High-strength ethylene propylene diene monomer rubber tube

Abstract

The utility model relates to the field of rubber pipes, and discloses a high-strength ethylene propylene diene monomer rubber pipe, which comprises an outer layer and an inner layer, a plurality of groups of longitudinal reinforcing ribs are arranged in the outer layer, a spiral reinforcing rib is arranged in the inner layer, the spiral reinforcing rib is spirally wound in the inner layer, and a plurality of groups of longitudinal reinforcing ribs are arranged in the outer layer. According to the high-strength ethylene-propylene-diene monomer rubber pipe, the elastic pieces are additionally arranged, so that when the high-strength ethylene-propylene-diene monomer rubber pipe is subjected to pressure, the elastic pieces can deform at the moment, the compression resistance of the rubber pipe can be improved, and the service life of the rubber pipe is prolonged. The rigidity of the rubber pipe can be kept by adding the reinforcing ribs and the spiral reinforcing ribs, meanwhile, the spiral reinforcing ribs can enable the rubber pipe to be bent into the required shape according to the requirements of use occasions and keep the required shape, and the pressure resistance of the rubber pipe can be further improved.

Description

Technical Field

[0001] The utility model relates to the field of rubber tubes, in particular to a high-strength EPDM rubber tube. Background Art

[0002] EPDM rubber is a copolymer of ethylene, propylene and a small amount of non-conjugated dienes. Because its main chain is composed of chemically stable saturated hydrocarbons and only contains unsaturated double bonds in the side chains, it has excellent aging resistance such as ozone resistance, heat resistance, and weather resistance. It can be widely used in automotive parts, building waterproof materials, wire and cable sheathing, heat-resistant hoses, tapes, automotive seals and other fields. Existing rubber tubes are generally composed of a wear-resistant outer layer, a middle rubber layer and an innermost insulating layer. Such rubber tubes have general compressive properties and are therefore prone to pressure deformation in some usage scenarios, affecting their use. For this reason, we have proposed a high-strength EPDM rubber tube. Utility Model Content

[0003] ( 一 )解决的技术问题

[0004] In view of the deficiencies in the prior art, the utility model provides a high-strength EPDM rubber tube to solve the above-mentioned problems.

[0005] (2) Technical solution

[0006] To achieve the above-mentioned purpose, the present invention provides the following technical solution: a high-strength EPDM rubber tube, comprising an outer layer and an inner layer, wherein the interior of the outer layer is provided with multiple groups of longitudinal reinforcing ribs, and the interior of the inner layer is provided with spiral reinforcing ribs, which are spirally wound around the interior of the inner layer, and multiple groups of spring sheets are provided between the inner layer and the outer side, and one side of the concave surface of the spring sheet corresponds to the outer layer.

[0007] Preferably, the outer layer includes a wear-resistant layer and a rubber base layer, the rubber base layer is arranged on the inner side of the wear-resistant layer, and the reinforcing ribs are arranged on the rubber base layer.

[0008] Preferably, a plurality of mounting grooves are equidistantly provided on a wall surface of one side of the reinforcing rib corresponding to the wear-resistant layer, and the reinforcing rib is embedded in the interior of the mounting groove.

[0009] Preferably, the rubber base layer is made of EPDM material.

[0010] Preferably, an arc-shaped notch is provided on the inner side of the rubber base layer corresponding to the bent end of the elastic piece, and one side of the arc-shaped notch is in contact with the inner layer, and the arc-shaped end of the elastic piece is positioned against the inside of the arc-shaped notch.

[0011] Preferably, the inner layer includes a barrier layer and an inner rubber tube, the spiral reinforcement rib is arranged between the inner rubber tube and the barrier layer, and the barrier layer is arranged on the inner side of the inner rubber tube.

[0012] Preferably, the barrier layer includes a heat-insulating layer and an insulating layer, and the insulating layer is arranged on the inner side of the heat-insulating layer.

[0013] (3) Beneficial effects

[0014] Compared with the prior art, the present invention provides a high-strength EPDM rubber hose with the following beneficial effects:

[0015] 1. This high-strength EPDM rubber tube has added springs. When subjected to pressure, multiple groups of springs will deform, which can increase the compressive resistance of the rubber tube. The rigidity of the rubber tube can be maintained by adding reinforcing ribs and spiral reinforcing ribs. At the same time, the spiral reinforcing ribs can bend the rubber tube into the required shape and maintain it according to the needs of the application, which can further improve the compressive resistance of the rubber tube.

[0016] 2. The high-strength EPDM rubber tube, the heat insulation layer and the insulating layer can increase the flame retardancy and insulation properties of the rubber tube. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a schematic diagram of the structure of the utility model;

[0018] Figure 2 for Figure 1 A local enlarged schematic diagram of point A in FIG;

[0019] Figure 3 It is a side view schematic diagram of the utility model;

[0020] Figure 4 for Figure 3 BB cross-sectional view in .

[0021] In the figure: 1. Wear-resistant layer; 2. Rubber base layer; 3. Installation groove; 4. Reinforcement rib; 5. Arc-shaped notch; 6. Shrapnel; 7. Inner rubber tube; 8. Spiral reinforcement rib; 9. Thermal insulation layer; 10. Insulation layer. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0023] See also Figure 1-4 A high-strength EPDM rubber tube includes an outer layer and an inner layer. The outer layer is provided with multiple groups of longitudinal reinforcing ribs 4, and the inner layer is provided with spiral reinforcing ribs 8. The spiral reinforcing ribs 8 are spirally wound around the inner layer. Multiple groups of spring pieces 6 are provided between the inner layer and the outer layer. One side of the concave surface of the spring piece 6 corresponds to the outer layer. The spiral reinforcing ribs 8 can bend the rubber tube into the required shape and maintain it according to the needs of the application, and can further improve the pressure resistance of the rubber tube.

[0024] Furthermore, the outer layer includes a wear-resistant layer 1 and a rubber base layer 2 . The rubber base layer 2 is arranged on the inner side of the wear-resistant layer 1 , and the reinforcing ribs 4 are arranged on the rubber base layer 2 .

[0025] Furthermore, a plurality of mounting grooves 3 are evenly spaced on a wall surface of the reinforcing rib 4 corresponding to one side of the wear-resistant layer 1 , and the reinforcing rib 4 is embedded in the mounting grooves 3 .

[0026] Furthermore, the rubber base layer 2 is made of EPDM material.

[0027] Furthermore, an arc-shaped notch 5 is provided on the inner side of the rubber base layer 2 corresponding to the bent end of the spring piece 6. One side of the arc-shaped surface of the arc-shaped notch 5 fits the inner layer, and the arc-shaped end of the spring piece 6 is positioned against the inside of the arc-shaped notch 5. By adding the spring piece 6, when subjected to pressure, multiple groups of spring pieces 6 will be deformed, which can increase the compressive resistance of the rubber tube.

[0028] Furthermore, the inner layer includes a barrier layer and an inner rubber tube 7 , the spiral reinforcement rib 8 is arranged between the inner rubber tube 7 and the barrier layer, and the barrier layer is arranged on the inner side of the inner rubber tube 7 .

[0029] Furthermore, the barrier layer includes a heat-insulating layer 9 and an insulating layer 10. The insulating layer 10 is arranged on the inner side of the heat-insulating layer 9. The heat-insulating layer 9 and the insulating layer 10 can increase the flame retardancy and insulation of the rubber tube.

[0030] Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A high-strength EPDM rubber tube, comprising an outer layer and an inner layer, characterized in that: The outer layer is provided with a plurality of groups of longitudinal reinforcing ribs (4), the inner layer is provided with spiral reinforcing ribs (8), and the spiral reinforcing ribs (8) are spirally wound inside the inner layer. A plurality of groups of spring pieces (6) are provided between the inner layer and the outer layer, and one side of the concave surface of the spring piece (6) corresponds to the outer layer.

2. The high-strength EPDM rubber hose according to claim 1, characterized in that: The outer layer comprises a wear-resistant layer (1) and a rubber base layer (2), wherein the rubber base layer (2) is arranged on the inner side of the wear-resistant layer (1), and the reinforcing ribs (4) are arranged on the rubber base layer (2).

3. The high-strength EPDM rubber hose according to claim 2, characterized in that: The reinforcing rib (4) is provided with a plurality of groups of mounting grooves (3) at equal intervals on a wall surface on one side of the wear-resistant layer (1), and the reinforcing rib (4) is embedded in the interior of the mounting grooves (3).

4. The high-strength EPDM rubber tube according to claim 2, characterized in that: The rubber base layer (2) is made of EPDM material.

5. The high-strength EPDM rubber tube according to claim 2, characterized in that: An arc-shaped notch (5) is provided on the inner side of the rubber base layer (2) corresponding to the bent end of the spring piece (6), and one side of the arc-shaped surface of the arc-shaped notch (5) is in contact with the inner layer, and the arc-shaped end of the spring piece (6) is positioned against the inside of the arc-shaped notch (5).

6. The high-strength EPDM rubber hose according to claim 1, characterized in that: The inner layer comprises an insulation layer and an inner rubber tube (7), the spiral reinforcement rib (8) is arranged between the inner rubber tube (7) and the insulation layer, and the insulation layer is arranged on the inner side of the inner rubber tube (7).

7. The high-strength EPDM rubber tube according to claim 6, characterized in that: The barrier layer comprises a heat-insulating layer (9) and an insulating layer (10), wherein the insulating layer (10) is arranged on the inner side of the heat-insulating layer (9).

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