KR20140134403A - Gas torch - Google Patents

Abstract

The present invention relates to a gas torch capable of being coupled to a butane gas cylinder or a small gas cylinder conveniently and capable of emitting a flame uniformly in any direction. In particular, the present invention relates to a gas torch capable of emitting a flame uniformly, which is capable of emtting the flame uniformly by having a liquid fuel anti-leakage unit consisting of a first and a second narrow evaporation part with rapidly decreasing path cross-sections and which is capable of reducing dangers and improving efficiency in the operation of a user by preventing the flame from being oxidized irregularly and incompletely by the leakage of liquid fuel in the case of the operation. According to the present invention, a gas torch capable of emitting a flame uniformly comprises: an adaptor coupled to a gas cylinder; a body having a first gas path, and connected to the adaptor; and a nozzle part coupled to the body, having a second gas path connected to the first gas path, and having a flame emission part, and includes a liquid fuel anti-leakage unit consisting of: a first narrow evaporation part installed in the first gas path, and having a rapidly decreasing path cross-section; and a second narrow evaporation part installed in the second gas path, and having a rapidly decreasing path cross-section.

Description

[0001] The present invention relates to a gas torch having a uniform flame emission function,

The present invention relates to a gas torch having a uniform flame emission function,

More particularly, to a gas torch capable of uniformly spraying a butane gas or a small gas container and flame uniformly in any direction.

Particularly, the liquid fuel leakage prevention means composed of the narrow first and second vaporization portions in which the cross-sectional area of the passage is reduced rapidly can be provided, and the flame can be uniformly ejected, and the flame prevents irregular incomplete oxidation To a gas torch having a uniform flame emission function that reduces the risk of the user's work and increases the work efficiency.

Generally, gas torches are used extensively by using portable butane gas in various fields such as burning firewood, melting sea-work of iron pipes, welding, welding and so on. These gas torches are easy to carry and easy to use, so that users can conveniently use them.

The following technologies are known with the prior art related to the gas torch.

Korean Patent Laid-Open Publication No. 10-2012-0013697 (registered on Dec. 11, 2009) relates to a "portable gas torch with improved safety", wherein when a portable gas container is combined with a portable gas container, And a second nozzle formed of a first nozzle and a second nozzle, wherein the liquid gas generated in the space between the first nozzle and the second nozzle flows in the direction of the furnace The present invention relates to a portable gas torch, and more particularly, to a portable gas torch having improved safety with a nozzle bundle capable of preventing a phenomenon in which a liquid gas is injected into a second nozzle during switching and a uniform flame is not maintained and rapidly increased.

However, since the liquid space gas is prevented from flowing into the first nozzle or the second nozzle due to the space for liquid gas escaping between the first nozzle and the second nozzle by the nozzle bundle, If it continues for a long time, it accumulates continuously and consequently clogs the first injection nozzle, or is discharged to the second injection nozzle, causing incomplete combustion.

Further, the liquid gas formed in the gas escape space moves to the gas escape space when the gas is directed downward, but a part of the liquid gas can flow into the second nozzle, which inconvenient incomplete combustion.

In addition, a packing for preventing the leakage of the liquid gas during the connection of the first nozzle orifice and the second nozzle orifice is further added, thereby increasing the unit price of the product and weakening the market competitiveness of the product. The liquid gas is leaked and the user is exposed to the risk during operation.

The present invention relates to a portable gas torch, and more particularly, to a portable gas torch which is attached to an upper portion of a portable gas container 1 such as a butane gas container, And a gas inlet pipe 20 connected to an upper portion of the torch body 10 having a gas control valve 12 for regulating a gas discharge amount on one side is provided with a predetermined gas A first nozzle 40 having a second nozzle 60 formed with an air outlet 50 and a gas outlet 41 formed at a lower end of a combustion tube 30 coupled to an upper end of the gas inlet pipe 20, The gas ejected from the portable gas cylinder 1 is guided to the gas inlet pipe 20 and is guided through the second nozzle 60 at the upper end of the gas inlet pipe 20 to the first nozzle Therefore, a constant amount of gas is always supplied to the combustion tube 30 regardless of the direction of the combustion tube 30 It will be supplied.

However, since the space between the first nozzle and the second nozzle is further provided, the gas flowing into the space causes a vortex phenomenon, so that the back pressure of the gas is applied to the inside of the second nozzle, There is a problem to occur.

In addition, the space portion is too narrow to sufficiently accommodate the amount of gas rapidly ejected and can not be stably discharged to the first nozzle.

In addition, Patent Registration No. 10-1045873 (date of registration June 27, 2011) relates to a "torch for improving productivity and cost reduction", comprising a main body including a gas inflow portion and a discharge portion, A hearth connected to the main body; A gas supply pipe for supplying gas from an inlet portion of the main body to a discharge portion and having the crater and the overlapping portion; And coupling means for fixing the both ends of the gas supply pipe to the inlet and outlet of the main body, the coupling means being simple in structure and easy to assemble, It is possible to assure the assembling work of the gas supply pipe and the main body by introducing the double coupling structure and to assure the reliability of the assembly and to improve the productivity by the improved assembling property and to reduce the cost The present invention relates to a torch for enhancing productivity and decreasing cost, which can enhance the satisfaction of consumers by supplying products.

However, the above-mentioned patent has a problem that the temperature of the flame is directly transferred to the support so that the surface temperature of the support increases and the temperature of the air outlet is lowered.

Particularly, in the support of the firebox, end portions of the fireplaces where the flame is sprayed are heated up and oxidized together with the outside air to weaken the durability. In addition, after the work is finished, a large amount of grinding is generated and the carbonized powder is blown away when stored, resulting in contamination of the air inside the user's work area and weakness of the durability of the torch.

In addition, Patent Registration No. 10-0129629 (registered on November 11, 1997) relates to a "connection adapter for butane gas container", which is connected to the lower end side of the connection body 10 by a cutting groove And a plurality of the resilient pieces 22 having the engaging protrusions 22b formed on the support ring 1b of the butane gas container G are formed on the support plate 20 When the cam 30 fixed to the connecting body 10 is moved from the inner side of the resilient piece 22 to the inner side of the supporting ring 1b, And the support ring 1b is hooked to the hooking jaw 22b so that the operation for binding and disassembling the connection body 10 is facilitated and can be quickly attached and detached, It is an invention that anyone can use.

However, the connection body capable of binding and disassembling by holding and holding the container of the above-mentioned patent is complicated in the structure of the components, resulting in an increase in the manufacturing cost and a low price competitiveness.

In order to solve the above problems, the gas torch having the uniform flame emission function of the present invention

Which controls the flow rate of the gas using the cross-sectional area in different gas communication passages which can enhance the stability of the user by preventing the incomplete oxidation or the increase in the intensity of the flame by preventing leakage of the liquid fuel to the finally injected gas 1 < / RTI > and a second vaporizing portion, wherein the gas torch has a uniform flame emitting function.

In addition, the first and second gas communication passages before and after the first and second vaporizing portions, which can interrupt the amount of gas ejected in accordance with the flow rate and the flow rate of the gas in order to stably and uniformly jet the flame, It is an object of the present invention to provide a gas torch having a uniform flame emission function including a large front and rear wide portion.

A first protective tube for enclosing the injection part in a spaced apart form so as to reduce the loss of the flame to be injected and to supply the thermal power intensively to the inside and to prevent rapid oxidation of the protective pipe formed on the outside, And a second protection tube surrounding the first protection tube.

A plurality of locking projections coupled to an annular outwardly projecting groove around the injection nozzle of the gas container such that the butane gas can be easily separated from the portable butane gas container and quickly separated when the butane gas is injected rapidly differently from the user's intention, It is an object of the present invention to provide a gas torch having a uniform flame emission function combined with an engaging groove and a steel wire spring.

In order to solve the above-mentioned problems, a gas torch having a uniform flame emission function of the present invention

An adapter coupled to the gas container;

A body connected to the adapter in which the first gas communication passage is formed; And

A nozzle unit coupled to the body and having a second gas communication path connected to the first gas communication path and a flame spraying unit;

, ≪ / RTI >

And a liquid fuel leak preventing means provided in the first gas communication path and composed of a narrower first vaporizing portion in which the cross-sectional area of the passage decreases rapidly and a narrower second vaporizing portion provided in the second gas communication passage and whose cross- do.

Further, each of the first gas communication passage and the second gas communication passage before and after the first vaporizing portion and the second vaporizing portion has a front-rear wide portion having a relatively larger cross-sectional area,

And the first vaporizing portion of the liquid fuel leakage preventing means is larger in cross-sectional area than the second vaporizing portion.

In addition, the gas torch of the present invention having a uniform flame-

The nozzle unit includes a first protection tube that surrounds the injection unit in a spaced apart form, and a second protection tube that surrounds the first protection tube in a spaced apart form.

The adapter has a plurality of engaging projections which engage with annular outwardly projecting grooves around the injection nozzle of the gas container. The engaging projections have engagement grooves on the inside, and a steel wire spring for reinforcing the outward elasticity of the engagement protrusion .

In order to solve the above-mentioned problem, there is provided a gas-fueled internal combustion engine comprising: a narrow-width first vaporization section in which the cross-sectional area of the passage provided in the first and second gas communication passages is drastically reduced; and a narrow second vaporization section provided in the second gas- The liquid fuel leakage preventing means prevents the liquid fuel from leaking when the user lifts the gas torch upside down or tilts to the left and right sides to prevent the incomplete oxidation or the sudden increase in the intensity of the flame, .

Further, the present invention is characterized in that each of the first and second gas communication passages has a front-rear wide portion having a relatively larger cross-sectional area so that the liquid gas can be discharged even when the gas torch is inverted or tilted in any direction, The flame is uniformly and continuously sprayed, so that the usability of the user is increased and the efficiency of the operation can be secured.

Further, according to the present invention, since the first vaporizing portion is formed to have a larger cross-sectional area than the second vaporizing portion, the gas ejected from the second vaporizing portion liquefies even when the amount of gas ejected from the first vaporizing portion supplied into the torch increases or decreases rapidly It is possible to enhance the reliability of the product by exercising the flame spraying function of uniform and uniform firepower.

In addition, the present invention has first and second protective tubes that surround the spraying unit in a spaced apart form to reduce heat loss of the flame sprayed to the outside and to prevent rapid oxidation of the second protective tube formed on the outside, Can be concentratedly discharged to the first protection pipe, and it is easy to ignite for generating flame, so that durability and ease of use of the product can be ensured.

In addition, in the present invention, the latching protrusion of the adapter coupled to the upper groove of the gas container has an engagement groove on the inner side, and a steel wire spring reinforcing the outward elasticity of the latching protrusion is engaged with the engagement groove, And can be quickly separated, thereby enhancing the usability of the product and reducing the risk.

BRIEF DESCRIPTION OF THE DRAWINGS Figure 1 is a plan view of a gas torch having a uniform flame emission function of the present invention.
Fig. 2 (A) is an enlarged cross-sectional view of a nozzle part and a main part of a gas torch having a uniform flame-emitting function according to the present invention.
FIG. 2B is an enlarged cross-sectional view of the main part and the adapter of the gas torch body having the uniform flame emission function of the present invention. FIG.
3 is a cross-sectional enlarged view of an adapter in a gas torch having a uniform flame radiation function of the present invention.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will now be described in detail with reference to the accompanying drawings.

While the present invention has been described in connection with certain embodiments, it is obvious that the invention is not limited to the disclosed embodiments, but, on the contrary, is intended to cover various modifications and equivalent arrangements included within the spirit and scope of the invention. It is to be understood, however, that the invention is not intended to be limited to the particular forms disclosed, but on the contrary, is intended to cover all modifications, equivalents, and alternatives falling within the spirit and scope of the invention.

In the drawings, the same reference numerals are used for the same reference numerals, and in particular, the numerals of the tens and the digits of the digits, the digits of the tens, the digits of the digits and the alphabets are the same, Members referred to by reference numerals can be identified as members corresponding to these standards.

The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. The singular expressions include plural expressions unless the context clearly dictates otherwise. In the present application, the term " comprising " or " consisting of ", or the like, refers to the presence of a feature, a number, a step, an operation, an element, a component, But do not preclude the presence or addition of one or more other features, integers, steps, operations, components, parts, or combinations thereof.

Unless defined otherwise, all terms used herein, including technical or scientific terms, have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. Terms such as those defined in commonly used dictionaries are to be interpreted as having a meaning consistent with the contextual meaning of the related art and are to be interpreted as either ideal or overly formal in the sense of the present application Do not.

1, when a gas torch S having a uniform flame-emitting function according to the present invention is described,

The term "front and rear" refers to the flow according to the gas flow rate. When the gas flows through each component, that is, when the gas is supplied, the "front" The part is "after".

Also, the above " before and after " is described as "before" and "after", respectively, before and after passing through a component in a relative meaning. In the detailed description and claims of the invention relating to the different drawings, directions are specified in accordance with this standard.

In general, the gas torch may need to work at various angles depending on the user's working environment. When a common gas torch is upside down and the combined butane gas moves upside down from the bottom, the liquid fuel is discharged through the nozzle by the pressure, which may cause a risk of accident and safety of the user.

Accordingly, the present invention intends to disclose a gas torch which allows a user to uniformly spray a flame, thereby enhancing the efficiency of operation and ensuring safety of use of the product by the user.

First, as shown in Fig. 1,

A gas torch (S) S having a uniform flame-emitting function according to the present invention comprises an adapter 10, a body 20, and a nozzle unit 30.

The flow of the gas is controlled such that the gas ejected from the injection nozzle 1 of the gas container B coupled with the adapter 10 passes through the adapter 10 and the body 20 via the nozzle unit 30, .

In general, when the injection nozzle 1 of the gas container B is pushed, the gas is discharged. In order to discharge the gas, the vaporization phenomenon occurs to absorb the ambient temperature. At this time, if the ambient temperature is not properly absorbed or the temperature is low, the gasification phenomenon does not occur and the liquid gas returns to its original state.

In order to prevent such liquid fuel from being reduced again, the vaporized gas may be provided with a plurality of spaces having a relatively large volume or a reduced sectional area in order to maintain a constant temperature and change the flow rate and flow rate of the gas.

On the other hand, as shown in FIG. 4, the adapter 10 includes a coupling protrusion 11 and a connection guide 13 which can be engaged with the gas container B.

In addition, the gas container (B) can use a portable butane gas container (B) equipped with a spray nozzle (1) and a concave groove (5) which are generally circulated.

In addition, universal adapters can be used to attach different types of gas containers.

The engaging protrusion 11 has an engaging groove 11a formed therein and a steel wire spring 11b is engaged with the engaging groove 11a. The steel wire spring 11b is formed in an omega shape having a circular shape or an oval shape and a partly broken shape.

When the force is applied to the steel wire spring 11b, a part of the steel wire spring 11b is gathered into a broken portion to have a small diameter, and the steel wire spring 11b has elasticity to return to its original shape when the pressurized force is released.

The locking projections 11 are opened due to the outward elasticity of the steel wire spring 11b and the locking projections 11 are contracted when they are inserted into the recessed grooves 5 of the butane gas, When combined, they can be easily bonded by outward elasticity.

In addition, the connection guide 13 of the adapter 10 can be inserted into the butane gas connection groove 3 so that the insertion direction and the position can be guided. Therefore, The convenience of use can be improved.

Also, the connection guide 13 can be contracted by applying a slight pressure to separate the gas spring B from the gas container B coupled to the locking protrusion. The constriction of the steel wire spring 11b shrinks to the inside and the gas container B can be separated easily.

In addition, when the gas container B and the adapter 10 are instantaneously separated, the connection guide 13 can be quickly separated by applying an instantaneous impact (pressure), thereby preventing malfunction or mistake in using the torch S The flame radiation can be rapidly turned off, which can enhance the stability of use of the product.

Next, as shown in [B] of Fig. 2,

The body (20) is connected to the adapter (10) and has a first gas communication path (21). The first gas communication passage 21 includes the front light width portion 21b, the first vaporization portion 21a and the backlight width portion 21c to supply the gas supplied from the gas container B connected to the adapter 10 to the primary So that the flow rate and the flow velocity can be controlled to prevent the vaporized gas from being liquefied again.

First, the full light-width portion 21b of the body 20 is provided as first and second wide tubes 21A and 21B so that the liquid gas inside the gas container B is vaporized and supplied primarily, And is preheated.

In addition, the full light-width portion 21b may block the liquid gas which is partially vaporized so that the temperature of the inside of the body 20 rises or vaporized gas may escape, It can function as a primary function to inject uniform gas because it does not escape even when it is upside down or shake.

Also, the first wide tube 21A of the full width portion 21b discharges the gas to the second wide tube 21B having a relatively small cross sectional area, thereby increasing the gas flow rate of the second wide tube 21B. The gas moving at the increased speed is placed in a state just before the first vaporizing portion 21a is met and is primarily injected.

Next, the first vaporizing portion 21a of the body 20 is formed as a narrow width 21e in which the cross-sectional area of the passage rapidly decreases, so that the introduced vaporized gas can be injected quickly by a narrow cross- Has a narrow width 21e in which the cross-sectional area decreases rapidly with respect to the midpoint, and the through groove 21E is formed at the point where the third wide pipe 21C abuts.

In addition, the injected gas can be vaporized at a normal temperature by rapidly injecting the gas by the penetrating groove 21E, thereby providing a space for secondary preheating and controlling the flow rate and flow rate of the gas And is moved to the backlight width portion 21c.

In addition, the first vaporizing portion 21a of the body 20 can collect the gas gas causing the vortex phenomenon intensively in the through-groove 21E formed at the center due to the narrow width 21e in which the cross-sectional area decreases rapidly.

Also, the vortex phenomenon can be prevented as much as possible by the narrow width 21e of the first vaporizing portion 21a of the body 20, and the gas preheated at the first time can be quickly supplied to the through groove 21E.

In addition, it is preferable that the through groove 21E of the first vaporization portion is provided in the range of 0.25 to 0.35 mm.

Also, as a modification of the through groove 21E, the first vaporizing portion can be uniformly radiated with a plurality of penetrating grooves 21E so as to suppress the vortex caused by the narrow width 21e as much as possible.

In this case, it is preferable that the plurality of through grooves 21E are formed by dividing one through groove 21E into 1 / n so as not to interfere with the sectional area of the gas discharged from the one through groove 21E. 3)

The backlight width portion 21c of the first gas communication passage 21 is provided as third and fourth wide tubes 21C and 21D so that gas gas primarily injected from the first vaporization portion 21a And a third and fourth wide tubes 21C and 21D having a sectional area larger than that of the second wide tube 21B and the first vaporizing section 21a.

The third wide tube 21C of the backlight width portion 21c is formed to have enough space to prevent the gas injected from the first vaporizing portion 21a from liquefying again so that the gas can be preheated and the velocity of the instantaneously injected gas is lowered The gas supply can be stably maintained.

An upper portion of the third wide tube 21C is connected to a portion of the fourth wide tube 21D which is coupled to the fourth wide tube 21D by an inclined funnel .

In addition, the fourth wide tube 21D of the backlight width part 21c is formed of a tube having a smaller sectional area than the third wide tube 21C. The fourth wide tube 21D can quickly move the gas to the second gas communication path 31 of the nozzle unit 30 while maintaining the flow rate of the gas supplied from the third wide tube 21C have.

Further, the fourth wide tube 21D is formed of a tube made of stainless steel or steel having high heat resistance, and is preferably constructed so as not to be easily damaged or deformed due to high heat resistance and durability. The fourth wide tube 21D is connected to the full width portion 31b of the second gas communication passage 31 through the injection port 32a of the flame spraying portion 32 through which the flame is injected.

It is possible to provide a sufficient space and time for preheating the fourth wide width 21D so that the gas is not reduced to the liquid gas again while the gas is moving, so that the liquid fuel can be prevented from leaking.

Next, referring to [A] in Fig. 2,

The nozzle unit 30 includes a second gas passage 31, a flame spray unit 32, a first protection pipe 33, a second protection pipe 34, and an ignition unit (not shown).

The second gas communication passage 31 includes a full light width portion 31b, a second vaporization portion 31a, and a backlight width portion 31c. The full light width portion 31b is provided as fifth and sixth wide tubes 31A and 31B to control the flow rate and the flow rate before injecting the gas supplied from the first gas communication passage 21. [

The fifth wide tube 31A is formed larger than the cross sectional area of the fourth wide tube 21D so that a flow rate can be reduced and a sufficient flow rate can be supplied.

The sixth wide tube 31B is equal to or larger than the cross sectional area of the second wide tube 21B and smaller than the fifth wide tube 31A to increase the gas flow rate.

Next, the second vaporizing portion 31a of the second gas communication passage 31 is formed with a narrow width 31e in which the cross-sectional area of the passage is drastically reduced like the above-described first vaporizing portion 21a, Can be rapidly injected by the cross-sectional area that is sharply reduced.

The second vaporizing portion 31a of the second gas communication passage 31 has a narrowed width 31e in which the cross section of the second vaporizing portion 31a is reduced rapidly with respect to the center of the second vaporizing portion 31a, .

Also, it is preferable that the through groove 31E of the second vaporization part 31a is formed to be 0.25 to 0.36 mm.

The rear light width portion 31c of the second gas communication path 31 is provided as a seventh wide tube 31C so as to uniformly jet the gas emitted from the second vaporizing portion 31a and emitted, Of the second gas communication passage (31) is larger than the front full width portion (31b) of the second gas communication passage (31) so as to be concentrated on the injection port (32a) side of the flame spraying section (32).

The flame spraying unit 32 of the nozzle unit 30 may be made of bronze, stainless steel, or the like, which has high heat resistance because the gas directly injected into the flame changes into contact with the flame.

The flame spraying part 32 includes a cylindrical injection port 32a that directly contacts the outside air at the end of the gas discharge port to generate a large thermal power. The injection port 32a is made of a material having high heat resistance as described above.

Further, the injection port 32a can be changed into various shapes and can be gathered toward the center as it goes to the end, so that the work such as welding can be performed.

The flame spraying part 32 has a shape of a long conical shape without gathering the spreading of the gas into the place where the inner tube has a predetermined inclination and finally has a radial shape, 32a.

The end of the radially-shaped flame spray part 32 is connected to the injection port 32a. The injection port 32a is connected to an ignition plug (not shown) of an ignition means (not shown) .

The ignition plug of the ignition means may be connected to the injection port, but may be provided at a portion other than the flame spray portion 32 through which the gas is injected.

In addition, the first protection pipe 33 of the nozzle unit 30 is provided with a cylindrical pipe so as to surround the injection port 32a directly sprayed and to uniformly collect the flames to be radiated.

A fourth wide tube 21D is connected between the first and second protective tubes 33 and 34 and the flame spray part 32 so that the fourth wide tube 21D is connected to the hot flame And is connected between the head portion 32 and the first and second protective pipes 33, 34 so that the gas is sufficiently preheated as it passes through the fourth wide tube, thereby preventing the phenomenon of liquefaction.

The first protection pipe 33 prevents the second protection pipe 34 from being rapidly oxidized by direct contact with the flame emitted from the injection port 32a and primarily protects the heat received by the second protection pipe 34 The temperature of the outer surface of the second protective pipe 34 directly radiating heat to the outside can be lowered to prevent the user from directly touching the second protective pipe 34 and wearing a large image.

The second protective pipe 34 of the nozzle unit 30 is formed as a cylindrical pipe surrounding the first protection pipe 33 and the flame spraying unit 32 in a spaced apart form.

The second protection pipe 34 prevents the temperature of the flame radiated through the first protection pipe 33 from being mixed with the outside air in an unprotected manner and is mixed with the proper air so that the first protection pipe 33 is heated Can be stably emitted.

For example, the thermal power discharge temperature composed only of the first protective pipe 33 without the second protective pipe 34 is about 100 ° C higher than the thermal power release temperature composed of the second protective pipe 34 and the first protective pipe 33 .

Meanwhile, the gas torch S having a uniform flame-emitting function according to the present invention may further include a thermal power adjusting means 50 connected to the body 20 to control the flow rate of the gas to be injected.

When the thermal power control means 50 rotates in one direction, it is possible to pressurize the nozzles of the coupled gas container B to supply more gas, and when rotated in the other direction, the pressurized nozzles of the gas container B It is possible to cut off the supply of gas and finally shut off the gas supply.

In addition, the thermal power control unit 50 may be connected to the ignition unit to generate a spark as well as to control the thermal power.

The pressure can be generated by the hand pressure to generate a spark by using the elastic member, and as another means, it can be provided to generate spark at a certain point when rotated to the end by an ignition method such as a general gas stove.

In addition, an ignition unit (not shown) may not be provided so as to be manually ignited according to various needs of the consumer, and only the thermal power can be adjusted.

Further, the thermal power control means 50 further includes a lock portion (not shown) to prevent the gas from being ejected without releasing the lock even if it is combined with the gas container B, thereby enhancing the stability and reliability of the product, .

In the above description, the conventionally known technique related to the gas torch S having a uniform flame emission function is omitted, but it can easily be estimated, deduced and reproduced by a person skilled in the related art.

While the present invention has been described with reference to the accompanying drawings, it is to be understood that the invention is not limited to the disclosed embodiments, but, on the contrary, is intended to cover various modifications and equivalent arrangements included within the spirit and scope of the appended claims. Substitutions should be construed as falling within the scope of protection of the present invention.

S: Gas torch B: Gas container
1: injection nozzle 3: connection groove
5: Needle 10: Adapter
11: engaging projection 11a: engaging groove
11b: Steel spring 13: Connection guide
15: insertion portion 20: body
21: first gas communication path 21a: first gas communication path
21b: full width wide portion 21c:
30: nozzle unit 31: second gas communication path
31a: second vaporizing section 31b:
31c: back light width portion 32:
32a: jetting port 33: first protective pipe
34: second protective pipe 50: thermal power control means

Claims (4)

An adapter coupled to the gas container;
A body connected to the adapter in which the first gas communication passage is formed; And
A nozzle unit coupled to the body and having a second gas communication path connected to the first gas communication path and a flame spraying unit;
, ≪ / RTI >

A uniform flame having a liquid fuel leak preventing means composed of a narrow first vaporizing portion provided in the first gas communication passage and having a reduced cross sectional area of the passage and a narrow second vaporizing portion provided in the second gas communication passage and having a cross- Gas torch with radiation function. The method according to claim 1,
Characterized in that each of the first gas communication passage and the second gas communication passage before and after the first vaporizing portion and the second vaporizing portion includes a front and rear wide portion having a relatively larger cross- . 3. The method according to claim 1 or 2,
Wherein the first vaporizing portion of the liquid fuel leakage preventing means has a larger cross-sectional area than the second vaporizing portion. The method of claim 3,
Wherein the nozzle unit includes a first protection tube that surrounds the injection unit in a spaced-apart manner, and a second protection tube that surrounds the first protection tube in a spaced-

The adapter having a plurality of locking projections coupled to an annular outward groove in the periphery of the injection nozzle of the gas container,
Wherein each of the engaging projections has an engaging groove on the inner side, and a steel wire spring for reinforcing the outward elasticity of the engaging projection is engaged with the engaging groove.

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