Anti-backfire cutting torch

Abstract

The invention discloses an anti-backfire cutting torch, and belongs to the technical field of cutting tools. The anti-backfire cutting torch comprises a cutting torch front part and a mixing pipe. Thecutting torch front part comprises a combustion-supporting oxygen port formed in the side, the mixing pipe is inserted into the combustion-supporting oxygen port, the inside of the mixing pipe is hollow, a circle of mixing through holes are formed in the circumferential surface at equal intervals, and a space for gas mixing is reserved between the head of the insertion end of the mixing pipe andthe combustion-supporting oxygen port. The mixing pipe is arranged at the cutting torch front part, one circle of mixing through holes are formed in the circumferential surface of the mixing pipe at equal intervals, the mixing pipe communicates with an acetylene pipe, during actual work, acetylene enters the acetylene pipe and enters the mixing pipe through the mixing through holes, and is mixed with combustion-supporting oxygen in the mixing pipe, so that gas mixing is only carried out at the cutting torch front part in the whole work process, even if backfire is caused by misoperation of anoperator, the mixing pipe can decompose spark, and the anti-backfire effect is achieved.

Description

technical field [0001] The invention belongs to the technical field of cutting tools, and in particular relates to a flashback-resistant cutting torch. Background technique [0002] Cutting torches are common metal cutting tools. Most of the current injection-suction welding torches are composed of the front part of the cutting torch, the middle part of the cutting torch, the rear part of the cutting torch and related components. device, and usually adopts the structure of long-distance transmission after mixing oxygen and gas. Generally, after the cutting is completed and the fire is turned off, due to no protective measures, it is easy for sparks to enter the oxygen cylinder or acetylene cylinder through the pipeline, causing the gas cylinder to explode. , And then cause personal injury, there is easy tempering, the shortcoming that safety is not high. [0003] To sum up, in order to solve the shortcomings of the existing cutting torch structure, it is necessary to design...

AI Technical Summary

Problems solved by technology

[0002] Cutting torches are common metal cutting tools. Most of the current injection-suction welding torches are composed of the front part of the cutting torch, the middle part of the cutting torch, the rear part of the cutting torch and related components. device, and usually adopts the structure of long-distance transmission after mixing oxygen and gas. Generally, after the cutting is completed and the fire is turned off, due to no protective measures, it is easy for sparks to enter the oxygen cylinder or acetylene cylinder through the pipeline, causing the gas cylinder to explode. , and thus cause personal injury, there are disadvantages of easy tempering and low safety

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