Firepower concentration structure of flame gun

Abstract

The utility model discloses a flame gun firepower concentration structure, which relates to the flame gun technical field, and comprises a gun body, a gun barrel and a fire concentration assembly, the gun barrel is fixed on the gun body, the fire concentration assembly is arranged at the tail end of the gun barrel, the fire concentration assembly comprises a fixed barrel and an auxiliary barrel, the fixed barrel is detachably fixed at the tail end of the gun barrel through a bolt, and the auxiliary barrel is fixed in the fixed barrel. The fire concentration assembly is arranged at the tail end of the gun barrel, fuel gas sprayed out of the gun barrel is wrapped and concentrated through the fire concentration assembly, meanwhile, external air enters the fire concentration assembly and is mixed with the fuel gas, the fuel gas is sprayed out of the fire concentration assembly, and the fire concentration assembly is arranged at the tail end of the fire concentration assembly. Concentration strength and stability of flames are improved, and flame extinguishing is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of blowtorches, in particular to a blowtorch fire concentration structure. Background Technique

[0002] During the processing of aluminum profiles, long aluminum bars need to be first fed into a kiln for heating, and then the long aluminum bars are cut into several sections by a hydraulic press, and finally transported to an extrusion device for extrusion molding to obtain aluminum profiles. During the extrusion molding process, a push rod is required to push the end of the aluminum bar into the mold. Since the aluminum bar is in a state close to melting after heating, the push rod is likely to adhere to the end of the aluminum bar after pushing the aluminum bar.

[0003] When a blowtorch is in use, if the air jet speed is too fast during air jetting, the contact time between the gas and air is too short, which will cause the flame to fail to form, or the flame is too far from the blowtorch nozzle. At this time, due to strong external wind, the flame will be extinguished, resulting in unstable flame and inconvenient operation. For this reason, we propose a blowtorch fire concentration structure. Content of the Utility Model

[0004] The purpose of the utility model is to provide a blowtorch fire concentration structure to solve the problems raised in the above background technique.

[0005] To achieve the above purpose, the utility model provides the following technical solution: a blowtorch fire concentration structure, including a gun body, a barrel and a fire concentration component. The barrel is fixed on the gun body, and the fire concentration component is arranged at the tail end of the barrel. The fire concentration component includes a fixed cylinder and an auxiliary cylinder. The fixed cylinder is detachably fixed at the tail end of the barrel by bolts, and the auxiliary cylinder is fixed inside the fixed cylinder. A first conical cylinder is fixed at one end of the fixed cylinder away from the barrel, and a second conical cylinder is fixed at one end of the auxiliary cylinder away from the barrel. By arranging the fire concentration component at the tail end of the barrel, the fire concentration component wraps and concentrates the gas ejected from the barrel, and at the same time allows external air to enter and mix with the gas, improving the concentration intensity and stability of the flame and avoiding flame extinction.

[0006] Preferably, the fixed cylinder is evenly provided with first air holes, and the side surface of the auxiliary cylinder is evenly provided with communication holes, so that the flame leaving the nozzle first contacts and burns with air in the fixed cylinder. The fixed cylinder can protect the flame and prevent the flame ejected from the first conical cylinder from being extinguished due to being too far from the nozzle.

[0007] Preferably, the first air holes are located on the side of the fixed cylinder facing the barrel, allowing external air to enter the fixed cylinder along the direction of gas ejection, which can prevent the flame from ejecting from the first air holes.

[0008] Preferably, the length of the second conical cylinder is less than that of the first conical cylinder, so that the air entering the fixed cylinder can be blown towards the gas ejected from the second conical cylinder under the extrusion of the first conical cylinder, improving the flame concentration effect.

[0009] Preferably, linear grooves are uniformly arranged inside the fixed cylinder and the first conical cylinder, and the linear grooves communicate with the outside of the first conical cylinder, facilitating the flow of air inside the fixed cylinder.

[0010] Preferably, an arc-shaped groove is arranged in the communication hole, and the arc-shaped groove is located on the side of the communication hole close to the barrel, facilitating the gas flowing into the fixed cylinder from the first ventilation hole to flow towards the gas in the auxiliary cylinder.

[0011] Preferably, a sleeve is rotatably arranged on the outside of the fixed cylinder, and second ventilation holes are uniformly arranged on the sleeve, which can adjust the size of the first ventilation hole, and thus adjust the amount of air entering the fixed cylinder.

[0012] Preferably, both the second ventilation hole and the first ventilation hole are provided with three, and the radian is 60° for both, which can realize the full opening and full closing of the first ventilation hole.

[0013] Preferably, the sleeve is made of fiberglass material to improve the heat insulation effect of the sleeve and avoid scalding when personnel rotate the sleeve.

[0014] Preferably, the inner diameter of the auxiliary cylinder is larger than the inner diameter of the outlet at the tail end of the barrel. When the gas is ejected from the tail end of the barrel, a negative pressure is formed inside the auxiliary cylinder, facilitating the entry of air from the communication hole into the inside of the auxiliary cylinder to mix with the gas.

[0015] Compared with the traditional technology, the beneficial effects of the present utility model are:

[0016] 1. By arranging the auxiliary cylinder and the fixed cylinder at the tail end of the barrel, the gas ejected from the barrel enters the auxiliary cylinder. Since the inner diameter of the auxiliary cylinder is larger than the inner diameter of the outlet at the tail end of the barrel, when the gas is ejected from the tail end of the barrel, a negative pressure is formed inside the auxiliary cylinder, and the air enters the inside of the auxiliary cylinder from the first ventilation hole and the communication hole to mix and burn with the gas. The fixed cylinder can play a role in preventing wind, improving the stability of the flame, and avoiding the flame from going out;

[0017] 2. Since the length of the second conical cylinder is less than that of the first conical cylinder, the air entering the fixed cylinder can be blown towards the gas flame ejected from the second conical cylinder under the extrusion of the first conical cylinder, thereby improving the flame concentration effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 is a schematic diagram of the overall structure of the present utility model;

[0019] Figure 2 is a schematic diagram of the structure of the sleeve part of the present utility model;

[0020] Figure 3Schematic partial cross-sectional view of the fire concentration component of the present utility model;

[0021] Figure 4 Side view of the internal structure of the fire concentration component of the present utility model.

[0022] In the figure: 1 - gun body; 2 - barrel; 3 - fire concentration component; 4 - fixing cylinder; 5 - auxiliary cylinder; 6 - first conical cylinder; 7 - second conical cylinder; 8 - first ventilation hole; 9 - communication hole; 10 - linear groove; 11 - arc groove; 12 - sleeve; 13 - second ventilation hole. Specific implementation mode

[0023] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without making creative efforts belong to the protection scope of the present utility model.

[0024] Embodiment:

[0025] Please refer to Figures 1 - 4 , in the illustration, a flamethrower fire concentration structure includes a gun body 1, a barrel 2, and a fire concentration component 3. The barrel 2 is fixed on the gun body 1, and the fire concentration component 3 is arranged at the tail end of the barrel 2. The fire concentration component 3 includes a fixing cylinder 4 and an auxiliary cylinder 5. The fixing cylinder 4 is detachably fixed at the tail end of the barrel 2 by bolts, and the auxiliary cylinder 5 is fixed inside the fixing cylinder 4. A first conical cylinder 6 is fixed at one end of the fixing cylinder 4 away from the barrel 2, and a second conical cylinder 7 is fixed at one end of the auxiliary cylinder 5 away from the barrel 2.

[0026] Next, in conjunction with the accompanying drawings, some implementation modes of the present application will be described in detail:

[0027] Please refer to Figures 1 - 4 , by arranging the fire concentration component 3 at the tail end of the barrel 2, the fire concentration component 3 wraps and concentrates the gas ejected from the barrel 2, and at the same time allows external air to enter and mix with the gas to improve the concentration intensity and stability of the flame and prevent the flame from extinguishing.

[0028] Among them, the fixing cylinder 4 is uniformly provided with first ventilation holes 8, and the side surface of the auxiliary cylinder 5 is uniformly provided with communication holes 9, so that the flame leaving the nozzle first contacts and burns with air in the fixing cylinder 4. The fixing cylinder 4 can protect the flame and prevent the flame ejected from the first conical cylinder 6 from extinguishing due to the too far distance from the nozzle. The first ventilation holes 8 are located on the side of the fixing cylinder 4 facing the barrel 2, allowing external air to enter the fixing cylinder 4 along the direction of the gas ejection, which can prevent the flame from ejecting from the first ventilation holes 8.

[0029] Further, linear grooves 10 are evenly arranged inside the fixed cylinder 4 and the first conical cylinder 6. The linear grooves 10 communicate with the outside of the first conical cylinder 6, facilitating the flow of air inside the fixed cylinder 4. An arc-shaped groove 11 is arranged inside the communication hole 9, and the arc-shaped groove 11 is located on the side of the communication hole 9 close to the barrel 2, facilitating the gas flowing into the fixed cylinder 4 from the first ventilation hole 8 to flow towards the fuel gas inside the auxiliary cylinder 5.

[0030] In addition, as Figure 4 shown, the inner diameter of the auxiliary cylinder 5 is larger than the inner diameter of the outlet at the tail end of the barrel 2. When the fuel gas is ejected from the tail end of the barrel 2, a negative pressure is formed inside the auxiliary cylinder 5, facilitating the entry of air from the communication hole 9 into the inside of the auxiliary cylinder 5 to mix with the fuel gas.

[0031] By arranging the auxiliary cylinder 5 and the fixed cylinder 4 at the tail end of the barrel 2, the fuel gas ejected from the barrel 2 enters the auxiliary cylinder 5. Since the inner diameter of the auxiliary cylinder 5 is larger than the inner diameter of the outlet at the tail end of the barrel 2, when the fuel gas is ejected from the tail end of the barrel 2, a negative pressure is formed inside the auxiliary cylinder 5, sucking air into the inside of the auxiliary cylinder 5 from the first ventilation hole 8 and the communication hole 9 to mix and burn with the fuel gas. The fixed cylinder 4 can play a role in wind prevention, improving the stability of the flame and preventing the flame from going out.

[0032] It should be noted that the length of the second conical cylinder 7 is less than the length of the first conical cylinder 6, enabling the air entering the fixed cylinder 4 to be blown towards the fuel gas ejected from the second conical cylinder 7 under the extrusion of the first conical cylinder 6, improving the flame concentration effect.

[0033] Please refer to Figure 2 , in this embodiment, a sleeve 12 is rotatably arranged outside the fixed cylinder 4. Second ventilation holes 13 are evenly arranged on the sleeve 12, which can adjust the size of the first ventilation hole 8, and thus adjust the amount of air entering the fixed cylinder 4. The sleeve 12 is made of fiberglass material to improve the heat insulation effect of the sleeve 12 and prevent scalding of personnel when rotating the sleeve 12. At the same time, both the second ventilation holes 13 and the first ventilation holes 8 are provided with three, and the arc degrees are both 60°, so as to realize the full opening and full closing of the first ventilation hole 8.

[0034] It should be noted that in this article, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the term "comprising", "including" or any other variant thereof is intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements not only includes those elements, but may also include other elements not expressly listed, or may also include elements inherent to such process, method, article or device.

[0035] Although embodiments of the present utility model have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principle and spirit of the present utility model. The scope of the present utility model is defined by the appended claims and their equivalents.

Claims

1. A flamethrower firepower concentration structure, characterized in that: include: A gun body (1), a gun barrel (2) and a fire collection assembly (3), wherein the gun barrel (2) is fixed on the gun body (1), the fire collection assembly (3) is arranged at the rear end of the gun barrel (2), the fire collection assembly (3) comprises a fixed tube (4) and an auxiliary tube (5), the fixed tube (4) is detachably fixed to the rear end of the gun barrel (2) by means of bolts, the auxiliary tube (5) is fixed in the fixed tube (4), a first conical tube (6) is fixed to the end of the fixed tube (4) away from the gun barrel (2), and a second conical tube (7) is fixed to the end of the auxiliary tube (5) away from the gun barrel (2).

2. A flamethrower firepower concentration structure according to claim 1, characterized in that: The fixing tube (4) is evenly provided with first air holes (8), and the side surface of the auxiliary tube (5) is evenly provided with communication holes (9).

3. A flamethrower firepower concentration structure according to claim 2, characterized in that: The first air vent (8) is located on a side of the fixing tube (4) facing the gun barrel (2).

4. A flamethrower firepower concentration structure according to claim 2, characterized in that: The length of the second conical tube (7) is shorter than the length of the first conical tube (6).

5. A flamethrower firepower concentration structure according to claim 1, characterized in that: Linear grooves (10) are evenly arranged inside the fixed cylinder (4) and the first conical cylinder (6), and the linear grooves (10) are connected to the outside of the first conical cylinder (6).

6. A flamethrower firepower concentration structure according to claim 2, characterized in that: An arc-shaped groove (11) is provided in the communicating hole (9), and the arc-shaped groove (11) is located on a side of the communicating hole (9) close to the gun barrel (2).

7. A flamethrower firepower concentration structure according to claim 2, characterized in that: A sleeve (12) is rotatably provided on the outer side of the fixed cylinder (4), and second air holes (13) are evenly provided on the sleeve (12).

8. A flamethrower firepower concentration structure according to claim 7, characterized in that: The second air holes (13) and the first air holes (8) are each provided with three, and the arc angle of each of the holes is 60°.

9. A flamethrower firepower concentration structure according to claim 7, characterized in that: The sleeve (12) is made of glass fiber material.

10. A flamethrower firepower concentration structure according to claim 1, characterized in that: The inner diameter of the auxiliary tube (5) is larger than the inner diameter of the outlet at the rear end of the gun barrel (2).

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