A pipe welding device

Abstract

The utility model relates to pipeline construction technical field discloses a pipeline welding device, including the welding torch body, one end fixedly connected with the connecting pipe of welding torch body, one end fixedly connected with the welding head of connecting pipe, the inside fixed mounting of welding head has the fan, the inside fixedly connected with the smoke inlet pipeline of welding head, the end portion of fan installation to the smoke inlet pipeline, the middle part of smoke inlet pipeline is equipped with the gap, the outside rotationally connected with the sealing ring of smoke inlet pipeline, the inner wall fixedly connected with sealing strip of sealing ring. The utility model has the advantages and effects that: the smoke is discharged outside the pipeline through the effect of wind direction, in this process, the contact time of the smoke and the staff can be greatly reduced, and the staff's work safety factor is improved when welding the pipeline in the pipeline.

Description

Technical Field

[0001] This utility model relates to the field of pipeline construction technology, and in particular to a pipeline welding device. Background Technology

[0002] A pipe welding device is a piece of equipment used for welding pipes. It mainly consists of a welding trolley and a track. During welding, the track is first fitted onto the pipe to be welded, so that the track and the pipe are arranged coaxially. Then, the welding trolley is installed on the track and driven to move around the circumference of the pipe to be welded, so as to realize the welding operation.

[0003] In the prior art, such as the pipe welding device disclosed in Chinese Patent Publication No. CN211840811U, which belongs to the field of welding technology, the pipe welding device includes a welding carriage, which comprises a carriage body, a wireless radio frequency reading module, a lifting mechanism, and a welding mechanism. Magnetic rollers are rotatably mounted on the bottom plate of the carriage body. The wireless radio frequency reading module is disposed inside the carriage body. The welding mechanism is mounted on the side of the carriage body via the lifting mechanism, which is configured to drive the welding mechanism to move in a direction perpendicular to the bottom plate of the carriage body. The pipe welding device also includes a wireless radio frequency tag module for being placed on the pipe to be welded. This disclosure can improve the efficiency of recording welding parameters and avoid omissions and errors in recording.

[0004] While the aforementioned patents can achieve the goal of avoiding omissions and errors in recording, when welding long pipes, the narrow internal space of the pipes makes it difficult for the fumes generated during the welding process to escape, which can harm the health of the welders. In addition, the welders need to hold a flashlight to achieve illumination during the welding process, which reduces welding efficiency. Therefore, the above problems need to be improved. Utility Model Content

[0005] The purpose of this invention is to provide a pipe welding device that can effectively discharge welding fumes.

[0006] The above-mentioned technical objective of this utility model is achieved through the following technical solution: a pipe welding device, including a welding torch body, a smoke inlet pipe fixedly connected to one end of the welding torch body, a welding head fixedly connected to one end of the smoke inlet pipe, a fan fixedly installed inside the welding head, the fan installed at the end of the smoke inlet pipe, a notch opened in the middle of the smoke inlet pipe, a sealing ring rotatably connected to the outside of the smoke inlet pipe, a sealing strip fixedly connected to the inner wall of the sealing ring, a first limiting protrusion fixedly connected to both sides of the inside of the sealing ring, a second limiting protrusion fixedly connected to both sides of the outer wall of the smoke inlet pipe, the first limiting protrusion and the second limiting protrusion meshing with each other, a threaded cylinder fixedly connected to the outside of the sealing ring, a smoke exhaust pipe threadedly connected to the inside of the threaded cylinder, and an exhaust hood fixedly connected to the end of the smoke exhaust pipe.

[0007] By adopting the above technical solution, the fan is connected to the end of the smoke inlet duct. During the welding process, the generated fumes enter the interior of the smoke inlet duct through the fan. The first and second limiting protrusions overlap and are rotated. The sealing ring rotates so that the first and second limiting protrusions rotate alternately. When the sealing ring is not subjected to external force, the first and second limiting protrusions are stationary, allowing the sealing ring to be fixed outside the smoke inlet duct. The operator adjusts the position of the threaded cylinder according to the wind direction inside the duct and connects the exhaust pipe to the inside of the sealing ring through the threaded cylinder. This allows the fumes inside the smoke inlet duct to enter the interior of the sealing ring, threaded cylinder, exhaust pipe, and exhaust hood through the notch. The fumes are then discharged to the outside of the duct by the wind direction. This process greatly reduces the contact time between the fumes and the operator, improving the safety factor for the operator when welding inside the duct.

[0008] A further feature of this invention is that a grille is snapped into the port of the exhaust hood, and a screw is threaded into the interior of the exhaust hood.

[0009] By adopting the above technical solution, the grille is snapped into the inside of the exhaust hood and fixed inside the exhaust hood by screws. The grille design can prevent impurities from entering the inside of the exhaust hood.

[0010] A further feature of this invention is that: both sides of the inner wall of the exhaust pipe are fixedly connected with a sandwich layer, an activated carbon mesh is snapped into the inner side of the sandwich layer, and activated carbon is disposed inside the activated carbon mesh.

[0011] By adopting the above technical solution, when the flue gas passes through the inside of the exhaust pipe, it enters the interior of the activated carbon mesh, where the activated carbon purifies and filters the flue gas.

[0012] A further feature of this invention is that a slide rail is fixedly connected to the center of the top of the welding torch body, and a slider is slidably connected inside the slide rail.

[0013] By adopting the above technical solution, the slider is slidably connected above the welding torch body via a slide rail.

[0014] A further feature of this invention is that a flashlight is fixedly mounted on the top of the slider.

[0015] By adopting the above technical solution, the flashlight moves inside the slide rail via a slider, illuminating the construction environment inside the pipeline, and the movement of the flashlight improves its flexibility of use.

[0016] A further feature of this invention is that locking rods are fixedly connected to both sides of the slider, and locking rings are threaded onto the outside of the locking rods.

[0017] By adopting the above technical solution, the locking ring is twisted, and the locking ring is displaced outside the locking rod. The locking ring contacts the outer wall of the slide rail, thereby locking the slider and achieving the effect of fixing the flashlight.

[0018] A further feature of this invention is that a lifting lug is fixedly connected to one side of the outer wall of the welding torch body, and a hanging hole is provided inside the lifting lug.

[0019] By adopting the above technical solution, the lifting lug is fixed at the corner of the outer wall of the welding torch body, thereby enabling the welding to be hoisted.

[0020] A further feature of this invention is that a fan bracket is fixedly installed inside the welding head, and the fan is fixedly installed inside the fan bracket.

[0021] By adopting the above technical solution, the fan is fixed inside the welded head by the fan bracket, which improves the stability of the fan during operation.

[0022] A further feature of this invention is that a heat-insulating inner liner is fixedly connected to the inner side of the exhaust pipe.

[0023] By adopting the above technical solution, the heat-insulating inner liner is used to insulate the inside of the exhaust pipe, preventing the exhaust pipe from being burned by heat conduction.

[0024] A further feature of this invention is that an anti-slip layer is fixedly connected to the outside of the welding torch body, and anti-slip textures are provided on the outer side of the anti-slip layer.

[0025] By adopting the above technical solution, when holding the welding torch body, the anti-slip layer and anti-slip texture increase the friction and prevent the welding torch body from slipping out of your hand.

[0026] The beneficial effects of this utility model are:

[0027] 1. This utility model, through the arrangement of the welding torch body, connecting pipe, welding head, fan, smoke inlet pipe, sealing ring, sealing strip, first limiting protrusion, second limiting protrusion, threaded cylinder, smoke exhaust pipe and exhaust hood, allows the smoke to enter the interior of the smoke inlet pipe through the fan. The first and second limiting protrusions overlap and are staggered. Rotating the sealing ring causes the first and second limiting protrusions to rotate alternately. When the sealing ring is not subjected to external force, the first and second limiting protrusions are in a stationary state, allowing the sealing ring to be fixed outside the smoke inlet pipe. The operator adjusts the position of the threaded cylinder according to the wind direction inside the pipe, and connects the smoke exhaust pipe to the interior of the sealing ring through the threaded cylinder. This allows the smoke inside the smoke inlet pipe to enter the interior of the sealing ring, threaded cylinder, smoke exhaust pipe and exhaust hood through the notch, and the smoke is discharged to the outside of the pipe by the wind direction. This greatly reduces the contact time between the smoke and the operator, improving the safety factor for the operator when welding inside the pipe.

[0028] 2. This utility model, through the arrangement of a slide rail, a slider, a flashlight, a locking rod, and a locking ring, allows the slider to slide above the welding torch body via the slide rail. The flashlight moves within the slide rail via the slider, illuminating the construction environment inside the pipeline. The movement of the flashlight also improves its flexibility. Twisting the locking ring causes it to move outside the locking rod, contacting the outer wall of the slide rail and locking the slider, thus securing the flashlight. Attached Figure Description

[0029] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0030] Figure 1 This is a schematic diagram of the structure of this utility model;

[0031] Figure 2 This is a schematic diagram of the internal structure of the welding head of this utility model;

[0032] Figure 3 This is a top view of the internal structure of the sealing ring of this utility model;

[0033] Figure 4 This is a top view of the sealing strip of this utility model.

[0034] Figure 5This is a front view schematic diagram of the internal structure of the slide rail of this utility model.

[0035] In the diagram, 1. Welding torch body; 2. Fan bracket; 3. Welding head; 4. Fan; 5. Smoke inlet pipe; 6. Sealing ring; 7. Sealing strip; 8. First limiting protrusion; 9. Second limiting protrusion; 10. Threaded cylinder; 11. Smoke exhaust pipe; 12. Exhaust hood; 13. Grille; 14. Screw pin; 15. Interlayer; 16. Activated carbon mesh; 17. Slide rail; 18. Slider; 19. Flashlight; 20. Locking rod; 21. Locking ring; 22. Lifting lug. Detailed Implementation

[0036] The technical solution of this utility model will now be clearly and completely described with reference to specific embodiments. Obviously, the described embodiments are only a part of the embodiments of this utility model, and not all of them. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without creative effort are within the scope of protection of this utility model.

[0037] A pipe welding apparatus includes the following specific embodiments:

[0038] Example 1:

[0039] Reference Figure 1-4 One end of the welding torch body 1 is fixedly connected to a smoke inlet pipe 5, and one end of the smoke inlet pipe 5 is fixedly connected to a welding head 3. A fan 4 is fixedly installed inside the welding head 3. The fan 4 is installed at the end of the smoke inlet pipe 5. A notch is opened in the middle of the smoke inlet pipe 5. A sealing ring 6 is rotatably connected to the outside of the smoke inlet pipe 5. A sealing strip 7 is fixedly connected to the inner wall of the sealing ring 6. A first limiting protrusion 8 is fixedly connected to both sides inside the sealing ring 6. A second limiting protrusion 9 is fixedly connected to both sides of the outer wall of the smoke inlet pipe 5. The first limiting protrusion 8 and the second limiting protrusion 9 mesh with each other. A threaded cylinder 10 is fixedly connected to the outside of the sealing ring 6. A smoke exhaust pipe 11 is threadedly connected to the inside of the threaded cylinder 10. An exhaust hood 12 is fixedly connected to the end of the smoke exhaust pipe 11.

[0040] Furthermore, a grille 13 is snapped into the port of the exhaust hood 12, a screw pin 14 is threaded into the inside of the exhaust hood 12, and a sandwich 15 is fixedly connected to both sides of the inner wall of the exhaust pipe 11. An activated carbon mesh 16 is snapped into the inner side of the sandwich 15, and activated carbon is provided inside the activated carbon mesh 16.

[0041] Specifically, the fan 4 is connected to the end of the smoke inlet duct 5. During the welding process of the welding head 3, the generated fumes enter the interior of the smoke inlet duct 5 through the fan 4. The first limiting protrusion 8 and the second limiting protrusion 9 overlap and stagger. Rotating the sealing ring 6 causes the first limiting protrusion 8 and the second limiting protrusion 9 to rotate alternately. When the sealing ring 6 is not subjected to external force, the first limiting protrusion 8 and the second limiting protrusion 9 are in a stationary state, so that the sealing ring 6 can be fixed on the outside of the smoke inlet duct 5. The operator adjusts the position of the threaded cylinder 10 according to the wind direction inside the duct, and connects the exhaust pipe 11 to the inside of the sealing ring 6 through the threaded cylinder 10, so that the inside of the smoke inlet duct 5... The flue gas enters the sealing ring 6, threaded cylinder 10, exhaust pipe 11 and exhaust hood 12 through the notch. The flue gas is discharged to the outside of the pipe by the wind direction. In this process, the contact time between the flue gas and the workers can be greatly reduced. When the workers are welding inside the pipe, the safety factor of the workers is improved. The grille 13 is snapped into the inside of the exhaust hood 12 and fixed inside the exhaust hood 12 by the screw pin 14. The grille 13 can prevent impurities from entering the inside of the exhaust hood 12. When the flue gas passes through the inside of the exhaust pipe 11, the flue gas enters the inside of the activated carbon mesh 16, where the activated carbon purifies and filters the flue gas.

[0042] Example 2:

[0043] Reference Figure 1 and Figure 5 A slide rail 17 is fixedly connected to the center of the top of the welding torch body 1. A slider 18 is slidably connected inside the slide rail 17. A flashlight 19 is fixedly installed on the top of the slider 18. Locking rods 20 are fixedly connected to both sides of the outside of the slider 18. Locking rings 21 are threadedly connected to the outside of the locking rods 20.

[0044] Specifically, the slider 18 is slidably connected to the upper part of the welding torch body 1 via the slide rail 17. The flashlight 19 moves inside the slide rail 17 via the slider 18, illuminating the construction environment inside the pipe. The movement of the flashlight 19 also improves the flexibility of use. Twisting the locking ring 21 causes it to move outside the locking rod 20. The locking ring 21 then contacts the outer wall of the slide rail 17, thereby locking the slider 18 and fixing the flashlight 19.

[0045] Example 3:

[0046] Reference Figure 1-2A lifting lug 22 is fixedly connected to one side of the outer wall of the welding torch body 1. The lifting lug 22 has a hanging hole inside. A fan bracket 2 is fixedly installed inside the welding head 3. A fan 4 is fixedly installed inside the fan bracket 2. A heat insulation inner liner is fixedly connected to the inner side of the exhaust pipe 11. An anti-slip layer is fixedly connected to the outer side of the welding torch body 1. Anti-slip texture is provided on the outer side of the anti-slip layer.

[0047] Specifically, the lifting lug 22 is fixed at the corner of the outer wall of the welding torch body 1, so that the welding can be hoisted. The fan 4 is fixed inside the welding head 3 through the fan bracket 2, which improves the stability of the fan 4 during operation. The heat insulation liner is used to insulate the inside of the exhaust pipe 11 to prevent the exhaust pipe 11 from being burned by heat conduction. When holding the welding torch body 1, the anti-slip layer and anti-slip texture increase the friction and prevent the welding torch body 1 from slipping out of the hand.

[0048] In this invention, the fan 4 is connected to the end of the smoke inlet pipe 5. During the welding process, the fumes generated by the welding head 3 enter the interior of the smoke inlet pipe 5 through the fan 4. The first limiting protrusion 8 and the second limiting protrusion 9 overlap and are staggered. The sealing ring 6 is rotated, causing the first limiting protrusion 8 and the second limiting protrusion 9 to rotate alternately. When the sealing ring 6 is not subjected to external force, the first limiting protrusion 8 and the second limiting protrusion 9 are in a stationary state, allowing the sealing ring 6 to be fixed outside the smoke inlet pipe 5. The operator adjusts the position of the threaded cylinder 10 according to the wind direction inside the pipe and connects the exhaust pipe 11 to the interior of the sealing ring 6 through the threaded cylinder 10. This allows the fumes inside the smoke inlet pipe 5 to enter the interior of the sealing ring 6, the threaded cylinder 10, the exhaust pipe 11, and the exhaust hood 12 through the notch. The fumes are then discharged to the outside of the pipe by the wind direction. This process greatly reduces the contact time between the fumes and the operator, improving the safety factor for the operator when welding inside the pipe.

[0049] 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 pipe welding apparatus, comprising a welding torch body (1), characterized in that: One end of the welding torch body (1) is fixedly connected to a smoke inlet pipe (5), and one end of the smoke inlet pipe (5) is fixedly connected to a welding head (3). A fan (4) is fixedly installed inside the welding head (3). The fan (4) is installed at the end of the smoke inlet pipe (5). A notch is opened in the middle of the smoke inlet pipe (5). A sealing ring (6) is rotatably connected to the outside of the smoke inlet pipe (5). A sealing strip (7) is fixedly connected to the inner wall of the sealing ring (6). A first limiting protrusion (8) is fixedly connected to both sides inside the sealing ring (6). A second limiting protrusion (9) is fixedly connected to both sides of the outer wall of the smoke inlet pipe (5). The first limiting protrusion (8) and the second limiting protrusion (9) mesh with each other. A threaded cylinder (10) is fixedly connected to the outside of the sealing ring (6). A smoke exhaust pipe (11) is threadedly connected inside the threaded cylinder (10). An exhaust hood (12) is fixedly connected to the end of the smoke exhaust pipe (11).

2. The pipe welding apparatus according to claim 1, characterized in that: A grille (13) is snapped into the port of the exhaust hood (12), and a screw pin (14) is threaded into the interior of the exhaust hood (12).

3. The pipe welding apparatus according to claim 1, characterized in that: Both sides of the inner wall of the exhaust pipe (11) are fixedly connected with a jacket (15), and an activated carbon mesh (16) is snapped into the inner side of the jacket (15), and activated carbon is provided inside the activated carbon mesh (16).

4. The pipe welding apparatus according to claim 1, characterized in that: A slide rail (17) is fixedly connected to the center of the top of the welding torch body (1), and a slider (18) is slidably connected inside the slide rail (17).

5. A pipe welding apparatus according to claim 4, characterized in that: A flashlight (19) is fixedly installed on the top of the slider (18).

6. A pipe welding apparatus according to claim 4, characterized in that: Locking rods (20) are fixedly connected to both sides of the slider (18), and locking rings (21) are threadedly connected to the outside of the locking rods (20).

7. A pipe welding apparatus according to claim 1, characterized in that: A lifting lug (22) is fixedly connected to one side of the outer wall of the welding torch body (1), and a hanging hole is provided inside the lifting lug (22).

8. A pipe welding apparatus according to claim 1, characterized in that: The fan bracket (2) is fixedly installed inside the welding head (3), and the fan (4) is fixedly installed inside the fan bracket (2).

9. A pipe welding apparatus according to claim 1, characterized in that: The inner side of the exhaust pipe (11) is fixedly connected to an insulated inner liner.

10. A pipe welding apparatus according to claim 5, characterized in that: The welding torch body (1) is fixedly connected to an anti-slip layer, and the anti-slip layer has anti-slip texture on its outer side.

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