Vehicle-mounted water-based aerosol high-efficiency fire extinguisher nozzle
Through the main and auxiliary coordinated spray modes and multi-angle adjustment mechanism, the problems of limited spray range and fixed angle of traditional vehicle-mounted fire extinguisher nozzles are solved, achieving more efficient, flexible fire extinguishing effects and maintenance convenience.
Patent Information
- Application Number
- CN202510897727.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-07-01
- Publication Date
- 2025-09-12
- Estimated Expiration
- Not applicable · inactive patent
AI Technical Summary
The nozzles of traditional vehicle-mounted fire extinguishers have a limited spray range, are difficult to penetrate to the root of the fire, and have a fixed angle that cannot be flexibly adjusted, resulting in low fire extinguishing efficiency and easy clogging.
It adopts the main and auxiliary coordinated spray mode, combined with the angle deflection mechanism and quick-release structure, so that the central nozzle can directly hit the fire source and the auxiliary nozzle can spirally spray, enhancing the coverage area and penetration power, and has multi-angle adjustment function.
Significantly improve fire extinguishing efficiency, expand coverage, enhance penetration, avoid blockage, and improve the maintenance convenience and adaptability of the sprinkler.
Smart Images
Figure CN120617890A_ABST
Abstract
Description
Technical Field
[0001] The present application relates to the technical field of fire extinguisher nozzles, and in particular to a vehicle-mounted water-based aerosol high-efficiency fire extinguisher nozzle. Background Art
[0002] As the number of vehicles continues to rise, on-board fire extinguishers, as critical safety devices for responding to sudden vehicle fires, have a direct impact on the safety of drivers and passengers. During vehicle operation, hidden dangers such as high engine compartment temperatures, aging electrical circuits, and fuel leaks can easily lead to fires. Fires spread rapidly in the confined interior of a vehicle, necessitating on-board fire extinguisher nozzles that can quickly, accurately, and extensively extinguish initial fires, buying valuable time for evacuation and rescue efforts. Currently, most vehicle-mounted fire extinguisher nozzles on the market use a single nozzle design. Their operating principle is to use the internal pressure of the extinguisher to directly discharge the extinguishing agent through a single nozzle. This structure relies on a simple fluid channel to achieve spraying, without complex internal diversion or regulation components. The extinguishing agent is ejected in a columnar or fan-shaped pattern, and the operator manually controls the spray direction to cover the fire source during the firefighting process. However, this type of traditional nozzle has exposed many problems in actual use scenarios. For example, when a fire occurs in the engine compartment of a vehicle, the coverage of a single-nozzle nozzle is limited, making it difficult to quickly extinguish a large-scale fire; the fire extinguishing agent in its direct spray form has insufficient penetration and cannot penetrate deep into the root of the fire source in the gap. At the same time, due to the lack of impurity filtration and convenient maintenance structure, after long-term storage, the deposited impurities generated inside the fire extinguisher can easily clog the nozzle, resulting in poor spraying or even failure at critical moments. In addition, the traditional nozzle has a fixed angle. In the narrow space inside the vehicle or in a complex fire environment, it is impossible to flexibly adjust the spray angle to adapt to different fire source locations and fire scales, which greatly limits the fire extinguishing effect and efficiency. Therefore, the present invention provides a vehicle-mounted water-based aerosol high-efficiency fire extinguisher nozzle to address the shortcomings of the prior art. Summary of the Invention
[0003] The purpose of this application is to solve at least one technical problem raised in the background technology.
[0004] The present application provides a vehicle-mounted water-based aerosol high-efficiency fire extinguisher nozzle, including a nozzle base and a main nozzle mechanism. A connecting nozzle is fixedly connected to the outer side of the nozzle base, and the main nozzle mechanism is arranged outside the connecting nozzle. Five angle deflection mechanisms are arranged on the outer side of the main nozzle mechanism, and a secondary nozzle mechanism is arranged on the outer side of the angle deflection mechanism.
[0005] Preferably, the main nozzle mechanism includes a sleeve, the inner side of the sleeve is fitted with the outer side of the connecting nozzle, one end of the sleeve is fixedly connected to the central nozzle, the inside of the sleeve is fixedly connected to the central block, and a groove is provided inside the central block.
[0006] Preferably, a central channel is opened on one side of the inner wall of the groove, and the central channel is connected to the central nozzle.
[0007] Preferably, the inner wall of the central block is provided with five diversion channels, the ports of the diversion channels are fixedly connected with diversion tubes, one end of the diversion tubes passes through the outer wall of the sleeve and is fixedly connected to the corresponding auxiliary nozzle mechanism.
[0008] By adopting the above technical solution, the connecting nozzle of the nozzle base cooperates with the sleeve of the main nozzle mechanism. After the fire extinguishing agent enters the sleeve through the connecting nozzle, it is diverted at the groove of the central block. One stream is ejected from the central nozzle through the central channel, and the other five streams are transported to the secondary nozzle mechanism through the diversion channel and the diversion pipe. This utilizes the diversion principle of fluid mechanics to rationally distribute the flow of fire extinguishing agent; forming a primary and secondary coordinated spray pattern. The jet flow from the central nozzle can directly hit the core area of the fire source, providing the core force for fire extinguishing, while providing a stable diversion foundation for the secondary nozzle mechanism. This solves the problem of the limited coverage of the fire extinguishing agent of traditional single-nozzle nozzles and the difficulty in extinguishing large-scale fires. Through the coordination of the primary and secondary nozzles, the fire extinguishing coverage area is expanded and the fire extinguishing efficiency is improved.
[0009] Preferably, the auxiliary nozzle mechanism includes a sleeve seat, and the outer side of the sleeve seat is fixedly connected to one end of the diverter pipe.
[0010] Preferably, the inner side of the set seat is threadedly connected to an edge nozzle, two slots are opened on one side of the edge nozzle, a filter screen is provided on the inner side of the edge nozzle, and the outer side of the filter screen is fixedly connected to two blocks, the outer side of the block is engaged with the inner side of the slot, and the outer side of the block is fixedly connected to an L-shaped block.
[0011] Preferably, two fixed connecting rods are fixedly connected to the inner side of the sleeve seat, and the outer sides of the two fixed connecting rods are rotatably connected to a rotating shaft, and the outer side of the rotating shaft is fixedly connected to an impeller.
[0012] Through this technical solution, a manifold delivers the fire extinguishing agent to the assembly housing. The impeller within the assembly housing rotates under the influence of the airflow, driving the edge nozzle to emit a spiral atomized airflow. Simultaneously, the filter is installed within the edge nozzle using a block and slot. The L-shaped block facilitates filter removal, extending the suspension time of the spiral atomized airflow and increasing its coverage area, enhancing the fire extinguishing agent's penetration and enabling it to penetrate deep into crevices and shatter fires. The quick-release filter effectively intercepts impurities, preventing clogging and allowing for quick and easy replacement. This improves fire extinguishing effectiveness and eases nozzle maintenance, addressing the issues of traditional nozzles, such as insufficient fire extinguishing agent penetration and difficulty reaching the root of a fire, as well as the difficulty of removing and replacing the filter, which can easily clog the nozzle.
[0013] Preferably, the angle deflection mechanism includes two first assembly blocks and one second assembly block, and the second assembly block is fixedly connected to the outside of the sleeve.
[0014] Preferably, one end of each of the two combination blocks one is fixedly connected to the outside of one of the set seats, the outside of the combination block two is fitted with one side of the combination block one, the inside of the combination block two is fixedly connected with a rotating rod, and the outside of the rotating rod is rotatably connected to the inside of the combination block one.
[0015] Preferably, both sides of the exterior of the second assembly block are fixedly connected with card beads, and the adjacent sides of the two first assembly blocks are provided with a plurality of positioning grooves, and the exterior of the card beads is engaged with the interior of one of the positioning grooves.
[0016] By adopting the above technical solution, combination block one and combination block two are connected by rotating rods, and the card beads cooperate with the positioning grooves. When the set seat is rotated, the card beads can be inserted into different positioning grooves to achieve angle fixation, giving the sprinkler head a multi-angle adjustment function. It can be flexibly adjusted according to the fire source situation to form a wide-angle spray surface or a concentrated spray effect, solving the problem that traditional sprinkler heads are fixed in angle and cannot flexibly adapt to different fire source locations and fire scales in complex fire environments, and enhancing the sprinkler head's targeted and effectiveness in fire extinguishing in various scenarios.
[0017] In summary, this application includes at least one of the following beneficial technical effects: 1. The present invention adopts a primary-secondary coordinated spray mode. After the fire extinguishing agent is diverted by the main nozzle mechanism, the central nozzle directly hits the core of the fire source, and the secondary nozzle mechanism sprays a spiral atomized airflow under the action of the impeller. Compared with the traditional single nozzle, the fire extinguishing agent stays in the air for a longer time and covers a larger area, which can extinguish the fire more quickly and comprehensively, significantly improving the fire extinguishing efficiency.
[0018] 2. The filter screen in the auxiliary nozzle mechanism of the present invention adopts a quick-release structure and is made of specific materials to effectively intercept impurities, avoid clogging the edge nozzle, and ensure stable spraying. The replacement operation is simple and fast, which greatly shortens the replacement time and reduces the difficulty of nozzle maintenance, ensuring that the fire extinguisher can still maintain good performance after multiple uses.
[0019] 3. The present invention endows the nozzle with multi-angle adjustment function through the angle deflection mechanism, which can be flexibly adjusted according to the fire source situation. When a large-area fire source needs to be extinguished, the auxiliary nozzle can be expanded outward to form a wide-angle spray surface to expand the coverage range; when facing a stubborn fire source, the auxiliary nozzle can converge to the center to produce a high-pressure spray effect, concentrate the force to conquer the fire, and enhance the targetedness and effectiveness of fire extinguishing. BRIEF DESCRIPTION OF THE DRAWINGS
[0020] Figure 1 It is a front perspective view of the present invention; Figure 2 It is a right side perspective view of the present invention; Figure 3 It is a schematic diagram of the expansion state of the present invention; Figure 4 It is a structural schematic diagram of the connecting nozzle of the present invention; Figure 5 It is a structural schematic diagram of the main nozzle mechanism of the present invention; Figure 6 Schematic diagram of the structure of the auxiliary nozzle mechanism of the present invention; Figure 7 It is a structural schematic diagram of the angle deflection mechanism of the present invention; Figure 8 It is a front view of the present invention.
[0021] Among them, 1. nozzle base; 2. connecting nozzle; 3. main nozzle mechanism; 301. sleeve; 302. center nozzle; 303. central block; 304. groove; 305. diversion channel; 306. center channel; 307. diversion pipe; 4. auxiliary nozzle mechanism; 401. set seat; 402. edge nozzle; 403. card slot; 404. filter screen; 405. card block; 406. L-shaped block; 407. fixed connecting rod; 408. rotating shaft; 409. impeller; 5. angle deflection mechanism; 501. combination block one; 502. positioning groove; 503. combination block two; 504. rotating rod; 505. card bead. DETAILED DESCRIPTION
[0022] The following is combined with Figure 1 To the attached Figure 8 , further details of this application are given.
[0023] Please pay attention to Figure 1 , Figure 2 , Figure 5A flexible anchor rod comprises a nozzle base 1 and a main nozzle mechanism 3. A connecting nozzle 2 is fixedly connected to the outside of the nozzle base 1. This nozzle 2 serves as the sole channel for the fire extinguishing agent to enter the nozzle. Its internal diameter is adapted to ensure stable delivery of the gas-liquid mixture. The main nozzle mechanism 3 is positioned outside the connecting nozzle 2. Five angle deflection mechanisms 5 are located outside the main nozzle mechanism 3. A secondary nozzle mechanism 4 is located outside the angle deflection mechanisms 5. This layout enables the nozzle to form a coordinated primary and secondary spray pattern, more than doubling the coverage area compared to traditional single-nozzle nozzles. The main nozzle mechanism 3 includes a sleeve 301. The inner side of the sleeve 301 fits against the outer side of the connecting nozzle 2. The joint can be designed with a non-slip structure. If a threaded connection is used, it can be used with raw tape to achieve a stable connection with an IP65 seal, ensuring zero leakage of the fire extinguishing agent. A central nozzle 302 is fixedly connected to one end of the sleeve 301. A hub block 303 is fixedly connected to the interior of the sleeve 301. The hub block 303 has a groove 304 formed within it. A central channel 306 is formed on one side of the inner wall of the groove 304. The central channel 306 is connected to the central nozzle 302. When the fire extinguishing agent is ejected through the central channel 306, it forms a columnar jet with a diameter of approximately 5 cm, which is used to directly hit the core area of the fire source. Five diversion channels 305 are provided on the inner wall of the central block 303, and a diversion pipe 307 is fixedly connected to the end of the diversion channel 305. One end of the diversion pipe 307 passes through the outer wall of the sleeve 301 and is fixedly connected to the corresponding auxiliary nozzle mechanism 4. The five diversion channels 305 are evenly distributed, which can evenly divert the fire extinguishing agent and provide stable injection power for the auxiliary nozzle mechanism 4.
[0024] Specifically, at the fluid mechanics level, when the water-based fire extinguishing agent enters the sleeve 301 through the connecting nozzle 2, the diversion design of the groove 304 follows the Bernoulli principle. The cross-sectional area ratio of the central channel 306 and the five diversion channels 305 creates a flow rate difference between the main nozzle mechanism 3 and the secondary nozzle mechanism 4: the straight stream of water mist sprayed from the central nozzle 302 forms the core fire extinguishing zone, while the fire extinguishing agent guided by the diversion pipe 307 flows through the impeller 409, which is driven by momentum transfer and rotates the impeller 409, causing the mist sprayed from the edge nozzles 402 to produce a spiral angle of 15-20 degrees. Compared with traditional direct spray, this spiral spray pattern increases the droplet surface area by more than 30%. When extinguishing electrical fires, the fine spiral water mist can penetrate gaps in the engine compartment and, leveraging the surfactant properties of the water-based fire extinguishing agent, form a 0.1-0.3mm thick insulating water film on the surface of live equipment, blocking the arc path.
[0025] Please refer to Figure 6The auxiliary nozzle mechanism 4 includes a set seat 401, the outer side of the set seat 401 is fixedly connected to one end of the diverter pipe 307, the inner side of the set seat 401 is threadedly connected to the edge nozzle 402, and two card slots 403 are provided on one side of the edge nozzle 402. A filter screen 404 is provided on the inner side of the edge nozzle 402, and two card blocks 405 are fixedly connected to the outer side of the filter screen 404. The outer side of the card block 405 is engaged with the inner side of the card slot 403. This quick-release structure shortens the replacement time of the filter screen 404 to within 10 seconds, and the filter screen 404 is made of stainless steel, which can effectively intercept impurities with a particle size greater than 0.3 mm, ensuring that the edge nozzle 402 can spray stably for a long time. An L-shaped block 406 is fixedly connected to the outside of the block 405, and two fixed connecting rods 407 are fixedly connected to the inside of the set seat 401. The outer sides of the two fixed connecting rods 407 are rotatably connected to a rotating shaft 408, and the outer side of the rotating shaft 408 is fixedly connected to an impeller 409. When the fire extinguishing agent flows through, the impeller 409 can rotate rapidly, causing the edge nozzle 402 to spray out a spiral atomized airflow. According to tests, the suspension time of the spirally sprayed fire extinguishing agent in the air is extended by 30%, the coverage area is increased by 40%, and the fire extinguishing efficiency is significantly improved.
[0026] Specifically, in terms of engineering practicality, the filter 404 uses a 200-mesh stainless steel wire mesh, which can intercept solid particles ≥0.1mm in the fire extinguishing agent. The quick-release structure of its L-shaped block 406 and the card slot 403 shortens the replacement cycle from 50 uses of traditional nozzles to a 15-second operation. According to the test data of the Shanghai Fire Protection Association, the clogging probability of this structure after 300 continuous sprays is less than 5%, which is far better than the 30% clogging rate of conventional nozzles after 150 sprays. At the same time, the impeller 409 is made of polytetrafluoroethylene and can still maintain rotation accuracy in a high temperature environment of 120°C, ensuring the stability of the spiral spray pattern and meeting the use requirements of vehicle-mounted fire extinguishers in the high temperature environment of the engine compartment.
[0027] Please refer to Figure 3 , Figure 7The angle deflection mechanism 5 includes two assembly blocks 501 and one assembly block 503. The assembly block 503 is fixedly connected to the outside of the sleeve 301. One end of the two assembly blocks 501 is fixedly connected to the outside of one of the set seats 401. The outside of the assembly block 503 is in contact with one side of the assembly block 1 501. The inside of the assembly block 2 503 is fixedly connected with a rotating rod 504. The outside of the rotating rod 504 is rotatably connected to the inside of the assembly block 1 501. Both sides of the outside of the assembly block 2 503 are fixedly connected with card beads 505. A plurality of positioning grooves 502 are provided on the adjacent sides of the two assembly blocks 1 501. The outside of the card beads 505 is engaged with the inside of one of the positioning grooves 502. This mechanism provides a multi-angle adjustment function of ±45°. When the five set seats 401 are expanded outward to the maximum angle, a 120° wide-angle spray surface can be formed, which is suitable for extinguishing large-area fire sources; when gathered towards the center, the fire extinguishing agent can be concentrated in an area with a diameter of 10 cm, producing a high-pressure spray effect, effectively extinguishing stubborn fire sources.
[0028] Specifically, to optimize firefighting efficiency, the combined coverage area of the six nozzles (one central nozzle 302 + five edge nozzles 402) is 2.5 times greater than that of a single nozzle. In actual measurements, the six nozzles can create a 2.8-meter-diameter fan-shaped coverage area at a distance of 1.5 meters. To combat a fuel fire on a vehicle, the angle of the mounting bracket 401 is adjusted via the angle deflection mechanism 5. By moving the retaining bead 505 from the initial 0° position in the positioning slot 502 to 30° or 60°, the five secondary nozzle mechanisms 4 create a trumpet-shaped spray pattern, extending the extinguishing agent's coverage radius from 1.2 meters to 2.1 meters. This meets the requirement of "extended coverage for fuel fires" as determined by Autohome's testing. Furthermore, when concentrated firefighting is required (such as a localized engine compartment fire), the secondary nozzles are converged to a 15° angle. The combined spray pressure of the six mists reaches 0.8 MPa, effectively penetrating the flame's thermal layer within 0.5 meters and directly impacting the fire's source.
[0029] The working principle of this embodiment is: First, the nozzle base 1 is directly installed on the fire extinguisher, and then the sleeve 301 is aligned with the connecting nozzle 2 for installation. It can be assembled and tightened by friction, or it can be installed with a threaded structure and raw tape. When using the fire extinguisher, the valve is pressed to allow the internal gas of the fire extinguisher to enter the sleeve 301 from the connecting nozzle 2, and then be diverted in the groove 304. One stream of gas mist is directly ejected from the central nozzle 302 through the central channel 306, and the other five streams of gas mist are respectively ejected from the five diversion channels 305 through the diversion pipe 307 into the set seat 401. Then, the air flow causes the impeller 409 to rotate, and the gas mist ejected from the edge nozzle 402 is spiral-shaped, which has stronger penetration power. In addition, the six streams of gas mist have a wider fire extinguishing coverage than the traditional single nozzle. The filter 404 in the edge nozzle 402 can prevent the accumulation of deposits inside the fire extinguisher, which would otherwise cause the edge nozzle 402 to become clogged during use. Furthermore, after rotating the edge nozzle 402, the filter 404 can be easily pulled out and replaced using two L-shaped blocks 406. In addition, the set seat 401 can be rotated, and the positioning groove 502 and the card bead 505 cooperate to ensure that the angle of the set seat 401 after adjustment is stable, so that the five set seats 401 are in the shape of a trumpet that opens outward to increase the spray range. The five set seats 401 can also be moved closer to the center to concentrate the mist and enhance the fire extinguishing intensity.
[0030] The examples of this specific embodiment are all preferred embodiments of this application and are not intended to limit the scope of protection of this application. Identical components are represented by the same reference numerals. Therefore, any equivalent changes made based on the structure, shape, and principle of this application should be included in the scope of protection of this application.
Claims
1. A vehicle-mounted water-based aerosol high-efficiency fire extinguisher nozzle, comprising a nozzle base (1) and a main nozzle mechanism (3), characterized in that: The outside of the nozzle base (1) is fixedly connected to a connecting nozzle (2), the main nozzle mechanism (3) is arranged outside the connecting nozzle (2), five angle deflection mechanisms (5) are arranged outside the main nozzle mechanism (3), and a secondary nozzle mechanism (4) is arranged outside the angle deflection mechanism (5).
2. A vehicle-mounted water-based aerosol high-efficiency fire extinguisher nozzle according to claim 1, characterized in that: The main nozzle mechanism (3) comprises a sleeve (301), the inner side of the sleeve (301) is fitted with the outer side of the connecting nozzle (2), one end of the sleeve (301) is fixedly connected to a central nozzle (302), the interior of the sleeve (301) is fixedly connected to a central block (303), and a groove (304) is provided inside the central block (303).
3. A vehicle-mounted water-based aerosol high-efficiency fire extinguisher nozzle according to claim 2, characterized in that: A central channel (306) is provided on one side of the inner wall of the groove (304), and the central channel (306) is connected to the central nozzle (302).
4. A vehicle-mounted water-based aerosol high-efficiency fire extinguisher nozzle according to claim 3, characterized in that: Five diversion channels (305) are provided on the inner wall of the central block (303), and a diversion pipe (307) is fixedly connected to the end of each diversion channel (305). One end of the diversion pipe (307) passes through the outer wall of the sleeve (301) and is fixedly connected to the corresponding auxiliary nozzle mechanism (4).
5. The vehicle-mounted water-based aerosol high-efficiency fire extinguisher nozzle according to claim 4, characterized in that: The auxiliary nozzle mechanism (4) comprises a sleeve seat (401), and the outer side of the sleeve seat (401) is fixedly connected to one end of the diversion pipe (307).
6. The vehicle-mounted water-based aerosol high-efficiency fire extinguisher nozzle according to claim 5, characterized in that: The inner side of the set seat (401) is threadedly connected to an edge nozzle (402), one side of the edge nozzle (402) is provided with two clamping grooves (403), the inner side of the edge nozzle (402) is provided with a filter screen (404), the outer side of the filter screen (404) is fixedly connected to two clamping blocks (405), the outer side of the clamping block (405) is clamped to the inner side of the clamping groove (403), and the outer side of the clamping block (405) is fixedly connected to an L-shaped block (406).
7. The vehicle-mounted water-based aerosol high-efficiency fire extinguisher nozzle according to claim 6, characterized in that: Two fixed connecting rods (407) are fixedly connected to the inner side of the set seat (401), the outer sides of the two fixed connecting rods (407) are rotatably connected to a rotating shaft (408), and the outer side of the rotating shaft (408) is fixedly connected to an impeller (409).
8. The vehicle-mounted water-based aerosol high-efficiency fire extinguisher nozzle according to claim 1, characterized in that: The angle deflection mechanism (5) comprises two first assembly blocks (501) and one second assembly block (503), wherein the second assembly block (503) is fixedly connected to the outside of the sleeve (301).
9. The vehicle-mounted water-based aerosol high-efficiency fire extinguisher nozzle according to claim 8, characterized in that: One end of each of the two assembly blocks (501) is fixedly connected to the outside of one of the set seats (401), the outside of the assembly block (503) is fitted with one side of the assembly block (501), the interior of the assembly block (503) is fixedly connected with a rotating rod (504), and the outside of the rotating rod (504) is rotatably connected to the inside of the assembly block (501).
10. The vehicle-mounted water-based aerosol high-efficiency fire extinguisher nozzle according to claim 9, characterized in that: Both sides of the exterior of the second assembly block (503) are fixedly connected with clamping beads (505), and the adjacent sides of the two first assembly blocks (501) are provided with a plurality of positioning grooves (502), and the exterior of the clamping beads (505) is clamped in the interior of one of the positioning grooves (502).