Injection and suction type diesel welding and cutting machine

Abstract

The utility model relates to an injection type diesel welding and cutting machine which comprises an oil tank and an oil pipe arranged on the oil tank, the oil tank is provided with a welding and cutting gun through the oil pipe, the welding and cutting gun is provided with a welding and cutting nozzle, and the welding and cutting nozzle comprises an inner core and an outer sleeve. The pressing block is arranged between the inner core and the outer sleeve; the one-way valve is arranged in the inner core; the flame spraying opening is formed in the lower end of the outer sleeve, a one-way valve is arranged in the oxygen inlet channel, the situation that oxygen and diesel oil flow backwards into the oxygen bottle during gas return or oil return is effectively prevented, the atomized diesel oil and the oxygen have a more sufficient mixing space at the flame spraying opening through the flame spraying opening, more sufficient blending can be achieved, and the oxygen and the oxygen can be mixed more sufficiently. Combustible mixed gas is formed more uniformly, so that more stable and efficient high-temperature flames are generated, the welding and cutting efficiency is improved, stable connection of the inner core and the outer sleeve is achieved by clamping the limiting hook on the pressing block into the limiting groove formed in the upper end of the outer sleeve, and the pressing block is relatively convenient to operate through the elasticity of the spring.

Description

Technical Field

[0001] This utility model belongs to the field of welding and cutting technology, and specifically relates to a jet suction type diesel welding and cutting machine. Background Technology

[0002] A jet-suction diesel welding and cutting machine is a welding and cutting device that uses diesel fuel and operates based on the jet-suction principle. It mainly consists of a fuel tank, fuel pump, fuel lines, and a jet-suction welding and cutting nozzle. During operation, the fuel pump draws diesel fuel from the fuel tank and delivers it to the jet-suction welding and cutting nozzle through the fuel lines. In the torch, the diesel fuel is sprayed into a mist and mixed with oxygen. The jet-suction action ensures that the diesel fuel and oxygen are fully mixed to form a combustible mixture, which is then ignited to produce a high-temperature flame for welding or cutting metal materials. It features high safety, low cost, and wide applicability, and is widely used in machinery manufacturing, construction, and automotive repair industries.

[0003] Currently, jet-suction diesel welding and cutting machines face a series of problems in practical use. Firstly, the lack of sufficient mixing space between atomized diesel and oxygen prevents them from fully blending. Secondly, if backflow or oil flow occurs during oxygen flow, oxygen and diesel will flow back into the oxygen cylinder, easily causing a backfire and explosion, seriously endangering the lives of operators and the working environment. Furthermore, the connection between the inner core and outer sleeve of the welding / cutting nozzle is difficult to balance between stability and ease of connection, causing numerous inconveniences for users during actual operation and maintenance. Utility Model Content

[0004] The purpose of this invention is to provide a portable and stable-burning jet-suction diesel welding and cutting machine in order to solve the above problems.

[0005] This utility model achieves the above objectives through the following technical solutions:

[0006] A jet-suction type diesel welding and cutting machine includes an oil tank and an oil pipe installed on the oil tank. A welding and cutting gun is installed on the oil tank through the oil pipe. A welding and cutting nozzle is installed on the welding and cutting gun. The welding and cutting nozzle includes an inner core and an outer sleeve.

[0007] It also includes:

[0008] Pressing block, the pressing block being disposed between the inner core and the outer shell;

[0009] One-way valve, wherein the one-way valve is disposed within the inner core;

[0010] The flame nozzle is located at the lower end of the outer casing.

[0011] As a further optimization of this utility model, the inner core has an inclined surface, the lower end of the inner core has a plum blossom groove, and the outer sleeve is fitted onto the inner core.

[0012] As a further optimization of this utility model, an oxygen inlet channel is provided on the inner core, a one-way valve is provided in the oxygen inlet channel, an oil inlet channel is provided on the inner core, and an inclined surface is provided below the oil inlet channel.

[0013] As a further optimization of this utility model, the outer casing is provided with an oil back groove, which is connected to the plum blossom groove.

[0014] As a further optimization of this utility model, a certain gap is left between the outer jacket and the inner core, and this gap is connected to the anti-oil groove.

[0015] As a further optimization of this utility model, a spring is provided between the pressing block and the inner core, a limiting hook is provided on the pressing block, the limiting hook is rounded, and a limiting groove is provided at the upper end of the outer sleeve, the limiting hook can be embedded in the limiting groove.

[0016] The beneficial effects of this utility model are as follows:

[0017] 1. Unlike existing technologies, this design incorporates a one-way valve in the oxygen inlet channel during actual use. This effectively prevents oxygen and diesel fuel from flowing back into the oxygen cylinder during gas or oil return, significantly reducing the risk of backfire and explosion, and ensuring the safety of operators and the working environment.

[0018] 2. Unlike existing technologies, in actual use, diesel fuel is atomized in the plum blossom groove and then injected into the flame nozzle. At the same time, oxygen also reaches the flame nozzle through a one-way valve. This design allows for a more thorough mixing space between the atomized diesel fuel and oxygen at the flame nozzle, enabling more complete fusion and a more uniform formation of the combustible mixture. This results in a more stable and efficient high-temperature flame, improving the quality and efficiency of welding or cutting operations.

[0019] 3. Unlike existing technologies, in actual use, the outer sleeve is fitted onto the inner core, and the retaining hook on the pressing block engages with the retaining groove at the top of the outer sleeve, achieving a secure connection between the inner core and the outer sleeve. Furthermore, a spring is installed between the pressing block and the inner core. While ensuring connection stability, the spring's elasticity makes the pressing block relatively easy to operate, facilitating the connection and disassembly of the inner core and outer sleeve during actual operation and maintenance. This effectively balances connection convenience and stability, providing users with a better user experience. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0021] Figure 2 This is a schematic diagram of the exploded structure of the welding and cutting nozzle of this utility model;

[0022] Figure 3 This is a partial cross-sectional structural diagram of the welding and cutting nozzle of this utility model;

[0023] Figure 4 This is a utility model Figure 3 Enlarged structural diagram at point A in the middle.

[0024] In the diagram: 1. Oil tank; 2. Oil pipe; 3. Welding torch; 4. Welding nozzle; 41. Inner core; 42. Outer jacket; 43. Inclined surface; 44. Plum blossom groove; 5. Oxygen inlet channel; 6. Oil inlet channel; 7. Backflow groove; 8. Flame nozzle; 9. Pressing block; 91. Spring; 92. Limiting hook; 10. Limiting groove; 11. Check valve. Detailed Implementation

[0025] The present application will now be described in further detail with reference to the accompanying drawings. It should be noted that the following specific embodiments are only used to further illustrate the present application and should not be construed as limiting the scope of protection of the present application. Those skilled in the art can make some non-essential improvements and adjustments to the present application based on the above application content.

[0026] Example 1

[0027] like Figure 1 - Figure 4 As shown, a jet-suction type diesel welding and cutting machine includes an oil tank 1 and an oil pipe 2 installed on the oil tank 1. A welding and cutting gun 3 is installed on the oil tank 1 through the oil pipe 2. A welding and cutting nozzle 4 is installed on the welding and cutting gun 3. The welding and cutting nozzle 4 includes an inner core 41 and an outer sleeve 42.

[0028] It also includes:

[0029] Pressing block 9 is disposed between inner core 41 and outer sleeve 42;

[0030] One-way valve 11, which is disposed inside the inner core 41;

[0031] Flame nozzle 8 is located at the lower end of the outer jacket 42.

[0032] The inner core 41 has an inclined surface 43, which increases the efficiency of diesel fuel flow and allows it to flow into the backflow groove 7 in a more suitable state. The lower end of the inner core 41 has a plum blossom groove 44, and the outer sleeve 42 is fitted onto the inner core 41.

[0033] The inner core 41 has an oxygen inlet channel 5, and a one-way valve 11 is installed in the oxygen inlet channel 5 to effectively prevent oxygen and diesel from flowing back into the oxygen cylinder during gas return or oil return. The inner core 41 has an oil inlet channel 6, and the inclined surface 43 is located below the oil inlet channel 6.

[0034] The outer casing 42 is provided with an oil reversing groove 7, which is connected to the plum blossom groove 44. The oil reversing groove 7 allows the flame to preheat the diesel fuel inside.

[0035] A certain gap is left between the outer jacket 42 and the inner core 41, and this gap is connected to the back oil groove 7.

[0036] A spring 91 is provided between the pressing block 9 and the inner core 41. A limiting hook 92 is provided on the pressing block 9. The limiting hook 92 is rounded. When the inner core 41 is connected to the outer sleeve 42, no pressing is required. A limiting groove 10 is provided at the upper end of the outer sleeve 42. The limiting hook 92 can be inserted into the limiting groove 10. After the limiting hook 92 is inserted into the limiting groove 10, it can provide a strong connection force, ensuring that the inner core 41 and the outer sleeve 42 remain tightly connected during long-term use and will not loosen due to vibration, high temperature or other factors.

[0037] It should be noted that when the jet-suction diesel welding and cutting machine is working, the outer sleeve 42 is first fitted onto the inner core 41, and the inner core 41 and outer sleeve 42 are secured together by the limiting hook 92 into the limiting groove 10. Then, the oil tank 1 is started, and the diesel fuel in the tank is transported to the welding and cutting torch 3 via the oil pipe 2. The diesel fuel flows through the oil inlet channel 6 to the inclined surface 43, and then flows through the gap between the inner core 41 and the outer sleeve 42 into the back oil groove 7 until the back oil groove 7 is full. Afterwards, the diesel fuel enters the plum blossom groove 44, where it is atomized, and then sprayed onto the flame nozzle 8. Simultaneously, oxygen, after passing through the one-way valve 11 in the oxygen inlet channel 5, also reaches the flame nozzle 8. Here, the atomized diesel fuel and oxygen are thoroughly mixed, and once ignited, the flame is ejected from the flame nozzle 8 and continues to burn.

[0038] The embodiments described above are merely examples of several implementations of this utility model, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of this utility model patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these modifications and improvements all fall within the protection scope of this utility model.

Claims

1. A diesel welding and cutting machine of the injection type, comprising a tank (1) and a hose (2) arranged on the tank (1), the tank (1) being provided with a welding and cutting torch (3) through the hose (2), characterized in that: The welding and cutting torch (3) is provided with a welding and cutting nozzle (4), which comprises an inner core (41) and an outer sleeve (42); Further comprising: A pressing block (9) is arranged between the inner core (41) and the outer sleeve (42); A one-way valve (11) is arranged in the inner core (41); A flame spout (8) is arranged at the lower end of the outer sleeve (42).

2. A unit as claimed in claim 1, wherein: An inclined surface (43) is arranged on the inner core (41), and a quincunx groove (44) is arranged at the lower end of the inner core (41), and the outer sleeve (42) is sleeved on the inner core (41).

3. A unit as claimed in claim 2, wherein: An oxygen inlet channel (5) is arranged on the inner core (41), the one-way valve (11) is arranged in the oxygen inlet channel (5), an oil inlet channel (6) is arranged on the inner core (41), and the inclined surface (43) is arranged below the oil inlet channel (6).

4. A unit as claimed in claim 2 wherein: An oil return groove (7) is arranged on the outer sleeve (42) and connected with the quincunx groove (44).

5. A unit as claimed in claim 4, wherein: A gap is left between the outer sleeve (42) and the inner core (41), and the gap is connected with the oil return groove (7).

6. A unit diesel welding and cutting machine as claimed in claim 1 wherein: A spring (91) is arranged between the pressing block (9) and the inner core (41), a limiting hook (92) is arranged on the pressing block (9), the limiting hook (92) is round, a limiting groove (10) is arranged at the upper end of the outer sleeve (42), and the limiting hook (92) can be embedded in the limiting groove (10).

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