CN2381902Y

CN2381902Y - Improved structure of ignitor for gas welding torch

Info

Publication number: CN2381902Y
Application number: CN 99216758
Authority: CN
Inventors: 许静美
Original assignee: Individual
Current assignee: Individual
Priority date: 1999-07-16
Filing date: 1999-07-16
Publication date: 2000-06-07
Anticipated expiration: 2009-07-16

Abstract

The utility model relates to an improved structure of an igniter for a gas welding torch, which is composed of a gas supply nozzle, an igniting set, a heating chamber and melting material. The front edge of the gas supply nozzle is mutually sheathed with a connection pipe of the igniting set which is plugged on the side edge of the end of the heating chamber. When the igniting set is ignited, beehive catalyst in the heating chamber is preheated to be ignited, generated hot exhaust gas is filled in the interior of a torch body, oxygen entering form outside is blocked, and the flame ignited by the igniting set is extinguished. The utility model has the advantages that the flameless combustion effect is provided; generated heat energy is transferred to a melting material chamber, and hot melting rubber strips are melted; not only the manufacturing difficulty is reduced, but also the combustion efficiency and the heat-conducting property can be greatly raises.

Description

Gas welding gun igniter structure-improved

The utility model belongs to gas weldering device structural design field.

The heater of being seen on the market gas welding gun is directly melting stock chamber to be heated with gas combustion fire mostly at present, and reach the effect of melting heat melten gel bar, though so its rate of heat addition is fast than electric energy formula welding gun, but there is gas to expend serious and the unconspicuous problem generation of usefulness, therefore just there is the insider that ceramic material is used in the heating clamber, hope can improve its efficiency of combustion, though can improve efficiency of combustion like this, but, because flame directly roasts ceramic material, can cause the ceramic material life-span significantly to reduce, the whole rate of heat addition reduces.Therefore the inventor once proposed a kind of flameless combustion method, the usefulness that this kind method not only directly heats melting stock chamber than flame well outside, also because of no longer including the directly problem existence of barbecue of flame, and the life-span of its ceramic material is significantly improved, though it is strong that the inventor finds that when whole efficiency is tested burning usefulness can more above-mentioned flame be directly roasted formula, also dislikes deficiency and usefulness to still have in its rate of heat addition and improve the space.

The purpose of this utility model is to propose a kind of gas welding gun igniter of being made up of spray nozzle of the gas supply, fire group, heating clamber and melting stock chamber, it has not only reduced manufacture difficulty, and can significantly improve its efficiency of combustion and heat conductivility, thereby solved the existing in prior technology problem.

The technical scheme that the utility model adopted is, it is made up of a spray nozzle of the gas supply, a fire group, a heating clamber and a melting stock chamber, and wherein, the tube connector of this spray nozzle of the gas supply leading edge and fire group is bonded with each other, fire group then is that plug is located in the heating clamber, and this heating clamber inner edge place device has catalyst.

Said catalyst is a cross honeycomb catalyst, also can use the catalyst of other patterns instead according to its needs.

Advantage of the present utility model is:

1, by the using of cross honeycomb catalyst, can significantly improve its efficiency of combustion and heat conductivility:

2, when burnt gas is full of body of a gun inside, can accelerate the preheating of its melting stock chamber;

3, can reduce manufacture difficulty and reducing cost.

Fig. 1 is a three-dimensional exploded view of the present utility model.

Fig. 2 is a stereogram of the present utility model.

Fig. 3 is the three-dimensional view of fire group of the present utility model.

Fig. 4 is a partial section view of the present utility model.

Fig. 5 is a cross-section cutaway view of the present utility model.

Further specify preferred embodiment of the present utility model in conjunction with above-mentioned each accompanying drawing now.As shown in Figure 1, it discloses a kind of gas welding gun igniter 1 structure-improved, it is mainly by a spray nozzle of the gas supply 2, one fire group 3, one heating clamber 4 and a melting stock chamber 5 are formed, wherein the inlet end of spray nozzle of the gas supply 2 is one to be the adapter 21 that encircles convex, thereafter then for preventing the plunger 22 of gas leakage, the front end of this plunger 22 then is a gas spout 23, the periphery of gas spout 23 then is a double-screw bolt 24, can be sheathed mutually by this double-screw bolt 24 with the tube connector 31 of fire group 3, in this tube connector 31, back segment is respectively equipped with one for two sections and helps discharge orifice 311 and a groups of fins 312 in the form of a ring, as for fire group 3 leading portions then is to be provided with a screw hole column 313, respectively with cover air-casing tube 32, igniting sleeve 33 and igniting headstock 34 mutual fits, moreover the above-mentioned end end of covering air-casing tube 32 is provided with two perforation 321 that wear for the ignition lead 361 on fire group 3 screw hole columns 313 and the igniter 36,322, the inner edge portion of covering air-casing tube 32 then is to be provided with a locating groove 323.In addition, igniting sleeve 33 plugs are located at the above-mentioned inside of covering air-casing tube 32, and by the cooperate effect that can reach location of positional punch 333 with locating groove 323, and the end of igniting sleeve 33 also is provided with two perforation 331 that supply screw hole column 313 and ignition lead 361 to wear, 332, when igniting sleeve 33, when covering air-casing tube 32 and wearing to tube connector 31, utilisation point duration and degree of heating seat 34 is fixed, the front end of igniting headstock 34 then is respectively equipped with a consent 341 and translot 342, igniter head 35 that front and back all are the dentation moulding promptly is that plug is located on this consent 341, last heating clamber 4 is the lower edge side that are arranged at hollow melting stock chamber 5, be equiped with a cross honeycomb catalyst 41 in it and can reach the effect of unidirectional location by the effect of C type ring 43, front end as for cross honeycomb catalyst 41 then is the omnidirectional location that is provided with a plug sleeve 43 favourable these cross honeycomb catalyst 41, the leading portion periphery of this heating clamber 4 offers steam vent 44 again, see through cooperatively interacting of this steam vent 44 and cross honeycomb catalyst 41, can fast waste gas be discharged in heating clamber 4 and be coated on the periphery of the utility model gas welding gun igniter 1, phase reaches to blocking oxygen and enters in this device, to reach the aphlogistic effect of knock down the flame.

As shown in Figure 2, disclosing cross honeycomb catalyst 41 among its figure is to be installed in the heating clamber 4, the air-casing tube 32 that covers of fire group 3 then is the latter end that is sheathed on this heating clamber 4, and after heating clamber 4 heating, its heat is promptly conducted to preheating and fusion melt 51 on the melting stock chamber 5.

As shown in Figure 3, ignition lead 361 among the figure on the disclosed igniter 36 is to wear to the leading edge of igniter head 35 from the end that covers air-casing tube 32, the igniting button 362 of press points firearm 36 when gas fuel is supplied gas by spray nozzle of the gas supply 2 so can firing point duration and degree of heating 35.

As shown in Figure 4, shown in the figure is the inner edge place that the utility model gas welding gun igniter 1 is installed on the welding gun body of a gun 61, igniting button 362 when the user suppresses igniting push button 62 on the while press points firearm 36, so can light flame heat cross honeycomb catalyst 41, after steam vent 44 is discharged, promptly riddle in the body of a gun 61 when producing waste gas after the burning gradually, and be coated on igniter 1 around, so can block oxygen and enter in this igniter 1, and then knock down the flame only stays the aphlogistic effect of cross honeycomb catalyst 41 row.

As shown in Figure 5, it is a cross-section cutaway view of the present utility model, disclosed cross honeycomb catalyst 41 is to be installed in its heating clamber 5 among the figure, by eight conflicts of supporting some A and heating clamber 5 around the cross honeycomb catalyst 41, both slits promptly form a combustion space a with quick exhaust during this time, cooperate the combustion in catalyst nest hole 411 its whole efficiency of combustion and heat conductivility significantly can be improved, and the fully closely cover type of more general round catalyst is strong.

Claims

1, a kind of gas welding gun igniter structure-improved, it mainly is made up of a spray nozzle of the gas supply, a fire group, a heating clamber and a melting stock chamber, it is characterized in that: this spray nozzle of the gas supply leading edge is that the tube connector with fire group is bonded with each other, fire group then is that plug is located in the heating clamber, and this heating clamber inner edge place device has catalyst.

2, by the said gas welding gun of claim 1 igniter structure-improved, it is characterized in that said catalyst is a cross honeycomb catalyst.