KR20240109695A - A life-saving tube launcher using air pressure - Google Patents

Abstract

The present invention is to launch a life-saving life-saving tube using pneumatic pressure to safely rescue people by propelling the life-saving tube with air compression force to reach the drowning person's position quickly and accurately to people who are in distress by falling into the water on the water or at sea. This device relates to a pneumatic device consisting of a main body of a launch device in the form of a pistol having a handle and a rope storage port, and a projectile equipped with a life-saving tube that is detachably coupled to the outlet side of the main body and is launched while being separated from the main body by air compression force. In the life-saving life tube launcher using, the main body of the launcher includes a barrel, a cylinder installed longitudinally inside the barrel and filled with air, a piston that slides inside the cylinder, and A piston rod integrally connected to the piston, an elastic spring inside the piston rod, one side of which is fixed to the body and the other side to the piston to elastically support the piston, a loading lever for compressing and loading the piston rod, and the handle of the handle. It includes a trigger assembly installed inside, and the trigger assembly consists of a seesaw-type latch that contacts a stopper at the tip of the piston rod to maintain or release the compressed state of the piston rod and a trigger that seesaw-rotates the latch around a pin. The projectile is characterized in that it is combined with a life-saving tube accommodating part, an air chamber separately connected to the life-saving tube accommodating part, a guide tube extrapolated to the cylinder, and a propulsion unit having an air ball.

Description

Life-saving tube launcher using air pressure {A life-saving tube launcher using air pressure}

The present invention relates to a life-saving life tube launching device using pneumatic pressure. More specifically, the present invention relates to a life-saving life tube launching device using pneumatic pressure, and more specifically, by propelling and launching life-saving tubes to people in distress after falling into the water on the water or at sea using air compression force to quickly and accurately reach the drowning person's location. This relates to a life-saving life tube launching device using pneumatic pressure that enables the safe rescue of people.

Generally, life-saving devices such as life-saving tubes filled with air are used for lifesaving purposes when engaging in leisure activities, fishing, or swimming on the water or at sea.

These life-saving devices are used to rescue victims by having the rescuer throw the life-saving device around the victim. The life-saving tube, which is filled with air and floats on the water due to the levitation force, cannot be thrown a long distance, so it is not safe. There are limitations in lifesaving activities as it is not easy to throw a life-saving tube from the secured throwing position to a distress point far away.

In addition, if a distress occurs at sea, as time passes after the accident, due to the influence of current speed or current, the person will drift away from the point of distress in an instant. Therefore, in an urgent situation requiring urgent rescue, skilled water safety personnel or lifeboats are required. Without marine rescue equipment, it is impossible to quickly reach the person in distress, and especially in bad weather, rescue operations become more difficult.

As a way to solve this problem, a technology was developed to save lives by launching a life-saving tube around the drowning person as a propulsion means to cause the life-saving tube to expand, and it was disclosed in Patent Nos. 1064610, 1790940, and 1526908. there is.

These prior technologies all rescue victims by inflating them by firing life-saving tubes around the drowning person using propulsion means such as gunpowder or compressed gas. This has the effect of being able to throw a lifesaving tube a long distance compared to throwing it with the rescuer's hand. The structure of the propulsion device is complex, making it impractical and bulky, making it difficult to carry and handle. In the case of gunpowder, there is a risk of explosion, and the structure using compressed liquefied gas only inconveniences the need to replace the gas cartridge. Another problem is that the production cost is very expensive.

The purpose of the present invention is to solve the above-mentioned problems, by strongly launching a projectile containing a life-saving tube using instantaneous air compression force, thereby launching a life-saving tube for lifesaving using air pressure that can accurately reach a drowning person with a life-saving tube. To provide a device.

Another object of the present invention is to provide a lifesaving tube launching device for lifesaving using pneumatic pressure that can quickly launch a lifesaving tube over a long distance by increasing the speed by constructing a cylinder firing compressed air in a venturi structure.

The present invention, as a means to achieve this purpose, is a life-saving tube that is detachably coupled to the outlet side of the main body and is launched while being separated from the main body by air compression force. In the life-saving life tube launching device using pneumatic pressure consisting of a projectile equipped with,

The main body of the launch device includes a barrel with a predetermined length, a cylinder installed inside the barrel extending from the middle position to the end in the longitudinal direction and filled with air, and a sealing member that slides inside the cylinder. A piston, a piston rod that is integrally connected to the piston and enters and exits the inside of the cylinder, an elastic spring inside the piston rod, one side of which is fixed to the main body and the other side of the piston to elastically support the piston, and the barrel of the gun. It includes a loading lever installed through the incision hole to compress and load the piston rod, and a trigger assembly installed inside the handle,

The trigger assembly consists of a seesaw-type latch that contacts a stopper at the tip of the piston rod to maintain or release the compressed state of the piston rod, and a trigger that seesaw-rotates the latch around a pin,

The projectile is in the form of a streamlined rocket, is equipped with a plurality of water inlet holes, is accommodated in a folded state inside a cap that is easily opened by pressure, and is connected to a life-saving tube with a rope in the rope storage port, and is connected to the life-saving tube through the life-saving tube and the valve. It consists of a life-saving tube accommodating part with a built-in life-saving tube expansion means consisting of a connected CO₂ compressed gas cartridge and a water detection sensor, and a propulsion part with a guide tube and an air ball extrapolated to an air chamber and cylinder separately connected to the life-saving tube accommodating part. A life-saving tube launching device for lifesaving using pneumatic pressure is provided, which is characterized by a combined configuration.

In addition, the inner peripheral surface of the cylinder is characterized by a spiral protrusion that forms a vortex of air and increases the flow rate.

In addition, the outlet side of the cylinder is characterized by a venturi portion that increases the flow rate by temporarily narrowing the cross-sectional area and reducing pressure.

According to the present invention, the momentary elastic force of the compressed elastic spring injects the air filled inside the cylinder with the driving force of the piston to launch the projectile containing the life-saving tube, so that the projectile can accurately reach a long distance, In particular, since it does not use liquefied gas or gunpowder as in the past, it has the advantage of solving the problem of misfire due to the risk of explosion or gas leakage.

In addition, the venturi structure installed at the rear end of the cylinder increases the firing speed of compressed air, which also has the effect of throwing the projectile a long distance.

1 is an overall perspective view according to an embodiment of the present invention.
Figure 2 is a cross-sectional view of the overall internal structure of the launch device according to an embodiment of the present invention.
Figure 3 is a partial cross-sectional view of a projectile being launched from the barrel of the launch device.
Figure 4 is an enlarged internal cross-sectional view with the trigger loaded.
Figure 5 is a cross-sectional view of the internal structure of the launch vehicle combined with the launch device.
Figure 6 shows the expansion state of the life tube separated from the launch vehicle.

Hereinafter, embodiments of the present invention will be described in detail with reference to the attached drawings, focusing on the parts necessary to understand the operation and action according to the present invention.

The embodiments described in this specification and the configurations shown in the drawings are only one of the most preferred embodiments of the present invention and do not represent the entire technical idea of the present invention, so various modifications that can replace them at the time of filing the present application You must understand that there may be.

While describing embodiments of the present invention, unnecessary technical content that is well known in the technical field to which the present invention belongs and that is not directly related to the present invention will be omitted in order to convey the gist of the present invention more clearly and not obscure it.

Figure 1 is an overall perspective view according to an embodiment of the present invention, Figure 2 is a cross-sectional view of the overall internal structure of a launch device according to an embodiment of the present invention, and Figure 3 is a state in which a projectile is launched from the barrel of the launch device. It is a partial cross-sectional view, Figure 4 is an enlarged internal cross-sectional view in a state where the trigger is loaded, Figure 5 is a cross-sectional view of the internal structure of the projectile combined with the launch device, and Figure 6 is a diagram of the expanded state of the life-saving tube separated from the projectile.

As shown in FIGS. 1 to 6, the life-saving life tube launcher using pneumatic pressure of the present invention includes a main body 100 of the launcher having a handle 1 in the form of a pistol, and an outlet side of the main body 100. It consists of a projectile 300 having a lifesaving tube 200 that is detachably coupled to and launched while being separated from the main body 100 by air compression force.

The main body 100 of the launch device includes a barrel 10 having a predetermined length, a cylinder 20 installed inside the barrel 10 extending from the middle position to the end in the longitudinal direction and filled with air, and the cylinder A piston (40) provided with a sealing member (30) that slides inside the cylinder (20), a piston rod (41) integrally connected to the piston (40) and moved into and out of the cylinder (20). Inside the piston rod 41, one side is fixed to the main body 100 and the other side is fixed to the piston 40, and an elastic spring 42 elastically supports the piston 40, and the cut hole 11 of the barrel 10. It includes a loading lever (50) installed through the piston rod (41) to compress and load the piston rod (41), and a trigger assembly (60) installed inside the handle (1).

The trigger assembly 60 is in contact with the stopper 43 at the tip of the piston rod 41 and has a seesaw-type latch 61 that maintains or releases the compressed state of the piston rod 41, and the latch is centered around the pin 62. It consists of a trigger (63) that rotates the seesaw.

Here, the seesaw-type lock 61 is installed so that one end is elastically supported by a spring 64.

In addition, on the inner peripheral surface of the outlet side of the cylinder 20, a spiral protrusion 21 that forms a vortex of air and a venturi portion 22 that temporarily narrows the cross-sectional area of the cylinder 20 to increase the flow rate are sequentially formed. .

The launch vehicle 300 is in the form of a streamlined rocket, and includes a lifesaving tube 200 accommodated in a folded state inside which is provided with a plurality of water inlet holes 71 and a cap 72 that is easily opened by pressure. A life-saving tube receiving unit (80) containing a life-saving tube expansion means (70) consisting of a CO₂ compressed gas cartridge (74) and a water detection sensor (75) connected to the life-saving tube (200) via a valve (73), and the life-saving tube receiving unit (80) It consists of an air chamber 91 separately connected to the tube receiving portion 80 and a propulsion portion 90 having a guide tube 92 extrapolated to the venturi portion 22 inside the barrel 10.

The propulsion unit 90 has wing pieces 93 that protrude at regular intervals to enable straightness and function as a rudder during launch, and an air hole 94 is drilled at the base of the wing piece 93 to communicate with the air chamber 91. .

In addition, a rope storage port 12 is installed at the lower part of the exit side of the barrel 10 of the main body 100, and one end of the rope 13 wound inside it is built into the life-saving tube receiving portion 80 of the projectile 300. It is connected to the life tube (200).

The present invention configured in this way does not launch the life-saving tube 200 using liquefied gas or gunpowder as in the prior art, but quickly launches the life-saving tube projectile 300 to the drowning person using air compression force using the cylinder 20 and the piston 40. The specific effects of enabling safe rescue through accurate launch are as follows.

Figure 2 is a cross-sectional view of the entire internal structure of a launch device according to an embodiment of the present invention, and shows a loaded state in which the projectile 300 can be launched.

Specifically, while the projectile 300 is detachably coupled to the main body 100 of the launch device, the piston rod 41 integrated with the piston 40 compresses the bullet spring 42 by pulling the loading lever. While doing so, it retreats and the latch of the trigger assembly (60) is caught by the stopper (43) of the piston rod (41), thereby maintaining the loaded state. At this time, the piston (40) retreats inside the cylinder (20) and the projectile ( The air sucked from the air hole 94 of 300 is in a filled state.

Here, the projectile 300 is coupled to the propulsion unit 90 with the guide tube 92 inserted into the outlet side of the barrel 10 of the launch device, and a life-saving tube receiving unit separately coupled to the propulsion unit 90 ( 80) is equipped with a life-saving tube expansion means (70) consisting of a valve (73), a CO₂ compressed gas cartridge (74), and a water detection sensor (75) with the life-saving tube (200) in a folded state, so that water flows through the water inlet hole (71). ), CO₂ compressed gas is supplied to the inside of the lifesaving tube 200 by the operation of the water detection sensor, expands, and separates the cap 72, making it possible to save the drowning person. This structure is already known. Detailed explanations are omitted.

Therefore, when firing the projectile 300 to rescue a drowning person in this loaded state, if the trigger 63 installed on the handle 1 of the main body 100 is pulled, the trigger 63 moves in the direction of the arrow as shown in FIG. As it is pulled, the lock is rotated in a seesaw operation to release the stuck state of the stopper (43). At the same time, the return elastic force of the elastic spring (42) causes the piston (40) to move into the inside of the cylinder (20) together with the piston rod (41). It instantly enters and pushes out the air filled inside the cylinder 20 while compressing it, thereby applying air pressure with a strong force to the air chamber 91 formed in the propulsion unit 90 of the projectile 300. When the main body 100 is separated and launched and the projectile 300 is thrown around the drowning person, water flows in through the water inlet hole 71 of the life-saving tube receiving part 80, and the life-saving tube 200 is blown by compressed gas. At the same time as it expands, the cap 72 is separated and floats on the water, thereby safely rescuing the drowning person. Since the rope 13 wound around the rope storage port 12 is connected to the life-saving tube 200, the projectile 300 is launched. When this happens, the rope 13 is also released from the rope storage port 12 and launched at the same time, allowing the drowned person to be towed safely.

In particular, a spiral protrusion 21 and a venturi portion 22 that temporarily narrow the cross-sectional area of the cylinder 20 are sequentially formed on the inner peripheral surface of the outlet side of the cylinder 20, so that the air from the cylinder 20 flows into a spiral when discharged. A vortex is generated by the protrusion 21 and the flow rate is first increased, and then, as the pressure is lowered in the venturi unit 22, the flow rate is secondarily increased and discharged, so that the projectile 300 can be launched with a very strong pressure. It will happen.

As is well known, the venturi part 22 has a structure in which the cross-sectional area is narrowed as the diameter of the cylinder 20 is temporarily reduced, so while the pressure is reduced according to Bernoulli's theorem, the venturi part 22 is increased by an increase in speed. The flow speed of the air passing through increases rapidly.

Therefore, it is possible to launch the projectile 300 very strongly. The projectile 300 is separated from the main body 100 of the launch device, and the guide tube 92 of the propulsion unit 90 is connected to the venturi of the cylinder 20. Since it is launched in a state extrapolated to the part 22, the straight line and direction of the projectile 300 are maintained by maintaining the center until the guide tube 92 exits the cylinder 20, so that it can be accurately thrown at a location close to the drowned person. There will be.

In addition, the rope 13 may be made of synthetic fiber yarn that has excellent tensile strength and tear strength, is light, and has buoyancy. In this case, the synthetic fiber yarn is stranded together with luminous yarn or fluorescent yarn, or the stranded surface is stranded with luminous yarn or luminous yarn. It is desirable to coat it with fluorescent paint to facilitate identification at night.

The present invention does not obtain the propulsion force of the projectile 300 by the explosion of compressed gas or gunpowder as in the prior art, but uses a propulsion device using a cylinder 20, a piston 40, a piston rod 41, a bullet spring 42, etc. Since the projectile 300 is replaced with a new one and the loading lever is manually pulled to load, the projectile 300 can be fired continuously. When the loading lever is pulled after firing the projectile 300, the piston rod ( As 41) retracts, the stopper 43 installed on its inner end passes while rotating by pushing the latch of the trigger assembly 60, and at the same time, the latch rotates back to its original position by the spring 64 to prevent the stopper 43 from moving forward. By keeping the trigger, the loaded state for firing is maintained, and when the trigger (63) is pulled in this state, the catch is rotated in a seesaw operation as described above, thereby releasing the locking force of the stopper (43) and releasing the piston (40) with a strong force. By moving forward, the projectile 300 is launched.

Above, an embodiment of the present invention has been described, but those skilled in the art can add, change, delete or add components without departing from the spirit of the present invention as set forth in the patent claims. The present invention may be modified and changed in various ways by addition, etc., and this will also be included within the scope of rights of the present invention.

1: Handle 10: Barrel 11: Cut hole 12: Rope storage port 13: Rope
20: Cylinder 21: Spiral protrusion 22: Venturi part 30: Sealing member
40: Piston 41: Piston rod 42: Elastic spring 43: Stopper
50: Loading lever 60: Trigger assembly 61: Seesaw lock 62: Pin
63: trigger 64: spring 70: life tube expansion means 71: water inlet hole
72: Cap 73: Valve 74: CO₂ compressed gas cartridge 75: Water detection sensor
80: Life-saving tube receiving part 90: Propulsion part 91: Air chamber 92: Guide tube
93: wing 94: air ball 100: main body 200: life tube 300: projectile

Claims (3)

A life-saving lifesaving device using pneumatic pressure, consisting of a main body of a launch device in the form of a pistol with a handle and a rope storage port, and a projectile equipped with a life-saving tube that is detachably coupled to the outlet side of the main body and is launched while being separated from the main body by air compression force. In the tube launcher,
The main body of the launch device includes a barrel with a predetermined length, a cylinder installed inside the barrel extending from the middle position to the end in the longitudinal direction and filled with air, and a sealing member that slides inside the cylinder. A piston, a piston rod that is integrally connected to the piston and enters and exits the inside of the cylinder, an elastic spring inside the piston rod, one side of which is fixed to the main body and the other side of the piston to elastically support the piston, and the barrel of the gun. It includes a loading lever installed through the incision hole to compress and load the piston rod, and a trigger assembly installed inside the handle,
The trigger assembly consists of a seesaw-type latch that contacts a stopper at the tip of the piston rod to maintain or release the compressed state of the piston rod, and a trigger that seesaw-rotates the latch around a pin,
The projectile is in the form of a streamlined rocket, is equipped with a plurality of water inlet holes, is accommodated in a folded state inside a cap that is easily opened by pressure, and is connected to a life-saving tube with a rope in the rope storage port, and is connected to the life-saving tube through the life-saving tube and the valve. It consists of a life-saving tube accommodating part with a built-in life-saving tube expansion means consisting of a connected CO₂ compressed gas cartridge and a water detection sensor, and a propulsion part with a guide tube and an air ball extrapolated to an air chamber and cylinder separately connected to the life-saving tube accommodating part. A life-saving tube launching device for lifesaving using pneumatic pressure, characterized in that it is combined. The life-saving life tube launching device using pneumatic pressure according to claim 1, wherein a spiral protrusion is formed on the inner peripheral surface of the cylinder to increase the flow rate by forming a vortex of air. The lifesaving tube launcher using pneumatic pressure according to claim 1, wherein the cross-sectional area of the outlet side of the cylinder is temporarily narrowed to form a venturi portion that increases the flow rate by reducing the pressure.