KR100868020B1 - Torch - Google Patents

Abstract

A torch is provided to prevent a hose of the torch from being braided and to improve workability by installing a filter for preventing the back fire inside the torch. Therefore the torch capable of preventing slipping of a hand which grasping a handle is provided. A torch comprises a head(1) inserted a bushing(1-10) to an outer surface of an inner ending part of a fire hole head(1-11) for preventing cut oxygen supplied to a cut oxygen hole(1-8) from flowing backward to a mixing gas chamber(1-5); a handle(4) puts on a grip tube(4-8) in the exterior of a handle body(4-1); a valve bundle part(3) forms a preheat control valve of gas controlling the preheat gas volume on the valve bundle; a spindle(4-7) is formed to be protruded at lower end surface of the handle body; and an oxygen gas supply bundle part(5) prevents the braided of the hose which is supplied with oxygen and gas and connects a spindle to an oxygen gas supply housing(5-1) formed a gas inlet(5-4) and an oxygen inlet(5-5) to be rotatable and shut tightly.

Description

Torch {TORCH}

1 is a front view showing the appearance of the torch according to the present invention.

Figure 2 is a front sectional view showing the structure of the torch according to the present invention.

3 and 4 is an enlarged cross-sectional view showing an extract of the head and the oxygen gas supply bundle of the torch according to the present invention.

delete

5 and 6 are a front view and a head enlarged view showing a conventional torch proposed by the person.

delete

Figure 7 is a front sectional view showing another embodiment of the present invention.

           * Explanation of symbols for the main parts of the drawings *

1.Head 1-1.Head body 1-2.Preheated oxygen spray nozzle

1-3.Preheating oxygen injection hole 1-4.Preheating gas supply hole 1-5.Mixed gas seal

1-6 Mixed gas ball 1-7 Preheating gas jet 1-8 Cutting oxygen hole

1-9.Cutting Oxygen Sprayer 1-10.Bushing 1-11.Ball Head

Crater nut 1-13 Crater body 1-14 Crater nut

1-15. Crater Nozzle 1-16. Crater Tip 2. Oxygen Gas Supply Pipe

2-1.Preheated oxygen supply pipe 2-2.Preheated gas supply pipe 2-3.Cutted oxygen supply pipe

3. Valve Bundle 3-1. Preheat Gas Control Valve 3-2. Preheat Oxygen Control Valve

3-3. Cutting oxygen valve 3-4. Gas inlet hole 3-5. Preheating gas hole

3-6.Preheating Oxygen 3-7.Cap 3-8.Cutting Oxygen

3-9.Oxygen Inflow Hole 4.Handle 4-1.Handle Body

4-2.Oxygen supply pipe 4-3.Preheating gas supply hole 4-4.Connection bundle

4-5.Oxygen supply hole 4-6.Gas supply hole 4-7.Spindle

4-8.Grip Tube 5.Oxygen Gas Supply Bundle 5-1.Housing

5-2.Retaining Ring 5-3.Cap 5-4.Gas Inlet

delete

5-5.Oxygen inflow port 5-6 O-ring 5-7 O-ring

5-8.O-ring 100.Preheating gas valve bundle

100-1.Preheating gas valve bundle body 100-2.Preheating gas valve

100-3.Gas Inlet 100-4.Oxygen Inlet 300.Flashback Protection Filter

 The present invention is a tool used for cutting, heating, melting, welding, and the like of a metal workpiece, and more particularly, using a conventional tip (crater) as illustrated. The torch is equipped with an injector, a preheated oxygen valve seed and a regulating valve in the body of the torch, so that the backfire phenomenon occurs frequently when unskilled workers use it. There is a problem that a safety accident occurs.

In order to solve the problem of the conventional torch (gas cutter), I apply the invention patent application No. 10-2005-0098267 (patent registration No. 10-7300040) "torch" as illustrated in FIGS. Suggested.

The conventional torch illustrated in FIGS. 5 and 6 includes a head 1 provided with a crater drive tip 1-16, a preheated oxygen supply pipe 2-1, and a preheated gas supply pipe 2-2 with oxygen and gas flowing therein. 2) and an oxygen gas supply pipe (2-3) formed of the cut oxygen supply pipe (2-3) to supply the head (1) from the valve bundle section (3), and a valve bundle for separating and supplying oxygen into preheated oxygen and cut oxygen ( 3), the handle 4 to hold the handle body 4-1, the preheating gas valve 100-2 and the gas inlet (100-3) and the oxygen inlet ( 100-4) is provided with a preheating gas valve bundle (100).

In particular, the head 1 is formed as illustrated in FIG. 6.
The preheated oxygen injection hole 1-3 and the preheat gas supply hole 1-4 are formed in communication with the lower part of the head body 1-1 formed in a bent shape, and the cut oxygen hole 1-8 is formed. It is formed separately, the mixed gas chamber (1-5) is formed on the upper end of the preheating oxygen injection hole (1-3) so that the preheating gas and the preheating oxygen can be mixed and supplied.

On the front part of the head body 1-1, a fire body body 11-1 having a cutting oxygen supply hole and a mixed gas hole 1-6 formed at the center and the outside of the fire head 1-11 is provided with a crater lock nut 1 -12), a cutting oxygen injection hole (1-9) is formed at the tip of the crater body (1-13) at the center of the crater nozzle (1-15), and the outside of the crater nozzle (1-15). A crater nut 1-16 having a preheating gas injection port 1-7 is mounted on the crater nut 1-14.

In the conventional torch formed as described above, the sealing force of the head crater 1-11 attached to the head portion 1 is reduced, and the cutting oxygen leaks into the mixed gas hole 1-6 and the mixed gas chamber 1-5 and backfires. The phenomenon occurs, and the preheat gas valve 100-2 is formed in the preheat gas valve bundle 100, and the preheat gas valve 100-2 is touched during the preheating operation. When the) is opened (operation), the preheating flame is changed or turned off, and the gas is leaked and a safety accident cannot be excluded.

In addition, since the handle body 4-1 forming the handle 4 is made of metal, there is a problem that it is not easy to grip and slips during operation, so that the operation cannot be easily performed. Since the gas inlet 100-3 and the oxygen inlet 100-4 are integrally formed at the 100-1, the oxygen supply hose and the gas supply hose are twisted when the work position is moved, thereby distracting the surroundings. There is a problem that reduces workability.

It is an object of the present invention to provide a torch that can be provided with a hose so that productivity is improved and can be used conveniently.

The present invention is to provide a safe torch improved to solve the backfire phenomenon that the conventional cutting torch is frequently generated.

The present invention is to provide a torch that can prevent the safety accident by preventing the gas outflow by opening the gas valve by an external impact.

The present invention is to provide a torch that can be used safely and conveniently by covering the tube on the outside of the handle to prevent slip.

The present invention is to provide a safe torch improved to prevent the backfire by providing a filter for the backfire prevention inside the handle.

The present invention is to provide a safe torch by preventing the phenomenon that the flame prevents the inflow of the hose and gas container when the backfire occurs.

The above and other objects of the present invention,

Head (1) equipped with a crater drive tip (1-16), oxygen and gas flowing through the oxygen hose and gas hose is preheated oxygen supply pipe (2-1) and preheat gas supply pipe (2-2) and cut oxygen supply pipe Oxygen gas supply pipe (2) which is formed of (2-3) and supplies from the valve bundle (3) to the head (1), the valve bundle (3) for separating and supplying oxygen into preheated oxygen and cut oxygen, the handle body (4) -To supply gas and oxygen through the handle 4, the gas inlet 5-4 and the oxygen inlet 5-5 formed at the lower end of the handle 4 to hold -1);

The head 1 has an inner end portion of the crater head 1-11 that is loaded such that the cut oxygen supplied to the cut oxygen holes 1-8 of the head body 1-1 does not flow back into the mixed gas chamber 1-5. Bushings 1-10 on the outside;

The handle 4 is to cover the grip tube (4-8) on the outer surface of the handle body (4-1);
It is provided with a flashback prevention filter 300 inside the handle (4);

The valve bundle 3 is formed by forming a preheat gas control valve (3-1) for adjusting the amount of preheating gas in the valve bundle;

The spindle 4-7 is formed to protrude from the lower surface of the handle body 4-1 forming the handle 4, and the spindle 4-7 has a gas inlet 5-4 and an oxygen inlet 5 The oxygen gas supply housing 5-1 is rotatably and hermetically coupled to the formed oxygen gas supply housing 5-1 to prevent twisting of the hose to which oxygen and gas are supplied. Is achieved by a torch.

The above and other objects and features of the present invention will be more clearly understood by the following detailed description based on the accompanying drawings.

1 to 4 and 7 show a specific implementation of the torch according to the present invention, Figures 1 and 2 are a front view and a front sectional view showing a torch according to the present invention, Figures 3 and 4 Is an enlarged cross-sectional view showing the head and the oxygen gas supply in the torch according to the present invention, Figure 7 is a front sectional view showing another embodiment of the present invention.
1 to 4, the torch according to the present invention illustrated in FIGS. 1 to 4 is similar to a conventional torch, and includes a head 1 equipped with a crater driving tip 1-16, and oxygen and gas introduced therein. 1) and the preheating gas supply pipe (2-2) and the cut oxygen supply pipe (2-3) and the oxygen gas supply pipe (2) for supplying the head (1) from the valve bundle unit 3, the oxygen is cut with preheating oxygen Valve inlet (3) for separating and supplying with oxygen, handle (4) to hold the handle body (4-1), and gas inlet (5-4) and oxygen inlet (5-5) to the spindle (4-7) ) Is provided with an oxygen gas supply bundle 5 rotatably coupled to the oxygen gas supply housing 5.
The head 1 provided with the crater driving tips 1-16 was formed as shown in detail in FIG. 3.
In the lower portion of the head body (1-1) formed in a bent, the preheated oxygen injection hole (1-3) and the preheating gas supply hole (1-4) was formed in communication, the cut oxygen hole (1-8) separately At the upper end of the preheated oxygen injection hole (1-3), a mixed gas chamber (1-5) was formed to mix and supply the preheated gas and the preheated oxygen.
On the front part of the head body 1-1, a crater body 1-1 having a cutting oxygen supply hole and a mixed gas hole 1-6 formed at the center and the outside of the crater head 1-11 is provided with a crater lock nut 1 -12), the cutting oxygen supplied to the cutting oxygen hole (1-8) of the head body (1-1) by inserting a bushing (1-10) on the outer surface of the inner end of the recovery head (1-11) In order not to flow back into the mixed gas chamber (1-5), the cutting oxygen injection hole (1-9) is formed at the center of the crater nozzle (1-15) at the tip of the crater body (1-13) and the crater nozzle (1--1). A crater nut 1-16 having a preheating gas injection port 1-7 formed outside of 15) was mounted by a crater nut 1-14.

The valve bundle 3 was formed as follows.
The lower end of the preheated oxygen supply pipe (2-1) and the preheated gas supply pipe (2-2) and the cut oxygen supply pipe (2-3) forming the oxygen gas supply pipe portion (2) on the upper surface of the valve bundle is sealed, the valve Preheating oxygen holes (2-6) and cut oxygen holes (3-8) are formed at both sides of the oxygen inlet hole formed in the inner center of the bundle, respectively, and caps (3-7) at the ends of the preheating oxygen holes (3-6). ) Was sealed by insertion.
The preheating oxygen control valve (3-6) is equipped with a preheating oxygen control valve (3-2) and the cutting oxygen control valve (3-3) is equipped with a preheating oxygen control valve (3-6). The preheating gas control valve 3-2 was installed in the gas inlet hole 3-4 formed at one side of the valve bundle to adjust the preheating gas.
The oxygen gas supply bundle 5 in which the oxygen gas supply housing 5-1 is rotatably formed at the lower end of the handle body 4-1 forming the handle 4 is formed as illustrated in FIG.
Inside the handle body 4-1, a filter for preventing backfire 300 was purchased, and a connecting bundle 4-4, which is hermetically coupled to the lower end of the handle body 4-1, was formed in a cap shape. In the center of the bottom surface of (4-4) integrally formed a spindle (4-7) which is drilled in the center so that the distribution hole is opened upwards, the oxygen supply pipe (4-2) is inserted in the distribution hole to be sealed, and at the bottom of the distribution hole The cap 5-3 was inserted in a sealed manner to block the bottom of the distribution hole.
Drill gas supply holes (4-6) and oxygen supply holes (4-5) to the upper and lower portions of the spindle (4-7), but the gas supply holes (4-6) to the handle body (4-1) It communicates with the preheating gas supply hole 4-2 formed by the oxygen supply hole 4-5, and communicates with the oxygen supply pipe 4-2.
On the outside of the spindle 4-7, a gas inlet 5-4 and an oxygen inlet 5-5 are formed by rotating and hermetically inserting an oxygen gas supply housing 5-1, which is formed at both sides, and is coupled to the spindle. A stop ring 5-2 was coupled to the lower end of the outer periphery of (4-7) to prevent the mounted oxygen gas supply housing 5-1 from being separated (separated) to the outside.
Upper and lower inner circumferential surfaces of the oxygen gas supply housing 5-2 communicate with the gas inlet 5-4 and the oxygen inlet 5-5 and the gas induction groove 5-9 and the oxygen induction groove 5-10. ), The gas induction grooves 5-9 communicate with the gas supply holes 4-6 and the oxygen induction grooves 5-10 communicate with the oxygen supply holes 4-5.
On the inner circumferential surface of the oxygen gas supply housing 5-2, an O-ring groove is formed at the upper side, the lower side, and the center of the gas guide groove 5-9 and the oxygen guide groove 5-10, respectively. -6) (5-7) were loaded to maintain the spindle (4-7) and sealed state.
Figure 7 shows another embodiment of the torch according to the present invention, the fireball and pipe 200 is mounted on the upper side of the valve bundle 3 mounted on the upper end of the handle 4, the handle portion 4 The oxygen gas supply bundle 5 as described above was formed at the bottom.

The torch according to the invention works as follows.
In the lower end of the handle portion 4 is provided with a double pipe in the connection bundle (4-4) for coupling with the oxygen gas supply bundle body (5-1) so that oxygen can pass through the oxygen supply pipe (4-2). The preheated gas can be welded to the handle body 4-1, welded to the lower end of the valve bundle 3, and the oxygen passed through the inside of the oxygen supply pipe 4-2 is the oxygen inlet hole. Reach the preheated oxygen valve 3-2 through 3-9, adjust the amount of preheated oxygen according to the operation of the preheated oxygen valve 3-2, and preheat through the preheated oxygen hole 3-6. After passing through the oxygen supply pipe (2-1) to the head portion (1), the injection into the preheated oxygen injection hole (1-3) of the preheated oxygen injection nozzle (1-2) provided in the head body (1-1) do.
Preheated gas introduced through the gas supply hole (4-6) passes through the interior of the handle (4-1) to reach the preheating gas valve (3-1) through the gas inlet hole (3-4) and the preheating gas valve ( Adjust the amount of preheating gas in accordance with 3-1).
The preheating gas supplied through the preheating gas hole 3-5 arrives at the head 1 through the preheating gas supply pipe 2-2, and the preheating gas supply hole 1-4 inside the head body 1-1. ), Preheated oxygen and preheated gas is mixed and injected into the mixed gas chamber (1-5) and flows into the mixed gas ball (1-6) inside the crater and the outside of the fire nozzle (1-15) and the crater drive tip. It is injected into the preheating gas injection port (1-7) through the inside of (1-16) and ignited by a fire such as a lighter to preheat the subject.
When the cutting oxygen valve (3-3) is opened after the preheating is finished, the oxygen of the oxygen inlet hole (3-9) is cut through the cutting oxygen tube (2-3) through the cutting oxygen hole (3-8). It is introduced into the oxygen hole (1-8) is injected from the cutting oxygen injection hole (1-9) to cut the subject.
Since the torch according to the present invention operating as described above operates in the same way as a conventional torch, a more detailed description of the operation principle will be omitted.

Since a heat resistant bushing 1-10 is provided inside the head body 1-1 forming the head 1, backfire can be prevented from occurring.
In the valve bundle 3 provided with the preheated oxygen control valve 3-1 and the cut oxygen control valve 3-3, a preheating gas control valve 3-2 is formed together, so that the preheating gas valve is not touched during the preheating operation. Therefore, it is possible to eliminate the problem that the preheating fire is changed or turned off or the gas leaks, causing a safety accident.
In addition, since the grip tube 4-8 is covered on the outer surface of the handle body 4-1, which forms the handle 4, the grip can be easily carried out, and the work can be easily performed by preventing slipping during the operation. can do.
The spindle 4 having the oxygen gas supply housing 5-1 of the oxygen gas supply bundle 5 provided with the gas inlet 5-4 and the oxygen inlet 5-5 is formed at the lower end of the handle body 4-1. -7), so the oxygen supply hose (not specifically shown) and the gas supply hose (not specifically shown) coupled to the oxygen supply port (5-4) and the gas supply port (5-5) even if the working position is moved. It is possible to prevent the twisted shape, and the oxygen supply hose and the gas supply hose are not twisted, so that it is possible to keep the work environment clean and not reduce workability.

 As described above, the torch according to the present invention can be conveniently used by preventing the twisting of the hose can improve the workability, can prolong the life of the fireball, the hand holding the handle slips in the handle during use The phenomenon can be prevented.

delete

delete

 In the past, a separate flashback arrestor was attached to the gas inlet to prevent backfire, but it was inconvenient to attach the flashback arrestor, and thus, some users did not use the flashback arrestor. Anyone can work safely because the filter is provided, and in the case of a flashback phenomenon, the flame prevents the inflow of the flame into the hose and the gas container by the flashback preventing filter so that it can be used safely.

Claims (2)

Head (1) equipped with a crater drive tip (1-16), oxygen and gas flowing through the oxygen hose and gas hose is preheated oxygen supply pipe (2-1) and preheat gas supply pipe (2-2) and cut oxygen supply pipe Oxygen gas supply pipe (2) formed of (2-3) to supply from the valve bundle (3) to the head (1), the valve bundle portion (3) for separating and supplying oxygen into preheated oxygen and cut oxygen, the handle body ( In the gas inlet (5-4) and the oxygen inlet (5-5) formed in the handle portion 4, the lower end of the handle portion 4 to hold the 4-1) to supply gas and oxygen; The head 1 has an inner end portion of the crater head 1-11 that is loaded such that the cut oxygen supplied to the cut oxygen holes 1-8 of the head body 1-1 does not flow back into the mixed gas chamber 1-5. Bushings 1-10 on the outside; The handle (4) and the grip tube (4-8) to the outer surface of the handle body (4-1) and the; It is provided with a flashback prevention filter 300 inside the handle (4); The valve bundle 3 is formed with a preheat gas control valve (3-1) for adjusting the amount of preheating gas in the valve bundle; The spindle 4-7 is formed to protrude from the lower surface of the handle body 4-1 forming the handle 4, and the spindle 4-7 has a gas inlet 5-4 and an oxygen inlet 5 The oxygen gas supply housing (5) is formed by combining the rotatable and hermetically coupled oxygen gas supply housing (5-1) to prevent the twisting of the hose supplied with oxygen and gas (5); Torch made. According to claim 1, Oxygen gas supply bundle (5) formed on the lower end of the handle portion (4) to prevent twisting of the hose supplied with oxygen and gas;  Oxygen gas supply bundle (5) and the connection bundle (4-4) of the handle 4 is formed separately, the oxygen gas supply bundle (outside the spindle (4-7) formed at the bottom of the connection bundle (4-4) 5) the housing 5-1 is coupled, and the stop ring 5-2 is fixed to the lower end of the spindle 4-7 to prevent the housing 5-1 from coming off; O-ring grooves 5-6, 5-7, and 5-8 are formed on the inner surface of the housing 5-1, and O-rings 5-5-, 5-7, 5-8 are formed in the respective o-ring grooves 5-6, 5-7, and 5-8. 6,5-7,5-8) to prevent the outflow of gas and oxygen; On the inner surface of the housing 5-1, flow path grooves 5-9 and 5-10 are formed in communication with the gas inlet 5-4 and the oxygen inlet 5-5 so that the spindle 4-7 rotates. To gas and oxygen can be supplied through the gas supply hole (4-6) and the oxygen supply hole (4-5) of the gas inlet (5-4) and oxygen inlet (5-5); .

Images