Fire hose with good wear resistance

Abstract

This utility model discloses a fire hose with good wear resistance, comprising a fire hose body, the fire hose body including a polyurethane base layer, and a plurality of equally spaced stainless steel wires disposed on the inner surface of the polyurethane base layer. A second protective layer is disposed on the outer side of the polyurethane base layer, and a first protective layer is disposed on the outer side of the second protective layer. The second protective layer includes a fluorocarbon rubber layer and an EPDM rubber layer, and the first protective layer includes a silicon carbide fiber layer and an alumina fiber layer. The fluorocarbon rubber layer is connected to the outer side of the polyurethane base layer with PP adhesive, and the EPDM rubber layer is connected to the outer side of the fluorocarbon rubber layer with PP adhesive. This utility model provides a first protective layer, in which the alumina fiber layer provides a first layer of wear-resistant protection for the fire hose body, and the silicon carbide fiber layer provides a second layer of wear-resistant protection for the fire hose body after the alumina fiber layer is damaged.

Description

Technical Field

[0001] This utility model relates to the field of fire hose technology, specifically to a fire hose with good wear resistance. Background Technology

[0002] Fire hoses are flexible tubes used to transport high-pressure water or flame-retardant liquids such as foam. Traditional fire hoses have a rubber inner lining and an outer surface wrapped with flax woven fabric. Advanced fire hoses are made of polymer materials such as polyurethane. Both ends of the fire hose have metal joints, which can be connected to another hose to extend the distance or to a nozzle to increase the liquid spray pressure. However, existing fire hoses lack wear-resistant protection mechanisms, resulting in poor overall wear resistance and reduced service life. Therefore, we propose a fire hose with good wear resistance. Utility Model Content

[0003] The purpose of this invention is to provide a fire hose with good wear resistance to solve the problems mentioned in the background art.

[0004] To achieve the above objectives, the present invention provides the following technical solution: a fire hose with good wear resistance, comprising a fire hose body, wherein the fire hose body comprises a polyurethane base layer, and a plurality of equally spaced stainless steel wires are provided on the inner surface of the polyurethane base layer, a second protective layer is provided on the outer side of the polyurethane base layer, and a first protective layer is provided on the outer side of the second protective layer.

[0005] Preferably, the second protective layer comprises a fluorocarbon rubber layer and a EPDM rubber layer, and the first protective layer comprises a silicon carbide fiber layer and an alumina fiber layer.

[0006] Preferably, the fluorocarbon rubber layer is connected to the outside of the polyurethane substrate layer by PP adhesive, and the EPDM rubber layer is connected to the outside of the fluorocarbon rubber layer by PP adhesive.

[0007] Preferably, the silicon carbide fiber layer is connected to the outside of the EPDM rubber layer by PP adhesive, and the alumina fiber layer is connected to the outside of the silicon carbide fiber layer by PP adhesive.

[0008] Preferably, the fluorocarbon rubber layer and the EPDM rubber layer have the same thickness, and the silicon carbide fiber layer and the alumina fiber layer have the same thickness.

[0009] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0010] 1. This utility model is provided with a first protective layer, which includes an alumina fiber layer that can provide a first layer of wear-resistant protection for the fire hose body, and a silicon carbide fiber layer that can provide a second layer of wear-resistant protection for the fire hose body after the alumina fiber layer is damaged.

[0011] 2. This utility model is provided with a second protective layer, which includes an EPDM rubber layer that can provide a third layer of wear-resistant protection to the fire hose body after the silicon carbide fiber layer is damaged, and a fluorocarbon rubber layer that can provide a fourth layer of wear-resistant protection to the fire hose body after the EPDM rubber layer is damaged. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the structure of this utility model;

[0013] Figure 2 This is a schematic diagram of the second protective layer structure of this utility model;

[0014] Figure 3 This is a schematic diagram of the first protective layer structure of this utility model.

[0015] In the diagram: Fire hose body 1, polyurethane base layer 11, stainless steel wire 12, second protective layer 13, fluorocarbon rubber layer 131, EPDM rubber layer 132, first protective layer 14, silicon carbide fiber layer 141, alumina fiber layer 142. Detailed Implementation

[0016] 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.

[0017] The components of this application, including the fire hose body 1, polyurethane base layer 11, stainless steel wire 12, second protective layer 13, fluorocarbon rubber layer 131, EPDM rubber layer 132, first protective layer 14, silicon carbide fiber layer 141, and alumina fiber layer 142, are all general standard parts or parts known to those skilled in the art. Their structure and principles can be learned by those skilled in the art through technical manuals or conventional experimental methods.

[0018] Example 1:

[0019] Please see Figures 1-3The following technical solution is provided, specifically disclosed: A fire hose body 1 is provided, comprising a polyurethane base layer 11, with multiple equidistantly distributed stainless steel wires 12 on the inner surface of the polyurethane base layer 11. A second protective layer 13 is provided on the outer side of the polyurethane base layer 11, and a first protective layer 14 is provided on the outer side of the second protective layer 13. The first protective layer 14 includes an alumina fiber layer 142 that provides a first layer of wear-resistant protection for the fire hose body 1, and a silicon carbide fiber layer 141 that provides a second layer of wear-resistant protection for the fire hose body 1 after the alumina fiber layer 142 is damaged. The second protective layer 13 includes an EPDM rubber layer 132 that provides a third layer of wear-resistant protection for the fire hose body 1 after the silicon carbide fiber layer 141 is damaged, and a fluorocarbon rubber layer 131 that provides a fourth layer of wear-resistant protection for the fire hose body 1 after the EPDM rubber layer 132 is damaged.

[0020] Example 2:

[0021] Please see Figure 2 and Figure 3 The following technical solution is provided, specifically disclosed: the second protective layer 13 includes a fluorocarbon rubber layer 131 and a EPDM rubber layer 132, and the first protective layer 14 includes a silicon carbide fiber layer 141 and an alumina fiber layer 142. The fluorocarbon rubber layer 131 is connected to the outside of the polyurethane base layer 11 by PP adhesive, and the EPDM rubber layer 132 is connected to the outside of the fluorocarbon rubber layer 131 by PP adhesive. The silicon carbide fiber layer 141 is connected to the outside of the EPDM rubber layer 132 by PP adhesive, and the alumina fiber layer 142 is connected to the outside of the silicon carbide fiber layer 141 by PP adhesive. The fluorocarbon rubber layer 131 and the EPDM rubber layer 132 have the same thickness, and the silicon carbide fiber layer 141 and the alumina fiber layer 142 have the same thickness.

[0022] The working principle of this application is as follows: A first protective layer 14 is provided, which includes an alumina fiber layer 142 that can provide a first layer of wear-resistant protection for the fire hose body 1, and a silicon carbide fiber layer 141 that can provide a second layer of wear-resistant protection for the fire hose body 1 after the alumina fiber layer 142 is damaged. A second protective layer 13 is provided, which includes an EPDM rubber layer 132 that can provide a third layer of wear-resistant protection for the fire hose body 1 after the silicon carbide fiber layer 141 is damaged, and a fluorocarbon rubber layer 131 that can provide a fourth layer of wear-resistant protection for the fire hose body 1 after the EPDM rubber layer 132 is damaged.

[0023] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art 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 appended claims and their equivalents.

Claims

1. A fire hose with good wear resistance, comprising a fire hose body (1), characterized in that: The fire hose body (1) includes a polyurethane base layer (11), and a plurality of equally spaced stainless steel wires (12) are provided on the inner surface of the polyurethane base layer (11). A second protective layer (13) is provided on the outer side of the polyurethane base layer (11), and a first protective layer (14) is provided on the outer side of the second protective layer (13). The second protective layer (13) includes a fluorocarbon rubber layer (131) and a EPDM rubber layer (132), and the first protective layer (14) includes a silicon carbide fiber layer (141) and an alumina fiber layer (142).

2. The fire hose with good wear resistance according to claim 1, characterized in that: The fluorocarbon rubber layer (131) is connected to the outside of the polyurethane base layer (11) by PP glue, and the EPDM rubber layer (132) is connected to the outside of the fluorocarbon rubber layer (131) by PP glue.

3. The fire hose with good wear resistance according to claim 1, characterized in that: The silicon carbide fiber layer (141) is connected to the outside of the EPDM rubber layer (132) by PP glue, and the alumina fiber layer (142) is connected to the outside of the silicon carbide fiber layer (141) by PP glue.

4. The fire hose with good wear resistance according to claim 1, characterized in that: The fluorocarbon rubber layer (131) and the EPDM rubber layer (132) have the same thickness, and the silicon carbide fiber layer (141) and the alumina fiber layer (142) have the same thickness.

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