Explosion-proof high-pressure resistant fire hose

Abstract

The utility model discloses a kind of explosion-proof high-pressure type fire hose, including fire hose;The fire hose is sequentially composed of inner liner, fiber braiding layer, reinforcing layer, heat insulation layer, buffer layer, wear-resistant layer from inside to outside;Annular reinforcing rib is provided on the fiber braiding layer outside;Annular buffer convex rib is provided on the buffer layer outside, and diamond non-slip grain is provided on the wear-resistant layer outer surface, the utility model: fiber braiding layer and outside annular reinforcing rib synergistic effect, make stress more uniform, combined with the spiral winding structure of reinforcing layer, effectively promote water hose high-pressure capacity, avoid the problem of bulging, bursting caused by local tensile force exceeding standard and pressure fluctuation, buffer layer and annular buffer convex rib can absorb external impact and friction, reduce inner layer reinforcing structure damage, improve explosion-proof performance.Heat insulation layer can block external high temperature, prevent inner layer material aging, ensure water flow delivery stability.

Description

Technical Field

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

[0002] Fire hoses, as a core water delivery component in fire rescue, are widely used in urban fire rescue, industrial emergency firefighting, and forest firefighting. Their main function is to connect fire pumps and fire hoses to achieve a stable delivery of high-pressure water. With the continuous upgrading of fire rescue needs, the performance requirements for fire hoses are gradually increasing. They not only need basic water delivery capacity but also need to adapt to different pressure levels, temperature environments, and complex terrain. Currently, most fire hoses on the market employ multi-layer composite structure designs, combining the properties of different materials to achieve a balance between water delivery stability and structural strength, playing an irreplaceable role in various firefighting operations.

[0003] In high-pressure applications, existing fire hoses exert a uniform radial expansion force on the inner wall of the hose when transporting high-pressure water. However, due to their reliance on a single-fiber woven structure, the force transmission between fibers is uneven, making localized areas susceptible to damage due to tension exceeding material limits. Furthermore, the hoses cannot effectively absorb impact forces from external shocks or friction, easily damaging the inner reinforcement structure and reducing overall explosion-proof performance. In addition, in high-temperature fire environments, external heat is easily conducted to the interior, causing aging and damage to the inner material and affecting the stability of water delivery. Utility Model Content

[0004] The purpose of this utility model is to provide an explosion-proof and high-pressure resistant fire hose to solve the problem mentioned in the background art that existing fire hoses are prone to damage to the inner reinforcement structure under high pressure and high temperature conditions, affecting their use.

[0005] To achieve the above objectives, this utility model provides the following technical solution: An explosion-proof and high-pressure resistant fire hose includes a fire hose; The fire hose consists of an inner lining layer, a fiber braided layer, a reinforcing layer, a heat insulation layer, a buffer layer, and a wear-resistant layer from the inside out. The outer side of the fiber braided layer is provided with annular reinforcing ribs; the outer side of the buffer layer is provided with annular buffer ridges; and the outer surface of the wear-resistant layer is provided with diamond-shaped anti-slip texture.

[0006] In a preferred embodiment of this utility model, the thickness of the inner lining layer is 1.2 mm, and the material of the inner lining layer is thermoplastic polyurethane of model TPU-1185.

[0007] In a preferred embodiment of this utility model, the thickness of the fiber braided layer is 0.8 mm, and the material of the fiber braided layer is para-aramid fiber with a specification of 1000D.

[0008] In a preferred embodiment of this utility model, the spacing between the annular reinforcing ribs on adjacent sides is 10mm, and the annular reinforcing ribs are made of para-aramid fiber with a specification of 1000D.

[0009] In a preferred embodiment of this utility model, the reinforcing layer is made of 304 stainless steel wire, the stainless steel wires of the reinforcing layer are distributed in a spiral winding manner, and the diameter of the stainless steel wires of the reinforcing layer is 0.3mm.

[0010] In a preferred embodiment of this utility model, the thickness of the heat insulation layer is 1.0 mm, and the material of the heat insulation layer is nitrile rubber with an acrylonitrile content of 33%.

[0011] In a preferred embodiment of this utility model, the thickness of the buffer layer is 0.5 mm, and the material of the buffer layer is polyester staple fiber cloth with a weight of 120 g / m².

[0012] In a preferred embodiment of this utility model, the material of the annular buffer ridge is 304D polyester fiber, and the distance between adjacent annular buffer ridges is 8mm.

[0013] In a preferred embodiment of this utility model, the thickness of the wear-resistant layer is 1.5 mm, and the wear-resistant layer material is chlorinated polyethylene with model number CPE-135B.

[0014] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention.

[0015] Beneficial effects: The woven fiber layer and the outer annular reinforcing ribs work synergistically to ensure more uniform stress distribution. Combined with the spiral winding structure of the reinforcing layer, this effectively improves the hose's resistance to high pressure, preventing bulging and bursting caused by excessive local tension and pressure fluctuations. The buffer layer and annular buffer ridges absorb external impacts and friction, reducing damage to the inner reinforcing structure and improving explosion-proof performance. The insulation layer blocks external high temperatures, prevents aging of the inner material, and ensures stable water flow.

[0016] The above description is merely an overview of the technical solution of this utility model. In order to better understand the technical means of this utility model and to implement it according to the contents of the specification, the preferred embodiments of this utility model are described in detail below with reference to the accompanying drawings. The specific implementation methods of this utility model are given in detail in the following embodiments and their accompanying drawings. Attached Figure Description

[0017] The above and / or additional aspects and advantages of this utility model will become apparent and readily understood from the description of the embodiments taken in conjunction with the following drawings, in which: Figure 1 This is a schematic diagram of the main structure of an explosion-proof and high-pressure resistant fire hose; Figure 2 An explosion-proof and high-pressure resistant fire hose Figure 1 Schematic diagram of the structure at point A in the middle; Figure 3 This is a schematic diagram of the fiber braided layer structure in an explosion-proof and high-pressure-resistant fire hose; Figure 4 This is a schematic diagram of the buffer layer structure in an explosion-proof and high-pressure resistant fire hose.

[0018] In the diagram: 10, inner lining layer; 20, fiber braided layer; 21, annular reinforcing rib; 30, reinforcing layer; 40, heat insulation layer; 50, buffer layer; 51, annular buffer ridge; 60, wear-resistant layer; 61, diamond-shaped anti-slip pattern. Detailed Implementation

[0019] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this utility model, and should not be construed as limiting this utility model.

[0020] Please refer to Figures 1-4 This utility model discloses an explosion-proof and high-pressure resistant fire hose, which includes a fire hose. The fire hose is composed of an inner lining layer 10, a fiber braided layer 20, a reinforcing layer 30, a heat insulation layer 40, a buffer layer 50, and a wear-resistant layer 60 from the inside out. The six-layer structure is tightly bonded to form an integrated whole, which can work together to bear the radial pressure brought by the high-pressure water flow and the influence of the external environment, thereby improving the overall performance of the hose.

[0021] The outer side of the fiber braided layer 20 is provided with annular reinforcing ribs 21; the outer side of the buffer layer 50 is provided with annular buffer ribs 51; and the outer surface of the wear-resistant layer 60 is provided with diamond-shaped anti-slip textures 61. These special structures optimize the performance of the water hose from three dimensions: reinforcement, buffering, and anti-slip, to ensure the stability of the water hose in different usage scenarios.

[0022] The inner liner 10 has a thickness of 1.2mm and is made of thermoplastic polyurethane of model TPU-1185. This material has excellent corrosion resistance and flexibility, which can prevent impurities in the water flow from eroding the inner wall of the hose. At the same time, it ensures that the inner liner is not easily broken when the hose is bent, maintains the smoothness of the water flow channel, reduces water flow resistance, and ensures stable delivery of high-pressure water flow.

[0023] The fiber braided layer 20 has a thickness of 0.8mm. The material of the fiber braided layer 20 is 1000D para-aramid fiber. Para-aramid fiber has high strength characteristics and can effectively withstand the radial tension generated by high-pressure water flow, preventing the water hose from radially expanding and deforming due to excessive pressure. It provides basic high-pressure support for the water hose. At the same time, the fiber braided structure has good air permeability, which can prevent water vapor condensation inside the water hose due to temperature changes from affecting its use.

[0024] The spacing between adjacent annular reinforcing ribs 21 is 10mm. The material of the annular reinforcing ribs 21 is para-aramid fiber with a specification of 1000D. The annular reinforcing ribs 21 can further strengthen the circumferential strength of the fiber braided layer 20, so that the fiber braided layer 20 is subjected to radial pressure more evenly, avoiding damage to the braided layer caused by local stress concentration. At the same time, the annular reinforcing ribs 21 set at intervals will not affect the bending flexibility of the hose, ensuring that the hose can be laid and used normally in narrow spaces.

[0025] The reinforcing layer 30 is made of 304 stainless steel wire. The stainless steel wire of the reinforcing layer 30 is distributed in a spiral winding manner. The diameter of the stainless steel wire of the reinforcing layer 30 is 0.3mm. The 304 stainless steel wire has high strength and corrosion resistance. The spiral winding method can make the reinforcing layer 30 evenly wrapped around the outside of the fiber braided layer 20 to form a three-dimensional reinforcing structure, which further improves the high pressure resistance and explosion-proof performance of the water hose. Even when the water flow pressure fluctuates, it can maintain the structural stability of the water hose and prevent the water hose from bulging or bursting locally.

[0026] The insulation layer 40 has a thickness of 1.0 mm and is made of nitrile rubber with an acrylonitrile content of 33%. Nitrile rubber has good heat insulation and oil resistance, which can effectively block the influence of the external high temperature environment on the inside of the hose, and avoid the aging of the inner material or the increase of water temperature due to high temperature, which affects the fire extinguishing effect. At the same time, the 33% acrylonitrile content gives the insulation layer 40 a certain degree of elasticity, which can buffer minor external impacts and protect the inner reinforcement structure.

[0027] The thickness of the buffer layer 50 is 0.5mm. The material of the buffer layer 50 is polyester staple fiber cloth with a weight of 120g / ㎡. Polyester staple fiber cloth has good impact absorption performance and can absorb the impact force generated by external collision and friction, avoiding the impact force from acting directly on the reinforcing layer 30 and the heat insulation layer 40, reducing the risk of damage to the inner structure. At the same time, the softness of the polyester staple fiber cloth can improve the overall flexibility of the water hose, making it easier to store and unfold the water hose.

[0028] The material of the annular buffer ridge 51 is 304D polyester fiber. The distance between adjacent annular buffer ridges 51 is 8mm. The annular buffer ridge 51 can increase the external contact area of ​​the buffer layer 50. When the water hose comes into contact with the ground or other objects, the deformation of the ridge can further absorb the impact force. At the same time, it can reduce the direct friction between the outer surface of the water hose and the ground, reduce the wear rate of the buffer layer 50, and extend the service life of the water hose.

[0029] The wear-resistant layer 60 has a thickness of 1.5mm. The material of the wear-resistant layer 60 is chlorinated polyethylene of model CPE-135B. Chlorinated polyethylene has excellent wear resistance and weather resistance, which can resist the friction damage between the water hose and the ground, walls and other objects during the laying and dragging process, protect the internal structure from external wear, and at the same time, its good weather resistance allows the water hose to be used for a long time in outdoor environments such as sun exposure and rain without aging, maintaining the performance stability of the water hose.

[0030] The working principle of this utility model is as follows: When the fire hose is in operation, the inner lining layer 10 directly contacts the high-pressure water flow. The smooth surface of TPU-1185 thermoplastic polyurethane reduces water flow resistance, while its corrosion resistance prevents water flow impurities from eroding. The fiber braided layer 20 and the outer annular reinforcing rib 21 jointly bear the radial tensile force generated by the water flow. The high strength characteristics of the para-aramid fiber ensure that the hose does not undergo radial expansion deformation. The 304 stainless steel wire of the reinforcing layer 30 further enhances the hose's high-pressure resistance through a spiral winding structure, preventing the hose from bulging or bursting due to pressure fluctuations. The nitrile rubber of the heat insulation layer 40 blocks external high temperatures, preventing aging of the inner layer material and changes in water flow temperature. The buffer layer 50 and the annular buffer rib 51 absorb external impacts and friction, reducing damage to the inner layer structure. The chlorinated polyethylene of the wear-resistant layer 60 resists external wear and protects the overall structure. The synergistic effect of each layer achieves stable delivery of high-pressure water and long-term reliable use of the hose.

[0031] Although embodiments of the present invention have been shown and described, those skilled in the art will understand that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the claims and their equivalents.

Claims

1. An explosion-proof and high-pressure resistant fire hose, characterized in that, Including fire hoses; The fire hose is composed of an inner lining layer (10), a fiber braided layer (20), a reinforcing layer (30), a heat insulation layer (40), a buffer layer (50), and a wear-resistant layer (60) from the inside out. The outer side of the fiber braided layer (20) is provided with annular reinforcing ribs (21); the outer side of the buffer layer (50) is provided with annular buffer ridges (51); and the outer surface of the wear-resistant layer (60) is provided with diamond-shaped anti-slip patterns (61).

2. The explosion-proof and high-pressure resistant fire hose according to claim 1, characterized in that, The thickness of the inner lining layer (10) is 1.2 mm, and the material of the inner lining layer (10) is thermoplastic polyurethane with model number TPU-1185.

3. The explosion-proof and high-pressure resistant fire hose according to claim 1, characterized in that, The thickness of the fiber braided layer (20) is 0.8 mm, and the material of the fiber braided layer (20) is para-aramid fiber with a specification of 1000D.

4. The explosion-proof and high-pressure resistant fire hose according to claim 1, characterized in that, The spacing between the adjacent annular reinforcing ribs (21) is 10 mm, and the material of the annular reinforcing ribs (21) is para aramid fiber with a specification of 1000D.

5. The explosion-proof and high-pressure resistant fire hose according to claim 1, characterized in that, The reinforcing layer (30) is made of 304 stainless steel wire, and the stainless steel wire of the reinforcing layer (30) is distributed in a spiral winding manner. The diameter of the stainless steel wire of the reinforcing layer (30) is 0.3 mm.

6. The explosion-proof and high-pressure resistant fire hose according to claim 1, characterized in that, The insulation layer (40) has a thickness of 1.0 mm and is made of nitrile rubber with an acrylonitrile content of 33%.

7. The explosion-proof and high-pressure resistant fire hose according to claim 1, characterized in that, The thickness of the buffer layer (50) is 0.5 mm, and the material of the buffer layer (50) is polyester staple fiber cloth with a weight of 120 g / m².

8. The explosion-proof and high-pressure resistant fire hose according to claim 1, characterized in that, The material of the annular buffer ridge (51) is 304D polyester fiber, and the distance between adjacent annular buffer ridges (51) is 8mm.

9. The explosion-proof and high-pressure resistant fire hose according to claim 1, characterized in that, The wear-resistant layer (60) has a thickness of 1.5 mm, and the wear-resistant layer (60) is made of chlorinated polyethylene with model number CPE-135B.

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