Wear-resistant fire hose

Abstract

The utility model discloses a wear-resistant fire hose. The wear-resistant fire hose comprises a hose main body, a joint and a wear-resistant protective layer, the wear-resistant protective layer is arranged, that is, the wear-resistant inner layer, the codunnilon layer and the wear-resistant outer layer which are arranged in the wear-resistant layer are matched with one another, so that high-strength, high-wear-resistant and high-fire-resistant states can be formed, the water hose main body is difficult to wear and can be efficiently used, and the barrier strips are arranged, that is, the wear-resistant convex strips are arranged on the outer side of the wear-resistant layer at equal intervals, so that the wear-resistant and fire-resistant water hose can be effectively used. The water hose main body is arranged on the outer side of the wear-resistant convex strip to achieve blocking bearing of grounding of the water hose main body, reduce the contact area of the water hose main body and the ground and reduce the dragging abrasion, and meanwhile, the carbon fiber protective layer is arranged on the outer side of the wear-resistant convex strip to achieve strengthening of the structural strength of the wear-resistant convex strip, reduce the abrasion and prolong the blocking bearing service life, so that the water hose main body assists in blocking bearing. And the contact abrasion is reduced.

Description

Technical Field

[0001] The utility model relates to the field of fire hoses, in particular to a wear-resistant fire hose. Background Art

[0002] A fire hose is a flexible pipe used to transport flame-retardant liquids such as high-pressure water or foam. Traditional fire hoses are lined with rubber and wrapped with linen fabric on the outside. Advanced fire hoses are made of polymer materials such as polyurethane. There are metal joints at both ends of the fire hose, which can be connected to another hose to extend the distance or to a nozzle to increase the liquid spray pressure.

[0003] The existing application number is CN202220340239.3, which is a wear-resistant fire hose. It includes a hose body, connecting pipes are fixedly installed inside the two sides of the hose body, and first connecting blocks and second connecting blocks fixedly connected to the outer sides of the connecting pipes are fixedly installed at both ends of the hose body. Tightening bolts are evenly spaced on the surface of the first connecting block and threadedly rotated. The hose body includes an inner base layer and an outer layer, and a corrosion-resistant layer is fixedly installed on the side of the inner base layer away from the outer layer. The utility model aligns the first connecting block with the second connecting block, and then inserts the fixing protrusion into the fixing groove for connection, and at the same time, the sealing layer is inserted into the sealing groove for sealing, and then the connection is strengthened by the cooperation of the tightening bolts and the threaded holes, which effectively avoids falling off during use, so that the sealing layer moves and squeezes toward the sealing groove, thereby enhancing the overall sealing effect and avoiding water leakage.

[0004] The above-mentioned existing fire hoses improve the wear resistance of the fire hoses and increase their overall service life by adding an outer layer and a wear-resistant layer inside. However, the outer surface of the fire hoses is still more likely to contact the ground over a large area. Over time, the wear resistance is still high, resulting in a shorter service life of the fire hoses and easier damage. Utility Model Content

[0005] Therefore, in order to solve the above-mentioned shortcomings, the utility model provides a wear-resistant fire hose.

[0006] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme: a wear-resistant fire hose, including a hose body, a joint is connected at the end of the hose body, a wear-resistant protective layer is arranged on the outside of the hose body, the hose body includes a rubber lining, a reinforcement layer, an elastic layer, a textile layer and a fire retardant coating arranged in sequence from the inside to the outside, the wear-resistant protective layer includes a wear-resistant layer and a barrier strip arranged on the outside of the wear-resistant layer, the wear-resistant layer includes a wear-resistant inner layer, a Cordura nylon layer arranged on the outside of the wear-resistant inner layer and a wear-resistant outer layer arranged on the outside of the Cordura nylon layer, the barrier strip includes a wear-resistant convex strip installed on the outside of the wear-resistant layer and a carbon fiber protective layer connected to the outside of the wear-resistant convex strip.

[0007] Preferably, the wear-resistant inner layer is made of polyester material, and the inner side of the wear-resistant inner layer is bonded to the hose body.

[0008] Preferably, the Cordura nylon layer is unidirectionally spirally wound around the outer side of the wear-resistant inner layer.

[0009] Preferably, the wear-resistant outer layer is made of aramid fiber material, and the overall thickness of the wear-resistant outer layer is consistent with that of the wear-resistant inner layer.

[0010] Preferably, the barrier strips are installed in an annular manner and are equidistantly arranged along the outer side of the wear-resistant layer, and the barrier strips are arranged on the outer side of the wear-resistant layer in the shape of long strips.

[0011] Preferably, the wear-resistant convex strip is made of a rubber layer material, and a carbon fiber protective layer is bonded and wrapped on the outer side of the wear-resistant convex strip.

[0012] Beneficial effects of the utility model:

[0013] Advantage 1: The utility model can achieve the formation of high strength, high wear resistance and high fire resistance by setting a wear-resistant protective layer, that is, the wear-resistant inner layer, the Cordura nylon layer and the wear-resistant outer layer arranged inside the wear-resistant layer, so that the water hose body is not easy to wear and can be used efficiently.

[0014] Advantage 2: The utility model sets a barrier strip, that is, sets wear-resistant convex strips equidistantly on the outside of the wear-resistant layer to achieve barrier connection of the hose body to the ground, reduce the contact area between the hose body and the ground, and reduce dragging wear. At the same time, a carbon fiber protective layer is set on the outside of the wear-resistant convex strip to enhance the structural strength of the wear-resistant convex strip, reduce wear, and extend the barrier connection life, thereby achieving the advantages of auxiliary barrier connection of the hose body and reduced contact wear. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the structure of the utility model;

[0016] Figure 2 This is a schematic diagram of the internal structure of the hose main body of the utility model;

[0017] Figure 3 This is a schematic diagram of the structure of the wear-resistant protective layer of the utility model;

[0018] Figure 4 This is a schematic diagram of the internal structure of the wear-resistant protective layer of the utility model;

[0019] Figure 5 It is a right view structural schematic diagram of the connection between the Cordura nylon layer and the wear-resistant inner layer of the utility model.

[0020] Among them: hose body-1, rubber lining-11, reinforcement layer-12, elastic layer-13, textile layer-14, fire retardant coating-15, joint-2, wear-resistant protective layer-3, wear-resistant layer-31, wear-resistant inner layer-311, Cordura nylon layer-312, wear-resistant outer layer-313, barrier strip-32, wear-resistant convex strip-321, carbon fiber protective layer-322. DETAILED DESCRIPTION

[0021] In order to further explain the technical solution of the present utility model, it is described in detail through specific embodiments below.

[0022] See also Figure 1-5 The utility model provides a wear-resistant fire hose, including a hose body 1, a joint 2 is connected at the end of the hose body 1, and a wear-resistant protective layer 3 is arranged on the outside of the hose body 1, so as to improve the wear resistance of the hose body 1 and enhance the overall service life. The hose body 1 includes a rubber lining 11, a reinforcement layer 12, an elastic layer 13, a textile layer 14 and a fireproof coating 15 arranged in sequence from the inside to the outside. The wear-resistant protective layer 3 includes a wear-resistant layer 31 placed on the inside to achieve wear-resistant protection, and a barrier strip 32 installed on the outside of the wear-resistant layer 31 to achieve isolation and acceptance, and reduce the contact area of ​​the hose body 1. The wear-resistant layer 31 includes a wear-resistant inner layer 311 arranged in a circular sleeve shape, which is correspondingly bonded to the outside of the wear-resistant inner layer 311 to achieve The Cordura nylon layer 312 with enhanced wear resistance is bonded to the outside of the Cordura nylon layer 312 to achieve a wear-resistant outer layer 313 with further enhanced wear resistance. The barrier strip 32 includes wear-resistant ridges 321 equidistantly arranged on the outside of the wear-resistant outer layer 313 to achieve barrier cooperation, and a carbon fiber protective layer 322 connected to the outside of the wear-resistant ridges 321. Carbon fiber is a super-strong material made of high-performance fiber as a substrate and further processed. Carbon fiber has the advantages of high strength, light weight, high rigidity, good conductivity, etc. In order to enhance the fire resistance, the carbon fiber protective layer 322 has a flame retardant added to the inside to form a flame retardant layer on the outside, so as to avoid excessive temperature and melting damage to the water hose body 1.

[0023] Among them, the material composed of the entire hose body 1 is consistent with the fire hose in the prior art. Therefore, the specific structure and style of the internal material of the hose body 1 will not be described in detail.

[0024] Among them, the wear-resistant inner layer 311 is made of polyester, and the inner side of the wear-resistant inner layer 311 is bonded to the hose body 1. Polyester fiber, also often called polyester, is a synthetic fiber. The strength and wear resistance of polyester fiber are very high, which makes the fabric or material made of it very durable and able to withstand daily use. Polyester fiber has good elasticity, which means that it can quickly return to its original shape after being stretched and is not easy to deform, thereby assisting in strengthening the use strength and wear resistance of the hose body 1; the Cordura nylon layer 312 is unidirectionally spirally wound on the outside of the wear-resistant inner layer 311, so that the Cordura nylon layer 312 can stably wrap the wear-resistant inner layer 311, thereby achieving a stable construction of the wear-resistant protective state, and the Cordura nylon fiber has wear resistance and tear resistance. Unparalleled strength, thereby ensuring that the water hose body 1 can be used with high intensity and is not easy to be worn and damaged; the wear-resistant outer layer 313 is made of aramid silk fiber material, and the overall thickness of the wear-resistant outer layer 313 is consistent with that of the wear-resistant inner layer 311, and aramid fiber, also known as polyterephthalamide fiber, is a high-tech synthetic fiber with the characteristics of light weight, high strength, high modulus, high temperature resistance, high corrosion resistance, and good flame retardancy. Among them, aramid fiber exhibits good performance in fire resistance. The melting point of aramid fiber is as high as 320°C and the ignition point is as high as 600°C. It has low smoke and no dripping. Although it is easy to oxidize in a high temperature environment, it will not melt and drip, and its flame retardant performance is excellent. Even in a fire, aramid fiber can maintain a certain strength and rigidity.

[0025] Among them, the barrier strips 32 are installed in a circular shape and equidistantly along the outer side of the wear-resistant layer 31, and the barrier strips 32 are arranged in a long strip shape on the outer side of the wear-resistant layer 31. In this way, the barrier strips 32 arranged in multiple places can achieve auxiliary barrier cooperation to avoid large-area contact between the outer side of the water hose body 1 and the ground, thereby greatly reducing the contact wear phenomenon; the wear-resistant convex strips 321 are made of rubber layer material, and the outer side of the wear-resistant convex strips 321 are bonded and wrapped with a carbon fiber protective layer 322. In this way, under the combination of the wear-resistant convex strips 321 and the carbon fiber protective layer 322, a high-strength auxiliary barrier state can be formed, which greatly enhances the overall service life of the water hose body 1.

[0026] Here’s how it works:

[0027] First, a wear-resistant protective layer 3 is arranged on the outside of the hose body 1, so that the hose body 1 can realize the auxiliary wear-resistant protective state;

[0028] Among them, in combination with the wear-resistant layer 31, the wear resistance of the hose body 1 can be enhanced, that is, the wear-resistant protective structure composed of the wear-resistant inner layer 311, the cordura nylon layer 312 and the wear-resistant outer layer 313 can significantly enhance the wear resistance of the hose body 1, that is, the wear-resistant inner layer 311 and the wear-resistant outer layer 313 can achieve high-strength wear resistance and high-strength fire resistance under the corresponding polyester polyester material and aramid fiber material, so as to ensure that the hose body 1 is not easily affected by dragging and wear and damage during use, and can be highly flame retardant and reduce overheating and melting. The cordura nylon layer 312 is unidirectionally spirally wound on the outside of the wear-resistant inner layer 311 to achieve a highly efficient wrapping combination, so that the overall wear-resistant structure strength is improved, the structural looseness is reduced, and the phenomenon of reduced wear resistance is caused.

[0029] Secondly, a barrier strip 32 is provided on the outside of the wear-resistant layer 31 to make the hose body 1 contact the ground with a small area and reduce contact wear. That is, a plurality of wear-resistant ridges 321 are equidistantly provided along a circular trajectory on the outside of the wear-resistant outer layer 313 to achieve auxiliary barrier and receiving cooperation. Moreover, since the wear-resistant ridge 321 is made of a rubber layer material, the subsequent winding of the hose body 1 is relatively light and less likely to cause trouble. In order to improve the wear resistance of the wear-resistant ridge 321, a carbon fiber protective layer 322 is provided on the outside of the wear-resistant ridge 321 to enhance the overall strength of the wear-resistant ridge 321 and ensure the stability of the barrier receiving state, thereby achieving the advantages of auxiliary barrier receiving of the hose body 1 and reducing contact wear.

[0030] The utility model provides a wear-resistant fire hose, which can achieve high strength, high wear resistance and high fire resistance by arranging a wear-resistant protective layer 3, that is, the wear-resistant inner layer 311, the Cordura nylon layer 312 and the wear-resistant outer layer 313 arranged inside the wear-resistant layer 31, so that the hose body 1 is not easy to wear and can be used efficiently, and a barrier strip 32 is arranged, that is, wear-resistant convex strips 321 are arranged equidistantly on the outside of the wear-resistant layer 31 to achieve barrier connection of the hose body 1 to the ground, reduce the contact area between the hose body 1 and the ground, and reduce dragging wear. At the same time, a carbon fiber protective layer 322 is arranged on the outside of the wear-resistant convex strip 321 to strengthen the structural strength of the wear-resistant convex strip 321, reduce wear, and extend the barrier connection life, thereby achieving the advantages of auxiliary barrier connection of the hose body 1 and reducing contact wear.

[0031] The above description is only a preferred example of the present invention and is not intended to limit the present invention. Although the present invention is described in detail with reference to the above embodiments, those skilled in the art can still modify the technical solutions described in the above embodiments or replace some of the technical features therein by equivalents. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A wear-resistant fire hose, characterized in that: The invention comprises a hose body (1), wherein the hose body (1) is connected to a joint (2) at its end, and an abrasion-resistant protective layer (3) is arranged on the outside of the hose body (1). The hose body (1) comprises a rubber lining (11), a reinforcement layer (12), an elastic layer (13), a textile layer (14) and a fireproof coating (15) which are arranged in sequence from the inside to the outside, and the abrasion-resistant protective layer (3) comprises a wear-resistant layer (31) and a protective film (24) arranged on the wear-resistant layer (31). The outer barrier strip (32) is characterized in that the wear-resistant layer (31) comprises a wear-resistant inner layer (311), a Cordura nylon layer (312) arranged on the outer side of the wear-resistant inner layer (311), and a wear-resistant outer layer (313) arranged on the outer side of the Cordura nylon layer (312); the barrier strip (32) comprises a wear-resistant convex strip (321) installed on the outer side of the wear-resistant layer (31) and a carbon fiber protective layer (322) connected to the outer side of the wear-resistant convex strip (321).

2. A wear-resistant fire hose according to claim 1, characterized in that: The wear-resistant inner layer (311) is made of polyester material, and the inner side of the wear-resistant inner layer (311) is bonded to the hose body (1).

3. The wear-resistant fire hose according to claim 1, characterized in that: The Cordura nylon layer (312) is unidirectionally spirally wound around the outer side of the wear-resistant inner layer (311).

4. The wear-resistant fire hose according to claim 1, characterized in that: The wear-resistant outer layer (313) is made of aramid fiber material, and the overall thickness of the wear-resistant outer layer (313) is consistent with that of the wear-resistant inner layer (311).

5. The wear-resistant fire hose according to claim 1, characterized in that: The barrier strips (32) are installed in an annular manner and at equal intervals along the outer side of the wear-resistant layer (31), and the barrier strips (32) are arranged in a long strip shape on the outer side of the wear-resistant layer (31).

6. The wear-resistant fire hose according to claim 1, characterized in that: The wear-resistant convex strip (321) is made of a rubber layer material, and a carbon fiber protective layer (322) is bonded and wrapped on the outer side of the wear-resistant convex strip (321).

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