Fire-fighting lance

Abstract

The utility model provides a fire-fighting lance which comprises a lance body, and an annular flange connecting disc is arranged on the outer side wall of a cavity of the lance body. The key innovation lies in that the transparent shield is additionally arranged, the transparent shield is provided with a through hole allowing the gun body to penetrate, the transparent shield can be detachably connected with the flange connecting disc, the connecting modes are diversified, such as combined connection through a connecting ring, a connecting rod and a fastening nut or threaded connection, and the shield abuts against the flange connecting disc after being screwed. The shield is of a cover-shaped structure, is opened towards the rear side and the lower side, can protect firemen on the front side, the left side, the right side and the upper side, prevents splashing and falling objects, and does not affect the firemen to operate the water gun to observe the fire. The fire-fighting lance has fire extinguishing and protecting functions, the shield can be flexibly assembled according to scenes, and the safety and efficiency of fire extinguishing operation of firefighters are greatly improved.

Description

Technical Field

[0001] This utility model relates to the field of fire-fighting equipment technology, specifically to a fire hose. Background Technology

[0002] Fire hoses, as indispensable firefighting equipment, play a crucial role in fire suppression. With societal development and increasingly complex building structures, the types and scenarios of fires are becoming more diverse, placing higher demands on the performance and functionality of fire hoses.

[0003] Currently, most fire hoses on the market primarily function as basic water sprayers for fire extinguishing. Based on the water flow pattern, they are generally categorized as straight-stream hoses, spray hoses, straight-stream spray hoses, and multi-purpose hoses. Straight-stream hoses spray a solid column of water with strong impact and penetrating power, commonly used for extinguishing fires involving ordinary solid materials. Spray hoses spray a mist of water, effectively extinguishing indoor fires, fires involving electrical equipment, combustible dust, and some oil fires. Straight-stream spray hoses combine the characteristics of both straight-stream and spray hoses. Multi-purpose hoses allow for adjustment of flow rate and jet pattern according to fire extinguishing needs.

[0004] However, in actual fire scenes, the environment is often extremely complex and dangerous. Not only are there raging flames and high temperatures, but also various flying and falling objects, such as burning building components and explosive debris. These objects can cause serious injury to firefighters on the front lines, threatening their lives. However, existing fire hoses have a relatively simple function, focusing solely on spraying water to extinguish fires, and cannot provide firefighters with protection against flying and falling objects. This forces firefighters to concentrate on dealing with the fire while remaining constantly vigilant about potential dangers from the surrounding environment, greatly increasing the difficulty and danger of firefighting. For example, in some large building fires or industrial fires, firefighters using traditional fire hoses are often attacked by falling building materials or equipment parts, resulting in injury or even death.

[0005] In conclusion, existing fire hoses have significant functional shortcomings and cannot meet the comprehensive needs of firefighting equipment in complex and dangerous fire scenes. To better protect the safety of firefighters and improve firefighting efficiency, there is an urgent need for a new type of fire hose that can provide protection against splashing and falling objects while spraying water to extinguish fires. Utility Model Content

[0006] In view of the problems pointed out in the background art, this utility model proposes a fire hose to solve the above-mentioned technical problems.

[0007] The technical solution of this utility model is implemented as follows:

[0008] A fire hose reel includes a hose body, wherein an annular flange connection plate is provided on the outer side wall of the hose body.

[0009] The present invention is further configured to include a shield, which has a through hole through which the gun body can pass, and the shield and the flange connecting plate form a detachable connection.

[0010] The present invention is further configured such that the flange connecting plate is provided with a connecting hole, the shield is provided with a connecting rod corresponding to the connecting hole, and a fastening nut is threadedly connected to the connecting rod.

[0011] The present invention is further configured such that the shield is transparent.

[0012] The present invention is further configured such that it also includes an annular connecting ring, the connecting rod is disposed on the connecting ring, the shield is fixedly connected to the connecting ring, and the connecting ring is coaxially disposed with the through hole.

[0013] The present invention is further provided that reinforcing ribs extend outward from the connecting ring.

[0014] The present invention is further configured such that the shield is a cover-shaped structure with openings on the rear and lower sides.

[0015] The present invention is further configured such that the connecting ring is made of a metal material.

[0016] The present invention is further configured such that the shield is threadedly connected to the gun body.

[0017] By adopting the above technical solution, the beneficial effects of this utility model are as follows:

[0018] First, it represents a significant breakthrough in protective performance. The added transparent shield provides firefighters with strong protection against flying and falling objects. Its dome-shaped structure, combined with openings on the rear and lower sides, comprehensively protects firefighters from the front, left, right, and top, blocking dangerous objects from all directions such as flames, high-temperature debris, and burning debris, while also ensuring leg movement and allowing firefighters to move freely, greatly reducing the risk of injury or death during firefighting.

[0019] Secondly, the ingenious connection structure design offers multiple advantages. Whether it's the detachable connection between the flange connecting plate and the shield via connecting holes, connecting rods, and fastening nuts 7, or the threaded connection between the shield and the gun body, both are simple and convenient to operate. This allows firefighters to quickly assemble or disassemble the shield as needed in different fire scenarios, enabling rapid arming during emergency rescues and reducing the burden after the fire subsides, thus improving firefighting efficiency. Furthermore, the robust connection ensures that the shield will not easily shift or detach under impact, providing reliable protection at all times.

[0020] Furthermore, the customizable shape design of the shield can meet the needs of diverse and complex firefighting scenarios. A long and narrow shape is used in narrow spaces, while a wide and curved shape is used in open areas, making the water gun more adaptable and allowing it to move flexibly through various fire scenes.

[0021] Finally, the transparent shield does not obstruct the firefighters' vision, allowing them to accurately control the water guns to aim at the fire source. This ensures both effective firefighting and improved operational safety, comprehensively assisting firefighters in completing firefighting missions efficiently and safely, thus laying a solid foundation for protecting people's lives and property. Attached Figure Description

[0022] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art 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.

[0023] Figure 1 This is a schematic diagram of the structure of the gun body of this utility model.

[0024] Figure 2 This is a schematic diagram of the structure of the gun body and shield of this utility model.

[0025] Figure 3 This is an exploded view of the gun body and shield of this utility model.

[0026] Figure 4 This is a side view of the gun body and shield of this utility model.

[0027] Figure 5 This is a structural diagram illustrating the connecting ring and reinforcing ribs of this utility model.

[0028] Figure 6 This is a schematic diagram of the structure of the shield-shaped protective cover of this utility model.

[0029] The following are the labels in the attached diagram: 1. Gun body, 2. Flange connecting plate, 3. Shield, 4. Through hole, 5. Connecting hole, 6. Connecting rod, 7. Fastening nut, 8. Connecting ring, 9. Reinforcing rib. Detailed Implementation

[0030] 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.

[0031] For reference as follows Figure 1-6 The present invention will be described as follows:

[0032] Example: A fire hose reel includes a hose body 1. The hose body 1 is the core component of the entire device for achieving the function of spraying water for fire extinguishing. It undertakes key tasks such as delivering water flow, adjusting the water flow pattern, and controlling the spray direction. Its internal structure is sophisticated, including components such as water flow channels and control valves, to ensure a stable and efficient water flow output during fire extinguishing operations, meeting the needs of extinguishing different fire intensities.

[0033] An annular flange connection plate 2 is provided on the outer wall of the gun body 1. As an important connection structure, the flange connection plate 2 has several advantages. On the one hand, it provides a stable and standardized interface for the installation of other components. Its annular design can evenly distribute the stress on the connection part, ensuring the reliability of the connection. On the other hand, the flange connection, a common and mature connection method, makes the installation and disassembly of the supporting components simpler and faster, which is conducive to the rapid maintenance, adjustment or replacement of parts of the equipment before and after emergency fire fighting.

[0034] It also includes Shield 3, which is transparent and made of transparent material. This design has a clear and practical purpose: the transparency ensures that firefighters' vision is not obstructed when using water hoses to extinguish fires. They can clearly observe the development of the fire, the landing point of the water jets, and the surrounding environment, thereby accurately controlling the water hoses and effectively improving the accuracy and efficiency of firefighting operations.

[0035] Meanwhile, the shield 3 has a through hole 4 through which the gun body 1 can pass. This structural design ensures that the shield 3 and the gun body 1 can be tightly integrated, forming an organic whole, and working together in terms of protection and fire extinguishing functions.

[0036] The shield 3 is detachably connected to the flange connection plate 2. This design gives the fire hose a great deal of flexibility in use. In some conventional fire scenarios, if the environment is relatively safe and the risk of splashing or falling objects is low, firefighters can choose not to install the shield 3. In this case, the hose is easier and more flexible to operate, reducing unnecessary weight and facilitating rapid firefighting operations. However, in high-risk fire scenarios such as building collapses or chemical plant explosions, where a large number of objects may splash or fall at any time, endangering the lives of firefighters, the shield 3 can be quickly installed onto the hose body 1 via the flange connection plate 2, immediately creating an effective protective barrier for firefighters.

[0037] The Shield 3 features a highly flexible shape design, adaptable to different fire scenarios, fire hose usage habits, and various special operating environments. For example, when fighting fires in narrow passages, the Shield 3 can be designed with a relatively long and narrow shape, which can meet the protection requirements without hindering personnel movement due to excessive size; in open industrial plant fires, the Shield 3 can appropriately increase the protection area, adopting a wider, slightly curved shape to resist splashes from all directions.

[0038] In summary, this new type of fire hose, through its ingenious integration of components such as the hose body 1, flange connection plate 2, shield 3, and through hole 4, provides firefighters with more reliable safety and more flexible and efficient firefighting operations in complex and dangerous firefighting missions through its innovative structural design.

[0039] The flange connecting plate 2 plays a crucial role as the connection hub, and the connection holes 5 on it are an important detail that enables this connection function to be accurately realized. The connection holes 5 are usually evenly distributed on the flange connecting plate 2, and their diameter, number, and arrangement are carefully designed based on factors such as the connection requirements of the shield 3, the stress distribution it bears, and the overall structural stability. These connection holes 5 provide a positioning reference for the assembly of subsequent components, allowing the shield 3 to accurately align with the flange connecting plate 2, ensuring the concentricity and perpendicularity of the combined components, thereby guaranteeing the stability of the overall water gun structure. On the other hand, as load-bearing points, the connection holes 5 distribute the external force generated by the shield 3 under impact to the gun body 1 through a reasonable path, effectively avoiding local stress concentration that could damage the structure.

[0040] Correspondingly, the shield 3 is equipped with a connecting rod 6. The position and size of the connecting rod 6 perfectly match the connecting hole 5 on the flange connecting plate 2, which is a key matching element for achieving a reliable connection between the two. During installation, the connecting rod 6 can be accurately inserted into the connecting hole 5, playing a role in initial positioning and guidance, guiding the shield 3 to fit against the flange connecting plate 2 in the correct direction, greatly improving the convenience and accuracy of installation. Moreover, as the main part of the connection structure, the connecting rod 6 itself has sufficient strength and rigidity to withstand the impact forces that the shield 3 may suffer from all directions at the fire scene, ensuring that the connection part will not easily deform or break, providing continuous and stable protection for firefighters.

[0041] Most importantly, a fastening nut 7 is threaded onto the connecting rod 6. When the connecting rod 6 is inserted into the connecting hole 5, the fastening nut 7 plays a crucial role in securing the connection. By rotating the fastening nut 7, it gradually tightens along the threads of the connecting rod 6, applying uniform and stable pressure to the connection between the shield 3 and the flange connecting plate 2, thus firmly fixing them together. This threaded connection method is not only secure but also facilitates disassembly and adjustment. During breaks in emergency firefighting operations, if slight displacement of the shield 3 is detected or a different shield size needs to be replaced, simply loosening the fastening nut 7 can easily complete the operation without the need for complex tools, greatly improving on-site adaptability and emergency response capabilities. Furthermore, the thread design of the fastening nut 7 is optimized, possessing excellent self-locking characteristics. Even under harsh conditions such as frequent vibrations of the water gun, impacts, and high temperatures, it effectively prevents loosening, ensuring that the entire protective structure remains reliably connected, safeguarding the lives of firefighters.

[0042] It also includes a ring-shaped connecting ring 8, which is made of metal material. Metal material has excellent mechanical properties, such as high strength, good toughness and fatigue resistance.

[0043] The connecting rod 6 is mounted on the connecting ring 8, and the two are tightly integrated. This integrated design makes the transmission of force more direct and efficient. When the shield 3 is impacted by flying or falling objects, the impact force can be quickly transmitted to the connecting ring 8 through the connecting rod 6. With the help of the stable structure of the connecting ring 8 itself, the force is evenly distributed over a larger area, avoiding excessive local stress that could damage the components.

[0044] The shield 3 is fixedly connected to the connecting ring 8, which is coaxially arranged with the through hole 4. Reinforcing ribs 9 extend outwards from the connecting ring 8. These reinforcing ribs 9 are carefully arranged according to the stress distribution characteristics of the connecting ring 8. In areas where the connecting ring 8 bears significant impact force, the reinforcing ribs 9 can significantly enhance the rigidity of the structure and improve the deformation resistance of the connecting ring 8. For example, when facing the impact of heavy building components that may fall during a large building fire, the reinforcing ribs 9 can effectively prevent the shield 3 from denting, twisting, or other damage, thus ensuring that the protective function of the shield 3 is not affected.

[0045] The connecting ring 8, connecting rod 6, and reinforcing rib 9 are integrated into one unit.

[0046] Shield 3 has a dome-shaped structure with openings on the rear and bottom sides. When firefighters are inside Shield 3, its all-around protective function from the front, left, right, and top sides is fully realized.

[0047] Frontal protection is crucial because it faces the direct source of the fire and is the area most vulnerable to high-temperature flames, projectiles, and flying sparks. The front of Shield 3 acts as a solid barrier, effectively blocking direct fire and protecting firefighters' faces, chests, and other vital body parts from burns and impacts. Whether it's a raging fireball or high-temperature debris scattered by exploding burning materials, the front shield, with its reliable materials and well-designed curvature, effectively keeps the danger at bay.

[0048] Left and right side protection is equally essential. At a fire scene, the surrounding environment is complex and constantly changing; burning beams and collapsing wall debris could fly from the sides at any moment. The Shield 3's extension in these two directions acts like providing firefighters with a pair of sturdy "wings," providing robust protection for their lateral safety. When firefighters are navigating narrow fire lanes or fighting fires near unstable building structures, potential threats from both sides are ever-present. The Shield's left and right side protection allows them to focus wholeheartedly on the firefighting mission without constantly being alert to sudden dangers from the sides.

[0049] The upper protection further safeguards the head safety of firefighters. The airspace above a fire scene is often filled with various hazards, such as falling roof tiles and burning debris carried by hot air currents. The upper part of Shield 3 bulges upwards, forming a dome-shaped protective space, like a "safety helmet" for firefighters, effectively preventing falling objects from hitting their heads and avoiding fatal injuries.

[0050] Another implementation structure for disassembling the shield 3: the shield 3 is threadedly connected to the gun body 1, the gun body 1 is provided with external threads for connecting to the shield 3, and the inner sidewall of the through hole 4 is provided with internal threads. After the shield 3 is tightened, it abuts against the flange connecting plate.

[0051] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. 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. A fire hose reel, comprising a hose body (1), characterized in that: The gun body has an annular flange connection plate (2) on its outer side wall; it also includes a shield (3), which has a through hole (4) through which the gun body (1) can pass, and the shield (3) and the flange connection plate (2) are detachably connected; the flange connection plate (2) has a connection hole (5), and the shield (3) has a connecting rod (6) corresponding to the connection hole (5), and a fastening nut (7) is threaded onto the connecting rod (6); it also includes an annular connecting ring (8), the connecting rod (6) is set on the connecting ring (8), the shield (3) is fixedly connected to the connecting ring (8), and the connecting ring (8) and the through hole (4) are coaxially arranged.

2. A fire hose reel according to claim 1, characterized in that: The shield (3) is set to be transparent.

3. A fire hose reel according to claim 1, characterized in that: Reinforcing ribs (9) extend outward from the connecting ring (8).

4. A fire hose reel according to claim 1, characterized in that: The shield (3) is a cover-shaped structure with openings on the rear and lower sides.

5. A fire hose reel according to claim 1, characterized in that: The connecting ring (8) is made of metal.

6. A fire hose reel according to claim 1, characterized in that: The shield (3) is threadedly connected to the gun body (1).

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