Four-layer alternately wound hydraulic hose

Abstract

The utility model discloses a four-layer alternate winding hydraulic hose which comprises a hose body, a protection structure is alternately wound on the outer side of the hose body, the protection structure comprises a waterproof strip, a tensile strip, a leakage-proof strip and a connecting strip, the two ends of the connecting strip are connected with the waterproof strip and the tensile strip respectively, the outer side of the waterproof strip is connected with the leakage-proof strip, and the outer side of the connecting strip is connected with the tensile strip. The protection structures are alternately wound on the surface of the hose body, and the protection structures are alternately wound on the outer side of the hose body, so that water leakage and breakage of the hose body are prevented.

Description

Technical Field

[0001] The utility model relates to the technical field of hydraulic hoses, in particular to a four-layer alternately wound hydraulic hose. Background Art

[0002] The hydraulic hose is mainly composed of a liquid-resistant inner rubber layer, a steel wire layer and an outer rubber layer. The inner rubber layer allows the conveying medium to withstand pressure and protects the steel wire from erosion. The outer rubber layer protects the steel wire from damage, and the steel wire layer is a skeleton material that plays a reinforcing role.

[0003] Therefore, hydraulic hoses are mainly used in mine hydraulic supports and oil field mining. They are suitable for engineering construction, lifting and transportation, metallurgical forging, mining equipment, ships, injection molding machinery, agricultural machinery, various machine tools, and mechanized and automated hydraulic systems in various industrial sectors to transport petroleum-based and water-based liquids with a certain pressure and temperature and for liquid transmission. The maximum working pressure resistance can reach 60MPa.

[0004] During the operation of the hydraulic hose, due to the excessive internal pressure, the hose is prone to water leakage, which affects the service life of the hydraulic hose. Utility Model Content

[0005] 1. Technical issues to be resolved

[0006] In view of the deficiencies of the prior art, the utility model provides a four-layer alternately wound hydraulic hose.

[0007] (II) Technical solution

[0008] For the above purposes, the above technical objectives of the utility model are achieved through the following technical solutions: a four-layer alternately wound hydraulic hose, comprising a hose body, a protective structure alternately wound on the outside of the hose body, the protective structure comprising a waterproof strip, a tensile strip, a leak-proof strip and a connecting strip, the two ends of the connecting strip are respectively connected to the waterproof strip and the tensile strip, the outer side of the waterproof strip is connected to the leak-proof strip, and the protective structure is alternately wound on the surface of the hose body.

[0009] Preferably, the bottom of the leak-proof strip is a water-soluble film, and a water-absorbent resin block is provided inside the leak-proof strip.

[0010] Preferably, both ends of the tensile strip are fixedly connected with elastic ropes.

[0011] Preferably, a water-absorbing ball is provided in the waterproof strip, and the water-absorbing ball is a nylon ball.

[0012] Preferably, a rubber outer layer is fixedly connected to the outer side of the protection structure.

[0013] (III) Beneficial effects

[0014] The utility model provides a four-layer alternately wound hydraulic hose, which has the following beneficial effects:

[0015] 1. The protective structure is alternately wrapped around the outside of the hose body to prevent the hose body from leaking and breaking. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 A three-dimensional diagram of an embodiment of the utility model;

[0017] Figure 2 Schematic diagram of the connection of the protection structure;

[0018] Figure 3 To protect the structural section view.

[0019] Figure numerals: 1. hose body; 2. waterproof strip; 3. tensile strip; 4. leak-proof strip; 5. connecting strip; 6. water-soluble film; 7. water-absorbent resin block; 8. elastic rope; 9. water-absorbent ball; 10. rubber outer layer. DETAILED DESCRIPTION

[0020] The following is only a preferred embodiment of the present invention, and the protection scope is not limited to this embodiment. All technical solutions under the concept of the present invention should belong to the protection scope of the present invention. At the same time, it should be pointed out that for ordinary technicians in this technical field, some improvements and modifications without departing from the principle of the present invention should also be regarded as the protection scope of the present invention.

[0021] As shown in the figure, a four-layer alternately wound hydraulic hose comprises a hose body 1. A rubber outer layer 10 is fixedly connected to the outer side of the protective structure.

[0022] The outer side of the hose body 1 is alternately wound with a protective structure, which includes a waterproof strip 2, a tensile strip 3, a leak-proof strip 4 and a connecting strip 5. The two ends of the connecting strip 5 are respectively connected to the waterproof strip 2 and the tensile strip 3. The outer side of the waterproof strip 2 is connected to the leak-proof strip 4. The protective structure is alternately wound on the surface of the hose body 1. The bottom of the leak-proof strip 4 is a water-soluble film 6, and a water-absorbing resin block 7 is arranged inside the leak-proof strip 4. Elastic ropes 8 are fixedly connected at both ends of the tensile strip 3. Water-absorbing balls 9 are arranged inside the waterproof strip 2, and the water-absorbing balls 9 are nylon balls.

[0023] Working principle: High-pressure liquid flows through the hose body 1. When water leaks from the hose body 1, the water-soluble film 6 dissolves in the water, and the absorbent resin block 7 absorbs the water flow and expands to block the leak. At the same time, a bulge is formed outside the tube to indicate the leak. Excess water is absorbed by the nylon ball.

[0024] In summary, the protective structure is alternately wound around the outside of the hose body 1 to prevent the hose body 1 from leaking and breaking.

Claims

1. A four-layer alternately wound hydraulic hose, comprising a hose body (1), characterized in that: A protective structure is alternately wound around the outside of the hose body (1), the protective structure comprising a waterproof strip (2), a tensile strip (3), a leak-proof strip (4) and a connecting strip (5), the two ends of the connecting strip (5) are respectively connected to the waterproof strip (2) and the tensile strip (3), the outside of the waterproof strip (2) is connected to the leak-proof strip (4), and the protective structure is alternately wound around the surface of the hose body (1).

2. A four-layer alternately wound hydraulic hose according to claim 1, characterized in that: The bottom of the leakage-proof strip (4) is a water-soluble film (6), and a water-absorbing resin block (7) is arranged inside the leakage-proof strip (4).

3. The four-layer alternately wound hydraulic hose according to claim 2, characterized in that: Elastic ropes (8) are fixedly connected to both ends of the tension-resistant strip (3).

4. A four-layer alternately wound hydraulic hose according to claim 3, characterized in that: A water-absorbing ball (9) is arranged inside the waterproof strip (2), and the water-absorbing ball (9) is a nylon ball.

5. The four-layer alternately wound hydraulic hose according to claim 4, characterized in that: A rubber outer layer (10) is fixedly connected to the outer side of the protection structure.

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