CN2418360Y

CN2418360Y - Automatic-ignation welding-cutting torch

Info

Publication number: CN2418360Y
Application number: CN 00208648
Authority: CN
Inventors: 阎纪钢
Original assignee: Individual
Current assignee: Individual
Priority date: 2000-04-28
Filing date: 2000-04-28
Publication date: 2001-02-07
Anticipated expiration: 2010-04-28

Abstract

The utility model discloses an automatic-ignation welding and cutting torch, comprises a cutting torch and an automatic ignition device which is arranged at the cutting torch. An ignition switch button is arranged in a sinking slot of a handle, and a piezoelectric ceramic negative pole on the ignition switch button is connected with an oxygen pipe and an acetylene pipe and is communicated with an inner cutting nozzle. A piezoelectric ceramic positive pole is connected with an electricity conducting rod and is communicated with an electricity conducting ring on the cutting nozzle and an outer cutting nozzle. Spark is electrically generated in a spout gap of the cutting nozzle to ignite mixed gas to be combusted. The utility model has the advantages of wind prevention, hand combusting prevention, convenience and quickness, and the utility model is not limited by external environment. The utility model is especially suitable for on-site repair operation at field, altitudes and small spaces.

Description

Automatic ignition welding and cutting torch

The utility model belongs to a kind of preheat flame cutting metal thing welding torch that utilizes oxygen and acetylene to mix, and is a kind of automatic ignition welding and cutting torch specifically.

Existing welding torch all is to light combustion gas by means of external burning things which may cause a fire disaster in the operation use, its burning things which may cause a fire disaster such as lighter, match and ignition etc., but problem maximum in ignition process just is to use inconvenience, operate dangerous, the service efficiency of kindling material is low, and seems more outstanding for the problems such as field maintenance operation of field, high-altitude and small space.

The purpose of this utility model is for solving the problem that above-mentioned technology exists, and a kind of welding torch that automatic ignition device is set on former welding torch body is provided, and has windproof, the anti-effect of burning hand, not being subjected to external environment restriction and long service life.

For achieving the above object, the solution of present technique is finished like this: automatic ignition welding and cutting torch, an end that comprises the cutting torch mid-section body has cutting oxygen pipe respectively and injecting tube is connected to the head body that has cutting torch, oxygen hose connector and acetylene rubber hose joint that the other end utilizes handle to be drawn respectively by inside, and in the preformed groove automatic ignition device is set by handle and between oxygen hose and acetylene hose, by the lead that the automatic ignition device positive pole is drawn, be connected in set conducting rod in the insulator that is fixed on the mid-section body and be connected on the conducting ring that the cutting torch insulation sleeve has and link to each other with outer cutting torch; The negative pole that oxygen hose and the injecting tube of interior cutting torch by head body and connection is connected to automatic ignition device constitutes.

The characteristics that the utility model has compared to existing technology are: automatic ignition welding and cutting torch, be to utilize the handle place of original welding torch that igniter is set, be connected with the conducting ring of forming cutting torch by outer cutting torch and interior cutting torch by conducting rod, by the insulation body is housed on the cutting torch, make inside and outside cutting torch body constitute positive and negative electrode, by gap location discharge generation spark at the cutting torch spout, light the oxygen, the acetylene gaseous mixture that modulate, finish ignition cycle one time.Automatically it is easy to operate, safe and reliable that the igniting cutting torch has use, also has windproof, anti-burning hand, service life simultaneously about more than 50,000 times, avoided the operative employee to carry the trouble of kindling material, be specially adapted to the field operation of field, high-altitude and small space, have higher popularizing value.

Embodiment is further described below in conjunction with accompanying drawing.

Fig. 1 is the automatic ignition welding and cutting torch structural representation.

Fig. 2 is Fig. 1 automatic ignition device structural representation.

Fig. 3 is insulation cutting torch topology view.

Fig. 4 is another embodiment of Fig. 2 automatic ignition device.

Fig. 5,6,7 is another embodiment schematic diagram of Fig. 1.

Fig. 8 is the topology view of head body and cutting torch.

By Fig. 1,2, shown in 3, automatic ignition welding and cutting torch, it comprises that cutting oxygen pipe 5 and injecting tube 6 that cutting torch mid-section body 8 and one end are equipped with respectively insert the head body 3 that has cutting torch 1 side by side, the other end of mid-section body 8 is installed one handle 10, the inside of handle 10 is provided with oxygen hose 12 and the acetylene hose 13 that is communicated with mid-section body 8, form by oxygen hose connector 14 and acetylene rubber hose joint 15 that the afterbody of handle 10 is drawn respectively, and in the preformed groove of a side of handle 10, automatic ignition device 11 is set, make automatic ignition device 11 between oxygen hose 12 and acetylene and 13, automatic ignition device 11 is ends that the leads 9 that adopt piezoelectric ceramics anodal 22 as shown in Figure 2 to link to each other are connected the conducting rod 4 that insulator 7 bottoms that are installed on mid-section body 8 are provided with, being connected to cutting torch 1 by the other end of conducting rod 4 has conducting ring 2 is installed on the insulation sleeve 30, see Fig. 3, constitute anodal conductor with outer cutting torch 28; Interior cutting torch 29 is connected to the cathode conductor of formation on the phosphorus bronze sheet 27 that automatic ignition device 11 piezoelectric ceramics negative poles 26 ends are connected respectively by head body 3 and the oxygen hose 5 that go up to insert thereof and injecting tube 6, at the cutting torch spout place of interior cutting torch 29 and outer cutting torch 28 compositions, make and to leave the gap between two bodies and be used for the discharge generation spark.

Automatic ignition device shows the piezoelectric type ignition structure by Fig. 2.It mainly adopts a fixed cover 20, one end of fixed cover 20 be connected with piezoelectric ceramics negative pole 26 and on have the symmetry phosphorus bronze sheet 27 as cathode conductor, be used to be connected oxygen hose 12 and acetylene hose 13, side by fixed cover 20 is provided with piezoelectric ceramics positive pole 22, the lead 9 that is used for connection layout 1, and the axial symmetry at fixed cover 20 has chute 23, stage clip 25 and the movable sleeve 17 that has inclined-plane chute 19 are housed respectively in its fixed cover 20, weight 24 is set in the movable sleeve 17, the other end of corresponding weight 24 is equipped with weight stage clip 18, pass chute 23 respectively by weight pin 21, weight 24 and movable sleeve inclined-plane chute 19, the other end correspondence of movable sleeve 17 are connected in release knob 16 and constitute.When pull switch button 16, drive movable sleeve 17 displacements, to push in the curved groove of weight pin 21 by latched position fixedly in the chute 23 by movable sleeve inclined-plane chute 19, make weight 24 bump piezoelectric ceramics negative poles 26, the high pressure that is produced flows out via piezoelectric ceramics anodal 22.

The insulation cutting torch shows overall structure by Fig. 3.Cutting torch 1 is made up of interior cutting torch 29 and outer cutting torch 28.It is with cutting torch head body 3 install hollow in the shoulder bottom, end of cutting torch 29 be provided with insulation sleeve 30, and on insulation sleeve 30, install respectively conducting ring 2 and outside cutting torch 28, its cutting torch 28 tops, China and foreign countries should contact with conducting ring 2 and connect into same electric conductor, make the interior cutting torch 29 at cutting torch spout place leave discharging gap with outer cutting torch 28.

Fig. 4 shows another embodiment of automatic ignition device.It is the pulse firing form, is terminated at the emitter stage of triode BG by K switch and one, and colelctor electrode connects transformer T ₁An elementary end, base stage is passed through resistance R ₁Be connected on transformer T ₁On, the other end of K switch is connected to T by dc source 1.5V ₁The other end, transformer T ₁Output respectively by diode D ₁Be connected transformer T with controllable silicon ZD ₂An end, transformer T ₁, T ₂Common port by capacitor C ₁With diode D ₂Be connected on controllable silicon ZD one contact, its common port passes through resistance R ₃, R ₂And capacitor C ₂Be connected to transformer T ₂The other end, by transformer T ₂Output, be connected to the cutting oxygen pipe 5 of cutting torch and acetylene hose 6 and interior cutting torch 29 respectively as negative pole end, positive terminal is connected to the pulsed automatic ignition device that outer cutting torch 28 constitutes by conducting rod 4 and conducting ring 2.

Welding torch shown in Fig. 5, it is to have done corresponding variation on Fig. 1 version, an end that comprises cutting torch mid-section body 8 equally has cutting oxygen pipe 5 respectively and injecting tube 6 is connected to head body 3, the conducting rod 4 of hard-wired insulator 7 and interior device on the injecting tube 6 of mid-section body 8, be connected to automatic ignition device 11 piezoelectric ceramics positive poles by lead 9, the piezoelectric ceramics negative pole is connected on oxygen hose 14 and the acetylene hose 15, by head body 3 and the whole formation of cutting torch negative pole.Different is that conducting rod 4 is to have adopted the electric conductor with certain elastomeric material to make with Fig. 1, and is added with insulator 31 in the end, and has discharge head 32, and cutting torch adopts existing annular cutting torch, quincunx cutting torch, need not select cutting torch as described in Figure 1 for use.During off working state, conducting rod 4 can be put between cutting torch and the head body 3, during the work igniting, depress conducting rod 4, make the insulator 31 of its conducting rod 4 be overlapped on cutting torch spout place, and leave the gap with discharge head 32.When igniting finishes, move conducting rod 4 and promptly reset to the original place.

Fig. 6 shows cutting torch automatic ignition device another embodiment different with Fig. 1 installation site.It is that automatic ignition device 11 is installed in the insulator 7, and is fixed on by insulator 7 on the cutting oxygen pipe 5 and injecting tube 6 of mid-section body 8 front ends, and the same Fig. 1 of other version, Fig. 5 are identical.

Fig. 7, Fig. 8 is another version of automatic ignition welding and cutting torch, it has cutting oxygen pipe 5 and injecting tube 6 respectively by mid-section body 8 one ends equally, in the preformed groove of the handle 10 of the other end automatic ignition device 11 is set, positive wire 9 on it, from the through hole 35 of a side of mid-section body 8, pass and be connected in cutting oxygen pipe 5 and have insulation sleeve 34 front ends, insulation sleeve 34 parts are installed in the mid-section body 8, the other end of cutting oxygen pipe 5 is installed in the metal center tracheae 37 that is provided with in the insulation sleeve 36 of head body 3, and connection is connected to interior cutting torch 29 formation cathode conductors, outer cutting torch 28 is installed on the insulation sleeve 30, connects head body 3 by cutting torch nut 38 and is connected to the negative pole electric conductor that injecting tube 6 constitutes.

Claims

1, automatic ignition welding and cutting torch, an end that comprises mid-section body has cutting oxygen pipe respectively and injecting tube is connected to the head main body that has cutting torch, oxygen hose connector and acetylene rubber hose joint that the other end utilizes handle to be drawn respectively by inside, it is characterized in that, it by handle and be positioned at oxygen hose (12) and acetylene hose (13) between preformed groove automatic ignition device (11) is set, the lead (9) of drawing by automatic ignition device (11) positive pole, the conducting rod (4) that is connected in device in the insulator (7) that is fixed on the mid-section body (8) is connected on the conducting ring (2) that cutting torch (1) insulation sleeve (30) has, and links to each other with outer cutting torch (18); Interior cutting torch (17) constitutes by the oxygen hose (5) of head body (3) and connection and the negative pole that injecting tube (6) is connected to automatic ignition device (11).

2, by the described automatic ignition welding and cutting torch of claim 1, it is characterized in that, described automatic ignition device is provided with piezoelectric ceramics positive pole (22) by fixed cover (20) one ends, fixed cover (20) axially has chute (23), be respectively equipped with stage clip (25) in it and have the movable sleeve (17) of inclined-plane chute (22), weight (24) is set in the movable sleeve (17), the other end of corresponding weight pin (24) is equipped with weight stage clip (18) and passes fixed cover chute (23) respectively by weight pin (21), weight (24) and inclined-plane chute (19), the other end of movable sleeve (17) constitutes corresponding to release knob (16).

3, by the described automatic ignition welding and cutting torch of claim 1, it is characterized in that, described cutting torch is made up of interior cutting torch (29) and outer cutting torch (28), wherein interior cutting torch (29) inserts outside that the abutting end shoulder of cutting torch (28) has insulation sleeve (30), also is provided with conducting ring (2) on its insulation sleeve (30) and links to each other with outer cutting torch (28).

By claim 1 or 2 described automatic ignition welding and cutting torch, it is characterized in that 4, described automatic ignition device passes through triode BG and resistance R by K switch one end ₁Meet transformer T ₁, the other end is connected to T by dc source ₁Elementary, by T ₁Public termination T ₂One end, T ₁Output by diode D ₁, controllable silicon ZD is to T ₂One end, on the public point respectively by capacitor C ₁, diode D ₂Be connected on controllable silicon ZD one contact resistance R ₃, R ₂And capacitor C ₂Be connected to T ₂The other end, T ₂Output be the pulsed discharge end.

5, by the described automatic ignition welding and cutting torch of claim 1, it is characterized in that, described conducting rod (4) is a movable end corresponding to cutting torch (1) one end, and its end conducting rod (4) is provided with insulator (31) and discharge head (32), utilizes insulator (31) to be overlapped on cutting torch (1) one side.

6, by the described automatic ignition welding and cutting torch of claim 1, it is characterized in that, described automatic ignition device (11) can be installed in the front end of cutting torch mid-section body (8), be positioned between cutting oxygen pipe (5) and the injecting tube (6), automatic ignition device (11) piezoelectric ceramics negative pole is connected on cutting oxygen pipe (5) and the injecting tube (6).

7, by the described automatic ignition welding and cutting torch of claim 1, it is characterized in that, the lead (9) of described automatic ignition device (11), can be connected to insulation sleeve (34) front end of cutting oxygen pipe (5) by the through hole (35) on the cutting torch mid-section body (8), cutting oxygen pipe (5) front end is installed on the center tracheae (37) in the insulation sleeve (36) of head body (3), and form anodal with interior cutting torch (17) conducting, negative pole end is by injecting tube (6) and head body (3), form by the fixedly connected outer cutting torch of nut (38) (18), and insulation sleeve (30) is housed at the abutting end of interior cutting torch (17) and head body (3).