A gas protection device for welding stainless steel water pipes

Abstract

The utility model discloses a stainless steel water pipe weld seam gas protection device, the utility model discloses a welding torch, wind screen, jet component, lengthens cover and adjusting lever, the wind screen screw connection is established in the outside of welding torch, the first transparent plate is fixedly arranged on the wind screen, the right side of wind screen is opened to have the ventilation hole, jet component fixedly set up on the wind screen, the lengthens cover is inserted in the outside of wind screen, the second transparent plate is fixedly arranged on the lengthens cover, the left side of lengthens cover is provided with the gap, the adjusting lever is rotatoryly connected with the top of wind screen through the bearing, and the adjusting lever is with the top of lengthens cover screw connection. The utility model discloses a wind screen, lengthens cover and adjusting lever can be windproof when welding, avoid because of the strong wind and scatter the protective gas, and the use range is big, and through setting up jet component simultaneously, has realized the effect that jet is even, and the range is big, to protect the weld.

Description

Technical Field

[0001] This utility model relates to the field of gas protection technology for stainless steel water pipe welds, specifically a gas protection device for stainless steel water pipe welds. Background Technology

[0002] The core function of the gas protection device for stainless steel water pipe welds is to form a protective layer in the welding area using inert or neutral gases (such as argon, nitrogen, or mixed gases) to isolate harmful gases such as oxygen and nitrogen in the air, preventing the weld metal from being oxidized, nitrided, or producing porosity at high temperatures, thereby ensuring the mechanical properties, corrosion resistance, and appearance quality of the weld. A search revealed that patent CN114289841A discloses a gas protection device for the external weld seam of stainless steel water pipes. The patent describes a device that "...has a gas guide tube frame at the top of the welding torch, with a gas guide tube control valve and switch fixed inside the frame; a welding torch switch is fixed on the torch handle; and push plates are fixed to the left ends of the welding torch switch and the gas guide tube control valve switch, respectively. The push plates are fixedly connected by a connecting rod...". As can be seen from the above, this patent delivers gas to the nozzle via a gas guide tube, requiring operation in windless or low-wind conditions. In strong winds, the delivered gas is quickly dispersed, preventing it from protecting the weld seam, thus presenting certain shortcomings. Therefore, we propose a gas protection device for the weld seam of stainless steel water pipes. Utility Model Content

[0003] The present invention aims to solve the problems existing in the prior art or related technologies.

[0004] Therefore, the technical solution adopted by this utility model is as follows: a gas protection device for stainless steel water pipe welds, including a welding torch, a wind shield, a jet assembly, an extension cover, and an adjusting rod. The wind shield is screwed to the outside of the welding torch. A first transparent plate is fixedly installed on the wind shield. A ventilation hole is provided on the right side of the wind shield. The jet assembly is fixedly installed on the wind shield. The extension cover is inserted through the outside of the wind shield. A second transparent plate is fixedly installed on the extension cover. A notch is provided on the left side of the extension cover. The adjusting rod is rotatably connected to the top of the wind shield through a bearing, and the adjusting rod is threadedly connected to the top of the extension cover.

[0005] Preferably, a limiting block is fixedly provided on the outer side of the welding torch, and two threaded grooves are provided on the welding torch for installing a windshield.

[0006] Preferably, the windshield has an insertion hole and a mounting hole on its right side, and both mounting holes are round holes.

[0007] Preferably, the jet assembly includes a first annular tube fixedly disposed on the windshield, a plurality of horizontal tubes fixedly disposed on the left side of the first annular tube, a second annular tube fixedly disposed on the left side of the horizontal tubes, and a plurality of air nozzles fixedly disposed on the left side of the second annular tube.

[0008] Preferably, a connecting pipe is fixedly provided on the right side of the first ring pipe, and the connecting pipe is fixedly connected to the gas source.

[0009] Preferably, the extended cover has the same curvature on the left side as the windshield.

[0010] Preferably, the adjusting rod is T-shaped, and the outer side of the adjusting rod is provided with external threads.

[0011] By adopting the above technical solution, the beneficial effects achieved by this utility model are as follows: The adjustable rod of this utility model can be rotated, thereby pushing the extended cover to adjust the windproof range. After adjustment, the edge of the extended cover can be tightly attached to the outside of the stainless steel water pipe, forming a certain sealed space with the windproof cover to block the outside wind and prevent strong winds from quickly dispersing the protective gas. At the same time, the protective gas is not easily lost, greatly reducing the amount of protective gas transported, resulting in low cost. The first and second transparent plates facilitate welding by the user, and the ventilation holes and notches allow for rapid air discharge. The air jet assembly has several nozzles, which are circumferentially distributed to ensure uniform air jetting and a large protection range. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the structure of this utility model;

[0013] Figure 2 This utility model Figure 1 Schematic diagram of the welding torch;

[0014] Figure 3 This utility model Figure 1 A structural schematic diagram of the center windshield, jet assembly, and adjusting rod;

[0015] Figure 4 This utility model Figure 1 A schematic diagram of the extended cover structure.

[0016] Figure label:

[0017] 100. Welding torch; 101. Limiting block; 102. Threaded groove;

[0018] 200. Windshield; 201. First transparent panel; 202. Ventilation hole; 203. Insertion hole; 204. Mounting hole;

[0019] 300. Jet assembly; 301. First annular pipe; 302. Connecting pipe; 303. Horizontal pipe; 304. Second annular pipe; 305. Air nozzle;

[0020] 400. Extended cover; 401. Second transparent panel; 402. Notch;

[0021] 500. Adjusting rod. Detailed Implementation

[0022] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to specific embodiments and accompanying drawings. It should be noted that, unless otherwise specified, the embodiments and features of the present utility model can be combined with each other.

[0023] The following describes some embodiments of the present invention with reference to the accompanying drawings, providing a gas protection device for stainless steel water pipe welds.

[0024] Example 1:

[0025] Reference Figure 1-4 This is the first embodiment of the present invention, which provides a gas protection device for stainless steel water pipe welds, including a welding torch 100, a windshield 200, a jet assembly 300, an extension cover 400, and an adjusting rod 500.

[0026] Specifically, a limiting block 101 is fixedly provided on the outer side of the welding torch 100, and two threaded grooves 102 are provided on the welding torch 100 for installing the wind shield 200. In use, the limiting block 101 allows the wind shield 200 to be accurately inserted into the welding torch 100 for installation, and the two threaded grooves 102 facilitate the fixing of the wind shield 200 to the welding torch 100 with screws.

[0027] Specifically, the wind shield 200 is screwed to the outside of the welding torch 100. A first transparent plate 201 is fixedly installed on the wind shield 200. A ventilation hole 202 is opened on the right side of the wind shield 200. An insertion hole 203 and a mounting hole 204 are also opened on the right side of the wind shield 200. Both mounting holes 204 are round holes. During use, the wind shield 200 can block strong winds and prevent them from quickly dispersing the protective gas. The first transparent plate 201 facilitates welding for the user. The ventilation hole 202 facilitates the discharge of air or protective gas. The insertion hole 203 allows the wind shield 200 to be inserted into the welding torch 100. The two mounting holes 204 allow screws to pass through the wind shield 200 for installation.

[0028] Specifically, the jet assembly 300 is fixedly mounted on the windshield 200. The jet assembly 300 includes a first annular pipe 301 fixedly mounted on the windshield 200, several horizontal pipes 303 fixedly mounted on the left side of the first annular pipe 301, a second annular pipe 304 fixedly mounted on the left side of the horizontal pipes 303, and several air nozzles 305 fixedly mounted on the left side of the second annular pipe 304. A connecting pipe 302 is fixedly mounted on the right side of the first annular pipe 301 and is fixedly connected to the air source. In use, the protective gas can be delivered to the first annular pipe 301 through the connecting pipe 302, and then delivered to the several air nozzles 305 through the horizontal pipes 303 and the second annular pipe 304 and sprayed out evenly. The sprayed protective gas can protect the weld.

[0029] Specifically, the extended cover 400 is inserted outside the windshield 200. A second transparent plate 401 is fixedly installed on the extended cover 400. A notch 402 is provided on the left side of the extended cover 400. The curvature of the left side of the extended cover 400 is the same as that of the windshield 200. In use, the extended cover 400 can block strong winds and prevent them from quickly dispersing the protective gas. The second transparent plate 401 facilitates welding for the user, and the notch 402 facilitates the discharge of air or protective gas.

[0030] Specifically, the adjusting rod 500 is rotatably connected to the top of the windshield 200 via a bearing, and the adjusting rod 500 is threadedly connected to the top of the extension cover 400. The adjusting rod 500 is T-shaped, and the outer side of the adjusting rod 500 is provided with an external thread. In use, the extension cover 400 can be pushed by rotating the adjusting rod 500, so the windshield range can be adjusted according to actual needs, which is highly flexible and has a wide range of applications.

[0031] The working principle and usage process of this utility model are as follows: When in use, first rotate the adjusting rod 500. The rotating adjusting rod 500 can push the extended cover 400 to move until it is in a suitable position. Then, the curved edge of the extended cover 400 is pressed tightly against the weld of the stainless steel water pipe. After being pressed tightly, the extended cover 400 and the windproof cover 200 can block the strong wind. Then, the gas source is controlled to deliver protective gas. The protective gas will be delivered to the air nozzle 305 through the connecting pipe 302, the first ring pipe 301, the horizontal pipe 303 and the second ring pipe 304 and sprayed out. The sprayed protective gas will squeeze out the air in the windproof cover 200 and the extended cover 400, thus protecting the weld.

[0032] Although embodiments of the present invention have been shown and described, those skilled in the art will understand 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 claims and their equivalents.

Claims

1. A gas protection device for stainless steel water pipe welds, characterized in that, include: Welding torch (100); A wind shield (200) is screwed to the outside of the welding torch (100). A first transparent plate (201) is fixedly installed on the wind shield (200). A ventilation hole (202) is opened on the right side of the wind shield (200). The jet assembly (300) is fixedly mounted on the windshield (200); An extended cover (400) is inserted outside the windshield (200), and a second transparent plate (401) is fixedly installed on the extended cover (400). A notch (402) is provided on the left side of the extended cover (400). The adjusting rod (500) is rotatably connected to the top of the windshield (200) via a bearing, and the adjusting rod (500) is threadedly connected to the top of the extension cover (400).

2. The gas protection device for stainless steel water pipe welds according to claim 1, characterized in that, A limiting block (101) is fixedly provided on the outside of the welding torch (100), and two threaded grooves (102) are provided on the welding torch (100) for installing the windshield (200).

3. The gas protection device for stainless steel water pipe welds according to claim 1, characterized in that, The windshield (200) has an insertion hole (203) and a mounting hole (204) on its right side, and both mounting holes (204) are round holes.

4. The gas protection device for stainless steel water pipe welds according to claim 1, characterized in that, The jet assembly (300) includes a first ring pipe (301) fixedly disposed on the windshield (200), a plurality of horizontal pipes (303) fixedly disposed on the left side of the first ring pipe (301), a second ring pipe (304) fixedly disposed on the left side of the horizontal pipes (303), and a plurality of air nozzles (305) fixedly disposed on the left side of the second ring pipe (304).

5. A gas protection device for stainless steel water pipe welds according to claim 4, characterized in that, A connecting pipe (302) is fixedly installed on the right side of the first ring pipe (301), and the connecting pipe (302) is fixedly connected to the gas source.

6. A gas protection device for stainless steel water pipe welds according to claim 1, characterized in that, The extended cover (400) has the same curvature on the left side as the windshield (200).

7. A gas protection device for stainless steel water pipe welds according to claim 1, characterized in that, The adjusting rod (500) is T-shaped, and the outer side of the adjusting rod (500) is provided with external threads.

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