High-pressure-resistant leakage-proof fire hose

Abstract

The utility model provides a high pressure resistant leakproof fire hose, including outer sheath and inner sheath, outer sheath includes wearing layer, elastic layer and reinforcing layer, elastic layer is provided in wearing layer inner side, reinforcing layer is provided in elastic layer inner side, the outside of elastic layer is provided with a plurality of equidistant vertical groove, and the inside of elastic layer is provided with the vertical groove. A spiral groove is formed in the inner side of the elastic layer, a protruding strip is arranged on the inner side of the wear-resisting layer, the protruding strip and the vertical groove are embedded, a spiral strip is arranged on the outer side of the reinforcing layer, and the spiral strip and the spiral groove are embedded. According to the high-pressure-resistant leakage-proof fire hose, the protruding strips are matched with the vertical grooves, and the spiral grooves are matched with the spiral strips, so that sliding and loosening among the layers of the outer protection layer are effectively avoided, and the service life is prolonged.

Description

Technical Field

[0001] This utility model relates to the field of fire hose technology, specifically a high-pressure resistant and leak-proof fire hose. 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 are covered with flax woven fabric on the outer surface. Advanced fire hoses are made of polymer materials such as polyurethane. After long-term use, water leakage will occur, making the fire hose unusable and greatly reducing its practicality. In particular, after a certain amount of use, the outer protective layers may loosen and shift, resulting in a significant reduction in its protective performance.

[0003] This case arose in order to resolve the aforementioned issues. Utility Model Content

[0004] (a) Technical problems to be solved

[0005] The purpose of this utility model is to provide a high-pressure resistant and leak-proof fire hose to solve the problems mentioned in the background art.

[0006] (II) Technical Solution

[0007] To achieve the above objectives, this utility model provides the following technical solution: a high-pressure leak-proof fire hose, comprising an outer protective layer and an inner protective layer. The outer protective layer comprises a wear-resistant layer, an elastic layer, and a reinforcing layer. The elastic layer is disposed inside the wear-resistant layer, and the reinforcing layer is disposed inside the elastic layer. The outer side of the elastic layer has several equally spaced vertical grooves, and the inner side of the elastic layer has a spiral groove. The inner side of the wear-resistant layer has a protruding strip, which is fitted into the vertical grooves. The outer side of the reinforcing layer has a spiral strip, which is fitted into the spiral groove.

[0008] Preferably, a metal mesh is provided between the wear-resistant layer and the elastic layer, and between the elastic layer and the reinforcing layer.

[0009] Preferably, the raised strip is made of flax woven strip and is woven together with the outer abrasion-resistant layer.

[0010] Preferably, the spiral strip is made of aluminum foil fiber, the reinforcing layer is fire-resistant fiber, and the spiral strip and the reinforcing layer are woven together.

[0011] Preferably, the inner protective layer is a waterproof and corrosion-resistant layer, and a metal wire mesh is provided between the outer protective layer and the inner protective layer.

[0012] (III) Beneficial Effects

[0013] After adopting the above technical solution, this utility model has the following advantages compared with the prior art: The high-pressure leak-proof fire hose of this utility model has a combination of convex strips and vertical grooves, and a combination of spiral grooves and spiral strips between each layer of the outer protective layer, which effectively avoids the slippage and loosening between the layers of the outer protective layer and extends the service life. Attached Figure Description

[0014] Figure 1 This is a cross-sectional view of the present invention;

[0015] Figure 2 This is a schematic diagram of the outer protective layer structure;

[0016] Figure 3 This is a schematic diagram showing the separation of the outer protective layer layers;

[0017] In the diagram: 1 Outer protective layer, 11 Wear-resistant layer, 111 Raised strip, 12 Elastic layer, 121 Vertical groove, 122 Spiral groove, 13 Reinforcing layer, 131 Spiral strip, 2 Inner protective layer. Detailed Implementation

[0018] The present invention will be further described in detail below with reference to the accompanying drawings and embodiments.

[0019] This utility model embodiment provides a high-pressure resistant and leak-proof fire hose, such as Figure 1-3 As shown, the outer protective layer 1 includes an outer protective layer 1 and an inner protective layer 2. The outer protective layer 1 includes a wear-resistant layer 11, an elastic layer 12, and a reinforcing layer 13. The elastic layer 12 is disposed inside the wear-resistant layer 11, and the reinforcing layer 13 is disposed inside the elastic layer 12. The outer side of the elastic layer 12 has several equally spaced vertical grooves 121, and the inner side of the elastic layer 12 has spiral grooves 122. The inner side of the wear-resistant layer 11 has protrusions 111, which are engaged with the vertical grooves 121. The outer side of the reinforcing layer 13 has spiral strips 131, which are engaged with the spiral grooves 122. The cooperation between the layers through the protrusions 111 and the vertical grooves 121, and the cooperation between the spiral strips 131 and the spiral grooves 122, effectively prevents the slippage and loosening between the layers of the outer protective layer 1.

[0020] It should be noted that metal wire mesh is provided between the wear-resistant layer 11 and the elastic layer 12, and between the elastic layer 12 and the reinforcing layer 13. The inner protective layer 2 is a waterproof and corrosion-resistant layer, and metal wire mesh is provided between the outer protective layer 1 and the inner protective layer 2. The installation of metal wire mesh between each layer effectively improves the strength of the fire hose itself.

[0021] It should be noted that the raised strip 111 is made of flax woven strips and is woven together with the outer abrasion-resistant layer 11. The spiral strip 131 is made of aluminum foil fiber, and the reinforcing layer is fire-resistant fiber. The spiral strip 131 is woven together with the reinforcing layer 13. Through the combination and weaving, a pseudo-fusion is formed between the layers, with distinct layers yet connected as a whole, ensuring strength.

[0022] This utility model discloses a high-pressure leak-proof fire hose, which features a combination of raised strips and vertical grooves, as well as a combination of spiral grooves and spiral strips, between the layers of the outer protective layer. This effectively prevents slippage and loosening between the layers of the outer protective layer and extends its service life.

[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 variations 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 high-pressure resistant and leak-proof fire hose, comprising an outer protective layer (1) and an inner protective layer (2), characterized in that: The outer protective layer (1) includes a wear-resistant layer (11), an elastic layer (12), and a reinforcing layer (13). The elastic layer (12) is disposed inside the wear-resistant layer (11), and the reinforcing layer (13) is disposed inside the elastic layer (12). The outer side of the elastic layer (12) is provided with a plurality of equally spaced vertical grooves (121). The inner side of the elastic layer (12) is provided with a spiral groove (122). The inner side of the wear-resistant layer (11) is provided with a protrusion (111), which is fitted with the vertical groove (121). The outer side of the reinforcing layer (13) is provided with a spiral strip (131), which is fitted with the spiral groove (122).

2. The high-pressure resistant and leak-proof fire hose according to claim 1, characterized in that: Metal mesh is provided between the wear-resistant layer (11) and the elastic layer (12), and between the elastic layer (12) and the reinforcing layer (13).

3. The high-pressure resistant and leak-proof fire hose according to claim 1, characterized in that: The raised strip (111) is made of flax woven strips and is woven together with the outer abrasion layer (11).

4. The high-pressure resistant and leak-proof fire hose according to claim 1, characterized in that: The spiral strip (131) is made of aluminum foil fiber, the reinforcing layer is fire-resistant fiber, and the spiral strip (131) and the reinforcing layer (13) are woven together.

5. The high-pressure resistant and leak-proof fire hose according to claim 1, characterized in that: The inner protective layer (2) is a waterproof and corrosion-resistant layer, and a metal wire mesh is provided between the outer protective layer (1) and the inner protective layer (2).

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