Compression-resistant and leakage-proof fire hose

Abstract

The utility model discloses a compression-resistant leakproof fire hose which comprises a fire hose body, the fire hose body comprises a polyurethane rubber layer, a plurality of stainless steel bands distributed at equal intervals are arranged in an inner cavity of the polyurethane rubber layer, and an outer protection layer is arranged on the outer side of the polyurethane rubber layer. According to the fire hose, the polyurethane rubber layer is arranged so that the whole fire hose can have high pressure resistance, the stainless steel bands distributed at equal intervals are arranged so that the pressure resistance of the whole fire hose can be effectively improved, the outer protection layer is arranged, the aluminum oxide coating contained in the outer protection layer can improve the abrasion resistance of the outer side of the fire hose, and the service life of the outer protection layer is prolonged. The hafnium oxide coating can improve the fire resistance of the outer side of the fire hose after the aluminum oxide coating is damaged, the inner protection layer is arranged, the silicon nitride coating contained in the inner protection layer can improve the smoothness of the inner side of the fire hose, and the chlorosulfonated polyethylene coating can improve the corrosion resistance of the inner side of the fire hose after the silicon nitride coating is damaged.

Description

Technical Field

[0001] The utility model relates to the technical field of fire hoses, in particular to a pressure-resistant and leak-proof 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 on 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 injection pressure. However, the overall pressure resistance and overall strength of existing fire hoses are poor, which makes them easy to leak during use, thus bringing inconvenience to people's use. Utility Model Content

[0003] The purpose of the utility model is to provide a pressure-resistant and leak-proof fire hose to solve the problems raised in the above-mentioned background technology.

[0004] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a pressure-resistant and leak-proof fire hose, comprising a fire hose body, the fire hose body comprising a polyurethane rubber layer, and the inner cavity of the polyurethane rubber layer is provided with a plurality of equally spaced stainless steel belts, an outer side of the polyurethane rubber layer is provided with an outer protective layer, and the outer protective layer comprises a hafnium dioxide coating and an aluminum oxide coating, an inner side of the polyurethane rubber layer is provided with an inner protective layer, and the inner protective layer comprises a silicon nitride coating and a chlorosulfonated polyethylene coating.

[0005] Preferably, the hafnium dioxide coating is coated on the outer side of the polyurethane rubber layer, and the aluminum oxide coating is coated on the outer side of the hafnium dioxide coating.

[0006] Preferably, the thickness of the hafnium dioxide coating and the aluminum oxide coating are the same, and the thickness of the aluminum oxide coating is three hundred to five hundred microns.

[0007] Preferably, the chlorosulfonated polyethylene coating is coated on the inner side of the polyurethane rubber layer, and the silicon nitride coating is coated on the inner side of the chlorosulfonated polyethylene coating.

[0008] Preferably, the silicon nitride coating and the chlorosulfonated polyethylene coating have the same thickness, and the thickness of the silicon nitride coating is 150 to 300 microns.

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

[0010] The utility model is provided with a polyurethane rubber layer, which can make the fire hose as a whole have a stronger pressure resistance; a plurality of equally spaced stainless steel belts are provided, which can effectively improve the pressure resistance of the fire hose as a whole; an outer protective layer is provided, and the aluminum oxide coating included therein can improve the wear resistance of the outer side of the fire hose; the hafnium dioxide coating can improve the fire resistance of the outer side of the fire hose after the aluminum oxide coating is damaged; an inner protective layer is provided, and the silicon nitride coating included therein can improve the smoothness of the inner side of the fire hose; the chlorosulfonated polyethylene coating can improve the corrosion resistance of the inner side of the fire hose after the silicon nitride coating is damaged, thereby effectively improving the service life of the fire hose as a whole. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 It is a schematic diagram of the structure of the utility model;

[0012] Figure 2 This is a schematic diagram of the structure of the outer protective layer of the utility model;

[0013] Figure 3 This is a schematic diagram of the inner protective layer structure of the utility model.

[0014] In the figure: a fire hose body 1, a polyurethane rubber layer 11, an outer protective layer 12, a hafnium dioxide coating 121, an aluminum oxide coating 122, a stainless steel belt 13, an inner protective layer 14, a silicon nitride coating 141, and a chlorosulfonated polyethylene coating 142. DETAILED DESCRIPTION

[0015] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0016] In the description of this application, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "provided with", "connected", etc. should be understood in a broad sense. For example, "connected" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0017] The fire hose body 1, polyurethane rubber layer 11, outer protective layer 12, hafnium dioxide coating 121, aluminum oxide coating 122, stainless steel belt 13, inner protective layer 14, silicon nitride coating 141 and chlorosulfonated polyethylene coating 142 components of the present application are all universal standard parts or components known to technical personnel in this field, and their structures and principles can be known to technical personnel through technical manuals or through conventional experimental methods.

[0018] See also Figure 1-Figure 3 A pressure-resistant and leak-proof fire hose comprises a fire hose body 1, the fire hose body 1 comprises a polyurethane rubber layer 11, which can make the fire hose as a whole have a strong pressure resistance, and the inner cavity of the polyurethane rubber layer 11 is provided with a plurality of equally distributed stainless steel belts 13, which can effectively improve the overall pressure resistance of the fire hose, and the outer side of the polyurethane rubber layer 11 is provided with an outer protective layer 12, and the outer protective layer 12 comprises a hafnium dioxide coating 121 and an aluminum oxide coating 122, and the aluminum oxide coating 122 can The wear resistance of the outer side of the fire hose is improved. The hafnium dioxide coating 121 can improve the fire resistance of the outer side of the fire hose after the aluminum oxide coating 122 is damaged. An inner protective layer 14 is provided on the inner side of the polyurethane rubber layer 11, and the inner protective layer 14 includes a silicon nitride coating 141 and a chlorosulfonated polyethylene coating 142. The silicon nitride coating 141 can improve the smoothness of the inner side of the fire hose. The chlorosulfonated polyethylene coating 142 can improve the corrosion resistance of the inner side of the fire hose after the silicon nitride coating 141 is damaged.

[0019] The hafnium dioxide coating 121 is coated on the outside of the polyurethane rubber layer 11, and the aluminum oxide coating 122 is coated on the outside of the hafnium dioxide coating 121. The thickness of the hafnium dioxide coating 121 and the aluminum oxide coating 122 are the same, and the thickness of the aluminum oxide coating 122 is three hundred to five hundred microns. The chlorosulfonated polyethylene coating 142 is coated on the inside of the polyurethane rubber layer 11, and the silicon nitride coating 141 is coated on the inside of the chlorosulfonated polyethylene coating 142. The thickness of the silicon nitride coating 141 and the chlorosulfonated polyethylene coating 142 are the same, and the thickness of the silicon nitride coating 141 is one hundred and fifty to three hundred microns.

[0020] When in use, a polyurethane rubber layer 11 is provided to make the fire hose as a whole have a stronger pressure resistance; a plurality of equally spaced stainless steel belts 13 are provided to effectively improve the pressure resistance of the fire hose as a whole; an outer protective layer 12 is provided, and the aluminum oxide coating 122 included therein can improve the wear resistance of the outer side of the fire hose; the hafnium dioxide coating 121 can improve the fire resistance of the outer side of the fire hose after the aluminum oxide coating 122 is damaged; an inner protective layer 14 is provided, and the silicon nitride coating 141 included therein can improve the smoothness of the inner side of the fire hose; the chlorosulfonated polyethylene coating 142 can improve the corrosion resistance of the inner side of the fire hose after the silicon nitride coating 141 is damaged, thereby effectively improving the service life of the fire hose as a whole.

[0021] Although the embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A pressure-resistant and leak-proof fire hose, comprising a fire hose body (1), characterized in that: The fire hose body (1) comprises a polyurethane rubber layer (11), and the inner cavity of the polyurethane rubber layer (11) is provided with a plurality of equally spaced stainless steel strips (13); an outer protective layer (12) is provided on the outer side of the polyurethane rubber layer (11), and the outer protective layer (12) comprises a hafnium dioxide coating (121) and an aluminum oxide coating (122); an inner protective layer (14) is provided on the inner side of the polyurethane rubber layer (11), and the inner protective layer (14) comprises a silicon nitride coating (141) and a chlorosulfonated polyethylene coating (142); the hafnium dioxide coating (121) is coated on the polyurethane rubber layer (11 ), and the aluminum oxide coating (122) is coated on the outside of the hafnium dioxide coating (121), the thickness of the hafnium dioxide coating (121) and the aluminum oxide coating (122) are the same, and the thickness of the aluminum oxide coating (122) is three hundred to five hundred microns, the chlorosulfonated polyethylene coating (142) is coated on the inside of the polyurethane rubber layer (11), and the silicon nitride coating (141) is coated on the inside of the chlorosulfonated polyethylene coating (142), the thickness of the silicon nitride coating (141) and the chlorosulfonated polyethylene coating (142) are the same, and the thickness of the silicon nitride coating (141) is one hundred and fifty to three hundred microns.

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