Steel wire braided oil pipe

Abstract

The utility model provides a kind of steel wire braiding oil pipe, it is related to braiding oil pipe field, including inner core pipe and outer tube, the inner core pipe and outer tube are provided with pressure-resistant braiding layer. The pressure-resistant braiding layer includes inner layer steel wire braiding layer and outer layer steel wire braiding layer, the inner layer steel wire braiding layer is set to clockwise spiral braiding, the outer layer steel wire braiding layer is set to anticlockwise spiral braiding, and the thickness of inner layer steel wire braiding layer and outer layer steel wire braiding layer is identical. This symmetrical braiding structure effectively improves the pressure strength and torsional properties of oil pipe, prevent deformation or rupture under high pressure. The steel wire braiding oil pipe, through the reverse spiral braiding of inner layer and outer layer steel wire braiding layer, can improve the overall pressure capacity and fatigue resistance of oil pipe, ensure the service life and safety of oil pipe, at the same time, by spiral angle setting is between forty-five degrees and sixty degrees, can make oil pipe keep stable under high pressure environment.

Description

Technical Field

[0001] This utility model relates to the field of braided tubing technology, specifically a steel wire braided tubing. Background Technology

[0002] Steel wire braided tubing is widely used in hydraulic systems, engineering machinery, and the automotive industry to transport high-pressure hydraulic fluids.

[0003] Traditional steel wire braided tubing typically consists of an inner rubber layer, a steel wire braiding layer, and an outer rubber layer. However, it suffers from insufficient pressure resistance and is prone to deformation or rupture under high pressure, affecting the service life and safety of the tubing. Summary of the Invention

[0004] Technical problems to be solved To address the shortcomings of existing technologies, this utility model provides a steel wire braided oil hose with good pressure resistance, thus solving the problems mentioned in the background section.

[0005] Technical solution To achieve the above objectives, this utility model provides the following technical solution: a steel wire braided tubing, comprising an inner core tube and an outer tube, with a pressure-resistant braided layer disposed between the inner core tube and the outer tube. The pressure-resistant braided layer includes an inner steel wire braided layer and an outer steel wire braided layer. The inner steel wire braided layer is configured with a clockwise spiral braid, and the outer steel wire braided layer is configured with a counterclockwise spiral braid, with both layers having the same thickness. This symmetrical braiding structure effectively improves the pressure resistance and torsional resistance of the tubing, preventing deformation or rupture under high pressure.

[0006] Preferably, an anti-slip layer is fixedly connected between the inner and outer steel wire braided layers. The anti-slip layer enhances the bonding force between the layers, prevents relative slippage between the braided layers, and further improves structural stability.

[0007] Preferably, the thickness of the anti-slip layer is less than the thickness of the inner wire braided layer. This ensures that the anti-slip layer does not excessively increase the overall diameter of the tubing while maintaining sufficient anti-slip effect.

[0008] Preferably, the inner and outer steel wire braided layers have the same helix angle, which is set between 45 and 60 degrees. This angle range optimizes the mechanical properties of the braided layer, balancing pressure resistance and flexibility.

[0009] Preferably, both the outer tube and the anti-slip layer are made of thermoplastic. Thermoplastic has good wear resistance, corrosion resistance, and processing performance, which helps to extend the service life of the tubing.

[0010] Preferably, the thickness of the inner core tube is greater than the thickness of the inner steel wire braid layer. This ensures that the inner core tube has sufficient strength and sealing performance to prevent fluid leakage. Beneficial effects

[0011] This utility model provides a steel wire braided oil hose. It has the following beneficial effects: This steel wire braided oil pipe, through the reverse spiral braiding of the inner and outer steel wire braiding layers, can improve the overall pressure resistance and fatigue resistance of the oil pipe, ensuring the service life and safety of the oil pipe. At the same time, by setting the spiral angle between 45 degrees and 60 degrees, the oil pipe can remain stable under high pressure environment.

[0012] This steel wire braided oil hose, through the addition of an anti-slip layer, can effectively reduce interlayer slippage between the inner and outer steel wire braided layers under high pressure, ensuring pressure resistance. Attached Figure Description

[0013] Figure 1 This is a three-dimensional view of the structure of this utility model; Figure 2 This is a cross-sectional view of the structure of this utility model.

[0014] In the diagram: 1. Inner core tube; 2. Outer tube; 3. Pressure-resistant braided layer; 31. Inner steel wire braided layer; 32. Outer steel wire braided layer; 33. Anti-slip layer. Detailed Implementation

[0015] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention.

[0016] This utility model embodiment provides a steel wire braided oil pipe, such as Figures 1 to 2 As shown, the tubing includes an inner core tube 1 and an outer tube 2. The inner core tube 1 is typically made of rubber or synthetic polymer and is used for direct contact with the fluid being transported. The outer tube 2 serves as a protective layer to prevent damage from the external environment. A pressure-resistant braided layer 3 is provided between the inner core tube 1 and the outer tube 2. This pressure-resistant braided layer 3 consists of an inner steel wire braided layer 31 and an outer steel wire braided layer 32. The inner steel wire braided layer 31 uses a clockwise spiral braiding method, while the outer steel wire braided layer 32 uses a counterclockwise spiral braiding method, and both braided layers have the same thickness. This symmetrical braiding structure allows the tubing to distribute stress evenly under high pressure, reducing local deformation.

[0017] To enhance interlayer bonding, an anti-slip layer 33 is fixedly connected between the inner steel wire braided layer 31 and the outer steel wire braided layer 32. The thickness of the anti-slip layer 33 is less than the thickness of the inner steel wire braided layer 31; for example, the thickness of the inner steel wire braided layer 31 is 0.5 mm, and the thickness of the anti-slip layer 33 is 0.2 mm. The anti-slip layer 33 can be fixed to the braided layer by adhesive or hot-melt method.

[0018] The inner steel wire braided layer 31 and the outer steel wire braided layer 32 have the same helix angle, preferably between 45° and 60°. This angle range was determined experimentally to achieve an optimal balance between pressure resistance and flexibility.

[0019] Both the outer tube 2 and the anti-slip layer 33 are made of thermoplastics, such as polyurethane or nylon. These materials have good mechanical properties and chemical stability, making them suitable for various harsh environments.

[0020] The thickness of the inner core tube 1 is greater than the thickness of the inner steel wire braided layer 31. For example, the thickness of the inner core tube 1 is 1.0 mm, and the thickness of the inner steel wire braided layer 31 is 0.5 mm. This ensures that the inner core tube 1 will not crack or leak under high pressure.

[0021] The manufacturing method of this steel wire braided tubing is as follows: first, an inner core tube 1 is extruded; then, an inner steel wire braided layer 31 is braided onto the inner core tube 1; next, an anti-slip layer 33 is coated or wrapped; then, an outer steel wire braided layer 32 is braided; and finally, an outer tube 2 is extruded. Throughout the process, the braiding angle and thickness must be strictly controlled. This steel wire braided tubing can exhibit excellent pressure resistance and durability under high-pressure environments.

[0022] Although 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 alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A steel wire braided oil pipe, comprising an inner core tube (1) and an outer tube (2), characterized in that: A pressure-resistant braided layer (3) is provided between the inner core tube (1) and the outer tube (2). The pressure-resistant braided layer (3) includes an inner steel wire braided layer (31) and an outer steel wire braided layer (32). The inner steel wire braided layer (31) is configured to be clockwise spiral braided, and the outer steel wire braided layer (32) is configured to be counterclockwise spiral braided. The inner steel wire braided layer (31) and the outer steel wire braided layer (32) have the same thickness.

2. The steel wire braided oil hose according to claim 1, characterized in that: An anti-slip layer (33) is fixedly connected between the inner steel wire braided layer (31) and the outer steel wire braided layer (32).

3. The steel wire braided oil hose according to claim 2, characterized in that: The thickness of the anti-slip layer (33) is less than the thickness of the inner steel wire braided layer (31).

4. The steel wire braided oil hose according to claim 1, characterized in that: The inner steel wire braided layer (31) and the outer steel wire braided layer (32) have the same helix angle, and the helix angle is set between 45 degrees and 60 degrees.

5. A steel wire braided oil hose according to claim 2, characterized in that: Both the outer layer and the anti-slip layer (33) are made of thermoplastic.

6. The steel wire braided oil hose according to claim 1, characterized in that: The thickness of the inner core tube (1) is greater than the thickness of the inner steel wire braided layer (31).

Images