Gas delivery push wire welding gun cable for oxyacetylene welder

Abstract

The application relates to the technical field of cables and discloses a gas conveying push-wire welding gun cable for an oxyacetylene welding machine, which comprises a conduit cable, the outer surface of the conduit cable is covered with a rubber insulation tube, and a gas conveying guide base is fixedly installed on the outer surface of the rubber insulation tube; wherein the conduit cable comprises a gas guide pipe, the outer periphery of the gas guide pipe is provided with a wire core, the surface of the wire core is covered with a wrapping layer, and the outer surface of the gas guide pipe and the wrapping layer is sequentially covered with an inner protective sleeve and a metal protective layer. The gas conveying push-wire welding gun cable for the oxyacetylene welding machine further strengthens the insulation performance through the insulation layer of the metal protective layer, the braided layer formed by tinned copper wire weaving provides mechanical protection against stretching, extrusion and electromagnetic interference for the cable, the outer protective sleeve made of FE polyethylene material seals and protects the braided layer, prevents the copper wire from being oxidized and damp, the rubber insulation tube at the outermost layer provides overall insulation, wear resistance and aging resistance protection, and is suitable for complex working conditions in a welding site.

Description

Technical Field

[0001] This invention relates to the field of cable technology, specifically to a gas delivery pusher welding gun cable for an oxyacetylene welding machine. Background Technology

[0002] Oxyacetylene welding, with its high flame temperature and wide range of welding applications, is widely used in metal component welding, on-site maintenance, and welding under special working conditions. When paired with a welding torch with a wire pusher structure, it can achieve continuous wire feeding, greatly improving welding efficiency and quality. It is currently a commonly used operation method in industrial welding.

[0003] As a core component connecting the welding machine host and the welding torch, the welding torch cable is responsible for transmitting welding current, pushing welding wire, and ensuring the stable supply of oxygen and acetylene welding gases. Its structural rationality, safety in use, and operational stability directly determine the welding efficiency, welding quality, and on-site operational safety.

[0004] Currently, most conventional oxyacetylene welding torch cables on the market adopt a separate gas path and circuit design, or a simple integrated structure. These designs have numerous technical shortcomings in actual welding operations, making it difficult to meet the welding needs of high-frequency, high-intensity, and complex working conditions. Traditional welding torch cables often simply wrap the gas tube and conductive core without an independent gas path isolation structure. The conductive components are in direct proximity to flammable and explosive oxyacetylene gas, which can easily lead to aging of the circuit and insulation damage over long-term use, potentially causing short circuits, leakage, or even ignition of leaked gas, resulting in fires, explosions, and other safety accidents. Furthermore, the lack of a dedicated protective layer for the gas path makes the gas tube prone to deformation and cracking during cable bending and dragging, leading to gas leaks. This wastes welding gas and significantly increases operational risks. Summary of the Invention

[0005] The purpose of this invention is to provide a gas delivery push-wire welding torch cable for oxyacetylene welding machines, in order to solve the problems mentioned in the background art. Traditional welding torch cables simply wrap the gas tube and the conductive core without an independent gas path isolation structure. The conductive parts are in direct proximity to flammable and explosive oxyacetylene gas. Long-term use can easily lead to aging of the circuit and damage to the insulation, which can easily cause short circuits, leakage, or even ignition of leaked gas, resulting in fires, explosions and other safety accidents.

[0006] To achieve the above objectives, the present invention provides the following technical solution: a gas delivery pusher welding gun cable for an oxyacetylene welding machine, comprising: a conduit cable, the outer surface of which is covered with a rubber insulating tube, and a gas delivery guide seat is fixedly installed on the outer surface of the rubber insulating tube; The conduit cable includes an air duct with a wire core surrounding it. The surface of the wire core is covered with a wrapping layer. The outer surfaces of the air duct and the wrapping layer are successively covered with an inner sheath and a metal protective layer. The welding current output by the welding machine is transmitted through the wire core, which is arranged around the air duct. While transmitting current, the wire core provides structural support for the cable. The wrapping layer isolates and tightens the wire core, preventing short circuits between them and improving the cable's bending resistance. The wire core uses tin-plated soft copper conductors, which have high conductivity and low resistance, enabling stable transmission of welding current, reducing current loss, ensuring the stability of the welding arc, and effectively preventing oxidation and corrosion of the copper conductor, extending the service life of the wire core and avoiding welding defects caused by poor contact.

[0007] Furthermore, the air duct is made of nylon, the wire core is made of tin-plated soft copper conductor, and the wrapping layer is made of thin polyester tape. The inner sheath of FE polyethylene material provides the first layer of sealing protection for the wrapping layer, air duct, and wire core, effectively preventing the air duct from deforming and cracking when the cable is frequently bent or dragged, extending the service life of the air circuit, and ensuring airtightness for long-term use.

[0008] Furthermore, the metal protective layer comprises an insulation layer, a braided layer, and an outer sheath arranged sequentially from the inside out. The braided mesh structure provides excellent elastic cushioning and structural support. When the cable is subjected to trampling, heavy object compression, or hard object collision, the braided layer 312 can absorb and disperse external impact forces, effectively protecting the inner air guide tube 34, wire core 35, and inner sheath 32 from being flattened, cracked, or damaged, ensuring unobstructed airflow and stable circuitry, and preventing air leakage, electrical leakage, and wire feeding obstruction due to mechanical damage. Under the frequent swinging, twisting, and bending conditions of the wire pusher welding torch, the internal wire core 35 and air guide tube 34 are prone to relative displacement, loosening, and bulging. The braided layer 312 tightly binds the internal structures into a whole through circumferential binding force, allowing the cable to maintain its round shape after multiple bends and twists, preventing internal structural disarray and channel deformation, thereby ensuring smooth wire feeding, stable gas delivery, and reliable current transmission.

[0009] Furthermore, both the inner and outer sheaths are made of FE polyethylene material, the braided layer is made of tin-plated copper wire, and the insulation layer covers the surface of the inner sheath. The insulation layer of the metal protective layer further enhances the insulation performance, and the braided layer made of tin-plated copper wire provides the cable with mechanical protection against tensile stress, compression, and electromagnetic interference. The outer sheath of FE polyethylene material seals and protects the braided layer, preventing the copper wire from oxidizing and getting damp. The outermost rubber insulating tube provides overall insulation, wear resistance, and aging resistance protection, adapting to the complex working conditions of the welding site.

[0010] Furthermore, the gas supply guide includes a protective shell, a handle fixedly mounted on the surface of the protective shell, a connecting pipe fixedly mounted inside the protective shell, and a gas supply pipe fixedly mounted inside the connecting pipe. The operator holds the handle to connect the gas supply pipe inside the connecting pipe to the oxygen and acetylene gas sources, allowing the oxygen and acetylene gas sources of the oxy-acetylene welding machine to be respectively connected to the connecting pipe of the gas supply guide through pipelines. Both the protective shell and the handle of the gas supply guide are made of rubber insulation material, providing insulation protection for the operator, avoiding the risk of electric shock, and improving grip comfort.

[0011] Furthermore, the protective shell and handle are both made of rubber insulation material, and the gas supply pipe is connected to the gas guide pipe. The gas supply pipe inside the connector is sealed and connected to the gas guide pipe inside the conduit cable, forming a complete gas delivery path. Oxygen and acetylene gases are stably delivered inside the conduit cable along the nylon gas guide pipe. The gas guide pipe is independent of the conductive wire core and is made of nylon material, which has excellent high pressure resistance, corrosion resistance, and aging resistance. It can stably deliver flammable and explosive gases such as oxygen and acetylene, avoiding mutual interference between the gas path and the circuit, reducing the safety hazards caused by gas leakage and short circuits from the source. At the same time, the independent gas path ensures stable gas flow and avoids gas path blockage caused by cable bending, improving the stability of the welding flame.

[0012] Compared with the prior art, the beneficial effects of the present invention are as follows: (i) The gas delivery pusher welding gun cable used in the oxyacetylene welding machine has a tin-plated soft copper conductor core, which has high conductivity and low resistance characteristics. It can stably transmit welding current, reduce current loss, ensure the stability of welding arc, and the tin plating layer effectively prevents oxidation and corrosion of copper conductor, extends the service life of the core, and avoids welding defects caused by poor contact.

[0013] (ii) The gas delivery pusher welding gun cable used in this oxyacetylene welding machine has an inner sheath of FE polyethylene material that provides the first layer of sealing protection for the wrapping layer, gas guide tube, and wire core, effectively preventing the gas guide tube from deforming and cracking when the cable is frequently bent or dragged, extending the service life of the gas circuit, and ensuring the airtightness for long-term use.

[0014] (III) The gas delivery push wire welding gun cable used in this oxyacetylene welding machine has a metal protective layer that further enhances the insulation performance. The braided layer made of tinned copper wire provides the cable with mechanical protection against tensile stress, compression and electromagnetic interference. The outer sheath of FE polyethylene material seals and protects the braided layer to prevent the copper wire from oxidizing and getting damp. The outermost rubber insulating tube provides overall insulation, wear resistance and aging resistance protection, making it suitable for the complex working conditions of the welding site.

[0015] (iv) The gas delivery pusher welding gun cable used in the oxyacetylene welding machine is connected by the operator holding the handle to the gas supply pipe inside the connector and the oxygen and acetylene gas sources, so that the oxygen and acetylene gas sources of the oxyacetylene welding machine are respectively connected to the connector of the gas delivery guide seat through the pipeline. The protective shell of the gas delivery guide seat and the handle are made of rubber insulation material to provide insulation protection for the operator, avoid the risk of electric shock, and improve the grip comfort.

[0016] (v) The gas delivery pusher welding torch cable used in this oxyacetylene welding machine has a sealed connection between the gas delivery pipe inside the connector and the gas guide pipe inside the conduit cable, forming a complete gas delivery path. Oxygen and acetylene gases are stably delivered inside the conduit cable along the nylon gas guide pipe. The gas guide pipe is independent of the conductive wire core and is made of nylon material, which has excellent high pressure resistance, corrosion resistance and aging resistance. It can stably deliver flammable and explosive gases such as oxygen and acetylene, avoid mutual interference between the gas path and the circuit, reduce the safety hazards caused by gas leakage and short circuit from the source, and at the same time, the independent gas path ensures stable gas flow and avoids gas path blockage caused by cable bending, thereby improving the stability of the welding flame. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall structure of the present invention; Figure 2 This is a schematic diagram of the internal structure of the conduit cable of the present invention; Figure 3 This is a schematic diagram of the gas delivery guide structure of the present invention; Figure 4 This is a schematic diagram of the cross-sectional structure of the conduit cable of the present invention; Figure 5 This is a schematic diagram of the conduit cable structure of the present invention; Figure 6 This is a schematic diagram of the metal protective layer structure of the present invention.

[0018] Figure 7 This is a schematic diagram of the braided layer structure of the present invention.

[0019] In the diagram: 1. Rubber insulating tube; 2. Gas delivery guide; 21. Handle; 22. Protective shell; 23. Gas delivery pipe; 24. Connecting pipe; 3. Conduit cable; 31. Metal protective layer; 311. Insulation layer; 312. Braided layer; 313. Outer sheath; 32. Inner sheath; 33. Wrapping layer; 34. Gas delivery tube; 35. Wire core. Detailed Implementation

[0020] Example 1, as Figures 1 to 7 As shown, the present invention provides a technical solution: a gas delivery pusher welding gun cable for an oxyacetylene welding machine, comprising: a conduit cable 3, the outer surface of the conduit cable 3 being covered with a rubber insulating tube 1, and a gas delivery guide seat 2 being fixedly installed on the outer surface of the rubber insulating tube 1; The conduit cable 3 includes a gas duct 34, with a wire core 35 arranged around its outer periphery. The surface of the wire core 35 is covered with a wrapping layer 33. The outer surfaces of the gas duct 34 and the wrapping layer 33 are sequentially covered with an inner sheath 32 and a metal protective layer 31. The welding current output by the welding machine is transmitted through the wire core 35, which is arranged around the gas duct 34. While transmitting current, the wire core 35 provides structural support for the cable. The wrapping layer 33 isolates and tightens the wire core 35, preventing short circuits between them and improving the cable's bending resistance. The wire core 35 uses tin-plated soft copper conductors, which have high conductivity and low resistance, enabling stable transmission of welding current, reducing current loss, ensuring the stability of the welding arc, and effectively preventing oxidation and corrosion of the copper conductor, extending the service life of the wire core 35 and avoiding welding defects caused by poor contact.

[0021] The air duct 34 is made of nylon, the wire core 35 is made of tin-plated soft copper conductor, and the wrapping layer 33 is made of thin polyester tape. The inner sheath 32 of FE polyethylene material provides the first layer of sealing protection for the wrapping layer 33, air duct 34, and wire core 35, effectively preventing the air duct 34 from deforming or cracking when the cable is frequently bent or dragged, extending the service life of the air circuit, and ensuring airtightness for long-term use.

[0022] The metal protective layer 31 includes an insulating layer 311, a braided layer 312, and an outer sheath 313 arranged sequentially from the inside out. The braided mesh structure has good elastic buffering and structural support. When the cable is stepped on, squeezed by heavy objects, or hit by hard objects, the braided layer 312 can absorb and disperse the external impact force, effectively protecting the inner air guide tube 34, wire core 35, and inner sheath 32 from being flattened, cracked, or damaged, ensuring smooth air passage and stable circuit, and avoiding air leakage, electrical leakage, and wire feeding obstruction caused by mechanical damage. Under the condition of frequent swinging, twisting, and bending of the wire pusher welding gun, the internal wire core 35 and air guide tube 34 are prone to relative displacement, loosening, and bulging. The braided layer 312 tightly binds the internal structures into a whole through circumferential binding force, so that the cable still maintains its round shape after multiple bends and twists, avoiding internal structural disarray and channel deformation, thereby ensuring smooth wire pushing, stable gas delivery, and reliable current transmission.

[0023] Both the inner sheath 32 and the outer sheath 313 are made of FE polyethylene material. The braided layer 312 is made of tin-plated copper wire, and the insulation layer 311 covers the surface of the inner sheath 32. The insulation layer 311 of the metal protective layer 31 further enhances the insulation performance. The braided layer 312 made of tin-plated copper wire provides the cable with mechanical protection against tensile stress, compression, and electromagnetic interference. The outer sheath 313 of FE polyethylene material seals and protects the braided layer 312, preventing the copper wire from oxidizing and getting damp. The outermost rubber insulating tube 1 provides overall insulation, wear resistance, and aging resistance protection, adapting to the complex working conditions of the welding site.

[0024] Example 2, based on Example 1, such as Figure 3 As shown, the gas supply guide 2 includes a protective shell 22, a handle 21 fixedly installed on the surface of the protective shell 22, a connecting pipe 24 fixedly installed inside the protective shell 22, and a gas supply pipe 23 fixedly installed inside the connecting pipe 24. The operator holds the handle 21 to connect the gas supply pipe 23 inside the connecting pipe 24 to the oxygen and acetylene gas sources, so that the oxygen and acetylene gas sources of the oxy-acetylene welding machine are respectively connected to the connecting pipe 24 of the gas supply guide 2 through pipelines. Both the protective shell 22 and the handle 21 of the gas supply guide 2 are made of rubber insulation material, providing insulation protection for the operator, avoiding the risk of electric shock, and improving grip comfort.

[0025] The protective shell 22 and handle 21 are both made of rubber insulation material, and the gas supply pipe 23 is connected to the gas guide pipe 34. The gas supply pipe 23 inside the connecting pipe 24 is sealed and connected to the gas guide pipe 34 inside the conduit cable 3, forming a complete gas delivery path. Oxygen and acetylene gases are stably delivered inside the conduit cable 3 along the nylon gas guide pipe 34. The gas guide pipe 34 is independent of the conductive wire core 35 and is made of nylon material, which has excellent high pressure resistance, corrosion resistance, and aging resistance. It can stably deliver flammable and explosive gases such as oxygen and acetylene, avoiding mutual interference between the gas path and the circuit, reducing the safety hazards caused by gas leakage and short circuit from the source. At the same time, the independent gas path ensures stable gas flow and avoids gas path blockage caused by cable bending, improving the stability of the welding flame.

[0026] When in use, the operator holds the handle 21 and connects the gas supply pipe 23 inside the connecting pipe 24 to the oxygen and acetylene gas sources, so that the oxygen and acetylene gas sources of the oxyacetylene welding machine are respectively connected to the connecting pipe 24 of the gas supply guide seat 2 through pipelines. The protective shell 22 of the gas supply guide seat 2 and the handle 21 are both made of rubber insulation material, which provides insulation protection for the operator, avoids the risk of electric shock, and improves the grip comfort.

[0027] The gas supply pipe 23 inside the connector 24 is sealed and connected to the gas guide pipe 34 inside the conduit cable 3, forming a complete gas delivery path. Oxygen and acetylene gases are stably delivered inside the conduit cable 3 along the nylon gas guide pipe 34. The gas guide pipe 34 is independent of the conductive wire core 35 and is made of nylon, which has excellent high pressure resistance, corrosion resistance, and aging resistance. It can stably deliver flammable and explosive gases such as oxygen and acetylene, avoiding mutual interference between the gas path and the circuit, reducing the safety hazards caused by gas leakage and short circuit from the source. At the same time, the independent gas path ensures stable gas flow and avoids gas path blockage caused by cable bending, improving the stability of the welding flame.

[0028] The welding current output by the welding machine is transmitted through the wire core 35, which is arranged around the gas duct 34. While transmitting current, the wire core 35 also provides structural support for the cable. The sheath 33 isolates and tightens the wire core 35, preventing short circuits between them and improving the cable's bending resistance. The wire core 35 uses tin-plated soft copper conductors, which have high conductivity and low resistance, ensuring stable transmission of welding current, reducing current loss, and guaranteeing the stability of the welding arc. Furthermore, the tin plating effectively prevents oxidation and corrosion of the copper conductor, extending the service life of the wire core 35 and avoiding welding defects caused by poor contact.

[0029] The inner sheath 32 of FE polyethylene material provides the first layer of sealing protection for the wrapping layer 33, the air duct 34, and the wire core 35, effectively preventing the air duct 34 from deforming and cracking when the cable is frequently bent and dragged, extending the service life of the air circuit, and ensuring the airtightness for long-term use. The insulation layer 311 of the metal protective layer 31 further enhances the insulation performance. The braided layer 312 made of tin-plated copper wire provides the cable with mechanical protection against tensile, extrusion, and electromagnetic interference. The outer sheath 313 of FE polyethylene material seals and protects the braided layer 312, preventing the copper wire from oxidizing and getting damp. The outermost rubber insulating tube 1 provides overall insulation, wear resistance, and aging resistance protection, adapting to the complex working conditions of the welding site.

[0030] The braided mesh structure has good elasticity, buffering and structural support. When the cable is stepped on, squeezed by heavy objects, or hit by hard objects, the braided layer 312 can absorb and disperse the external impact force, effectively protecting the inner air duct 34, wire core 35 and inner sheath 32 from being flattened, cracked or damaged, ensuring smooth air passage and stable circuit, and avoiding air leakage, electrical leakage and wire feeding obstruction caused by mechanical damage.

[0031] Under conditions of frequent oscillation, twisting, and bending of the wire pusher welding torch, the internal wire core 35 and the gas guide tube 34 are prone to relative displacement, loosening, and bulging. The braided layer 312 tightly binds the internal structures into a whole through circumferential binding force, so that the cable maintains its round shape after multiple bends and twists, avoiding internal structural disarray and channel deformation, thereby ensuring smooth wire feeding, stable gas delivery, and reliable current transmission.

[0032] The inner sheath 32 and outer sheath 313 made of FE polyethylene are prone to creep, elongation and loosening under long-term stress and high temperature. The braided layer 312, as a rigid reinforcing skeleton, can limit the plastic deformation of the sheath material and prevent the cable from elongating, loosening and increasing in outer diameter due to long-term use. It can maintain the stability of the cable size and ensure that the connection between the gas guide seat 2 and the conduit cable 3 is always tightly fitted, reducing the risk of air leakage and loosening.

[0033] The welding environment is subject to high-temperature radiation, sparks, and molten droplets. The metal mesh structure of the braided layer 312 can block some of the high-temperature heat source from directly acting on the inner insulation layer 311 and the inner sheath 32, delaying the heat aging, melting, and cracking of the polymer sheath material, extending the durability of the cable in harsh welding environments, and reducing safety hazards.

Claims

1. A gas delivery pusher welding torch cable for an oxyacetylene welding machine, characterized in that, include: The conduit cable (3) is covered with a rubber insulating tube (1), and a gas transmission guide seat (2) is fixedly installed on the outer surface of the rubber insulating tube (1). The conduit cable (3) includes an air duct (34), a wire core (35) is provided on the outer periphery of the air duct (34), the surface of the wire core (35) is covered with a wrapping layer (33), and the outer surfaces of the air duct (34) and the wrapping layer (33) are successively covered with an inner sheath (32) and a metal protective layer (31).

2. The gas delivery pusher welding torch cable for an oxyacetylene welding machine according to claim 1, characterized in that: The air duct (34) is made of nylon, the wire core (35) is made of tin-plated soft copper conductor, and the wrapping layer (33) is made of thin polyester tape.

3. The gas delivery pusher welding torch cable for an oxyacetylene welding machine according to claim 2, characterized in that: The metal protective layer (31) includes an insulating layer (311), a braided layer (312), and an outer sheath (313) arranged sequentially from the inside to the outside.

4. The gas delivery pusher welding torch cable for an oxyacetylene welding machine according to claim 3, characterized in that: Both the inner sheath (32) and the outer sheath (313) are made of FE polyethylene material. The braided layer (312) is made of tin-plated copper wire. The insulating layer (311) is wrapped around the surface of the inner sheath (32).

5. The gas delivery pusher welding torch cable for an oxyacetylene welding machine according to claim 4, characterized in that: The gas delivery guide (2) includes a protective shell (22), a handle (21) is fixedly installed on the surface of the protective shell (22), a connecting pipe (24) is fixedly installed inside the protective shell (22), and a gas delivery pipe (23) is fixedly installed inside the connecting pipe (24).

6. The gas delivery pusher welding torch cable for an oxyacetylene welding machine according to claim 5, characterized in that: The protective shell (22) and the grip (21) are both made of rubber insulation material, and the air supply pipe (23) is connected to the air guide pipe (34).

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