Fire extinguisher launcher

Abstract

The present invention relates to a fire extinguishing projectile launcher. One embodiment can launch a fire extinguishing projectile without using explosives and can be used to extinguish wildfires or fires in high-rise buildings. A fire extinguishing projectile launcher according to an embodiment of the present invention comprises: a gun barrel including rifling arranged spirally on its inner surface; and a launching roller that provides propulsion to the fire extinguishing projectile.

Description

Technology Field

[0001] The present invention relates to a fire extinguishing projectile launcher. One embodiment can launch a fire extinguishing projectile without using explosives and can be used to extinguish wildfires or fires in high-rise buildings. Background Technology

[0002] A fire extinguishing bullet is a bullet containing a fire extinguishing agent to suppress a fire. Fire extinguishing bullets contain a fire extinguishing agent inside the casing, and can extinguish a fire by firing it at a fire and detonating it to release the internal fire extinguishing agent.

[0003] Traditionally, they were launched by throwing them by hand or using explosive launchers. When thrown by hand, they could not be sent over long distances, posing a problem that made them unusable for wildfires or fires in high-rise buildings; meanwhile, when using explosives, the noise and vibration caused by the explosion increased discomfort and anxiety, and there was even a risk of fire.

[0004] To solve these problems, a technology was developed to launch fire extinguishing projectiles using compressed air instead of explosives. However, there is a problem in that it requires a long time to recharge the air to generate the compressed air. Prior art literature

[0005] Korean Registered Patent Publication No. 10-2328459 The problem to be solved

[0006] The present invention aims to provide a fire extinguishing projectile launcher capable of launching a fire extinguishing projectile over a long distance without using explosives.

[0007] In addition, the present invention is advantageous for early firefighting because it can be loaded and fired quickly.

[0008] In addition, the present invention can effectively respond to wildfires or fires in high-rise buildings by increasing the range of the fire extinguishing bomb. means of solving the problem

[0009] A fire extinguishing projectile launcher according to an embodiment of the present invention comprises: a gun barrel including rifling arranged spirally on an inner surface; and a launching roller that provides propulsion to the fire extinguishing projectile. One embodiment may further include a rotating roller that turns the direction of movement of the fire extinguishing projectile toward the direction in which the rifling is formed when the fire extinguishing projectile is moved by the launching roller. Additionally, another embodiment may further include a height adjustment means for adjusting the launch angle of the fire extinguishing projectile, a direction adjustment means for adjusting the launch direction of the fire extinguishing projectile, a sighting means for accurately aiming at a target, and a launcher that supports the components.

[0010] The above-mentioned barrel includes a firing hole that allows the side of the fire extinguishing projectile to be opened when the fire extinguishing projectile is placed at the firing position.

[0011] The above-mentioned gun barrel may be divided into a rear end positioned on the side for loading the fire extinguishing projectile and a front end positioned on the side for discharging the fire extinguishing projectile to the outside.

[0012] The above steel wire can be divided into a rear steel wire disposed on the inner surface of the rear end and a front steel wire disposed on the inner surface of the front end.

[0013] The helical pitch of the above-mentioned shear wire may be greater than the helical pitch of the above-mentioned rear shear wire.

[0014] The launching roller contacts the side of the fire extinguishing projectile through the launching hole and provides propulsion to the fire extinguishing projectile. Effects of the invention

[0015] A fire extinguishing projectile launcher according to an embodiment of the present invention can launch a fire extinguishing projectile over a long distance without using explosives.

[0016] In addition, the present invention is advantageous for early firefighting because it can be loaded and fired quickly.

[0017] In addition, the present invention can effectively respond to wildfires or fires in high-rise buildings by increasing the range of the fire extinguishing bomb. Brief explanation of the drawing

[0018] FIG. 1 illustrates a fire extinguishing projectile launcher according to an embodiment of the present invention. FIG. 2 illustrates a fire extinguishing projectile launcher according to another embodiment of the present invention. Fig. 3 is a perspective view showing a cross-section of Fig. 1. Figure 4 is a perspective view showing a cross-section of Figure 2, illustrating the arrangement of fire extinguishing bombs. Specific details for implementing the invention

[0019] Preferred embodiments of the present invention are described below with reference to the attached drawings. However, embodiments of the present invention may be modified in various other forms, and the scope of the present invention is not limited to the embodiments described below. Furthermore, embodiments of the present invention are provided to more completely explain the present invention to those skilled in the art. Accordingly, the shapes and sizes of elements in the drawings may be exaggerated for clearer explanation, and elements indicated by the same reference numerals in the drawings are the same elements. Additionally, the same reference numerals are used throughout the drawings for parts having similar functions and operations. Furthermore, throughout the specification, the term "comprising" a component means that, unless specifically stated otherwise, it does not exclude other components but may include additional components.

[0021] A fire extinguishing projectile launching device (100) according to an embodiment of the present invention comprises: a gun barrel (120) including rifling wires (123, 124) arranged spirally on an inner surface; and a launching roller (130) that provides propulsion to a fire extinguishing projectile (1000). One embodiment may further include a rotating roller (140) that turns the direction of movement of the fire extinguishing projectile (1000) toward the direction in which the rifling wires (123, 124) are formed when the fire extinguishing projectile (1000) moves by the launching roller (130). Additionally, another embodiment may further include a height adjustment means (150) for adjusting the launch angle of the fire extinguishing projectile (1000), a direction adjustment means (160) for adjusting the launch direction of the fire extinguishing projectile (1000), a sighting means (170) for accurately aiming at a target, a fire extinguishing projectile (1000) supply device (180), and a launcher (110) that supports the components.

[0023] The above-mentioned barrel (120) provides a path for the fire extinguishing projectile (1000) to travel after gaining propulsion, thereby causing the fire extinguishing projectile (1000) to fly far in the correct direction. The above-mentioned barrel (120) may have a shape such as a hollow pipe.

[0024] Referring to FIGS. 1 to 4, the gun barrel (120) may be divided into a front end (121) and a rear end (122), and may include rifling (123, 124) on the inner surface. Additionally, the gun barrel (120) may include a firing hole (125) and a rotation hole (126) formed by penetrating a part of the side.

[0025] The rear end (122) is the side of the barrel (120) closer to the part where the fire extinguishing projectile is mounted, and the front end (121) is the side of the barrel (120) closer to the hole where the fire extinguishing projectile (1000) is discharged. The length ratio of the rear end (122) and the front end (121) is 3:1 to 4:1, so the rear end (122) may be longer.

[0026] In the above rear section (122), a portion for mounting a fire extinguishing projectile, a front steel wire (123), a firing hole (125), and a rotation hole (126) may be arranged. In the above rear section (122), the portion for mounting the fire extinguishing projectile is partially open upward or to one side, and the fire extinguishing projectile (1000) can be moved and mounted through the open portion (see FIG. 4).

[0027] The above-mentioned front section (121) has a hole formed therein through which a fire extinguishing bomb (1000) is discharged, and may include a shear wire (123) on its inner surface. The thickness of the above-mentioned front section (121) (length obtained by subtracting the inner diameter from the outer diameter) may be greater than that of the above-mentioned rear section (122).

[0028] The above-mentioned rear reinforcing wire (124) and front reinforcing wire (123) perform the function of increasing the range by causing the fire extinguishing projectile (1000) to rotate as it passes through the barrel (120), as if it were arranged in a conventional gun barrel (120). The above-mentioned rear reinforcing wire (124) and front reinforcing wire (123) may be formed by protruding at a certain height on the inner surface of the gun barrel (120) or by creating a groove, and may be spiral.

[0029] Referring to FIGS. 3 and 4, the spiral pitches of the rear steel wire (124) and the front steel wire (123) are different from each other. The spiral pitch refers to the distance traveled in the axial direction during one rotation cycle of the spiral, expressing the degree of twisting of the spiral. If the spiral pitch is large, the spiral is less twisted, so the rotation of the fire extinguishing bomb (1000) decreases, and if the spiral pitch is large, the spiral is more twisted, so the rotation of the fire extinguishing bomb (1000) increases.

[0030] In one embodiment, the spiral pitch of the rear steel wire (124) may be smaller than the spiral pitch of the front steel wire (123). In this case, while the fire extinguishing projectile (1000) passes through the rear section (122), it receives propulsion from the launch roller (130) and rotates significantly by the rear steel wire (124). Next, when the fire extinguishing projectile (1000) moves to the front section (121), it rotates less by the front steel wire (123). The reason for applying different spirals to the steel wires (123, 124) in this manner is that in the present invention, the fire extinguishing projectile (1000) is not launched by explosives but is launched by gradually increasing propulsion from the launch roller (130).

[0031] Referring to FIG. 4, the fire extinguishing projectile (1000) obtains propulsion force from the launching roller (130) and moves to the location where the rear end steel wire (124) is located. It obtains propulsion force sequentially from the plurality of launching rollers (130) and continues to obtain propulsion force from the launching roller (130) even after reaching the location where the rear end steel wire (124) is located. Therefore, if the spiral pitch of the steel wire in the rear end (122) is large, sufficient rotational force cannot be imparted to the fire extinguishing projectile (1000). However, if the steel wire with a spiral pitch that is too small continues until discharge, the propulsion direction of the fire extinguishing projectile (1000) changes at the moment it is discharged from the gun barrel (120), making it difficult to accurately reach the target. To solve this problem, it is preferable that the front steel wire (123) of the front end (121) has a larger spiral pitch than the rear end steel wire (124). In one embodiment, considering the distance and accuracy, the spiral pitch of the front steel wire (123) may be 1.3 to 1.5 times greater than the spiral pitch of the rear steel wire (124).

[0032] The launch hole (125) is a hole that allows the launch roller (130) to come into contact with the fire extinguishing projectile (1000). The launch hole (125) may be positioned through one side of the rear end (122) and may be positioned on both sides as shown in FIGS. 1 and FIGS. 2. At least one launch hole (125) may be positioned at a location corresponding to the position of the launch roller (130), and if a plurality of launch rollers (130) are arranged in a row, the launch holes (125) may be positioned in a row on the side of the rear end (122) to correspond to this.

[0033] The rotation hole (126) is a hole that allows the rotation roller (140) to come into contact with the fire extinguishing projectile (1000). The rotation hole (126) may be positioned below the rear end (122). The rotation hole (126) may be positioned at a location corresponding to the position of the rotation roller (140), and with reference to FIGS. 3 and 4, it may be positioned behind the firing hole (125) (below the part where the fire extinguishing projectile is mounted).

[0035] The launching roller (130) rotates in contact with the fire extinguishing projectile (1000) to cause the fire extinguishing projectile (1000) to have propulsion. The launching roller (130) may include at least one roller and a driving device for driving the roller.

[0036] Referring to FIG. 1, an equal number of rollers may be arranged facing each other on both sides of the gun barrel (120). Additionally, as shown in FIG. 1, two rollers may be arranged in a row on each side of the gun barrel (120), and if necessary, three or more rollers may be arranged in a row.

[0037] The roller is rotated by the operation of the drive device, and the surface in contact with the fire extinguishing projectile (1000) may have a 'U'-shaped indentation. Through this, the roller has a shape corresponding to the side shape of the fire extinguishing projectile (1000), thereby allowing it to be in close contact with the fire extinguishing projectile (1000) and efficiently transmit propulsion force. The cross-section of the roller (a surface perpendicular to the axis of rotation, which crosses the part that contacts the fire extinguishing projectile (1000) as the roller rotates) may be parallel to the firing direction of the gun barrel (120).

[0038] The above driving device may be a motor, etc., and is not particularly limited as long as it is capable of rotating the roller.

[0040] The above-mentioned rotating roller (140) rotates in contact with the fire extinguishing bullet (1000), thereby causing the fire extinguishing bullet (1000) to rotate in the spiral direction of the steel wire. The above-mentioned rotating roller (140) may include at least one roller and a driving device for driving the roller.

[0041] Referring to FIG. 4, a roller may be positioned below the gun barrel (120), and the fire extinguishing projectile (1000) may come into contact with the side of the fire extinguishing projectile (1000) before the projectile is propelled by the launching roller (130).

[0042] The roller may be positioned at a certain angle to the firing direction of the gun barrel (120). More specifically, the cross-section of the roller (a plane perpendicular to the axis of rotation, which crosses the part that contacts the fire extinguishing projectile (1000) as the roller rotates) may be positioned at an angle of 5 to 15 degrees relative to the firing direction of the gun barrel (120), and preferably may be positioned at an angle corresponding to the spiral direction of the rear end reinforcing wire (124). In this case, the fire extinguishing projectile (1000) may move forward by the rolling of the roller while rotating in the spiral direction of the rear end reinforcing wire (124). Since the inner diameter of the gun barrel (120) and the outer diameter of the fire extinguishing projectile (1000) are similar in size, the fire extinguishing projectile (1000) moves forward and rotates in the spiral direction due to the rotation of the roller. Through this, the fire extinguishing projectile (1000) can rotate better, thereby increasing the firing distance. The surface of the roller that contacts the fire extinguishing projectile (1000) may be flat or protruding. Since the roller contacts the fire extinguishing projectile (1000) at a position 5 to 15 degrees relative to the longitudinal direction of the fire extinguishing projectile (1000), having a 'U'-shaped groove, such as that of the roller of the launching roller (130), may actually hinder contact.

[0043] As previously explained, the rotary roller (140) can also perform the function of pushing the fire extinguishing projectile (1000) mounted on the fire extinguishing projectile mounting part forward. Referring to FIG. 4, even if the fire extinguishing projectile (1000) is mounted, it may not come into contact with the launch roller (130). Therefore, the fire extinguishing projectile (1000) can be moved forward via the rotary roller (140) so that the fire extinguishing projectile (1000) comes into contact with the launch roller (130). It is preferable for the launch roller (130) to operate continuously in order to provide a stronger propulsion force to the fire extinguishing projectile (1000) and enable continuous firing. By moving the fire extinguishing projectile (1000) to the launch roller (130) via the rotary roller (140), the launch roller (130) can strongly pull the fire extinguishing projectile (1000) while continuously maintaining a high rotational force, and continuous firing is possible.

[0044] The above driving device may be a motor, etc., and is not particularly limited as long as it is capable of rotating the roller.

[0046] The height adjustment means (150) adjusts the upper and lower firing angle of the gun barrel (120). The height adjustment means (150) may include means for adjusting the angle of the gun barrel (120), means for fixing said means, etc. The height adjustment means (150) may apply various types of technology used to adjust the firing angle of the gun barrel (120) in fields related to projectiles, and is not particularly limited.

[0048] The above-mentioned direction control means (160) controls the left and right firing angles of the gun barrel (120). The above-mentioned direction control means (160) may include means for controlling the angle of the gun barrel (120), means for fixing said means, etc. The above-mentioned direction control means (160) may apply various types of technology used to control the firing direction of the gun barrel (120) in fields related to projectiles, and is not particularly limited.

[0050] The above-mentioned aiming means (170) is a means for aiming at a target so that the fire extinguishing projectile (1000) can land accurately on the target. Referring to FIG. 1, the aiming means (170) may include a sight and a front sight. The front sight may be placed at the front end (121) of the gun barrel (120), and the aiming means (170) may be placed at the rear end (122) of the gun barrel (120) or at the rear end of the launcher (110). In FIG. 1, the aiming means (170) includes several scales (represented by grooves). The scales may be used differently depending on the distance to the target, and the distance to the target may be indicated. The aiming means (170) may apply various types of techniques used to aim at targets in the field related to projectiles, and is not particularly limited.

[0052] The above fire extinguishing projectile (1000) supply device (180) is a device that supplies fire extinguishing projectiles (1000) to the fire extinguishing projectile mounting portion of the above gun barrel (120). Since the present invention can fire fire extinguishing projectiles (1000) continuously, the fire extinguishing projectile (1000) supply device (180) may automatically and continuously supply fire extinguishing projectiles (1000). The fire extinguishing projectile (1000) supply device (180) may apply various types of technology used to supply projectiles in fields related to projectiles, and is not particularly limited.

[0054] The launcher (110) supports and fixes components such as the gun barrel (120), launch roller (130), rotation roller (140), height adjustment means (150), direction adjustment means (160), and aiming means (170). The launcher (110) may include a means of movement such as wheels to allow the fire extinguishing projectile launcher (100) to be moved easily. The launcher (110) may apply various types of technology used in fields related to projectiles and is not particularly limited.

[0056] The present invention is not limited by the embodiments described above and the attached drawings, but is intended to be limited by the appended claims. Accordingly, various substitutions, modifications, and changes may be made by those skilled in the art within the scope of the technical concept of the present invention as described in the claims, without departing from the technical spirit of the invention, and such are also to be considered to fall within the scope of the present invention. Explanation of the symbols

[0057] 100: Fire extinguishing grenade launcher, 110: Launcher, 120: Gun barrel, 121: Front section, 122: Rear section, 123: Front steel wire, 124: Rear steel wire, 125: Launching port, 126: Rotating port, 130: Launching roller, 140: Rotating roller, 150: Height adjustment means, 160: Direction adjustment means, 170: Aiming means, 180: Fire extinguishing grenade supply device, 1000: Fire extinguishing grenade

Claims

Claim 1 A fire extinguishing projectile launching device comprising: a gun barrel including rifling arranged spirally on an inner surface; a launching roller providing propulsion to a fire extinguishing projectile; and a rotating roller that turns the direction of movement of the fire extinguishing projectile toward the direction in which the rifling is formed when the fire extinguishing projectile is moved by the launching roller; wherein the gun barrel is divided into a rear end portion positioned on the side for loading the fire extinguishing projectile and a front end portion positioned on the side for discharging the fire extinguishing projectile to the outside; wherein the gun barrel includes a launching hole that causes the side of the fire extinguishing projectile to be opened when the fire extinguishing projectile is placed at a launching position, and a rotating hole formed at a position corresponding to the rotating roller in the rear end; wherein the launching roller contacts the side of the fire extinguishing projectile through the launching hole to provide propulsion to the fire extinguishing projectile, and the rotating roller is positioned at an angle of 5 to 15 degrees relative to the launching direction, so that when the rotating roller moves the fire extinguishing projectile forward, the fire extinguishing projectile moves while rotating along the spiral direction of the rifling. Claim 2 delete Claim 3 A fire extinguishing projectile launcher according to claim 1, wherein the steel wire is divided into a rear steel wire disposed on the inner surface of the rear end and a front steel wire disposed on the inner surface of the front end, and the spiral pitch of the front steel wire is greater than the spiral pitch of the rear steel wire.

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