A high-pressure carbon dioxide shell launching device for preventing and extinguishing fires in coal mines

Abstract

The present invention discloses a high-pressure carbon dioxide shell launching device for preventing and extinguishing fires in coal mines, specifically relating to the field of fire protection technology. It includes a trolley, and a high-pressure carbon dioxide gas cylinder is movably sleeved in a fixing frame welded on the top of the trolley. After the pull rope is released in the present invention, the firing pin will hit inside the carbon dioxide driving gas cylinder under the elastic force of the return spring to open the carbon dioxide driving gas cylinder. The carbon dioxide driving gas cylinder will strongly push the fire extinguishing bomb. At the same time, the high-pressure carbon dioxide gas cylinder is opened, and high-pressure carbon dioxide will enter the launching tube through the air duct to push the fire extinguishing bomb again. Under the strong push, the fire extinguishing bomb can fall on the fire area in cooperation with the guidance of the launching tube, so that the fire extinguishing agent in the fire extinguishing bomb can extinguish the fire in a certain distance from the fire area. Since the carbon dioxide driving gas cylinder and the high-pressure carbon dioxide gas cylinder are non-launching agents, they can be purchased by units or individuals, and are suitable for extensive promotion.

Description

Technical Field

[0001] The present invention relates to the field of fire protection technology, and more specifically, the present utility model relates to a high-pressure carbon dioxide shell launching device for preventing and extinguishing fires in coal mines. Background Art

[0002] Mine fires are one of the main disasters in underground coal mines. Therefore, how to prevent mine fires is of great significance for the safe production of coal mines. At present, methods for preventing and controlling mine fires include grouting, injecting inert gas, spraying inhibitor, etc. For example, when a fire breaks out at a certain location underground and personnel cannot approach, a quick and efficient method must be adopted to quickly control the limited space underground and prevent the spread of smoke and fire from hurting people. Launching fire extinguishing shells from a distance is a quick and effective method for preventing and controlling mine fires, and developing related devices has important practical value for coal mine site safety.

[0003] Fire extinguishing bombs have the characteristics of being easy to use and having great power. According to types, they can be divided into sand and stone fire extinguishing bombs, carbon dioxide shells, and dry powder fire extinguishing bombs. According to models, they can be divided into large, medium, and small sizes, and are suitable for extinguishing fires in targets such as urban buildings, roads, chemical storage and transportation equipment, chemical factory buildings, forests, etc. However, the existing launch of fire extinguishing bombs is often achieved by using launch agents, and there are the following problems:

[0004] Most of the overall fire extinguishing shell launching devices are relatively heavy, and it is laborious to move them. Therefore, there is a lack of a device that can launch fire extinguishing bombs without using launch agents and is also convenient for movement.

[0005] The above information disclosed in the background art section is only used to enhance the understanding of the background of the present disclosure, and therefore it may include information that does not constitute the prior art known to those of ordinary skill in the art. Summary of the Invention

[0006] In order to overcome the above-mentioned defects of the prior art, an embodiment of the present invention provides a high-pressure carbon dioxide shell launching device for preventing and extinguishing fires in coal mines. The technical problem to be solved by the present invention is: through the settings of a high-pressure carbon dioxide gas cylinder, a carbon dioxide driving gas cylinder, a firing pin, a trolley, and self-locking universal wheels, the problems of being unable to launch fire extinguishing bombs without using launch agents and being unable to facilitate the movement of the device are solved.

[0007] To achieve the above object, the present invention provides the following technical solution: A high-pressure carbon dioxide shell launching device for preventing and extinguishing fires in coal mines, including a trolley, a high-pressure carbon dioxide gas cylinder is movably sleeved in a fixed frame welded on the top of the trolley, a guide pipe is fixedly sleeved in the output end of the high-pressure carbon dioxide gas cylinder, one side of the top of the trolley is rotatably connected with a fixed sleeve rod through a hinge seat, a sliding rod is slidably sleeved on the inner top wall of the fixed sleeve rod, the top end of the sliding rod is rotatably connected with a launching tube through a plug rod, a rubber block is fixedly sleeved on the bottom inner wall of the launching tube, a fire extinguishing bomb is in contact with the top of the rubber block, the fire extinguishing bomb is movably sleeved on the inner wall of the launching tube, a fire extinguishing agent is filled in the fire extinguishing bomb, a fixing groove is opened at the bottom of the fire extinguishing bomb, a plurality of uniformly distributed carbon dioxide driving gas cylinders are fixedly sleeved in the fixing groove, a return spring is welded on the bottom inner wall of the launching tube, a limiting pressure frame is welded at the top end of the return spring, a plurality of uniformly distributed firing pins are welded on the top of the limiting pressure frame, the top end of the firing pin is in contact with the bottom end of the carbon dioxide driving gas cylinder, a pull rope is wound around the bottom of the limiting pressure frame, one end of the pull rope penetrates through the launching tube, and the bottom end of the guide pipe penetrates through the rubber block and is fixedly sleeved on the bottom inner wall of the launching tube.

[0008] In a preferred embodiment, self-locking universal wheels are fixedly installed at the four corners of the bottom of the trolley through bolts.

[0009] In a preferred embodiment, butterfly bolts are threadedly sleeved in the circular holes opened on both sides of the top end of the fixed sleeve rod.

[0010] In a preferred embodiment, the sliding rod is movably clamped between the two butterfly bolts.

[0011] In a preferred embodiment, the bottom of the launching tube is in contact with the top of the trolley, and the diameter of the fire extinguishing bomb is equal to the inner diameter of the launching tube.

[0012] In a preferred embodiment, the rubber block is in a circular ring shape, and the limiting pressure frame is slidably sleeved on the inner wall of the rubber block.

[0013] In a preferred embodiment, the return spring is located inside the rubber block, and one end of the pull rope is located inside the return spring.

[0014] In a preferred embodiment, the trolley, the fixed sleeve rod, the sliding rod and the launching tube are distributed in a triangular shape.

[0015] The technical effects and advantages of the present invention:

[0016] 1. After the drawstring of the present invention is released, the firing pin will strike inside the carbon dioxide driving gas cylinder under the elastic force of the return spring to open the carbon dioxide driving gas cylinder. The carbon dioxide driving gas cylinder will strongly push the fire extinguishing bomb. At the same time, the high-pressure carbon dioxide gas cylinder is opened, and the high-pressure carbon dioxide will enter the launching tube through the air duct to push the fire extinguishing bomb again. Under the strong push, the fire extinguishing bomb can fall on the fire area in cooperation with the guidance of the launching tube, so that the fire extinguishing agent in the fire extinguishing bomb can extinguish the fire in a certain distance in the fire area. Since the carbon dioxide driving gas cylinder and the high-pressure carbon dioxide gas cylinder are non-launching agents, they can be purchased by units or individuals and are suitable for large-scale promotion.

[0017] 2. The trolley of the present invention is equipped with self-locking universal wheels, which is convenient for users to push the launching device to move. There is no need for people to carry the device laboriously. It is more labor-saving during the moving process. Adjust the position of the sliding rod in the fixed sleeve rod and fix it with a wing bolt to adjust the elevation angle of the launching tube, which is convenient for users to adjust the position and distance of the shell launching. Pull out the insertion rod between the sliding rod and the launching tube, and the user can directly carry the launching tube on the body for launching, improving the practicability of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a side view of the overall structure of the present invention.

[0019] Figure 2 It is a side sectional view of the overall structure of the present invention.

[0020] Figure 3 For the present invention Figure 2 Enlarged view of structure A.

[0021] Figure 4 For the present invention Figure 2 Enlarged view of structure B.

[0022] Figure 5 It is a bottom view of the carbon dioxide driving gas cylinder of the present invention.

[0023] Reference numerals are: 1, trolley; 11, self-locking universal wheel; 12, high-pressure carbon dioxide gas cylinder; 13, air duct; 14, fixed sleeve rod; 15, sliding rod; 16, wing bolt; 2, launching tube; 21, rubber block; 22, return spring; 23, limit pressure frame; 24, firing pin; 25, drawstring; 3, fire extinguishing bomb; 31, fire extinguishing agent; 32, fixed groove; 33, carbon dioxide driving gas cylinder. DETAILED DESCRIPTION OF THE INVENTION

[0024] Example embodiments will now be described more fully with reference to the accompanying drawings. However, the example embodiments can be implemented in various forms and should not be construed as limited to the examples set forth herein; rather, these example embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the concept of the example embodiments to those skilled in the art. The drawings are merely schematic illustrations of the present disclosure and are not necessarily drawn to scale. The same reference numerals in the drawings denote the same or similar parts, and thus their repeated description will be omitted.

[0025] In addition, the described features, structures, or characteristics may be combined in any suitable manner in one or more example embodiments. In the following description, numerous specific details are provided to give a thorough understanding of the example embodiments of the present disclosure. However, those skilled in the art will recognize that the technical solutions of the present disclosure may be practiced without one or more of the specific details, or other methods, components, steps, etc. may be employed. In other cases, well-known structures, methods, implementations, or operations are not shown or described in detail to avoid obscuring aspects of the present disclosure.

[0026] Please refer to Figures 1-5 As shown, the present invention provides a high-pressure carbon dioxide shell launching device for preventing and extinguishing fires in coal mines, including a trolley 1. A high-pressure carbon dioxide gas cylinder 12 is movably sleeved in a fixing frame welded on the top of the trolley 1. The trolley 1 can support the high-pressure carbon dioxide gas cylinder 12. A guide pipe 13 is fixedly sleeved in the output end of the high-pressure carbon dioxide gas cylinder 12. The high-pressure carbon dioxide gas cylinder 12 can quickly eject high-pressure carbon dioxide gas outward through the guide pipe 13. One side of the top of the trolley 1 is rotatably connected to a fixed sleeve rod 14 through a hinge seat. The fixed sleeve rod 14 can rotate on the trolley 1. A sliding rod 15 is slidably sleeved on the inner wall top of the fixed sleeve rod 14, facilitating the adjustment of the length between the sliding rod 15 and the fixed sleeve rod 14. The top end of the sliding rod 15 is rotatably connected to a launching tube 2 through a plug rod. The sliding rod 15 can support one end of the launching tube 2, forming an elevation angle for the launching tube 2. A rubber block 21 is fixedly sleeved on the inner wall bottom of the launching tube 2. The top of the rubber block 21 contacts a fire extinguishing bomb 3. The rubber block 21 can softly protect the bottom of the fire extinguishing bomb 3, preventing the bottom of the fire extinguishing bomb 3 from being damaged due to gravity directly hitting the bottom of the launching tube 2. The fire extinguishing bomb 3 is movably sleeved on the inner wall of the launching tube 2, facilitating the guiding of the fire extinguishing bomb 3 by the launching tube 2. The fire extinguishing bomb 3 is filled with a fire extinguishing agent 31. The fire extinguishing agent 31 can extinguish fires in the fire area. When the fire extinguishing bomb 3 drops into the fire area, the shell of the fire extinguishing bomb 3 will break, causing the fire extinguishing agent 31 to be sprayed around for fire extinguishing. A fixing groove 32 is formed at the bottom of the fire extinguishing bomb 3. A plurality of uniformly distributed carbon dioxide driving gas cylinders 33 are fixedly sleeved in the fixing groove 32. The fixing groove 32 can fix the carbon dioxide driving gas cylinders 33. For example Figure 4As shown in the figure, the carbon dioxide driving gas cylinder 33 is still at a certain distance from the exposed opening of the fixed groove 32, which can reduce the probability that an external object accidentally knocks open the carbon dioxide driving gas cylinder 33. After the carbon dioxide driving gas cylinder 33 is hit by a rod-shaped object, it will open and quickly eject carbon dioxide gas, which is the prior art. At the bottom of the inner wall of the launch tube 2, a return spring 22 is welded. The top of the return spring 22 is welded with a limit pressure frame 23. The return spring 22 can support the limit pressure frame 23. A plurality of evenly distributed firing pins 24 are welded on the top of the limit pressure frame 23, which is convenient for supporting the firing pins 24. The top of the firing pin 24 is in contact with the bottom end of the carbon dioxide driving gas cylinder 33, which is convenient for the firing pin 24 to knock open the carbon dioxide driving gas cylinder 33. A pull rope 25 is wound around the bottom of the limit pressure frame 23. The pull rope 25 can pull the firing pin 24 and the limit pressure frame 23 in the opposite direction to avoid accidental firing of the shell. One end of the pull rope 25 passes through the launch tube 2, which is convenient for the user to pull the pull rope 25. The bottom end of the air guide pipe 13 passes through the rubber block 21 and is fixedly sleeved on the bottom of the inner wall of the launch tube 2, which is convenient for the air guide pipe 13 to introduce high-pressure gas into the bottom of the fire extinguishing bomb 3. By increasing or decreasing the number of carbon dioxide driving gas cylinders 33 in the fire extinguishing bomb 3 and adjusting the pressure in the high-pressure carbon dioxide gas cylinder 12, the range of the fire extinguishing bomb 3 can be adjusted, so that the device can be launched at both short and long distances, such as launching at 50m or 100m. The number of carbon dioxide driving gas cylinders 33 is equal to the number of firing pins 26, and both are two or more.

[0027] Self-locking universal wheels 11 are fixedly installed at the four corners of the bottom of the trolley 1 through bolts. The self-locking universal wheels 11 facilitate the movement or fixation of the device. The round holes opened on both sides of the top of the fixed sleeve rod 14 are internally threaded with butterfly bolts 16. The sliding rod 15 is movably clamped between the two butterfly bolts 16, which is convenient for the user to rotate the butterfly bolts 16 to fix the fixed sleeve rod 14 and the sliding rod 15, so as to fix the elevation angle of the launch tube 2. The bottom of the launch tube 2 is in contact with the top of the trolley 1, which is convenient for the trolley 1 to support the launch tube 2. The diameter size of the fire extinguishing bomb 3 is equal to the inner diameter size of the launch tube 2, so that gas cannot leak through the gap, which is convenient for enhancing the thrust of the fire extinguishing bomb 3. The rubber block 21 is in a ring shape. The limit pressure frame 23 is slidably sleeved on the inner wall of the rubber block 21. The return spring 22 is located inside the rubber block 21. One end of the pull rope 25 is located inside the return spring 22 to prevent the pull rope 25 from obstructing the return spring 22. The trolley 1, the fixed sleeve rod 14, the sliding rod 15 and the launch tube 2 are distributed in a triangular shape.

[0028] Working principle of the present invention: When in use, move the trolley 1 to the launching area, adjust the position of the sliding rod 15 within the fixed sleeve rod 14 and fix it with the wing nut 16 to adjust the elevation angle of the launching tube 2. Then slowly place the fire extinguishing bomb 3 into the launching tube 2. After releasing the pull rope 25, the limit pressure frame 23 and the firing pin 24 will hit the carbon dioxide driving gas cylinder 33 under the elastic force of the return spring 22 to open the carbon dioxide driving gas cylinder 33. The carbon dioxide driving gas cylinder 33 will strongly push the fire extinguishing bomb 3. At the same time, open the high-pressure carbon dioxide gas cylinder 12, and the high-pressure carbon dioxide will enter the launching tube 2 through the air guide tube 13 to push the fire extinguishing bomb 3 again, so that the fire extinguishing bomb 3 can fall on the fire area under the strong push and cooperate with the guidance of the launching tube 2. When the fire extinguishing bomb 3 drops onto the fire area, the shell of the fire extinguishing bomb 3 will break, causing the fire extinguishing agent 31 to be sprayed around for fire extinguishing. Adjust the range of the fire extinguishing bomb 3 by increasing or decreasing the number of carbon dioxide driving gas cylinders 33 in the fire extinguishing bomb 3 and adjusting the pressure in the high-pressure carbon dioxide gas cylinder 12. The trolley 1 is equipped with self-locking universal wheels 11 to facilitate the user to move the launching device. By pulling out the insertion rod between the sliding rod 15 and the launching tube 2, the user can directly carry the launching tube 2 on the body for launching, improving the practicability of the device.

[0029] Finally, several points should be noted: First, in the description of the present application, it should be noted that unless otherwise specified and limited, the terms "installation", "connection", and "coupling" should be understood in a broad sense, which can be a mechanical connection or an electrical connection, or the internal connection of two components, and can be directly connected. The terms "up", "down", "left", "right", etc. are only used to represent the relative position relationship. When the absolute position of the object being described changes, the relative position relationship may change;

[0030] Second: In the attached drawings of the disclosed embodiments of the present invention, only the structures related to the disclosed embodiments are involved. For other structures, reference can be made to the general design. Without conflict, the same embodiment and different embodiments of the present invention can be combined with each other;

[0031] Finally: The above are only the preferred embodiments of the present invention and are not used to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A high-pressure carbon dioxide shell launching device for preventing and extinguishing fires in coal mines, comprising a trolley (1), characterized in that: A high-pressure carbon dioxide gas cylinder (12) is movably sleeved in a fixing frame welded on the top of the trolley (1). A gas guide pipe (13) is fixedly sleeved in the output end of the high-pressure carbon dioxide gas cylinder (12). One side of the top of the trolley (1) is rotatably connected with a fixed sleeve rod (14) through a hinge seat. A sliding rod (15) is slidably sleeved on the top inner wall of the fixed sleeve rod (14). The top end of the sliding rod (15) is rotatably connected with a firing tube (2) through a plug rod. A rubber block (21) is fixedly sleeved on the bottom inner wall of the firing tube (2). A fire extinguishing bomb (3) is in contact with the top of the rubber block (21). The fire extinguishing bomb (3) is movably sleeved on the inner wall of the firing tube (2). A fire extinguishing agent (31) is filled in the fire extinguishing bomb (3). A fixing groove (32) is formed at the bottom of the fire extinguishing bomb (3). A plurality of uniformly distributed carbon dioxide driving gas cylinders (33) are fixedly sleeved in the fixing groove (32). A return spring (22) is welded on the bottom inner wall of the firing tube (2). The top end of the return spring (22) is welded with a limiting pressure frame (23). A plurality of uniformly distributed firing pins (24) are welded on the top of the limiting pressure frame (23). The top end of the firing pin (24) is in contact with the bottom end of the carbon dioxide driving gas cylinder (33). A pull rope (25) is wound around the bottom of the limiting pressure frame (23). One end of the pull rope (25) penetrates through the firing tube (2). The bottom end of the gas guide pipe (13) penetrates through the rubber block (21) and is fixedly sleeved on the bottom inner wall of the firing tube (2). The rubber block (21) is in a circular ring shape. The limiting pressure frame (23) is slidably sleeved on the inner wall of the rubber block (21). The range of the fire extinguishing bomb (3) is adjusted by increasing or decreasing the number of carbon dioxide driving gas cylinders (33) in the fire extinguishing bomb (3) and adjusting the pressure in the high-pressure carbon dioxide gas cylinder (12). The return spring (22) is located inside the rubber block (21). One end of the pull rope (25) is located inside the return spring (22).

2. The high-pressure carbon dioxide shell launching device for preventing and extinguishing fires in coal mines according to claim 1, characterized in that: Self-locking universal wheels (11) are fixedly installed at the four corners of the bottom of the trolley (1) through bolts.

3. The high-pressure carbon dioxide shell launching device for preventing and extinguishing fires in coal mines according to claim 1, characterized in that: Butterfly bolts (16) are threadedly sleeved in the circular holes formed on both sides of the top end of the fixed sleeve rod (14).

4. The high-pressure carbon dioxide shell launching device for preventing and extinguishing fires in coal mines according to claim 3, characterized in that: The sliding rod (15) is movably clamped between the two butterfly bolts (16).

5. The high-pressure carbon dioxide shell launching device for preventing and extinguishing fires in coal mines according to claim 1, characterized in that: The bottom of the firing tube (2) is in contact with the top of the trolley (1). The diameter of the fire extinguishing bomb (3) is equal to the inner diameter of the firing tube (2).

6. The high-pressure carbon dioxide shell launching device for preventing and extinguishing fires in coal mines according to claim 1, characterized in that: The trolley (1), the firing tube (2), the fixed sleeve rod (14) and the sliding rod (15) are distributed in a triangular shape.

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