Cable protection tube with high compression resistance

Abstract

The utility model provides a cable protection tube with strong compression resistance, which comprises an outer layer and an inner layer, and relates to the technical field of compression resistance of cable protection tubes. The outer layer is sleeved outside the inner layer, the compensation cavity is arranged inside the inner layer, the compression-resistant bead is movably connected inside the compensation cavity, the steel armor ring is arranged in the interlayer between the outer layer and the inner layer, the compression-resistant bead protrudes out of one side of the compensation cavity and is matched with the steel armor ring, and particularly, the base is used for accommodating the compression-resistant bead. One side of the extrusion wall is fixedly connected with the base, the other side of the extrusion wall and the compression-resistant beads are arranged in a surrounding mode, the sides, protruding out of the inner layer, of the compression-resistant beads are connected with the steel armor ring in a hooping mode, and the connecting rod is fixedly connected with the steel armor ring. Therefore, after the pressure-resistant beads distributed in the annular array are extruded, the cable protection pipe can be supported through movement of the extrusion walls in the pressed direction, the pressed impact-resistant strength of the cable is improved, and the problem that the cable protection pipe is damaged due to simple and low-load pressing is avoided.

Description

Technical Field

[0001] This utility model relates to the field of cable protection pipe pressure resistance technology, specifically a cable protection pipe with strong pressure resistance. Background Technology

[0002] Cable protection pipes are critical protective components used in power, communications, and other fields. They are primarily used to wrap and secure cables, preventing damage during installation and operation from external factors such as mechanical damage, chemical corrosion, ultraviolet radiation, high temperatures, or humidity. Depending on application requirements, cable protection pipes can possess different performance characteristics, such as weather resistance, tensile strength, flame retardancy, or compressive strength. They are made of plastics (such as PVC and PE), metals (such as galvanized steel pipes), or composite materials. Their structural design (such as corrugated pipes and solid-wall pipes) directly affects their flexibility, strength, and ease of installation. With increasing demands for intelligent and environmentally friendly technologies, high-performance, lightweight, and environmentally adaptable new types of cable protection pipes are becoming a technological development trend.

[0003] Cable protection pipes buried underground or in areas subjected to vehicle traffic must withstand significant vertical pressure. Current technologies use corrugated pipes to distribute pressure through structural design (such as ring-shaped reinforcing ribs), but localized stress concentrations can still lead to collapse. Solid-walled pipes, while possessing high compressive strength, lack flexibility and are heavy. Some products employ steel strip armor or composite layer structures, but these are costly and prone to failure due to interlayer delamination. Furthermore, ordinary plastic protective pipes exhibit significantly reduced compressive strength at low temperatures, posing a safety hazard. Utility Model Content

[0004] The purpose of this utility model is to provide a cable protection pipe with strong pressure resistance, so as to solve the problems mentioned in the background art and overcome its technical defects.

[0005] To solve the above-mentioned technical problems, the technical solution adopted by this utility model is: a cable protection pipe with strong pressure resistance, including an outer layer and an inner layer, wherein the outer layer is sleeved outside the inner layer, a compensation cavity is opened inside the inner layer, and a pressure-resistant bead is movably connected inside the compensation cavity. A steel armor ring is provided in the interlayer between the outer layer and the inner layer, and the pressure-resistant bead protrudes from one side of the compensation cavity and is adapted to the steel armor ring.

[0006] As a further embodiment of this utility model: a cable protection pipe with strong pressure resistance, wherein the inner layer includes a base and an extrusion wall, the base is used to accommodate the pressure-resistant beads, one side of the extrusion wall is fixedly connected to the base, and the other side of the extrusion wall is arranged to surround the pressure-resistant beads.

[0007] As a further embodiment of this utility model: a cable protection pipe with strong pressure resistance, wherein the steel armor ring includes a steel armor ring and a connecting rod, the side of the pressure-resistant bead protruding from the inner layer is clamped to the steel armor ring, and the connecting rod is fixedly connected to the steel armor ring.

[0008] As a further embodiment of this utility model: a cable protection pipe with strong pressure resistance, wherein one side of the steel armor ring is in contact with the outer layer, and the outer periphery of the pressure-resistant bead is in contact with the outer layer.

[0009] As a further embodiment of this utility model: a cable protection pipe with strong pressure resistance, further comprising a pressure-bearing direction, wherein the pressure-bearing direction is the conventional movement direction of the extrusion wall.

[0010] As a further embodiment of this utility model: a cable protection pipe with strong pressure resistance, wherein the outer periphery of the pressure-resistant bead is polished and the pressure-resistant bead is made of high carbon steel.

[0011] As a further embodiment of this utility model: a cable protection pipe with strong pressure resistance, wherein the steel armor ring is made entirely of nickel-based alloy.

[0012] As a further embodiment of this utility model: a cable protection pipe with strong pressure resistance, wherein the outer and inner layers are made entirely of polyurethane (PA).

[0013] Compared with the prior art, the beneficial effects of this utility model include:

[0014] Since the outer layer is fitted over the inner layer, and the inner layer has a compensation cavity, a pressure-resistant bead is movably connected inside the compensation cavity. A steel armor ring is provided in the interlayer between the outer and inner layers. The pressure-resistant bead protrudes from one side of the compensation cavity and is adapted to the steel armor ring. Specifically, the base provides a place for the pressure-resistant bead, one side of the extrusion wall is fixedly connected to the base, and the other side of the extrusion wall is arranged to encircle the pressure-resistant bead. The side of the pressure-resistant bead protruding from the inner layer is clamped to the steel armor ring. The connecting rod is fixedly connected to the steel armor ring. Therefore, when the pressure-resistant beads distributed in a ring array are compressed, they can support the cable protection pipe by moving the extrusion wall in the direction of compression, thereby improving the cable's compressive strength and avoiding the problem of the cable protection pipe being damaged due to simple low load pressure. Attached Figure Description

[0015] The disclosure of this utility model is illustrated with reference to the accompanying drawings. It should be understood that the drawings are for illustrative purposes only and are not intended to limit the scope of protection of this utility model. In the drawings, the same reference numerals are used to refer to the same parts. Wherein:

[0016] Figure 1 The schematic diagram shows an overall structural schematic diagram according to one embodiment of the present invention;

[0017] Figure 2 The diagram schematically shows an assembly of the inner layer, steel armor ring, and pressure-resistant beads according to one embodiment of the present invention.

[0018] Figure 3 The schematic diagram shows a multi-structure diagram of a steel armor ring according to one embodiment of the present invention;

[0019] Figure 4 The diagram schematically shows an assembly of the inner layer and the anti-compression beads according to one embodiment of the present invention.

[0020] Figure 5 The diagram schematically shows an assembly of the outer layer, inner layer, steel armor ring, and pressure-resistant beads according to one embodiment of the present invention.

[0021] The following labels are used in the diagram: 1. Outer layer; 2. Inner layer; 21. Base; 22. Extrusion wall; 3. Steel armor ring; 31. Steel armor ring; 32. Connecting rod; 4. Anti-compression bead; 5. Compensation cavity; 6. Compression direction. Detailed Implementation

[0022] It is readily understood that, based on the technical solution of this utility model, those skilled in the art can propose various interchangeable structural methods and implementations without altering the essential spirit of this utility model. Therefore, the following detailed embodiments and accompanying drawings are merely illustrative descriptions of the technical solution of this utility model and should not be considered as the entirety of this utility model or as limitations or restrictions on the technical solution of this utility model.

[0023] According to one embodiment of the present invention, in conjunction with the accompanying drawings, a cable protection pipe with strong pressure resistance is shown, including an outer layer 1 and an inner layer 2. The outer layer 1 is sleeved on the outside of the inner layer 2. A compensation cavity 5 is provided inside the inner layer 2. A pressure-resistant bead 4 is movably connected inside the compensation cavity 5. A steel armor ring 3 is provided in the interlayer between the outer layer 1 and the inner layer 2. The pressure-resistant bead 4 protrudes from one side of the compensation cavity 5 and is adapted to the steel armor ring 3.

[0024] Since the outer layer 1 is fitted outside the inner layer 2, and the inner layer 2 has a compensation cavity 5 inside, the compensation cavity 5 is movably connected to the pressure-resistant beads 4. A steel armor ring 3 is provided in the sandwich between the outer layer 1 and the inner layer 2. The pressure-resistant beads 4 protrude from one side of the compensation cavity 5 and are adapted to the steel armor ring 3. Specifically, the base 21 is used to accommodate the pressure-resistant beads 4, one side of the extrusion wall 22 is fixedly connected to the base 21, and the other side of the extrusion wall 22 is arranged to encircle the pressure-resistant beads 4. The side of the pressure-resistant beads 4 protruding from the inner layer 2 is clamped to the steel armor ring 31. The connecting rod 32 is fixedly connected to the steel armor ring 31. Therefore, when the pressure-resistant beads 4 distributed in a ring array are compressed, they can support the cable protection pipe by moving the extrusion wall 22 in the compression direction 6, thereby improving the cable's compressive strength and avoiding the problem of the cable protection pipe being damaged due to simple low load pressure.

[0025] As a further embodiment of this utility model: a cable protection pipe with strong pressure resistance, wherein the inner layer 2 includes a base 21 and an extrusion wall 22, the base 21 is used to accommodate the pressure-resistant beads 4, one side of the extrusion wall 22 is fixedly connected to the base 21, and the other side of the extrusion wall 22 is arranged to surround the pressure-resistant beads 4.

[0026] As a further embodiment of this utility model: a cable protection pipe with strong pressure resistance, wherein the steel armor ring 3 includes a steel armor ring 31 and a connecting rod 32, the pressure-resistant bead 4 protrudes from the inner layer 2 and is clamped to the steel armor ring 31, and the connecting rod 32 is fixedly connected to the steel armor ring 31.

[0027] As a further embodiment of this utility model: a cable protection pipe with strong pressure resistance, wherein one side of the steel armor ring 31 is in contact with the outer layer 1, and the outer periphery of the pressure-resistant bead 4 is in contact with the outer layer 1.

[0028] As a further embodiment of this utility model: a cable protection pipe with strong pressure resistance, further comprising a pressure-bearing direction 6, wherein the pressure-bearing direction 6 is the normal operating direction of the extrusion wall 22.

[0029] As a further embodiment of this utility model: a cable protection pipe with strong pressure resistance, wherein the outer periphery of the pressure-resistant bead 4 is polished and the pressure-resistant bead 4 is made of high carbon steel.

[0030] As a further embodiment of this utility model: a cable protection pipe with strong pressure resistance, wherein the steel armor ring 3 is made entirely of nickel-based alloy.

[0031] As a further embodiment of this utility model: a cable protection pipe with strong pressure resistance, wherein the outer layer 1 and the inner layer 2 are made entirely of polyurethane (PA).

[0032] Working principle: The outer layer 1 is fitted over the inner layer 2. The inner layer 2 has a compensation cavity 5 inside, and the compensation cavity 5 is movably connected to the pressure-resistant beads 4. A steel armor ring 3 is provided in the sandwich between the outer layer 1 and the inner layer 2. The pressure-resistant beads 4 protrude from one side of the compensation cavity 5 and are adapted to the steel armor ring 3. Specifically, the base 21 is used to accommodate the pressure-resistant beads 4. One side of the extrusion wall 22 is fixedly connected to the base 21, and the other side of the extrusion wall 22 is arranged to encircle the pressure-resistant beads 4. The side of the pressure-resistant beads 4 protruding from the inner layer 2 is clamped to the steel armor ring 31. The connecting rod 32 is fixedly connected to the steel armor ring 31. Therefore, when the pressure-resistant beads 4 distributed in a ring array are compressed, they can support the cable protection pipe by moving the extrusion wall 22 in the compression direction 6, thereby improving the cable's compressive strength and avoiding the problem of the cable protection pipe being damaged due to simple low load pressure.

[0033] The technical scope of this utility model is not limited to the content described above. Those skilled in the art can make various modifications and variations to the above embodiments without departing from the technical concept of this utility model, and all such modifications and variations should fall within the protection scope of this utility model.

Claims

1. A cable protection pipe having high pressure resistance, characterized in that, It includes an outer layer (1) and an inner layer (2). The outer layer (1) is sleeved on the outside of the inner layer (2). The inner layer (2) has a compensation cavity (5) inside. The compensation cavity (5) is movably connected to an anti-pressure bead (4). A steel armor ring (3) is provided in the interlayer between the outer layer (1) and the inner layer (2). The anti-pressure bead (4) protrudes from one side of the compensation cavity (5) and is adapted to the steel armor ring (3).

2. A crush resistant cable protection tube according to claim 1, characterised in that, The inner layer (2) includes a base (21) and an extrusion wall (22). The base (21) accommodates the pressure-resistant beads (4). One side of the extrusion wall (22) is fixedly connected to the base (21), and the other side of the extrusion wall (22) is arranged to surround the pressure-resistant beads (4).

3. A crush resistant cable protection pipe according to claim 2, characterised in that, The steel armor ring (3) includes a steel armor ring (31) and a connecting rod (32). The anti-compression bead (4) protrudes from the inner layer (2) and is clamped to the steel armor ring (31). The connecting rod (32) is fixedly connected to the steel armor ring (31).

4. A crush resistant cable protection pipe according to claim 3, characterised in that, One side of the steel armor ring (31) is in contact with the outer layer (1), and the outer periphery of the pressure-resistant bead (4) is in contact with the outer layer (1).

5. A crush resistant cable protection tube according to claim 4, characterised in that, It also includes the pressure direction (6), which is the normal operating direction of the extrusion wall (22).

6. A cable protection pipe with high compressive strength according to claim 5, characterized in that, The outer periphery of the pressure-resistant bead (4) is polished, and the pressure-resistant bead (4) is made of high carbon steel.

7. A crush resistant cable protection pipe according to claim 6, characterised in that, The steel armor ring (3) is made entirely of a nickel-based alloy.

8. A crush resistant cable protection pipe according to claim 7, characterised in that, The outer layer (1) and inner layer (2) are made entirely of polyurethane (PA).

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