High-pressure-resistant leakproof fire hose

Abstract

The utility model discloses a high-pressure-resistant leakproof fire hose which comprises a fire hose body and a metal connector, the fire hose body is a three-layer structural soft layer, the outermost layer is a first polymer layer, the second layer is an inner rubber layer, the innermost layer is a rubber pipe layer, and a plurality of fixing connectors are formed in the end face of the inner rubber layer in the circumferential direction. A limiting ring sleeve is fixedly connected to the outermost layer of the fire hose, a fixing ring sleeve is fixedly arranged at the end of the metal connector, and the size of the limiting ring sleeve is the same as that of the fixing ring sleeve. According to the high-pressure-resistant leakproof fire hose, the fire hose is composed of three structural soft layers, the inner side wall of the innermost layer is made of a hydrolysis-resistant thermoplastic polyurethane material, so that the fire hose can better bear erosion of large-impulse water flow, and the fire hose is made of ultra-high molecular weight polyethylene from the inner side wall to the outer side in sequence, so that the fire hose is more resistant to high pressure; the connector at the end of the fire hose and the limiting ring sleeve on the connector are matched with the connector and the fixing ring sleeve at the end of the metal connector, so that firmer and tighter connection of the connector and the fixing ring sleeve is achieved, and connection looseness of the connector and the fixing ring sleeve under high-pressure water flow is effectively prevented.

Description

TECHNICAL FIELD

[0001] The utility model relates to fire hose technical field, concretely is a kind of high-pressure resistant leakproof fire hose. BACKGROUND

[0002] Fire is to eliminate hidden danger, prevent disaster, and one of the important meanings of fire is to prevent fire, and the main purpose is to reduce the damage caused by fire, reduce personnel casualties and property losses, in the fire-fighting work, a variety of fire-fighting appliances are used, including fire extinguisher, water gun, fire pump, and on the basis of liquid fire extinguishing, fire hose is used.

[0003] Fire hose is used to transport high-pressure water or foam and other fire-retardant liquid hose, traditional fire hose is lined with rubber, and the outer surface is wrapped with linen braid, and more advanced fire hose is made of polyurethane and other polymer materials. Fire hose needs to be high-pressure pumped to high position with high-pressure water or foam and other fire-retardant liquid, and the internal and connected metal joint needs to bear a lot of pressure, and the outer surface needs to be rubbed with building or ground, so the wear resistance of outer material is also very high, especially for long length, the wear resistance of fire hose used in high-rise building is higher.

[0004] In order to solve the above problems, the case is born. INVENTION CONTENTS

[0005] (I) technical problem solved

[0006] In view of the deficiencies of prior art, the utility model provides a kind of high-pressure resistant leakproof fire hose, solve the problems raised in the above background art.

[0007] (II) technical scheme

[0008] To achieve the above purpose, the utility model is realized by the following technical scheme: a kind of high-pressure resistant leakproof fire hose, including fire hose, metal joint, the fire hose is three-layer structure soft layer, the outermost layer is first polymer layer, the second layer is inner rubber layer, the innermost layer is rubber tube layer, the inner rubber layer end surface is circumferentially provided with a plurality of fixed interfaces, the outermost layer of the fire hose is fixedly connected with limit ring sleeve, the metal joint end is fixedly provided with fixed ring sleeve, the limit ring sleeve is the same size as fixed ring sleeve.

[0009] Preferably, the limit ring sleeve is circumferentially fixed with fixed block, each fixed block is rotatably connected with fixed head, the fixed block is outwardly extended, and the opening of the fixed head faces inward.

[0010] Preferably, the metal joint end is provided with a connecting column, the connecting column is provided with external threads, and the metal joint end is circumferentially provided with a plurality of connecting heads, the connecting heads are located at positions corresponding to the fixed interface positions and have the same size.

[0011] Preferably, the rubber tube layer is provided with internal threads, and the internal threads are matched with the external threads on the connecting column.

[0012] Preferably, the rubber tube layer has a double-layer structure, and an inner wall of an inner layer in contact with water is made of hydrolysis-resistant thermoplastic polyurethane.

[0013] (Three) beneficial effects

[0014] Compared with the prior art, the utility model has the following advantages: the utility model discloses a high-pressure-resistant and leakage-proof fire-fighting water hose, the fire-fighting water hose is composed of a three-layer structure soft layer, the inner wall of the innermost layer is made of hydrolysis-resistant thermoplastic polyurethane material, so that it can better withstand the erosion of large-impulse water flow, and the outer layers are made of ultrahigh molecular weight polyethylene, so that it can resist high pressure better, the interface at the end of the fire-fighting water hose and the limiting ring sleeve cooperate with the connecting head and the fixed ring sleeve at the end of the metal joint, so that the two are connected more firmly and tightly, and the loosening of the connection under high-pressure water flow is effectively prevented. BRIEF DESCRIPTION OF DRAWINGS

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

[0016] Figure 2 It is a side view schematic view of the utility model;

[0017] Figure 3 It is a metal joint face schematic view of the utility model;

[0018] Figure 4 It is a water hose joint face schematic view of the utility model.

[0019] In the drawing: 1, fire-fighting water hose; 2, metal joint; 3, fixed ring sleeve; 4, limiting ring sleeve; 5, fixed block; 6, fixed head; 7, fixed interface; 8, connecting column; 9, connecting head; 10, first polymer layer; 11, inner rubber layer. DETAILED DESCRIPTION

[0020] The utility model will be further described in detail below through the drawings and examples.

[0021] As Figures 1-4The application discloses a high-pressure-resistant and leakage-proof fire hose, which comprises a fire hose 1 and a metal connector 2, wherein the fire hose 1 is a three-layer structure, the outermost layer is a first polymer layer 10, the polymer layer 10 is made of high-wear-resistant thermoplastic material, the strength and pressure resistance of the fire hose 1 are improved, the outermost layer of the polymer layer is wrapped with wear-resistant TPU material, the damage of the fire hose 1 caused by friction with a building or the ground is effectively prevented, and the service life of the fire hose 1 is prolonged, the second layer is an inner rubber layer 11, and the innermost layer is a rubber tube layer, a plurality of fixed interfaces 7 are arranged on the end surface of the inner rubber layer 11 in a circumferential direction, the outermost layer of the fire hose 1 is fixedly connected with a limiting ring sleeve 4, the end portion of the metal connector 2 is fixedly provided with a fixed ring sleeve 3, the limiting ring sleeve 4 and the fixed ring sleeve 3 are of the same size, and the length of a fixed head 6 is greater than that of the fixed ring sleeve 3.

[0022] The limiting ring sleeve 4 is fixedly provided with a fixed block 5 in the circumferential direction, each fixed block 5 is rotationally connected with the fixed head 6, the fixed block 5 extends outward, the opening of the fixed head 6 faces inward, the fixed head 6 is rotationally connected with the fixed block 5, when the metal connector 2 and the fire hose 1 are fixedly connected, the fixed head 6 is rotated outward, when the fixed ring sleeve 3 is attached to the limiting ring sleeve 4, the fixed head 6 is loosened, the end portion of the fixed head 6 is clamped on the fixed ring sleeve 3, the fixed connection between the metal connector 2 and the fire hose 1 is further realized from the outside, and the loosening between the metal connector 2 and the fire hose 1 is effectively prevented.

[0023] The end portion of the metal connector 2 is provided with a connecting column 8, the connecting column 8 is provided with external threads, and the end portion of the metal connector 2 is provided with a plurality of connecting heads 9 in the circumferential direction, the positions of the connecting heads 9 correspond to the positions of the fixed interfaces 7 and are of the same size.

[0024] The rubber tube layer is provided with internal threads, the internal threads are matched with the external threads on the connecting column 8, the connecting column 8 of the metal connector 2 and the internal threads of the rubber tube layer are rotationally connected and fixed, and when the connection is completed, the connecting heads 9 are partially inserted into the fixed interfaces 7, and the fixed connection of the two is further realized.

[0025] The rubber tube layer is of a double-layer structure, the inner wall of the inner layer in contact with water is made of hydrolysis-resistant thermoplastic polyurethane, and the side adhered to the inner rubber layer 11 is made of first low-melting-point thermoplastic polyurethane with a melting point of 90-120 DEG C, so that the strength of the rubber tube layer as a whole is improved, and the rubber tube layer is prevented from being broken by the impact force and pressure of high-flow water.

[0026] The above-mentioned embodiments are only used as an inspiration, and related personnel can make various changes and modifications without deviating from the scope of the present application. The scope of the present application is not limited to the contents in the specification, and the scope of protection must be determined according to the scope of claims.

Claims

1. A high-pressure resistant and leakage-proof fire hose comprising a fire hose (1), a metal coupling (2), characterized in that: The fire hose (1) is a three-layer structure soft layer, the outermost layer is a first polymer layer (10), the second layer is an inner rubber layer (11), and the innermost layer is a rubber tube layer, a plurality of fixed interfaces (7) are arranged on the end surface of the inner rubber layer (11) in a circumferential direction, a limiting ring sleeve (4) is fixedly connected to the outermost layer of the fire hose (1), a fixed ring sleeve (3) is fixedly arranged at the end of the metal connector (2), and the limiting ring sleeve (4) has the same size as the fixed ring sleeve (3).

2. The high-pressure resistant and leakage-proof fire hose according to claim 1, characterized in that: A fixed block (5) is fixedly arranged on the limiting ring sleeve (4) in a circumferential direction, each fixed block (5) is rotatably connected with a fixed head (6), the fixed block (5) extends outward, and the opening of the fixed head (6) faces inward.

3. The high-pressure resistant and leakage-proof fire hose according to claim 1, characterized in that: A connecting column (8) is arranged at the end of the metal connector (2), the connecting column (8) is provided with external threads, a plurality of connecting heads (9) are arranged on the end of the metal connector (2) in a circumferential direction, the positions of the connecting heads (9) correspond to the positions of the fixed interfaces (7) and have the same size.

4. The high-pressure resistant and leakage-proof fire hose according to claim 1, characterized in that: The rubber tube layer is provided with internal threads, and the internal threads are matched with the external threads of the connecting column (8).

5. The high-pressure resistant and leakage-proof fire hose according to claim 1, characterized in that: The rubber tube layer has a double-layer structure, and the inner wall of the inner layer in contact with water is made of hydrolysis-resistant thermoplastic polyurethane.

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