Fire monitor nozzle with variable atomization angle

Abstract

The utility model relates to a fire monitor nozzle with a variable atomization angle, and aims to solve the problems of single spraying mode and poor adaptability in the prior art. The gun nozzle comprises an inner spray pipe and an outer spray pipe, the outer spray pipe is slidably arranged on the outer side of the inner spray pipe, and the inner spray pipe comprises a water inlet and a trumpet-shaped water outlet; a plurality of angle areas are arranged on the inner wall of the outer spraying pipe, and dynamic switching of the spraying angle from direct-flow columnar spraying to multi-angle atomization spraying is achieved through sliding adjustment. The device further comprises a driving mechanism composed of a mist column motor, a lead screw and a motor connecting plate, sliding of the outer spraying pipe is controlled through accurate transmission, and rapid adjustment of the spraying angle is achieved. The water flow core is arranged at the water outlet and used for rectifying and dispersing water flow, and the water flow stability and the spraying effect are ensured. The fire extinguishing device is suitable for flexible fire extinguishing requirements of near, medium and long-distance fire disasters, is diversified in spraying mode, accurate in adjustment and high in fire extinguishing efficiency, and is particularly suitable for high-efficiency extinguishing of complex fire scenes.

Description

Technical Field

[0001] This utility model relates to the field of fire-fighting equipment technology, specifically to a fire monitor nozzle with a variable atomization angle. Background Technology

[0002] The rapid development of fire safety technology has driven continuous improvement in the performance of fire-fighting equipment. Among these, fire monitors, as core fire-fighting equipment, play a crucial role in fire control and suppression. Traditional fire monitors mainly employ two modes: jet spray and atomized spray. Jet spray achieves long-distance coverage of distant targets through concentrated water flow, while atomized spray utilizes a wider spray angle to provide comprehensive coverage of close-range targets. These spray modes, with their simple structure and low manufacturing cost, have largely met the needs of early-stage fire suppression. However, with the increasing complexity of modern building structures and the diversification of fire scene conditions, a single jet spray mode is clearly insufficient to fully adapt to the changing fire-fighting requirements. For example, in multi-story buildings or complex industrial settings, there is a need for both long-distance coverage of the fire source and flexible and efficient protection of targets at medium and close range, which places higher demands on the performance of fire monitors. Therefore, the industry urgently needs a new type of fire monitor that can flexibly switch between different spray modes and has multi-angle adjustment capabilities to meet the actual needs of modern fire-fighting operations.

[0003] Most fire monitors currently on the market have significant limitations in adjusting their spray patterns. Common devices typically only switch between two extreme states: jet spray and atomized spray, lacking the ability to finely adjust the spray angle. This design flaw makes it difficult to optimize spray performance according to the specific needs of a fire scene. For example, when the fire source is located in a medium-distance area, jet spray may result in spraying too far, failing to cover the target area, while atomized spray is ineffective due to insufficient spray distance. Furthermore, these devices usually rely on mechanical devices to switch modes, which is complex to operate and has a long adjustment response time, making it difficult to meet the needs of rapid deployment in sudden fires. Compared to existing technologies, designing a fire monitor nozzle with an adjustable atomization angle would not only allow for flexible adjustment of the water jet angle but also enable precise adjustment of the water flow coverage area according to firefighting needs without interrupting operation, thereby significantly improving the efficiency and effectiveness of firefighting operations. Therefore, developing a fire monitor nozzle with a variable atomization angle is of significant practical importance for improving the firefighting equipment technology system and enhancing fire suppression capabilities. Utility Model Content

[0004] The purpose of this section is to outline some aspects of embodiments of the present invention and to briefly describe some preferred embodiments. Simplifications or omissions may be made in this section, as well as in the abstract and title of this application, to avoid obscuring the purpose of these documents; however, such simplifications or omissions should not be construed as limiting the scope of the present invention.

[0005] In view of the technical problems existing in the prior art, the present invention provides a fire monitor nozzle with a variable atomization angle, including an outer nozzle and an inner nozzle. The outer nozzle is slidably disposed outside the inner nozzle. The inner nozzle includes an inlet and an outlet, and the outlet is funnel-shaped.

[0006] As a preferred technical solution for a fire monitor nozzle with a variable atomization angle, it also includes a drive mechanism, which is disposed on one side of the inner nozzle.

[0007] As a preferred technical solution for a fire monitor nozzle with a variable atomization angle, the drive mechanism includes a mist column motor, a lead screw, and a motor connector. The mist column motor is mounted on one side of the inner nozzle via the motor connector, and the output shaft of the mist column motor is connected to the outer nozzle via the lead screw.

[0008] As a preferred technical solution for a fire monitor nozzle with a variable atomization angle, the external nozzle is provided with a mounting block, the mounting block is provided with a threaded connection hole, and the lead screw is threaded into the threaded connection hole.

[0009] As a preferred technical solution for a fire monitor nozzle with a variable atomization angle, a water flow core is provided at the outlet.

[0010] This invention possesses significant practical value and technical advantages. Through the relative sliding adjustment of the inner and outer nozzles, dynamic adjustment from direct-flow columnar spray to multi-angle atomized spray is achieved, with spray angles ranging from 0° to the maximum atomization angle, flexibly adapting to the fire extinguishing needs of different fire targets at near, medium, and long distances. The drive mechanism employs a precise transmission between a mist column motor and a lead screw, ensuring rapid and accurate spray angle adjustment, enabling immediate response to the complex and ever-changing requirements of a fire scene. The water flow core's rectification function significantly optimizes the water flow's streamline and dispersion performance, concentrating energy in columnar mode, suitable for extinguishing fires at long distances; while in atomized mode, the water flow is evenly dispersed into fine droplets, forming a large-scale cooling and fire suppression barrier, effectively improving fire extinguishing efficiency. Compared to traditional fire monitors that only support fixed spray modes, this invention solves the problems of limited fire extinguishing coverage and insufficient operational flexibility through dynamic multi-mode switching, making it particularly suitable for complex fire scenarios such as high-rise buildings and industrial parks, significantly improving the efficiency and effectiveness of firefighting operations. Attached Figure Description

[0011] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort. Among them:

[0012] Figure 1 This is a schematic diagram of the nozzle structure when the relative distance between the outer nozzle and the inner nozzle reaches 78mm.

[0013] Figure 2 This is a schematic diagram of the nozzle structure when the outer nozzle retracts to a relative distance of 48mm from the inner nozzle.

[0014] Figure 3 This is a schematic diagram of the nozzle structure when the outer nozzle retracts to a relative distance of 24mm from the inner nozzle.

[0015] Figure 4 This is a schematic diagram of the nozzle structure when the outer nozzle retracts to a distance of 0mm from the inner nozzle.

[0016] Attached reference numerals: 10. External nozzle; 11. Internal nozzle; 12. Mist column motor; 13. Lead screw; 14. Motor connector; 15. Mounting block; 16. Water flow core; Detailed Implementation

[0017] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings.

[0018] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Those skilled in the art can make similar extensions without departing from the spirit of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0019] Secondly, the term "an embodiment" or "embodiment" as used herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation of the present invention. The phrase "in one embodiment" appearing in different places in this specification does not necessarily refer to the same embodiment, nor is it a single or selective embodiment that excludes other embodiments.

[0020] Secondly, this utility model is described in detail with reference to the schematic diagrams. When describing the embodiments of this utility model, for ease of explanation, the cross-sectional views illustrating the device structure may be partially enlarged, not adhering to the usual scale. Furthermore, the schematic diagrams are merely examples and should not limit the scope of protection of this utility model. In addition, actual manufacturing should include the three-dimensional spatial dimensions of length, width, and depth.

[0021] Please refer to Figure 1 As shown, the fire monitor nozzle of this invention achieves dynamic adjustment of the spray angle through the relative sliding of the inner nozzle 11 and the outer nozzle 10, providing a flexible and adaptable spray mode for different fire extinguishing scenarios. The inlet of the inner nozzle 11 guides the water flow into the device, while the trumpet-shaped outlet can initially diffuse and concentrate the water flow, laying the foundation for subsequent adjustment of the spray mode. The outer nozzle 10 is fitted on the outside of the inner nozzle 11 and can slide along the outside of the inner nozzle 11. During the sliding process, it forms a gradual change from a straight columnar spray to a wide-area atomized spray, meeting different fire extinguishing needs from long-distance coverage to short-distance diffusion.

[0022] Traditional fire monitors typically suffer from a limited range of spray modes, supporting only columnar spray and maximum angle atomization spray, making them ill-suited for complex fire scene requirements. This invention, through the ingenious design of the inner and outer nozzles 10, enables precise and diverse adjustment of the spray angle. Specifically, by sliding the outer nozzle 10, the water spray angle can be dynamically adjusted between 0° and the maximum spray angle. This flexibility allows the device to be efficiently adapted to various fire scenarios, including high-rise buildings, industrial parks, and complex confined spaces, significantly improving fire extinguishing efficiency.

[0023] The sliding range of the external nozzle 10 of this utility model is divided into 8 specific positions, each position corresponding to a different spray angle and application scenario:

[0024] Position 8 ( Figure 1 When the relative distance between the outer nozzle 10 and the inner nozzle 11 reaches 78mm, the water flow contacts the straight part of the inner wall of the outer nozzle 10, with a contact angle of 0°, forming a straight columnar spray. This mode is suitable for concentrated fire extinguishing over long distances, as the water flow energy is concentrated and the spray distance is the longest, which can quickly extinguish distant fire sources while reducing the energy loss of the water flow.

[0025] Position 7 ( Figure 2 When the outer nozzle 10 retracts to a relative distance of 48mm from the inner nozzle 11, the contact angle between the water flow and the inner wall of the outer nozzle 10 becomes 2°. At this time, the spray angle slightly increases, and the coverage area of ​​the water flow increases but still maintains a high degree of concentration, which is suitable for the coverage needs of medium and long-range targets. This mode performs particularly well when the fire source is relatively dispersed.

[0026] Position 6 ( Figure 3The external nozzle is further retracted by 10 mm, the spacing is reduced to 24 mm, and the water flow contact angle is increased to 4°. In this mode, the spray coverage area is significantly expanded, and the water flow energy is moderately dispersed, making it suitable for fire extinguishing needs of medium-range targets, especially when the fire area is wide and multiple target areas need to be covered.

[0027] Position 1 ( Figure 4 Positions 2 through 5: As the outer nozzle 10 gradually contracts to its minimum distance (position 1, flush with the inner nozzle 11), the water flow no longer contacts the outer nozzle 10, but is directly sprayed from the funnel-shaped outlet of the inner nozzle 11, forming atomized spray at the maximum spray angle. This mode is suitable for close-range coverage of target areas and can quickly form a water mist barrier to control the spread of fire. The spray angles at positions 2 through 5 are 12°, 10°, 8°, and 6° respectively, gradually adapting to various fire extinguishing needs from close to medium distance.

[0028] By dynamically changing the spray angle through the sliding of the external nozzle 10, this invention achieves flexible coverage of fire targets at different distances, meeting diverse fire extinguishing needs.

[0029] Achieving sliding adjustment of the outer nozzle 10 relies on a highly efficient drive mechanism. This invention's drive mechanism comprises a mist column motor 12, a lead screw, and a motor connecting plate, exhibiting a sophisticated design and powerful functionality. The mist column motor 12 is fixed to one side of the inner nozzle 11 via the motor connecting plate, and its output shaft is connected to the lead screw via a pin. The lead screw, in turn, engages with the outer nozzle 10 via a threaded connection. When the motor operates, the lead screw rotates under the motor's drive, converting the rotational motion into linear sliding of the outer nozzle 10 through threaded transmission. This design not only simplifies the structure but also ensures the efficiency and precision of the adjustment process.

[0030] This invention incorporates a water flow core 16 at the outlet of the inner nozzle 11 for rectifying and dispersing the water flow. The water flow core 16 optimizes the water flow's streamline, reduces turbulence, and significantly improves the stability and uniformity of the jet stream. In columnar spray mode, the water flow energy is concentrated, resulting in a long range, suitable for extinguishing concentrated fire sources at a distance. In atomized spray mode, the water flow is dispersed into uniform small droplets, forming an effective fire suppression barrier covering the target area. Whether in direct jet or atomized spray mode, the design of the water flow core 16 ensures the stability of the jet stream pattern, reduces energy loss, and improves fire extinguishing effectiveness.

[0031] Through innovative nozzle adjustment mechanisms, precise drive control, and optimized rectification design, this invention significantly improves the fire-extinguishing performance and adaptability of fire monitors. Compared with traditional fire monitors, this invention not only solves the problem of a single spray mode but also achieves multi-functional coverage through dynamic adjustment, providing an efficient and reliable solution for modern fire-fighting equipment. This flexibility and adaptability are particularly important in complex fire-fighting scenarios, significantly improving the efficiency and effectiveness of fire-fighting operations.

[0032] The embodiments are only used to illustrate the technical solutions of this utility model and are not intended to limit it. Although this utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of this utility model without departing from the spirit and scope of the technical solutions of this utility model, and all such modifications or substitutions should be covered within the scope of the claims of this utility model.

Claims

1. A variable fog angle nozzle for a fire monitor, comprising: The outer nozzle (10) is slidably arranged outside the inner nozzle (11), the inner nozzle (11) comprises a water inlet and a water outlet, and the water outlet is in a trumpet shape.

2. A variable fog angle nozzle for a fire monitor as defined in claim 1, wherein, A driving mechanism is further arranged on one side of the inner nozzle (11).

3. A variable fog angle nozzle for a fire monitor as defined in claim 2 wherein, The driving mechanism comprises a fog column motor (12), a lead screw (13) and a motor connecting seat (14), the fog column motor (12) is installed on one side of the inner nozzle (11) through the motor connecting seat (14), and the output shaft of the fog column motor (12) is connected to the outer nozzle (10) through the lead screw (13).

4. A variable fog angle nozzle for a fire-fighting cannon as defined in claim 3, wherein An installation block (15) is arranged on the outer nozzle (10), a lead screw hole is formed in the installation block (15), and the lead screw (13) is screwed into the lead screw hole.

5. A variable fog angle nozzle for a fire-fighting cannon as defined in claim 1, wherein The water outlet is provided with a water flow core (16).

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