A fume extraction device for welding stiffener plates

Abstract

This utility model discloses a fume extraction device for rib welding, belonging to the field of rib welding technology. It includes a fume extraction pipe, with a fume extraction hood fixed to one end. The fume extraction hood has a ventilation groove inside, and a connecting port is provided at one end of the inside of the fume extraction pipe. Support frames are symmetrically fixed to the bottom of the fume extraction pipe, and a reinforcing frame is fixed to the upper end of the support frames. A positioning plate is fixed to one side of the bottom end of the support frames. This utility model, by installing a fixed fume extraction device at the rib welding point, promptly removes harmful gases generated during welding, preventing personnel exposed to this environment for extended periods from inhaling large amounts of harmful substances. This improves the working environment, avoids short-term discomfort such as eye irritation, dizziness, and nausea caused by fume dispersion, enhances employee comfort, and prevents the rapid removal of fume from obstructing the welding line, reducing rework or defects, improving welding precision, and ensuring welding quality and safe production.

Description

Technical Field

[0001] This utility model belongs to the field of stiffener welding technology, specifically relating to a fume extraction device for stiffener welding. Background Technology

[0002] The widespread application of welding technology: Electric welding is widely used in manufacturing (such as automobiles, ships, steel structures), construction and other fields. However, the welding process generates a large amount of fumes (containing metal particles, harmful gases such as ozone, nitrogen oxides, etc.), which seriously affects workers' health (such as pneumoconiosis, respiratory diseases) and the production environment (visibility, equipment pollution).

[0003] Existing welding fume extraction devices use fixed suction arms, which are inflexible and only suitable for fixed workstations. Mobile purifiers are portable but have small air volume and low processing efficiency, and are only suitable for small-scale operations. Roof exhaust fans are low-cost but cannot specifically capture fumes and can easily cause airflow turbulence in the workshop. Relying solely on natural ventilation through skylights is dependent on environmental conditions and the effect is unstable. Utility Model Content

[0004] To address the problems mentioned in the background section, this invention provides a fume extraction device for rib welding, which features a simple structure and good fume extraction effect.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a fume extraction device for welding stiffeners, comprising an exhaust pipe, an exhaust hood fixed to one end of the exhaust pipe, a ventilation groove provided inside the exhaust hood, a connecting port provided inside one end of the exhaust pipe, a support frame symmetrically fixed to the bottom end of the exhaust pipe, a reinforcing frame fixed to the upper end of the support frame, and a positioning plate fixed to one side of the bottom end of the support frame.

[0006] Preferably, a hinge is fixed to the upper end of the smoke exhaust hood, and a cover plate is fixedly installed on one side of the hinge.

[0007] Preferably, mounting plates are fixed on both sides of the exhaust duct, and the mounting plates have several screw holes inside.

[0008] Preferably, the positioning plate has mounting holes inside, and the reinforcing frame, support frame and positioning plate are welded into an integral structure.

[0009] Preferably, both the smoke exhaust hood and the smoke exhaust duct are assembled by welding four sets of cold-rolled plates.

[0010] Compared with the prior art, the beneficial effects of this utility model are: This invention, by installing a fixed fume extraction device at the weld joint of the stiffener plate, promptly removes harmful gases generated during welding. This prevents personnel exposed to this environment for extended periods from inhaling large amounts of harmful substances, improves the working environment, avoids short-term discomfort such as eye irritation, dizziness, and nausea caused by fume dispersion, enhances employee comfort, and prevents the rapid removal of fume from obstructing the welding line of sight, reducing rework or defects, improving welding precision, ensuring welding quality and safe production. By using prefabricated modular components, it can be directly installed on the factory wall and connected to the axial flow fan, saving indoor space and avoiding occupation of the production area. Attached Figure Description

[0011] Figure 1 This is a schematic diagram of the structure of this utility model; Figure 2 This is a rear view of the structure of this utility model.

[0012] In the diagram: 1. Mounting plate; 2. Reinforcing frame; 3. Support frame; 4. Smoke exhaust hood; 5. Ventilation slot; 6. Cover plate; 7. Smoke exhaust pipe; 8. Hinge; 9. Connecting interface; 10. Positioning plate. Detailed Implementation

[0013] 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.

[0014] Please see Figure 1-2 The present invention provides the following technical solution: a smoke exhaust device for welding stiffeners, including a smoke exhaust pipe 7, a smoke exhaust cover 4 fixed at one end of the smoke exhaust pipe 7, a ventilation groove 5 provided inside the smoke exhaust cover 4, a connecting interface 9 provided at one end of the smoke exhaust pipe 7, a support frame 3 symmetrically fixed at the bottom end of the smoke exhaust pipe 7, a reinforcing frame 2 fixed at the upper end of the support frame 3, and a positioning plate 10 fixed on one side of the bottom end of the support frame 3.

[0015] Specifically, a hinge 8 is fixed to the upper end of the smoke exhaust hood 4, and a cover plate 6 is fixedly installed on one side of the hinge 8.

[0016] By adopting the above technical solution, it is convenient to rotate the cover plate 6 to open and close the smoke exhaust hood 4, thereby improving the convenience of equipment control.

[0017] Specifically, mounting plates 1 are fixed on both sides of the exhaust duct 7, and the mounting plates 1 have several screw holes inside.

[0018] By adopting the above technical solutions, the stability of the smoke exhaust duct 7 positioning installation is ensured, its applicability is improved, and the installation quality is guaranteed.

[0019] Specifically, the positioning plate 10 has mounting holes inside, and the reinforcing frame 2, the support frame 3 and the positioning plate 10 are welded into an integrated structure.

[0020] By adopting the above technical solutions, the structural strength of the reinforcing frame 2, the support frame 3, and the positioning plate 10 is improved, ensuring the stability of the support.

[0021] Specifically, both the smoke exhaust hood 4 and the smoke exhaust duct 7 are assembled from four sets of cold-rolled plates welded together.

[0022] By adopting the above technical solution and using a modular design, it is convenient to control and adjust the specifications of the smoke exhaust hood 4 and the smoke exhaust duct 7, thereby improving the applicability of the equipment.

[0023] The working principle and usage process of this utility model are as follows: When using this utility model, four sets of cold-rolled plates are welded and assembled to produce the smoke exhaust hood 4 and the smoke exhaust pipe 7. Then, the smoke exhaust hood 4 and the smoke exhaust pipe 7 are welded and fixed. Next, the interface 9 at one end of the smoke exhaust pipe 7 is aligned with the axial flow fan outlet of the factory. Then, bolts are used to pass through the screw holes inside the mounting plate 1 to fix the smoke exhaust pipe 7, ensuring the stability of the installation of the smoke exhaust pipe 7. A reinforcing frame 2 and a support frame 3 can be welded to the bottom end of the smoke exhaust pipe 7 to support it, improve the stability of the smoke exhaust pipe 7, ensure the support strength, reduce the stress on the bolts, and improve the service life of the equipment. Then, bolts are used to fix the support frame 3 through the positioning plate 10 to ensure the effectiveness of the equipment. When welding the stiffener plate, the cover plate 6 is opened along the hinge 8 to prevent it from blocking the exhaust hood 4. The axial flow fan in the factory will discharge the fumes, toxic gases and carcinogens generated by electric welding from the factory, effectively reducing the risk of inhalation, preventing occupational asthma, pneumoconiosis and other diseases, avoiding short-term discomfort such as eye irritation, dizziness and nausea caused by the spread of fumes, improving the comfort of employees, and the rapid discharge of fumes can avoid obstructing the welding vision, reducing rework or defects, and improving welding accuracy.

[0024] 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 device for welding stiffeners, comprising a fume extraction pipe (7), characterized in that: One end of the exhaust pipe (7) is fixed with an exhaust hood (4), the exhaust hood (4) is provided with a ventilation groove (5), one end of the exhaust pipe (7) is provided with a connecting interface (9), the bottom end of the exhaust pipe (7) is symmetrically fixed with a support frame (3), the upper end of the support frame (3) is fixed with a reinforcing frame (2), and one side of the bottom end of the support frame (3) is fixed with a positioning plate (10).

2. The fume extraction device for welding stiffeners according to claim 1, characterized in that: The upper end of the smoke exhaust hood (4) is fixed with a hinge (8), and a cover plate (6) is fixedly installed on one side of the hinge (8).

3. The fume extraction device for welding stiffeners according to claim 1, characterized in that: The exhaust pipe (7) has mounting plates (1) fixed on both sides, and the mounting plates (1) have several screw holes inside.

4. The fume extraction device for welding stiffeners according to claim 1, characterized in that: The positioning plate (10) has mounting holes inside, and the reinforcing frame (2), the support frame (3) and the positioning plate (10) are welded into an integral structure.

5. The fume extraction device for welding stiffeners according to claim 1, characterized in that: Both the smoke exhaust hood (4) and the smoke exhaust pipe (7) are assembled by welding four sets of cold-rolled plates.

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