High-pressure resistant composite fuel hose

Abstract

The utility model provides a kind of high-pressure-resistant composite fuel hose, including hose main body, hose main body includes inner rubber layer, the inside of inner rubber layer is equipped with flame-retardant layer, anticorrosive layer in proper order, the outside of inner rubber layer is equipped with elastic layer, middle rubber layer, the outside of middle rubber layer is equipped with braided layer, the outside of braided layer is equipped with outer rubber layer, the outside of outer rubber layer is equipped with wear layer;Outer rubber layer part enters braided layer;The both ends of hose main body are equipped with connector.The fuel hose provided in the application, the structure design can not only ensure that the hose has good tensile resistance, bending resistance, explosion resistance and wear resistance, and the structure design of anticorrosive layer improves the corrosion resistance of the hose when conveying corrosive substances;In addition, the structure design of the both ends connector of hose main body not only ensures that the hose end has good dustproof ability, but also facilitates the sealed connection of hose main body and other components.

Description

Technical Field

[0001] This utility model belongs to the field of hose technology, specifically relating to a high-pressure resistant composite fuel hose. Background Technology

[0002] Rubber hoses are a type of tubular rubber product used to transport gases, liquids, slurries, or granular materials. They are used in many areas of daily life and production. Common types of hoses, categorized by their operating conditions, include water hoses, hot water hoses, steam hoses, marine hoses, food and beverage hoses, air hoses, welded hoses, gas hoses, ventilation hoses, material hoses, oil hoses, chemical hoses, high-pressure hoses, and so on.

[0003] The existing fuel hoses are not very corrosion-resistant or heat-resistant, making them prone to breakage and affecting normal use. Furthermore, the connection points are not properly isolated and dustproofed when connecting them to external pipelines, making them inconvenient to use. To address these issues, the existing equipment needs to be improved.

[0004] To address these issues, we propose a new high-pressure resistant composite fuel hose. Summary of the Invention

[0005] The purpose of this invention is to address the shortcomings of existing technologies by providing a new high-pressure resistant composite fuel hose, the specific solution of which is as follows: A high-pressure resistant composite fuel hose includes a hose body, which includes an inner rubber layer. Inside the inner rubber layer, a flame-retardant layer and an anti-corrosion layer are sequentially arranged. Outside the inner rubber layer, an elastic layer and a middle rubber layer are sequentially arranged. Outside the middle rubber layer, a braided layer is arranged. Outside the braided layer, an outer rubber layer is arranged. Outside the outer rubber layer, a wear-resistant layer is arranged. The outer rubber layer partially enters the braided layer. Connectors are provided at both ends of the hose body.

[0006] Based on the above, the connector is provided with an annular groove for the hose body, and the inner wall of the connector is provided with threads.

[0007] Based on the above, the connector head is provided with a limiting groove, the bottom of the limiting groove is provided with multiple through holes that penetrate into the annular groove, the limiting groove is provided with a positioning plate, and the positioning plate is provided with multiple positioning teeth that penetrate into the through holes.

[0008] Based on the above, the inner wall of the middle adhesive layer is provided with multiple slots along the circumferential direction, and the elastic layer portion enters the slots and leaves a cavity in the slots.

[0009] Based on the above, the inner rubber layer, middle rubber layer, and outer rubber layer are made of butyl rubber or styrene-butadiene rubber.

[0010] Based on the above, the flame-retardant layer is made of silicone rubber or fluororubber.

[0011] Based on the above, the anti-corrosion layer is an epoxy resin coating.

[0012] Based on the above, the material of the elastic layer is TPU.

[0013] Based on the above, the braided layer is made of metal wires.

[0014] This utility model has substantial features and progress compared to the prior art. Specifically, this utility model has the following advantages: The fuel hose provided in this application has a structural design that not only ensures that the hose has good tensile strength, bending strength, burst resistance and wear resistance, but also improves the corrosion resistance of the hose when transporting corrosive substances. In addition, the structural design of the connectors at both ends of the hose body not only ensures that the hose ends have good dustproof capability, but also facilitates the sealing connection of the hose body with other components. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall structure of this utility model.

[0016] Figure 2 yes Figure 1 Schematic diagram of the structure at point A in the middle.

[0017] Figure 3 yes Figure 1 Schematic diagram of the structure at point B.

[0018] In the diagram: 1. Tube body; 2. Inner rubber layer; 3. Elastic layer; 4. Flame retardant layer; 5. Anti-corrosion layer; 6. Middle rubber layer; 7. Braided layer; 8. Outer rubber layer; 9. Wear-resistant layer; 10. Cavity; 11. Connector; 11-1. Annular groove; 12. Positioning plate; 12-1. Positioning teeth. Detailed Implementation

[0019] The technical solution of this utility model will be further described in detail below through specific embodiments. Example

[0020] like Figure 1-3 As shown, this utility model provides a high-pressure resistant composite fuel hose, including a hose body 1. The hose body 1 includes an inner rubber layer 2. Inside the inner rubber layer 2, a flame-retardant layer 4 and an anti-corrosion layer 5 are sequentially provided. Outside the inner rubber layer 2, an elastic layer 3 and a middle rubber layer 6 are sequentially provided. Outside the middle rubber layer 6, a braided layer 7 is provided. Outside the braided layer 7, an outer rubber layer 8 is provided. Outside the outer rubber layer 8, a wear-resistant layer 9 is provided. The outer rubber layer 8 partially enters the braided layer 7. Connectors 11 are provided at both ends of the hose body 1.

[0021] The connector 11 is provided with an annular groove 11-1 for the hose body 1, and the inner wall of the connector 11 is provided with threads.

[0022] The connector 11 is provided with a limiting groove, and the bottom of the limiting groove is provided with multiple through holes that penetrate into the annular groove 11-1. The limiting groove is provided with a positioning plate 12, and the positioning plate 12 is provided with multiple positioning teeth 12-1 that penetrate into the through holes.

[0023] During the fuel delivery process, considering the possibility of sudden pressure changes, in order to improve the buffering capacity of the hose body 1, the inner wall of the above-mentioned middle rubber layer 6 is provided with multiple grooves along the circumference. The elastic layer 3 partially enters the grooves and leaves a cavity 10 inside the grooves.

[0024] To ensure the high temperature resistance, corrosion resistance and aging resistance of the hose body 1, the inner rubber layer 2, the middle rubber layer 6 and the outer rubber layer 8 are made of butyl rubber or styrene-butadiene rubber.

[0025] To ensure the flame-retardant performance of the hose body 1, the flame-retardant layer 4 is made of silicone rubber or fluororubber.

[0026] The aforementioned anti-corrosion layer 5 is an epoxy resin coating with a certain degree of elasticity.

[0027] Considering that the oil pressure may be unstable when the hose is transporting fuel, TPU is used as the material for the elastic layer 3 to prevent the hose from bursting.

[0028] To improve the tensile strength of the hose, the braided layer 7 is made of metal wire, and the structural design of the braided layer 7 also has good static conductivity.

[0029] The fuel hose provided in this application has a structural design that not only ensures that the hose has good tensile strength, bending strength, burst resistance and wear resistance, but also improves the corrosion resistance of the hose when transporting corrosive substances. In addition, the structural design of the connectors 11 at both ends of the hose body 1 not only ensures that the hose ends have good dustproof capability, but also facilitates the sealing connection of the hose body 1 with other components.

[0030] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of this utility model and not to limit it; although the utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications can still be made to the specific implementation of this utility model or equivalent substitutions can be made to some technical features without departing from the spirit of the technical solution of this utility model, and all such modifications and substitutions should be covered within the scope of the technical solution claimed by this utility model.

Claims

1. A high-pressure resistant composite fuel hose, characterized in that: The system includes a hose body (1), which includes an inner rubber layer (2). Inside the inner rubber layer (2), a flame-retardant layer (4) and an anti-corrosion layer (5) are sequentially arranged. Outside the inner rubber layer (2), an elastic layer (3) and a middle rubber layer (6) are sequentially arranged. Outside the middle rubber layer (6), a braided layer (7) is arranged. Outside the braided layer (7), an outer rubber layer (8) is arranged. Outside the outer rubber layer (8), a wear-resistant layer (9) is arranged. Part of the outer rubber layer (8) extends into the braided layer (7). Connectors (11) are provided at both ends of the hose body (1). The head (11) is provided with an annular groove (11-1) for the main body (1) of the hose, and the inner wall of the connector (11) is provided with threads; the connector (11) is provided with a limiting groove, and the bottom of the limiting groove is provided with multiple through holes that penetrate into the annular groove (11-1), and the limiting groove is provided with a positioning plate (12), and the positioning plate (12) is provided with multiple positioning teeth (12-1) that penetrate into the through holes; the inner wall of the middle rubber layer (6) is provided with multiple slots along the circumference, and part of the elastic layer (3) enters the slots and a cavity (10) is left in the slots.

2. The high-pressure resistant composite fuel hose according to claim 1, characterized in that: The inner rubber layer (2), middle rubber layer (6), and outer rubber layer (8) are made of butyl rubber or styrene-butadiene rubber.

3. The high-pressure resistant composite fuel hose according to claim 1, characterized in that: The flame-retardant layer (4) is made of silicone rubber or fluororubber.

4. The high-pressure resistant composite fuel hose according to claim 1, characterized in that: The anti-corrosion layer (5) is an epoxy resin coating.

5. The high-pressure resistant composite fuel hose according to claim 1, characterized in that: The elastic layer (3) is made of TPU.

6. The high-pressure resistant composite fuel hose according to claim 1, characterized in that: The braided layer (7) is made of metal wire.

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