Intelligent defense fire-fighting foam cannon spraying mechanism

Abstract

The utility model relates to fire -fighting foam cannon technical field discloses an intelligent defence fire -fighting foam cannon injection mechanism, the outside fixed connection of injection cannon has foam pipe, the outside fixed connection of foam pipe has external tube, the outside of foam pipe is equipped with spring no.

Description

Technical Field

[0001] This utility model relates to the field of fire-fighting foam cannon technology, and in particular to an intelligent defensive fire-fighting foam cannon spraying mechanism. Background Technology

[0002] In the field of firefighting, foam cannons are important fire extinguishing equipment, and the performance of their nozzles directly affects the fire extinguishing effect. Different fire scenarios require different types of nozzles to achieve the optimal foam spray pattern and coverage. Therefore, rapid nozzle replacement is crucial for efficient fire extinguishing. However, existing foam cannon nozzle replacement mechanisms have many shortcomings. Traditional structures often use bolt fixing or complex snap-fit ​​designs, requiring tools for disassembly and installation, making the process cumbersome and time-consuming. In emergency fire situations, this inefficient replacement method can easily delay firefighting efforts and may even lead to the spread of fire due to untimely replacement, failing to meet emergency firefighting needs. Therefore, an intelligent defensive foam cannon spraying mechanism is proposed to solve the above problems. Utility Model Content

[0003] To overcome the above shortcomings, this utility model provides an intelligent defensive fire-fighting foam cannon spraying mechanism, which aims to improve the problems of slow and unstable nozzle replacement in the prior art.

[0004] To achieve the above objectives, the present invention adopts the following technical solution: A smart fire-fighting foam cannon spraying mechanism includes a foam tube fixedly connected to the outside of the spray cannon, an external tube fixedly connected to the outside of the foam tube, a spring sleeved on the outside of the foam tube, a sliding sleeve slidably connected to the outside of the foam tube, multiple push handles fixedly connected to the outside of the sliding sleeve, multiple locking balls engaged inside the foam tube, a spray head slidably connected inside the foam tube, a ball groove opened on the outside of the spray head, and a windproof component to prevent spray deviation slidably connected to the outside of the external tube. As a further description of the above technical solution: The windproof component includes a windproof cover, the windproof cover is slidably connected to the outside of the external tube, the windproof cover is fixedly connected to the outside of multiple clips, the external tube is provided with multiple slots, and springs are fixedly connected inside the multiple slots, with a fixed ball fixedly connected to one end of each spring. As a further description of the above technical solution: One end of the spring is fixedly connected to the outside of the external tube, and the other end of the spring is fixedly connected to the outside of the sliding sleeve. As a further description of the above technical solution: When the sliding sleeve presses against the multiple ball clamps, the multiple ball clamps engage with the ball groove, thereby controlling the injection head to remain stable; As a further description of the above technical solution: The external sliding connection of the plurality of push handles is external to the external tube, controlling the sliding sleeve to slide outside the foam tube; As a further description of the above technical solution: When the control push affects the sliding sleeve to slide and compresses the spring, the compression of the sliding sleeve on the multiple ball clamps disappears, which facilitates the disassembly and installation of the spray head. As a further description of the above technical solution: When the external locking block is engaged with the inside of the slot, the initial fixation of the windproof cover is completed; As a further description of the above technical solution: Multiple springs push the fixed ball to engage with the locking block, thereby completing the secondary fixation of the windproof cover.

[0005] This utility model has the following beneficial effects: 1. In this utility model, initially, the spring extends, causing the sliding sleeve to press against the retaining ball, thus locking the spray head in place. During disassembly, pushing the handle moves the sliding sleeve, disengaging the retaining ball and allowing the spray head to be pulled out. During installation, inserting a new spray head and pushing in the opposite direction resets the sliding sleeve, pressing against the retaining ball to secure it, achieving quick assembly and disassembly.

[0006] 2. In this utility model, initially, the windproof cover is slidable, and the locking block does not engage with the slot. During installation, the windproof cover is slid to allow the locking block to engage with the slot for initial fixation, and the spring pushes the fixing ball for secondary fixation. During operation, the windproof cover reduces wind force, and it can be slid to disengage during disassembly, allowing for quick assembly and disassembly to suit various scenarios. Attached Figure Description

[0007] Figure 1 This is a three-dimensional schematic diagram of an intelligent defensive fire-fighting foam cannon spraying mechanism proposed in this utility model; Figure 2 A schematic diagram of the push handle of an intelligent defensive fire-fighting foam cannon spraying mechanism proposed in this utility model; Figure 3 This is a schematic diagram of the sliding sleeve of an intelligent defensive fire-fighting foam cannon spraying mechanism proposed in this utility model; Figure 4 This is a schematic diagram of the spray head of an intelligent defensive fire-fighting foam cannon spraying mechanism proposed in this utility model; Figure 5 This is a schematic diagram of the windproof cover of an intelligent defensive fire-fighting foam cannon spraying mechanism proposed in this utility model; Figure 6 for Figure 5 Enlarged view of point A in the middle.

[0008] Legend: 1. Fixed ball; 2. Foam tube; 3. External tube; 4. Spring 1; 5. Sliding sleeve; 6. Push handle; 7. Ball clamp; 8. Spray head; 9. Ball groove; 10. Windproof cover; 11. Clamping block; 12. Clamping groove; 13. Spring 2. Detailed Implementation

[0009] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0010] Reference Figures 1 to 4 This utility model provides an embodiment of an intelligent fire-fighting foam cannon spraying mechanism, comprising a foam tube 2 fixedly connected to the outside of the spray cannon. The foam tube 2 is designed to be fixedly connected to the spray cannon at one end and is the main pipeline for conveying foam mixture. An external pipe 3 is fixedly connected to the outside of the foam tube 2, which is designed to protect the foam tube 2 and enhance the stability of the overall structure. A spring 4 is sleeved on the outside of the foam tube 2, which is designed to return to its original position. A sliding sleeve 5 is slidably connected to the outside of the foam tube 2, which is designed to transmit force and control. One end of the spring 4 is fixedly connected to the outside of the external pipe 3, and the other end of the spring 4 is fixedly connected to the outside of the sliding sleeve 5. Multiple push handles 6 are fixedly connected to the outside of the sliding sleeve 5, which are designed as operating parts for the operator to control the movement of the sliding sleeve 5. By pushing the push handle 6, the operator can easily move the sliding sleeve 5 to slide on the foam tube 2. The external sliding connection of multiple push handles 6 is connected to the outside of the external tube 3 to control the sliding sleeve 5 to slide outside the foam tube 2.

[0011] The foam tube 2 has multiple locking balls 7 inside, which are designed as core limiting components to fix subsequent parts. The foam tube 2 also has a slidable nozzle 8 inside, which determines the spray pattern and coverage of the foam. When the control push handle 6 affects the sliding sleeve 5 and squeezes the spring 4, the squeezing of the multiple locking balls 7 by the sliding sleeve 5 disappears, making it easy to disassemble and install the nozzle 8. The nozzle 8 has a ball groove 9 on its outside, which is designed to cooperate with the locking balls 7 to fix the nozzle 8. When the sliding sleeve 5 squeezes the multiple locking balls 7, the multiple locking balls 7 engage with the ball groove 9, thereby controlling the nozzle 8 to remain stable. The external tube 3 has a windproof component that prevents spray deviation. Reference Figure 5 , Figure 6 The windproof component includes a windproof cover 10, which is designed as the core protective component of the windproof component. Its structure can change the airflow state around the foam jet, forming a wrapping and guiding effect on the ejected foam, reducing the interference of external wind on the foam jet trajectory, and providing a stable output environment for the foam jet. The windproof cover 10 is externally slidably connected to the outside of the external tube 3. Multiple locking blocks 11 are fixedly connected to the outside of the windproof cover 10. The locking blocks 11 are designed to provide initial positional limitation for the windproof cover 10, so that it can be stabilized in the preset windproof working position. Multiple slots 12 are opened on the outside of the external tube 3. The slots 12 are designed to serve as the basis for secondary fixation of the windproof cover 10. When the locking blocks 11 are externally engaged with the inside of the slots 12, the initial fixation of the windproof cover 10 is completed.

[0012] Multiple slots 12 are each fixedly connected to a second spring 13. The second spring 13 is designed here to provide elastic force output for secondary fixation. One end of the second spring 13 is fixedly connected to a fixing ball 1. The fixing ball 1 is designed here to achieve secondary fixation of the windproof cover 10, further enhancing the stability of the windproof cover 10 installation. Multiple second springs 13 push the fixing ball 1 to engage with the slot block 11, thereby completing the secondary fixation of the windproof cover 10.

[0013] Working Principle: The working principle of the quick-change spray head 8 is as follows: In the initial state, spring 4 is in a naturally extended state, and the sliding sleeve 5 maintains its relative position under the tension of spring 4. At this time, multiple retaining balls 7 are squeezed by the sliding sleeve 5, tightly engaging the outer ball groove 9 of the spray head 8, firmly controlling the spray head 8 to be fixed inside the foam tube 2, ensuring stable spraying operation. Disassembly Process: When it is necessary to replace the spray head 8, the operator pushes the push handle 6, causing the sliding sleeve 5 to slide axially along the foam tube 2. During this process, spring 4 is compressed and deformed; as the sliding sleeve 5 moves, its radial compression on the retaining balls 7 disappears, and the retaining balls 7 disengage from the ball groove 9 of the spray head 8, releasing the restriction on the spray head 8. At this time, the spray head 8 can be easily pulled out, completing the disassembly of the old part. Installation Procedure: Align the new nozzle 8 with the foam tube 2 and insert it, ensuring the outer ball groove 9 of the nozzle 8 is precisely aligned with the retaining ball 7. Push the push handle 6 in the opposite direction, causing the sliding sleeve 5 to return to its original position. The spring 4 extends and releases its elasticity, and the sliding sleeve 5 again applies radial pressure to the retaining ball 7, causing the retaining ball 7 to re-engage in the ball groove 9, thus securing the nozzle 8 in place. Through the mechanical linkage of components such as the sliding sleeve 5, retaining ball 7, and spring 4, this structure enables convenient and quick assembly and disassembly of the nozzle 8. In firefighting operations, this significantly reduces nozzle 8 replacement time, improves equipment maintenance efficiency, ensures the continuous and stable execution of firefighting foam cannons, and provides strong support for efficient firefighting operations.

[0014] The working principle of the windproof component is as follows: Initially, the windproof cover 10 is slidable outside the outer tube 3, the locking block 11 is not engaged with the slot 12, the second spring 13 extends naturally, and the fixing ball 1 is located inside the slot 12. During installation, sliding the windproof cover 10 causes the locking block 11 to engage with the slot 12 for initial fixation. The locking block 11 then compresses the fixing ball 1, causing the second spring 13 to retract. After the locking block 11 is in place, the second spring 13 extends and pushes the fixing ball 1 against the locking block 11 to complete secondary fixation. During operation, the windproof cover 10 uses its own shape to wrap around and guide the airflow around the foam jet, reducing wind interference. When disassembling or adjusting, sliding the windproof cover 10 causes the locking block 11 to compress the fixing ball 1, the second spring 13 retracts, and the locking block 11 can be moved after disengaging from the slot 12. Its effect is to resist wind force, allow foam to accurately cover the fire source, improve fire extinguishing efficiency, and adapt to different scenarios through quick assembly and disassembly, while also protecting components and extending equipment life.

[0015] Finally, it should be noted that the above are merely preferred embodiments of the present utility model and are not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. An intelligent defensive fire-fighting foam cannon spraying mechanism, characterized in that: The device includes a foam tube (2) fixedly connected to the outside of the jet cannon, an external tube (3) fixedly connected to the outside of the foam tube (2), a spring (4) sleeved on the outside of the foam tube (2), a sliding sleeve (5) slidably connected to the outside of the foam tube (2), multiple push handles (6) fixedly connected to the outside of the sliding sleeve (5), multiple locking balls (7) engaging inside the foam tube (2), a jet head (8) slidably connected inside the foam tube (2), a ball groove (9) opened on the outside of the jet head (8), and a windproof component to prevent jet deviation slidably connected to the outside of the external tube (3).

2. The intelligent defensive fire-fighting foam cannon spraying mechanism according to claim 1, characterized in that: The windproof component includes a windproof cover (10), the windproof cover (10) is slidably connected to the outside of the external tube (3), a plurality of locking blocks (11) are fixedly connected to the outside of the windproof cover (10), a plurality of locking slots (12) are opened on the outside of the external tube (3), and a spring two (13) is fixedly connected inside the plurality of locking slots (12), and a fixing ball (1) is fixedly connected to one end of the spring two (13).

3. The intelligent defensive fire-fighting foam cannon spraying mechanism according to claim 1, characterized in that: One end of the spring (4) is fixedly connected to the outside of the external tube (3), and the other end of the spring (4) is fixedly connected to the outside of the sliding sleeve (5).

4. The intelligent defensive fire-fighting foam cannon spraying mechanism according to claim 1, characterized in that: When the sliding sleeve (5) squeezes the multiple clamping balls (7), the multiple clamping balls (7) engage with the ball groove (9), thereby controlling the spray head (8) to remain stable.

5. The intelligent defensive fire-fighting foam cannon spraying mechanism according to claim 1, characterized in that: Multiple pushers (6) are externally slidably connected to the outside of the external tube (3) to control the sliding sleeve (5) to slide outside the foam tube (2).

6. The intelligent defensive fire-fighting foam cannon spraying mechanism according to claim 1, characterized in that: When the push handle (6) controls the sliding sleeve (5) to slide and squeeze the spring (4), the squeezing of the sliding sleeve (5) on the multiple ball bearings (7) disappears, which facilitates the disassembly and installation of the spray head (8).

7. The intelligent defensive fire-fighting foam cannon spraying mechanism according to claim 2, characterized in that: When the external locking block (11) is engaged with the inside of the slot (12), the initial fixation of the windproof cover (10) is completed.

8. The intelligent defensive fire-fighting foam cannon spraying mechanism according to claim 2, characterized in that: Multiple springs (13) push the fixed ball (1) to engage with the locking block (11), thereby completing the secondary fixation of the windproof cover (10).

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