Compression-resistant rubber tube

Abstract

The utility model discloses a compression-resistant rubber tube which comprises an inner tube, a framework layer is sleeved on the outer side of the inner tube, an inner sheath is sleeved on the outer side of the framework layer, a compression-resistant layer is sleeved on the outer side of the inner sheath, a wear-resistant layer is sleeved on the outer side of the compression-resistant layer, and a tensile layer is arranged on the outer side of the wear-resistant layer. The outer side of the tensile layer is sleeved with an outer sheath, and the skeleton layer and the tensile layer are each of a spiral structure. Through the arrangement of the regular hexagon rings, the regular hexagon rings can be respectively in close contact with the inner sheath and the wear-resistant layer, and due to the structural characteristics of the regular hexagon rings, a plurality of stable triangular structures are formed between the regular hexagon rings and the inner sheath, so that the compression resistance of the rubber tube is greatly improved.

Description

Technical Field

[0001] This utility model belongs to the field of rubber hose technology, and in particular relates to a pressure-resistant rubber hose. Background Technology

[0002] Rubber hoses are pipes used for gas transportation, commonly used in gas welding, gas cutting, various gas shielded welding, plasma arc welding, and cutting. There are two types of rubber hoses for welding: according to national standards, blue hoses are oxygen hoses with a maximum operating pressure of 1.5 MPa; red or black hoses are acetylene hoses with an allowable operating pressure of 0.5 to 1.0 MPa. Rubber hoses have the following properties: physiological inertness, UV resistance, ozone resistance, high and low temperature resistance (-80 to 300 degrees Celsius), high transparency, strong resilience, permanent compression resistance, oil resistance, impact resistance, acid and alkali resistance, wear resistance, flame retardancy, voltage resistance, and electrical conductivity.

[0003] Existing rubber hoses have low pressure resistance, and after long-term use, the pipes are easily damaged, which affects their performance. This not only wastes resources, but in severe cases, it can even cause accidents that endanger people's lives and property. Utility Model Content

[0004] The purpose of this utility model is to provide a pressure-resistant rubber tube to solve the technical problems mentioned in the background art.

[0005] To achieve the above objectives, the specific technical solution of this utility model is as follows: A pressure-resistant rubber tube includes an inner tube, a skeleton layer sleeved on the outer side of the inner tube, an inner sheath sleeved on the outer side of the skeleton layer, a pressure-resistant layer sleeved on the outer side of the inner sheath, a wear-resistant layer sleeved on the outer side of the pressure-resistant layer, a tensile layer sleeved on the outer side of the wear-resistant layer, and an outer sheath sleeved on the outer side of the tensile layer. The skeleton layer and the tensile layer are both spiral structures. The pressure-resistant layer includes multiple equally spaced regular hexagonal rings. An inner support strip is provided at each corner of the inner wall of the regular hexagonal rings, and an outer support strip is provided at the middle part of the outer wall of each side of the regular hexagonal rings.

[0006] Preferably, there are gaps between each helical structure of the skeleton layer and the tensile layer.

[0007] Preferably, the skeleton layer is made of steel strip, and the tensile layer is made of carbon fiber strip.

[0008] Preferably, the inner wall of the regular hexagonal ring is in contact with the outer wall of the inner sheath, and each vertex of the regular hexagonal ring is in contact with the inner wall of the wear-resistant layer.

[0009] Preferably, the surface of the inner support bar contacts the outer wall of the inner sheath, and the surface of the outer support bar contacts the inner wall of the wear-resistant layer.

[0010] Preferably, the inner support strip is a cylindrical structure, the outer support strip is a fan-shaped structure, and both the inner and outer support strips are made of elastic hollow material.

[0011] The pressure-resistant rubber hose of this utility model has the following advantages:

[0012] 1. By setting a regular hexagonal ring, this utility model allows the regular hexagonal ring to make close contact with the inner sheath and the wear-resistant layer respectively. Due to the characteristics of the regular hexagonal ring structure, multiple stable triangular structures are formed between it and the inner sheath, thereby greatly improving the pressure resistance of the rubber tube.

[0013] 2. This utility model increases the contact area between the inner and outer support strips and the pressure-resistant layer, inner sheath, and wear-resistant layer. Furthermore, due to the good resilience of the inner and outer support strips, the pressure resistance of the rubber tube is further enhanced, greatly improving its service life.

[0014] 3. By setting up a tensile layer at the skeleton level, the strength of the rubber tube is improved, giving it good tensile strength, corrosion resistance, high temperature resistance, and good seismic performance. Attached Figure Description

[0015] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this utility model and should not be regarded as a limitation of the scope. For those skilled in the art, other related drawings can be obtained from these drawings without creative effort.

[0016] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0017] Figure 2 This is an exploded view of the present invention;

[0018] Figure 3 This is a schematic diagram of the skeleton layer in this utility model;

[0019] Figure 4 This is a schematic diagram of the structure of the compressive layer in this utility model;

[0020] Figure 5 This is a schematic diagram of the tensile layer in this utility model.

[0021] The markings in the diagram are as follows: 1. Inner tube; 2. Skeleton layer; 3. Inner sheath; 4. Compression layer; 5. Wear-resistant layer; 6. Tensile layer; 7. Outer sheath; 8. Regular hexagonal ring; 9. Inner support bar; 10. Outer support bar. Detailed Implementation

[0022] In the following description, only certain exemplary embodiments are briefly described. As those skilled in the art will recognize, the described embodiments can be modified in various ways without departing from the spirit or scope of the present invention. Therefore, the drawings and description are considered to be exemplary in nature and not restrictive.

[0023] In the description of the embodiments of this utility model, it should be understood that the terms "length", "vertical", "horizontal", "top", "bottom", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings. They are only for the convenience of describing the embodiments of this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the embodiments of this utility model.

[0024] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of embodiments of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified.

[0025] In this embodiment of the invention, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection, an electrical connection, or a communication connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this embodiment of the invention according to the specific circumstances.

[0026] The following disclosure provides many different implementations or examples for different structures of the embodiments of the present invention. To simplify the disclosure of the embodiments of the present invention, specific examples of components and arrangements are described below. Of course, these are merely examples and are not intended to limit the embodiments of the present invention. Furthermore, reference numerals and / or reference letters may be repeated in different examples of the embodiments of the present invention; such repetition is for simplification and clarity and does not in itself indicate a relationship between the various implementations and / or arrangements discussed.

[0027] To better understand the purpose, structure, and function of this utility model, a pressure-resistant rubber tube of this utility model will be described in further detail below with reference to the accompanying drawings.

[0028] like Figure 1-5As shown, this utility model discloses a pressure-resistant rubber tube, comprising an inner tube 1, a skeleton layer 2 sleeved on the outer side of the inner tube 1, an inner sheath 3 sleeved on the outer side of the skeleton layer 2, a pressure-resistant layer 4 sleeved on the outer side of the inner sheath 3, a wear-resistant layer 5 sleeved on the outer side of the pressure-resistant layer 4, a tensile layer 6 sleeved on the outer side of the wear-resistant layer 5, and an outer sheath 7 sleeved on the outer side of the tensile layer 6. Both the skeleton layer 2 and the tensile layer 6 have spiral structures, with gaps between each spiral structure to ensure structural flexibility. The skeleton layer 2 is made of steel strip, which improves the strength of the rubber tube, while the tensile layer 6 is made of carbon fiber strips, giving the rubber tube good tensile strength, corrosion resistance, high-temperature resistance, and good seismic performance.

[0029] The pressure-resistant layer 4 comprises multiple equally spaced regular hexagonal rings 8. The inner wall of the regular hexagonal rings 8 contacts the outer wall of the inner sheath 3, and each vertices of the regular hexagonal rings 8 contacts the inner wall of the wear-resistant layer 5. This allows the regular hexagonal rings 8 to be in close contact with both the inner sheath 3 and the wear-resistant layer 5. Due to the structural characteristics of the regular hexagonal rings 8, multiple stable triangular structures are formed between them and the inner sheath 3, thereby greatly improving the pressure resistance of the rubber tube. An inner support strip 9 is provided at each corner of the inner wall of the regular hexagonal rings 8, and an outer support strip 10 is provided at the middle of the outer wall of each side of the regular hexagonal rings 8. The surface of the inner support strip 9 contacts the outer wall of the inner sheath 3, and the surface of the outer support strip 10 contacts the inner wall of the wear-resistant layer 5. The inner support strip 9 has a cylindrical structure, and the outer support strip 10 has a fan-shaped structure. Both the inner support strip 9 and the outer support strip 10 are made of elastic hollow material. Through the cooperation between the inner support strip 9 and the outer support strip 10, the contact area between the pressure-resistant layer 4 and the inner sheath 3 and the wear-resistant layer 5 is increased. Furthermore, due to the good rebound effect of the inner support strip 9 and the outer support strip 10, the pressure resistance of the rubber tube is further enhanced, and its service life is greatly improved.

[0030] It is understood that this utility model has been described through some embodiments, and those skilled in the art will recognize that various changes or equivalent substitutions can be made to these features and embodiments without departing from the spirit and scope of this utility model. Furthermore, under the teachings of this utility model, these features and embodiments can be modified to adapt to specific situations and materials without departing from the spirit and scope of this utility model. Therefore, this utility model is not limited to the specific embodiments disclosed herein, and all embodiments falling within the scope of the claims of this application are within the protection scope of this utility model.

Claims

1. A pressure-resistant rubber hose, characterized in that: The system includes an inner tube (1), a skeleton layer (2) sleeved on the outer side of the inner tube (1), an inner sheath (3) sleeved on the outer side of the skeleton layer (2), a pressure-resistant layer (4) sleeved on the outer side of the inner sheath (3), a wear-resistant layer (5) sleeved on the outer side of the pressure-resistant layer (4), a tensile layer (6) sleeved on the outer side of the wear-resistant layer (5), and an outer sheath (7) sleeved on the outer side of the tensile layer (6); wherein, The skeleton layer (2) and the tensile layer (6) are both spiral structures. The compressive layer (4) includes multiple equally spaced regular hexagonal rings (8). Each corner of the inner wall of the regular hexagonal ring (8) is provided with an inner support strip (9). The middle part of the outer wall of each side of the regular hexagonal ring (8) is provided with an outer support strip (10).

2. The pressure-resistant rubber hose according to claim 1, characterized in that: There are gaps between each spiral structure of the skeleton layer (2) and the tensile layer (6).

3. The pressure-resistant rubber hose according to claim 1, characterized in that: The skeleton layer (2) is made of steel strips, and the tensile layer (6) is made of carbon fiber strips.

4. The pressure-resistant rubber hose according to claim 1, characterized in that: The inner wall of the regular hexagonal ring (8) is in contact with the outer wall of the inner sheath (3), and each vertex of the regular hexagonal ring (8) is in contact with the inner wall of the wear-resistant layer (5).

5. The pressure-resistant rubber hose according to claim 1, characterized in that: The surface of the inner support bar (9) is in contact with the outer wall of the inner sheath (3), and the surface of the outer support bar (10) is in contact with the inner wall of the wear-resistant layer (5).

6. The pressure-resistant rubber hose according to claim 1, characterized in that: The inner support strip (9) is a cylindrical structure, and the outer support strip (10) is a fan-shaped structure. Both the inner support strip (9) and the outer support strip (10) are made of elastic hollow material.

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