CN2421526Y - Cutting torch - Google Patents

Abstract

The utility model discloses a cutting torch, which is additionally provided with an ignition cavity and an electric lighter near a mixing cavity on the basis of the structure of the existing cutting torch. A gas inlet of the ignition cavity is connected with an acetylene input tube, and a gas outlet of the ignition chamber is connected with an ignition nozzle nearby a cutting torch head by an ignition tube. The utility model can artificially control the electric lighter to accomplish automatic ignition, and overcome the defect that an operator closely and artificially ignites, the operation is difficult, and the danger is easy to generate. The utility model can be used in a gas cutting field.

Description

A kind of cutting torch

The utility model relates to a kind of gas cutting equipment.

Gas cutting is to utilize the oxy-acetylene neutral flame that the metal that is cut is preheating to ignition temperature, pass to the hyperbaric oxygen air-flow in preheating place then, metal is burnt in pure oxygen emit a large amount of heat, and borrow the pressure of hyperbaric oxygen air-flow that the oxide that incision forms is blown away, bulk metal is promptly severed, it in use, at first manually light or lodge in other burning things which may cause a fire disaster and ignite, because when igniting, gas pressure is higher in the torch, so manually light danger close, if transfer the cutting torch internal pressure very lowly, be difficult for again igniting, like this, igniting and taking a lot of trouble of common cutting torch, dangerous again.

The purpose of this utility model is at the deficiencies in the prior art, and a kind of cutting torch with self-ignition function is provided.

The purpose of this utility model is achieved in that a kind of cutting torch by torch head, into and out of oxygen and acetylene tracheae, by-pass valve control, mixing chamber forms, and it is characterized in that, in the other igniting chamber that also is provided with of mixing chamber, the igniting chamber links to each other with the acetylene input pipe by the acetylene conduit.Igniting is provided with piston in the chamber, there is not back-moving spring between piston and igniting chamber, piston rod stretch out the igniting chamber suitable for reading outside, piston rod and piston junction periphery are provided with Gask-O-Seal, locating directly of sealing gasket less than piston external diameter, greater than igniting chamber external diameter suitable for reading, the piston edge has blow vent, and lighting a fire, the chamber is suitable for reading to link to each other with ignitron.Be provided with ignition tip in the ignitron termination near the cutting torch place, be provided with fulcrum in the hybrid chamber outer upper ends; Depression bar one end and fulcrum hinge joint, in the other end and piezoelectric bar hinge joint near depression bar, depression bar and piston rod contact site are provided with groove, have recessed road in the hybrid chamber outside, be fixed with the piezoelectricity device in the recessed road, the movable projection of piezoelectricity device contacts with piezoelectric bar, and the piezoelectricity utmost point extends along ignitron, electrode tip points of proximity nozzles end.

Because the utility model has replaced artificial near-end igniting with the ignition tip igniting, makes the use of cutting torch have more security, and easy to operate, is the renewal product of existing cutting torch.

Fig. 1 is the cutting torch schematic diagram.

Fig. 2 is igniting generating means structural representation.

Below in conjunction with accompanying drawing the utility model is described in further detail, cutting torch is by torch head, into and out of oxygen and acetylene tracheae, by-pass valve control, mixing chamber forms, and it is characterized in that, in the other igniting chamber 1 that also is provided with of mixing chamber, igniting chamber 1 links to each other with acetylene input pipe 6 by acetylene conduit 10.Igniting is provided with piston 15 in the chamber 1, piston 15 and 1 in chamber of igniting are provided with back-moving spring 12, piston rod 18 stretch out igniting chamber 1 suitable for reading outside, piston rod 18 is provided with Gask-O-Seal 14 with piston 15 junction peripheries, the external diameter of sealing gasket 14 is less than piston 15 external diameters, greater than igniting chamber external diameter suitable for reading, piston 15 edges have blow vent, and igniting chamber 1 is suitable for reading to link to each other with ignitron 13.Be provided with ignition tip 20 in ignitron 13 terminations near the cutting torch place, be provided with fulcrum 17 in the hybrid chamber outer upper ends; Depression bar 2 one ends and fulcrum 17 hinge joints, in the other end and piezoelectric bar 3 hinge joints near depression bar 2, depression bar 2 is provided with groove with piston rod 18 contact sites, have recessed road in the hybrid chamber outside, be fixed with piezoelectricity device 8 in the recessed road, the movable projection 9 of piezoelectricity device contacts with piezoelectric bar 3, and piezoelectric electrode 11 is extended electrode tip 19 points of proximity nozzles 20 ends along ignitron 13.Its operating process is, behind acetylene input pipe 6, oxygen input tube 5 connection gases, press down-pressed pole 2, depression bar 2 drives piston rod 18, piezoelectric bar 3 moves down, it is suitable for reading that sealing gasket 14 leaves igniting chamber 1, lose sealing function, acetylene gas enters acetylene ignitron 13 through ignition tip 20 outflows along the passage at piston 15 edges, while presses projection 9 owing to piezoelectric bar 3 moves down and moves down, behind certain position, because piezoelectricity device 8 ectosome inclined-planes get out piezoelectric bar 3, projection 9 returns, and finishes the piezoelectricity action.Electrode tip 11 sends electric spark to ignition tip 20 ends and finishes igniting action, unclamp depression bar 2 after, back-moving spring 12 promotes to move on pistons 15 and the piston rod 18, sealing gasket 14 chamber 1 sealing suitable for reading of will light a fire, piston rod 18 promotion depression bars 2, piezoelectric bar 3 reset simultaneously.As a kind of improvement of the present utility model, can outside depression bar 2, set up handguard 4 with anti-misoperation, also can establish stage clip at piezoelectric bar 3 places, well contact with projection to guarantee piezoelectric bar.

Claims (1)

1, a kind of cutting torch, by torch head, advance, go out oxygen and acetylene tracheae, by-pass valve control, mixing chamber forms, it is characterized in that, in the other igniting chamber (1) that also is provided with of mixing chamber, igniting chamber (1) links to each other with acetylene input pipe (6) by acetylene conduit (10), be provided with piston (15) in the igniting chamber (1), be provided with back-moving spring (12) between piston (15) and igniting chamber (1), piston rod (18) stretch out the igniting chamber suitable for reading outside, piston rod (18) is provided with sealing gasket (14) with piston (15) junction periphery, the external diameter of sealing gasket (14) is less than piston (15) external diameter, greater than igniting chamber external diameter suitable for reading, piston (15) edge has blow vent, lighting a fire, the chamber is suitable for reading to link to each other with ignitron (13), be provided with ignition tip (20) in ignitron (13) termination near the cutting torch place, be provided with fulcrum (17) in the hybrid chamber outer upper ends, depression bar (2) one ends and fulcrum (17) hinge joint, in the other end and piezoelectric bar (3) hinge joint near depression bar, depression bar (2) is provided with groove with piston rod (18) contact site, have recessed road in the hybrid chamber outside, be fixed with piezoelectricity device (8) in the recessed road, the movable projection of piezoelectricity device (9) contacts with piezoelectric bar (3), piezoelectric electrode (11) is extended along ignitron (13), electrode tip (19) points of proximity nozzles end.

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