CN2532371Y - Self-suction type oil-combustion welding/cutting machine - Google Patents

Abstract

The utility model relates to a welding and cutting equipment, in particular to an improvement of a welding and cutting machine using fuel oil as welding energy, which is composed of a welding and cutting gun and an oil tank. The welding and cutting gun comprises a gun head and a gun tail provided with an oxygen joint and a fuel oil joint; the lower part of the welding and cutting gun body is provided with an axial airway; the back end of the body is communicated with the oxygen joint through a regulating valve and a radial airway; an oil channel connected with the fuel oil joint is communicated with the front end of the axial airway; a segment of the oil channel near a communicating point forms a negative pressure area which can make self suction of the fuel oils; a mixed flow chamber of atomized fuel oil and the oxygen is formed in a round pipe between the axial airway and the gun head. The utility model is in relative simple structure with good effect of oil and oxygen mixing, moreover, the oil tank can avoid leakage.

Description

Self-priming fuel oil welding-cutting machine

Technical field:

The utility model relates to welding and cutting device, particularly utilizes the improvement of fuel oil as the welding-cutting machine of weldering energy.

Background technology:

Traditional welding and cutting device, as the weldering energy, its major defect one is a contaminated environment with the acetylene combustion gas, the 2nd, the operating cost height.Utilize gasoline to occur as the existing multiple scheme of the welding-cutting machine of weldering energy, but still have the imperfection part: the one, oily oxygen is blended in the burning torch head to carry out, the hybrid chamber space is little, atomizing undercompounding, need with oil, the two-tube rifle head that is communicated to of oxygen, complex structure, the cost height, such as Chinese patent 97250604.7 " gasoline---oxygen gas cutting and welding atomizer ", 99250686.7 " jet absorption type gasoline solder cutting cabinets " introduction; The 2nd, the oil mass of fuel tank shows it is in the perforate up and down of fuel tank sidewall, is communicated with the glass tube of indicating graduation, and its interface oil leakage phenomenon is general, and for these class combustibles of gasoline, seepage oil is the very big hidden danger of accident.

Summary of the invention:

It is simple relatively that the purpose of this utility model provides a kind of structure, the fuel oil welding-cutting machine of oil, oxygen good mixing effect, and its fuel tank should be avoided the seepage phenomenon in addition.

The utility model is a kind of self-priming fuel oil welding-cutting machine, is made up of solder cutting gun and fuel tank, and solder cutting gun comprises the rifle head and has the gun breech of oxygen connection, fuel joint.The solder cutting gun lower body part has axial air flue, its rear end reaches radially by control valve, and air flue is communicated with oxygen connection, the oil duct that is connected with fuel joint is communicated with axial air flue front end, near one section oil duct connectivity points constitutes negative pressuren zone, axially constitutes the mixed flow chamber of atomized fuel and oxygen in the pipe between air flue and the rifle head.The oil gas tie point is positioned at the undergauge section of axial air flue front portion.Fuel level gauge is housed above the fuel tank.

The utility model forms fluidic architecture in the solder cutting gun main body, main body all constitutes the mixed flow space of atomized fuel and oxygen to the whole pipe between the rifle head, path length, and gas, mist good mixing effect make rifle mouth mixture combustion abundant, thermal efficiency height.Compare with the prior art of rifle head fluidic architecture, omitted one of its oil, gas pipe special, structure is more simple, low cost of manufacture.Communicating pipe fuel contents gauge with fuel tank changes fuel level gauge in addition, and its interface leaves liquid level, reduced interface seepage oil accidents caused possibility.Simultaneously, because of with fuel oil, be the energy such as gasoline, kerosene etc., to compare with acetylene, cost has minimizing by a relatively large margin.

Description of drawings:

Fig. 1 is a solder cutting gun profile schematic diagram in the utility model, and Fig. 2 is fuel tank shape figure, and Fig. 3 is the structure enlarged drawing of solder cutting gun main body among Fig. 1.

The specific embodiment:

See figures.1.and.2.The solder cutting gun profile is basic identical with existing solder cutting gun: main body 1 front end is connected with rifle head 5 by oxygen hose 6, oily oxygen mixing tube 7, and 4 is the rifle mouth, and main body 1 rear end is connected with oxygen connection 2, fuel joint 3 by handle 13.

Fuel tank 10 is packed in the portable case shell 8, and the fuel tank top installs fuel level gauge 9, can open and close pipe connects 14, irritates hydraulic fluid port 11, wherein fuel level gauge 9 diverting from one use to another for commercially available automobile-use product, because it pushes up the position at fuel tank, the junction is not to be in for a long time under the liquid level, has added excellent sealing, not easy to leak oil; Pipe connects 14 and is commercially available angle valve product structure, is communicated with the fuel joint 3 of gun breech by flexible pipe during work.Cavity 12 is as the headspace that puts rifle body, flexible pipe etc. when carrying.

With reference to Fig. 3.Have oil duct 1.3 and air flue 1.7 in the solder cutting gun main body 1, pass handle 13 respectively and communicate with fuel joint 3 and oxygen connection 2, main body 1 bottom has axial air flue 1.5, and port is communicated with air flue 1.7 by control valve 1.6 thereafter.Air flue 1.5 front ends have undergauge section 1.4, oil duct 1.3 outlet sections and this undergauge Duan Youyi connectivity points 1.1.Part air flue 1.5 in the main body 1 is to be fixed together by nut 16 and main body 1 with adapter sleeve 15.Wherein oil, gas connectivity points 1.1 and negative pressuren zone 1.2 form by the gap between adapter sleeve 15 and the part 1.5.

The course of work: joint 2 is connected oxygen tank by flexible pipe, and joint 3 is connected fuel tank angle gate valve by flexible pipe and connect 14, opens oxygen tank and pipe and connects 14, and oxygen enters air flue 1.5 by air flue 1.7, control valve 1.6, and sprays to atomizing oil gas mixing tube 7 from undergauge section 1.4.Because undergauge section 1.4 effects, air-flow is sprayed with more speed, near connectivity points 1.1 oil duct produces negative pressuren zone 1.2, thereby automatically with the oily sucking-off in the fuel pipe and in company with oxygen spray, atomizing, to the interior hybrid chamber 7 ' interior mixing jet of rifle head distance, make fogging oil and oxygen form atomization gas, more abundant from the flame combustion that rifle mouth 4 sprays, the tempering phenomenon that traditional burning torch flame takes place sometimes can not take place.

Claims (3)

1, a kind of self-priming fuel oil welding-cutting machine, form by solder cutting gun and fuel tank (10), solder cutting gun comprises rifle head (5) and has oxygen connection (2), the gun breech of fuel joint (3), it is characterized in that solder cutting gun main body (1) bottom has axial air flue (1.5), its rear end reaches radially by control valve (1.6), and air flue (1.7) is communicated with oxygen connection (2), the oil duct (1.3) that is connected with fuel joint (3) is communicated with axial air flue (1.5) front end, near one section oil duct connectivity points (1.1) constitutes negative pressuren zone (1.2), axially constitutes the mixed flow chamber (7 ') of atomized fuel and oxygen in the pipe (7) between air flue (1.5) and the rifle head (5).

2, welding-cutting machine according to claim 1 is characterized in that oil gas tie point (1.1) is positioned at the undergauge section (1.4) of axial air flue front portion.

3, solder cutting gun according to claim 1 is characterized in that being equipped with above the fuel tank (10) fuel level gauge (9).

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