Compression-resistant and leakage-proof fire hose

Abstract

The utility model discloses a compression-resistant leakproof fire hose which comprises a first hose body, a fixing device is fixedly connected to an inner cavity of the first hose body, a first connecting pipe is fixedly connected to one end of the first hose body, a screw is in threaded connection with an inner cavity of the first connecting pipe, the screw is fixedly connected with the fixing device, and a nut is in threaded connection with the outer side of the screw. The nut is rotationally arranged at one end of the first connecting pipe, one end of the first connecting pipe is fixedly connected with a first sealing ring, one end of the first sealing ring is fixedly connected with an adjusting hose, and the adjusting hose is connected with the first connecting pipe through the first sealing ring. And the sealing performance between the first connecting pipe and the adjusting hose is improved through the first sealing ring, water flow is prevented from leaking from the connector, finally, the water hose has the buffering capacity when bent or moved through the adjusting hose, and the pipeline adjusting requirement of the complex fire fighting scene is met.

Description

Technical Field

[0001] This utility model relates to the field of fire hose technology, specifically a pressure-resistant and leak-proof fire hose. Background Technology

[0002] Fire protection systems include outdoor fire hydrant systems, indoor fire hydrant systems, and fire extinguisher systems. Some systems may also include automatic sprinkler systems, water cannon systems, gas extinguishing systems, fire detection systems, and water mist systems. A fire hydrant kit is generally composed of a fire box, fire hose, water gun, couplings, plugs, and clamps. However, during long-term use, fire hoses may leak.

[0003] For example, CN218152913U discloses a pressure-resistant and leak-proof fire hose. Its technical solution includes: a mounting frame, a connector on the inner side of the mounting frame, second connecting plates installed on all four sides of the inner wall of the mounting frame, a limiting post installed on one outer wall of the second connecting plate, the other end of the limiting post passing through a damping rubber sleeve and connecting to the limiting plate, the damping rubber sleeve being disposed on the wall of a through hole, the through hole being opened on the outer wall of a first connecting plate, and the first connecting plate being installed on the outer wall of the connector. This invention reduces the impact force generated when water is sprayed at the connection between the hose body and the nozzle, improves the stability and comfort of the user holding the nozzle, and also avoids the hose body becoming brittle due to freezing in winter, making it easily damaged by external forces.

[0004] However, there are shortcomings: during long-term use, the water hose body is subjected to high-pressure water flow impact, high temperature environment or chemical corrosion, and the molecular chain of its base material gradually breaks down, resulting in a decline in physical properties. Hardening, embrittlement or cracking will occur, forming micro-pores or cracks that are invisible to the naked eye, which in turn leads to liquid penetration. Utility Model Content

[0005] The purpose of this invention is to provide a pressure-resistant and leak-proof fire hose to solve the problem mentioned in the background art that fire hoses may leak during long-term use.

[0006] To solve the above-mentioned technical problems, this utility model is achieved through the following technical solution:

[0007] This utility model relates to a pressure-resistant and leak-proof fire hose, comprising a hose, a fixing device fixedly connected to the inner cavity of the hose, a connecting pipe fixedly connected to one end of the hose, a screw threadedly connected to the inner cavity of the connecting pipe, the screw being fixedly connected to the fixing device, a nut threadedly connected to the outer side of the screw, the nut being rotatably disposed at one end of the connecting pipe, a sealing ring fixedly connected to one end of the connecting pipe, and an adjusting hose fixedly connected to one end of the sealing ring, the adjusting hose being connected to the connecting pipe through the sealing ring.

[0008] Furthermore, a second sealing ring is fixedly connected to one end of the regulating hose, a second connecting pipe is fixedly connected to one end of the second sealing ring, a fixed post is fixedly connected to one end of the second connecting pipe, and a second water hose is fixedly connected to one end of the fixed post.

[0009] Furthermore, a leak-proof layer is fixedly connected to the outer side of the second water hose. The leak-proof layer is made of nitrile rubber and polyester fiber composite. The nitrile rubber and polyester fiber are bonded together by a hot pressing process. The thickness of the leak-proof layer is 0.3-0.5 mm, and its inner wall is coated with a nano-level sealing coating.

[0010] Furthermore, a buffer layer is fixedly connected to the outside of the leak-proof layer, and the leak-proof layer and the buffer layer are bonded and fixed together by a hot melt adhesive layer with a thickness of 0.05-0.1 mm. The surface of the buffer layer is coated with a waterproof and breathable membrane, which is a polytetrafluoroethylene microporous membrane with a thickness of 0.03-0.05 mm.

[0011] Furthermore, a pressure-resistant layer is fixedly connected to the outside of the buffer layer. The pressure-resistant layer is made of high-strength carbon fiber and epoxy resin composite, with carbon fiber accounting for 60%-70% of the volume. The thickness of the pressure-resistant layer is 0.8-1.2 mm. The surface of the pressure-resistant layer is provided with a honeycomb-shaped groove structure with a groove depth of 0.3-0.5 mm. The grooves are connected by reinforcing ribs. The pressure-resistant layer and the buffer layer are bonded and fixed with epoxy resin adhesive, and the thickness of the epoxy resin adhesive layer is 0.08-0.12 mm.

[0012] Furthermore, a nozzle is fixedly connected to one end of the water hose 2. The nozzle includes a power component and a water spraying component. The power component is used to drive the water spraying component to spray water.

[0013] This utility model has the following beneficial effects:

[0014] I. This utility model is equipped with an adjustable hose, which enhances the structural stability of the hose and the connecting pipe through mechanical connection, preventing water pressure fluctuations from causing loosening and leakage at the connection. The sealing ring improves the sealing between the connecting pipe and the adjustable hose, preventing water from leaking from the interface. Finally, the adjustable hose provides the hose with buffering capacity when bending or moving, adapting to the pipeline adjustment needs of complex fire-fighting scenarios. The sealing ring continues the sealing structure of the previous section, ensuring the sealing of the connection between the adjustable hose and the hose, forming a complete leak-proof system. Then, the fixed column provides a stable installation foundation for the hose, preventing the separation of the interlayer structure due to shaking during long-term use.

[0015] II. Based on the aforementioned beneficial effects, a leak-proof layer, a buffer layer, and a pressure-resistant layer are also incorporated. The oil resistance and elasticity of nitrile rubber effectively resist water pressure impact, while polyester fiber provides structural strength. The combination of these two materials enhances the tear resistance and durability of the leak-proof layer. A hot-pressing process ensures a tight bond between the two layers, preventing delamination or bubbles and enhancing overall leak-proof performance. Finally, a sealing coating fills the microscopic pores in the inner wall, forming a molecular-level sealing barrier to further reduce the risk of liquid penetration. Hot-melt adhesive bonding provides reliable interlayer bonding strength while allowing the buffer layer to undergo minor deformation upon impact, absorbing external stress (such as from stepping or squeezing) and protecting the inner wall. The system consists of a leak-proof layer, followed by a PTFE waterproof and breathable membrane to prevent external moisture from penetrating the buffer layer. Simultaneously, a microporous structure balances internal and external air pressure, preventing interlayer delamination or deformation caused by pressure differences. Utilizing the high strength and lightweight properties of carbon fiber, the pressure-resistant layer possesses excellent compression resistance, while reducing the overall weight of the hose and improving portability. Furthermore, the biomimetic honeycomb groove design disperses external pressure, enhancing the pressure-resistant layer's resistance to deformation, while reducing material usage and optimizing costs. Finally, an epoxy resin adhesive layer ensures that the pressure-resistant layer and buffer layer form a rigid whole, working together to absorb impact energy and improve the hose's resistance to external damage. Attached Figure Description

[0016] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying 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.

[0017] Figure 1 This is a schematic diagram of the overall design of this utility model;

[0018] Figure 2 This is a schematic diagram of the fixed column connection of this utility model;

[0019] Figure 3 This is a schematic diagram of the connection of the adjusting hose part of this utility model;

[0020] Figure 4 This is a schematic diagram of the connection of the leak-proof layer of this utility model.

[0021] The attached diagram lists the components represented by each number as follows:

[0022] In the diagram: 1. Water hose one; 2. Fixing device; 3. Connecting pipe one; 4. Screw; 5. Nut; 6. Sealing ring one; 7. Adjusting hose; 8. Sealing ring two; 9. Connecting pipe two; 10. Fixing post; 11. Water hose two; 12. Leak-proof layer; 13. Buffer layer; 14. Pressure-resistant layer; 15. Nozzle. Detailed Implementation

[0023] 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.

[0024] To make the objectives, technical solutions, and advantages of this utility model clearer, the embodiments of this utility model will be described in further detail below with reference to the accompanying drawings.

[0025] Please see Figure 1-4 As shown, this utility model is a pressure-resistant and leak-proof fire hose, including a hose 1, a fixing device 2 fixedly connected to the inner cavity of the hose 1, a connecting pipe 3 fixedly connected to one end of the hose 1, a screw 4 threadedly connected to the inner cavity of the connecting pipe 3, the screw 4 being fixedly connected to the fixing device 2, a nut 5 threadedly connected to the outer side of the screw 4, the nut 5 being rotatably disposed at one end of the connecting pipe 3, a sealing ring 6 fixedly connected to one end of the connecting pipe 3, an adjusting hose 7 fixedly connected to one end of the sealing ring 6, and the adjusting hose 7 being connected to the connecting pipe 3 through the sealing ring 6.

[0026] For example, the mechanical connection enhances the structural stability of the hose-1 and the connecting pipe-3, preventing water pressure fluctuations from causing loosening and leakage at the connection. The sealing ring-6 improves the sealing between the connecting pipe-3 and the regulating hose-7, preventing water leakage from the interface. Finally, the regulating hose-7 enables the hose to have buffering capacity when bending or moving, adapting to the pipeline adjustment needs of complex fire-fighting scenarios.

[0027] One end of the regulating hose 7 is fixedly connected to a sealing ring 2 8, one end of the sealing ring 2 8 is fixedly connected to a connecting pipe 2 9, one end of the connecting pipe 2 9 is fixedly connected to a fixing post 10, and one end of the fixing post 10 is fixedly connected to a water hose 2 11.

[0028] For example, the sealing structure of the front section is continued by the sealing ring 8 to ensure the sealing of the connection between the regulating hose 7 and the water hose 11, forming a complete leak-proof system. Then, the fixing column 10 provides a stable installation base for the water hose 11 to avoid the separation of the interlayer structure caused by shaking during long-term use.

[0029] A leak-proof layer 12 is fixedly connected to the outside of the water hose 2 11. The leak-proof layer 12 is made of nitrile rubber and polyester fiber composite. The nitrile rubber and polyester fiber are bonded together by hot pressing process. The thickness of the leak-proof layer 12 is 0.3-0.5 mm, and its inner wall is coated with a nano-level sealing coating.

[0030] For example, the oil resistance and elasticity of nitrile rubber can effectively resist water pressure impact, while polyester fiber provides structural strength. The combination of the two enhances the tear resistance and durability of the leak-proof layer 12. The hot pressing process ensures that the two layers are tightly bonded, avoiding delamination or bubbles and enhancing the overall leak-proof performance. Finally, the sealing coating fills the micropores in the inner wall, forming a molecular-level sealing barrier, further reducing the risk of liquid penetration.

[0031] A buffer layer 13 is fixedly connected to the outside of the leak-proof layer 12. The leak-proof layer 12 and the buffer layer 13 are bonded and fixed together by a hot melt adhesive layer with a thickness of 0.05-0.1 mm. The surface of the buffer layer 13 is coated with a waterproof and breathable membrane. The waterproof and breathable membrane is a polytetrafluoroethylene microporous membrane with a thickness of 0.03-0.05 mm.

[0032] For example, the hot melt adhesive layer provides reliable interlayer bonding strength while allowing the buffer layer 13 to undergo minor deformation when subjected to impact, absorbing external stress (such as stepping or squeezing) and protecting the inner leak-proof layer 12. Then, the polytetrafluoroethylene waterproof and breathable membrane prevents external moisture from penetrating the buffer layer 13, while balancing the internal and external air pressure through the microporous structure to avoid interlayer peeling or deformation caused by air pressure difference.

[0033] A pressure-resistant layer 14 is fixedly connected to the outside of the buffer layer 13. The pressure-resistant layer 14 is made of high-strength carbon fiber and epoxy resin composite. The volume ratio of carbon fiber is 60%-70%. The thickness of the pressure-resistant layer 14 is 0.8-1.2 mm. The surface of the pressure-resistant layer 14 is provided with a honeycomb groove structure with a groove depth of 0.3-0.5 mm. The grooves are connected by reinforcing ribs. The pressure-resistant layer 14 and the buffer layer 13 are bonded and fixed with epoxy resin adhesive. The thickness of the epoxy resin adhesive layer is 0.08-0.12 mm.

[0034] For example, by utilizing the high strength and lightweight properties of carbon fiber, the pressure-resistant layer 14 has excellent compression resistance while reducing the overall weight of the hose and improving portability. Then, the biomimetic structure design of the honeycomb groove can disperse external pressure, enhance the deformation resistance of the pressure-resistant layer 14, reduce material usage, optimize costs, and ensure that the pressure-resistant layer 14 and the buffer layer 13 form a rigid whole through epoxy resin bonding, so that the buffer layer 13 can absorb impact energy and improve the hose's resistance to external damage.

[0035] One end of the water hose 11 is fixedly connected to a nozzle 15. The nozzle 15 includes a power component and a water spraying component. The power component is used to drive the water spraying component to spray water.

[0036] For example, the water pressure and flow rate can be adjusted according to fire protection needs to improve fire extinguishing efficiency and scene adaptability.

[0037] Working principle: Hose 1 is structurally stable through mechanical connection via fastener 2, connecting pipe 3, screw 4, and nut 5. Sealing ring 6 and adjusting hose 7 work together to ensure a seal at the connection. Adjusting hose 7 can buffer bending stress. Hose 2 11 is connected to connecting pipe 2 9 via fixing post 10. Its outer leak-proof layer 12 is made of nitrile rubber and polyester fiber composite and coated with a nano-sealing coating to prevent water leakage. The buffer layer 13 outside the leak-proof layer 12 is bonded to the leak-proof layer 12 with hot melt adhesive. The polytetrafluoroethylene waterproof and breathable membrane on the surface balances air pressure and is waterproof. The buffer layer 13 absorbs external impact and protects the leak-proof layer 12. The outermost pressure-resistant layer 14 is made of carbon fiber and epoxy resin composite. The honeycomb groove structure disperses pressure and is connected to the buffer layer 13 with epoxy resin adhesive to jointly resist compression. The power component of the end nozzle 15 drives the water spray component, and the water output mode can be adjusted to adapt to different fire extinguishing needs. The whole system achieves pressure resistance and leak prevention through multi-layer structure.

[0038] The preferred embodiments of this utility model disclosed above are merely illustrative of the present utility model. These preferred embodiments do not exhaustively describe all details, nor do they limit the utility model to the specific implementations described. Clearly, many modifications and variations can be made based on the content of this specification. This specification selects and specifically describes these embodiments to better explain the principles and practical applications of this utility model, thereby enabling those skilled in the art to better understand and utilize it. This utility model is limited only by the claims and their full scope and equivalents.

Claims

1. A pressure-resistant and leak-proof fire hose, characterized in that, Includes a water hose (1), a fixture (2) is fixedly connected to the inner cavity of the water hose (1), a connecting pipe (3) is fixedly connected to one end of the water hose (1), a screw (4) is threadedly connected to the inner cavity of the connecting pipe (3), the screw (4) is fixedly connected to the fixture (2), a nut (5) is threadedly connected to the outer side of the screw (4), the nut (5) is rotatably set at one end of the connecting pipe (3), a sealing ring (6) is fixedly connected to one end of the connecting pipe (3), and an adjusting hose (7) is fixedly connected to one end of the sealing ring (6), the adjusting hose (7) is connected to the connecting pipe (3) through the sealing ring (6).

2. The pressure-resistant and leak-proof fire hose according to claim 1, characterized in that: One end of the regulating hose (7) is fixedly connected to a sealing ring two (8), one end of the sealing ring two (8) is fixedly connected to a connecting pipe two (9), one end of the connecting pipe two (9) is fixedly connected to a fixing post (10), and one end of the fixing post (10) is fixedly connected to a water hose two (11).

3. The pressure-resistant and leak-proof fire hose according to claim 2, characterized in that: The outer side of the second water hose (11) is fixedly connected to a leak-proof layer (12), which is made of nitrile rubber and polyester fiber composite. The nitrile rubber and polyester fiber are bonded together by hot pressing process. The thickness of the leak-proof layer (12) is 0.3-0.5 mm, and its inner wall is coated with a nano-level sealing coating.

4. A pressure-resistant and leak-proof fire hose according to claim 3, characterized in that: A buffer layer (13) is fixedly connected to the outside of the leak-proof layer (12). The leak-proof layer (12) and the buffer layer (13) are bonded and fixed together by a hot melt adhesive layer. The thickness of the hot melt adhesive layer is 0.05-0.1 mm. The surface of the buffer layer (13) is coated with a waterproof and breathable membrane. The waterproof and breathable membrane is a polytetrafluoroethylene microporous membrane with a thickness of 0.03-0.05 mm.

5. A pressure-resistant and leak-proof fire hose according to claim 4, characterized in that: A pressure-resistant layer (14) is fixedly connected to the outside of the buffer layer (13). The pressure-resistant layer (14) is made of high-strength carbon fiber and epoxy resin composite. The volume ratio of carbon fiber is 60%-70%. The thickness of the pressure-resistant layer (14) is 0.8-1.2 mm. The surface of the pressure-resistant layer (14) is provided with a honeycomb groove structure. The groove depth is 0.3-0.5 mm. The grooves are connected by reinforcing ribs. The pressure-resistant layer (14) and the buffer layer (13) are bonded and fixed with epoxy resin adhesive. The thickness of the epoxy resin adhesive layer is 0.08-0.12 mm.

6. A pressure-resistant and leak-proof fire hose according to claim 5, characterized in that: One end of the water hose (11) is fixedly connected to a nozzle (15). The nozzle (15) includes a power component and a water spraying component. The power component is used to drive the water spraying component to spray water.

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