storage frame, when the filter screen is disassembled, the dust falling from the filter screen can be properly collected. With the cooperation of the reinforcement, the storage frame and the filter plate fit more tightly, preventing dust from falling into the gaps, thereby reducing the workload of the cleaning device.

[0015] 2. This utility model effectively suppresses the diffusion of welding dust and reduces air pollution through the negative pressure adsorption of the dust cover and high-pressure centrifugal fan. In addition, the main pipe + bottom branch pipe design of the connecting pipe can adsorb dust in the welding process more quickly and effectively. Attached Figure Description

[0016] Figure 1 This is a three-dimensional schematic diagram of the present invention;

[0017] Figure 2 This is a structural diagram of the welding machine of this utility model;

[0018] Figure 3 This is a structural diagram of the dust cover of this utility model;

[0019] Figure 4 This is a structural diagram of the filter assembly of this utility model;

[0020] Figure 5This is a structural diagram of the storage frame of this utility model;

[0021] Figure 6 This is a cross-sectional view of the reinforcement component of this utility model.

[0022] The reference numerals and names in the figure are as follows:

[0023] 1. Workbench; 2. Welding machine; 3. Dust cover; 4. PLC controller; 5. Connecting pipe; 6. High-pressure centrifugal fan; 7. Filter assembly; 71. Support frame; 72. Connecting block; 73. Filter screen; 74. Protective plate; 75. Threaded column; 76. Nut; 77. Storage box; 78. Reinforcing parts; 781. First connecting plate; 782. Second connecting plate; 783. Connecting column; 784. Rotating column; 785. Magnet block. Detailed Implementation

[0024] 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.

[0025] In the description of the embodiments of this utility model, it should be understood that the terms "length," "width," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing the embodiments of this utility model and simplifying the description. They 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, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined with "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the embodiments of this utility model, "multiple" means two or more, unless otherwise explicitly specified.

[0026] In this embodiment of the invention, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this embodiment of the invention according to the specific circumstances.

[0027] Please see Figures 1 to 6 The present invention provides an embodiment of a welding device with a dustproof structure, which includes a workbench 1, a welding machine 2, a dust cover 3, a connecting pipe 5, a high-pressure centrifugal fan 6, and a filter assembly 7. The welding machine 2 is disposed on the upper surface of the workbench 1, the dust cover 3 is located outside the welding machine 2, the high-pressure centrifugal fan 6 is disposed on the upper surface of the dust cover 3, the connecting pipe 5 is connected between the air intake of the high-pressure centrifugal fan 6 and the bottom end of the dust cover 3, and the filter assembly 7 is disposed on the inner wall of the dust cover 3 near the connecting pipe 5.

[0028] Workbench 1 serves as the load-bearing foundation for the welding device. Welding machine 2 is used to perform welding tasks. Dust cover 3 forms a closed space, enclosing the welding area and preventing welding dust from leaking out. High-pressure centrifugal fan 6 provides a negative pressure environment, drives airflow, and sucks the dust in the dust cover 3 into the connecting pipe 5.

[0029] The filter assembly 7 includes a support frame 71, a connecting block 72, a filter screen 73, a protective plate 74, and a storage frame 77. The side plates at both ends of the support frame 71 are longer than the side plates on both sides of the support frame 71. The connecting block 72 is inserted into the top two ends of the support frame 71. The filter screen 73 is fixed to the inner side of the connecting block 72. The protective plate 74 is attached to the top of the filter screen 73, and the surface of the protective plate 74 is attached to the inner wall of the dust cover 3. The storage frame 77 is sleeved in the bottom end of the support frame 71.

[0030] The support frame 71 carries the filter screen 73 and the storage frame 77, providing structural support. The connecting block 72 is used to fix the filter screen 73 in the required position. The filter screen 73 is used to intercept large dust particles. The protective plate 74 prevents dust from passing through the gap between the filter screen 73 and the protective cover 3. The storage frame 77 is used to collect the dust blocked by the filter screen 73, which is convenient for centralized cleaning.

[0031] Threaded posts 75 are fixed to the top of both ends of the support frame 71. The threaded posts 75 are connected through the connection block 72 and the interior of the protective plate 74.

[0032] The threaded post 75 serves as a guide, allowing the connecting block 72 and the protective plate 74 to be quickly placed in the desired position;

[0033] The outer surface of the threaded column 75 is threaded with a nut 76, and the storage box 77 is provided with a reinforcing member 78 on the side near the welding machine 2;

[0034] Nut 76 is used to securely fix the protective plate 74 in the desired position;

[0035] The reinforcement component 78 includes a first connecting plate 781, a second connecting plate 782, and a connecting post 783; the first connecting plate 781 is fixed to the outer surface of the support frame 71, the second connecting plate 782 is fixed to the outer surface of the storage frame 77, the first connecting plate 781 and the second connecting plate 782 are on the same horizontal line, and the connecting post 783 is fixed to the upper surface of the first connecting plate 781, and the connecting post 783 penetrates and connects to the interior of the second connecting plate 782.

[0036] The first connecting plate 781 is used to support and install the connecting column 783. The connecting column 783 is used to connect the first connecting plate 781 and the second connecting plate 782 together, thereby connecting the support frame 71 and the storage frame 77 together.

[0037] A rotating column 784 is rotatably connected to the top of the connecting column 783. A magnet block 785 is fixed inside the rotating column 784. A magnet block 785 is fixed on the upper surface of the first connecting plate 781. The two sets of magnet blocks 785 are on the same horizontal line.

[0038] By changing the state of the rotating column 784, the locking and releasing of the second connecting plate 782 can be completed. The magnet block 785 is used to connect the rotating column 784 and the second connecting plate 782 together.

[0039] A PLC controller 4 is installed on the upper surface of the workbench 1 on the side away from the filter assembly 7;

[0040] PLC controller 4 centrally controls the start and stop of welding machine 2 and high-pressure centrifugal fan 6;

[0041] The connecting pipe 5 consists of a main pipe and three branch pipes. The branch pipes are located at the bottom of the main pipe and are inserted inside the dust cover 3.

[0042] The main pipe of the connecting pipe 5 is connected to the air inlet of the high-pressure centrifugal fan 6, while the branch pipes are distributed at the bottom of the dust cover 3, so that the device can evenly adsorb the dust generated during welding.

[0043] Working principle: When the product needs to be processed, first open the dust cover 3, place the product in the required position, close the cabinet door of the dust cover 3, start the welding machine 2 and the high-pressure centrifugal fan 6 through the PLC controller, the welding machine 2 welds the product, and the high-pressure centrifugal fan 6, through the connecting pipe 5, makes the dust cover 3 in a negative pressure environment and adsorbs the dust in the welding process. Then, the dust can be discharged through the air outlet of the high-pressure centrifugal fan 6. Moreover, with the design of the filter screen 73, coarse dust can be blocked inside the storage frame 77.

[0044] When the filter screen 73 needs to be replaced, first remove the nut 76 from the surface of the threaded post 75, then remove the protective plate 74 and the connecting block 72 from the inside of the support frame 71. Apply an upward force to the rotating post 784 so that the rotating post 784 is in a vertical position. Place the filter screen 73 inside the storage frame 77. Then apply an upward lifting force to the second connecting plate 782 to remove the filter screen 73 from the inside of the dust cover 3. After cleaning the filter screen 73 and the storage frame 77, place the filter screen 73 inside the support frame 71 so that the connecting block 72 is inserted into the top of the support frame 71. Place the protective plate 74 on top of the filter screen 73. Then turn the nut 76 onto the surface of the threaded post 75 and apply a downward flipping force to the rotating post 784 so that the two sets of magnet blocks 785 are connected together.

[0045] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. A welding apparatus with a dustproof structure, characterized in that, include: The workbench (1), welding machine (2), dust cover (3), connecting pipe (5), high-pressure centrifugal fan (6) and filter assembly (7) are provided. The welding machine (2) is located on the upper surface of the workbench (1), the dust cover (3) is located outside the welding machine (2), the high-pressure centrifugal fan (6) is located on the upper surface of the dust cover (3), the connecting pipe (5) is connected between the air inlet of the high-pressure centrifugal fan (6) and the bottom end of the dust cover (3), and the filter assembly (7) is located on the inner wall of the dust cover (3) near the side of the connecting pipe (5). The filter assembly (7) includes a support frame (71), a connecting block (72), a filter screen (73), a protective plate (74), and a storage frame (77). The side plates at both ends of the support frame (71) are longer than the side plates on both sides of the support frame (71). The connecting block (72) is inserted into the top two ends of the support frame (71). The filter screen (73) is fixed to the inside of the connecting block (72). The protective plate (74) is attached to the top of the filter screen (73), and the surface of the protective plate (74) is attached to the inner wall of the dust cover (3). The storage frame (77) is fitted into the bottom end of the support frame (71).

2. The welding device with a dustproof structure according to claim 1, characterized in that, The top of both ends of the support frame (71) is fixed with threaded posts (75), which are connected through the connecting block (72) and the interior of the protective plate (74).

3. The welding device with a dustproof structure according to claim 2, characterized in that, The outer surface of the threaded column (75) is threaded with a nut (76), and the storage box (77) is provided with a reinforcement (78) on the side near the welding machine (2).

4. The welding device with a dustproof structure according to claim 3, characterized in that, The reinforcement component (78) includes a first connecting plate (781), a second connecting plate (782), and a connecting post (783); the first connecting plate (781) is fixed on the outer surface of the support frame (71), the second connecting plate (782) is fixed on the outer surface of the storage frame (77), the first connecting plate (781) and the second connecting plate (782) are on the same horizontal line, the connecting post (783) is fixed on the upper surface of the first connecting plate (781), and the connecting post (783) penetrates and connects to the interior of the second connecting plate (782).

5. The welding device with a dustproof structure according to claim 4, characterized in that, The top of the connecting column (783) is rotatably connected to a rotating column (784), and a magnet block (785) is fixed inside the rotating column (784). A magnet block (785) is fixed on the upper surface of the first connecting plate (781), and the two sets of magnet blocks (785) are on the same horizontal line.

6. The welding device with a dustproof structure according to claim 1, characterized in that, A PLC controller (4) is provided on the upper surface of the workbench (1) away from the filter assembly (7).

7. The welding device with a dustproof structure according to claim 1, characterized in that, The connecting pipe (5) consists of a main pipe and three branch pipes. The branch pipes are located at the bottom of the main pipe and are inserted inside the dust cover (3).