Gas-collecting hood for coating processing

Abstract

The utility model relates to the technical field of gas-collecting hoods, and discloses a gas-collecting hood for coating processing, which comprises a gas-collecting hood body, a pipeline is arranged at the top of the gas-collecting hood body, and a connecting component is arranged between the gas-collecting hood body and the pipeline; the connecting assembly comprises an extension pipe, the bottom of the extension pipe is fixedly connected to the top of the gas-collecting hood body, a baffle is fixedly connected to the top of the gas-collecting hood body, the pipeline is slidably connected between the extension pipe and the baffle, and a second convex ring is fixedly connected to the outer wall of the pipeline. According to the utility model, the bottom of the pipeline is inserted between the extension pipe and the baffle plate, the gas-collecting hood body and the pipeline are sealed through the extension pipe and the sealing ring in the baffle plate, and the hoop I and the hoop II are buckled on the baffle plate and the outer wall of the pipeline, so that the effects of improving the connection sealing performance and facilitating installation are achieved; the problem that the direct connection strength between the pipeline and the gas-collecting hood is poor is solved, and the connection strength of the gas-collecting hood is improved.

Description

Technical Field

[0001] This utility model relates to the field of gas collection hood technology, and in particular to a gas collection hood for coating processing. Background Technology

[0002] In paint processing, spraying, and related chemical operations, pollutants such as volatile organic compounds (VOCs) and particulate dust from the paint can easily diffuse during the process, affecting not only the air quality of the operating environment but also posing safety hazards. To control and collect these harmful gases, fume hoods are typically installed in painting workshops or on equipment. These hoods, connected to the ventilation and exhaust system, enable centralized extraction of gases from the work area, thus meeting both environmental protection and operational safety requirements. As the first line of defense for pollution source collection, the structural strength, sealing performance, and connection stability of the fume hood directly affect the gas collection efficiency and the reliability of the equipment.

[0003] Currently, most existing gas collection hoods connect the hood body to the exhaust pipe using methods such as flange connections, screw fastenings, and clamp connections. These structures generally achieve sealing and fixation through rigid connections, supplemented by auxiliary components such as sealing gaskets to improve airtightness. During assembly and disassembly, tools such as wrenches and screwdrivers are often required to complete the assembly or disassembly of the connecting parts, making the process relatively cumbersome. Some gas collection hoods also use welding to form a fixed connection. Although this provides better structural stability, maintenance or replacement is complex and time-consuming, failing to meet the convenience requirements of high-frequency maintenance.

[0004] However, existing gas collection hoods, when connected to pipelines, often employ direct connections, resulting in insufficient sealing between the pipeline end and the hood body. This leads to low structural strength and a tendency for loosening or gas leakage, particularly noticeable in high-negative-pressure environments, impacting the overall system exhaust performance. Furthermore, some connection methods are complex to install and disassemble, relying on tools and hindering rapid on-site replacement and equipment maintenance, thus limiting the adaptability and flexibility of the gas collection hood under varying operating conditions. Therefore, there is an urgent need for a gas collection hood structure that is structurally sound, provides excellent sealing, and is easy to install and disassemble, addressing the problems of poor sealing, insufficient connection strength, and inconvenient maintenance in existing technologies. Utility Model Content

[0005] To overcome the above deficiencies, this utility model provides a gas collection hood for coating processing, which aims to improve the problem of poor direct connection strength between the gas collection hood and the pipeline during installation.

[0006] To achieve the above objectives, the present invention adopts the following technical solution: a gas collection hood for coating processing, comprising a gas collection hood body, a pipe provided on the top of the gas collection hood body, and a connecting component provided between the gas collection hood body and the pipe;

[0007] The connecting assembly includes an extension tube, the bottom of which is fixedly connected to the top of the gas collecting hood body. A baffle is fixedly connected to the top of the gas collecting hood body. The pipe is slidably connected between the extension tube and the baffle. A second protruding ring is fixedly connected to the outer wall of the pipe. A first protruding ring is fixedly connected to the outer wall of the baffle. A sealing assembly is provided between the extension tube and the baffle.

[0008] As a further description of the above technical solution:

[0009] The sealing assembly includes a sealing ring, which is fitted between the extension tube and the baffle, with the bottom of the tube abutting against the top of the sealing ring.

[0010] As a further description of the above technical solution:

[0011] Both the outer walls of the first and second convex rings are provided with clamps, and one side of the clamps is rotatably connected to clamps.

[0012] As a further description of the above technical solution:

[0013] Both clamp one and clamp two have a limit ring fixedly connected to their inner walls, and both clamp one and clamp two have a connecting groove.

[0014] As a further description of the above technical solution:

[0015] The outer walls of the first and second convex rings are fitted into the connecting groove.

[0016] As a further description of the above technical solution:

[0017] A connecting plate is fixedly connected to one side of the clamp, and a hook is fixedly connected to one side of the clamp.

[0018] As a further description of the above technical solution:

[0019] A rotating shaft is rotatably connected to one side of the connecting plate, and an angle iron is fixedly connected to the outer wall of the rotating shaft.

[0020] As a further description of the above technical solution:

[0021] A handle is fixedly connected to one side of the angle iron, and a second rotating shaft is rotatably connected to the other side of the angle iron. A U-shaped buckle is inserted inside the second rotating shaft, and a fastening bolt is threaded to one end of the U-shaped buckle.

[0022] This utility model has the following beneficial effects:

[0023] 1. In this utility model, the bottom of the pipe is first inserted between the extension pipe and the baffle. Then, the gas collection hood body and the pipe are sealed by the sealing ring inside the extension pipe and the baffle. Then, clamp one and clamp two are fastened to the baffle and the outer wall of the pipe, which achieves the effect of improving the connection sealing and facilitating installation. It solves the problem of poor direct connection strength between the pipe and the gas collection hood during installation and improves the connection strength of the gas collection hood.

[0024] 2. In this utility model, the U-shaped buckle on one side of the clamp is fastened into the hook on the other side of the clamp. Then, by using the handle to drive the angle iron to rotate around the pivot, the U-shaped buckle and the pivot are at a certain angle, thereby preventing the U-shaped buckle from loosening. This achieves the effect of easy disassembly and assembly, solving the problem that it is inconvenient to disassemble and assemble the gas collection hood with tools when connecting it to the pipeline, and improving the convenience of the gas collection hood. Attached Figure Description

[0025] Figure 1 This is a perspective view of a gas collection hood for coating processing proposed in this utility model;

[0026] Figure 2 This is a schematic diagram of the main structure of a gas collection hood for coating processing proposed in this utility model.

[0027] Figure 3 This is a cross-sectional view of the extension tube of a gas collection hood for coating processing proposed in this utility model;

[0028] Figure 4 This is a schematic diagram of the limiting ring structure of a gas collection hood for coating processing proposed in this utility model;

[0029] Figure 5 This is a schematic diagram of a U-shaped buckle structure for a gas collection hood used in paint processing, as proposed in this utility model.

[0030] Legend:

[0031] 1. Gas collection hood body; 2. Pipe; 3. Extension pipe; 4. Baffle; 5. Convex ring one; 6. Convex ring two; 7. Clamp one; 8. Limiting ring; 9. Clamp two; 10. Connecting groove; 11. Hook; 12. Connecting plate; 13. Rotating shaft one; 14. Angle iron; 15. Handle; 16. U-shaped buckle; 17. Rotating shaft two; 18. Fastening bolt; 19. Sealing ring. Detailed Implementation

[0032] 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.

[0033] Reference Figures 1-3 The present invention provides an embodiment of a gas collection hood for coating processing, comprising a gas collection hood body 1, which is used to collect harmful gases generated during spraying or processing to achieve effective concentration of pollutants. A pipe 2 is provided on the top of the gas collection hood body 1, which is used to guide gas flow and connect to the exhaust system to achieve closed-loop transportation of exhaust gas. A connecting component is provided between the gas collection hood body 1 and the pipe 2, which is used to achieve stable docking and sealing connection between the gas collection hood and the pipe 2, ensuring that the connection does not leak and has good disassembly and assembly performance.

[0034] The connecting assembly includes an extension tube 3, which extends the connection path and provides connection space. It also serves as a receiving component for the sealing and securing structure. The bottom of the extension tube 3 is fixedly connected to the top of the gas collecting hood body 1, achieving a fixed transition connection between the extension tube 3 and the gas collecting hood body 1. A baffle 4 is fixedly connected to the top of the gas collecting hood body 1, which defines the connection area and forms a pressure-bearing interface for the sealing assembly. The pipe 2 is slidably connected between the extension tube 3 and the baffle 4, allowing the pipe 2 to be smoothly inserted and cooperate with the extension tube 3 and the baffle 4 to achieve a plug-in assembly, facilitating construction. A second convex ring 6 is fixedly connected to the outer wall of the pipe 2, forming a limiting reference surface and improving the installation stability of the clamp-type structure. The outer wall of the baffle 4 is fixedly connected with a convex ring 5. The convex ring 5 and the convex ring 6 cooperate as a clamping part to ensure that the connection of the pipe 2 is firm and reliable. A sealing component is provided between the extension pipe 3 and the baffle 4. This sealing component is used to improve the overall connection sealing performance and prevent gas leakage. The sealing component includes a sealing ring 19. The sealing ring 19 is set at the connection contact part as the main sealing element to effectively prevent the leakage of harmful gases. The sealing ring 19 is fitted between the extension pipe 3 and the baffle 4 to achieve a stable fit between the sealing ring 19 and the connector and prevent loosening. The bottom of the pipe 2 is close to the top of the sealing ring 19 to ensure that the sealing ring 19 can be tightly pressed in the plugged state, thereby achieving the effective performance of the sealing function.

[0035] Reference Figure 4 and Figure 5Both convex ring 5 and convex ring 6 have clamps 7 on their outer walls. Clamps 7 are used to secure the connection in a ring, improving the stability and sealing of the pipe connection. Clamp 9 is rotatably connected to one side of clamp 7. Clamp 9 and clamp 7 form an interlocking structure, allowing for quick opening and closing, facilitating on-site installation and disassembly. Limiting rings 8 are fixedly connected to the inner walls of clamps 7 and clamp 9. Limiting rings 8 are used to axially limit convex rings 5 ​​and 6, preventing slippage during use and enhancing positioning reliability. Both inner walls of the second ring 9 are provided with connecting grooves 10. The connecting grooves 10 are used to embed and position the convex rings, improving the tightness and stability of the fit between them. The outer walls of the first convex ring 5 and the second convex ring 6 are fitted into the connecting grooves 10. The fitting structure achieves overall locking of the clamp and the connecting parts, ensuring sealing and firmness during use. A connecting plate 12 is fixedly connected to one side of the first clamp 7. The connecting plate 12 serves as a transmission fulcrum, connecting the control mechanism and the clamp body, and playing a role in transmitting drive and providing support. A hook 11 is fixedly connected to one side of the second clamp 9. The hook 11 is used for... The connecting plate 12 is rotatably connected to a U-shaped buckle 16 for quick fastening and locking. A rotating shaft 13 is rotatably connected to one side of the connecting plate 12, driving the rotation of the connecting plate 12 and providing flexible adjustment of the control action. An angle iron 14 is fixedly connected to the outer wall of the rotating shaft 13. The angle iron 14 acts as a force transmission component, converting the operation of the handle 15 into the opening or locking function of the clamp. A handle 15 is fixedly connected to one side of the angle iron 14, providing a convenient grip for manual adjustment of the clamp. On the other side, a rotating shaft 17 is rotatably connected. The rotating shaft 17 serves as a connecting shaft between the angle iron 14 and the U-shaped buckle 16, allowing the U-shaped buckle 16 to rotate with the movement of the angle iron 14. The U-shaped buckle 16 is inserted inside the rotating shaft 17. The U-shaped buckle 16 is used to engage with the hook 11 and can be tightened to achieve a locking function, ensuring that the buckle is securely fastened. One end of the U-shaped buckle 16 is threaded with a fastening bolt 18. The fastening bolt 18 is used to adjust the clamping force of the U-shaped buckle 16 and prevent loosening due to vibration or air pressure fluctuations, thereby improving safety and reliability.

[0036] Working principle: When using the gas collection hood for paint processing, firstly, when connecting the gas collection hood body 1 to the pipe 2, the bottom of the pipe 2 is inserted between the extension pipe 3 and the baffle 4. Then, the gas collection hood body 1 and the pipe 2 are sealed by the sealing ring 19 inside the extension pipe 3 and the baffle 4. Then, clamp 1 7 and clamp 2 9 are fastened to the outer wall of the baffle 4 and the pipe 2, so that clamp 1 7 and clamp 2 9 are combined and fastened by the connecting groove 10 formed by the limiting ring 8 to wrap around the convex ring 1 5 and convex ring 2 6, thereby improving the connection sealing and facilitating installation.

[0037] When it is necessary to fasten and lock clamp 7 and clamp 9 together, simply fasten the U-shaped buckle 16 on one side of clamp 7 into the hook 11 on one side of clamp 9. Then, drive the angle iron 14 to rotate around the pivot 13 by the handle 15, so that the U-shaped buckle 16 and the pivot 13 are at a certain angle, thereby preventing the U-shaped buckle 16 from loosening. The position of the U-shaped buckle 16 on the pivot 17 can be adjusted by the fastening bolt 18, so as to adapt to pipes 2 of different diameters, achieving the effect of easy disassembly and assembly.

[0038] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A gas collection hood for coating processing, comprising a gas collection hood body (1), characterized in that: A pipe (2) is provided on the top of the gas collection hood body (1), and a connecting component is provided between the gas collection hood body (1) and the pipe (2); The connecting assembly includes an extension tube (3), the bottom of which is fixedly connected to the top of the gas collecting hood body (1), a baffle (4) is fixedly connected to the top of the gas collecting hood body (1), the pipe (2) is slidably connected between the extension tube (3) and the baffle (4), a second protruding ring (6) is fixedly connected to the outer wall of the pipe (2), a first protruding ring (5) is fixedly connected to the outer wall of the baffle (4), and a sealing assembly is provided between the extension tube (3) and the baffle (4).

2. The gas collection hood for coating processing according to claim 1, characterized in that: The sealing assembly includes a sealing ring (19) which is fitted between the extension tube (3) and the baffle (4), and the bottom of the pipe (2) is in contact with the top of the sealing ring (19).

3. A gas collection hood for coating processing according to claim 1, characterized in that: Both the outer walls of the first convex ring (5) and the second convex ring (6) are provided with clamps (7), and clamps (9) are rotatably connected to one side of the first clamp (7).

4. A gas collection hood for coating processing according to claim 3, characterized in that: Limiting rings (8) are fixedly connected to the inner walls of clamp one (7) and clamp two (9), and connecting grooves (10) are provided on the inner walls of clamp one (7) and clamp two (9).

5. A gas collection hood for coating processing according to claim 4, characterized in that: The outer walls of the first convex ring (5) and the second convex ring (6) are fitted into the connecting groove (10).

6. A gas collection hood for coating processing according to claim 3, characterized in that: A connecting plate (12) is fixedly connected to one side of the clamp one (7), and a hook (11) is fixedly connected to one side of the clamp two (9).

7. A gas collection hood for coating processing according to claim 6, characterized in that: The connecting plate (12) is rotatably connected to a rotating shaft (13) on one side, and an angle iron (14) is fixedly connected to the outer wall of the rotating shaft (13).

8. A gas collection hood for coating processing according to claim 7, characterized in that: A handle (15) is fixedly connected to one side of the angle iron (14), and a rotating shaft (17) is rotatably connected to the other side of the angle iron (14). A U-shaped buckle (16) is inserted inside the rotating shaft (17), and a fastening bolt (18) is threaded to one end of the U-shaped buckle (16).

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