Stainless steel pipe welding protection cover with argon recycling function

Abstract

The utility model relates to welding device technical field discloses a kind of stainless steel pipeline welding protection cover with argon recovery function, including protection shell, recovery mechanism is arranged in the inside of protection shell, the bottom of protection shell is provided with compacting mechanism, and fixed sleeve is fixedly connected in the inside of protection shell;The recovery mechanism includes filter bin and inner cavity being arranged in the inside of protection shell, the inside of protection shell is fixedly connected with air inlet pipe, the inside of protection shell is fixedly connected with exhaust pipe, the filter bin plug-in connection is in the outside of exhaust pipe, the filter bin is fixedly connected with filter screen in the inside, and the filter bin is fixedly connected with plug-in connector in the inside.The utility model is in, by setting inner cavity, exhaust pipe and filter bin in the inside of protection shell, and they are interconnected, form argon recovery passage, realize the recycling of argon, to significantly reduce argon consumption, save production cost.

Description

Technical Field

[0001] This application relates to the field of welding equipment technology, and in particular to a stainless steel pipe welding protective cover with argon gas recovery function. Background Technology

[0002] Currently, stainless steel pipe welding technology is widely used in fields with stringent requirements for pipe connection quality, such as chemical, food, pharmaceutical, and aerospace industries. During the welding process, to prevent oxidation of the weld and heat-affected zone at high temperatures, it is usually necessary to fill the welding area with an inert gas (such as argon) for protection, ensuring the mechanical properties and corrosion resistance of the weld. An argon gas shield, as a key auxiliary device, covers the outside of the pipe weld or fills the inside of the pipe during welding, creating a sealed local space and continuously supplying argon gas into this space, isolating it from air and providing an excellent inert gas protective environment for welding.

[0003] Regarding the aforementioned technologies, the design primarily focuses on achieving effective gas protection, while insufficient consideration is given to gas utilization efficiency. In actual welding operations, to ensure the weld area is completely covered by inert gas, the argon supply often exceeds the theoretical consumption. The excess argon, after protection is complete, escapes directly into the atmosphere through gaps in the protective shield or exhaust vents. This not only results in a significant waste of argon resources but also substantially increases the production cost of welding operations. Summary of the Invention

[0004] The purpose of this application is to provide a stainless steel pipe welding protective cover with argon recovery function, which aims to improve the problem in the prior art where argon gas will directly escape into the atmosphere from the gaps or exhaust ports of the protective cover after the protection is completed, causing resource waste.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: A stainless steel pipe welding protective cover with argon gas recovery function includes a protective shell, a recovery mechanism is provided inside the protective shell, a pressing mechanism is provided at the bottom of the protective shell, and a fixing sleeve is fixedly connected inside the protective shell. The recycling mechanism includes a filter chamber and an inner cavity inside a protective shell. An air inlet pipe is fixedly connected inside the protective shell, and an exhaust pipe is fixedly connected inside the protective shell. The filter chamber is pluggably connected to the outside of the exhaust pipe, and a filter screen is fixedly connected inside the filter chamber. A connector is fixedly connected inside the filter chamber.

[0006] The above technical solution allows for the centralized recovery and filtration of argon gas used during welding through the establishment of a recovery mechanism, thereby achieving the purification and secondary utilization of argon gas, effectively saving argon gas usage costs and reducing resource waste.

[0007] As a further description of the above technical solution: The inner cavity, fixed sleeve, air inlet pipe, air outlet pipe, filter chamber, and connector are connected.

[0008] The above technical solution creates a complete and sealed flow channel for the recovered argon gas through the interconnection between the various components.

[0009] As a further description of the above technical solution: The clamping mechanism includes an arc-shaped plate and a screw. A side plate is fixedly connected to the side wall of the protective shell. The arc-shaped plate is fixedly connected to the bottom of the side plate. The screw is threadedly connected to the inside of the arc-shaped plate. A pressing block is fixedly connected to the upper end of the screw.

[0010] The above technical solution utilizes the screw's movement within the arc-shaped plate to move the extrusion block, allowing the entire protective cover to be securely fixed to the stainless steel pipe quickly and easily.

[0011] As a further description of the above technical solution: The extrusion block is rotatably connected to a shaft, and a pulley is fixedly connected to the side wall of the shaft.

[0012] The above technical solution allows the pulley to roll smoothly on the outer wall of the pipe when the equipment needs to be rotated during the welding process, thus reducing rotational friction.

[0013] As a further description of the above technical solution: A rotating block is fixedly connected to the lower end of the screw, and an anti-slip strip is fixedly connected to the outer wall of the rotating block.

[0014] The above technical solution provides operators with an easy-to-grip and force-apply operating point. The anti-slip strip increases the friction between the hand and the rotating block, making it less likely for the rotating screw to slip when adjusting the tension.

[0015] As a further description of the above technical solution: The protective shell has an installation groove inside, and a rubber pad is provided at the bottom of the protective shell.

[0016] Through the above technical solution, the rubber pad can act as a buffer when the protective cover comes into contact with the pipe, protecting the outer surface of the pipe from being scratched by the hard protective shell. At the same time, the rubber pad itself has a certain degree of elasticity, which can initially fill the gaps between the contact surfaces and play a sealing role.

[0017] As a further description of the above technical solution: A silicone strip is fixedly connected to the top of the rubber pad, and the silicone strip can be deformed by compression and embedded inside the mounting groove.

[0018] With the above technical solution, when the rubber gasket wears down and the sealing ability decreases, the silicone strip can be removed from the mounting groove by pulling the rubber gasket so that the rubber gasket can be replaced.

[0019] In summary, this application includes at least one of the following beneficial technical effects: 1. In this utility model, by setting an inner cavity, an exhaust pipe and a filter chamber inside the protective shell and connecting them to each other, an argon gas recovery path is formed. The protective gas overflowing during welding is guided to the exhaust pipe and enters the filter chamber. Then, the filter screen filters out impurities such as metal spatter and fumes generated during welding, and the overflowing argon gas is initially purified. The purified gas can be connected to an external recovery device through a connector to realize the recycling of argon gas, thereby significantly reducing argon gas consumption and saving production costs.

[0020] 2. In this utility model, by rotating the rotating block at the lower end of the screw, the extrusion block applies pressure to the stainless steel pipe, thereby stably fixing the protective cover to the pipe. At the same time, the pulleys set on the extrusion block can roll freely when in contact with the pipe, avoiding scratching the pipe surface due to sliding friction during the pressing process, thus protecting the integrity of the workpiece. Through extrusion, the rubber pad is tightly attached to the pipe surface, forming a sealed space, which effectively prevents outside air from entering. Attached Figure Description

[0021] Figure 1 This is a three-dimensional schematic diagram of a stainless steel pipe welding protective cover with argon recovery function according to an embodiment of this application; Figure 2 This is a schematic diagram of the recovery mechanism of a stainless steel pipe welding protective cover with argon recovery function according to an embodiment of this application; Figure 3 This is a schematic diagram of the clamping mechanism of a stainless steel pipe welding protective cover with argon gas recovery function according to an embodiment of this application; Explanation of reference numerals in the attached drawings: 1. Protective shell; 2. Inner cavity; 3. Fixing sleeve; 4. Air inlet pipe; 5. Exhaust pipe; 6. Filter chamber; 7. Connector; 8. Filter screen; 9. Mounting groove; 10. Rubber pad; 11. Silicone strip; 12. Side plate; 13. Arc plate; 14. Screw; 15. Rotating block; 16. Extrusion block; 17. Rotating shaft; 18. Pulley. Detailed Implementation

[0022] The following is in conjunction with the appendix Figure 1 - Appendix Figure 3 This application will be described in further detail below.

[0023] Example 1: A stainless steel pipe welding protective cover with argon recovery function, referring to... Figures 1-2The system includes a protective shell 1, made of a high-temperature resistant and corrosion-resistant transparent material. This not only ensures structural stability in harsh welding environments, but its transparency also allows operators to observe the molten pool and weld formation process in real time and clearly, greatly improving welding precision and quality control. The protective shell 1 contains a recovery mechanism to collect any unused protective argon gas that overflows from the welding area, significantly reducing production costs and achieving resource recycling. A clamping mechanism at the bottom of the protective shell 1 applies uniform pressure to ensure a tight seal against the stainless steel pipe surface, forming a reliable sealed space and effectively preventing external air intrusion that could cause oxidation contamination of the weld. A fixing sleeve 3 is fixedly connected inside the protective shell 1 to hold the welding pen. The recovery mechanism... The system includes a filter chamber 6 and an inner cavity 2 located inside the protective shell 1. An air inlet pipe 4 is fixedly connected inside the protective shell 1. The air inlet pipe 4 can be connected to an external hose to deliver argon gas to the vicinity of the welding pool to provide welding protection. An exhaust pipe 5 is fixedly connected inside the protective shell 1. The exhaust pipe 5 is used to exhaust the hot argon gas mixed with a small amount of impurities in the protected area, providing a pathway for subsequent purification and recovery. The filter chamber 6 is plugged into the outside of the exhaust pipe 5 for easy daily inspection and replacement, improving the maintainability of the equipment. A filter screen 8 is fixedly connected inside the filter chamber 6, which can efficiently intercept metal spatter particles and fumes generated during the welding process. A connector 7 is fixedly connected inside the filter chamber 6 for connecting to an external argon gas recovery device. The inner cavity 2, the fixed sleeve 3, the air inlet pipe 4, the exhaust pipe 5, the filter chamber 6, and the connector 7 are interconnected.

[0024] The implementation principle of this application embodiment is as follows: The equipment is placed outside the pipeline, and the protective shell 1 is moved to the welding point so that the fixing sleeve 3 is at the top of the weld. The welding pen is then inserted into the fixing sleeve 3. The argon gas supply pipe is then connected to the inlet pipe 4, and the argon gas recovery pipe is connected to the connector 7. Argon gas is supplied into the inner cavity 2 to fill it, and welding can then be performed. The argon gas remaining in the inner cavity 2 will be discharged through the argon gas recovery pipe and collected for reuse. Before entering the argon gas recovery pipe, the argon gas will first pass through the filter chamber 6. At this time, the filter screen 8 in the filter chamber 6 will block and filter the dust and impurities carried in the argon gas to ensure that the recovered argon gas is free of impurities. After the work is completed, the filter chamber 6 can be removed from the exhaust pipe 5 to clean the dust and impurities blocked inside, so as to avoid the filter screen 8 from being blocked and affecting subsequent use.

[0025] Example 2: A stainless steel pipe welding protective cover with argon recovery function, referring to... Figure 3The clamping mechanism includes an arc-shaped plate 13 and a screw 14. A side plate 12 is fixedly connected to the side wall of the protective shell 1. The arc-shaped plate 13 is fixedly connected to the bottom of the side plate 12. The screw 14 is threaded inside the arc-shaped plate 13. A pressing block 16 is fixedly connected to the upper end of the screw 14. A rotating shaft 17 is rotatably connected inside the pressing block 16. A pulley 18 is fixedly connected to the side wall of the rotating shaft 17. The pulley can roll freely when in contact with the object being pressed, effectively reducing sliding friction and preventing scratch damage to the surface of the object. A rotating block 15 is fixedly connected to the lower end of the screw 14. An anti-slip strip is fixedly connected to the outer wall of the rotating block 15, which facilitates the twisting of the screw 14 by the operator. An installation groove 9 is provided inside the protective shell 1. A rubber pad 10 is provided at the bottom of the protective shell 1. A silicone strip 11 is fixedly connected to the top of the rubber pad 10. The silicone strip 11 can be deformed by compression and embedded in the installation groove 9, which facilitates the replacement of the rubber pad 10.

[0026] The implementation principle of this application embodiment is as follows: By twisting the rotating block 15, the screw 14 moves downward, causing the bottom of the extrusion block 16 to be tightly attached to the arc plate 13. Then, the equipment is placed on the outside of the pipe, and the protective shell 1 is moved to the welding point, so that the fixing sleeve 3 is at the top of the weld. Then, by twisting the rotating block 15 in the opposite direction, the screw 14 drives the extrusion block 16 to move upward, so that the pulley 18 is tightly attached to the outside of the pipe. At this time, the rubber pad 10 will be squeezed and deformed, so that the inner cavity 2 opened inside the protective shell 1 forms a sealed space.

[0027] The embodiments described in this specific implementation are preferred embodiments of this application and are not intended to limit the scope of protection of this application. Identical components are represented by the same reference numerals. Therefore, all equivalent changes made to the structure, shape, and principle of this application should be covered within the scope of protection of this application.

Claims

1. A stainless steel pipe welding protective cover with argon recovery function, comprising a protective shell (1), characterized in that: The protective shell (1) is provided with a recycling mechanism inside, the bottom of the protective shell (1) is provided with a pressing mechanism, and a fixing sleeve (3) is fixedly connected inside the protective shell (1). The recycling mechanism includes a filter chamber (6) and an inner cavity (2) opened inside the protective shell (1). An air inlet pipe (4) is fixedly connected inside the protective shell (1), and an exhaust pipe (5) is fixedly connected inside the protective shell (1). The filter chamber (6) is plugged into and detached from the exhaust pipe (5). A filter screen (8) is fixedly connected inside the filter chamber (6), and a connector (7) is fixedly connected inside the filter chamber (6).

2. The stainless steel pipe welding protective cover with argon recovery function according to claim 1, characterized in that: The inner cavity (2), the fixing sleeve (3), the air inlet pipe (4), the exhaust pipe (5), the filter chamber (6), and the connector (7) are connected.

3. The stainless steel pipe welding protective cover with argon recovery function according to claim 1, characterized in that: The pressing mechanism includes an arc plate (13) and a screw (14). A side plate (12) is fixedly connected to the side wall of the protective shell (1). The arc plate (13) is fixedly connected to the bottom of the side plate (12). The screw (14) is threaded inside the arc plate (13). An extrusion block (16) is fixedly connected to the upper end of the screw (14).

4. A stainless steel pipe welding protective cover with argon recovery function according to claim 3, characterized in that: The extrusion block (16) is rotatably connected to a rotating shaft (17), and a pulley (18) is fixedly connected to the side wall of the rotating shaft (17).

5. A stainless steel pipe welding protective cover with argon recovery function according to claim 3, characterized in that: The lower end of the screw (14) is fixedly connected to a rotating block (15), and the outer wall of the rotating block (15) is fixedly connected to an anti-slip strip.

6. A stainless steel pipe welding protective cover with argon recovery function according to claim 1, characterized in that: The protective shell (1) has an installation groove (9) inside, and a rubber pad (10) is provided at the bottom of the protective shell (1).

7. A stainless steel pipe welding protective cover with argon recovery function according to claim 6, characterized in that: A silicone strip (11) is fixedly connected to the top of the rubber pad (10). The silicone strip (11) can be deformed by compression and embedded in the mounting groove (9).

Images