An oil-resistant high-pressure-resistant rubber tube assembly

Abstract

The utility model belongs to pipeline technical field especially relates to a kind of oil-resistant high-pressure-resistant rubber pipe assembly, including rubber tube body, the both ends of rubber tube body are fixedly installed with connector, the outer surface of rubber tube body is fixedly installed with protection mechanism, the inner surface of rubber tube body is fixedly installed with compression-resistant oil-resistant mechanism;The protection mechanism includes anti-puncture metal net, the inner surface of anti-puncture metal net is fixedly connected with the outer surface of rubber tube body, the outer surface of anti-puncture metal net is fixedly installed with rubber outer layer, the outer surface of rubber outer layer is fixedly installed with anticorrosive layer.The oil-resistant high-pressure-resistant rubber pipe assembly, when rubber pipe assembly is punctured, needle will first pass through rubber outer layer and then touch anti-puncture metal net, is blocked down by anti-puncture metal net, and anticorrosive layer can block down the liquid with corrosion rubber outside, while rubber pipe assembly inner fluid gasoline and so on, gasoline cannot corrode the No.1 rubber inner layer and No.2 rubber inner layer made of nitrile rubber.

Description

Technical Field

[0001] This utility model relates to the field of pipeline technology, and in particular to an oil-resistant and high-pressure-resistant rubber hose assembly. Background Technology

[0002] Rubber hose assemblies are a common auxiliary device in hydraulic systems. They consist of high-pressure steel wire braided or wound rubber hoses and steel fittings. The steel fittings are crimped onto both ends of the rubber hose using specialized equipment. They are used to connect various hydraulic components in the hydraulic system and are mainly used for hydraulic power transmission or conveying high-pressure media such as water, gas, and oil under operating temperatures ranging from -40℃ to +100℃, in order to ensure the circulation of liquids and the transmission of liquid energy.

[0003] Currently, rubber hose assemblies are typically used at high-pressure oil pipe connections, which presents the following problems in actual operation:

[0004] 1. The outer surface of the hose in the current hose assembly is easily corroded and damaged by the external environment. Corrosion and damage can lead to hose rupture, causing the steel wire inside the hose to rust and burst, resulting in leakage.

[0005] 2. Since there is usually only one layer of metal mesh tube inside the hose to resist high pressure, when the outside is punctured, it is easy for the metal mesh tube to be pierced into the hose, causing the high-pressure liquid inside the hose to leak out from the puncture site. Utility Model Content

[0006] In order to overcome the defects of the prior art mentioned above, the inventors conducted in-depth research and, after a great deal of creative work, completed this utility model.

[0007] Specifically, the technical problem to be solved by this utility model is to provide an oil-resistant and high-pressure-resistant rubber hose assembly to solve the technical problems that current rubber hose assemblies are not corrosion-resistant or puncture-resistant, and that when the rubber assembly is used in equipment for gasoline connection, the oil in it will soften, crack, split or embrittle the rubber, and at the same time the rubber will lose its original elasticity.

[0008] To solve the above-mentioned technical problems, the present invention provides the following technical solution:

[0009] An oil-resistant and high-pressure resistant rubber hose assembly includes a hose body, with connectors fixedly installed at both ends of the hose body, a protective mechanism fixedly installed on the outer surface of the hose body, and a pressure-resistant and oil-resistant mechanism fixedly installed on the inner surface of the hose body.

[0010] The protective mechanism includes a stab-proof metal mesh, the inner surface of which is fixedly connected to the outer surface of the hose body, a rubber outer layer is fixedly installed on the outer surface of the stab-proof metal mesh, and an anti-corrosion layer is fixedly installed on the outer surface of the rubber outer layer.

[0011] As an improved technical solution, the stab-resistant metal mesh is made of two layers of cross-woven metal mesh.

[0012] As an improved technical solution, the pressure-resistant and oil-resistant mechanism includes a first rubber inner layer, on the inner surface of which a supporting woven steel mesh is fixedly installed, and on the inner surface of which a second rubber inner layer is fixedly installed.

[0013] As an improved technical solution, the outer surface of the first rubber inner layer is fixedly connected to the inner surface of the hose body, and the supporting woven steel mesh is composed of several steel wires.

[0014] As an improved technical solution, the outer surface of the steel wire is fixedly coated with an anti-rust coating.

[0015] As an improved technical solution, the first and second rubber inner layers are made of nitrile rubber.

[0016] After adopting the above technical solution, the beneficial effects of this utility model are:

[0017] 1. This utility model improves the corrosion and puncture resistance of the rubber hose by adding a corrosion-resistant and anti-corrosion design. Through the combined use of the anti-puncture metal mesh and anti-corrosion layer with the outer rubber layer, the rubber hose assembly is made puncture-resistant and corrosion-resistant. This prevents the outer surface of the hose from being easily corroded and damaged by the external environment, which could lead to hose rupture and leakage due to rust on the internal steel wires. It also prevents external substances from easily penetrating the metal mesh and piercing the hose, causing high-pressure liquid inside the hose to leak out from the puncture point.

[0018] 2. This utility model improves the oil and high pressure resistance of the rubber hose assembly by adding a design that enhances its internal resistance. This is achieved through the combined use of the No. 1 and No. 2 rubber inner layers with the supporting woven steel mesh, and the combined use of the supporting woven steel mesh with steel wire and anti-rust coating. This prevents gasoline from corroding the rubber when it flows inside the rubber assembly, thus avoiding the problems of oil softening, cracking, splitting, or embrittlement of the rubber and causing it to lose its original elasticity. Attached Figure Description

[0019] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort. Among them:

[0020] Figure 1 This is a schematic diagram of the overall three-dimensional structure of the oil-resistant and high-pressure resistant rubber hose assembly of this utility model.

[0021] Figure 2 This is a schematic diagram of the exploded structure of the hose body, protective mechanism, and pressure-resistant and oil-resistant mechanism of the oil-resistant and high-pressure-resistant rubber hose assembly of this utility model.

[0022] Figure 3 This is a partial three-dimensional structural diagram of the supporting braided steel mesh of the oil-resistant and high-pressure-resistant rubber hose assembly of this utility model.

[0023] Figure 4 This is a schematic diagram of the explosive structure of the supporting braided steel mesh for the oil-resistant and high-pressure resistant rubber hose assembly of this utility model.

[0024] Figure 5 This is a schematic diagram of the puncture-resistant metal mesh structure of the oil-resistant and high-pressure-resistant rubber hose assembly of this utility model.

[0025] Explanation of reference numerals in the attached figures:

[0026] 1. Hose body; 2. Connector; 3. Protective mechanism; 31. Anti-stab metal mesh; 32. Rubber outer layer; 33. Anti-corrosion layer; 4. Pressure-resistant and oil-resistant mechanism; 41. No. 1 rubber inner layer; 42. Supporting braided steel mesh; 43. No. 2 rubber inner layer; 44. Steel wire; 45. Anti-rust coating. Detailed Implementation

[0027] 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.

[0028] It should be noted that all directional indicators (such as up, down, left, right, front, back, etc.) in this utility model embodiment are only used to explain the relative positional relationship and movement of each component in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indicator will also change accordingly.

[0029] Meanwhile, the meaning of "and / or" or "and / or" appearing throughout the text is that it includes three options. Taking "A and / or B" as an example, it includes option A, option B, or an option that satisfies both A and B.

[0030] Furthermore, in this utility model, descriptions involving "first," "second," etc., are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include at least one of that feature. Additionally, the technical solutions of the various embodiments can be combined with each other, but only on the basis of being achievable by those skilled in the art. When the combination of technical solutions is contradictory or impossible to implement, such a combination of technical solutions should be considered non-existent and not within the scope of protection claimed by this utility model.

[0031] like Figure 1 , Figure 2 and Figure 5 As shown in the figure, this embodiment provides an oil-resistant and high-pressure resistant rubber hose assembly, which includes a hose body 1, connectors 2 fixedly installed at both ends of the hose body 1, a protective mechanism 3 fixedly installed on the outer surface of the hose body 1, and a pressure-resistant and oil-resistant mechanism 4 fixedly installed on the inner surface of the hose body 1.

[0032] The protective mechanism 3 includes a stab-proof metal mesh 31. The inner surface of the stab-proof metal mesh 31 is fixedly connected to the outer surface of the hose body 1. A rubber outer layer 32 is fixedly installed on the outer surface of the stab-proof metal mesh 31. An anti-corrosion layer 33 is fixedly installed on the outer surface of the rubber outer layer 32.

[0033] like Figure 1 , Figure 2 and Figure 5 As shown, the stab-resistant metal mesh 31 is a metal mesh made of two layers of cross-woven mesh.

[0034] The stab-resistant metal mesh 31 significantly enhances the structural strength of the pipe through a cross-woven metal structure. This structure allows the pipe to better distribute stress when subjected to external pressure, thereby improving the pipe's pressure resistance and durability. At the same time, the double-layer weaving prevents external punctures, thus increasing the stab-resistant effect of the rubber hose assembly.

[0035] like Figure 1 , Figure 2 , Figure 3 and Figure 4 As shown, the pressure-resistant and oil-resistant mechanism 4 includes a first rubber inner layer 41, a supporting woven steel mesh 42 fixedly installed on the inner surface of the first rubber inner layer 41, and a second rubber inner layer 43 fixedly installed on the inner surface of the supporting woven steel mesh 42.

[0036] The support braided steel mesh 42 has excellent bending resistance and fatigue resistance, and can maintain stable performance during long-term use, making it suitable for occasions that require frequent bending and long-term use.

[0037] like Figure 1 , Figure 2 , Figure 3 and Figure 4 As shown, the outer surface of the first rubber inner layer 41 is fixedly connected to the inner surface of the hose body 1, and the supporting woven steel mesh 42 is composed of several steel wires 44.

[0038] like Figure 4 As shown, the outer surface of the steel wire 44 is fixedly coated with an anti-rust coating 45.

[0039] The rust-proof coating 45 is made of epoxy resin, a two-component epoxy anti-corrosion coating. It has anti-corrosion and anti-rust properties, and is resistant to solvents, oil, and water. In particular, its oil resistance is excellent, and it can withstand immersion in solvents such as gasoline and kerosene without leaving a intact paint film.

[0040] like Figure 1 , Figure 2 , Figure 3 and Figure 4 As shown, the inner layer 41 of rubber No. 1 and the inner layer 43 of rubber No. 2 are made of nitrile rubber.

[0041] The oil resistance of nitrile rubber (NBR) is mainly due to its chemical structure. NBR is polymerized from acrylonitrile and butadiene monomers, exhibiting excellent resistance to oil, solvents, and chemical corrosion. The acrylonitrile portion of its molecular structure resists the erosion of non-polar oils such as gasoline, maintaining the stability of its physical properties and appearance.

[0042] In use, the user first winds the inner layer 43 of rubber (number two) onto the hose manufacturing tube. Then, the steel wire 44 coated with anti-rust coating 45 is woven into a supporting braided steel mesh 42 and wound around the inner layer 43 of rubber (number two). Next, the inner layer 41 of rubber (number one) is wound onto the supporting braided steel mesh 42. Then, the hose body 1 is wound onto the supporting inner layer 41 of rubber (number one). Next, the anti-stab metal mesh 31 is wound onto the hose body 1. Then, the outer layer 32 of rubber is wound onto the outer layer of the anti-stab metal mesh 31. Finally, the hose is wound... The good rubber hose assembly is placed in a high-temperature vulcanization chamber for shaping. After shaping, the workers apply the anti-corrosion layer 33 to the rubber outer layer 32. When the rubber hose assembly is punctured, the puncture needle will first pass through the rubber outer layer 32 and then touch the anti-puncture metal mesh 31, where it will be blocked. The anti-corrosion layer 33 can block external liquids that corrode the rubber. At the same time, when substances such as gasoline are present inside the rubber hose assembly, the gasoline will not corrode the No. 1 rubber inner layer 41 and No. 2 rubber inner layer 43 made of nitrile rubber.

[0043] It should be understood that these embodiments are for illustrative purposes only and are not intended to limit the scope of protection of this utility model. Furthermore, it should be understood that after reading the technical description of this utility model, those skilled in the art can make various alterations, modifications, and / or variations to this utility model, and all such equivalent forms also fall within the scope of protection defined by the appended claims.

Claims

1. An oil-resistant and high-pressure resistant rubber hose assembly, comprising a hose body (1), characterized in that: The hose body (1) is fixedly equipped with connectors (2) at both ends, a protective mechanism (3) is fixedly installed on the outer surface of the hose body (1), and a pressure-resistant and oil-resistant mechanism (4) is fixedly installed on the inner surface of the hose body (1). The protective mechanism (3) includes a stab-proof metal mesh (31), the inner surface of which is fixedly connected to the outer surface of the hose body (1), a rubber outer layer (32) is fixedly installed on the outer surface of the stab-proof metal mesh (31), and an anti-corrosion layer (33) is fixedly installed on the outer surface of the rubber outer layer (32).

2. The oil-resistant and high-pressure-resistant rubber hose assembly according to claim 1, characterized in that: The stab-resistant metal mesh (31) is a metal mesh made of two layers of cross-woven mesh.

3. The oil-resistant and high-pressure-resistant rubber hose assembly according to claim 1, characterized in that: The pressure-resistant and oil-resistant mechanism (4) includes a first rubber inner layer (41), on the inner surface of the first rubber inner layer (41) a supporting woven steel mesh (42) is fixedly installed, and on the inner surface of the supporting woven steel mesh (42) a second rubber inner layer (43) is fixedly installed.

4. The oil-resistant and high-pressure-resistant rubber hose assembly according to claim 3, characterized in that: The outer surface of the first rubber inner layer (41) is fixedly connected to the inner surface of the hose body (1), and the supporting woven steel mesh (42) is woven from several steel wires (44).

5. The oil-resistant and high-pressure-resistant rubber hose assembly according to claim 4, characterized in that: The outer surface of the steel wire (44) is fixedly coated with an anti-rust coating (45).

6. The oil-resistant and high-pressure-resistant rubber hose assembly according to claim 3, characterized in that: The first rubber inner layer (41) and the second rubber inner layer (43) are made of nitrile rubber.

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