A portable arc welding gun with adjustable welding angle

Abstract

This utility model relates to the field of arc welding gun technology, and in particular to a portable arc welding gun with adjustable welding angle. It includes a housing, with a hollow connecting rod mounted at one end of the housing. A universal ball joint is connected to one end of the hollow connecting rod. The universal ball joint has a universal ball head inside, and one end of the universal ball head is connected to an electrode head via a conductive rod. A conductive sleeve is installed on the inner wall of the universal ball joint, and the inner wall of the conductive sleeve contacts the outer surface of the universal ball head. A locking screw is fitted at one end of the universal ball joint, and the locking screw is threaded to the outer surface of the universal ball joint. An opening groove is formed at one end of the universal ball joint. This application allows the electrode head to rotate along the universal ball joint and the universal ball head through their cooperation, and then fixes it with the locking screw. This allows for adjustment of the electrode head's tilt angle according to the welding angle, improving the performance.

Description

Technical Field

[0001] This utility model relates to the field of arc welding gun technology, and in particular to a portable arc welding gun with adjustable welding angle. Background Technology

[0002] A portable arc welding gun is a lightweight, portable arc welding tool that is typically used in conjunction with a small welding machine to perform metal welding operations in mobile or confined spaces.

[0003] Existing portable arc welding torches typically use electrodes connected to the power source via conductive rods installed inside the casing. This prevents the electrode angle from being adjusted, thus limiting the ability to adjust the welding angle as needed, resulting in poor performance. Furthermore, the lack of an adsorption mechanism on the torch allows welding fumes to disperse into the surrounding environment, posing a health risk to workers and providing poor protection. Therefore, we propose a portable arc welding torch with an adjustable welding angle. Utility Model Content

[0004] The purpose of this invention is to address the aforementioned shortcomings in the existing technology by proposing a portable arc welding gun with an adjustable welding angle.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: a portable arc welding gun with adjustable welding angle is designed, including a shell, a hollow connecting rod installed at one end of the shell, a universal ball seat connected to one end of the hollow connecting rod, a universal ball head provided inside the universal ball seat, an electrode head connected to one end of the universal ball head through a conductive rod, and a conductive sleeve installed on the inner wall of the universal ball seat, the inner wall of the conductive sleeve being in contact with the outer surface of the universal ball head; A locking nut is fitted at one end of the universal ball seat, and the locking nut is threaded to the outer surface of the universal ball seat. An open slot is provided at one end of the universal ball seat. When the locking nut is tightened, the open slot closes, and the inner wall of the universal ball seat is firmly connected to the universal ball head. An insulating sleeve is installed on the outer surface of the conductive rod, and a gas collecting hood is installed on the outer surface of the insulating sleeve. An air inlet is provided at one end of the gas collecting hood near the electrode head, and an adsorption tube is connected to one side of the gas collecting hood. A negative pressure pump is installed inside the outer shell. The other end of the adsorption tube passes through the outer shell and is connected to the air inlet of the negative pressure pump. An exhaust pipe is connected to the air outlet of the negative pressure pump, and the other end of the exhaust pipe passes through the outer shell and is connected to the waste gas treatment equipment.

[0006] Preferably, an anti-slip ring is installed at the end of the hollow connecting rod near the universal ball seat. When one end of the locking nut abuts against the side of the anti-slip ring, the opening slot opens, and there is a gap between the inner wall of the universal ball seat and the outer surface of the universal ball head.

[0007] Preferably, the universal ball joint is made of copper alloy.

[0008] Preferably, the outer casing has a battery compartment inside, and a battery is installed inside the battery compartment. The battery is connected to a corresponding switch and a conductive sleeve via wires, and the battery is also connected to a corresponding switch and a negative pressure pump via wires.

[0009] Preferably, the adsorption tube is a flexible pipe.

[0010] Preferably, there is a gap between the insulating sleeve and the near end of the universal ball joint.

[0011] Preferably, a handle is installed on the bottom of the casing.

[0012] The design scheme proposed in this utility model has the following beneficial effects in application: 1. By using the universal ball joint and the universal ball head, the electrode head can be rotated along the universal ball head and the universal ball joint. Then, it is fixed by locking the screw sleeve. The tilt angle of the electrode head can be adjusted according to the welding angle to improve the performance.

[0013] 2. The negative pressure pump can draw the gas out of the gas collection hood through the adsorption pipe, so that the air inlet 6 will generate suction to draw the welding waste gas into the gas collection hood. Finally, it is discharged into the waste gas treatment equipment for treatment through the adsorption pipe and the exhaust pipe. The waste gas will not drift into the surrounding environment in large quantities and be inhaled by the workers, thus improving the protection effect. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the structure of this utility model; Figure 2 This is a side view of the present invention; Figure 3 This is a side sectional view of the universal ball joint and universal ball head structure of this utility model; Figure 4 This is a side sectional view of the shell structure of this utility model.

[0015] In the diagram: 1. Outer shell; 2. Hollow connecting rod; 3. Locking screw sleeve; 4. Opening groove; 5. Gas collection hood; 6. Air inlet; 7. Electrode head; 8. Universal ball joint; 9. Anti-detachment ring; 10. Adsorption tube; 11. Handle; 12. Exhaust pipe; 13. Insulating sleeve; 14. Universal ball joint; 15. Conductive sleeve; 16. Battery compartment; 17. Battery; 18. Negative pressure pump; 19. Conductive rod; 20. Switch. Detailed Implementation

[0016] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0017] Reference Figures 1-4 A portable arc welding gun with adjustable welding angle includes a housing 1. Several switches 20 are installed on the side of the housing 1. A hollow connecting rod 2 is installed at one end of the housing 1. One end of the hollow connecting rod 2 is connected to a universal ball seat 8. The universal ball seat 8 has a universal ball head 14 inside. One end of the universal ball head 14 is connected to an electrode head 7 through a conductive rod 19. In actual use, the tilt angle of the electrode head 7 in any direction can be adjusted by the cooperation of the universal ball seat 8 and the universal ball head 14, thereby adjusting the welding angle as needed.

[0018] It should be noted that, as Figure 2 and Figure 3 As shown, there is a gap between the insulating sleeve 13 and the near end of the universal ball seat 8, so that when the electrode head 7 rotates, the insulating sleeve 13 will not be lower than the end of the universal ball seat 8 and thus will not hinder the tilting of the electrode head 7.

[0019] like Figure 3 As shown, a conductive sleeve 15 is installed on the inner wall of the universal ball seat 8. The inner wall of the conductive sleeve 15 is in contact with the outer surface of the universal ball head 14. The universal ball head 14 can be made of copper alloy or other highly conductive materials. A battery compartment 16 is provided inside the outer shell 1. A battery 17 is installed inside the battery compartment 16. The battery 17 is connected to the corresponding switch 20 and the conductive sleeve 15 through wires. In this way, the battery 17 can transfer electrical energy to the conductive sleeve 15 through wires, and then to the electrode head 7 through the conductive sleeve 15, the universal ball head 14 and the conductive rod 19, so that the electrode head 7 can discharge and perform welding processing on the workpiece.

[0020] like Figure 1 and Figure 3 As shown, a locking sleeve 3 is fitted onto one end of the universal ball seat 8, and the locking sleeve 3 is threadedly connected to the outer surface of the universal ball seat 8. An opening groove 4 is provided at one end of the universal ball seat 8. When the locking sleeve 3 is tightened, the opening groove 4 closes, and the inner wall of the universal ball seat 8 is firmly connected to the universal ball head 14. In actual use, after adjusting the tilt angle of the electrode head 7, the operator tightens the locking sleeve 3. During the rotation of the locking sleeve 3, it will squeeze the universal ball seat 8, causing the opening groove 4 to close. In this way, the universal ball seat 8 will press tightly against the surface of the universal ball head 14, clamping and fixing the universal ball head 14, thereby clamping and fixing the electrode head 7, which is convenient for fixing.

[0021] like Figure 3 and Figure 4As shown, an insulating sleeve 13 is installed on the outer surface of the conductive rod 19, and a gas collecting hood 5 is installed on the outer surface of the insulating sleeve 13. The gas collecting hood 5 has an air inlet 6 at one end near the electrode head 7, and an adsorption tube 10 is connected to one side of the gas collecting hood 5. A negative pressure pump 18 is installed inside the outer shell 1. The other end of the adsorption tube 10 passes through the outer shell 1 and is connected to the air inlet of the negative pressure pump 18. The air outlet of the negative pressure pump 18 is connected to an exhaust pipe 12. The other end of the exhaust pipe 12 passes through the outer shell 1 and is connected to the waste gas treatment equipment. The negative pressure pump 18 is connected to the switch 20 and the battery 17 through a wire. In actual use, the battery 17 supplies power to the negative pressure pump 18. The negative pressure pump 18 can draw out the gas in the gas collecting hood 5 through the adsorption tube 10, so that the air inlet 6 generates suction, adsorbs the waste gas generated during the welding process and discharges it into the waste gas treatment equipment along the exhaust pipe 12, so as to avoid the waste gas being inhaled by the workers and improve the protection effect.

[0022] It should be noted that the adsorption tube 10 is a flexible tube, so when adjusting the tilt angle of the electrode head 7, the adsorption tube 10 will move with the electrode head 7 and will not hinder the adjustment of the electrode head 7.

[0023] Specifically, in use, the operator loosens the locking sleeve 3, causing the opening groove 4 to open. At this time, the inner wall of the universal ball seat 8 will not press against the surface of the universal ball head 14, and the universal ball head 14 will loosen. The operator then adjusts the tilt angle of the electrode head 7. After adjustment, the operator tightens the locking sleeve 3, which moves towards the electrode head 7 and presses against the side wall of the universal ball seat 8. The opening groove 4 closes, and the side wall of the universal ball seat 8 tightly presses and fixes the universal ball head 14, thus fixing the electrode head 7. The electrode head 7 is easy to fix and can be tilted at an angle as needed to improve its performance. During the welding process, the operator controls the negative pressure pump 18 through the switch 20. The negative pressure pump 18 draws the gas out of the gas collection hood 5 through the adsorption pipe 10, which causes the air inlet 6 to generate suction. The exhaust gas generated during the welding process is drawn into the gas collection hood 5 through the air inlet 6, and then discharged into the external exhaust gas treatment equipment through the adsorption pipe 10 and the exhaust pipe 12 for treatment. The exhaust gas will not drift into the surrounding environment, thus improving the protection effect.

[0024] Furthermore, such as Figure 1 and Figure 2 As shown, a locking ring 9 is installed at one end of the hollow connecting rod 2 near the universal ball seat 8. When one end of the locking nut 3 abuts against the side of the locking ring 9, the opening groove 4 opens, and there is a gap between the inner wall of the universal ball seat 8 and the outer surface of the universal ball head 14. The locking nut 3 can be limited by the locking ring 9, and the locking nut 3 will not separate from the universal ball seat 8.

[0025] Furthermore, such as Figure 1 and Figure 2As shown, a handle 11 is installed at the bottom of the outer casing 1. When in use, the operator can hold the handle 11 and then move the electrode head 7 to the part of the workpiece to be welded for welding processing.

[0026] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A portable arc welding gun with adjustable welding angle, comprising a housing (1), characterized in that: A hollow connecting rod (2) is installed at one end of the outer shell (1), and a universal ball seat (8) is connected to one end of the hollow connecting rod (2). A universal ball head (14) is provided inside the universal ball seat (8). An electrode head (7) is connected to one end of the universal ball head (14) through a conductive rod (19). A conductive sleeve (15) is installed on the inner wall of the universal ball seat (8). The inner wall of the conductive sleeve (15) is in contact with the outer surface of the universal ball head (14). A locking nut (3) is fitted on one end of the universal ball seat (8), and the locking nut (3) is threaded to the outer surface of the universal ball seat (8). An opening groove (4) is provided on one end of the universal ball seat (8). When the locking nut (3) is tightened, the opening groove (4) is closed, and the inner wall of the universal ball seat (8) is tightly connected to the universal ball head (14). An insulating sleeve (13) is installed on the outer surface of the conductive rod (19), and a gas collecting hood (5) is installed on the outer surface of the insulating sleeve (13). The gas collecting hood (5) has an air inlet (6) at one end near the electrode head (7), and an adsorption tube (10) is connected to one side of the gas collecting hood (5). A negative pressure pump (18) is installed inside the outer shell (1). The other end of the adsorption tube (10) passes through the outer shell (1) and is connected to the air inlet of the negative pressure pump (18). The outlet of the negative pressure pump (18) is connected to an exhaust pipe (12). The other end of the exhaust pipe (12) passes through the outer shell (1) and is connected to the waste gas treatment equipment.

2. The portable arc welding gun with adjustable welding angle according to claim 1, characterized in that: The hollow connecting rod (2) is fitted with an anti-detachment ring (9) at one end near the universal ball seat (8). When one end of the locking nut (3) abuts against the side of the anti-detachment ring (9), the opening groove (4) opens, and there is a gap between the inner wall of the universal ball seat (8) and the outer surface of the universal ball head (14).

3. The portable arc welding gun with adjustable welding angle according to claim 2, characterized in that: The universal ball joint (14) is made of copper alloy.

4. The portable arc welding gun with adjustable welding angle according to claim 1, characterized in that: The outer casing (1) has a battery compartment (16) inside, and a battery (17) is installed inside the battery compartment (16). The battery (17) is connected to the corresponding switch (20) and the conductive sleeve (15) through wires. The battery (17) is also connected to the corresponding switch (20) and the negative pressure pump (18) through wires.

5. The portable arc welding gun with adjustable welding angle according to claim 1, characterized in that: The adsorption tube (10) is a flexible pipe.

6. The portable arc welding gun with adjustable welding angle according to claim 1, characterized in that: There is a gap between the insulating sleeve (13) and the near end of the universal ball seat (8).

7. The portable arc welding gun with adjustable welding angle according to claim 1, characterized in that: A handle (11) is installed on the bottom of the outer casing (1).

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