CN203578975U - Gas brazing welding gun - Google Patents
Gas brazing welding gun Download PDFInfo
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- CN203578975U CN203578975U CN201320692085.5U CN201320692085U CN203578975U CN 203578975 U CN203578975 U CN 203578975U CN 201320692085 U CN201320692085 U CN 201320692085U CN 203578975 U CN203578975 U CN 203578975U
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- welding gun
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- brazing welding
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Abstract
The utility model relates to a gas brazing welding gun which is formed by sequentially connecting a decompression valve assembly, an ignition assembly, a switch lock assembly, an adjusting valve assembly, an air mixer, a gun pipe and a gun head. An ignition line is connected with a piezoelectric igniter through a rapid connector, a sliding groove is formed in an ignition button to be matched with a lock head and comprises a vertical groove and a horizontal groove, the top end of the vertical groove is connected with the horizontal groove, a locating hole is formed in the bottom of the vertical groove, and a locking hole is formed in the outer side of the horizontal groove. A piston and a decompression spring in the decompression valve assembly are installed in a cylindrical stainless steel stamping shell with the wall thickness equal to 0.5 mm. The gas brazing welding gun integrates the functions of decompression, pressure regulating, rapid ignition, burning locking and the like, and is compact in structure and small and exquisite in size; the machining difficulty is reduced, the production cost is reduced, standardization on accessories is carried out, and the gas brazing welding gun is convenient to replace.
Description
Technical field
The utility model relates to a kind of welding gun, particularly a kind of gas brazing welding gun.
Background technology
I am engaged in research and development and the production field of Mini-type portable gas brazing welding gun for a long time, for different environments for use and requirement, design multiple split type and integrated air brazing welding gun.
Integrated air brazing welding gun, as the patent No. 201010272691.2 " portable gas brazing welding gun ", is comprised of pressure-reducing valve, valve inside, control valve, air mixer, igniter, barrel assembly, and sincere button is installed on igniter.This product is effective to flame control, has the several functions such as pressure regulation and anti-backfire, easy to use, be easy to carry, but complex structure, part is many, and the required precision of processing is high, and therefore cost is higher.
In this product, pressure regulator valve is coordinated and forms with adjusting valve casing, valve seat by adjusting handle, pressure cap, spool, and structure is comparatively complicated, and the difficulty of processing of spool is larger.Switch lock adopts sincere button structure, and structure is comparatively complicated, during locking, pins Piezoelectric switches on the other hand, also needs another hand to rotate sincere button, convenient not.
In addition, the ignition lead of gas brazing welding gun and piezoelectrics are to hold one of flimsy part most, the ignition lead of former welding gun and piezoelectrics are an entirety, the head of ignition lead is fixed on the head of welding gun, piezoelectrics are arranged on handle place, when the two one of break down, repair and replacement quite bother.
Summary of the invention
Technical problem to be solved in the utility model is: provide that a kind of cost is lower, security good, easy to use, the integrated gas brazing welding gun that is easy to carry and keeps in repair.
The technical scheme in the invention for solving the above technical problem is: gas brazing welding gun, by pressure reducing valve component, ignition module, switch lock assembly, valve assembly, air mixer, gun barrel and rifle head, be connected in sequence, pressure reducing valve component, ignition module, switch lock assembly, adjusting
Valve module is installed in the enclosure, it is characterized in that: valve assembly and pressure reducing valve component are separate; Described switch lock assembly comprises locking closure, tapered end, tapered end spring, locking closure spring and button ignition switch, and tapered end is a stock, and tapered end spring is installed between locking closure and tapered end, and locking closure spring is installed between locking closure and handle; On button ignition switch, have chute and tapered end to coordinate, chute comprise one vertical slots with together with level trough, the top of vertical slots is connected with level trough, locating hole is arranged at the bottom of vertical slots, the outside of level trough is locking hole; Described locking hole is through hole, and locating hole is blind hole, and the head of described tapered end is circular; Between described ignition lead and piezoelectrics, be provided with snap joint.
Described pressure reducing valve component is arranged on the afterbody of shell, wherein the first screen pack is arranged on the head of gas cylinder thimble, pressure-reducing valve covers and is provided with gas cylinder seal washer, the first valve inside is arranged on the inside of decompression valve gap, decompression valve gap and outer casing screw coordinate, to be arranged in pressure reducing valve casing with the piston of relief spring, there is pore at the center of piston, and one end of piston withstands on the push rod of the first valve inside.
Described pressure reducing valve casing is that stainless steel is made, and the wall thickness of pressure reducing valve casing is 0.5mm.
Described ignition module comprises button ignition switch, piezoelectrics, valve stem, duaspiracle core; Ignition module is arranged in the handle of gas brazing welding gun and extends upwardly to the middle part of shell; The air inlet path of duaspiracle core communicates with pressure reducing valve component, and the gas outlet of duaspiracle core communicates with valve assembly, and the push rod of duaspiracle core contacts mutually with valve stem; Ignition lead enters into gun barrel from air mixer, and ignition lead head is fixed on the support in gun barrel exit.
Described valve assembly comprises regulating valve seat, spool handwheel, regulating spool, adjusting valve gap, the second screen pack and inner nozzle, regulating valve seat is connected with shell by screw thread, junction is provided with sealing ring, regulating spool extend in the spool bore of regulating valve seat, the head of regulating spool is conical, the upper semisection of regulating spool and control valve housing threaded engagement, control valve outlet inside is provided with the second screen pack and inner nozzle.
Described air mixer and control valve outlet tight fit; and fix by screw, the middle part of air mixer is evenly equipped with multiple airports, and installing hole is arranged at the bottom of air mixer; one end of ignition lead protective sleeve is arranged in the installing hole of air mixer, and gun barrel and air mixer are threaded.
In described rifle head, swingfire device is installed, rifle head is connected with the head threads of gun barrel.
Described shell is that metallic aluminium is made.
Compared with prior art, the utility model has the advantage of: the functions such as the integrated decompression of welding gun, pressure regulation, rapid-ignition, burning locking are integrated, compact conformation, volume is small and exquisite, having kept, on the basis of former welding gun repertoire, having reduced difficulty of processing, reduced production cost, accessory has carried out standardization, and it is convenient to change.Its advantage is specific as follows.
1, the design of this kind of welding gun has adopted metallic aluminium as its shell, durable in use, has alleviated the weight of welding gun, cost.
2, in the cylindrical stainless steel punching press housing that to be arranged on a wall thickness be 0.5mm of piston, the relief spring in its pressure reducing valve component, it is simple in structure, and manufacturability is strong, is suitable for producing in enormous quantities as standard component, reduces costs.
3, its regulating valve structure is simple, only by control valve housing, regulating spool and handwheel, formed, and be all cylindrical structural, manufacturability is strong, is suitable for producing in enormous quantities, and with low cost.
4, control valve is separation with ignition switch, while having avoided each igniting, all needs to readjust gas flow, easy to use.
5, switch lock assembly can guarantee, when welding, to keep gas circuit unobstructed, needn't continue crimping point fire button, meets operating habit.While using lock function, only need forefinger to press locking closure, therefore can complete the locking and unlocking action by one hand, very convenient.
6, for ignition lead and piezoelectrics, be easy to the problem of damaging, between ignition lead and piezoelectrics, be provided with snap joint, the two is independently opened, and is easy to change.
Accompanying drawing explanation
Fig. 1, the utility model structural representation (cutaway view).
The structural representation of Fig. 2, pressure reducing valve component.
The structural representation (not igniting) of Fig. 3, ignition module and switch lock assembly.
The structure chart of Fig. 4, button ignition switch outer wall.
The structure chart of Fig. 5, pressure regulation assembly and air mixer.
The structure chart of Fig. 6, rifle head part.
The structural representation (during welding, after button ignition switch is locked) of Fig. 7, ignition module and switch lock assembly.
The specific embodiment
Below in conjunction with accompanying drawing, embodiment of the present utility model is further described.
As shown in the figure, gas brazing welding gun, by pressure reducing valve component, ignition module, switch lock assembly, valve assembly, air mixer, gun barrel and rifle head, be connected in sequence, pressure reducing valve component, ignition module, switch lock assembly, valve assembly are installed in the enclosure.Described shell is that metallic aluminium is made.The hollow casing of making than brass, cost is low, and entity shell is durable in use, is not afraid of and falls, not yielding.
Described pressure reducing valve component is the structure that piston and valve inside match, and pressure reducing valve component is arranged on the afterbody of shell 9.As shown in Figure 2, the first screen pack 1 is arranged on the head of gas cylinder thimble 2.Gas cylinder thimble 2 and decompression valve gap 5 are threaded, and pressure-reducing valve covers and is also provided with gas cylinder seal washer 3, prevents from leaking gas between welding gun and gas cylinder.The first valve inside 4 is arranged on the inside of decompression valve gap 5, and decompression valve gap and shell 9 threaded engagement, be arranged on the piston with relief spring 76 in pressure reducing valve casing 8, and there is pore 6_1 at the center of piston, and one end of piston withstands on the push rod 4_ 1 of the first valve inside.
Described pressure reducing valve casing 8 is made for stainless steel, and the wall thickness of pressure reducing valve casing is 0.5mm.Pressure reducing valve casing and shell tight fit, be provided with sealing ring between pressure reducing valve casing and decompression valve gap.
As shown in Figure 3, described ignition module comprises button ignition switch 10, piezoelectrics 11, valve stem 12, duaspiracle core 15 and ignition lead protective sleeve 20; Ignition module is arranged in the handle of gas brazing welding gun and extends upwardly to the middle part of shell 9.What install successively from bottom to top is button ignition switch 10, piezoelectrics 11, valve stem 12, duaspiracle core 15.Valve stem 12 and duaspiracle core 15 are installed in valve seating shell 14, between valve stem and duaspiracle core, valve spring 13 are installed.The push rod 15_1 of valve stem 12 and duaspiracle core contacts.The air inlet path of duaspiracle core communicates with pressure reducing valve component, and the gas outlet of duaspiracle core communicates with valve assembly.
Described switch lock assembly comprises locking closure 16, tapered end 17, tapered end spring 16, locking closure spring 18 and button ignition switch 10, and tapered end 17 is a stock, and tapered end spring 19 is installed between locking closure and tapered end, and locking closure spring 18 is installed between locking closure and handle; On button ignition switch 10, have chute and tapered end 17 to coordinate, chute comprise one vertical slots 10_1 with together with level trough 10_2, the top of vertical slots is connected with one end of level trough, locking hole 10_3 is arranged at the bottom of vertical slots, the outside of level trough is locating hole 10_4.
Described locking hole 10_3 is through hole, and locating hole 10_4 is blind hole, and the head of tapered end 17 is circular, and locking hole and locating hole match.When tapered end enters locating hole, can block button ignition switch 10, it can not freely be rotated; While rotating button ignition switch with hand, can compress tapered end spring, make tapered end exit locating hole.When tapered end enters locking hole, because locking hole is through hole, button ignition switch is located completely, can not move and rotate.
As shown in Figure 5, described valve assembly comprises regulating valve seat 22, spool handwheel 23, regulating spool 24, regulates valve gap 25, the second screen pack 26 and inner nozzle 27.Regulating valve seat 22 is connected with shell by screw thread, junction is provided with sealing ring, regulating spool extend in the spool bore 22_1 of regulating valve seat, the head of regulating spool is conical, the upper semisection of regulating spool is through regulating valve gap, with spool handwheel 23 threaded engagement, control valve outlet inside is provided with the second screen pack 26 and inner nozzle 27.The second screen pack can fully guarantee combustion gas gas-liquid separation, prevents from effectively preventing that tempering and impurity from entering in control valve.
Air mixer 28 and control valve outlet tight fit; and fix by screw, the middle part of air mixer is evenly equipped with multiple airport 28_1, and installing hole is arranged at the bottom of air mixer; one end of ignition lead protective sleeve is arranged in the installing hole of air mixer, and gun barrel and air mixer are threaded.
As shown in Figure 6, ignition lead 21 is through gun barrel 29, and the head of ignition lead is fixed on the support 30 in gun barrel exit.Rifle head 31 is connected with the head threads of gun barrel, and swingfire device 32 is installed in rifle head.Swingfire device 32 can make the flame of ejection produce cyclone, and inwardly gathers, and can improve welding temperature.
The course of work of welding gun is divided into following several state:
One: do not access fuel gas bottle.Now button ignition switch is subject to the thrust of valve spring 13 and the stack of piezoelectrics back-moving spring, and in minimum position, duaspiracle core is closed; The piston both sides air pressure of pressure reducing valve component is identical, and piston is subject to relief spring thrust to the right, promotes the bar that moves back of the first valve inside to the right, and the first valve inside is opened completely.
Two: access fuel gas bottle, not igniting.Now valve thimble 2 enters in fuel gas bottle, combustion gas is through the first screen pack 1, carry out after gas-liquid separation, combustion gas enters the first valve inside, because the first valve inside is now opened completely, and duaspiracle core is closed, therefore, combustion gas, along the first valve inside, piston hole 6-1, enters into the air inlet path of duaspiracle core.Now, because the air pressure of combustion gas promotes piston on the right side of piston, offset the thrust of a part of relief spring, therefore the push rod of duaspiracle core stretches out, and keep a relative balance with piston, the combustion gas air pressure of pressure-reducing valve outlet is remained in the scope of setting.
Three: igniting.During igniting, need to rotate button ignition switch, tapered end 17 be exited in button ignition switch locating hole 10_4, and enter in vertical slots 1 along level trough 10-2, can upwards press afterwards button ignition switch.
While pressing button ignition switch, piezoelectrics are started working, and at gun barrel head, emit electric arc.And piezoelectrics move up, promote valve stem 12 and move up, and then open duaspiracle core, combustion gas, after pressure regulator valve, the second screen pack, inner nozzle, mixes with air in air mixer, enters gun barrel.At rifle head, place is lighted.
Four: locking.As shown in Figure 7, after lighting a fire successfully, the position of button ignition switch in the top, lock hole 10_3 and tapered end 17 be in same level, presses locking closure, promotes tapered end and enter in lock hole, and button ignition switch cannot be return downwards, can keep duaspiracle core continuous openness, flame sustained combustion.Now can change by control valve the throughput of combustion gas, control combustion flame.
Five, release flame-out.Again press locking closure, make tapered end eject lock hole, unclamp button ignition switch, it is moved downward, ignition module resets, and duaspiracle core is closed, and cuts off gas circuit.After closing, rotate button ignition switch, locking bar is got back in locating hole.This hour locking lever, in level trough, can not upwards promote button ignition switch, prevents that mistake is by ignition switch.
For welding gun, tempering has multistage safeguard to this welding gun: when the first, tempering occurs in gun barrel, and the pressure release from the airport of air mixer of the gases at high pressure in the flame of reverse burning more than 99%, few air-flow enters in pressure regulator valve by the second screen pack; The second, because the gas circuit of pressure regulator valve, duaspiracle core is little, air pressure is large, even if pressure regulator valve is completely unlimited, also only has the tempering air flow energy of denier to get back in pressure-reducing valve by duaspiracle core; Even if the 3rd tempering air pressure enters in pressure-reducing valve, this gas shock meeting makes the air pressure in pressure-reducing valve exit be greater than the air pressure of porch, destroy the poised state between relief spring and gas cylinder internal gas pressure, thereby oppositely promote piston, the first valve inside 4 cuts out rapidly under the effect of self spring, block the blast tube between welding gun and gas cylinder, thereby guaranteed gas cylinder safely.After finishing Deng tempering, piston under relief spring and the acting in conjunction of gas cylinder internal gas pressure, the state that again restores balance, the combustion gas of stable output air pressure.
In like manner, if fuel gas bottle comes off, valve thimble place loses air pressure, and piston moves right rapidly, opens fast the first valve inside, discharges the combustion gas of welding gun inside, safe and reliable.
Claims (8)
1. a gas brazing welding gun, by pressure reducing valve component, ignition module, switch lock assembly, valve assembly, air mixer, gun barrel and rifle head, be connected in sequence, pressure reducing valve component, ignition module, switch lock assembly, valve assembly are arranged in shell (9), it is characterized in that: valve assembly and pressure reducing valve component are separate; Described switch lock assembly comprises locking closure (16), tapered end (17), tapered end spring (19), locking closure spring (18) and button ignition switch (10), tapered end is a stock, tapered end spring is installed between locking closure and tapered end, locking closure spring is installed between locking closure and handle; On button ignition switch, have chute and tapered end to coordinate, chute comprises one vertical slots (10_1) and level trough (10_2) together, and the top of vertical slots is connected with level trough, and locating hole (10_3) is arranged at the bottom of vertical slots, and the outside of level trough is locking hole (10_4); Described locking hole is through hole, and locating hole is blind hole, and the head of described tapered end is circular; Between ignition lead and piezoelectrics (11), be provided with snap joint (20).
2. gas brazing welding gun according to claim 1, it is characterized in that: described pressure reducing valve component is arranged on the afterbody of shell (9), wherein the first screen pack (1) is arranged on the head of gas cylinder thimble (2), on decompression valve gap (5), be provided with gas cylinder seal washer (3), the first valve inside (4) is arranged on the inside of decompression valve gap (5), decompression valve gap and welding torch casing (9) threaded engagement, piston with relief spring (7) (6) is arranged in pressure reducing valve casing (8), there is pore (6_1) at the center of piston, one end of piston withstands on the push rod (4_ 1) of the first valve inside.
3. gas brazing welding gun according to claim 2, is characterized in that: described pressure reducing valve casing (8) is made for stainless steel, and the wall thickness of pressure reducing valve casing is 0.5mm.
4. gas brazing welding gun according to claim 1, is characterized in that: described ignition module comprises button ignition switch (10), piezoelectrics (11), valve stem (12), duaspiracle core (15), ignition lead (21) and snap joint (20); Ignition module is arranged in the handle (9_1) of gas brazing welding gun and extends upwardly to the middle part of shell (9); The air inlet path of duaspiracle core communicates with pressure reducing valve component, and the gas outlet of duaspiracle core communicates with valve assembly, and push rod (15_1) and the valve stem (12) of duaspiracle core contact; Ignition lead enters into gun barrel (29) from air mixer (28), and the head of ignition lead is fixed on the support (30) in gun barrel exit.
5. gas brazing welding gun according to claim 1, it is characterized in that: described valve assembly comprises regulating valve seat (22), spool handwheel (23), regulating spool (24), regulate valve gap (25), the second screen pack (26) and inner nozzle (27), regulating valve seat is connected with shell (9) by screw thread, junction is provided with sealing ring, regulating spool extend in the spool bore (22 _ 1) of regulating valve seat, the head of regulating spool is conical, the upper semisection of regulating spool and control valve housing threaded engagement, the inside of control valve outlet is provided with the second screen pack and inner nozzle.
6. gas brazing welding gun according to claim 1; it is characterized in that: described air mixer (28) and control valve outlet tight fit; and fix by screw; the middle part of air mixer is evenly equipped with multiple airports (28_1); installing hole is arranged at the bottom of air mixer; one end of ignition lead protective sleeve is arranged in the installing hole of air mixer, and gun barrel and air mixer are threaded.
7. gas brazing welding gun according to claim 1, is characterized in that: swingfire device (32) is installed in described rifle head (31), and rifle head is connected with the head threads of gun barrel (29).
8. gas brazing welding gun according to claim 1, is characterized in that: described shell (9) is metallic aluminium making.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320692085.5U CN203578975U (en) | 2013-11-06 | 2013-11-06 | Gas brazing welding gun |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320692085.5U CN203578975U (en) | 2013-11-06 | 2013-11-06 | Gas brazing welding gun |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203578975U true CN203578975U (en) | 2014-05-07 |
Family
ID=50576948
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320692085.5U Withdrawn - After Issue CN203578975U (en) | 2013-11-06 | 2013-11-06 | Gas brazing welding gun |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203578975U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103567590A (en) * | 2013-11-06 | 2014-02-12 | 蒋海翔 | Gas braze welding gun |
-
2013
- 2013-11-06 CN CN201320692085.5U patent/CN203578975U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103567590A (en) * | 2013-11-06 | 2014-02-12 | 蒋海翔 | Gas braze welding gun |
| CN103567590B (en) * | 2013-11-06 | 2015-08-19 | 蒋海翔 | Gas brazing welding gun |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20140507 Effective date of abandoning: 20150819 |
|
| RGAV | Abandon patent right to avoid regrant |