A multiple-shot, automatic-reloading fire extinguishing device

Abstract

This invention provides a fire extinguishing device capable of multiple-round burst firing and automatic reloading. The device includes a gun barrel with an internal magazine containing a guide groove (U-shaped) and a muzzle on one side. It also includes a directional fire extinguishing projectile assembly comprising multiple projectiles and a sabot for carrying them, the sabot slidably positioned within the guide groove. An automatic reloading mechanism includes a same-layer feeding mechanism and a cross-layer feeding mechanism. A triggering mechanism located at the muzzle triggers the directional fire extinguishing projectiles in their ready-to-fire position. The sabot is arranged in upper and lower layers within the magazine. This invention provides a fire extinguishing device capable of multiple-round burst firing and automatic reloading, offering the advantage of automatically completing continuous operations of directional fire extinguishing projectile triggering, empty cartridge ejection, and new ammunition replenishment.

Description

Technical Field

[0001] This invention relates to the field of fire extinguishing equipment technology, and in particular to a fire extinguishing device capable of firing multiple rounds in succession and automatically reloading rounds. Background Technology

[0002] In fire prevention in industries such as metallurgy, casting, power, and chemicals, directional fire extinguishing bombs are often deployed on the front wall of dust collectors in high-temperature flues and on the roofs of tall factory buildings. These directional fire extinguishing bombs are usually fixed in high-altitude or confined spaces, making their maintenance and replacement extremely inconvenient. They require specialized equipment or shutdown for maintenance, resulting in high operational risks, high costs, and slow response times.

[0003] Existing directional fire extinguishing bombs are mostly single-trigger type, becoming empty after triggering and requiring immediate manual replacement. In scenarios with high fire frequency, such as spark hazard protection at the inlet of a bag filter dust collector, a single directional fire extinguishing bomb may not be able to completely extinguish the fire, while manual replacement is delayed, leading to the risk of secondary reignition. Furthermore, existing devices lack an efficient automatic refill mechanism, preventing continuous multiple fire suppressions and limiting their application in industrial environments requiring rapid and continuous response.

[0004] Therefore, it is necessary to provide a new fire extinguishing device that can fire multiple rounds in succession and automatically reload to solve the above-mentioned technical problems. Summary of the Invention

[0005] The technical problem solved by this invention is to provide a fire extinguishing device that can automatically complete the continuous operation of triggering directional fire extinguishing shells, ejecting empty shell casings, and replenishing new shells, and can fire multiple shells in succession and automatically change shells.

[0006] To solve the above-mentioned technical problems, the fire extinguishing device provided by the present invention, which can fire multiple rounds in succession and automatically change rounds, includes: a gun barrel, the gun barrel having a magazine inside, the magazine having a guide groove inside, the guide groove being U-shaped, and a muzzle on one side of the gun barrel; A directional fire extinguishing grenade assembly, comprising a plurality of directional fire extinguishing grenades and a grenade support mechanism for supporting the directional fire extinguishing grenades, the grenade support mechanism being slidably disposed within the guide groove; An automatic ammunition changing mechanism, comprising a same-layer ammunition feeding mechanism and a cross-layer ammunition feeding mechanism; A triggering mechanism is provided at the muzzle and is used to trigger a directional fire extinguishing projectile located in the ready-to-fire position. The sabot mechanism is arranged in two layers inside the magazine; the cross-layer feeding mechanism is used to transfer the empty shell casings after the upper layer is triggered to the lower layer, and to transfer the directional fire extinguishing shells stored in the lower layer to the upper layer; the same-layer feeding mechanism is used to drive the upper layer directional fire extinguishing shells to move forward to fill the gap and drive the lower layer directional fire extinguishing shells to move backward.

[0007] Preferably, the same-layer ammunition feeding mechanism includes an electric telescopic rod, an ammunition feeding fork arm, a fork arm support, a support tooth, and a servo mechanism.

[0008] Preferably, the servo mechanism is connected to the feed fork arm, and the servo mechanism includes a 90° servo, a crank arm with pulleys, and a crank arm guide rail.

[0009] Preferably, the cross-layer ammunition feeding mechanism includes a front rocker arm and a rear rocker arm, the front rocker arm and the rear rocker arm are connected to the same bidirectional reduction motor, and the bidirectional reduction motor is installed on one side of the ammunition magazine.

[0010] Preferably, the triggering mechanism includes metal brushes disposed on both sides of the muzzle; the tail tube crossbar of the projectile support mechanism is provided with annular metal electrodes at both ends; when the directional fire extinguishing projectile is pushed to the muzzle standby position, the annular metal electrodes are in close contact with the metal brushes to form a conductive circuit.

[0011] Preferably, the sabot mechanism includes a sabot guide side plate, a tail tube, a tail tube crossbar, a front band, a guide side plate center column, and a guide side plate end column.

[0012] Preferably, the guide groove includes a center panel, a side panel, a bottom plate, a center guide frame, and a side guide frame.

[0013] Preferably, the guide plate central column of the ejector mechanism protrudes from the surface of the central panel and the side panel, for use in conjunction with the cross-layer ejection feeding mechanism.

[0014] Preferably, the same-layer ammunition feeding mechanisms on both sides of the ammunition magazine are arranged in a diagonal mirror image.

[0015] Preferably, the ends of the front rocker arm and the rear rocker arm are provided with folded edges, and the folded edges have an inclined structure; the tails of the front rocker arm and the rear rocker arm are provided with springs, so that the ends of the rocker arms can fall and rotate after passing the top of the central column of the guide plate, so as to complete the one-way capture of the central column of the guide plate.

[0016] Preferably, the bidirectional geared motor is mounted on one side of the magazine via a motor mounting bracket, and the bidirectional geared motor drives the front rocker arm and the rear rocker arm to move via a motor drive shaft, and the rocker arms on both sides of the magazine driven by the same motor move in the same way.

[0017] Preferably, a brush fork arm is provided above the standby ammunition position at the muzzle, and a metal brush is provided at the end of the brush fork arm, with a wiring terminal on the metal brush.

[0018] Preferably, it also includes a processor, which is used to receive fire alarm signals and control the on / off state of the triggering circuit; when the processor receives a fire alarm signal, the control circuit is connected, and the current passes through the metal brush and the annular metal electrode to excite the initiator inside the directional fire extinguishing bomb, thereby realizing the spraying of the fire extinguishing agent.

[0019] Preferably, the working cycle of the same-layer ammunition feeding mechanism includes the following four stages: In standby mode: the servo arm is locked at 90°, the feed fork arm is in the raised state, the support teeth lock each sabot in the guide groove, and the first directional fire extinguishing shell is locked in the muzzle standby position. Trigger-on unlocking phase: After the first directional fire extinguishing grenade is triggered, the servo crank arm rotates to the 0° position, the delivery fork arm descends, the support tooth disengages from the grenade holder, and the electric telescopic rod prepares to retract. Retraction and positioning phase: The servo arm remains at 0°, the feed fork arm remains in a descending state, the support tooth remains in a low position, and the electric telescopic rod retracts to the tail of the layer, so that the support tooth is located below the subsequent feed tooth; During the projectile placement phase: the servo arm rotates to the 90° position, the projectile fork arm is raised, the support tooth locks the subsequent projectile support, the electric telescopic rod extends, and the subsequent directional fire extinguishing projectile is pushed along the guide groove to the muzzle standby position.

[0020] Preferably, the capture action cycle of the front or rear rocker arm in the cross-layer feeding mechanism includes: A bidirectional geared motor drives the rocker arm to swing upwards. The rocker arm swings to the center post of the guide side plate of the spring bar, and the center post of the guide side plate, which protrudes from the surface of the center panel, blocks the rocker arm. The folded edge at the end of the rocker arm collides with the central column of the guide side plate. The inclined structure of the folded edge causes the central column of the guide side plate to push against the folded edge. The spring at the tail of the rocker arm is compressed, and the end of the rocker arm is lifted and slides over the top of the central column of the guide side plate. After the end of the rocker arm passes over the center column of the guide side plate, it falls and rotates, completing the capture of the center column of the guide side plate; The rocker arm continues to rotate, pushing the captured sabot along the guide groove to the target missile position.

[0021] Preferably, the lower layer of the magazine has a pre-set empty cartridge position for receiving the first empty cartridge case that moves down after the upper layer is triggered.

[0022] Preferably, the rear side of the gun barrel is provided with a shell-changing port for replacing the shell with a new one after all the directional fire extinguishing shells have been triggered.

[0023] Preferably, the same-layer feeding mechanism, cross-layer feeding mechanism, and servo motors, forks, and support teeth mechanisms of the upper and lower missile positions on both sides of the ammunition magazine operate in a coordinated manner according to a logical sequence. The specific coordination logic is as follows: After the directional fire extinguishing bomb at the very front of the upper layer is triggered, the bidirectional reduction motor starts, driving the front rocker arm of the cross-layer feeding mechanism on both sides to swing up and capture the guide side plate center column of the triggered bomb sabot; When the servo crank arm is turned to the 0° position, the feed fork arm is lowered to unlock the trolley from the triggered trolley. The electric telescopic rod of the feed mechanism on the same layer retracts, and the trolley moves to the trolley below the trolley at the rear where the ammunition is prepared. The front rocker arm swings down, moving the already triggered empty cartridge case from the upper layer to the empty cartridge position on the lower layer; When the servo arm is rotated to the 90° position, the feed fork arm lifts the support teeth to lock the prepared ammunition tray, and the electric telescopic rod extends to push all the upper-level directional fire extinguishing bombs forward by one bomb position. The rear rocker arm of the cross-layer ammunition delivery mechanism swings down to capture the last directional fire extinguishing ammunition in the lower layer, and the rear rocker arm swings up to move the reserve ammunition to the empty ammunition position at the end of the upper layer.

[0024] Preferably, the height of the guide side plate end post of the spring-loaded mechanism is lower than the surface of the bottom plate, so as to smoothly pass through the guide grooves behind the center panel and the side panel.

[0025] Compared with related technologies, the fire extinguishing device with multi-shot firing capability and automatic reloading provided by the present invention has the following beneficial effects: This invention provides a fire extinguishing device capable of firing multiple rounds in rapid succession and automatically changing ammunition. Through the linkage of guide grooves, double-layer ammunition magazines, swinging arms, and reciprocating ammunition feeding mechanisms, it can achieve an automated cycle from triggering to emptying, to loading, and then to standby again. This allows the device to handle multiple consecutive or intermittent fires after a single loading, greatly reducing the frequency of manual intervention and maintenance costs. By pre-setting an empty ammunition position in the lower initial position, a buffer space is provided for the downward movement of the first empty ammunition casing, effectively avoiding mechanical interference and jamming problems that are prone to occur in multi-layer ammunition conveying mechanisms, thus improving system reliability. This invention is specifically designed for high-altitude, narrow, unattended, and high-spark-splashing potential hazard points such as the end of high-temperature flues in metallurgical and foundry enterprises and in front of bag filters. Its automation and continuous operation capabilities perfectly match the core needs of such scenarios, which are characterized by "difficult maintenance, frequent fires, and the need for rapid suppression," making it highly practical. By setting multiple ammunition ready to fire, the risk of fire escalation due to incomplete extinguishing by a single directional fire extinguishing ammunition is reduced. The brush contact triggering method ensures that the ready-to-fire projectile is always in a reliable electrical standby state and responds quickly. Attached Figure Description

[0026] Figure 1 This is a schematic diagram of a preferred embodiment of the fire extinguishing device provided by the present invention, which is capable of firing multiple rounds in succession and automatically reloading rounds. Figure 2 for Figure 1 The diagram shows the structure after the gun barrel has been removed; Figure 3 for Figure 2The diagram shows the split structure. Figure 4 A schematic diagram of the shell support, triggering mechanism, and single-shell delivery mechanism of the fire extinguishing device capable of multiple consecutive firings and automatic shell changing provided by the present invention; Figure 5 A schematic diagram of the cyclic operation of the same-layer ammunition feeding mechanism of the fire extinguishing device with multiple consecutive firing and automatic ammunition changing provided by the present invention. Figure 6 A schematic diagram showing the cyclical operation of the cross-layer ammunition feeding mechanism of the fire extinguishing device with multi-ammunition firing capability and automatic ammunition reloading provided by the present invention. Figure 7 A schematic diagram of the guiding mechanism of the fire extinguishing device with multiple rounds fired in succession and automatic reloading provided by the present invention; Figure 8 This is a schematic diagram of the action logic sequence of the automatic reloading mechanism.

[0027] Labels in the diagram: A. Gun barrel; B. Muzzle; 1. Directional fire extinguishing projectile; 2. Cargo sabot mechanism; 2.1. Cargo sabot guide plate; 2.2. Tail tube; 2.3. Tail tube crossbar; 2.4. Front band; 2.5. Guide plate center post; 2.6. Guide plate end post; 3. Same-layer feeding mechanism; 3.1. Electric telescopic rod; 3.2. Feeding fork arm; 3.3. Fork arm base; 3.4. Cargo sabot tooth; 3.5. 90° servo motor; 3.6. With pulley 3.7. Crank arm, 4. Guide groove, 4.1. Center panel, 4.2. Side panel, 4.3. Base plate, 4.4. Center guide frame, 4.5. Side guide frame, 5. Cross-layer feeding mechanism, 5.1. Front rocker arm, 5.2. Rear rocker arm, 6. Bidirectional geared motor, 6.1. Motor fixing bracket, 6.2. Motor drive shaft, 7. Annular electrode, 8. Brush, 8.1. Terminal block, 8.2. Brush fork arm. Detailed Implementation

[0028] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0029] Please refer to the following: Figure 1-8 ,in, Figure 1 This is a schematic diagram of a preferred embodiment of the fire extinguishing device provided by the present invention, which is capable of firing multiple rounds in succession and automatically reloading rounds. Figure 2 for Figure 1 The diagram shows the structure after the gun barrel has been removed; Figure 3 for Figure 2 The diagram shows the split structure. Figure 4 A schematic diagram of the ammunition support, triggering mechanism, and same-layer ammunition feeding mechanism of the fire extinguishing device capable of multiple consecutive firings and automatic ammunition changing provided by the present invention; Figure 5 A schematic diagram of the cyclic operation of the same-layer ammunition feeding mechanism of the fire extinguishing device with multiple consecutive firing and automatic ammunition changing provided by the present invention. Figure 6A schematic diagram showing the cyclical operation of the cross-layer ammunition feeding mechanism of the fire extinguishing device with multi-ammunition firing capability and automatic ammunition reloading provided by the present invention. Figure 7 A schematic diagram of the guiding mechanism of the fire extinguishing device with multiple rounds fired in succession and automatic reloading provided by the present invention; Figure 8 This is a schematic diagram illustrating the operational logic sequence of the automatic reloading mechanism. The fire extinguishing device, capable of multiple-round bursts and automatic reloading, includes: a box-shaped gun barrel A, with a muzzle B at the front end; the interior of gun barrel A forms a magazine. The magazine contains a U-shaped guide groove 4. Multiple ammunition trays 2 are slidably mounted within the guide groove 4. Each ammunition tray 2 carries one directional fire extinguishing projectile 1, with all projectiles 1 pointing directly towards the muzzle B. The ammunition trays 2 are arranged in two rows, upper and lower.

[0030] As attached Figure 1-3 As shown, the automatic ammunition changing mechanism includes a same-layer ammunition feeding mechanism 3 and a cross-layer ammunition feeding mechanism 5.

[0031] The same-layer feeding mechanism comprises an electric telescopic rod 3.1, a feeding fork arm 3.2, a fork arm support 3.3, a support tooth 3.4, and a servo mechanism connected to the top of the feeding fork arm. The servo mechanism comprises a 90° servo motor 3.5, a crank arm with pulleys 3.6, and a crank arm guide rail 3.7. The cross-layer feeding mechanism consists of two bidirectional geared motors 6 on both sides, a front rocker arm 5.1 and a rear rocker arm 5.2 that can swing along the drive shaft.

[0032] The same-layer and cross-layer feeding mechanisms on both sides of the magazine are identical, with the same-layer feeding mechanisms on the same side arranged diagonally in mirror image. The front rocker arm 5.1 and rear rocker arm 5.2 of the cross-layer feeding mechanism 5 on the same side are driven by bidirectional drive motors 6 on both sides of the magazine. The bidirectional drive motors 6 are fixedly mounted on motor mounting brackets 6.1, and drive the front rocker arm 5.1 and rear rocker arm 5.2 of the cross-layer feeding mechanism 5 through motor drive shafts 6.2. The rocker arms driven by the same motor on both sides of the magazine move in unison. When the directional fire extinguishing shell at the very front of the upper layer is triggered, the bidirectional reduction motor 6 starts, driving the front rocker arm 5.1 of the cross-layer feeding mechanism on both sides to swing upward and capture the guide side plate center column 2.5 of the triggered shell. Immediately afterwards, the servo crank arm 3.6 rotates to the 0° position, lowering the feeding fork arm 3.2 to unlock the support tooth 3.4 from the triggered shell support. The electric telescopic rods 3.1 on both sides of the upper shell position retract, and the support tooth moves to below the shell support of the rear reserve shell. The front rocker arms 5.1 on both sides of the shell compartment swing downward, moving the triggered empty shell casing from the upper layer to the empty shell position in the lower layer. Next, the upper servo crank arm 3.6 rotates to the 90° position, raising the support tooth 3.4 through the feeding fork arm 3.2, and the support tooth locks the shell support of the reserve shell. The electric telescopic rods 3.1 on both sides of the upper shell position extend and push all the directional fire extinguishing shells in the upper layer forward by one shell position, allowing the second directional fire extinguishing shell to enter the muzzle standby position. Subsequently, the rear rocker arm 5.2 of the cross-layer feeding mechanism swings down to capture the sabot of the last directional fire extinguishing round in the lower layer, and then the rear rocker arm 5.2 swings up to move the reserve round to the empty round position at the end of the upper layer. The original empty shell casing is then pushed backward in the lower layer by the subsequent action of the same-layer feeding mechanism.

[0033] As attached Figure 4 As shown, above the standby ammunition position at the muzzle is a brush fork arm 8.2, and at the end of the brush fork arm 8.2 is a metal brush 8 with a terminal block 8.1. When the directional fire extinguishing projectile is in place, the annular electrodes 7 on both sides of the tail tube crossbar 2.3 on the projectile support mechanism 2 are in close contact with the brush 8. The tail tube crossbar 2.3 is installed on both sides of the tail tube 2.2, which is installed at the tail of the directional fire extinguishing projectile 1. The front clamp of the projectile support mechanism 2 is fixedly installed at the front end of the directional fire extinguishing projectile 1. After the processor (not shown in the figure) receives the fire alarm signal, the control circuit is connected, and the current passes through the brush 8 and the electrode 7 to activate the initiator inside the directional fire extinguishing projectile 1, thereby realizing the spraying of the fire extinguishing agent.

[0034] like Figure 5 As shown, the specific periodic actions of the same-layer feeding mechanism are as follows: I. Normal standby condition: The servo crank arm 3.6 is locked at 90°, the feed fork arm 3.2 is in the raised state, and the support tooth 3.4, guide groove, and electric telescopic rod 3.1 lock the support arms of ammunition a and b, with ammunition a locked in the muzzle standby position. Ammunition c at the tail of the layer is locked by the rear rocker arm 5.2 of the cross-layer feed mechanism and the guide groove; II. After the triggering of the a-type projectile: the servo crank arm 3.6 rotates and locks at the 0° position, the projectile feed fork arm 3.2 is in the lowered state, the support tooth 3.4 disengages from the a-type and b-type projectile supports, the electric telescopic rod 3.1 is ready to retract, the a-type projectile is released from the muzzle standby position, and the front rocker arm 5.1 of the cross-layer projectile feed mechanism locks the a-type projectile guide side plate center column. III. The servo crank arm 3.6 remains locked at 0°, the feed fork arm 3.2 is in the lowered state, the support tooth 3.4 remains in the low position, the electric telescopic rod 3.1 retracts to the end of the layer, and the support tooth 3.4 is located below the support of bullets b and c. The front rocker arm 5.1 of the cross-layer feed mechanism pushes bullet a down along the guide groove to the empty bullet position in the lower layer; IV. The servo crank arm 3.6 rotates and locks at 90°, the feed fork arm 3.2 lifts up, the support tooth 3.4 locks the sabots of bullets b and c, and the electric telescopic rod 3.1 begins to extend, pushing bullets b and c along the guide groove to the muzzle position for standby.

[0035] like Figure 6 As shown, the specific cyclical operation of the cross-layer ammunition feeding mechanism is as follows: After the I and a bullets are triggered, the front rocker arm 5.1 of the cross-layer bullet delivery mechanism is driven to swing upward by the bidirectional reduction motor 6 on the other side; II. When the front rocker arm 5.1 of the cross-layer feeding mechanism swings to the guide plate central column 2.5 on the guide plate 2.1 of the a-type ammunition, the surface of the guide plate central column 2.5 protruding from the center panel forms an obstruction to the front rocker arm 5.1. III. During the swinging process, the folded edge at the end of the front rocker arm 5.1 collides with the guide side plate column 2.5. Due to the inclined structure of the folded edge, the column of the side plate supports the folded edge, causing the spring at the tail of the front rocker arm 5.1 to compress, the end of the rocker arm to rise and slide over the top of the column of the side plate 2.5. IV. The end of the front rocker arm 5.1 of the cross-layer feeding mechanism passes over the guide plate central column 2.5 on the guide plate 2.1 of the a-type ammunition and then falls and rotates to complete the capture of the central column 2.5 of the side plate. V. The front rocker arm 5.1 of the cross-layer ammunition feeding mechanism continues to rotate, pushing the captured A-round sabot along the guide groove to the empty ammunition position, completing the cross-layer ammunition feeding action. The rear rocker arm 5.2 repeats the same action to send the reserve ammunition at the rear end of the lower layer into the upper layer ammunition position.

[0036] like Figure 7 As shown, it should be noted that the central column 2.5 of the guide side plate needs to protrude a certain height from the surfaces of the central panel 4.1 and the side panel 4.2 so that the rocker arm 5.2 of the cross-layer feeding mechanism can rotate and capture it after passing over it. The end column 2.6 of the guide side plate is slightly shorter and slightly lower than the surface of the bottom plate 4.3. It can smoothly pass through the guide groove behind the central panel 4.1 and the side panel 4.2. The guide groove 2 includes the symmetrically arranged central panel 4.1, side panel 4.2, bottom plate 4.3, central guide frame 4.4 and side guide frame 4.5. The feeding mechanism 2 moves within the U-shaped guide groove 2 formed by the central panel 4.1, side panel 4.2, bottom plate 4.3, central guide frame 4.4 and side guide frame 4.5.

[0037] like Figure 8As shown, the ammunition feeding mechanisms on both sides of the ammunition magazine and the servo motors, forks, and support teeth mechanisms of the upper and lower ammunition positions are completely interlocked and work in a logical sequence. After all the shells have been fired, the rear ammunition changing port is opened to replace the new shells.

[0038] Compared with related technologies, the fire extinguishing device with multi-shot firing capability and automatic reloading provided by the present invention has the following beneficial effects: This invention provides a fire extinguishing device capable of firing multiple rounds in rapid succession and automatically changing ammunition. Through the linkage of guide grooves, double-layer ammunition magazines, swinging arms, and reciprocating ammunition feeding mechanisms, it can achieve an automated cycle from triggering to emptying, to loading, and then to standby again. This allows the device to handle multiple consecutive or intermittent fires after a single loading, greatly reducing the frequency of manual intervention and maintenance costs. By pre-setting an empty ammunition position in the lower initial position, a buffer space is provided for the downward movement of the first empty ammunition casing, effectively avoiding mechanical interference and jamming problems that are prone to occur in multi-layer ammunition conveying mechanisms, thus improving system reliability. This invention is specifically designed for high-altitude, narrow, unattended, and high-spark-splashing potential hazard points such as the end of high-temperature flues in metallurgical and foundry enterprises and in front of bag filters. Its automation and continuous operation capabilities perfectly match the core needs of such scenarios, which are characterized by "difficult maintenance, frequent fires, and the need for rapid suppression," making it highly practical. By setting multiple ammunition ready to fire, the risk of fire escalation due to incomplete extinguishing by a single directional fire extinguishing ammunition is reduced. The brush contact triggering method ensures that the ready-to-fire projectile is always in a reliable electrical standby state and responds quickly.

[0039] The above description is merely an embodiment of the present invention and does not limit the patent scope of the present invention. Any equivalent structural or procedural transformations made based on the content of the present invention specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of the present invention.

Claims

1. A fire extinguishing device capable of multiple-round bursts and automatic reloading, characterized in that, include: The gun barrel has an internal magazine, a guide groove inside the magazine, the guide groove being U-shaped, and a muzzle on one side of the gun barrel. A directional fire extinguishing grenade assembly, comprising a plurality of directional fire extinguishing grenades and a grenade support mechanism for supporting the directional fire extinguishing grenades, the grenade support mechanism being slidably disposed within the guide groove; An automatic ammunition changing mechanism, comprising a same-layer ammunition feeding mechanism and a cross-layer ammunition feeding mechanism; A triggering mechanism is provided at the muzzle and is used to trigger a directional fire extinguishing projectile located in the ready-to-fire position. The sabot mechanism is arranged in two layers inside the magazine; the cross-layer feeding mechanism is used to transfer the empty shell casings after the upper layer is triggered to the lower layer, and to transfer the directional fire extinguishing shells stored in the lower layer to the upper layer; The same-layer feeding mechanism is used to drive the upper-layer directional fire extinguishing bombs to move forward to fill the gap and to drive the lower-layer directional fire extinguishing bombs to move backward.

2. The fire extinguishing device capable of multiple consecutive firings and automatic reloading according to claim 1, characterized in that, The same-layer ammunition feeding mechanism includes an electric telescopic rod, an ammunition feeding fork arm, a fork arm support, a support tooth, and a servo mechanism.

3. The fire extinguishing device capable of multiple consecutive firings and automatic reloading according to claim 2, characterized in that, The servo mechanism is connected to the feed fork arm, and the servo mechanism includes a 90° servo, a crank arm with pulleys, and a crank arm guide rail.

4. The fire extinguishing device capable of multiple consecutive firings and automatic reloading according to claim 1, characterized in that, The cross-layer ammunition feeding mechanism includes a front rocker arm and a rear rocker arm, which are connected to the same bidirectional reduction motor, which is installed on one side of the ammunition magazine.

5. The fire extinguishing device capable of multiple consecutive firings and automatic reloading according to claim 4, characterized in that, The triggering mechanism includes metal brushes located on both sides of the muzzle; the tail tube crossbar of the projectile support mechanism has annular metal electrodes at both ends; when the directional fire extinguishing projectile is pushed to the muzzle standby position, the annular metal electrodes and the metal brushes are in close contact to form a conductive circuit.

6. The fire extinguishing device capable of multiple-round bursts and automatic reloading according to claim 5, characterized in that, The sabot mechanism includes a sabot guide side plate, a tail tube, a tail tube crossbar, a front band, a guide side plate center column, and a guide side plate end column.

7. The fire extinguishing device capable of multiple consecutive firings and automatic reloading according to claim 6, characterized in that, The guide groove includes a center panel, a side panel, a base plate, a center guide frame, and a side guide frame.

8. The fire extinguishing device capable of multiple consecutive firings and automatic reloading according to claim 7, characterized in that, The guide plate central column of the sabot mechanism protrudes from the surface of the central panel and the side panel, and is used to cooperate with the cross-layer feeding mechanism.

9. The fire extinguishing device capable of multiple consecutive firings and automatic reloading according to claim 1, characterized in that, The ammunition feeding mechanisms on both sides of the ammunition magazine are arranged in a diagonal mirror image.

10. The fire extinguishing device capable of multiple consecutive firings and automatic reloading according to claim 4, characterized in that, The ends of the front rocker arm and the rear rocker arm are provided with folded edges, which have an inclined structure; the tails of the front rocker arm and the rear rocker arm are provided with springs, so that the ends of the rocker arms can fall and rotate after passing the top of the central column of the guide plate, so as to complete the one-way capture of the central column of the guide plate.

11. The fire extinguishing device capable of multiple consecutive firings and automatic reloading according to claim 4, characterized in that, The bidirectional geared motor is mounted on one side of the magazine via a motor mounting bracket. The bidirectional geared motor drives the front rocker arm and the rear rocker arm to move via a motor drive shaft, and the rocker arms on both sides of the magazine driven by the same motor move in the same way.

12. The fire extinguishing device capable of multiple consecutive firings and automatic reloading according to claim 5, characterized in that, A brush fork arm is provided above the standby ammunition position at the muzzle, and a metal brush is located at the end of the brush fork arm, with a wiring terminal on the metal brush.

13. The fire extinguishing device capable of multiple-round bursts and automatic reloading according to claim 1, characterized in that, It also includes a processor, which is used to receive fire alarm signals and control the on / off state of the triggering circuit; when the processor receives a fire alarm signal, the control circuit is connected, and the current passes through the metal brush and the ring-shaped metal electrode to excite the initiator inside the directional fire extinguishing bomb, thereby realizing the spraying of the fire extinguishing agent.

14. The fire extinguishing device capable of multiple-round bursts and automatic reloading according to claim 2, characterized in that, The working cycle of the same-layer ammunition feeding mechanism includes the following four stages: In standby mode: the servo arm is locked at 90°, the feed fork arm is in the raised state, the support teeth lock each sabot in the guide groove, and the first directional fire extinguishing shell is locked in the muzzle standby position. Trigger-on unlocking phase: After the first directional fire extinguishing grenade is triggered, the servo crank arm rotates to the 0° position, the delivery fork arm descends, the support tooth disengages from the grenade holder, and the electric telescopic rod prepares to retract. Retraction and positioning phase: The servo arm remains at 0°, the feed fork arm remains in a descending state, the support tooth remains in a low position, and the electric telescopic rod retracts to the tail of the layer, so that the support tooth is located below the subsequent feed tooth; During the projectile placement phase: the servo arm rotates to the 90° position, the projectile fork arm is raised, the support tooth locks the subsequent projectile support, the electric telescopic rod extends, and the subsequent directional fire extinguishing projectile is pushed along the guide groove to the muzzle standby position.

15. The fire extinguishing device capable of multiple consecutive firings and automatic reloading according to claim 4, characterized in that, The capture action cycle of the front or rear rocker arm in the cross-layer feeding mechanism includes: A bidirectional geared motor drives the rocker arm to swing upwards. The rocker arm swings to the center post of the guide side plate of the spring bar, and the center post of the guide side plate, which protrudes from the surface of the center panel, blocks the rocker arm. The folded edge at the end of the rocker arm collides with the central column of the guide side plate. The inclined structure of the folded edge causes the central column of the guide side plate to push against the folded edge. The spring at the tail of the rocker arm is compressed, and the end of the rocker arm is lifted and slides over the top of the central column of the guide side plate. After the rocker arm end passes the guide side plate center column, it falls and rotates, completing the capture of the guide side plate center column; The rocker arm continues to rotate, pushing the captured sabot along the guide groove to the target missile position.

16. The fire extinguishing device capable of multiple-round bursts and automatic reloading according to claim 1, characterized in that, The lower layer of the magazine has a preset empty cartridge position for receiving the first empty cartridge case that moves down after the upper layer is triggered.

17. The fire extinguishing device capable of multiple consecutive firings and automatic reloading according to claim 1, characterized in that, The rear side of the gun barrel is equipped with a reloading port for replacing the ammunition after all directional fire extinguishing shells have been triggered.

18. The fire extinguishing device capable of multiple-round bursts and automatic reloading according to claim 1, characterized in that, The same-layer and cross-layer feeding mechanisms on both sides of the ammunition magazine, as well as the servo motors, forks, and support teeth mechanisms of the upper and lower ammunition positions, operate in a coordinated manner according to a logical sequence. The specific coordination logic is as follows: After the directional fire extinguishing bomb at the very front of the upper layer is triggered, the bidirectional reduction motor starts, driving the front rocker arm of the cross-layer feeding mechanism on both sides to swing up and capture the guide side plate center column of the triggered bomb sabot; When the servo crank arm is turned to the 0° position, the feed fork arm is lowered to unlock the trolley from the triggered trolley. The electric telescopic rod of the feed mechanism on the same layer retracts, and the trolley moves to the bottom of the trolley with the trolley ready for ammunition. The front rocker arm swings down, moving the triggered empty cartridge case from the upper layer to the empty cartridge position on the lower layer; When the servo arm is rotated to the 90° position, the feed fork arm lifts the support teeth to lock the prepared ammunition tray, and the electric telescopic rod extends to push all the upper-level directional fire extinguishing bombs forward by one bomb position. The rear rocker arm of the cross-layer ammunition delivery mechanism swings down to capture the last directional fire extinguishing ammunition in the lower layer, and the rear rocker arm swings up to move the reserve ammunition to the empty ammunition position at the end of the upper layer.

19. The fire extinguishing device capable of multiple consecutive firings and automatic reloading according to claim 7, characterized in that, The height of the guide side plate end post of the ejector mechanism is lower than the surface of the bottom plate, so as to smoothly pass through the guide grooves behind the center panel and the side panel.

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