A welding torch having dual water cooled cables

Abstract

This utility model relates to the field of welding torch technology, specifically a welding torch with dual water-cooled cables. The utility model includes a welding torch head, with a metal tube fixedly installed at the upper end of the head. A retaining ring is fixedly fitted at one end of the metal tube, and a welding torch handle is fixedly fitted at the other end. Fastening blocks are fixedly installed on both sides of the outer wall of one end of the welding torch handle, and a housing is fixedly connected to the fastening blocks. A connecting plate is fixedly installed at one end of the housing. This utility model effectively blocks external heat sources, such as heat generated by the welding cable, through a heat insulation sleeve, preventing the dual water-cooled hoses from aging, cracking, or burning due to prolonged exposure to high temperatures. An elastic locking mechanism composed of a handle, a pin, and a compression spring facilitates the connection or disconnection of the cooling water outlet hose and the cooling water inlet hose. Compared to traditional threaded connections, this shortens installation and maintenance time and facilitates the replacement or repair of the dual water-cooled hoses.

Description

Technical Field

[0001] This utility model relates to the field of welding torches, specifically a welding torch with dual water-cooled cables. Background Technology

[0002] Welding torches with dual water-cooled cables are mainly used in applications requiring high current and long-term continuous welding. The vertical gas-electric welding method based on gas metal arc welding technology is a highly efficient welding method specifically designed for welding vertical seams between flat workpieces. It is suitable for heavy metal structures, such as shipbuilding, large oil storage tanks, and blast furnace shells. The dual water-cooled cables can cool different parts of the welding torch separately, such as the nozzle and the contact tip, allowing these critical components to be cooled down simultaneously. This improves the cooling rate of the welding torch and effectively prevents the welding torch from being damaged due to overheating.

[0003] In the operation of existing double water-cooled cable welding torches, the end of the torch is connected to one end of the double water-cooled hose. It is worth noting that the welding cable is compressed between the double water-cooled hoses, and the double water-cooled hose and the welding cable are wrapped together inside the cable sheath. However, there is a defect in actual use: because the welding torch needs to work continuously for a long time, the welding cable will generate high temperature during operation. Under this high temperature environment, the double water-cooled hose is easily melted, resulting in damage. Utility Model Content

[0004] The purpose of this invention is to provide a welding torch with dual water-cooled cables to solve the problems mentioned in the background art.

[0005] The objective of this utility model can be achieved through the following technical solutions: A welding torch with dual water-cooled cables includes a welding torch head. A metal tube is fixedly installed at the upper end of the welding torch head. A retaining ring is fixedly fitted at one end of the metal tube. A welding torch handle is fixedly fitted at one end of the metal tube. Fastening blocks are fixedly installed on both sides of the outer wall of one end of the welding torch handle. A housing is fixedly connected to the fastening blocks. A connecting plate is fixedly installed at one end of the housing. A welding torch guide is fixedly fitted inside the welding torch head. A welding cable is fixedly installed at the upper end of the welding torch guide. The outer wall of the welding cable contacts a dual water-cooling pipe. A connecting end is fixedly fitted at one end of the welding cable. The dual water-cooling pipe is fixedly fitted inside the metal tube, the retaining ring, and the housing. A protective component is provided at one end of the welding cable for easy disassembly and protection of the cooling pipe.

[0006] Preferably, the protective component includes an inlet connector and an outlet connector. A connecting sleeve is fixedly installed at one end of both the inlet connector and the outlet connector. A heat insulation sleeve is fixedly connected to one end of each of the two connecting sleeves. A cooling water outlet hose and a cooling water inlet hose are respectively fitted inside the two heat insulation sleeves. A wire ring is fitted on the outside of the cooling water outlet hose and the cooling water inlet hose.

[0007] Preferably, a fixing block is fixedly connected to the upper part of the outer wall of both the water inlet and the water outlet. A fixing sleeve is fixedly sleeved inside the fixing block. A compression spring is fixedly installed inside the fixing sleeve. A sliding piece is fixedly installed at the upper end of the compression spring. The sliding piece is slidably sleeved inside the fixing sleeve.

[0008] Preferably, a pin is fixedly connected inside the sliding piece, a handle is fixedly installed at the upper end of the pin, a sealing cover is slidably fitted onto the pin, the lower end of the sealing cover is fixedly installed at the upper end of the fixed sleeve, and the pin is sleeved through the inside of the fixed sleeve.

[0009] Preferably, the pin rods slide through the interior of the water inlet and water outlet joints, and sliding blocks are fixedly connected to the interior of the water inlet and water outlet joints at the top and bottom.

[0010] Preferably, both the inlet and outlet water connection ends are slidably fitted with cooling pipe ports. The outer wall of each cooling pipe port is provided with sliding grooves at the top and bottom. Each sliding groove is slidably connected with a sliding block, and each sliding groove is fitted with a pin rod.

[0011] Preferably, one end of each of the two cooling pipe ports is fixedly sleeved with a double water cooling pipe, and the outer walls of the two cooling pipe ports are fixedly sleeved inside the connecting plate.

[0012] The beneficial effects of this utility model are: 1. This utility model effectively blocks external heat sources such as welding wires by using a heat insulation sleeve, avoiding the problems of aging, cracking, or burning of the dual water-cooled hoses due to long-term exposure to high temperatures. With the help of an elastic locking mechanism composed of a handle, a pin, and a compression spring, the connection or disconnection of the cooling water outlet hose and the cooling water inlet hose can be completed. Compared with traditional threaded connections, this shortens the installation and maintenance time and facilitates the replacement or repair of the dual water-cooled hoses.

[0013] 2. This utility model ensures positioning when the sliding block and sliding groove are properly aligned, while the locking action of the pin prevents the cooling hose from falling off due to vibration or external force during operation. Attached Figure Description

[0014] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, for those skilled in the art, other drawings can be obtained based on these drawings without creative effort. Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This is a cross-sectional view of the overall structure of this utility model; Figure 3 This is a structural schematic diagram of the welding torch guide and double water cooling pipes of this utility model; Figure 4 This is a structural schematic diagram of the heat insulation sleeve and connecting sleeve of this utility model; Figure 5 This is a schematic diagram of the structure of the protective component of this utility model; Figure 6 This is a structural schematic diagram of the sliding block, fixed sleeve, and pin rod of this utility model.

[0015] The following labels are used in the attached diagram: 1. Welding torch head; 10. Dual water cooling pipe; 11. Welding torch guide; 12. Welding cable; 13. Connecting end; 2. Metal pipe; 3. Fixing ring; 4. Welding torch handle; 5. Outer shell; 51. Fastening block; 52. Connecting plate; 6. Cable grommets; 7. Protective components; 71. Water inlet connection end; 72. Water outlet connection end; 73. Connecting sleeve; 74. Heat insulation sleeve; 75. Cooling pipe port; 76. Cooling water outlet hose; 77. Cooling water inlet hose; 78. Sliding groove; 79. Fixing block; 710. Fixing sleeve; 711. Pin rod; 712. Compression spring; 713. Sliding plate; 714. Sealing cover; 715. Handle; 716. Sliding block. 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. 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 skilled in the art without creative effort are within the protection scope of the present utility model.

[0017] Please refer to Figures 1 to 3As shown, a welding torch with dual water-cooled cables includes a welding torch head 1. A metal tube 2 is fixedly installed on the upper end of the welding torch head 1. A fixing ring 3 is fixedly sleeved on one end of the metal tube 2. A welding torch handle 4 is fixedly sleeved on one end of the metal tube 2. Fastening blocks 51 are fixedly installed on both sides of the outer wall of one end of the welding torch handle 4. A housing 5 is fixedly connected to the fastening blocks 51. A connecting plate 52 is fixedly installed on one end of the housing 5. A welding torch guide head 11 is fixedly sleeved inside the welding torch head 1. A welding torch cable 12 is fixedly installed on the upper end of the welding torch guide head 11. The outer wall of the welding torch cable 12 contacts a dual water-cooled pipe 10. A connecting end 13 is fixedly sleeved on one end of the welding torch cable 12. The dual water-cooled pipe 10 is fixedly sleeved inside the metal tube 2, the fixing ring 3, and the housing 5. A protective component 7 for easy disassembly and protection of the cooling pipe is provided at one end of the welding torch cable 12.

[0018] In a specific embodiment, when the dual water-cooled cable welding gun is working, the welding current is conducted from the external power source through the welding cable 12 to the welding gun guide head 11, and then acts on the welding part through the welding gun head 1. During this process, the welding cable 12 generates a large amount of heat. At this time, the dual water cooling pipe 10 plays a key role. The cooling medium (usually water or special coolant) circulates in the dual water cooling pipe 10, carrying away the heat generated by the welding cable 12. Specifically, the cooling medium flows into the dual water cooling pipe 10 from the external cooling source, absorbs the heat of the welding cable 12 and its temperature rises, and then flows back to the cooling source to cool down. The cooled medium flows back into the dual water cooling pipe 10 for continuous circulation and cooling. The protective component 7 is used to facilitate the disassembly and protection of the cooling pipe. When the cooling pipe needs maintenance or replacement, the protective component 7 allows operators to quickly disassemble the relevant parts, improving maintenance efficiency. The dual water-cooled cable welding gun is a common method in the prior art and will not be described in detail here.

[0019] Please refer to Figure 1 and Figure 2 , Figures 4 to 6 As shown, as a technical optimization of this utility model, the protective component 7 includes an inlet connector 71 and an outlet connector 72. A connecting sleeve 73 is fixedly installed at one end of both the inlet connector 71 and the outlet connector 72. A heat insulation sleeve 74 is fixedly connected to one end of each of the two connecting sleeves 73. A cooling water outlet hose 76 and a cooling water inlet hose 77 are respectively fitted inside the two heat insulation sleeves 74. A wire sheath 6 is fitted on the outside of the cooling water outlet hose 76, the cooling water inlet hose 77, and the welding cable 12. A fixing block 79 is fixedly connected to the upper part of the outer wall of both the inlet connector 71 and the outlet connector 72. A fixing sleeve 710 is fixedly fitted inside the fixing block 79. A compression spring 712 is fixedly installed inside the fixing sleeve 710. A sliding piece 713 is fixedly installed at the upper end of the compression spring 712. The sliding piece 713 is slidably fitted inside the fixing sleeve 710.

[0020] Furthermore, a pin 711 is fixedly connected inside the sliding plate 713. A handle 715 is fixedly installed at the upper end of the pin 711. A sealing cover 714 is slidably fitted onto the pin 711. The lower end of the sealing cover 714 is fixedly installed at the upper end of the fixed sleeve 710. The pin 711 is sleeved inside the fixed sleeve 710. The pin 711 slides through the water inlet connection end 71 and the water outlet connection end 72. Sliding blocks 716 are fixedly connected to the upper and lower parts of the water inlet connection end 71 and the water outlet connection end 72.

[0021] Furthermore, cooling pipe ports 75 are slidably fitted inside both the inlet docking end 71 and the outlet docking end 72. Sliding grooves 78 are provided on the upper and lower parts of the inner wall of the outer wall of the cooling pipe ports 75. Sliding blocks 716 are slidably connected inside the sliding grooves 78. Pin rods 711 are inserted into the inner wall of the sliding grooves 78. One end of each of the two cooling pipe ports 75 is fixedly fitted with a double water cooling pipe 10. The outer walls of the two cooling pipe ports 75 are fixedly fitted inside the connecting plate 52.

[0022] In a specific embodiment, by aligning the cooling pipe port 75 with the inlet of the water inlet connector 71 and the outlet connector 72, pulling the handle 715 upward causes the pin rod 711 to rise, compressing the compression spring 712 and inserting the cooling pipe port 75 into the connector. This allows the sliding block 716 to align and slide into the sliding groove 78. When the sliding groove 78 reaches the position of the pin rod 711, the handle 715 is released, the compression spring 712 returns to its original position, and the pin rod 711 is pushed into the sliding groove 78 to complete the locking. The water inlet connector 71 and the outlet connector 72 are respectively connected to the two cooling pipe ports 75 of the dual water cooling pipe 10 to form a cooling water circulation channel. The heat insulation sleeve 74 isolates the heat transfer between the cooling water pipe and the welding cable 12, thereby preventing the heat from the welding cable 12 from causing burns or damage to the cooling water outlet hose 76 and the cooling water inlet hose 77. The heat insulation sleeve 74 is made of ceramic fiber cloth or felt, which has excellent heat resistance and heat insulation effect.

[0023] In use, the dual water-cooled cable welding torch operates by transmitting welding current from an external power source through the welding cable 12 to the welding torch guide 11, and then acting on the welding area through the welding torch head 1. During this process, the welding cable 12 generates a large amount of heat. At this time, the dual water cooling pipe 10 plays a crucial role. The cooling medium (usually water or a special coolant) circulates within the dual water cooling pipe 10, carrying away the heat generated by the welding cable 12 and the welding torch guide 11. Then, by aligning the cooling pipe port 75 with the inlet of the water inlet 71 and the outlet of the water outlet 72, the handle 715 is pulled upwards. The pin rod 711 is raised, and the compression spring 712 is compressed, inserting the cooling pipe port 75 into the docking end. The sliding block 716 is aligned and slides into the sliding groove 78. When the sliding groove 78 reaches the position of the pin rod 711, the handle 715 is released, the compression spring 712 is reset, and the pin rod 711 is pushed into the sliding groove 78 to complete the fixing and locking. The water inlet docking end 71 and the water outlet docking end 72 are respectively connected to the two cooling pipe ports 75 of the dual water cooling pipe 10 to form a cooling water circulation channel. The heat insulation sleeve 74 isolates the heat transfer between the cooling water pipe and the welding cable 12.

[0024] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model.

Claims

1. A welding torch having dual water-cooled cables, characterized by: The welding torch includes a welding torch head (1), with a metal tube (2) fixedly installed at the upper end of the welding torch head (1). A fixing ring (3) is fixedly fitted at one end of the metal tube (2), and a welding torch handle (4) is fixedly fitted at one end of the metal tube (2). Fastening blocks (51) are fixedly installed on both sides of the outer wall of one end of the welding torch handle (4). A shell (5) is fixedly connected to the fastening blocks (51), and a connecting plate (52) is fixedly installed at one end of the shell (5). The inside of the welding torch head (1) is fixedly fitted with a metal tube (2). A welding torch guide (11) is fitted with a welding torch guide (11), and a welding torch wire (12) is fixedly installed on the upper end of the welding torch guide (11). The outer wall of the welding torch wire (12) contacts a double water cooling pipe (10). A connecting end (13) is fixedly fitted on one end of the welding torch wire (12). The double water cooling pipe (10) is fixedly fitted inside the metal pipe (2), the fixing ring (3), and the outer shell (5). A protective component (7) for easy disassembly and protection of the cooling pipe is provided on one end of the welding torch wire (12).

2. A welding torch having dual water cooled cables as defined in claim 1, wherein: The protective component (7) includes an inlet connector (71) and an outlet connector (72). A connecting sleeve (73) is fixedly installed at one end of the inlet connector (71) and the outlet connector (72). A heat insulation sleeve (74) is fixedly connected to one end of each of the two connecting sleeves (73). A cooling water outlet hose (76) and a cooling water inlet hose (77) are respectively fitted inside the two heat insulation sleeves (74). A wire ring (6) is fitted on the outside of the cooling water outlet hose (76) and the cooling water inlet hose (77), (12).

3. A welding torch having dual water cooled cables as defined in claim 2, wherein: A fixing block (79) is fixedly connected to the upper part of the outer wall of both the water inlet connection end (71) and the water outlet connection end (72). A fixing sleeve (710) is fixedly sleeved inside the fixing block (79). A compression spring (712) is fixedly installed inside the fixing sleeve (710). A sliding piece (713) is fixedly installed at the upper end of the compression spring (712). The sliding piece (713) is slidably sleeved inside the fixing sleeve (710).

4. A welding torch having dual water cooled cables as defined in claim 3, wherein: The sliding piece (713) is fixedly connected to a pin rod (711). A handle (715) is fixedly installed on the upper end of the pin rod (711). The pin rod (711) is slidably fitted with a sealing cover (714). The lower end of the sealing cover (714) is fixedly installed on the upper end of the fixed sleeve (710). The pin rod (711) is sleeved through the inside of the fixed sleeve (710).

5. A welding torch having dual water cooled cables as defined in claim 4, wherein: The pins (711) slide through the interior of the inlet connector (71) and the outlet connector (72), and the sliding blocks (716) are fixedly connected to the interior of the inlet connector (71) and the outlet connector (72) at the top and bottom.

6. A welding torch having dual water cooled cables as defined in claim 5, wherein: The inlet connection end (71) and outlet connection end (72) are both slidably fitted with cooling pipe ports (75). The outer wall of the cooling pipe port (75) is provided with sliding grooves (78) at the top and bottom. The sliding grooves (78) are slidably connected with sliding blocks (716). The sliding grooves (78) are all fitted with pins (711).

7. A welding torch having dual water cooled cables as defined in claim 6, wherein: One end of each of the two cooling pipe ports (75) is fixedly fitted with a double water cooling pipe (10), and the outer walls of the two cooling pipe ports (75) are fixedly fitted inside the connecting plate (52).

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