Medium and long distance projection type ignition device for forest

Abstract

The invention discloses a medium and long distance projection type ignition device for forests, and belongs to the technical field of field ignition, the medium and long distance projection type ignition device for forests comprises a launching tube assembly, a pneumatic propelling system, an ethylene glycol liquid injection system, a combustion ball ammunition supply mechanism, a trigger assembly and an operating handle, a sliding sleeve is arranged on the launching tube assembly, and the launching tube assembly is movably installed on the operating handle through the sliding sleeve; the pneumatic propelling system is detachably and fixedly connected with the operating handle, and the pneumatic propelling system is communicated with the launching tube assembly through a high-pressure gas pipeline; the ethylene glycol liquid injection system is detachably and fixedly connected with the transmitting tube assembly, and an injection port of the ethylene glycol liquid injection system corresponds to an inner cavity of the transmitting tube assembly; a ball falling hole is formed in the bottom of the combustion ball supply mechanism; and the trigger assembly is linked with a control valve of the pneumatic propulsion system. The remote ignition device is suitable for various scenes such as forest fire prevention, ecological burning, power transmission line obstacle removal and the like, and is a remote ignition tool which has the advantages of remote projection, accurate control, safety, reliability and convenience in maintenance.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of field ignition and fire ignition technology, in particular to a medium and long range projection type point burner for forest. BACKGROUND

[0002] The existing field ignition method relies on manual approach to the fire source for oil dripping or open fire ignition, which has high safety risk for the operator, low operation efficiency and is greatly limited by the terrain. Some long-range ignition equipment uses spring energy storage or gunpowder propulsion, which can achieve a certain distance projection, but has defects such as adjustable range, unstable initial speed, and complex maintenance. The electronic ignition system is easily affected by electromagnetic interference and low temperature, and has insufficient reliability in harsh outdoor environments.

[0003] In recent years, the chemical delay ignition technology of potassium permanganate and ethylene glycol has been widely used due to its advantages of no need for electric control and reliable spontaneous combustion. However, the supporting launching device generally has problems such as heavy structure, limited range, inconvenient loading, and poor safety, which is difficult to meet the demand of modern ecological management for "long-range, accurate, safe and efficient" ignition.

[0004] Therefore, there is an urgent need for a long-range ignition launching device with simple structure, long range, safe operation, portability and easy maintenance. SUMMARY

[0005] The purpose of the present application is to provide a medium and long range projection type point burner for forest, which uses high-pressure gas as the propulsion power, combines mechanical liquid injection system with chemical spontaneous combustion mechanism, realizes automatic loading, quantitative liquid injection and controllable launching of the combustion ball, and has the effects of long-range projection, accurate control, safety and reliability, and easy maintenance.

[0006] The above invention purpose of the present application is realized by the following technical scheme:

[0007] A medium and long range projection type point burner for forest, comprising a launching tube assembly, a pneumatic propulsion system, an ethylene glycol liquid injection system, a combustion ball feeding mechanism, a trigger assembly and an operating handle,

[0008] A sliding sleeve is arranged on the launching tube assembly and movably mounted on the operating handle through the sliding sleeve, and a return spring is arranged at the connection between the sliding sleeve and the launching tube assembly;

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

[0010] The ethylene glycol liquid injection system is detachably fixedly connected with the launching tube assembly, and the injection port of the ethylene glycol liquid injection system corresponds to the inner cavity of the combustion ball feeding mechanism;

[0011] The combustion ball feeding mechanism is provided with a ball dropping hole at the bottom, and the ball dropping hole corresponds to the bullet inlet of the launching tube assembly;

[0012] The pressure relief valve is arranged on the high-pressure gas path of the pneumatic propulsion system, and the outlet end of the pressure relief valve is open to the atmosphere.

[0013] The trigger assembly is linked with the control valve of the pneumatic propulsion system.

[0014] Through the above technical scheme, an integrated point burner with overpressure protection function is constructed. The sequential operation from ethylene glycol quantitative injection, automatic combustion ball loading to controllable high-pressure gas launching is realized through the mechanical linkage between the subsystems; the pure mechanical structure is simple and reliable, and does not need electronic control; the safety relief mechanism formed by the pressure relief valve effectively overcomes the disadvantages of complex operation, poor safety and dependence on personnel access to the fire source of the traditional ignition mode.

[0015] As a further technical scheme of the present application: 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.

[0016] Through the above technical scheme, a stable and reliable pneumatic launching power source which can be accurately controlled is constructed. The stepless adjustment of working pressure can be realized through the pressure regulating valve, so as to accurately control the launching initial velocity and range of the combustion ball, and the problem of large drop point dispersion caused by fixed range and unstable initial velocity of the traditional ignition equipment is solved.

[0017] As a further technical scheme of the present application: the high-pressure gas cylinder is provided with a detachable interface.

[0018] Through the above technical scheme, the high-pressure gas cylinder can be quickly replaced, which is convenient for timely supplement of power source or switching of gas cylinders with different capacities according to task requirements in field operation, and improves the continuous operation ability and adaptability of the equipment.

[0019] As a further technical scheme of the present application: the trigger assembly includes a trigger, and the trigger is linked with the pneumatic check valve for controlling the opening and closing of the pneumatic check valve.

[0020] Through the above technical scheme, a direct, reliable and rapid response launching control mode is realized. The trigger directly controls the opening and closing of the pneumatic check valve through the mechanical linkage mechanism, ensuring the instantaneity and consistency of high-pressure gas release, and solving the problems of complex electric control system, easy failure or slow operation of manual valve and poor sealing.

[0021] As a further technical scheme of the present application: the ethylene glycol injection system includes a liquid storage bottle, a mechanical injection pump, an injection needle, a check valve and a pressure plate handle.

[0022] The liquid outlet of the liquid storage bottle is communicated with the liquid inlet end of the mechanical liquid injection pump, the liquid outlet end of the mechanical liquid injection pump is communicated with the liquid inlet end of the liquid injection needle through a pipeline provided with the one-way valve, and the pressing plate handle is in transmission connection with the mechanical liquid injection pump.

[0023] Through the above technical scheme, a pure mechanical quantitative liquid injection mechanism is provided, 0.5ml of ethylene glycol can be automatically and accurately injected into the combustion ball before launching by pressing the pressing plate handle, the reliable triggering of the chemical delay ignition reaction is ensured, and no power is needed, and electromagnetic interference is resisted.

[0024] As a further technical scheme of the application: the combustion ball feeding mechanism is a vertical magazine structure, a plurality of combustion balls are placed in the combustion ball feeding mechanism, and a liquid injection window is formed in the bottom side wall thereof.

[0025] Through the above technical scheme, the vertical magazine and the multiple combustion ball design can be combined to realize continuous supply and rapid loading by gravity feeding, thereby improving the operation efficiency; the liquid injection window in the bottom side wall can accurately match the trajectory of the liquid injection needle, ensure that liquid is injected only to the combustion ball to be launched in the feeding mechanism, avoid interference with other balls, and ensure accurate liquid injection and sealing.

[0026] As a further technical scheme of the application: the combustion ball is a hollow sphere made of polystyrene, a potassium permanganate powder is packaged in the inner cavity of the spherical shell, and a sealing layer is arranged on the outer surface of the spherical shell.

[0027] Through the above technical scheme, the combustion ball can self-ignite after being injected with ethylene glycol within 20-60 seconds and continue to burn for not less than 2 minutes, thereby providing a reliable fire source for remote ignition; the external sealing and waterproofing ensure the stability and reliability of the combustion ball in storage and in the field environment.

[0028] As a further technical scheme of the application: the pneumatic propulsion system is connected with the operating handle through a quick release interface.

[0029] Through the above technical scheme, the pneumatic propulsion module can be quickly disassembled, replaced, and maintained on site, functionally expanded, or adapted to different range requirements of the launching tube, thereby improving the maintainability and expandability of the equipment.

[0030] As a further technical scheme of the application: the ethylene glycol liquid injection system is connected with the launching tube assembly through a quick release interface.

[0031] Through the above technical scheme, the liquid injection module can be quickly disassembled, replaced, and maintained on site, functionally expanded, or upgraded, thereby further enhancing the modularity and field applicability of the equipment.

[0032] As a further technical solution of the present application: a pressure relief valve is further arranged, an inlet end of the pressure relief valve is communicated with a high-pressure gas path between a pressure regulating valve and a pneumatic check valve in the pneumatic propulsion system, and an outlet end of the pressure relief valve is open to the atmosphere, for automatically relieving pressure when the system is over-pressured.

[0033] The above technical solution provides overpressure automatic protection for the pneumatic system, effectively prevents equipment damage or safety accidents caused by abnormal pressure rise, and significantly improves the safety of operation and the reliability of the system.

[0034] As a further technical solution of the present application: the point burner adopts high-strength aluminum alloy and engineering composite material.

[0035] The above technical solution controls the total mass to be less than 4 kg under the premise of ensuring the structural strength of the whole machine, realizes the lightweight of the equipment, is very suitable for single soldier carrying and long time field operation, and has excellent corrosion resistance.

[0036] In summary, the present application has at least one of the following beneficial technical effects:

[0037] 1. The present application discloses a medium and long range projection type point burner for forest, which integrates a launching tube assembly, a pneumatic propulsion system, a glycol injection system, a combustion ball feeding mechanism, a pressure relief valve and a trigger assembly in the operating handle in a specific structure and connection relationship, realizes the sequential mechanical linkage of glycol quantitative injection, automatic combustion ball feeding, high-pressure gas controllable projection and overpressure safety protection of the point burner, and constitutes a complete, reliable and safe long-range ignition function system.

[0038] 2. The present application discloses a medium and long range projection type point burner for forest, which adopts a propulsion system composed of a high-pressure gas cylinder, a pressure regulating valve and a pneumatic check valve in series, and cooperates with a detachable gas cylinder interface and a trigger linkage mechanism, realizes accurate adjustable launching pressure, quick replacement of power source and quick response of launching control, and fundamentally ensures that the point burner is controllable in range, continuous in operation and reliable in operation.

[0039] 3. The present application discloses a medium and long range projection type point burner for forest, which sets a quick release interface for key systems and adopts lightweight high-strength materials, realizes quick maintenance of the core modules of the equipment and extreme lightweight (<4 kg) of the overall structure, and comprehensively solves the core pain points of traditional equipment, such as being heavy, inconvenient to carry and difficult to maintain. BRIEF DESCRIPTION OF DRAWINGS

[0040] Figure 1 It is a whole structure schematic view of the present application, a medium and long range projection type point burner for forest.

[0041] Figure 2 It is Figure 1The middle of the launch tube assembly and the feeding mechanism sectional view.

[0042] Figure 3 For Figure 1 The top view of the pneumatic propulsion system.

[0043] Figure 4 For Figure 1 The structural schematic diagram of the pneumatic propulsion system.

[0044] Figure 5 For Figure 1 The linkage structure diagram of the ethylene glycol injection system and the injection pump.

[0045] Figure 6 For Figure 1 The schematic diagram of the motion trajectory of the launch tube assembly and the injection needle.

[0046] The figure mark: 1, the 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, liquid storage bottle; 32, mechanical injection pump; 33, injection needle; 34, check valve; 35, pressure plate handle; 4, combustion ball feeding mechanism; 41, combustion ball; 42, drop ball hole; 43, injection window; 5, pressure relief valve; 6, trigger assembly; 61, trigger; 7, operating handle; 8, return spring. DETAILED DESCRIPTION

[0047] The technical solutions in the embodiments of the present application will be described clearly and completely in the present application with reference to the drawings in the embodiments of the present application; obviously, the described embodiments are only part of the embodiments of the present application, not all the embodiments of the present application, based on the embodiments in the present application, all other embodiments obtained by the person skilled in the art without making creative labor belong to the protection scope of the present application.

[0048] In the description of the present application, it is necessary to explain that the terms "upper", "lower", "inner", "outer", "top / bottom end" and the like indicate the orientation or positional relationship shown in the drawings, only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the indicated device or element must have a particular orientation, be constructed and operated in a particular orientation, therefore, it cannot be understood as a limitation on the present application. In addition, the terms "first", "second" are only for the purpose of description, and cannot be understood as indicating or implying relative importance.

[0049] In the description of the present application, it is necessary to explain that, unless otherwise explicitly specified and limited, the terms "mounting", "provided with", "sleeved / connected", "connected" and the like should be understood broadly, for example, "connected" can be fixedly connected, or detachably connected, or integrally connected; can be mechanically connected, or electrically connected; can be directly connected, or indirectly connected through an intermediate medium, or the internal communication of two elements. For those skilled in the art, the specific meanings of the above terms in the present application can be understood according to the specific circumstances.

[0050] Embodiment one:

[0051] Referring to Figure 1 A medium and long range projection type point burner for forest is disclosed, comprising a launching tube assembly 1, a pneumatic propulsion system 2, a glycol injection system 3, a combustion ball feeding mechanism 4, an operating handle 7 and a trigger assembly 6. The launching tube assembly 1 is provided with a sliding sleeve, and is reciprocally mounted on the operating handle 7 through the sliding sleeve. A return spring 8 is assembled between the sliding sleeve and the launching tube assembly 1. The return spring 8 is made of 65Mn spring steel material, has a stiffness coefficient of 5N / mm, and a maximum compression stroke of 30mm. One end of the return spring 8 is fixed to an inner annular boss of the sliding sleeve by welding, and the other end is fixed to a corresponding boss on the outer wall of the launching tube assembly 1 by a buckle, thereby providing a structural basis for automatic loading of the combustion ball 41.

[0052] The whole machine is made of high-strength aluminum alloy and engineering composite material. Under the premise of ensuring the structural strength, the total mass is controlled below 4kg, realizing the lightweight of the equipment, which is very suitable for single soldier carrying and long time field operation, and has excellent corrosion resistance.

[0053] Referring to Figure 3 And Figure 4 The pneumatic propulsion system 2 is connected with the operating handle 7 through a quick release interface. The quick release interface is specifically a buckle type or a threaded quick release structure, so that the pneumatic propulsion system 2 can be quickly separated or combined with the operating handle 7, and the assembly and disassembly can be completed by hand, greatly facilitating the maintenance and transportation of the system. The pneumatic propulsion system 2 comprises a high-pressure gas cylinder 21, a pressure regulating valve 22 and a pneumatic check valve 23 as a control valve connected in series through a gas circuit. The trigger assembly 6 comprises a trigger 61, which is linked with the pneumatic check valve 23. Pulling the trigger 61 can drive the valve core of the pneumatic check valve 23 to act, so that the gas circuit is open to release high-pressure gas. Releasing the trigger 61 can reset the pneumatic check valve 23 to close the gas circuit. At the same time, the high-pressure gas cylinder 21 is provided with a detachable interface, which is convenient for replacing gas cylinders of different capacities, and improves the continuous operation ability and adaptability of the equipment.

[0054] Referring to Figure 1The system is integrated with a safety protection mechanism: a pressure relief valve 5 is connected in parallel between the pressure regulating valve 22 and the pneumatic check valve 23 on the high-pressure gas path, the inlet end of which is connected to the main gas path, and the outlet end is connected to the atmosphere. When the system pressure abnormally rises, the pressure relief valve 5 automatically opens to release pressure, ensuring safe operation.

[0055] With reference to Figure 1 and Figure 5 The ethylene glycol injection system 3 is connected to the launch tube assembly 1 through a buckle type quick release interface, realizing modular independent disassembly and assembly. This quick release interface includes positioning pins, locking buckles, and O-rings. The disassembly and assembly can be completed by hand pressing the buckle, and the sealing performance after connection is guaranteed. The ethylene glycol injection system 3 includes a liquid storage bottle 31, a mechanical injection pump 32, an injection needle 33, a check valve 34, and a pressure plate handle 35. The liquid outlet of the liquid storage bottle 31 is in communication with the liquid inlet end of the mechanical injection pump 32. The liquid outlet end of the mechanical injection pump 32 is in communication with the liquid inlet end of the injection needle 33 through a pipeline provided with a check valve 34, and the injection port of the injection needle 33 corresponds to the inner cavity of the launch tube assembly 1.

[0056] With reference to Figure 6 When the operator operates the pressure plate handle 35, the pressure plate handle 35 can rotate forward and backward and drive the injection needle 33 to make a circular motion through a transmission relationship. In the initial stage of injection, the injection needle 33 is driven to penetrate into the sealing structure outside the combustion ball 41. After the mechanical injection pump 32 completes the quantitative injection of ethylene glycol, the pressure plate handle 35 is reversely rotated, and the injection needle 33 exits the combustion ball 41, thereby completing the coherent action of penetration and exit.

[0057] With reference to Figure 2 The combustion ball feeding mechanism 4 is a vertical cartridge structure, and a plurality of combustion balls 41 are placed inside. The combustion ball 41 is a hollow sphere made of polystyrene, encapsulating potassium permanganate powder inside and being waterproof treated outside. A ball drop hole 42 is formed at the bottom of the combustion ball feeding mechanism 4, corresponding to the bullet inlet of the launch tube assembly 1. In addition, a liquid injection window 43 is formed on the bottom side wall of the combustion ball feeding mechanism 4, corresponding to the movement track of the injection needle 33. When the combustion ball 41 is in the bottommost position of the feeding mechanism, the spherical part is exposed through the liquid injection window 43, allowing the injection needle 33 to penetrate and complete the injection operation.

[0058] The use flow of the present application is as follows: in operation, first, the pressure plate handle 35 of the ethylene glycol injection system 3 is pressed down to drive the mechanical injection pump 32 to operate, so that the injection needle 33 penetrates through the injection window 43 of the bottom side wall of the combustion ball feeding mechanism 4, pierces the shell of the combustion ball 41 to be launched inside, and injects 0.5 ml of ethylene glycol solution. After the injection is completed, the injection needle 33 automatically withdraws. Then, the front of the launching tube assembly 1 is pulled, and the slide sleeve mechanism drives it to move backward, so that the combustion ball 41 that has completed the injection falls into the launching tube assembly 1 through the ball falling hole 42 at the bottom of the combustion ball feeding mechanism 4 under the action of gravity, and the automatic loading is completed. Subsequently, the launching tube assembly 1 is released, and the launching tube assembly 1 is returned to the original position under the action of the return spring 8 and the positioning of the combustion ball 41 is completed. Finally, the trigger 61 of the trigger assembly 6 is pulled to open the pneumatic check valve 23, so that the gas in the high-pressure gas cylinder 21 pushes the combustion ball 41 in the launching tube assembly 1 to be launched at a preset initial speed after being adjusted by the pressure regulating valve 22. After the combustion ball 41 falls to the ground, it forms a sustained fire source by self-ignition after 20-60 seconds of chemical delay. The entire flow is realized by mechanical linkage to realize the sequential operation of injection, loading and launching without the intervention of external energy sources.

[0059] The implementation principle of the present application is as follows: the device is based on the principles of high-pressure gas dynamics and redox chemistry to realize the functions: the pneumatic propulsion system 2 generates directional kinetic energy in a closed tube cavity by adjustable high-pressure gas to drive the combustion ball 41 to obtain an initial speed; the mechanical injection system converts the mechanical energy of the pressure plate handle 35 into the hydraulic energy of the mechanical injection pump 32 through lever transmission to accurately control the ethylene glycol delivery amount; the potassium permanganate in the combustion ball 41 reacts with ethylene glycol to produce a violent redox reaction, and the reaction heat accumulates to the ignition point to cause self-ignition; the feeding mechanism utilizes the gravitational potential energy and the movement of the tube body to realize automatic bullet feeding; and the safety system realizes overpressure relief through the elastic mechanical response of the pressure relief valve 5. The sub-systems are kept functionally independent and mutually cooperative through the modular quick-release structure, the whole body adopts lightweight materials and sealing design to ensure environmental adaptability, and finally realizes the remote ignition function which is safe, reliable, precise and controllable.

[0060] The embodiments of the specific implementation are the preferred embodiments of the present application, but do not limit the protection scope of the present application, so that: any equivalent changes made according to the structure, shape, principle of the present application should be covered within the protection scope of the present application.

Claims

1. A medium-to-long-range projection-type igniter for forest use, characterized in that, The launching tube assembly (1), the pneumatic propulsion system (2), the ethylene glycol injection system (3), the combustion ball feeding mechanism (4), the pressure relief valve (5), the trigger assembly (6) and the operating handle (7), The launching tube assembly (1) is provided with a sliding sleeve, which is movably installed on the operating handle (7) through the sliding sleeve. The connection between the sliding sleeve and the launching tube assembly (1) is provided with a reset spring (8). The pneumatic propulsion system (2) is detachably fixedly connected with the operating handle (7), and the pneumatic propulsion system (2) is communicated with the launching tube assembly (1) through a high-pressure gas pipeline. The ethylene glycol injection system (3) is detachably fixedly connected with the launching tube assembly (1), and the injection port of the ethylene glycol injection system (3) corresponds to the inner cavity of the combustion ball feeding mechanism (4). The combustion ball feeding mechanism (4) is provided with a ball falling hole (42) at the bottom, which corresponds to the bullet inlet of the launching tube assembly (1). The pressure relief valve (5) is arranged on the high-pressure gas pipeline of the pneumatic propulsion system (2), and the outlet end of the pressure relief valve (5) is open to the atmosphere. The trigger assembly (6) is linked with the control valve of the pneumatic propulsion system (2).

2. A medium-long range projecting point burner for forests 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 through a gas pipeline. The pneumatic check valve (23) is the control valve of the pneumatic propulsion system (2).

3. A medium-long range projecting point burner for forests according to claim 2, characterized in that, The high-pressure gas cylinder (21) is provided with a detachable interface.

4. The medium-long range projecting point burner for forests according to claim 2, characterized in that, The trigger assembly (6) includes a trigger (61), which is linked with the pneumatic check valve (23) to control the opening and closing of the pneumatic check valve (23).

5. The medium-long range projecting point burner for forests according to claim 1, characterized in that, The ethylene glycol injection system (3) includes a liquid storage bottle (31), a mechanical liquid injection pump (32), an injection needle (33), a check valve (34) and a pressure plate handle (35). The liquid outlet of the liquid storage bottle (31) is communicated with the liquid inlet end of the mechanical liquid injection pump (32). The liquid outlet end of the mechanical liquid injection pump (32) is communicated with the liquid inlet end of the injection needle (33) through a pipeline provided with the check valve (34), and the pressure plate handle (35) is drivingly connected with the mechanical liquid injection pump (32).

6. The medium-to-long range projection type point burner for a forest according to claim 1, wherein The combustion ball feeding mechanism (4) is a vertical cartridge structure, a plurality of combustion balls (41) are placed in the combustion ball feeding mechanism (4), and a liquid injection window (43) is formed in the bottom side wall of the combustion ball feeding mechanism (4).

7. A medium-to-long range projection-type point burner for forests according to claim 6, characterized in that, The combustion ball (41) is a hollow sphere made of polystyrene, and the inner cavity of the sphere shell is filled with potassium permanganate powder, and the outer surface of the sphere shell is provided with a sealing layer.

8. The medium-to-long range projection-type point burner for a forest according to claim 1, wherein The pneumatic propulsion system (2) is connected with the operating handle (7) through a quick release interface.

9. The medium-to-long range projection-type point burner for forests according to claim 1, characterized by The ethylene glycol injection system (3) is connected with the launching tube assembly (1) through a quick release interface.

10. The medium-to-long range projection-type point burner for a forest according to claim 1, wherein The point burner is made of high-strength aluminum alloy and engineering composite material.

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