Welding torch capable of freely adjusting angle

Abstract

The utility model discloses a welding torch capable of freely adjusting an angle, and belongs to the technical field of welding tools. The welding torch comprises a welding torch body used for injecting oxygen and fuel gas; the injection and suction pipe is connected with the welding torch main body, the injection and suction pipe is provided with an injection and suction channel, and oxygen and fuel gas pass through the welding torch main body and then enter the injection and suction channel; one end of the hose is provided with a welding nozzle, the other end of the hose is connected with the injection and suction pipe through a connecting piece, and the injection and suction channel communicates with the welding nozzle through the hose. Through the arrangement of the hose, the angle of the welding nozzle can be easily and freely adjusted, the problem that a welding gun head of a traditional welding torch is difficult to steer is solved, the operation convenience and efficiency of a welder facing various complex geometrical shapes and narrow working spaces are greatly improved, and the higher welding operation requirement is met.

Description

Technical Field

[0001] The utility model belongs to the technical field of welding tools, and in particular relates to a welding torch with freely adjustable angles. Background Art

[0002] The tool used to control the gas mixture ratio, flow rate and flame during gas welding is called a welding torch or welding gun. The function of the welding torch is to mix the combustible gas and oxygen in a certain proportion and spray them out at a certain speed to generate a welding flame with a certain energy, composition and stable shape.

[0003] The welding tips of current welding torches are usually fixed at a specific angle or direction, which limits the welder's flexibility in welding complex geometries or confined spaces. Utility Model Content

[0004] The utility model aims at solving the above problems in the prior art and provides a welding torch with freely adjustable angle.

[0005] The utility model can be realized through the following technical solutions:

[0006] A welding torch with freely adjustable angle, comprising:

[0007] a welding torch body, which is used to inject oxygen and fuel gas;

[0008] An injection and suction pipe connected to the torch body, the injection and suction pipe having an injection and suction channel, oxygen and fuel gas pass through the torch body and then enter the injection and suction channel;

[0009] A hose, one end of which is equipped with a welding nozzle and the other end of which is connected to the injection and suction pipe through a connecting piece, and the injection and suction channel is connected to the welding nozzle through the hose.

[0010] As a further improvement of the present invention, the welding torch body comprises a handle tube, and a cavity is formed in the handle tube.

[0011] As a further improvement of the present invention, a mounting joint is provided at the head end of the handle tube, and the handle tube is connected to the ejection and suction tube via the mounting joint.

[0012] As a further improvement of the present invention, the installation joint has an interior containing cavity, and a mixed welding tip is installed in the containing cavity.

[0013] As a further improvement of the utility model, the tail end of the welding torch body is provided with an oxygen connector and a gas connector, wherein:

[0014] The air inlet pipe of the oxygen connector passes through the handle tube and is connected to the mixing welding tip;

[0015] The air inlet pipe of the gas connector is communicated with the cavity of the handle tube.

[0016] As a further improvement of the present invention, the mounting joint further defines an air intake passage, and two ends of the air intake passage are respectively connected to the accommodating chamber and the cavity.

[0017] As a further improvement of the present invention, the connecting piece comprises:

[0018] A shooting and suction tube nut, which is threadedly connected to the end of the shooting and suction tube;

[0019] A mixing pipe joint, one end of which is connected to the injection and suction pipe through the injection and suction pipe nut, and the other end is connected to the hose. The mixing pipe joint is arranged through along its axial direction and is used to connect the injection and suction pipe with the hose.

[0020] As a further improvement of the present invention, the mixing pipe joint is composed of a first joint part and a second joint part, wherein:

[0021] The first joint part is threadedly connected to the inner wall of the injection and suction tube nut, and an oblique seal is formed between the two;

[0022] One end of the second joint part is sealed with the inner wall of the first joint part at an angle, and the other end is inserted into the ejection and suction pipe and fixed to the ejection and suction pipe by welding.

[0023] As a further improvement of the utility model, the welding nozzle is provided with a central air outlet channel along its axial direction.

[0024] As a further improvement of the utility model, the welding tip is further provided with a side air outlet penetrating through the side wall thereof.

[0025] Compared with the prior art, the utility model has the following beneficial effects:

[0026] 1. Through the setting of the hose, the angle of the welding tip can be easily adjusted, which solves the problem that the traditional welding torch head is difficult to turn, greatly improves the convenience and efficiency of welders in facing various complex geometric shapes and narrow working spaces, and meets higher welding operation requirements;

[0027] 2. The oxygen and fuel gas are initially mixed in the mixed welding nozzle, which not only improves the mixing efficiency and reduces the possibility of incomplete combustion, but also lays a good foundation for further mixing and flame formation in the subsequent injection and absorption channel, greatly improving the working performance and welding quality of the welding torch;

[0028] 3. The segmented design of the mixing pipe joint, through double sealing and welding fixation, not only ensures the reliability and safety of gas mixing transmission, but also improves the overall working efficiency of the welding torch. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Figure 1 It is a structural schematic diagram of a welding torch with freely adjustable angle of the utility model.

[0030] In the figure, 100, welding torch body; 110, handle tube; 111, cavity; 120, mounting joint; 121, accommodating chamber; 122, air inlet channel; 130, mixed welding tip; 131, connecting hole; 140, oxygen joint; 150, gas joint;

[0031] 200, suction tube; 210, suction tube nut; 220, mixing tube joint; 221, first joint part; 222, second joint part;

[0032] 300, hose;

[0033] 400, welding tip; 410, central air outlet channel; 420, side air outlet hole. DETAILED DESCRIPTION

[0034] The following are specific embodiments of the present invention and the accompanying drawings to further describe the technical method of the present invention, but the present invention is not limited to these embodiments.

[0035] like Figure 1 As shown, the utility model provides a welding torch with freely adjustable angle, comprising:

[0036] A welding torch body 100, which is used to inject oxygen and fuel gas;

[0037] The jet suction pipe 200 is connected to the welding torch body 100. The jet suction pipe 200 has a jet suction channel. Oxygen and fuel gas pass through the welding torch body 100 and then enter the jet suction channel. The oxygen and fuel gas are mixed before entering the jet suction channel and further mixed in the jet suction channel to ensure the formation of a stable and controllable flame type.

[0038] The hose 300 has a welding tip 400 installed at one end and the other end is connected to the injection and suction tube 200 through a connector. The injection and suction channel is connected to the welding tip 400 through the hose 300. Through the setting of the hose 300, the angle of the welding tip 400 can be easily adjusted, which solves the problem that the welding gun head of the traditional welding torch is difficult to turn, greatly improves the operation convenience and efficiency of the welder when facing various complex geometric shapes and narrow working spaces, and meets higher welding operation requirements.

[0039] Preferably, the welding torch body 100 includes a handle tube 110, which has a cavity 111 therein, and a mounting joint 120 is provided at the head end of the handle tube 110. The handle tube 110 is connected to the ejection and suction tube 200 through the mounting joint 120, and the ejection and suction tube 200 and the mounting joint 120 are sealed by glue, which enhances the connection stability between the two, effectively prevents gas leakage, and ensures airtightness.

[0040] Preferably, the mounting joint 120 has an accommodating cavity 121 inside, and a mixing welding nozzle 130 is installed in the accommodating cavity 121. Oxygen and fuel gas are preliminarily mixed in the mixing welding nozzle 130, which not only improves the mixing efficiency and reduces the possibility of incomplete combustion, but also lays a good foundation for further mixing and flame formation in the subsequent injection and suction channel, greatly improving the working performance and welding quality of the welding torch.

[0041] Preferably, the mounting joint 120 also has an air inlet channel 122, the two ends of which are respectively connected to the accommodating cavity 121 and the cavity 111, and a connecting hole 131 is also provided on the side of the hybrid welding tip 130, and the accommodating cavity 121 is connected to the internal channel of the hybrid welding tip 130 through the connecting hole 131.

[0042] Specifically, the tail end of the welding torch body 100 is provided with an oxygen connector 140 and a gas connector 150, wherein:

[0043] The air inlet pipe of the oxygen connector 140 passes through the handle tube 110 and communicates with the mixing welding tip 130;

[0044] The gas inlet pipe of the gas connector 150 is in communication with the cavity 111 of the handle tube 110 .

[0045] That is to say, oxygen is directly delivered to the mixing welding tip 130 through its air inlet pipe, and the fuel gas is first input into the cavity 111 of the handle tube 110, and then the fuel gas enters the accommodating cavity 121 of the mounting joint 120 through the air inlet channel 122, and then enters the internal channel of the mixing welding tip 130 through the connecting hole 131 to mix with the oxygen.

[0046] Oxygen and fuel gas are precisely mixed in the mixing nozzle 130 to generate a flame suitable for the welding process. This series of ingenious layout and connection designs greatly ensures the gas supply stability and flame control accuracy during gas welding, making the welding operation more efficient, safe and easy to operate.

[0047] Preferably, the connecting piece comprises:

[0048] The suction tube nut 210 is an accessory with internal threads, which is designed to cooperate with the external threads at the end of the suction tube 200 to form a tight connection by rotating and tightening to prevent gas leakage;

[0049] The mixing pipe joint 220 has one end connected to the shooting and suction pipe 200 through the shooting and suction pipe nut 210, and the other end connected to the hose 300. The mixing pipe joint 220 is arranged to penetrate along its axial direction and is used to connect the shooting and suction pipe 200 and the hose 300. The mixed gas from the shooting and suction pipe 200 can pass through the mixing pipe joint 220 unimpeded, and is further transported to the welding nozzle 400 through the hose 300, sprayed outward and form a welding flame.

[0050] Furthermore, the mixing pipe joint 220 is composed of a first joint portion 221 and a second joint portion 222, wherein:

[0051] The first joint part 221 is screwed to the inner wall of the shooting and suction tube nut 210, and the two are sealed with an inclined surface, which not only enhances the stability of the connection part, but also achieves good air tightness through the inclined surface fitting, effectively preventing gas leakage under high pressure;

[0052] The second joint part 222 also adopts an inclined sealing design at one end, which is tightly attached to and sealed with the inner wall of the first joint part 221, ensuring that the gas delivered from the shooting and suction pipe 200 will not escape at the joint connection. The other end of the second joint part 222 is directly inserted into the shooting and suction pipe 200, and is fixedly connected to the shooting and suction pipe 200 by welding. This method enhances the strength and durability of the overall structure, while ensuring that the gas channel is unobstructed, avoiding problems such as gas leakage or reduced welding performance caused by loose or broken connections.

[0053] This segmented design of the mixing pipe joint 220 not only ensures the reliability and safety of gas mixing transmission through double sealing and welding fixation, but also improves the overall working efficiency of the welding torch.

[0054] Preferably, the welding tip 400 has a central gas outlet channel 410 along its axial direction, which is the position where the flame is finally ejected after the oxygen and fuel gas are mixed. The precisely mixed gas will be ejected at high speed through this central channel under high pressure to form a concentrated and controllable flame to achieve an ideal welding effect.

[0055] In addition to the central air outlet channel 410, the side wall of the welding tip 400 is also provided with side air outlet holes 420 that run through the side wall in a radial direction. The existence of these side air outlet holes 420 can adjust and disperse the shape of the flame to a certain extent, which is very useful for welding operations that require a larger heat-affected zone or preheating of surrounding materials. In addition, they can also assist the main flame and improve the uniformity of welding heat distribution, thereby helping to improve welding quality.

[0056] The technical means disclosed in the scheme of the utility model are not limited to the technical means disclosed by the above technical means, but also include technical solutions composed of any combination of the above technical features. The above is a specific implementation method of the utility model. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principle of the utility model, and these improvements and modifications are also regarded as the protection scope of the utility model.

[0057] It should be noted that all directional indications in the embodiments of the present invention (such as up, down, left, right, front, back...) are only used to explain the relative position relationship, movement status, etc. between the components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.

[0058] In addition, in the present invention, the descriptions of "first", "second", "one", etc. are only used for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" or "second" may explicitly or implicitly include at least one of the features. In the description of the present invention, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0059] In the present invention, unless otherwise clearly specified and limited, the terms "connection", "fixation", etc. should be understood in a broad sense. For example, "fixation" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0060] In addition, the technical solutions between the various embodiments of the present invention can be combined with each other, but it must be based on the fact that ordinary technicians in the field can implement it. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such combination of technical solutions does not exist and is not within the scope of protection required by the present invention.

Claims

1. A welding torch with freely adjustable angle, characterized in that: include: a welding torch body, which is used to inject oxygen and fuel gas; An injection and suction pipe connected to the torch body, the injection and suction pipe having an injection and suction channel, oxygen and fuel gas pass through the torch body and then enter the injection and suction channel; A hose, one end of which is equipped with a welding nozzle and the other end of which is connected to the injection and suction pipe through a connecting piece, and the injection and suction channel is connected to the welding nozzle through the hose.

2. A welding torch with freely adjustable angle according to claim 1, characterized in that: The torch body includes a handle tube having a cavity therein.

3. A welding torch with freely adjustable angle according to claim 2, characterized in that: The head end of the handle tube is provided with a mounting joint, and the handle tube is connected to the ejection and suction tube via the mounting joint.

4. A welding torch with freely adjustable angle according to claim 3, characterized in that: The mounting joint has an accommodating cavity inside, and a mixed welding tip is installed in the accommodating cavity.

5. A welding torch with freely adjustable angle according to claim 4, characterized in that: The tail end of the torch body is provided with an oxygen connector and a gas connector, wherein: The air inlet pipe of the oxygen connector passes through the handle tube and is connected to the mixing welding tip; The air inlet pipe of the gas connector is communicated with the cavity of the handle tube.

6. A welding torch with freely adjustable angle according to claim 4, characterized in that: The mounting joint also defines an air inlet passage, and two ends of the air inlet passage are respectively connected to the accommodating cavity and the cavity.

7. The welding torch with freely adjustable angle according to claim 1, characterized in that: The connecting piece comprises: A shooting and suction tube nut, which is threadedly connected to the end of the shooting and suction tube; A mixing pipe joint, one end of which is connected to the injection and suction pipe through the injection and suction pipe nut, and the other end is connected to the hose. The mixing pipe joint is arranged through along its axial direction and is used to connect the injection and suction pipe with the hose.

8. A welding torch with freely adjustable angle according to claim 7, characterized in that: The mixing pipe joint is composed of a first joint part and a second joint part, wherein: The first joint part is threadedly connected to the inner wall of the injection and suction tube nut, and an oblique seal is formed between the two; One end of the second joint part is sealed with the inner wall of the first joint part at an angle, and the other end is inserted into the ejection and suction pipe and fixed to the ejection and suction pipe by welding.

9. The welding torch with freely adjustable angle according to claim 1, characterized in that: The welding tip is provided with a central air outlet channel along its axial direction.

10. A welding torch with freely adjustable angle according to claim 9, characterized in that: The welding tip is also provided with a side air outlet hole penetrating through the side wall thereof.

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