A medium-long range projection type point burner for forest

Abstract

This utility model discloses a medium-to-long-range projectile igniter for forest use, belonging to the field of field ignition technology. It includes a launch tube assembly, a pneumatic propulsion system, an ethylene glycol injection system, a combustion ball feeding mechanism, a trigger assembly, and an operating handle. The launch tube assembly is equipped with a sliding sleeve, which is movably mounted on the operating handle. The pneumatic propulsion system is detachably and fixedly connected to the operating handle, and is connected to the launch tube assembly via a high-pressure gas pipeline. The ethylene glycol injection system is detachably and fixedly connected to the launch tube assembly, with its injection port corresponding to the inner cavity of the launch tube assembly. The combustion ball feeding mechanism has a ball-dropping hole at its bottom. The trigger assembly is linked to the control valve of the pneumatic propulsion system. This utility model is applicable to various scenarios such as forest fire prevention, ecological burning, and power line clearing, and is a remote ignition tool with long-range projection, precise control, safety, reliability, and ease of maintenance.

Description

Technical Field

[0001] This utility model relates to the field of field ignition and fire-fighting ignition technology, specifically a medium- and long-range projection igniter for forest use. Background Technology

[0002] Current methods of field ignition mostly rely on manual approach to the fire source to drip oil or ignite it with an open flame. This presents problems such as high safety risks for operators, low operational efficiency, and significant terrain limitations. Some remote ignition devices use spring-powered energy storage or gunpowder propulsion, achieving a certain distance projection, but suffer from drawbacks such as unadjustable range, unstable initial velocity, and complex maintenance. Electronic ignition systems are susceptible to electromagnetic interference and low temperatures, resulting in insufficient reliability in harsh field environments.

[0003] In recent years, the chemical delayed ignition technology of potassium permanganate and ethylene glycol has been widely used due to its advantages such as no need for electrical control and reliable self-ignition. However, the supporting launching devices generally suffer from problems such as bulky structure, limited range, inconvenient loading, and poor safety, making it difficult to meet the requirements of modern ecological management for "remote, precise, safe, and efficient" ignition.

[0004] Therefore, there is an urgent need for a long-range ignition and launching device that is simple in structure, long in range, safe in operation, and easy to carry and maintain. Utility Model Content

[0005] The purpose of this invention is to provide a medium-to-long-range projectile igniter for forest use, which uses high-pressure gas as propulsion and combines a mechanical liquid injection system with a chemical self-ignition mechanism to achieve automatic loading, quantitative liquid injection and controllable launch of the combustion ball, and has the effects of long-range projection, precise control, safety and reliability and easy maintenance.

[0006] The above-mentioned utility model objective is achieved through the following technical solution:

[0007] A medium-to-long-range projectile incendiary device for forest use includes a launch tube assembly, a pneumatic propulsion system, an ethylene glycol injection system, an incendiary ball feeding mechanism, a trigger assembly, and an operating handle.

[0008] The transmitter tube assembly is provided with a sliding sleeve, and is movably mounted on the operating handle via the sliding sleeve. A return spring is provided at the connection between the sliding sleeve and the transmitter tube assembly.

[0009] The pneumatic propulsion system is detachably and fixedly connected to the operating handle, and the pneumatic propulsion system is connected to the launch tube assembly through a high-pressure gas pipeline;

[0010] The ethylene glycol injection system is detachably and fixedly connected to the launch tube assembly, and the injection port of the ethylene glycol injection system corresponds to the inner cavity of the incendiary ball feeding mechanism.

[0011] The bottom of the incendiary ball feeding mechanism is provided with a ball drop hole, which corresponds to the ball inlet of the launching tube assembly;

[0012] The triggering component is linked to the control valve of the pneumatic propulsion system.

[0013] The above technical solution realizes the linkage operation of quantitative injection of ethylene glycol, automatic filling of combustion balls and controllable launch of high-pressure gas. The structure is simple and reliable, and no electronic control system is required. It effectively solves the problems of complex operation, poor safety and reliance on manual approach to the fire source in traditional ignition methods.

[0014] As a further technical solution of this utility model: the pneumatic propulsion system includes a high-pressure gas cylinder, a pressure regulating valve, and a pneumatic check valve connected in series through a gas path; wherein the pneumatic check valve is the control valve of the pneumatic propulsion system.

[0015] The above technical solution has constructed a stable, reliable, and precisely controllable pneumatic launch power source. The working pressure can be steplessly adjusted via a pressure regulating valve, thereby precisely controlling the initial velocity and range of the combustion ball, solving the problems of fixed range and unstable initial velocity leading to large dispersion of impact points in traditional ignition devices.

[0016] As a further technical solution of this utility model: the high-pressure gas cylinder is provided with a detachable interface.

[0017] The above technical solution enables rapid replacement of high-pressure gas cylinders, facilitating timely replenishment of power sources during field operations or switching between gas cylinders of different capacities according to task requirements, thereby improving the equipment's continuous operation capability and adaptability.

[0018] As a further technical solution of this utility model: the triggering component includes a trigger, which is linked with the pneumatic check valve to control the opening and closing of the pneumatic check valve.

[0019] The above technical solution achieves a direct, reliable, and rapid-response launch control method. The trigger directly controls the opening and closing of the pneumatic check valve through a mechanical linkage mechanism, ensuring the immediacy and consistency of high-pressure gas release and solving the problems of complex and prone to failure electrical control systems, or slow manual valve operation and poor sealing.

[0020] As a further technical solution of this utility model: the ethylene glycol injection system includes a storage bottle, a mechanical injection pump, an injection needle, a one-way valve, and a pressure plate handle;

[0021] The outlet of the storage bottle is connected to the inlet of the mechanical injection pump, the outlet of the mechanical injection pump is connected to the inlet of the injection needle through a pipeline equipped with the one-way valve, and the pressure plate handle is connected to the mechanical injection pump in a transmission connection.

[0022] The above technical solution provides a purely mechanical quantitative liquid injection mechanism that can automatically and accurately inject 0.5 ml of ethylene glycol into the combustion ball before launch by pressing the pressure plate handle, ensuring reliable triggering of the chemical delayed ignition reaction, and requiring no electricity and resisting electromagnetic interference.

[0023] As a further technical solution of this utility model: the incendiary ball feeding mechanism is a vertical magazine structure, and multiple incendiary balls are placed inside the incendiary ball feeding mechanism, and an injection window is opened on its bottom side wall.

[0024] Through the above technical solutions, the vertical magazine and multi-burning ball design can be combined with gravity feeding to achieve continuous supply and rapid loading, improving operational efficiency; the liquid injection window on the bottom side wall can accurately match the trajectory of the liquid injection needle, ensuring that liquid is injected only into the burning balls to be launched in the feeding mechanism, avoiding interference with other balls, and ensuring accurate sealing of the liquid injection.

[0025] As a further technical solution of this utility model: the combustion ball is a hollow sphere made of polystyrene, the inner cavity of the sphere is encapsulated with potassium permanganate powder, and a sealing layer is provided on the outer surface of the sphere.

[0026] Through the above technical solution, the combustion ball can spontaneously combust within 20 to 60 seconds after being injected with ethylene glycol, and continue to burn for no less than 2 minutes, providing a reliable ignition source for remote ignition; the external sealing and waterproofing ensure the stability and reliability of the combustion ball in storage and field environments.

[0027] As a further technical solution of this utility model: the pneumatic propulsion system is connected to the operating handle through a quick-release interface.

[0028] The above technical solutions enable rapid disassembly and replacement of the pneumatic propulsion module, facilitating on-site maintenance, functional expansion, or adaptation to launch tubes with different range requirements, thereby improving the maintainability and expandability of the equipment.

[0029] As a further technical solution of this utility model: the ethylene glycol injection system is connected to the launch tube assembly through a quick-release interface.

[0030] The above technical solution enables rapid disassembly and replacement of the liquid injection module, facilitating refueling, cleaning, maintenance, or module upgrades, and further enhancing the modularity and field applicability of the equipment.

[0031] As a further technical solution of this utility model, a pressure relief valve is also provided. The inlet end of the pressure relief valve is connected to the high-pressure air path between the pressure regulating valve and the pneumatic check valve in the pneumatic propulsion system, and the outlet end of the pressure relief valve is open to the atmosphere, which is used to automatically relieve pressure when the system is over-pressured.

[0032] The above technical solution provides automatic overpressure protection for pneumatic systems, effectively preventing equipment damage or safety accidents caused by abnormal pressure increases, and significantly improving operational safety and system reliability.

[0033] In summary, this utility model has at least one of the following beneficial technical effects:

[0034] 1. This utility model discloses a medium-to-long-range projectile igniter for forest use. By setting up a sliding sleeve and a mechanical linkage structure for each component (the reciprocating motion of the launch tube realizes automatic feeding, the pressure plate handle drives the injection pump to inject liquid quantitatively, and the trigger triggers the pneumatic valve to control the launch), it realizes the integrated linkage operation of precise fuel injection, automatic loading of combustion balls and controllable projection. The structure is simple and reliable, and solves the safety risks and low efficiency problems caused by the need for manual approach to the fire source in traditional ignition methods.

[0035] 2. This utility model discloses a medium-to-long-range projectile igniter for forest use. By adopting a quick-release connection structure between the replaceable high-pressure gas cylinder, pressure regulating valve, and key modules (pneumatic system, liquid injection system) and the launch tube, it realizes stepless adjustment of propulsion power and range, rapid on-site replacement of core components, and functional expansion, which significantly improves the adaptability of the equipment to different operating scenarios and the convenience of field maintenance.

[0036] 3. This utility model discloses a medium-to-long-range projection igniter for forest use. By applying the chemical delay self-ignition mechanism of potassium permanganate and ethylene glycol, integrating passive safety structures such as pressure relief valves, and using lightweight and high-strength materials, it achieves extremely high environmental reliability (anti-electromagnetic interference and low-temperature resistance) without the need for electronic components during the ignition process, while ensuring inherent safety during operation and the portability of the entire device for individual soldiers. Attached Figure Description

[0037] Figure 1 This is a schematic diagram of the overall structure of a medium-to-long-range projection igniter for forest use according to this utility model.

[0038] Figure 2 for Figure 1 Cross-sectional view of the launch tube assembly and ammunition feeding mechanism.

[0039] Figure 3 for Figure 1 Top view cross-section of the aerodynamic propulsion system.

[0040] Figure 4 for Figure 1 A schematic diagram of the structure of a medium-speed aerodynamic propulsion system.

[0041] Figure 5 for Figure 1 Diagram showing the linkage structure between the ethylene glycol injection system and the injection pump.

[0042] Figure 6 for Figure 1 A schematic diagram of the movement trajectory of the middle firing tube assembly and the injection needle.

[0043] Reference numerals: 1. Launch tube assembly; 2. Pneumatic propulsion system; 21. High-pressure gas cylinder; 22. Pressure regulating valve; 23. Pneumatic check valve; 3. Ethylene glycol injection system; 31. Storage bottle; 32. Mechanical injection pump; 33. Injection needle; 34. Check valve; 35. Pressure plate handle; 4. Incendiary ball feeding mechanism; 41. Incendiary ball; 42. Ball drop hole; 43. Injection window; 5. Pressure relief valve; 6. Trigger assembly; 61. Trigger; 7. Operating handle; 8. Return spring. Detailed Implementation

[0044] The technical solutions in the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of this application without creative effort are within the scope of protection of this application.

[0045] In the description of this application, it should be noted that the terms "upper," "lower," "inner," "outer," "top / bottom," etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0046] In the description of this application, it should be noted that, unless otherwise expressly specified and limited, the terms "installed," "equipped with," "sleeved / connected," "connected," etc., should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0047] Example 1:

[0048] Reference Figure 1This utility model discloses a medium-to-long-range projectile igniter for forest use, comprising a launch tube assembly 1, a pneumatic propulsion system 2, an ethylene glycol injection system 3, a combustion ball feeding mechanism 4, an operating handle 7, and a trigger assembly 6. The launch tube assembly 1 is provided with a sliding sleeve, which is reciprocally mounted on the operating handle 7. A return spring 8 is assembled between the sliding sleeve and the launch tube assembly 1. The return spring 8 is made of 65Mn spring steel with a stiffness coefficient of 5N / mm and a maximum compression stroke of 30mm. One end of the return spring 8 is fixed to the inner annular boss of the sliding sleeve by welding, and the other end is fixed to the corresponding boss on the outer wall of the launch tube assembly 1 by a snap-fit, providing a structural basis for the automatic loading of the combustion ball 41.

[0049] The entire machine is made of high-strength aluminum alloy and engineering composite materials. While ensuring structural strength, the total weight is controlled to less than 4kg, which realizes the lightweight design of the equipment. It is very suitable for individual soldiers to carry and for long-term field operations, and also has excellent corrosion resistance.

[0050] Reference Figure 3 and Figure 4 The pneumatic propulsion system 2 is connected to the operating handle 7 via a quick-release interface. This quick-release interface is specifically a snap-on or threaded quick-release structure, allowing the pneumatic propulsion system 2 to be quickly separated from or connected to the operating handle 7, enabling manual assembly and disassembly, greatly facilitating system maintenance and transportation. The pneumatic propulsion system 2 includes a high-pressure gas cylinder 21, a pressure regulating valve 22, and a pneumatic check valve 23 connected in series via a gas path. The trigger assembly 6 includes a trigger 61, which is linked to the pneumatic check valve 23. Pulling the trigger 61 actuates the valve core of the pneumatic check valve 23, opening the gas path to release high-pressure gas. Releasing the trigger 61 resets the pneumatic check valve 23, closing the gas path. Simultaneously, the high-pressure gas cylinder 21 is equipped with a detachable interface, facilitating the replacement of cylinders with different capacities, improving the equipment's continuous operation capability and adaptability.

[0051] Reference Figure 1 The system integrates a safety protection mechanism: a pressure relief valve 5 is connected in parallel to the high-pressure air line between the pressure regulating valve 22 and the pneumatic check valve 23. Its inlet is connected to the main air line, and its outlet is open to the atmosphere. When the system pressure rises abnormally, the pressure relief valve 5 automatically opens to release pressure, ensuring operational safety.

[0052] Reference Figure 1 and Figure 5The ethylene glycol injection system 3 connects to the launch tube assembly 1 via a snap-on quick-release interface, enabling modular and independent assembly and disassembly. This quick-release interface includes a positioning pin, a locking buckle, and an O-ring seal; assembly and disassembly can be completed by manually pressing the buckle, ensuring a tight seal after connection. The ethylene glycol injection system 3 includes a storage bottle 31, a mechanical injection pump 32, an injection needle 33, a one-way valve 34, and a pressure plate handle 35. The outlet of the storage bottle 31 is connected to the inlet of the mechanical injection pump 32, and the outlet of the mechanical injection pump 32 is connected to the inlet of the injection needle 33 via a pipeline equipped with the one-way valve 34. The injection port of the injection needle 33 corresponds to the inner cavity of the launch tube assembly 1.

[0053] Reference Figure 6 When the operator operates the pressure plate handle 35, the pressure plate handle 35 can rotate back and forth, and through the transmission relationship, it drives the injection needle 33 to make a circular motion. In the initial stage of injection, the injection needle 33 is driven to penetrate the sealing structure outside the combustion ball 41. After the mechanical injection pump 32 completes the quantitative injection of ethylene glycol, the injection needle 33 is withdrawn from the combustion ball 41 as the pressure plate handle 35 rotates in the opposite direction, thus completing the continuous action of insertion and withdrawal.

[0054] Reference Figure 2 The incendiary ball feeding mechanism 4 is a vertical magazine structure containing multiple incendiary balls 41. Each incendiary ball 41 is a hollow sphere made of polystyrene, encapsulated with potassium permanganate powder and sealed for waterproofing. A ball drop hole 42 is located at the bottom of the incendiary ball feeding mechanism 4, corresponding to the inlet of the launch tube assembly 1. Furthermore, a liquid injection window 43 is located on the bottom side wall of the incendiary ball feeding mechanism 4, directly opposite the trajectory of the liquid injection needle 33. When the incendiary ball 41 is in the bottom, ready-to-fire position of the feeding mechanism, its spherical portion is exposed through this liquid injection window 43, allowing the liquid injection needle 33 to penetrate and complete the liquid injection operation.

[0055] The operation process of this utility model is as follows: First, press down the pressure plate handle 35 of the ethylene glycol injection system 3 to drive the mechanical injection pump 32, causing the injection needle 33 to pass through the injection window 43 on the bottom side wall of the incendiary ball feeding mechanism 4, piercing the outer shell of the incendiary ball 41 to be launched and injecting 0.5 ml of ethylene glycol solution. After injection, the injection needle 33 automatically retracts. Next, pull forward the launch tube assembly 1, causing it to move backward through the sliding sleeve mechanism, allowing the incendiary ball 41, which has been injected, to burn under gravity. The incendiary ball 41 falls into the inlet of the launch tube assembly 1 through the ball drop hole 42 at the bottom of the incendiary ball feeding mechanism 4, completing the automatic loading. Then, the launch tube assembly 1 is released, returns to its original position under the action of the return spring 8, and completes the positioning of the incendiary ball 41. Finally, the trigger 61 of the trigger assembly 6 is pulled to open the pneumatic one-way valve 23, allowing the gas in the high-pressure cylinder 21 to be regulated by the pressure regulating valve 22 and then push the incendiary ball 41 in the launch tube assembly 1 to be launched at a preset initial velocity. After landing, the incendiary ball 41 undergoes a 20-60 second chemical delay before spontaneously combusting, forming a continuous ignition source. The entire process achieves a sequential operation of liquid injection, loading, and launch through mechanical linkage, requiring no external energy intervention.

[0056] The principle of this invention is as follows: The device achieves its function based on high-pressure gas dynamics and redox chemistry principles: the pneumatic propulsion system 2 generates directional kinetic energy within a sealed tube using adjustable high-pressure gas, propelling the combustion ball 41 to its initial velocity; the mechanical injection system converts the mechanical energy of the pressure plate handle 35 into the hydraulic energy of the mechanical injection pump 32 via lever transmission, precisely controlling the amount of ethylene glycol delivered; a violent redox reaction occurs when potassium permanganate and ethylene glycol come into contact within the combustion ball 41, and spontaneous combustion occurs after the accumulated heat reaches the ignition point; the ammunition feeding mechanism utilizes gravitational potential energy in conjunction with the tube's movement to achieve automatic ammunition feeding; the safety system releases overpressure through the elastic mechanical response of the pressure relief valve 5. Each subsystem maintains functional independence while coordinating with others through a modular quick-release structure. The overall design employs lightweight materials and a sealed design to ensure environmental adaptability, ultimately achieving a safe, reliable, and precisely controllable remote ignition function.

[0057] The embodiments described herein are preferred embodiments of this utility model and are not intended to limit the scope of protection of this utility model. Therefore, all equivalent changes made to the structure, shape, and principle of this utility model should be included within the scope of protection of this utility model.

Claims

1. A medium-to-long-range projection-type igniter for forest use, characterized in that, It includes a launch tube assembly (1), a pneumatic propulsion system (2), an ethylene glycol injection system (3), a combustion ball feeding mechanism (4), a trigger assembly (6), and an operating handle (7). The transmitter tube assembly (1) is provided with a sliding sleeve, and is movably mounted on the operating handle (7) through the sliding sleeve. A return spring (8) is provided at the connection between the sliding sleeve and the transmitter tube assembly (1). The pneumatic propulsion system (2) is detachably and fixedly connected to the operating handle (7), and the pneumatic propulsion system (2) is connected to the launch tube assembly (1) through a high-pressure gas pipeline; The ethylene glycol injection system (3) is detachably and fixedly connected to the launch tube assembly (1), and the injection port of the ethylene glycol injection system (3) corresponds to the inner cavity of the incendiary ball feeding mechanism (4); The combustion ball feeding mechanism (4) has a ball drop hole (42) at the bottom, which corresponds to the ball inlet of the launching tube assembly (1). The triggering component (6) is linked to the control valve of the pneumatic propulsion system (2).

2. A medium-to-long-range projection-type igniter for forest use according to claim 1, characterized in that, The pneumatic propulsion system (2) includes a high-pressure gas cylinder (21), a pressure regulating valve (22), and a pneumatic check valve (23) connected in series via a gas path; wherein the pneumatic check valve (23) is the control valve of the pneumatic propulsion system (2).

3. A medium-to-long-range projection-type igniter for forest use according to claim 2, characterized in that, The high-pressure gas cylinder (21) is equipped with a detachable interface.

4. A medium-to-long-range projection-type igniter for forest use according to claim 2, characterized in that, The triggering component (6) includes a trigger (61), which is linked to the pneumatic check valve (23) to control the opening and closing of the pneumatic check valve (23).

5. A medium-to-long-range projection-type igniter for forest use according to claim 1, characterized in that, The ethylene glycol injection system (3) includes a storage bottle (31), a mechanical injection pump (32), an injection needle (33), a one-way valve (34), and a pressure plate handle (35); The outlet of the storage bottle (31) is connected to the inlet of the mechanical injection pump (32). The outlet of the mechanical injection pump (32) is connected to the inlet of the injection needle (33) through a pipeline equipped with the one-way valve (34). The pressure plate handle (35) is connected to the mechanical injection pump (32) in a transmission connection.

6. A medium-to-long-range projection-type igniter for forest use according to claim 1, characterized in that, The incendiary ball feeding mechanism (4) is a vertical magazine structure. Multiple incendiary balls (41) are placed inside the incendiary ball feeding mechanism (4), and an injection window (43) is provided on its bottom side wall.

7. A medium-to-long-range projection-type igniter for forest use according to claim 6, characterized in that, The combustion ball (41) is a hollow sphere made of polystyrene, with potassium permanganate powder encapsulated in its inner cavity and a sealing layer provided on its outer surface.

8. A medium-to-long-range projection-type igniter for forest use according to claim 1, characterized in that, The pneumatic propulsion system (2) is connected to the operating handle (7) via a quick-release interface.

9. A medium-to-long-range projection-type igniter for forest use according to claim 1, characterized in that, The ethylene glycol injection system (3) is connected to the launch tube assembly (1) via a quick-release interface.

10. A medium-to-long-range projection-type igniter for forest use according to claim 1, characterized in that, A pressure relief valve (5) is also provided. The inlet end of the pressure relief valve (5) is connected to the high-pressure air path between the pressure regulating valve (22) and the pneumatic check valve (23) in the pneumatic propulsion system (2). The outlet end of the pressure relief valve (5) is open to the atmosphere and is used to automatically relieve pressure when the system is over-pressured.

Images